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Diffstat (limited to 'tqtinterface/qt4/src/iconview/tqiconview.cpp')
| -rw-r--r-- | tqtinterface/qt4/src/iconview/tqiconview.cpp | 6493 |
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diff --git a/tqtinterface/qt4/src/iconview/tqiconview.cpp b/tqtinterface/qt4/src/iconview/tqiconview.cpp deleted file mode 100644 index 586e5ff..0000000 --- a/tqtinterface/qt4/src/iconview/tqiconview.cpp +++ /dev/null @@ -1,6493 +0,0 @@ -/**************************************************************************** -** -** Implementation of TQIconView widget class -** -** Created : 990707 -** -** Copyright (C) 2010 Timothy Pearson and (C) 1992-2008 Trolltech ASA. -** -** This file is part of the iconview module of the TQt GUI Toolkit. -** -** This file may be used under the terms of the GNU General -** Public License versions 2.0 or 3.0 as published by the Free -** Software Foundation and appearing in the files LICENSE.GPL2 -** and LICENSE.GPL3 included in the packaging of this file. -** Alternatively you may (at your option) use any later version -** of the GNU General Public License if such license has been -** publicly approved by Trolltech ASA (or its successors, if any) -** and the KDE Free TQt Foundation. -** -** Please review the following information to ensure GNU General -** Public Licensing requirements will be met: -** http://trolltech.com/products/qt/licenses/licensing/opensource/. -** If you are unsure which license is appropriate for your use, please -** review the following information: -** http://trolltech.com/products/qt/licenses/licensing/licensingoverview -** or contact the sales department at sales@trolltech.com. -** -** This file may be used under the terms of the Q Public License as -** defined by Trolltech ASA and appearing in the file LICENSE.TQPL -** included in the packaging of this file. Licensees holding valid TQt -** Commercial licenses may use this file in accordance with the TQt -** Commercial License Agreement provided with the Software. -** -** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, -** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted -** herein. -** -**********************************************************************/ - -#include "tqglobal.h" -#if defined(TQ_CC_BOR) -// needed for qsort() because of a std namespace problem on Borland -#include "tqplatformdefs.h" -#endif - -#include "tqiconview.h" - -#ifndef TQT_NO_ICONVIEW - -#include "tqfontmetrics.h" -#include "tqpainter.h" -#include "tqevent.h" -#include "tqpalette.h" -#include "tqmime.h" -#include "tqimage.h" -#include "tqpen.h" -#include "tqbrush.h" -#include "tqtimer.h" -#include "tqcursor.h" -#include "tqapplication.h" -#include "tqtextedit.h" -#include "tqmemarray.h" -#include "tqptrlist.h" -#include "tqvbox.h" -#include "tqtooltip.h" -#include "tqbitmap.h" -#include "tqpixmapcache.h" -#include "tqptrdict.h" -#include "tqstringlist.h" -#include "tqcleanuphandler.h" -#include "private/tqrichtext_p.h" -#include "tqstyle.h" - -#include <limits.h> -#include <stdlib.h> - -#define RECT_EXTENSION 300 - -static const char * const unknown_xpm[] = { - "32 32 11 1", - "c c #ffffff", - "g c #c0c0c0", - "a c #c0ffc0", - "h c #a0a0a4", - "d c #585858", - "f c #303030", - "i c #400000", - "b c #00c000", - "e c #000000", - "# c #000000", - ". c None", - "...###..........................", - "...#aa##........................", - ".###baaa##......................", - ".#cde#baaa##....................", - ".#cccdeebaaa##..##f.............", - ".#cccccdeebaaa##aaa##...........", - ".#cccccccdeebaaaaaaaa##.........", - ".#cccccccccdeebaaaaaaa#.........", - ".#cccccgcgghhebbbbaaaaa#........", - ".#ccccccgcgggdebbbbbbaa#........", - ".#cccgcgcgcgghdeebiebbba#.......", - ".#ccccgcggggggghdeddeeba#.......", - ".#cgcgcgcggggggggghghdebb#......", - ".#ccgcggggggggghghghghd#b#......", - ".#cgcgcggggggggghghghhd#b#......", - ".#gcggggggggghghghhhhhd#b#......", - ".#cgcggggggggghghghhhhd#b#......", - ".#ggggggggghghghhhhhhhdib#......", - ".#gggggggggghghghhhhhhd#b#......", - ".#hhggggghghghhhhhhhhhd#b#......", - ".#ddhhgggghghghhhhhhhhd#b#......", - "..##ddhhghghhhhhhhhhhhdeb#......", - "....##ddhhhghhhhhhhhhhd#b#......", - "......##ddhhhhhhhhhhhhd#b#......", - "........##ddhhhhhhhhhhd#b#......", - "..........##ddhhhhhhhhd#b#......", - "............##ddhhhhhhd#b###....", - "..............##ddhhhhd#b#####..", - "................##ddhhd#b######.", - "..................##dddeb#####..", - "....................##d#b###....", - "......................####......"}; - -static TQPixmap *unknown_icon = 0; -static TQPixmap *qiv_buffer_pixmap = 0; -#if !defined(TQ_WS_X11) -static TQPixmap *qiv_selection = 0; -#endif -static bool optimize_tqlayout = FALSE; - -static TQCleanupHandler<TQPixmap> qiv_cleanup_pixmap; - -#if !defined(TQ_WS_X11) -static void createSelectionPixmap( const TQColorGroup &cg ) -{ - TQBitmap m( 2, 2 ); - m.fill( TQt::color1 ); - TQPainter p( &m ); - p.setPen( TQt::color0 ); - for ( int j = 0; j < 2; ++j ) { - p.drawPoint( j % 2, j ); - } - p.end(); - - qiv_selection = new TQPixmap( 2, 2 ); - qiv_cleanup_pixmap.add( &qiv_selection ); - qiv_selection->fill( TQt::color0 ); - qiv_selection->setMask( m ); - qiv_selection->fill( cg.highlight() ); -} -#endif - -static TQPixmap *get_qiv_buffer_pixmap( const TQSize &s ) -{ - if ( !qiv_buffer_pixmap ) { - qiv_buffer_pixmap = new TQPixmap( s ); - qiv_cleanup_pixmap.add( &qiv_buffer_pixmap ); - return qiv_buffer_pixmap; - } - - qiv_buffer_pixmap->resize( s ); - return qiv_buffer_pixmap; -} - -#ifndef TQT_NO_DRAGANDDROP - -class TQM_EXPORT_ICONVIEW TQIconDragData -{ -public: - TQIconDragData(); - TQIconDragData( const TQRect &ir, const TQRect &tr ); - - TQRect pixmapRect() const; - TQRect textRect() const; - - void setPixmapRect( const TQRect &r ); - void setTextRect( const TQRect &r ); - - TQRect iconRect_, textRect_; - TQString key_; - - bool operator==( const TQIconDragData &i ) const; -}; - -class TQM_EXPORT_ICONVIEW TQIconDragDataItem -{ -public: - TQIconDragDataItem() {} - TQIconDragDataItem( const TQIconDragItem &i1, const TQIconDragData &i2 ) : data( i1 ), item( i2 ) {} - TQIconDragItem data; - TQIconDragData item; - bool operator== ( const TQIconDragDataItem& ) const; -}; - -class TQIconDragPrivate -{ -public: - TQValueList<TQIconDragDataItem> items; - static bool decode( TQMimeSource* e, TQValueList<TQIconDragDataItem> &lst ); -}; - -#endif - -class TQIconViewToolTip; - -class TQIconViewPrivate -{ -public: - TQIconViewItem *firstItem, *lastItem; - uint count; - TQIconView::SelectionMode selectionMode; - TQIconViewItem *currentItem, *tmpCurrentItem, *highlightedItem, - *startDragItem, *pressedItem, *selectAnchor, *renamingItem; - TQRect *rubber; - TQTimer *scrollTimer, *adjustTimer, *updateTimer, *inputTimer, - *fullRedrawTimer; - int rastX, rastY, spacing; - int dragItems; - TQPoint oldDragPos; - TQIconView::Arrangement arrangement; - TQIconView::ResizeMode resizeMode; - TQSize oldSize; -#ifndef TQT_NO_DRAGANDDROP - TQValueList<TQIconDragDataItem> iconDragData; -#endif - int numDragItems, cachedW, cachedH; - int maxItemWidth, maxItemTextLength; - TQPoint dragStart; - TQString currInputString; - TQIconView::ItemTextPos itemTextPos; -#ifndef TQT_NO_CURSOR - TQCursor oldCursor; -#endif - int cachedContentsX, cachedContentsY; - TQBrush itemTextBrush; - TQRegion clipRegion; - TQPoint dragStartPos; - TQFontMetrics *fm; - int minLeftBearing, minRightBearing; - - uint mousePressed :1; - uint cleared :1; - uint dropped :1; - uint clearing :1; - uint oldDragAcceptAction :1; - uint isIconDrag :1; - uint drawDragShapes :1; - uint dirty :1; - uint rearrangeEnabled :1; - uint reorderItemsWhenInsert :1; - uint drawAllBack :1; - uint resortItemsWhenInsert :1; - uint sortDirection :1; - uint wordWrapIconText :1; - uint containerUpdateLocked :1; - uint firstSizeHint : 1; - uint showTips :1; - uint pressedSelected :1; - uint dragging :1; - uint drawActiveSelection :1; - uint inMenuMode :1; - - TQIconViewToolTip *toolTip; - TQPixmapCache maskCache; - TQPixmap *backrubber; - TQPtrDict<TQIconViewItem> selectedItems; - - struct ItemContainer { - ItemContainer( ItemContainer *pr, ItemContainer *nx, const TQRect &r ) - : p( pr ), n( nx ), rect( r ) { - items.setAutoDelete( FALSE ); - if ( p ) - p->n = this; - if ( n ) - n->p = this; - } - ItemContainer *p, *n; - TQRect rect; - TQPtrList<TQIconViewItem> items; - } *firstContainer, *lastContainer; - - struct SortableItem { - TQIconViewItem *item; - }; - -public: - - /* finds the containers that intersect with \a searchRect in the direction \a dir relative to \a relativeTo */ - TQPtrList<ItemContainer>* findContainers( - TQIconView:: Direction dir, - const TQPoint &relativeTo, - const TQRect &searchRect ) const; - // friend int cmpIconViewItems( const void *n1, const void *n2 ); -}; - - -TQPtrList<TQIconViewPrivate::ItemContainer>* TQIconViewPrivate::findContainers( - TQIconView:: Direction dir, - const TQPoint &relativeTo, - const TQRect &searchRect ) const -{ - - TQPtrList<TQIconViewPrivate::ItemContainer>* list = - new TQPtrList<TQIconViewPrivate::ItemContainer>(); - - if ( arrangement == TQIconView::LeftToRight ) { - if ( dir == TQIconView::DirLeft || dir == TQIconView::DirRight ) { - ItemContainer *c = firstContainer; - for ( ; c; c = c->n ) - if ( c->rect.intersects( searchRect ) ) - list->append( c ); - } else { - if ( dir == TQIconView::DirDown ) { - ItemContainer *c = firstContainer; - for ( ; c; c = c->n ) - if ( c->rect.intersects( searchRect ) && - c->rect.bottom() >= relativeTo.y() ) - list->append( c ); - } else { - ItemContainer *c = lastContainer; - for ( ; c; c = c->p ) - if ( c->rect.intersects( searchRect ) && - c->rect.top() <= relativeTo.y() ) - list->append( c ); - } - } - } else { - if ( dir == TQIconView::DirUp || dir == TQIconView::DirDown ) { - ItemContainer *c = firstContainer; - for ( ; c; c = c->n ) - if ( c->rect.intersects( searchRect ) ) - list->append( c ); - } else { - if ( dir == TQIconView::DirRight ) { - ItemContainer *c = firstContainer; - for ( ; c; c = c->n ) - if ( c->rect.intersects( searchRect ) && - c->rect.right() >= relativeTo.x() ) - list->append( c ); - } else { - ItemContainer *c = lastContainer; - for ( ; c; c = c->p ) - if ( c->rect.intersects( searchRect ) && - c->rect.left() <= relativeTo.x() ) - list->append( c ); - } - } - } - return list; -} - - -#if defined(TQ_C_CALLBACKS) -extern "C" { -#endif - -#ifdef TQ_OS_TEMP -static int _cdecl cmpIconViewItems( const void *n1, const void *n2 ) -#else -static int cmpIconViewItems( const void *n1, const void *n2 ) -#endif -{ - if ( !n1 || !n2 ) - return 0; - - TQIconViewPrivate::SortableItem *i1 = (TQIconViewPrivate::SortableItem *)n1; - TQIconViewPrivate::SortableItem *i2 = (TQIconViewPrivate::SortableItem *)n2; - - return i1->item->compare( i2->item ); -} - -#if defined(TQ_C_CALLBACKS) -} -#endif - - -#ifndef TQT_NO_TOOLTIP -class TQIconViewToolTip : public TQToolTip -{ -public: - TQIconViewToolTip( TQWidget *parent, TQIconView *iv ); - - void maybeTip( const TQPoint &pos ); - -private: - TQIconView *view; -}; - -TQIconViewToolTip::TQIconViewToolTip( TQWidget *parent, TQIconView *iv ) - : TQToolTip( parent ), view( iv ) -{ -} - -void TQIconViewToolTip::maybeTip( const TQPoint &pos ) -{ - if ( !parentWidget() || !view || view->wordWrapIconText() || !view->showToolTips() ) - return; - - TQIconViewItem *item = view->findItem( view->viewportToContents( pos ) ); - if ( !item || item->tmpText == item->itemText ) - return; - - TQRect r( item->textRect( FALSE ) ); - TQRect r2 = item->pixmapRect( FALSE ); - /* this probably should be | r, but TQToolTip does not handle that - * well */ - - // At this point the rectangle is too small (it is the width of the icon) - // since we need it to be bigger than that, extend it here. - r.setWidth( view->d->fm->boundingRect( item->itemText ).width() + 4 ); - r = TQRect( view->contentsToViewport( TQPoint( r.x(), r.y() ) ), TQSize( r.width(), r.height() ) ); - - r2 = TQRect( view->contentsToViewport( TQPoint( r2.x(), r2.y() ) ), TQSize( r2.width(), r2.height() ) ); - tip( r2, item->itemText, r ); -} -#endif - - -class TQIconViewItemPrivate -{ -public: - TQIconViewPrivate::ItemContainer *container1, *container2; -}; - -#ifndef TQT_NO_TEXTEDIT - -class TQIconViewItemLineEdit : public TQTextEdit -{ - friend class TQIconViewItem; - -public: - TQIconViewItemLineEdit( const TQString &text, TQWidget *parent, TQIconViewItem *theItem, const char* name=0 ); - -protected: - void keyPressEvent( TQKeyEvent *e ); - void focusOutEvent( TQFocusEvent *e ); - -protected: - TQIconViewItem *item; - TQString startText; -private: -#if defined(TQ_DISABLE_COPY) // Disabled copy constructor and operator= - TQIconViewItemLineEdit( const TQIconViewItemLineEdit & ); - TQIconViewItemLineEdit &operator=( const TQIconViewItemLineEdit & ); -#endif - -}; - -TQIconViewItemLineEdit::TQIconViewItemLineEdit( const TQString &text, TQWidget *parent, - TQIconViewItem *theItem, const char *name ) - : TQTextEdit( parent, name ), item( theItem ), startText( text ) -{ - setFrameStyle( TQFrame::Plain | TQFrame::Box ); - setLineWidth( 1 ); - - setHScrollBarMode( AlwaysOff ); - setVScrollBarMode( AlwaysOff ); - - setWordWrap( WidgetWidth ); - setWrapColumnOrWidth( item->iconView()->maxItemWidth() - - ( item->iconView()->itemTextPos() == TQIconView::Bottom ? - 0 : item->pixmapRect().width() ) ); - document()->formatter()->setAllowBreakInWords( TRUE ); - resize( 200, 200 ); // ### some size, there should be a forceReformat() - setTextFormat( TQt::PlainText ); - setText( text ); - tqsetAlignment( TQt::AlignCenter ); - - resize( wrapColumnOrWidth() + 2, heightForWidth( wrapColumnOrWidth() ) + 2 ); -} - -void TQIconViewItemLineEdit::keyPressEvent( TQKeyEvent *e ) -{ - if ( e->key() == Key_Escape ) { - item->TQIconViewItem::setText( startText ); - item->cancelRenameItem(); - } else if ( e->key() == Qt::Key_Enter || - e->key() == Qt::Key_Return ) { - item->renameItem(); - } else { - TQTextEdit::keyPressEvent( e ); - sync(); - resize( width(), document()->height() + 2 ); - - } -} - -void TQIconViewItemLineEdit::focusOutEvent( TQFocusEvent *e ) -{ - TQ_UNUSED(e) // I need this to get rid of a Borland warning - if ( e->reason() != TQFocusEvent::Popup ) - item->cancelRenameItem(); -} -#endif - -#ifndef TQT_NO_DRAGANDDROP - - -/*! - \class TQIconDragItem tqiconview.h - \ingroup draganddrop - - \brief The TQIconDragItem class encapsulates a drag item. - - \module iconview - - The TQIconDrag class uses a list of TQIconDragItems to support drag - and drop operations. - - In practice a TQIconDragItem object (or an object of a class derived - from TQIconDragItem) is created for each icon view item which is - dragged. Each of these TQIconDragItems is stored in a TQIconDrag - object. - - See TQIconView::dragObject() for more information. - - See the \l fileiconview/qfileiconview.cpp and - \l iconview/simple_dd/main.cpp examples. -*/ - -/*! - Constructs a TQIconDragItem with no data. -*/ - -TQIconDragItem::TQIconDragItem() - : ba( (int)strlen( "no data" ) ) -{ - memcpy( ba.data(), "no data", strlen( "no data" ) ); -} - -/*! - Destructor. -*/ - -TQIconDragItem::~TQIconDragItem() -{ -} - -/*! - Returns the data contained in the TQIconDragItem. -*/ - -TQByteArray TQIconDragItem::data() const -{ - return ba; -} - -/*! - Sets the data for the TQIconDragItem to the data stored in the - TQByteArray \a d. -*/ - -void TQIconDragItem::setData( const TQByteArray &d ) -{ - ba = d; -} - -/*! - \reimp -*/ - -bool TQIconDragItem::operator==( const TQIconDragItem &i ) const -{ - return ba == i.ba; -} - -/*! - \reimp -*/ - -bool TQIconDragDataItem::operator==( const TQIconDragDataItem &i ) const -{ - return ( i.item == item && - i.data == data ); -} - -/*! - \reimp -*/ - -bool TQIconDragData::operator==( const TQIconDragData &i ) const -{ - return key_ == i.key_; -} - - -/*! - \class TQIconDrag tqiconview.h - - \brief The TQIconDrag class supports drag and drop operations - within a TQIconView. - - \ingroup draganddrop - \module iconview - - A TQIconDrag object is used to maintain information about the - positions of dragged items and the data associated with the - dragged items. TQIconViews are able to use this information to - paint the dragged items in the correct positions. Internally - TQIconDrag stores the data associated with drag items in - TQIconDragItem objects. - - If you want to use the extended drag-and-drop functionality of - TQIconView, create a TQIconDrag object in a reimplementation of - TQIconView::dragObject(). Then create a TQIconDragItem for each item - which should be dragged, set the data it represents with - TQIconDragItem::setData(), and add each TQIconDragItem to the drag - object using append(). - - The data in TQIconDragItems is stored in a TQByteArray and is - mime-typed (see TQMimeSource and the - \link http://doc.trolltech.com/dnd.html Drag and Drop\endlink - overview). If you want to use your own mime-types derive a class - from TQIconDrag and reimplement format(), tqencodedData() and - canDecode(). - - The fileiconview example program demonstrates the use of the - TQIconDrag class including subclassing and reimplementing - dragObject(), format(), tqencodedData() and canDecode(). See the files - \c qt/examples/fileiconview/qfileiconview.h and - \c qt/examples/fileiconview/qfileiconview.cpp. - - \sa TQMimeSource::format() -*/ -// ### consider using \dontinclude and friends there -// ### Not here in the module overview instead... - -/*! - Constructs a drag object called \a name, which is a child of \a - dragSource. - - Note that the drag object will be deleted when \a dragSource is deleted. -*/ - -TQIconDrag::TQIconDrag( TQWidget * dragSource, const char* name ) - : TQDragObject( dragSource, name ) -{ - d = new TQIconDragPrivate; -} - -/*! - Destructor. -*/ - -TQIconDrag::~TQIconDrag() -{ - delete d; -} - -/*! - Append the TQIconDragItem, \a i, to the TQIconDrag object's list of - items. You must also supply the tqgeometry of the pixmap, \a pr, and - the textual caption, \a tr. - - \sa TQIconDragItem -*/ - -void TQIconDrag::append( const TQIconDragItem &i, const TQRect &pr, const TQRect &tr ) -{ - d->items.append( TQIconDragDataItem( i, TQIconDragData( pr, tr ) ) ); -} - -/*! - \reimp -*/ - -const char* TQIconDrag::format( int i ) const -{ - if ( i == 0 ) - return "application/x-qiconlist"; - return 0; -} - -/*! - Returns the encoded data of the drag object if \a mime is - application/x-qiconlist. -*/ - -TQByteArray TQIconDrag::tqencodedData( const char* mime ) const -{ - if ( d->items.count() <= 0 || TQString( mime ) != - "application/x-qiconlist" ) - return TQByteArray(); - - TQValueList<TQIconDragDataItem>::ConstIterator it = d->items.begin(); - TQString s; - for ( ; it != d->items.end(); ++it ) { - TQString k( "%1$@@$%2$@@$%3$@@$%4$@@$%5$@@$%6$@@$%7$@@$%8$@@$" ); - k = k.arg( (*it).item.pixmapRect().x() ).arg( - (*it).item.pixmapRect().y() ).arg( (*it).item.pixmapRect().width() ). - arg( (*it).item.pixmapRect().height() ).arg( - (*it).item.textRect().x() ).arg( (*it).item.textRect().y() ). - arg( (*it).item.textRect().width() ).arg( - (*it).item.textRect().height() ); - k += TQString( (*it).data.data() ) + "$@@$"; - s += k; - } - - TQByteArray a( s.length() + 1 ); - memcpy( a.data(), s.latin1(), a.size() ); - return a; -} - -/*! - Returns TRUE if \a e can be decoded by the TQIconDrag, otherwise - return FALSE. -*/ - -bool TQIconDrag::canDecode( TQMimeSource* e ) -{ - if ( e->provides( "application/x-qiconlist" ) ) - return TRUE; - return FALSE; -} - -/*! - Decodes the data which is stored (encoded) in \a e and, if - successful, fills the \a list of icon drag items with the decoded - data. Returns TRUE if there was some data, FALSE otherwise. -*/ - -bool TQIconDragPrivate::decode( TQMimeSource* e, TQValueList<TQIconDragDataItem> &lst ) -{ - TQByteArray ba = e->tqencodedData( "application/x-qiconlist" ); - if ( ba.size() ) { - lst.clear(); - TQString s = ba.data(); - TQIconDragDataItem item; - TQRect ir, tr; - TQStringList l = TQStringList::split( "$@@$", s ); - - int i = 0; - TQStringList::Iterator it = l.begin(); - for ( ; it != l.end(); ++it ) { - if ( i == 0 ) { - ir.setX( ( *it ).toInt() ); - } else if ( i == 1 ) { - ir.setY( ( *it ).toInt() ); - } else if ( i == 2 ) { - ir.setWidth( ( *it ).toInt() ); - } else if ( i == 3 ) { - ir.setHeight( ( *it ).toInt() ); - } else if ( i == 4 ) { - tr.setX( ( *it ).toInt() ); - } else if ( i == 5 ) { - tr.setY( ( *it ).toInt() ); - } else if ( i == 6 ) { - tr.setWidth( ( *it ).toInt() ); - } else if ( i == 7 ) { - tr.setHeight( ( *it ).toInt() ); - } else if ( i == 8 ) { - TQByteArray d( ( *it ).length() ); - memcpy( d.data(), ( *it ).latin1(), ( *it ).length() ); - item.item.setPixmapRect( ir ); - item.item.setTextRect( tr ); - item.data.setData( d ); - lst.append( item ); - } - ++i; - if ( i > 8 ) - i = 0; - } - return TRUE; - } - - return FALSE; -} - -TQIconDragData::TQIconDragData() - : iconRect_(), textRect_() -{ -} - -TQIconDragData::TQIconDragData( const TQRect &ir, const TQRect &tr ) - : iconRect_( ir ), textRect_( tr ) -{ -} - -TQRect TQIconDragData::textRect() const -{ - return textRect_; -} - -TQRect TQIconDragData::pixmapRect() const -{ - return iconRect_; -} - -void TQIconDragData::setPixmapRect( const TQRect &r ) -{ - iconRect_ = r; -} - -void TQIconDragData::setTextRect( const TQRect &r ) -{ - textRect_ = r; -} - -#endif - - -/*! - \class TQIconViewItem tqiconview.h - \brief The TQIconViewItem class provides a single item in a TQIconView. - - \ingroup advanced - \module iconview - - A TQIconViewItem contains an icon, a string and optionally a sort - key, and can display itself in a TQIconView. - The class is designed to be very similar to TQListView and TQListBox - in use, both via instantiation and subclassing. - - The simplest way to create a TQIconViewItem and insert it into a - TQIconView is to construct the item passing the constructor a - pointer to the icon view, a string and an icon: - - \code - (void) new TQIconViewItem( - iconView, // A pointer to a TQIconView - "This is the text of the item", - aPixmap ); - \endcode - - By default the text of an icon view item may not be edited by the - user but calling setRenameEnabled(TRUE) will allow the user to - perform in-place editing of the item's text. - - When the icon view is deleted all items in it are deleted - automatically. - - The TQIconView::firstItem() and TQIconViewItem::nextItem() functions - provide a means of iterating over all the items in a TQIconView: - - \code - TQIconViewItem *item; - for ( item = iconView->firstItem(); item; item = item->nextItem() ) - do_something_with( item ); - \endcode - - The item's icon view is available from iconView(), and its - position in the icon view from index(). - - The item's selection status is available from isSelected() and is - set and controlled by setSelected() and isSelectable(). - - The text and icon can be set with setText() and setPixmap() and - retrieved with text() and pixmap(). The item's sort key defaults - to text() but may be set with setKey() and retrieved with key(). - The comparison function, compare() uses key(). - - Items may be repositioned with move() and moveBy(). An item's - tqgeometry is available from rect(), x(), y(), width(), height(), - size(), pos(), textRect() and pixmapRect(). You can also test - against the position of a point with contains() and intersects(). - - To remove an item from an icon view, just delete the item. The - TQIconViewItem destructor removes it cleanly from its icon view. - - Because the icon view is designed to use drag-and-drop, the icon - view item also has functions for drag-and-drop which may be - reimplemented. - - \target pixmap-size-limit - <b>Note:</b> Pixmaps with individual dimensions larger than 300 pixels may - not be displayed properly, depending on the \link TQIconView::Arrangement - arrangement in use\endlink. For example, pixmaps wider than 300 pixels - will not be arranged correctly if the icon view uses a - \l TQIconView::TopToBottom arrangement, and pixmaps taller than 300 pixels - will not be arranged correctly if the icon view uses a - \l TQIconView::LeftToRight arrangement. -*/ - -/*! - Constructs a TQIconViewItem and inserts it into icon view \a parent - with no text and a default icon. -*/ - -TQIconViewItem::TQIconViewItem( TQIconView *parent ) - : view( parent ), itemText(), itemIcon( unknown_icon ) -{ - init(); -} - -/*! - Constructs a TQIconViewItem and inserts it into the icon view \a - parent with no text and a default icon, after the icon view item - \a after. -*/ - -TQIconViewItem::TQIconViewItem( TQIconView *parent, TQIconViewItem *after ) - : view( parent ), itemText(), itemIcon( unknown_icon ), - prev( 0 ), next( 0 ) -{ - init( after ); -} - -/*! - Constructs an icon view item and inserts it into the icon view \a - parent using \a text as the text and a default icon. -*/ - -TQIconViewItem::TQIconViewItem( TQIconView *parent, const TQString &text ) - : view( parent ), itemText( text ), itemIcon( unknown_icon ) -{ - init( 0 ); -} - -/*! - Constructs an icon view item and inserts it into the icon view \a - parent using \a text as the text and a default icon, after the - icon view item \a after. -*/ - -TQIconViewItem::TQIconViewItem( TQIconView *parent, TQIconViewItem *after, - const TQString &text ) - : view( parent ), itemText( text ), itemIcon( unknown_icon ) -{ - init( after ); -} - -/*! - Constructs an icon view item and inserts it into the icon view \a - parent using \a text as the text and \a icon as the icon. -*/ - -TQIconViewItem::TQIconViewItem( TQIconView *parent, const TQString &text, - const TQPixmap &icon ) - : view( parent ), - itemText( text ), itemIcon( new TQPixmap( icon ) ) -{ - init( 0 ); -} - - -/*! - Constructs an icon view item and inserts it into the icon view \a - parent using \a text as the text and \a icon as the icon, after - the icon view item \a after. - - \sa setPixmap() -*/ - -TQIconViewItem::TQIconViewItem( TQIconView *parent, TQIconViewItem *after, - const TQString &text, const TQPixmap &icon ) - : view( parent ), itemText( text ), itemIcon( new TQPixmap( icon ) ) -{ - init( after ); -} - -/*! - Constructs an icon view item and inserts it into the icon view \a - parent using \a text as the text and \a picture as the icon. -*/ - -#ifndef TQT_NO_PICTURE -TQIconViewItem::TQIconViewItem( TQIconView *parent, const TQString &text, - const TQPicture &picture ) - : view( parent ), itemText( text ), itemIcon( 0 ) -{ - init( 0, new TQPicture( picture ) ); -} - -/*! - Constructs an icon view item and inserts it into the icon view \a - parent using \a text as the text and \a picture as the icon, after - the icon view item \a after. -*/ - -TQIconViewItem::TQIconViewItem( TQIconView *parent, TQIconViewItem *after, - const TQString &text, const TQPicture &picture ) - : view( parent ), itemText( text ), itemIcon( 0 ) -{ - init( after, new TQPicture( picture ) ); -} -#endif - -/*! - This private function initializes the icon view item and inserts it - into the icon view. -*/ - -void TQIconViewItem::init( TQIconViewItem *after -#ifndef TQT_NO_PICTURE - , TQPicture *pic -#endif - ) -{ - d = new TQIconViewItemPrivate; - d->container1 = 0; - d->container2 = 0; - prev = next = 0; - allow_rename = FALSE; - allow_drag = TRUE; - allow_drop = TRUE; - visible = TRUE; - selected = FALSE; - selectable = TRUE; -#ifndef TQT_NO_TEXTEDIT - renameBox = 0; -#endif -#ifndef TQT_NO_PICTURE - itemPic = pic; -#endif - if ( view ) { - itemKey = itemText; - dirty = TRUE; - wordWrapDirty = TRUE; - tqitemRect = TQRect( -1, -1, 0, 0 ); - calcRect(); - view->insertItem( this, after ); - } -} - -/*! - Destroys the icon view item and tells the parent icon view that - the item has been destroyed. -*/ - -TQIconViewItem::~TQIconViewItem() -{ -#ifndef TQT_NO_TEXTEDIT - removeRenameBox(); -#endif - if ( view && !view->d->clearing ) - view->takeItem( this ); - view = 0; - if ( itemIcon && itemIcon->serialNumber() != unknown_icon->serialNumber() ) - delete itemIcon; -#ifndef TQT_NO_PICTURE - delete itemPic; -#endif - delete d; -} - -int TQIconViewItem::RTTI = 0; - -/*! - Returns 0. - - Make your derived classes return their own values for rtti(), so - that you can distinguish between icon view item types. You should - use values greater than 1000, preferably a large random number, to - allow for extensions to this class. -*/ - -int TQIconViewItem::rtti() const -{ - return RTTI; -} - -/*! - If \a b is TRUE, the item is made visible; otherwise it is hidden. -*/ - -void TQIconViewItem::setVisible( bool b ) -{ - if ( b == (bool)visible ) - return; - TQIconView *iv = iconView(); - if ( !iv ) - return; - visible = b; - if ( iv ) - iv->updateContents(); -} - -/*! - Returns TRUE if the item is visible; otherwise returns FALSE. - - \sa setVisible() -*/ - -bool TQIconViewItem::isVisible() const -{ - return (bool)visible; -} - -/*! - Sets \a text as the text of the icon view item. This function - might be a no-op if you reimplement text(). - - \sa text() -*/ - -void TQIconViewItem::setText( const TQString &text ) -{ - if ( text == itemText ) - return; - - wordWrapDirty = TRUE; - itemText = text; - if ( itemKey.isEmpty() ) - itemKey = itemText; - - TQRect oR = rect(); - calcRect(); - oR = oR.unite( rect() ); - - if ( view ) { - if ( TQRect( view->contentsX(), view->contentsY(), - view->visibleWidth(), view->visibleHeight() ). - intersects( oR ) ) - view->repaintContents( oR.x() - 1, oR.y() - 1, - oR.width() + 2, oR.height() + 2, FALSE ); - } -} - -/*! - Sets \a k as the sort key of the icon view item. By default - text() is used for sorting. - - \sa compare() -*/ - -void TQIconViewItem::setKey( const TQString &k ) -{ - if ( k == itemKey ) - return; - - itemKey = k; -} - -/*! - Sets \a icon as the item's icon in the icon view. This function - might be a no-op if you reimplement pixmap(). - - <b>Note:</b> Pixmaps with individual dimensions larger than 300 pixels may - not be displayed properly, depending on the \link TQIconView::Arrangement - arrangement in use\endlink. See the \link #pixmap-size-limit main class - documentation\endlink for details. - - \sa pixmap() -*/ - -void TQIconViewItem::setPixmap( const TQPixmap &icon ) -{ - if ( itemIcon && itemIcon == unknown_icon ) - itemIcon = 0; - - if ( itemIcon ) - *itemIcon = icon; - else - itemIcon = new TQPixmap( icon ); - TQRect oR = rect(); - calcRect(); - oR = oR.unite( rect() ); - - if ( view ) { - if ( TQRect( view->contentsX(), view->contentsY(), - view->visibleWidth(), view->visibleHeight() ). - intersects( oR ) ) - view->repaintContents( oR.x() - 1, oR.y() - 1, - oR.width() + 2, oR.height() + 2, FALSE ); - } -} - -/*! - Sets \a icon as the item's icon in the icon view. This function - might be a no-op if you reimplement picture(). - - \sa picture() -*/ - -#ifndef TQT_NO_PICTURE -void TQIconViewItem::setPicture( const TQPicture &icon ) -{ - // clear assigned pixmap if any - if ( itemIcon ) { - if ( itemIcon == unknown_icon ) { - itemIcon = 0; - } else { - delete itemIcon; - itemIcon = 0; - } - } - if ( itemPic ) - delete itemPic; - itemPic = new TQPicture( icon ); - - TQRect oR = rect(); - calcRect(); - oR = oR.unite( rect() ); - - if ( view ) { - if ( TQRect( view->contentsX(), view->contentsY(), - view->visibleWidth(), view->visibleHeight() ). - intersects( oR ) ) - view->repaintContents( oR.x() - 1, oR.y() - 1, - oR.width() + 2, oR.height() + 2, FALSE ); - } -} -#endif - -/*! - \overload - - Sets \a text as the text of the icon view item. If \a recalc is - TRUE, the icon view's tqlayout is recalculated. If \a redraw is TRUE - (the default), the icon view is repainted. - - \sa text() -*/ - -void TQIconViewItem::setText( const TQString &text, bool recalc, bool redraw ) -{ - if ( text == itemText ) - return; - - wordWrapDirty = TRUE; - itemText = text; - - if ( recalc ) - calcRect(); - if ( redraw ) - tqrepaint(); -} - -/*! - \overload - - Sets \a icon as the item's icon in the icon view. If \a recalc is - TRUE, the icon view's tqlayout is recalculated. If \a redraw is TRUE - (the default), the icon view is repainted. - - <b>Note:</b> Pixmaps with individual dimensions larger than 300 pixels may - not be displayed properly, depending on the \link TQIconView::Arrangement - arrangement in use\endlink. See the \link #pixmap-size-limit main class - documentation\endlink for details. - - \sa pixmap() -*/ - -void TQIconViewItem::setPixmap( const TQPixmap &icon, bool recalc, bool redraw ) -{ - if ( itemIcon && itemIcon == unknown_icon ) - itemIcon = 0; - - if ( itemIcon ) - *itemIcon = icon; - else - itemIcon = new TQPixmap( icon ); - - if ( redraw ) { - if ( recalc ) { - TQRect oR = rect(); - calcRect(); - oR = oR.unite( rect() ); - - if ( view ) { - if ( TQRect( view->contentsX(), view->contentsY(), - view->visibleWidth(), view->visibleHeight() ). - intersects( oR ) ) - view->repaintContents( oR.x() - 1, oR.y() - 1, - oR.width() + 2, oR.height() + 2, FALSE ); - } - } else { - tqrepaint(); - } - } else if ( recalc ) { - calcRect(); - } -} - -/*! - If \a allow is TRUE, the user can rename the icon view item by - clicking on the text (or pressing F2) while the item is selected - (in-place renaming). If \a allow is FALSE, in-place renaming is - not possible. -*/ - -void TQIconViewItem::setRenameEnabled( bool allow ) -{ - allow_rename = (uint)allow; -} - -/*! - If \a allow is TRUE, the icon view permits the user to drag the - icon view item either to another position within the icon view or - to somewhere outside of it. If \a allow is FALSE, the item cannot - be dragged. -*/ - -void TQIconViewItem::setDragEnabled( bool allow ) -{ - allow_drag = (uint)allow; -} - -/*! - If \a allow is TRUE, the icon view lets the user drop something on - this icon view item. -*/ - -void TQIconViewItem::setDropEnabled( bool allow ) -{ - allow_drop = (uint)allow; -} - -/*! - Returns the text of the icon view item. Normally you set the text - of the item with setText(), but sometimes it's inconvenient to - call setText() for every item; so you can subclass TQIconViewItem, - reimplement this function, and return the text of the item. If you - do this, you must call calcRect() manually each time the text - (and therefore its size) changes. - - \sa setText() -*/ - -TQString TQIconViewItem::text() const -{ - return itemText; -} - -/*! - Returns the key of the icon view item or text() if no key has been - explicitly set. - - \sa setKey(), compare() -*/ - -TQString TQIconViewItem::key() const -{ - return itemKey; -} - -/*! - Returns the icon of the icon view item if it is a pixmap, or 0 if - it is a picture. In the latter case use picture() instead. - Normally you set the pixmap of the item with setPixmap(), but - sometimes it's inconvenient to call setPixmap() for every item. So - you can subclass TQIconViewItem, reimplement this function and - return a pointer to the item's pixmap. If you do this, you \e must - call calcRect() manually each time the size of this pixmap - changes. - - \sa setPixmap() -*/ - -TQPixmap *TQIconViewItem::pixmap() const -{ - return itemIcon; -} - -/*! - Returns the icon of the icon view item if it is a picture, or 0 if - it is a pixmap. In the latter case use pixmap() instead. Normally - you set the picture of the item with setPicture(), but sometimes - it's inconvenient to call setPicture() for every item. So you can - subclass TQIconViewItem, reimplement this function and return a - pointer to the item's picture. If you do this, you \e must call - calcRect() manually each time the size of this picture changes. - - \sa setPicture() -*/ - -#ifndef TQT_NO_PICTURE -TQPicture *TQIconViewItem::picture() const -{ - return itemPic; -} -#endif - -/*! - Returns TRUE if the item can be renamed by the user with in-place - renaming; otherwise returns FALSE. - - \sa setRenameEnabled() -*/ - -bool TQIconViewItem::renameEnabled() const -{ - return (bool)allow_rename; -} - -/*! - Returns TRUE if the user is allowed to drag the icon view item; - otherwise returns FALSE. - - \sa setDragEnabled() -*/ - -bool TQIconViewItem::dragEnabled() const -{ - return (bool)allow_drag; -} - -/*! - Returns TRUE if the user is allowed to drop something onto the - item; otherwise returns FALSE. - - \sa setDropEnabled() -*/ - -bool TQIconViewItem::dropEnabled() const -{ - return (bool)allow_drop; -} - -/*! - Returns a pointer to this item's icon view parent. -*/ - -TQIconView *TQIconViewItem::iconView() const -{ - return view; -} - -/*! - Returns a pointer to the previous item, or 0 if this is the first - item in the icon view. - - \sa nextItem() TQIconView::firstItem() -*/ - -TQIconViewItem *TQIconViewItem::prevItem() const -{ - return prev; -} - -/*! - Returns a pointer to the next item, or 0 if this is the last item - in the icon view. - - To find the first item use TQIconView::firstItem(). - - Example: - \code - TQIconViewItem *item; - for ( item = iconView->firstItem(); item; item = item->nextItem() ) - do_something_with( item ); - \endcode - - \sa prevItem() -*/ - -TQIconViewItem *TQIconViewItem::nextItem() const -{ - return next; -} - -/*! - Returns the index of this item in the icon view, or -1 if an error - occurred. -*/ - -int TQIconViewItem::index() const -{ - if ( view ) - return view->index( this ); - - return -1; -} - - - -/*! - \overload - - This variant is equivalent to calling the other variant with \e cb - set to FALSE. -*/ - -void TQIconViewItem::setSelected( bool s ) -{ - setSelected( s, FALSE ); -} - -/*! - Selects or unselects the item, depending on \a s; it may also - unselect other items, depending on TQIconView::selectionMode() and - \a cb. - - If \a s is FALSE, the item is unselected. - - If \a s is TRUE and TQIconView::selectionMode() is \c Single, the - item is selected and the item previously selected is unselected. - - If \a s is TRUE and TQIconView::selectionMode() is \c Extended, the - item is selected. If \a cb is TRUE, the selection state of the - other items is left unchanged. If \a cb is FALSE (the default) all - other items are unselected. - - If \a s is TRUE and TQIconView::selectionMode() is \c Multi, the - item is selected. - - Note that \a cb is used only if TQIconView::selectionMode() is \c - Extended; cb defaults to FALSE. - - All items whose selection status changes tqrepaint themselves. -*/ - -void TQIconViewItem::setSelected( bool s, bool cb ) -{ - if ( !view ) - return; - if ( view->selectionMode() != TQIconView::NoSelection && - selectable && s != (bool)selected ) { - - if ( view->d->selectionMode == TQIconView::Single && this != view->d->currentItem ) { - TQIconViewItem *o = view->d->currentItem; - if ( o && o->selected ) - o->selected = FALSE; - view->d->currentItem = this; - if ( o ) - o->tqrepaint(); - emit view->currentChanged( this ); - } - - if ( !s ) { - selected = FALSE; - } else { - if ( view->d->selectionMode == TQIconView::Single && view->d->currentItem ) { - view->d->currentItem->selected = FALSE; - } - if ( ( view->d->selectionMode == TQIconView::Extended && !cb ) || - view->d->selectionMode == TQIconView::Single ) { - bool b = view->tqsignalsBlocked(); - view->blockSignals( TRUE ); - view->selectAll( FALSE ); - view->blockSignals( b ); - } - selected = s; - } - - tqrepaint(); - if ( !view->tqsignalsBlocked() ) { - bool emitIt = view->d->selectionMode == TQIconView::Single && s; - TQIconView *v = view; - emit v->selectionChanged(); - if ( emitIt ) - emit v->selectionChanged( this ); - } - } -} - -/*! - Sets this item to be selectable if \a enable is TRUE (the default) - or unselectable if \a enable is FALSE. - - The user is unable to select a non-selectable item using either - the keyboard or the mouse. (The application programmer can select - an item in code regardless of this setting.) - - \sa isSelectable() -*/ - -void TQIconViewItem::setSelectable( bool enable ) -{ - selectable = (uint)enable; -} - -/*! - Returns TRUE if the item is selected; otherwise returns FALSE. - - \sa setSelected() -*/ - -bool TQIconViewItem::isSelected() const -{ - return (bool)selected; -} - -/*! - Returns TRUE if the item is selectable; otherwise returns FALSE. - - \sa setSelectable() -*/ - -bool TQIconViewItem::isSelectable() const -{ - return (bool)selectable; -} - -/*! - Repaints the item. -*/ - -void TQIconViewItem::tqrepaint() -{ - if ( view ) - view->repaintItem( this ); -} - -/*! - Moves the item to position (\a x, \a y) in the icon view (these - are contents coordinates). -*/ - -bool TQIconViewItem::move( int x, int y ) -{ - if ( x == this->x() && y == this->y() ) - return FALSE; - tqitemRect.setRect( x, y, tqitemRect.width(), tqitemRect.height() ); - checkRect(); - if ( view ) - view->updateItemContainer( this ); - return TRUE; -} - -/*! - Moves the item \a dx pixels in the x-direction and \a dy pixels in - the y-direction. -*/ - -void TQIconViewItem::moveBy( int dx, int dy ) -{ - tqitemRect.moveBy( dx, dy ); - checkRect(); - if ( view ) - view->updateItemContainer( this ); -} - -/*! - \overload - - Moves the item to the point \a pnt. -*/ - -bool TQIconViewItem::move( const TQPoint &pnt ) -{ - return move( pnt.x(), pnt.y() ); -} - -/*! - \overload - - Moves the item by the x, y values in point \a pnt. -*/ - -void TQIconViewItem::moveBy( const TQPoint &pnt ) -{ - moveBy( pnt.x(), pnt.y() ); -} - -/*! - Returns the bounding rectangle of the item (in contents - coordinates). -*/ - -TQRect TQIconViewItem::rect() const -{ - return tqitemRect; -} - -/*! - Returns the x-coordinate of the item (in contents coordinates). -*/ - -int TQIconViewItem::x() const -{ - return tqitemRect.x(); -} - -/*! - Returns the y-coordinate of the item (in contents coordinates). -*/ - -int TQIconViewItem::y() const -{ - return tqitemRect.y(); -} - -/*! - Returns the width of the item. -*/ - -int TQIconViewItem::width() const -{ - return TQMAX( tqitemRect.width(), TQApplication::globalStrut().width() ); -} - -/*! - Returns the height of the item. -*/ - -int TQIconViewItem::height() const -{ - return TQMAX( tqitemRect.height(), TQApplication::globalStrut().height() ); -} - -/*! - Returns the size of the item. -*/ - -TQSize TQIconViewItem::size() const -{ - return TQSize( tqitemRect.width(), tqitemRect.height() ); -} - -/*! - Returns the position of the item (in contents coordinates). -*/ - -TQPoint TQIconViewItem::pos() const -{ - return TQPoint( tqitemRect.x(), tqitemRect.y() ); -} - -/*! - Returns the bounding rectangle of the item's text. - - If \a relative is TRUE, (the default), the returned rectangle is - relative to the origin of the item's rectangle. If \a relative is - FALSE, the returned rectangle is relative to the origin of the - icon view's contents coordinate system. -*/ - -TQRect TQIconViewItem::textRect( bool relative ) const -{ - if ( relative ) - return itemTextRect; - else - return TQRect( x() + itemTextRect.x(), y() + itemTextRect.y(), itemTextRect.width(), itemTextRect.height() ); -} - -/*! - Returns the bounding rectangle of the item's icon. - - If \a relative is TRUE, (the default), the rectangle is relative to - the origin of the item's rectangle. If \a relative is FALSE, the - returned rectangle is relative to the origin of the icon view's - contents coordinate system. -*/ - -TQRect TQIconViewItem::pixmapRect( bool relative ) const -{ - if ( relative ) - return itemIconRect; - else - return TQRect( x() + itemIconRect.x(), y() + itemIconRect.y(), itemIconRect.width(), itemIconRect.height() ); -} - -/*! - Returns TRUE if the item contains the point \a pnt (in contents - coordinates); otherwise returns FALSE. -*/ - -bool TQIconViewItem::contains( const TQPoint& pnt ) const -{ - TQRect textArea = textRect( FALSE ); - TQRect pixmapArea = pixmapRect( FALSE ); - if ( iconView()->itemTextPos() == TQIconView::Bottom ) - textArea.setTop( pixmapArea.bottom() ); - else - textArea.setLeft( pixmapArea.right() ); - return textArea.contains( pnt ) || pixmapArea.contains( pnt ); -} - -/*! - Returns TRUE if the item intersects the rectangle \a r (in - contents coordinates); otherwise returns FALSE. -*/ - -bool TQIconViewItem::intersects( const TQRect& r ) const -{ - return ( textRect( FALSE ).intersects( r ) || - pixmapRect( FALSE ).intersects( r ) ); -} - -/*! - \fn bool TQIconViewItem::acceptDrop( const TQMimeSource *mime ) const - - Returns TRUE if you can drop things with a TQMimeSource of \a mime - onto this item; otherwise returns FALSE. - - The default implementation always returns FALSE. You must subclass - TQIconViewItem and reimplement acceptDrop() to accept drops. -*/ - -bool TQIconViewItem::acceptDrop( const TQMimeSource * ) const -{ - return FALSE; -} - -#ifndef TQT_NO_TEXTEDIT -/*! - Starts in-place renaming of an icon, if allowed. - - This function sets up the icon view so that the user can edit the - item text, and then returns. When the user is done, setText() will - be called and TQIconView::itemRenamed() will be emitted (unless the - user canceled, e.g. by pressing the Escape key). - - \sa setRenameEnabled() -*/ - -void TQIconViewItem::rename() -{ - if ( !view ) - return; - if ( renameBox ) - removeRenameBox(); - oldRect = rect(); - renameBox = new TQIconViewItemLineEdit( itemText, view->viewport(), this, "qt_renamebox" ); - iconView()->ensureItemVisible( this ); - TQRect tr( textRect( FALSE ) ); - view->addChild( renameBox, tr.x() + ( tr.width() / 2 - renameBox->width() / 2 ), tr.y() - 3 ); - renameBox->selectAll(); - view->viewport()->setFocusProxy( renameBox ); - renameBox->setFocus(); - renameBox->show(); - TQ_ASSERT( view->d->renamingItem == 0L ); - view->d->renamingItem = this; -} -#endif - -/*! - Compares this icon view item to \a i. Returns -1 if this item is - less than \a i, 0 if they are equal, and 1 if this icon view item - is greater than \a i. - - The default implementation compares the item keys (key()) using - TQString::localeAwareCompare(). A reimplementation may use - different values and a different comparison function. Here is a - reimplementation that uses plain Unicode comparison: - - \code - int MyIconViewItem::compare( TQIconViewItem *i ) const - { - return key().compare( i->key() ); - } - \endcode - - \sa key() TQString::localeAwareCompare() TQString::compare() -*/ - -int TQIconViewItem::compare( TQIconViewItem *i ) const -{ - return key().localeAwareCompare( i->key() ); -} - -#ifndef TQT_NO_TEXTEDIT -/*! - This private function is called when the user pressed Return during - in-place renaming. -*/ - -void TQIconViewItem::renameItem() -{ - if ( !renameBox || !view ) - return; - - if ( !view->d->wordWrapIconText ) { - wordWrapDirty = TRUE; - calcRect(); - } - TQRect r = tqitemRect; - setText( renameBox->text() ); - view->repaintContents( oldRect.x() - 1, oldRect.y() - 1, oldRect.width() + 2, oldRect.height() + 2, FALSE ); - view->repaintContents( r.x() - 1, r.y() - 1, r.width() + 2, r.height() + 2, FALSE ); - removeRenameBox(); - - view->emitRenamed( this ); -} - -/*! - Cancels in-place renaming. -*/ - -void TQIconViewItem::cancelRenameItem() -{ - if ( !view ) - return; - - TQRect r = tqitemRect; - calcRect(); - view->repaintContents( oldRect.x() - 1, oldRect.y() - 1, oldRect.width() + 2, oldRect.height() + 2, FALSE ); - view->repaintContents( r.x() - 1, r.y() - 1, r.width() + 2, r.height() + 2, FALSE ); - - if ( !renameBox ) - return; - - removeRenameBox(); -} - -/*! - Removes the editbox that is used for in-place renaming. -*/ - -void TQIconViewItem::removeRenameBox() -{ - if ( !renameBox || !view ) - return; - - bool resetFocus = view->viewport()->focusProxy() == renameBox; - renameBox->hide(); - renameBox->deleteLater(); - renameBox = 0; - if ( resetFocus ) { - view->viewport()->setFocusProxy( view ); - view->setFocus(); - } - TQ_ASSERT( view->d->renamingItem == this ); - view->d->renamingItem = 0L; -} -#endif - -/*! - This virtual function is responsible for calculating the - rectangles returned by rect(), textRect() and pixmapRect(). - setRect(), setTextRect() and setPixmapRect() are provided mainly - for reimplementations of this function. - - \a text_ is an internal parameter which defaults to TQString::null. -*/ - -void TQIconViewItem::calcRect( const TQString &text_ ) -{ - if ( !view ) // ##### - return; - - wordWrapDirty = TRUE; - int pw = 0; - int ph = 0; - -#ifndef TQT_NO_PICTURE - if ( picture() ) { - TQRect br = picture()->boundingRect(); - pw = br.width() + 2; - ph = br.height() + 2; - } else -#endif - { - pw = ( pixmap() ? pixmap() : unknown_icon )->width() + 2; - ph = ( pixmap() ? pixmap() : unknown_icon )->height() + 2; - } - - itemIconRect.setWidth( pw ); - itemIconRect.setHeight( ph ); - - calcTmpText(); - - TQString t = text_; - if ( t.isEmpty() ) { - if ( view->d->wordWrapIconText ) - t = itemText; - else - t = tmpText; - } - - int tw = 0; - int th = 0; - // ##### TODO: fix font bearings! - TQRect r; - if ( view->d->wordWrapIconText ) { - r = TQRect( view->d->fm->boundingRect( 0, 0, iconView()->maxItemWidth() - - ( iconView()->itemTextPos() == TQIconView::Bottom ? 0 : - pixmapRect().width() ), - 0xFFFFFFFF, AlignHCenter | WordBreak | BreakAnywhere, t ) ); - r.setWidth( r.width() + 4 ); - } else { - r = TQRect( 0, 0, view->d->fm->width( t ), view->d->fm->height() ); - r.setWidth( r.width() + 4 ); - } - - if ( r.width() > iconView()->maxItemWidth() - - ( iconView()->itemTextPos() == TQIconView::Bottom ? 0 : - pixmapRect().width() ) ) - r.setWidth( iconView()->maxItemWidth() - ( iconView()->itemTextPos() == TQIconView::Bottom ? 0 : - pixmapRect().width() ) ); - - tw = r.width(); - th = r.height(); - if ( tw < view->d->fm->width( "X" ) ) - tw = view->d->fm->width( "X" ); - - itemTextRect.setWidth( tw ); - itemTextRect.setHeight( th ); - - int w = 0; - int h = 0; - if ( view->itemTextPos() == TQIconView::Bottom ) { - w = TQMAX( itemTextRect.width(), itemIconRect.width() ); - h = itemTextRect.height() + itemIconRect.height() + 1; - - tqitemRect.setWidth( w ); - tqitemRect.setHeight( h ); - - itemTextRect = TQRect( ( width() - itemTextRect.width() ) / 2, height() - itemTextRect.height(), - itemTextRect.width(), itemTextRect.height() ); - itemIconRect = TQRect( ( width() - itemIconRect.width() ) / 2, 0, - itemIconRect.width(), itemIconRect.height() ); - } else { - h = TQMAX( itemTextRect.height(), itemIconRect.height() ); - w = itemTextRect.width() + itemIconRect.width() + 1; - - tqitemRect.setWidth( w ); - tqitemRect.setHeight( h ); - - itemTextRect = TQRect( width() - itemTextRect.width(), ( height() - itemTextRect.height() ) / 2, - itemTextRect.width(), itemTextRect.height() ); - itemIconRect = TQRect( 0, ( height() - itemIconRect.height() ) / 2, - itemIconRect.width(), itemIconRect.height() ); - } - if ( view ) - view->updateItemContainer( this ); -} - -/*! - Paints the item using the painter \a p and the color group \a cg. - If you want the item to be drawn with a different font or color, - reimplement this function, change the values of the color group or - the painter's font, and then call the TQIconViewItem::paintItem() - with the changed values. -*/ - -void TQIconViewItem::paintItem( TQPainter *p, const TQColorGroup &cg ) -{ - if ( !view ) - return; - - p->save(); - - if ( isSelected() ) { - p->setPen( cg.highlightedText() ); - } else { - p->setPen( cg.text() ); - } - - calcTmpText(); - -#ifndef TQT_NO_PICTURE - if ( picture() ) { - TQPicture *pic = picture(); - if ( isSelected() ) { - p->setBrush( TQBrush( cg.highlight(), TQBrush::Dense4Pattern ) ); - p->setPen( TQPen( cg.highlight(), TQBrush::Dense4Pattern ) ); - p->drawRoundRect( pixmapRect( FALSE ), - 1000 / pixmapRect( FALSE ).width(), - 1000 / pixmapRect( FALSE ).height() ); - } - p->drawPicture( x()-pic->boundingRect().x(), y()-pic->boundingRect().y(), *pic ); - if ( isSelected() ) { - p->setBrush( TQBrush( cg.highlight() ) ); - p->setPen( TQPen( cg.highlight() ) ); - p->drawRoundRect( textRect( FALSE ), - 1000 / textRect( FALSE ).width(), - 1000 / textRect( FALSE ).height() ); - p->setPen( TQPen( cg.highlightedText() ) ); - } else if ( view->d->itemTextBrush != Qt::NoBrush ) { - p->setBrush( view->d->itemTextBrush ); - p->setPen( TQPen( view->d->itemTextBrush.color() ) ); - p->drawRoundRect( textRect( FALSE ), - 1000 / textRect( FALSE ).width(), - 1000 / textRect( FALSE ).height() ); - } - - int align = view->itemTextPos() == TQIconView::Bottom ? AlignHCenter : AlignAuto; - if ( view->d->wordWrapIconText ) - align |= WordBreak | BreakAnywhere; - p->drawText( textRect( FALSE ), align, view->d->wordWrapIconText ? itemText : tmpText ); - p->restore(); - return; - } -#endif - bool textOnBottom = ( view->itemTextPos() == TQIconView::Bottom ); - int dim; - if ( textOnBottom ) - dim = ( pixmap() ? pixmap() : unknown_icon)->width(); - else - dim = ( pixmap() ? pixmap() : unknown_icon)->height(); - if ( isSelected() ) { - TQPixmap *pix = pixmap() ? pixmap() : unknown_icon; - if ( pix && !pix->isNull() ) { - TQPixmap *buffer = get_qiv_buffer_pixmap( pix->size() ); - TQBitmap mask = view->mask( pix ); - - TQPainter p2( buffer ); - p2.fillRect( pix->rect(), white ); - p2.drawPixmap( 0, 0, *pix ); - p2.end(); - buffer->setMask( mask ); - p2.begin( buffer ); -#if defined(TQ_WS_X11) - p2.fillRect( pix->rect(), TQBrush( cg.highlight(), Qt::Dense4Pattern) ); -#else // in WIN32 Dense4Pattern doesn't work correctly (transparency problem), so work around it - if ( iconView()->d->drawActiveSelection ) { - if ( !qiv_selection ) - createSelectionPixmap( cg ); - p2.drawTiledPixmap( 0, 0, pix->width(), pix->height(), - *qiv_selection ); - } -#endif - p2.end(); - TQRect cr = pix->rect(); - if ( textOnBottom ) - p->drawPixmap( x() + ( width() - dim ) / 2, y(), *buffer, 0, 0, - cr.width(), cr.height() ); - else - p->drawPixmap( x() , y() + ( height() - dim ) / 2, *buffer, 0, 0, - cr.width(), cr.height() ); - } - } else { - if ( textOnBottom ) - p->drawPixmap( x() + ( width() - dim ) / 2, y(), - *( pixmap() ? pixmap() : unknown_icon ) ); - else - p->drawPixmap( x() , y() + ( height() - dim ) / 2, - *( pixmap() ? pixmap() : unknown_icon ) ); - } - - p->save(); - if ( isSelected() ) { - p->setBrush( TQBrush( cg.highlight() ) ); - p->setPen( TQPen( cg.highlight() ) ); - p->drawRoundRect( textRect( FALSE ), - 1000 / textRect( FALSE ).width(), - 1000 / textRect( FALSE ).height() ); - p->setPen( TQPen( cg.highlightedText() ) ); - } else if ( view->d->itemTextBrush != Qt::NoBrush ) { - p->setBrush( view->d->itemTextBrush ); - p->setPen( TQPen( view->d->itemTextBrush.color() ) ); - p->drawRoundRect( textRect( FALSE ), - 1000 / textRect( FALSE ).width(), - 1000 / textRect( FALSE ).height() ); - } - - int align = AlignHCenter; - if ( view->d->wordWrapIconText ) - align |= WordBreak | BreakAnywhere; - p->drawText( textRect( FALSE ), align, - view->d->wordWrapIconText ? itemText : tmpText ); - - p->restore(); - - p->restore(); -} - -/*! - Paints the focus rectangle of the item using the painter \a p and - the color group \a cg. - - The default implementation does nothing; subclasses may - reimplement this function. -*/ - -void TQIconViewItem::paintFocus( TQPainter *p, const TQColorGroup & ) -{ - -} - -/*! - \fn void TQIconViewItem::dropped( TQDropEvent *e, const TQValueList<TQIconDragItem> &lst ) - - This function is called when something is dropped on the item. \a - e provides all the information about the drop. If the drag object - of the drop was a TQIconDrag, \a lst contains the list of the - dropped items. You can get the data by calling - TQIconDragItem::data() on each item. If the \a lst is empty, i.e. - the drag was not a TQIconDrag, you must decode the data in \a e and - work with that. - - The default implementation does nothing; subclasses may - reimplement this function. -*/ - -#ifndef TQT_NO_DRAGANDDROP -void TQIconViewItem::dropped( TQDropEvent *, const TQValueList<TQIconDragItem> & ) -{ -} -#endif - -/*! - This function is called when a drag enters the item's bounding - rectangle. - - The default implementation does nothing; subclasses may - reimplement this function. -*/ - -void TQIconViewItem::dragEntered() -{ -} - -/*! - This function is called when a drag leaves the item's bounding - rectangle. - - The default implementation does nothing; subclasses may - reimplement this function. -*/ - -void TQIconViewItem::dragLeft() -{ -} - -/*! - Sets the bounding rectangle of the whole item to \a r. This - function is provided for subclasses which reimplement calcRect(), - so that they can set the calculated rectangle. \e{Any other use is - discouraged.} - - \sa calcRect() textRect() setTextRect() pixmapRect() setPixmapRect() -*/ - -void TQIconViewItem::setItemRect( const TQRect &r ) -{ - tqitemRect = r; - checkRect(); - if ( view ) - view->updateItemContainer( this ); -} - -/*! - Sets the bounding rectangle of the item's text to \a r. This - function is provided for subclasses which reimplement calcRect(), - so that they can set the calculated rectangle. \e{Any other use is - discouraged.} - - \sa calcRect() textRect() setItemRect() setPixmapRect() -*/ - -void TQIconViewItem::setTextRect( const TQRect &r ) -{ - itemTextRect = r; - if ( view ) - view->updateItemContainer( this ); -} - -/*! - Sets the bounding rectangle of the item's icon to \a r. This - function is provided for subclasses which reimplement calcRect(), - so that they can set the calculated rectangle. \e{Any other use is - discouraged.} - - \sa calcRect() pixmapRect() setItemRect() setTextRect() -*/ - -void TQIconViewItem::setPixmapRect( const TQRect &r ) -{ - itemIconRect = r; - if ( view ) - view->updateItemContainer( this ); -} - -/*! - \internal -*/ - -void TQIconViewItem::calcTmpText() -{ - if ( !view || view->d->wordWrapIconText || !wordWrapDirty ) - return; - wordWrapDirty = FALSE; - - int w = iconView()->maxItemWidth() - ( iconView()->itemTextPos() == TQIconView::Bottom ? 0 : - pixmapRect().width() ); - if ( view->d->fm->width( itemText ) < w ) { - tmpText = itemText; - return; - } - - tmpText = "..."; - int i = 0; - while ( view->d->fm->width( tmpText + itemText[ i ] ) < w ) - tmpText += itemText[ i++ ]; - tmpText.remove( (uint)0, 3 ); - tmpText += "..."; -} - -/*! \internal */ - -TQString TQIconViewItem::tempText() const -{ - return tmpText; -} - -void TQIconViewItem::checkRect() -{ - int x = tqitemRect.x(); - int y = tqitemRect.y(); - int w = tqitemRect.width(); - int h = tqitemRect.height(); - - bool changed = FALSE; - if ( x < 0 ) { - x = 0; - changed = TRUE; - } - if ( y < 0 ) { - y = 0; - changed = TRUE; - } - - if ( changed ) - tqitemRect.setRect( x, y, w, h ); -} - - -/*! \file iconview/simple_dd/main.h */ -/*! \file iconview/simple_dd/main.cpp */ - - -/*! - \class TQIconView tqiconview.h - \brief The TQIconView class provides an area with movable labelled icons. - - \module iconview - \ingroup advanced - \mainclass - - A TQIconView can display and manage a grid or other 2D tqlayout of - labelled icons. Each labelled icon is a TQIconViewItem. Items - (TQIconViewItems) can be added or deleted at any time; items can be - moved within the TQIconView. Single or multiple items can be - selected. Items can be renamed in-place. TQIconView also supports - \link #draganddrop drag and drop\endlink. - - Each item contains a label string, a pixmap or picture (the icon - itself) and optionally a sort key. The sort key is used for - sorting the items and defaults to the label string. The label - string can be displayed below or to the right of the icon (see \l - ItemTextPos). - - The simplest way to create a TQIconView is to create a TQIconView - object and create some TQIconViewItems with the TQIconView as their - parent, set the icon view's tqgeometry and show it. - For example: - \code - TQIconView *iv = new TQIconView( this ); - TQDir dir( path, "*.xpm" ); - for ( uint i = 0; i < dir.count(); i++ ) { - (void) new TQIconViewItem( iv, dir[i], TQPixmap( path + dir[i] ) ); - } - iv->resize( 600, 400 ); - iv->show(); - \endcode - - The TQIconViewItem call passes a pointer to the TQIconView we wish to - populate, along with the label text and a TQPixmap. - - When an item is inserted the TQIconView allocates a position for it. - Existing items are rearranged if autoArrange() is TRUE. The - default arrangement is \c LeftToRight -- the TQIconView fills up - the \e left-most column from top to bottom, then moves one column - \e right and fills that from top to bottom and so on. The - arrangement can be modified with any of the following approaches: - \list - \i Call setArrangement(), e.g. with \c TopToBottom which will fill - the \e top-most row from left to right, then moves one row \e down - and fills that row from left to right and so on. - \i Construct each TQIconViewItem using a constructor which allows - you to specify which item the new one is to follow. - \i Call setSorting() or sort() to sort the items. - \endlist - - The spacing between items is set with setSpacing(). Items can be - laid out using a fixed grid using setGridX() and setGridY(); by - default the TQIconView calculates a grid dynamically. The position - of items' label text is set with setItemTextPos(). The text's - background can be set with setItemTextBackground(). The maximum - width of an item and of its text are set with setMaxItemWidth() - and setMaxItemTextLength(). The label text will be word-wrapped if - it is too long; this is controlled by setWordWrapIconText(). If - the label text is truncated, the user can still see the entire - text in a tool tip if they hover the mouse over the item. This is - controlled with setShowToolTips(). - - Items which are \link TQIconViewItem::isSelectable() - selectable\endlink may be selected depending on the SelectionMode; - the default is \c Single. Because TQIconView offers multiple - selection it must display keyboard focus and selection state - separately. Therefore there are functions to set the selection - state of an item (setSelected()) and to select which item displays - keyboard focus (setCurrentItem()). When multiple items may be - selected the icon view provides a rubberband, too. - - When in-place renaming is enabled (it is disabled by default), the - user may change the item's label. They do this by selecting the item - (single clicking it or navigating to it with the arrow keys), then - single clicking it (or pressing F2), and entering their text. If no - key has been set with TQIconViewItem::setKey() the new text will also - serve as the key. (See TQIconViewItem::setRenameEnabled().) - - You can control whether users can move items themselves with - setItemsMovable(). - - Because the internal structure used to store the icon view items is - linear, no iterator class is needed to iterate over all the items. - Instead we iterate by getting the first item from the \e{icon view} - and then each subsequent (\l TQIconViewItem::nextItem()) from each - \e item in turn: - \code - for ( TQIconViewItem *item = iv->firstItem(); item; item = item->nextItem() ) - do_something( item ); - \endcode - TQIconView also provides currentItem(). You can search for an item - using findItem() (searching by position or for label text) and - with findFirstVisibleItem() and findLastVisibleItem(). The number - of items is returned by count(). An item can be removed from an - icon view using takeItem(); to delete an item use \c delete. All - the items can be deleted with clear(). - - The TQIconView emits a wide range of useful Q_SIGNALS, including - selectionChanged(), currentChanged(), clicked(), moved() and - itemRenamed(). - - \target draganddrop - \section1 Drag and Drop - - TQIconView supports the drag and drop of items within the TQIconView - itself. It also supports the drag and drop of items out of or into - the TQIconView and drag and drop onto items themselves. The drag and - drop of items outside the TQIconView can be achieved in a simple way - with basic functionality, or in a more sophisticated way which - provides more power and control. - - The simple approach to dragging items out of the icon view is to - subclass TQIconView and reimplement TQIconView::dragObject(). - - \code - TQDragObject *MyIconView::dragObject() - { - return new TQTextDrag( currentItem()->text(), this ); - } - \endcode - - In this example we create a TQTextDrag object, (derived from - TQDragObject), containing the item's label and return it as the drag - object. We could just as easily have created a TQImageDrag from the - item's pixmap and returned that instead. - - TQIconViews and their TQIconViewItems can also be the targets of drag - and drops. To make the TQIconView itself able to accept drops connect - to the dropped() signal. When a drop occurs this signal will be - emitted with a TQDragEvent and a TQValueList of TQIconDragItems. To - make a TQIconViewItem into a drop target subclass TQIconViewItem and - reimplement TQIconViewItem::acceptDrop() and - TQIconViewItem::dropped(). - - \code - bool MyIconViewItem::acceptDrop( const TQMimeSource *mime ) const - { - if ( mime->provides( "text/plain" ) ) - return TRUE; - return FALSE; - } - - void MyIconViewItem::dropped( TQDropEvent *evt, const TQValueList<TQIconDragItem>& ) - { - TQString label; - if ( TQTextDrag::decode( evt, label ) ) - setText( label ); - } - \endcode - - See \l iconview/simple_dd/main.h and \l - iconview/simple_dd/main.cpp for a simple drag and drop example - which demonstrates drag and drop between a TQIconView and a - TQListBox. - - If you want to use extended drag-and-drop or have drag tqshapes drawn - you must take a more sophisticated approach. - - The first part is starting drags -- you should use a TQIconDrag (or a - class derived from it) for the drag object. In dragObject() create the - drag object, populate it with TQIconDragItems and return it. Normally - such a drag should offer each selected item's data. So in dragObject() - you should iterate over all the items, and create a TQIconDragItem for - each selected item, and append these items with TQIconDrag::append() to - the TQIconDrag object. You can use TQIconDragItem::setData() to set the - data of each item that should be dragged. If you want to offer the - data in additional mime-types, it's best to use a class derived from - TQIconDrag, which implements additional encoding and decoding - functions. - - When a drag enters the icon view, there is little to do. Simply - connect to the dropped() signal and reimplement - TQIconViewItem::acceptDrop() and TQIconViewItem::dropped(). If you've - used a TQIconDrag (or a subclass of it) the second argument to the - dropped signal contains a TQValueList of TQIconDragItems -- you can - access their data by calling TQIconDragItem::data() on each one. - - For an example implementation of complex drag-and-drop look at the - fileiconview example (qt/examples/fileiconview). - - \sa TQIconViewItem::setDragEnabled(), TQIconViewItem::setDropEnabled(), - TQIconViewItem::acceptDrop(), TQIconViewItem::dropped(). - - <img src=qiconview-m.png> <img src=qiconview-w.png> -*/ - -/*! \enum TQIconView::ResizeMode - - This enum type is used to tell TQIconView how it should treat the - positions of its icons when the widget is resized. The modes are: - - \value Fixed The icons' positions are not changed. - \value Adjust The icons' positions are adjusted to be within the - new tqgeometry, if possible. -*/ - -/*! - \enum TQIconView::SelectionMode - - This enumerated type is used by TQIconView to indicate how it - reacts to selection by the user. It has four values: - - \value Single When the user selects an item, any already-selected - item becomes unselected and the user cannot unselect the selected - item. This means that the user can never clear the selection. (The - application programmer can, using TQIconView::clearSelection().) - - \value Multi When the user selects an item, e.g. by navigating - to it with the keyboard arrow keys or by clicking it, the - selection status of that item is toggled and the other items are - left alone. Also, multiple items can be selected by dragging the - mouse while the left mouse button stays pressed. - - \value Extended When the user selects an item the selection is - cleared and the new item selected. However, if the user presses - the Ctrl key when clicking on an item, the clicked item gets - toggled and all other items are left untouched. If the user - presses the Shift key while clicking on an item, all items between - the current item and the clicked item get selected or unselected, - depending on the state of the clicked item. Also, multiple items - can be selected by dragging the mouse while the left mouse button - stays pressed. - - \value NoSelection Items cannot be selected. - - To summarise: \c Single is a real single-selection icon view; \c - Multi a real multi-selection icon view; \c Extended is an icon - view in which users can select multiple items but usually want to - select either just one or a range of contiguous items; and \c - NoSelection mode is for an icon view where the user can look but - not touch. -*/ - -/*! - \enum TQIconView::Arrangement - - This enum type determines in which direction the items flow when - the view runs out of space. - - \value LeftToRight Items which don't fit into the view cause the - viewport to extend vertically (you get a vertical scrollbar). - - \value TopToBottom Items which don't fit into the view cause the - viewport to extend horizontally (you get a horizontal scrollbar). -*/ - -/*! - \enum TQIconView::ItemTextPos - - This enum type specifies the position of the item text in relation - to the icon. - - \value Bottom The text is drawn below the icon. - \value Right The text is drawn to the right of the icon. -*/ - -/*! - \fn void TQIconView::dropped ( TQDropEvent * e, const TQValueList<TQIconDragItem> &lst ) - - This signal is emitted when a drop event occurs in the viewport - (but not on any icon) which the icon view itself can't handle. - - \a e provides all the information about the drop. If the drag - object of the drop was a TQIconDrag, \a lst contains the list of - the dropped items. You can get the data using - TQIconDragItem::data() on each item. If the \a lst is empty, i.e. - the drag was not a TQIconDrag, you have to decode the data in \a e - and work with that. - - Note TQIconViewItems may be drop targets; if a drop event occurs on - an item the item handles the drop. -*/ - -/*! - \fn void TQIconView::moved() - - This signal is emitted after successfully dropping one (or more) - items of the icon view. If the items should be removed, it's best - to do so in a slot connected to this signal. -*/ - -/*! - \fn void TQIconView::doubleClicked(TQIconViewItem * item) - - This signal is emitted when the user double-clicks on \a item. -*/ - -/*! - \fn void TQIconView::returnPressed (TQIconViewItem * item) - - This signal is emitted if the user presses the Return or Enter - key. \a item is the currentItem() at the time of the keypress. -*/ - -/*! - \fn void TQIconView::selectionChanged() - - This signal is emitted when the selection has been changed. It's - emitted in each selection mode. -*/ - -/*! - \overload void TQIconView::selectionChanged( TQIconViewItem *item ) - - This signal is emitted when the selection changes. \a item is the - newly selected item. This signal is emitted only in single - selection mode. -*/ - -/*! - \fn void TQIconView::currentChanged( TQIconViewItem *item ) - - This signal is emitted when a new item becomes current. \a item is - the new current item (or 0 if no item is now current). - - \sa currentItem() -*/ - -/*! - \fn void TQIconView::onItem( TQIconViewItem *item ) - - This signal is emitted when the user moves the mouse cursor onto - an \a item, similar to the TQWidget::enterEvent() function. -*/ - -// ### bug here - enter/leave event aren't considered. move the mouse -// out of the window and back in, to the same item. - -/*! - \fn void TQIconView::onViewport() - - This signal is emitted when the user moves the mouse cursor from - an item to an empty part of the icon view. - - \sa onItem() -*/ - -/*! - \overload void TQIconView::itemRenamed (TQIconViewItem * item) - - This signal is emitted when \a item has been renamed, usually by - in-place renaming. - - \sa TQIconViewItem::setRenameEnabled() TQIconViewItem::rename() -*/ - -/*! - \fn void TQIconView::itemRenamed (TQIconViewItem * item, const TQString &name) - - This signal is emitted when \a item has been renamed to \a name, - usually by in-place renaming. - - \sa TQIconViewItem::setRenameEnabled() TQIconViewItem::rename() -*/ - -/*! - \fn void TQIconView::rightButtonClicked (TQIconViewItem * item, const TQPoint & pos) - - This signal is emitted when the user clicks the right mouse - button. If \a item is non-null, the cursor is on \a item. If \a - item is null, the mouse cursor isn't on any item. - - \a pos is the position of the mouse cursor in the global - coordinate system (TQMouseEvent::globalPos()). (If the click's - press and release differ by a pixel or two, \a pos is the - position at release time.) - - \sa rightButtonPressed() mouseButtonClicked() clicked() -*/ - -/*! - \fn void TQIconView::contextMenuRequested( TQIconViewItem *item, const TQPoint & pos ) - - This signal is emitted when the user invokes a context menu with - the right mouse button or with special system keys, with \a item - being the item under the mouse cursor or the current item, - respectively. - - \a pos is the position for the context menu in the global - coordinate system. -*/ - -/*! - \fn void TQIconView::mouseButtonPressed (int button, TQIconViewItem * item, const TQPoint & pos) - - This signal is emitted when the user presses mouse button \a - button. If \a item is non-null, the cursor is on \a item. If \a - item is null, the mouse cursor isn't on any item. - - \a pos is the position of the mouse cursor in the global - coordinate system (TQMouseEvent::globalPos()). - - \sa rightButtonClicked() mouseButtonPressed() pressed() -*/ - -/*! - \fn void TQIconView::mouseButtonClicked (int button, TQIconViewItem * item, const TQPoint & pos ) - - This signal is emitted when the user clicks mouse button \a - button. If \a item is non-null, the cursor is on \a item. If \a - item is null, the mouse cursor isn't on any item. - - \a pos is the position of the mouse cursor in the global - coordinate system (TQMouseEvent::globalPos()). (If the click's - press and release differ by a pixel or two, \a pos is the - position at release time.) - - \sa mouseButtonPressed() rightButtonClicked() clicked() -*/ - -/*! - \overload void TQIconView::clicked ( TQIconViewItem * item, const TQPoint & pos ) - - This signal is emitted when the user clicks any mouse button on an - icon view item. \a item is a pointer to the item that has been - clicked. - - \a pos is the position of the mouse cursor in the global coordinate - system (TQMouseEvent::globalPos()). (If the click's press and release - differ by a pixel or two, \a pos is the position at release time.) - - \sa mouseButtonClicked() rightButtonClicked() pressed() -*/ - -/*! - \overload void TQIconView::pressed ( TQIconViewItem * item, const TQPoint & pos ) - - This signal is emitted when the user presses any mouse button. If - \a item is non-null, the cursor is on \a item. If \a item is null, - the mouse cursor isn't on any item. - - \a pos is the position of the mouse cursor in the global - coordinate system (TQMouseEvent::globalPos()). (If the click's - press and release differ by a pixel or two, \a pos is the - position at release time.) - - \sa mouseButtonPressed() rightButtonPressed() clicked() -*/ - -/*! - \fn void TQIconView::clicked ( TQIconViewItem * item ) - - This signal is emitted when the user clicks any mouse button. If - \a item is non-null, the cursor is on \a item. If \a item is null, - the mouse cursor isn't on any item. - - \sa mouseButtonClicked() rightButtonClicked() pressed() -*/ - -/*! - \fn void TQIconView::pressed ( TQIconViewItem * item ) - - This signal is emitted when the user presses any mouse button. If - \a item is non-null, the cursor is on \a item. If \a item is null, - the mouse cursor isn't on any item. - - \sa mouseButtonPressed() rightButtonPressed() clicked() -*/ - -/*! - \fn void TQIconView::rightButtonPressed( TQIconViewItem * item, const TQPoint & pos ) - - This signal is emitted when the user presses the right mouse - button. If \a item is non-null, the cursor is on \a item. If \a - item is null, the mouse cursor isn't on any item. - - \a pos is the position of the mouse cursor in the global - coordinate system (TQMouseEvent::globalPos()). -*/ - -/*! - Constructs an empty icon view called \a name, with parent \a - parent and using the widget flags \a f. -*/ - -TQIconView::TQIconView( TQWidget *parent, const char *name, WFlags f ) - : TQScrollView( parent, name, (WFlags)(TQt::WStaticContents | TQt::WNoAutoErase | f) ) -{ - if ( !unknown_icon ) { - unknown_icon = new TQPixmap( (const char **)unknown_xpm ); - qiv_cleanup_pixmap.add( &unknown_icon ); - } - - d = new TQIconViewPrivate; - d->dragging = FALSE; - d->firstItem = 0; - d->lastItem = 0; - d->count = 0; - d->mousePressed = FALSE; - d->selectionMode = Single; - d->currentItem = 0; - d->highlightedItem = 0; - d->rubber = 0; - d->scrollTimer = 0; - d->startDragItem = 0; - d->tmpCurrentItem = 0; - d->rastX = d->rastY = -1; - d->spacing = 5; - d->cleared = FALSE; - d->arrangement = LeftToRight; - d->resizeMode = Fixed; - d->dropped = FALSE; - d->adjustTimer = new TQTimer( this, "iconview adjust timer" ); - d->isIconDrag = FALSE; - d->inMenuMode = FALSE; -#ifndef TQT_NO_DRAGANDDROP - d->iconDragData.clear(); -#endif - d->numDragItems = 0; - d->updateTimer = new TQTimer( this, "iconview update timer" ); - d->cachedW = d->cachedH = 0; - d->maxItemWidth = 100; - d->maxItemTextLength = 255; - d->inputTimer = new TQTimer( this, "iconview input timer" ); - d->currInputString = TQString::null; - d->dirty = FALSE; - d->rearrangeEnabled = TRUE; - d->itemTextPos = Bottom; - d->reorderItemsWhenInsert = TRUE; -#ifndef TQT_NO_CURSOR - d->oldCursor = Qt::ArrowCursor; -#endif - d->resortItemsWhenInsert = FALSE; - d->sortDirection = TRUE; - d->wordWrapIconText = TRUE; - d->cachedContentsX = d->cachedContentsY = -1; - d->clearing = FALSE; - d->fullRedrawTimer = new TQTimer( this, "iconview full redraw timer" ); - d->itemTextBrush = TQBrush(Qt::NoBrush); - d->drawAllBack = TRUE; - d->fm = new TQFontMetrics( font() ); - d->minLeftBearing = d->fm->minLeftBearing(); - d->minRightBearing = d->fm->minRightBearing(); - d->firstContainer = d->lastContainer = 0; - d->containerUpdateLocked = FALSE; - d->firstSizeHint = FALSE; - d->selectAnchor = 0; - d->renamingItem = 0; - d->drawActiveSelection = TRUE; - d->drawDragShapes = FALSE; - d->backrubber = 0; - - connect( d->adjustTimer, TQT_SIGNAL( timeout() ), - this, TQT_SLOT( adjustItems() ) ); - connect( d->updateTimer, TQT_SIGNAL( timeout() ), - this, TQT_SLOT( slotUpdate() ) ); - connect( d->fullRedrawTimer, TQT_SIGNAL( timeout() ), - this, TQT_SLOT( updateContents() ) ); - connect( this, TQT_SIGNAL( contentsMoving(int,int) ), - this, TQT_SLOT( movedContents(int,int) ) ); - - setAcceptDrops( TRUE ); - viewport()->setAcceptDrops( TRUE ); - - setMouseTracking( TRUE ); - viewport()->setMouseTracking( TRUE ); - - viewport()->setBackgroundMode( TQt::PaletteBase); - setBackgroundMode( TQt::PaletteBackground, TQt::PaletteBase ); - viewport()->setFocusProxy( this ); - viewport()->setFocusPolicy( Qt::WheelFocus ); - -#ifndef TQT_NO_TOOLTIP - d->toolTip = new TQIconViewToolTip( viewport(), this ); -#endif - d->showTips = TRUE; -} - -/*! - \reimp -*/ - -void TQIconView::styleChange( TQStyle& old ) -{ - TQScrollView::styleChange( old ); - *d->fm = TQFontMetrics( font() ); - d->minLeftBearing = d->fm->minLeftBearing(); - d->minRightBearing = d->fm->minRightBearing(); - - TQIconViewItem *item = d->firstItem; - for ( ; item; item = item->next ) { - item->wordWrapDirty = TRUE; - item->calcRect(); - } - -#if !defined(TQ_WS_X11) - delete qiv_selection; - qiv_selection = 0; -#endif -} - -/*! - \reimp -*/ - -void TQIconView::setFont( const TQFont & f ) -{ - TQScrollView::setFont( f ); - *d->fm = TQFontMetrics( font() ); - d->minLeftBearing = d->fm->minLeftBearing(); - d->minRightBearing = d->fm->minRightBearing(); - - TQIconViewItem *item = d->firstItem; - for ( ; item; item = item->next ) { - item->wordWrapDirty = TRUE; - item->calcRect(); - } -} - -/*! - \reimp -*/ - -void TQIconView::setPalette( const TQPalette & p ) -{ - TQScrollView::setPalette( p ); - *d->fm = TQFontMetrics( font() ); - d->minLeftBearing = d->fm->minLeftBearing(); - d->minRightBearing = d->fm->minRightBearing(); - - TQIconViewItem *item = d->firstItem; - for ( ; item; item = item->next ) { - item->wordWrapDirty = TRUE; - item->calcRect(); - } -} - -/*! - Destroys the icon view and deletes all items. -*/ - -TQIconView::~TQIconView() -{ - TQIconViewItem *tmp, *item = d->firstItem; - d->clearing = TRUE; - TQIconViewPrivate::ItemContainer *c = d->firstContainer, *tmpc; - while ( c ) { - tmpc = c->n; - delete c; - c = tmpc; - } - while ( item ) { - tmp = item->next; - delete item; - item = tmp; - } - delete d->fm; - d->fm = 0; -#ifndef TQT_NO_TOOLTIP - delete d->toolTip; - d->toolTip = 0; -#endif - delete d; -} - -/*! - Inserts the icon view item \a item after \a after. If \a after is - 0, \a item is appended after the last item. - - \e{You should never need to call this function.} Instead create - TQIconViewItem's and associate them with your icon view like this: - - \code - (void) new TQIconViewItem( myIconview, "The text of the item", aPixmap ); - \endcode -*/ - -void TQIconView::insertItem( TQIconViewItem *item, TQIconViewItem *after ) -{ - if ( !item ) - return; - - if ( d->firstItem == item || item->prev || item->next) - return; - - if ( !item->view ) - item->view = this; - - if ( !d->firstItem ) { - d->firstItem = d->lastItem = item; - item->prev = 0; - item->next = 0; - } else { - if ( !after || after == d->lastItem ) { - d->lastItem->next = item; - item->prev = d->lastItem; - item->next = 0; - d->lastItem = item; - } else { - TQIconViewItem *i = d->firstItem; - while ( i != after ) - i = i->next; - - if ( i ) { - TQIconViewItem *next = i->next; - item->next = next; - item->prev = i; - i->next = item; - next->prev = item; - } - } - } - - if ( isVisible() ) { - if ( d->reorderItemsWhenInsert ) { - if ( d->updateTimer->isActive() ) - d->updateTimer->stop(); - d->fullRedrawTimer->stop(); - // #### uncomment this ASA insertInGrid uses cached values and is efficient - //insertInGrid( item ); - - d->cachedW = TQMAX( d->cachedW, item->x() + item->width() ); - d->cachedH= TQMAX( d->cachedH, item->y() + item->height() ); - - d->updateTimer->start( 0, TRUE ); - } else { - insertInGrid( item ); - - viewport()->update(item->x() - contentsX(), - item->y() - contentsY(), - item->width(), item->height()); - } - } else if ( !autoArrange() ) { - item->dirty = FALSE; - } - - d->count++; - d->dirty = TRUE; -} - -/*! - This slot is used for a slightly-delayed update. - - The icon view is not redrawn immediately after inserting a new item - but after a very small delay using a TQTimer. This means that when - many items are inserted in a loop the icon view is probably redrawn - only once at the end of the loop. This makes the insertions both - flicker-free and faster. -*/ - -void TQIconView::slotUpdate() -{ - d->updateTimer->stop(); - d->fullRedrawTimer->stop(); - - if ( !d->firstItem || !d->lastItem ) - return; - - // #### remove that ASA insertInGrid uses cached values and is efficient - if ( d->resortItemsWhenInsert ) - sort( d->sortDirection ); - else { - int y = d->spacing; - TQIconViewItem *item = d->firstItem; - int w = 0, h = 0; - while ( item ) { - bool changed; - TQIconViewItem *next = makeRowLayout( item, y, changed ); - if ( !next || !next->next ) - break; - - if( !TQApplication::reverseLayout() ) - item = next; - w = TQMAX( w, item->x() + item->width() ); - h = TQMAX( h, item->y() + item->height() ); - item = next; - if ( d->arrangement == LeftToRight ) - h = TQMAX( h, y ); - - item = item->next; - } - - if ( d->lastItem && d->arrangement == TopToBottom ) { - item = d->lastItem; - int x = item->x(); - while ( item && item->x() >= x ) { - w = TQMAX( w, item->x() + item->width() ); - h = TQMAX( h, item->y() + item->height() ); - item = item->prev; - } - } - - w = TQMAX( TQMAX( d->cachedW, w ), d->lastItem->x() + d->lastItem->width() ); - h = TQMAX( TQMAX( d->cachedH, h ), d->lastItem->y() + d->lastItem->height() ); - - if ( d->arrangement == TopToBottom ) - w += d->spacing; - else - h += d->spacing; - viewport()->setUpdatesEnabled( FALSE ); - resizeContents( w, h ); - viewport()->setUpdatesEnabled( TRUE ); - viewport()->tqrepaint( FALSE ); - } - - int cx = d->cachedContentsX == -1 ? contentsX() : d->cachedContentsX; - int cy = d->cachedContentsY == -1 ? contentsY() : d->cachedContentsY; - - if ( cx != contentsX() || cy != contentsY() ) - setContentsPos( cx, cy ); - - d->cachedContentsX = d->cachedContentsY = -1; - d->cachedW = d->cachedH = 0; -} - -/*! - Takes the icon view item \a item out of the icon view and causes - an update of the screen display. The item is not deleted. You - should normally not need to call this function because - TQIconViewItem::~TQIconViewItem() calls it. The normal way to delete - an item is to delete it. -*/ - -void TQIconView::takeItem( TQIconViewItem *item ) -{ - if ( !item ) - return; - - if ( item->d->container1 ) - item->d->container1->items.removeRef( item ); - if ( item->d->container2 ) - item->d->container2->items.removeRef( item ); - item->d->container2 = 0; - item->d->container1 = 0; - - bool block = tqsignalsBlocked(); - blockSignals( d->clearing ); - - TQRect r = item->rect(); - - if ( d->currentItem == item ) { - if ( item->prev ) { - d->currentItem = item->prev; - emit currentChanged( d->currentItem ); - repaintItem( d->currentItem ); - } else if ( item->next ) { - d->currentItem = item->next; - emit currentChanged( d->currentItem ); - repaintItem( d->currentItem ); - } else { - d->currentItem = 0; - emit currentChanged( d->currentItem ); - } - } - if ( item->isSelected() ) { - item->selected = FALSE; - emit selectionChanged(); - } - - if ( item == d->firstItem ) { - d->firstItem = d->firstItem->next; - if ( d->firstItem ) - d->firstItem->prev = 0; - } else if ( item == d->lastItem ) { - d->lastItem = d->lastItem->prev; - if ( d->lastItem ) - d->lastItem->next = 0; - } else { - TQIconViewItem *i = item; - if ( i ) { - if ( i->prev ) - i->prev->next = i->next; - if ( i->next ) - i->next->prev = i->prev; - } - } - - if ( d->selectAnchor == item ) - d->selectAnchor = d->currentItem; - - if ( !d->clearing ) - repaintContents( r.x(), r.y(), r.width(), r.height(), TRUE ); - - item->view = 0; - item->prev = 0; - item->next = 0; - d->count--; - - blockSignals( block ); -} - -/*! - Returns the index of \a item, or -1 if \a item doesn't exist in - this icon view. -*/ - -int TQIconView::index( const TQIconViewItem *item ) const -{ - if ( !item ) - return -1; - - if ( item == d->firstItem ) - return 0; - else if ( item == d->lastItem ) - return d->count - 1; - else { - TQIconViewItem *i = d->firstItem; - int j = 0; - while ( i && i != item ) { - i = i->next; - ++j; - } - - return i ? j : -1; - } -} - -/*! - Returns a pointer to the first item of the icon view, or 0 if - there are no items in the icon view. - - \sa lastItem() currentItem() -*/ - -TQIconViewItem *TQIconView::firstItem() const -{ - return d->firstItem; -} - -/*! - Returns a pointer to the last item of the icon view, or 0 if there - are no items in the icon view. - - \sa firstItem() currentItem() -*/ - -TQIconViewItem *TQIconView::lastItem() const -{ - return d->lastItem; -} - -/*! - Returns a pointer to the current item of the icon view, or 0 if no - item is current. - - \sa setCurrentItem() firstItem() lastItem() -*/ - -TQIconViewItem *TQIconView::currentItem() const -{ - return d->currentItem; -} - -/*! - Makes \a item the new current item of the icon view. -*/ - -void TQIconView::setCurrentItem( TQIconViewItem *item ) -{ - if ( !item || item == d->currentItem ) - return; - - setMicroFocusHint( item->x(), item->y(), item->width(), item->height(), FALSE ); - - TQIconViewItem *old = d->currentItem; - d->currentItem = item; - emit currentChanged( d->currentItem ); - if ( d->selectionMode == Single ) { - bool changed = FALSE; - if ( old && old->selected ) { - old->selected = FALSE; - changed = TRUE; - } - if ( item && !item->selected && item->isSelectable() && d->selectionMode != NoSelection ) { - item->selected = TRUE; - changed = TRUE; - emit selectionChanged( item ); - } - if ( changed ) - emit selectionChanged(); - } - - if ( old ) - repaintItem( old ); - repaintItem( d->currentItem ); -} - -/*! - Selects or unselects \a item depending on \a s, and may also - unselect other items, depending on TQIconView::selectionMode() and - \a cb. - - If \a s is FALSE, \a item is unselected. - - If \a s is TRUE and TQIconView::selectionMode() is \c Single, \a - item is selected, and the item which was selected is unselected. - - If \a s is TRUE and TQIconView::selectionMode() is \c Extended, \a - item is selected. If \a cb is TRUE, the selection state of the - icon view's other items is left unchanged. If \a cb is FALSE (the - default) all other items are unselected. - - If \a s is TRUE and TQIconView::selectionMode() is \c Multi \a item - is selected. - - Note that \a cb is used only if TQIconView::selectionMode() is \c - Extended. \a cb defaults to FALSE. - - All items whose selection status is changed tqrepaint themselves. -*/ - -void TQIconView::setSelected( TQIconViewItem *item, bool s, bool cb ) -{ - if ( !item ) - return; - item->setSelected( s, cb ); -} - -/*! - \property TQIconView::count - \brief the number of items in the icon view -*/ - -uint TQIconView::count() const -{ - return d->count; -} - -/*! - Performs autoscrolling when selecting multiple icons with the - rubber band. -*/ - -void TQIconView::doAutoScroll() -{ - TQRect oldRubber = *d->rubber; - - TQPoint vp = viewport()->mapFromGlobal( TQCursor::pos() ); - TQPoint pos = viewportToContents( vp ); - - if ( pos == d->rubber->bottomRight() ) - return; - - d->rubber->setRight( pos.x() ); - d->rubber->setBottom( pos.y() ); - - int minx = contentsWidth(), miny = contentsHeight(); - int maxx = 0, maxy = 0; - bool changed = FALSE; - bool block = tqsignalsBlocked(); - - TQRect rr; - - blockSignals( TRUE ); - viewport()->setUpdatesEnabled( FALSE ); - bool alreadyIntersected = FALSE; - TQRect nr = d->rubber->normalize(); - TQRect rubberUnion = nr.unite( oldRubber.normalize() ); - TQIconViewPrivate::ItemContainer *c = d->firstContainer; - for ( ; c; c = c->n ) { - if ( c->rect.intersects( rubberUnion ) ) { - alreadyIntersected = TRUE; - TQIconViewItem *item = c->items.first(); - for ( ; item; item = c->items.next() ) { - if ( d->selectedItems.find( item ) ) - continue; - if ( !item->intersects( nr ) ) { - if ( item->isSelected() ) { - item->setSelected( FALSE ); - changed = TRUE; - rr = rr.unite( item->rect() ); - } - } else if ( item->intersects( nr ) ) { - if ( !item->isSelected() && item->isSelectable() ) { - item->setSelected( TRUE, TRUE ); - changed = TRUE; - rr = rr.unite( item->rect() ); - } - - minx = TQMIN( minx, item->x() - 1 ); - miny = TQMIN( miny, item->y() - 1 ); - maxx = TQMAX( maxx, item->x() + item->width() + 1 ); - maxy = TQMAX( maxy, item->y() + item->height() + 1 ); - } - } - } else { - if ( alreadyIntersected ) - break; - } - } - viewport()->setUpdatesEnabled( TRUE ); - blockSignals( block ); - - // static bool drawAll; - if ( d->backrubber == 0 ) { - d->backrubber = new TQPixmap( viewport()->rect().size() ); - d->backrubber->fill( viewport(), viewport()->rect().topLeft() ); - // drawAll = true; - } - - // int oldX = 0, oldY = 0; - // if ( !drawAll && d->scrollTimer ) { - // oldX = contentsX(); - // oldY = contentsY(); - // } - ensureVisible( pos.x(), pos.y() ); - // if ( !drawAll && d->scrollTimer && ( oldX != contentsX() || oldY != contentsY() ) ) - // drawAll = true; - - TQRect allRect = oldRubber.normalize(); - if ( changed ) - allRect |= rr.normalize(); - allRect |= d->rubber->normalize(); - TQPoint point = contentsToViewport( allRect.topLeft() ); - allRect = TQRect( point.x(), point.y(), allRect.width(), allRect.height() ); - allRect &= viewport()->rect(); - - d->dragging = FALSE; - - TQPainter p( d->backrubber ); - p.translate( -contentsX(), -contentsY() ); -#if 0 - if ( !drawAll ) { - oldRubber = oldRubber.normalize(); - point = contentsToViewport( oldRubber.topLeft() ); - oldRubber = TQRect( point.x(), point.y(), oldRubber.width(), oldRubber.height() ); - oldRubber &= viewport()->rect(); - - point = contentsToViewport( nr.topLeft() ); - nr = TQRect( point.x(), point.y(), nr.width(), nr.height() ); - nr &= viewport()->rect(); - - TQRegion region; - if ( allRect != nr ) - region = TQRegion(allRect).subtract( TQRegion( nr ) ); - if ( allRect != oldRubber ) - region += TQRegion(allRect).subtract( TQRegion( oldRubber ) ); - - TQMemArray< TQRect > ar = region.rects(); - for ( uint i = 0; i < ar.size(); ++i ) { - ar[i].addCoords( -2, -2, 4, 4 ); - ar[i] = ar[i].normalize(); - - p.setClipRect( ar[i] ); - drawContents( &p, contentsX() + ar[i].left(), contentsY() + ar[i].top(), ar[i].width(), ar[i].height() ); - } - } - else -#endif - { - drawContents( &p, - contentsX() + allRect.left(), contentsY() + allRect.top(), - allRect.width(), allRect.height() ); - } - - p.end(); - // drawAll = false; - d->dragging = TRUE; - bitBlt( viewport(), allRect.topLeft(), d->backrubber, allRect ); - - if ( changed ) { - emit selectionChanged(); - if ( d->selectionMode == Single ) - emit selectionChanged( d->currentItem ); - } - - if ( !TQRect( 50, 50, viewport()->width()-100, viewport()->height()-100 ).contains( vp ) && - !d->scrollTimer ) { - d->scrollTimer = new TQTimer( this ); - - connect( d->scrollTimer, TQT_SIGNAL( timeout() ), - this, TQT_SLOT( doAutoScroll() ) ); - d->scrollTimer->start( 100, FALSE ); - } else if ( TQRect( 50, 50, viewport()->width()-100, viewport()->height()-100 ).contains( vp ) && - d->scrollTimer ) { - disconnect( d->scrollTimer, TQT_SIGNAL( timeout() ), - this, TQT_SLOT( doAutoScroll() ) ); - d->scrollTimer->stop(); - delete d->scrollTimer; - d->scrollTimer = 0; - } - -} - -/*! - \reimp -*/ - -void TQIconView::drawContents( TQPainter *p, int cx, int cy, int cw, int ch ) -{ - p->save(); - TQRect r = TQRect( cx, cy, cw, ch ); - - TQIconViewPrivate::ItemContainer *c = d->firstContainer; - TQRegion remaining( TQRect( cx, cy, cw, ch ) ); - bool alreadyIntersected = FALSE; - while ( c ) { - if ( c->rect.intersects( r ) ) { - p->save(); - p->resetXForm(); - TQRect r2 = c->rect; - r2 = r2.intersect( r ); - TQRect r3( contentsToViewport( TQPoint( r2.x(), r2.y() ) ), TQSize( r2.width(), r2.height() ) ); - if ( d->drawAllBack ) { - p->setClipRect( r3 ); - } else { - TQRegion reg = d->clipRegion.intersect( r3 ); - p->setClipRegion( reg ); - } - drawBackground( p, r3 ); - remaining = remaining.subtract( r3 ); - p->restore(); - - TQColorGroup cg; - d->drawActiveSelection = hasFocus() || d->inMenuMode - || !tqstyle().tqstyleHint( TQStyle::SH_ItemView_ChangeHighlightOnFocus, this ); - - if ( !d->drawActiveSelection ) - cg = tqpalette().inactive(); - else - cg = tqcolorGroup(); - - TQIconViewItem *item = c->items.first(); - // clip items to the container rect by default... this - // prevents icons with alpha channels from being painted - // twice when they are in 2 containers - // - // NOTE: the item could override this cliprect in it's - // paintItem() implementation, which makes this useless - p->setClipRect( TQRect( contentsToViewport( r2.topLeft() ), r2.size() ) ); - for ( ; item; item = c->items.next() ) { - if ( item->rect().intersects( r ) && !item->dirty ) { - p->save(); - p->setFont( font() ); - item->paintItem( p, cg ); - p->restore(); - } - } - alreadyIntersected = TRUE; - } else { - if ( alreadyIntersected ) - break; - } - c = c->n; - } - - if ( !remaining.isNull() && !remaining.isEmpty() ) { - p->save(); - p->resetXForm(); - if ( d->drawAllBack ) { - p->setClipRegion( remaining ); - } else { - remaining = d->clipRegion.intersect( remaining ); - p->setClipRegion( remaining ); - } - drawBackground( p, remaining.boundingRect() ); - p->restore(); - } - - if ( ( hasFocus() || viewport()->hasFocus() ) && d->currentItem && - d->currentItem->rect().intersects( r ) ) { - d->currentItem->paintFocus( p, tqcolorGroup() ); - } - - p->restore(); - if ( d->rubber ) { - p->save(); - p->translate( contentsX(), contentsY() ); - p->setRasterOp( NotROP ); - p->setPen( TQPen( color0, 1 ) ); - p->setBrush( NoBrush ); - drawRubber( p ); - p->restore(); - } -} - -/*! - \overload - - Arranges all the items in the grid given by gridX() and gridY(). - - Even if sorting() is enabled, the items are not sorted by this - function. If you want to sort or rearrange the items, use - iconview->sort(iconview->sortDirection()). - - If \a update is TRUE (the default), the viewport is repainted as - well. - - \sa TQIconView::setGridX(), TQIconView::setGridY(), TQIconView::sort() -*/ - -void TQIconView::arrangeItemsInGrid( bool update ) -{ - if ( !d->firstItem || !d->lastItem ) - return; - - d->containerUpdateLocked = TRUE; - - int w = 0, h = 0, y = d->spacing; - - TQIconViewItem *item = d->firstItem; - bool changedLayout = FALSE; - while ( item ) { - bool changed; - TQIconViewItem *next = makeRowLayout( item, y, changed ); - changedLayout = changed || changedLayout; - if( !TQApplication::reverseLayout() ) - item = next; - w = TQMAX( w, item->x() + item->width() ); - h = TQMAX( h, item->y() + item->height() ); - item = next; - if ( d->arrangement == LeftToRight ) - h = TQMAX( h, y ); - - if ( !item || !item->next ) - break; - - item = item->next; - } - - if ( d->lastItem && d->arrangement == TopToBottom ) { - item = d->lastItem; - int x = item->x(); - while ( item && item->x() >= x ) { - w = TQMAX( w, item->x() + item->width() ); - h = TQMAX( h, item->y() + item->height() ); - item = item->prev; - } - } - d->containerUpdateLocked = FALSE; - - w = TQMAX( TQMAX( d->cachedW, w ), d->lastItem->x() + d->lastItem->width() ); - h = TQMAX( TQMAX( d->cachedH, h ), d->lastItem->y() + d->lastItem->height() ); - - if ( d->arrangement == TopToBottom ) - w += d->spacing; - else - h += d->spacing; - - bool ue = isUpdatesEnabled(); - viewport()->setUpdatesEnabled( FALSE ); - int vw = visibleWidth(); - int vh = visibleHeight(); - resizeContents( w, h ); - bool doAgain = FALSE; - if ( d->arrangement == LeftToRight ) - doAgain = visibleWidth() != vw; - if ( d->arrangement == TopToBottom ) - doAgain = visibleHeight() != vh; - if ( doAgain ) // in the case that the visibleExtend changed because of the resizeContents (scrollbar show/hide), redo tqlayout again - arrangeItemsInGrid( FALSE ); - viewport()->setUpdatesEnabled( ue ); - d->dirty = !isVisible(); - rebuildContainers(); - if ( update && ( !optimize_tqlayout || changedLayout ) ) - repaintContents( contentsX(), contentsY(), viewport()->width(), viewport()->height(), FALSE ); -} - -/*! - This variant uses \a grid instead of (gridX(), gridY()). If \a - grid is invalid (see TQSize::isValid()), arrangeItemsInGrid() - calculates a valid grid itself and uses that. - - If \a update is TRUE (the default) the viewport is repainted. -*/ - -void TQIconView::arrangeItemsInGrid( const TQSize &grid, bool update ) -{ - d->containerUpdateLocked = TRUE; - TQSize grid_( grid ); - if ( !grid_.isValid() ) { - int w = 0, h = 0; - TQIconViewItem *item = d->firstItem; - for ( ; item; item = item->next ) { - w = TQMAX( w, item->width() ); - h = TQMAX( h, item->height() ); - } - - grid_ = TQSize( TQMAX( d->rastX + d->spacing, w ), - TQMAX( d->rastY + d->spacing, h ) ); - } - - int w = 0, h = 0; - TQIconViewItem *item = d->firstItem; - for ( ; item; item = item->next ) { - int nx = item->x() / grid_.width(); - int ny = item->y() / grid_.height(); - item->move( nx * grid_.width(), - ny * grid_.height() ); - w = TQMAX( w, item->x() + item->width() ); - h = TQMAX( h, item->y() + item->height() ); - item->dirty = FALSE; - } - d->containerUpdateLocked = FALSE; - - resizeContents( w, h ); - rebuildContainers(); - if ( update ) - repaintContents( contentsX(), contentsY(), viewport()->width(), viewport()->height(), FALSE ); -} - -/*! - \reimp -*/ - -void TQIconView::setContentsPos( int x, int y ) -{ - if ( d->updateTimer->isActive() ) { - d->cachedContentsX = x; - d->cachedContentsY = y; - } else { - d->cachedContentsY = d->cachedContentsX = -1; - TQScrollView::setContentsPos( x, y ); - } -} - -/*! - \reimp -*/ - -void TQIconView::showEvent( TQShowEvent * ) -{ - if ( d->dirty ) { - resizeContents( TQMAX( contentsWidth(), viewport()->width() ), - TQMAX( contentsHeight(), viewport()->height() ) ); - if ( d->resortItemsWhenInsert ) - sort( d->sortDirection ); - if ( autoArrange() ) - arrangeItemsInGrid( FALSE ); - } - TQScrollView::show(); -} - -/*! - \property TQIconView::selectionMode - \brief the selection mode of the icon view - - This can be \c Single (the default), \c Extended, \c Multi or \c - NoSelection. -*/ - -void TQIconView::setSelectionMode( SelectionMode m ) -{ - d->selectionMode = m; -} - -TQIconView::SelectionMode TQIconView::selectionMode() const -{ - return d->selectionMode; -} - -/*! - Returns a pointer to the item that contains point \a pos, which is - given in contents coordinates, or 0 if no item contains point \a - pos. -*/ - -TQIconViewItem *TQIconView::findItem( const TQPoint &pos ) const -{ - if ( !d->firstItem ) - return 0; - - TQIconViewPrivate::ItemContainer *c = d->lastContainer; - for ( ; c; c = c->p ) { - if ( c->rect.contains( pos ) ) { - TQIconViewItem *item = c->items.last(); - for ( ; item; item = c->items.prev() ) - if ( item->contains( pos ) ) - return item; - } - } - - return 0; -} - -/*! - \overload - - Returns a pointer to the first item whose text begins with \a - text, or 0 if no such item could be found. Use the \a compare flag - to control the comparison behaviour. (See \l - {TQt::StringComparisonMode}.) -*/ - -TQIconViewItem *TQIconView::findItem( const TQString &text, TQt::ComparisonFlags compare ) const -{ - if ( !d->firstItem ) - return 0; - - if ( compare == TQt::CaseSensitive || compare == 0 ) - compare |= TQt::ExactMatch; - - TQString itmtxt; - TQString comtxt = text; - if ( ! (compare & TQt::CaseSensitive) ) - comtxt = text.lower(); - - TQIconViewItem *item; - if ( d->currentItem ) - item = d->currentItem; - else - item = d->firstItem; - - TQIconViewItem *beginsWithItem = 0; - TQIconViewItem *endsWithItem = 0; - TQIconViewItem *containsItem = 0; - - if ( item ) { - for ( ; item; item = item->next ) { - if ( ! (compare & TQt::CaseSensitive) ) - itmtxt = item->text().lower(); - else - itmtxt = item->text(); - - if ( compare & TQt::ExactMatch && itmtxt == comtxt ) - return item; - if ( compare & TQt::BeginsWith && !beginsWithItem && itmtxt.startsWith( comtxt ) ) - beginsWithItem = containsItem = item; - if ( compare & TQt::EndsWith && !endsWithItem && itmtxt.endsWith( comtxt ) ) - endsWithItem = containsItem = item; - if ( compare & TQt::Contains && !containsItem && itmtxt.contains( comtxt ) ) - containsItem = item; - } - - if ( d->currentItem && d->firstItem ) { - item = d->firstItem; - for ( ; item && item != d->currentItem; item = item->next ) { - if ( ! (compare & TQt::CaseSensitive) ) - itmtxt = item->text().lower(); - else - itmtxt = item->text(); - - if ( compare & TQt::ExactMatch && itmtxt == comtxt ) - return item; - if ( compare & TQt::BeginsWith && !beginsWithItem && itmtxt.startsWith( comtxt ) ) - beginsWithItem = containsItem = item; - if ( compare & TQt::EndsWith && !endsWithItem && itmtxt.endsWith( comtxt ) ) - endsWithItem = containsItem = item; - if ( compare & TQt::Contains && !containsItem && itmtxt.contains( comtxt ) ) - containsItem = item; - } - } - } - - // Obey the priorities - if ( beginsWithItem ) - return beginsWithItem; - else if ( endsWithItem ) - return endsWithItem; - else if ( containsItem ) - return containsItem; - return 0; -} - -/*! - Unselects all the items. -*/ - -void TQIconView::clearSelection() -{ - selectAll( FALSE ); -} - -/*! - In Multi and Extended modes, this function sets all items to be - selected if \a select is TRUE, and to be unselected if \a select - is FALSE. - - In Single and NoSelection modes, this function only changes the - selection status of currentItem(). -*/ - -void TQIconView::selectAll( bool select ) -{ - if ( d->selectionMode == NoSelection ) - return; - - if ( d->selectionMode == Single ) { - if ( d->currentItem ) - d->currentItem->setSelected( select ); - return; - } - - bool b = tqsignalsBlocked(); - blockSignals( TRUE ); - TQIconViewItem *item = d->firstItem; - TQIconViewItem *i = d->currentItem; - bool changed = FALSE; - bool ue = viewport()->isUpdatesEnabled(); - viewport()->setUpdatesEnabled( FALSE ); - TQRect rr; - for ( ; item; item = item->next ) { - if (item->isVisible()) { - if ( select != item->isSelected() ) { - item->setSelected( select, TRUE ); - rr = rr.unite( item->rect() ); - changed = TRUE; - } - else { - if ( FALSE != item->isSelected() ) { - item->setSelected( FALSE, TRUE ); - changed = TRUE; - } - } - } - } - viewport()->setUpdatesEnabled( ue ); - // we call updateContents not repaintContents because of possible previous updateContents - TQScrollView::updateContents( rr ); - TQApplication::sendPostedEvents( viewport(), TQEvent::Paint ); - if ( i ) - setCurrentItem( i ); - blockSignals( b ); - if ( changed ) { - emit selectionChanged(); - } -} - -/*! - Inverts the selection. Works only in Multi and Extended selection - mode. -*/ - -void TQIconView::invertSelection() -{ - if ( d->selectionMode == Single || - d->selectionMode == NoSelection ) - return; - - bool b = tqsignalsBlocked(); - blockSignals( TRUE ); - TQIconViewItem *item = d->firstItem; - for ( ; item; item = item->next ) - item->setSelected( !item->isSelected(), TRUE ); - blockSignals( b ); - emit selectionChanged(); -} - -/*! - Repaints the \a item. -*/ - -void TQIconView::repaintItem( TQIconViewItem *item ) -{ - if ( !item || item->dirty ) - return; - - if ( TQRect( contentsX(), contentsY(), visibleWidth(), visibleHeight() ). - intersects( TQRect( item->x() - 1, item->y() - 1, item->width() + 2, item->height() + 2 ) ) ) - repaintContents( item->x() - 1, item->y() - 1, item->width() + 2, item->height() + 2, FALSE ); -} - -/*! - Repaints the selected items. -*/ -void TQIconView::repaintSelectedItems() -{ - if ( selectionMode() == NoSelection ) - return; - - if ( selectionMode() == Single ) { - if ( !currentItem() || !currentItem()->isSelected() ) - return; - TQRect tqitemRect = currentItem()->rect(); //rect in contents coordinates - tqitemRect.moveBy( -contentsX(), -contentsY() ); - viewport()->update( tqitemRect ); - } else { - // check if any selected items are visible - TQIconViewItem *item = firstItem(); - const TQRect vr = TQRect( contentsX(), contentsY(), visibleWidth(), visibleHeight() ); - - while ( item ) { - if ( item->isSelected() && item->rect().intersects( vr ) ) - repaintItem( item ); - item = item->nextItem(); - } - } -} - -/*! - Makes sure that \a item is entirely visible. If necessary, - ensureItemVisible() scrolls the icon view. - - \sa ensureVisible() -*/ - -void TQIconView::ensureItemVisible( TQIconViewItem *item ) -{ - if ( !item ) - return; - - if ( (d->updateTimer && d->updateTimer->isActive()) || - (d->fullRedrawTimer && d->fullRedrawTimer->isActive()) ) - slotUpdate(); - - int w = item->width(); - int h = item->height(); - ensureVisible( item->x() + w / 2, item->y() + h / 2, - w / 2 + 1, h / 2 + 1 ); -} - -/*! - Finds the first item whose bounding rectangle overlaps \a r and - returns a pointer to that item. \a r is given in content - coordinates. Returns 0 if no item overlaps \a r. - - If you want to find all items that touch \a r, you will need to - use this function and nextItem() in a loop ending at - findLastVisibleItem() and test TQIconViewItem::rect() for each of - these items. - - \sa findLastVisibleItem() TQIconViewItem::rect() -*/ - -TQIconViewItem* TQIconView::findFirstVisibleItem( const TQRect &r ) const -{ - TQIconViewPrivate::ItemContainer *c = d->firstContainer; - TQIconViewItem *i = 0; - bool alreadyIntersected = FALSE; - for ( ; c; c = c->n ) { - if ( c->rect.intersects( r ) ) { - alreadyIntersected = TRUE; - TQIconViewItem *item = c->items.first(); - for ( ; item; item = c->items.next() ) { - if ( r.intersects( item->rect() ) ) { - if ( !i ) { - i = item; - } else { - TQRect r2 = item->rect(); - TQRect r3 = i->rect(); - if ( r2.y() < r3.y() ) - i = item; - else if ( r2.y() == r3.y() && - r2.x() < r3.x() ) - i = item; - } - } - } - } else { - if ( alreadyIntersected ) - break; - } - } - - return i; -} - -/*! - Finds the last item whose bounding rectangle overlaps \a r and - returns a pointer to that item. \a r is given in content - coordinates. Returns 0 if no item overlaps \a r. - - \sa findFirstVisibleItem() -*/ - -TQIconViewItem* TQIconView::findLastVisibleItem( const TQRect &r ) const -{ - TQIconViewPrivate::ItemContainer *c = d->firstContainer; - TQIconViewItem *i = 0; - bool alreadyIntersected = FALSE; - for ( ; c; c = c->n ) { - if ( c->rect.intersects( r ) ) { - alreadyIntersected = TRUE; - TQIconViewItem *item = c->items.first(); - for ( ; item; item = c->items.next() ) { - if ( r.intersects( item->rect() ) ) { - if ( !i ) { - i = item; - } else { - TQRect r2 = item->rect(); - TQRect r3 = i->rect(); - if ( r2.y() > r3.y() ) - i = item; - else if ( r2.y() == r3.y() && - r2.x() > r3.x() ) - i = item; - } - } - } - } else { - if ( alreadyIntersected ) - break; - } - } - - return i; -} - -/*! - Clears the icon view. All items are deleted. -*/ - -void TQIconView::clear() -{ - setContentsPos( 0, 0 ); - d->clearing = TRUE; - bool block = tqsignalsBlocked(); - blockSignals( TRUE ); - clearSelection(); - blockSignals( block ); - setContentsPos( 0, 0 ); - d->currentItem = 0; - - if ( !d->firstItem ) { - d->clearing = FALSE; - return; - } - - TQIconViewItem *item = d->firstItem, *tmp; - d->firstItem = 0; - while ( item ) { - tmp = item->next; - delete item; - item = tmp; - } - TQIconViewPrivate::ItemContainer *c = d->firstContainer, *tmpc; - while ( c ) { - tmpc = c->n; - delete c; - c = tmpc; - } - d->firstContainer = d->lastContainer = 0; - - d->count = 0; - d->lastItem = 0; - setCurrentItem( 0 ); - d->highlightedItem = 0; - d->tmpCurrentItem = 0; - d->drawDragShapes = FALSE; - - resizeContents( 0, 0 ); - // maybe we don�t need this update, so delay it - d->fullRedrawTimer->start( 0, TRUE ); - - d->cleared = TRUE; - d->clearing = FALSE; -} - -/*! - \property TQIconView::gridX - \brief the horizontal grid of the icon view - - If the value is -1, (the default), TQIconView computes suitable - column widths based on the icon view's contents. - - Note that setting a grid width overrides setMaxItemWidth(). -*/ - -void TQIconView::setGridX( int rx ) -{ - d->rastX = rx >= 0 ? rx : -1; -} - -/*! - \property TQIconView::gridY - \brief the vertical grid of the icon view - - If the value is -1, (the default), TQIconView computes suitable - column heights based on the icon view's contents. -*/ - -void TQIconView::setGridY( int ry ) -{ - d->rastY = ry >= 0 ? ry : -1; -} - -int TQIconView::gridX() const -{ - return d->rastX; -} - -int TQIconView::gridY() const -{ - return d->rastY; -} - -/*! - \property TQIconView::spacing - \brief the space in pixels between icon view items - - The default is 5 pixels. - - Negative values for spacing are illegal. -*/ - -void TQIconView::setSpacing( int sp ) -{ - d->spacing = sp; -} - -int TQIconView::spacing() const -{ - return d->spacing; -} - -/*! - \property TQIconView::itemTextPos - \brief the position where the text of each item is drawn. - - Valid values are \c Bottom or \c Right. The default is \c Bottom. -*/ - -void TQIconView::setItemTextPos( ItemTextPos pos ) -{ - if ( pos == d->itemTextPos || ( pos != Bottom && pos != Right ) ) - return; - - d->itemTextPos = pos; - - TQIconViewItem *item = d->firstItem; - for ( ; item; item = item->next ) { - item->wordWrapDirty = TRUE; - item->calcRect(); - } - - arrangeItemsInGrid( TRUE ); -} - -TQIconView::ItemTextPos TQIconView::itemTextPos() const -{ - return d->itemTextPos; -} - -/*! - \property TQIconView::itemTextBackground - \brief the brush to use when drawing the background of an item's text. - - By default this brush is set to Qt::NoBrush, meaning that only the - normal icon view background is used. -*/ - -void TQIconView::setItemTextBackground( const TQBrush &brush ) -{ - d->itemTextBrush = brush; -} - -TQBrush TQIconView::itemTextBackground() const -{ - return d->itemTextBrush; -} - -/*! - \property TQIconView::arrangement - \brief the arrangement mode of the icon view - - This can be \c LeftToRight or \c TopToBottom. The default is \c - LeftToRight. -*/ - -void TQIconView::setArrangement( Arrangement am ) -{ - if ( d->arrangement == am ) - return; - - d->arrangement = am; - - viewport()->setUpdatesEnabled( FALSE ); - resizeContents( viewport()->width(), viewport()->height() ); - viewport()->setUpdatesEnabled( TRUE ); - arrangeItemsInGrid( TRUE ); -} - -TQIconView::Arrangement TQIconView::arrangement() const -{ - return d->arrangement; -} - -/*! - \property TQIconView::resizeMode - \brief the resize mode of the icon view - - This can be \c Fixed or \c Adjust. The default is \c Fixed. - See \l ResizeMode. -*/ - -void TQIconView::setResizeMode( ResizeMode rm ) -{ - if ( d->resizeMode == rm ) - return; - - d->resizeMode = rm; -} - -TQIconView::ResizeMode TQIconView::resizeMode() const -{ - return d->resizeMode; -} - -/*! - \property TQIconView::maxItemWidth - \brief the maximum width that an item may have. - - The default is 100 pixels. - - Note that if the gridX() value is set TQIconView will ignore - this property. -*/ - -void TQIconView::setMaxItemWidth( int w ) -{ - d->maxItemWidth = w; -} - -/*! - \property TQIconView::maxItemTextLength - \brief the maximum length (in characters) that an item's text may have. - - The default is 255 characters. -*/ - -void TQIconView::setMaxItemTextLength( int w ) -{ - d->maxItemTextLength = w; -} - -int TQIconView::maxItemWidth() const -{ - if ( d->rastX != -1 ) - return d->rastX - 2; - else - return d->maxItemWidth; -} - -int TQIconView::maxItemTextLength() const -{ - return d->maxItemTextLength; -} - -/*! - \property TQIconView::itemsMovable - \brief whether the user is allowed to move items around in the icon view - - The default is TRUE. -*/ - -void TQIconView::setItemsMovable( bool b ) -{ - d->rearrangeEnabled = b; -} - -bool TQIconView::itemsMovable() const -{ - return d->rearrangeEnabled; -} - -/*! - \property TQIconView::autoArrange - \brief whether the icon view rearranges its items when a new item is inserted. - - The default is TRUE. - - Note that if the icon view is not visible at the time of - insertion, TQIconView defers all position-related work until it is - shown and then calls arrangeItemsInGrid(). -*/ - -void TQIconView::setAutoArrange( bool b ) -{ - d->reorderItemsWhenInsert = b; -} - -bool TQIconView::autoArrange() const -{ - return d->reorderItemsWhenInsert; -} - -/*! - If \a sort is TRUE, this function sets the icon view to sort items - when a new item is inserted. If \a sort is FALSE, the icon view - will not be sorted. - - Note that autoArrange() must be TRUE for sorting to take place. - - If \a ascending is TRUE (the default), items are sorted in - ascending order. If \a ascending is FALSE, items are sorted in - descending order. - - TQIconViewItem::compare() is used to compare pairs of items. The - sorting is based on the items' keys; these default to the items' - text unless specifically set to something else. - - \sa TQIconView::setAutoArrange(), TQIconView::autoArrange(), - sortDirection(), sort(), TQIconViewItem::setKey() -*/ - -void TQIconView::setSorting( bool sort, bool ascending ) -{ - d->resortItemsWhenInsert = sort; - d->sortDirection = ascending; -} - -/*! - \property TQIconView::sorting - \brief whether the icon view sorts on insertion - - The default is FALSE, i.e. no sorting on insertion. - - To set the sorting, use setSorting(). -*/ - -bool TQIconView::sorting() const -{ - return d->resortItemsWhenInsert; -} - -/*! - \property TQIconView::sortDirection - \brief whether the sort direction for inserting new items is ascending; - - The default is TRUE (i.e. ascending). This sort direction is only - meaningful if both sorting() and autoArrange() are TRUE. - - To set the sort direction, use setSorting() -*/ - -bool TQIconView::sortDirection() const -{ - return d->sortDirection; -} - -/*! - \property TQIconView::wordWrapIconText - \brief whether the item text will be word-wrapped if it is too long - - The default is TRUE. - - If this property is FALSE, icon text that is too long is - truncated, and an ellipsis (...) appended to indicate that - truncation has occurred. The full text can still be seen by the - user if they hover the mouse because the full text is shown in a - tooltip; see setShowToolTips(). -*/ - -void TQIconView::setWordWrapIconText( bool b ) -{ - if ( d->wordWrapIconText == (uint)b ) - return; - - d->wordWrapIconText = b; - for ( TQIconViewItem *item = d->firstItem; item; item = item->next ) { - item->wordWrapDirty = TRUE; - item->calcRect(); - } - arrangeItemsInGrid( TRUE ); -} - -bool TQIconView::wordWrapIconText() const -{ - return d->wordWrapIconText; -} - -/*! - \property TQIconView::showToolTips - \brief whether the icon view will display a tool tip with the complete text for any truncated item text - - The default is TRUE. Note that this has no effect if - setWordWrapIconText() is TRUE, as it is by default. -*/ - -void TQIconView::setShowToolTips( bool b ) -{ - d->showTips = b; -} - -bool TQIconView::showToolTips() const -{ - return d->showTips; -} - -/*! - \reimp -*/ -void TQIconView::contentsMousePressEvent( TQMouseEvent *e ) -{ - contentsMousePressEventEx( e ); -} - -void TQIconView::contentsMousePressEventEx( TQMouseEvent *e ) -{ - if ( d->rubber ) { - TQRect r( d->rubber->normalize() ); - delete d->rubber; - d->rubber = 0; - - repaintContents( r, FALSE ); - d->dragging = FALSE; - - delete d->backrubber; - d->backrubber = 0; - - if ( d->scrollTimer ) { - disconnect( d->scrollTimer, TQT_SIGNAL( timeout() ), this, TQT_SLOT( doAutoScroll() ) ); - d->scrollTimer->stop(); - delete d->scrollTimer; - d->scrollTimer = 0; - } - } - - d->dragStartPos = e->pos(); - TQIconViewItem *item = findItem( e->pos() ); - d->pressedItem = item; - - if ( item ) - d->selectAnchor = item; - -#ifndef TQT_NO_TEXTEDIT - if ( d->renamingItem ) - d->renamingItem->renameItem(); -#endif - - if ( !d->currentItem && !item && d->firstItem ) { - d->currentItem = d->firstItem; - repaintItem( d->firstItem ); - } - - if (item && item->dragEnabled()) - d->startDragItem = item; - else - d->startDragItem = 0; - - if ( e->button() == Qt::LeftButton && !( e->state() & ShiftButton ) && - !( e->state() & ControlButton ) && item && item->isSelected() && - item->textRect( FALSE ).contains( e->pos() ) ) { - - if ( !item->renameEnabled() ) { - d->mousePressed = TRUE; -#ifndef TQT_NO_TEXTEDIT - } else { - ensureItemVisible( item ); - setCurrentItem( item ); - item->rename(); - goto emit_Q_SIGNALS; -#endif - } - } - - d->pressedSelected = item && item->isSelected(); - - if ( item && item->isSelectable() ) { - if ( d->selectionMode == Single ) - item->setSelected( TRUE, e->state() & ControlButton ); - else if ( d->selectionMode == Multi ) - item->setSelected( !item->isSelected(), e->state() & ControlButton ); - else if ( d->selectionMode == Extended ) { - if ( e->state() & ShiftButton ) { - d->pressedSelected = FALSE; - bool block = tqsignalsBlocked(); - blockSignals( TRUE ); - viewport()->setUpdatesEnabled( FALSE ); - TQRect r; - bool select = TRUE; - if ( d->currentItem ) - r = TQRect( TQMIN( d->currentItem->x(), item->x() ), - TQMIN( d->currentItem->y(), item->y() ), - 0, 0 ); - else - r = TQRect( 0, 0, 0, 0 ); - if ( d->currentItem ) { - if ( d->currentItem->x() < item->x() ) - r.setWidth( item->x() - d->currentItem->x() + item->width() ); - else - r.setWidth( d->currentItem->x() - item->x() + d->currentItem->width() ); - if ( d->currentItem->y() < item->y() ) - r.setHeight( item->y() - d->currentItem->y() + item->height() ); - else - r.setHeight( d->currentItem->y() - item->y() + d->currentItem->height() ); - r = r.normalize(); - TQIconViewPrivate::ItemContainer *c = d->firstContainer; - bool alreadyIntersected = FALSE; - TQRect redraw; - for ( ; c; c = c->n ) { - if ( c->rect.intersects( r ) ) { - alreadyIntersected = TRUE; - TQIconViewItem *i = c->items.first(); - for ( ; i; i = c->items.next() ) { - if ( r.intersects( i->rect() ) ) { - redraw = redraw.unite( i->rect() ); - i->setSelected( select, TRUE ); - } - } - } else { - if ( alreadyIntersected ) - break; - } - } - redraw = redraw.unite( item->rect() ); - viewport()->setUpdatesEnabled( TRUE ); - repaintContents( redraw, FALSE ); - } - blockSignals( block ); - viewport()->setUpdatesEnabled( TRUE ); - item->setSelected( select, TRUE ); - emit selectionChanged(); - } else if ( e->state() & ControlButton ) { - d->pressedSelected = FALSE; - item->setSelected( !item->isSelected(), e->state() & ControlButton ); - } else { - item->setSelected( TRUE, e->state() & ControlButton ); - } - } - } else if ( ( d->selectionMode != Single || e->button() == Qt::RightButton ) - && !( e->state() & ControlButton ) ) - selectAll( FALSE ); - - setCurrentItem( item ); - - if ( e->button() == Qt::LeftButton ) { - if ( !item && ( d->selectionMode == Multi || - d->selectionMode == Extended ) ) { - d->tmpCurrentItem = d->currentItem; - d->currentItem = 0; - repaintItem( d->tmpCurrentItem ); - if ( d->rubber ) - delete d->rubber; - d->rubber = 0; - d->rubber = new TQRect( e->x(), e->y(), 0, 0 ); - d->selectedItems.clear(); - if ( ( e->state() & ControlButton ) == ControlButton ) { - for ( TQIconViewItem *i = firstItem(); i; i = i->nextItem() ) - if ( i->isSelected() ) - d->selectedItems.insert( i, i ); - } - } - - d->mousePressed = TRUE; - } - - emit_Q_SIGNALS: - if ( !d->rubber ) { - emit mouseButtonPressed( e->button(), item, e->globalPos() ); - emit pressed( item ); - emit pressed( item, e->globalPos() ); - - if ( e->button() == Qt::RightButton ) - emit rightButtonPressed( item, e->globalPos() ); - } -} - -/*! - \reimp -*/ - -void TQIconView::contentsContextMenuEvent( TQContextMenuEvent *e ) -{ - if ( !tqreceivers( TQT_SIGNAL(contextMenuRequested(TQIconViewItem*,const TQPoint&)) ) ) { - e->ignore(); - return; - } - if ( e->reason() == TQContextMenuEvent::Keyboard ) { - TQIconViewItem *item = currentItem(); - TQRect r = item ? item->rect() : TQRect( 0, 0, visibleWidth(), visibleHeight() ); - emit contextMenuRequested( item, viewport()->mapToGlobal( contentsToViewport( r.center() ) ) ); - } else { - d->mousePressed = FALSE; - TQIconViewItem *item = findItem( e->pos() ); - emit contextMenuRequested( item, e->globalPos() ); - } -} - -/*! - \reimp -*/ - -void TQIconView::contentsMouseReleaseEvent( TQMouseEvent *e ) -{ - TQIconViewItem *item = findItem( e->pos() ); - d->selectedItems.clear(); - - bool emitClicked = TRUE; - d->mousePressed = FALSE; - d->startDragItem = 0; - - if ( d->rubber ) { - TQRect r(d->rubber->normalize()); - - if ( ( d->rubber->topLeft() - d->rubber->bottomRight() ).manhattanLength() > - TQApplication::startDragDistance() ) - emitClicked = FALSE; - delete d->rubber; - d->rubber = 0; - repaintContents(r, FALSE); - d->dragging = FALSE; - delete d->backrubber; - d->backrubber = 0; - d->currentItem = d->tmpCurrentItem; - d->tmpCurrentItem = 0; - if ( d->currentItem ) - repaintItem( d->currentItem ); - } - - if ( d->scrollTimer ) { - disconnect( d->scrollTimer, TQT_SIGNAL( timeout() ), this, TQT_SLOT( doAutoScroll() ) ); - d->scrollTimer->stop(); - delete d->scrollTimer; - d->scrollTimer = 0; - } - - if ( d->selectionMode == Extended && - d->currentItem == d->pressedItem && - d->pressedSelected && d->currentItem ) { - bool block = tqsignalsBlocked(); - blockSignals( TRUE ); - clearSelection(); - blockSignals( block ); - if ( d->currentItem->isSelectable() ) { - d->currentItem->selected = TRUE; - repaintItem( d->currentItem ); - } - emit selectionChanged(); - } - d->pressedItem = 0; - - if ( emitClicked ) { - emit mouseButtonClicked( e->button(), item, e->globalPos() ); - emit clicked( item ); - emit clicked( item, e->globalPos() ); - if ( e->button() == Qt::RightButton ) - emit rightButtonClicked( item, e->globalPos() ); - } -} - -/*! - \reimp -*/ - -void TQIconView::contentsMouseMoveEvent( TQMouseEvent *e ) -{ - TQIconViewItem *item = findItem( e->pos() ); - if ( d->highlightedItem != item ) { - if ( item ) - emit onItem( item ); - else - emit onViewport(); - d->highlightedItem = item; - } - - if ( d->mousePressed && e->state() == Qt::NoButton ) - d->mousePressed = FALSE; - - if ( d->startDragItem ) - item = d->startDragItem; - - if ( d->mousePressed && item && item == d->currentItem && - ( item->isSelected() || d->selectionMode == NoSelection ) && item->dragEnabled() ) { - if ( !d->startDragItem ) { - d->currentItem->setSelected( TRUE, TRUE ); - d->startDragItem = item; - } - if ( ( d->dragStartPos - e->pos() ).manhattanLength() > TQApplication::startDragDistance() ) { - d->mousePressed = FALSE; - d->cleared = FALSE; -#ifndef TQT_NO_DRAGANDDROP - startDrag(); -#endif - if ( d->tmpCurrentItem ) - repaintItem( d->tmpCurrentItem ); - } - } else if ( d->mousePressed && !d->currentItem && d->rubber ) { - doAutoScroll(); - } -} - -/*! - \reimp -*/ - -void TQIconView::contentsMouseDoubleClickEvent( TQMouseEvent *e ) -{ - TQIconViewItem *item = findItem( e->pos() ); - if ( item ) { - selectAll( FALSE ); - item->setSelected( TRUE, TRUE ); - emit doubleClicked( item ); - } -} - -/*! - \reimp -*/ - -#ifndef TQT_NO_DRAGANDDROP -void TQIconView::contentsDragEnterEvent( TQDragEnterEvent *e ) -{ - d->dragging = TRUE; - d->drawDragShapes = TRUE; - d->tmpCurrentItem = 0; - initDragEnter( e ); - d->oldDragPos = e->pos(); - d->oldDragAcceptAction = FALSE; - drawDragShapes( e->pos() ); - d->dropped = FALSE; -} - -/*! - \reimp -*/ - -void TQIconView::contentsDragMoveEvent( TQDragMoveEvent *e ) -{ - if ( e->pos() == d->oldDragPos ) { - if (d->oldDragAcceptAction) - e->acceptAction(); - else - e->ignore(); - return; - } - - drawDragShapes( d->oldDragPos ); - d->dragging = FALSE; - - TQIconViewItem *old = d->tmpCurrentItem; - d->tmpCurrentItem = 0; - - TQIconViewItem *item = findItem( e->pos() ); - - if ( item ) { - if ( old && - old->rect().contains(d->oldDragPos) && - !old->rect().contains(e->pos()) ) { - old->dragLeft(); - repaintItem( old ); - } - if ( !item->rect().contains(d->oldDragPos) ) - item->dragEntered(); - if (item->acceptDrop(e) || (item->isSelected() && e->source() == viewport())) { - d->oldDragAcceptAction = TRUE; - e->acceptAction(); - } else { - d->oldDragAcceptAction = FALSE; - e->ignore(); - } - - d->tmpCurrentItem = item; - TQPainter p; - p.begin( viewport() ); - p.translate( -contentsX(), -contentsY() ); - item->paintFocus( &p, tqcolorGroup() ); - p.end(); - } else { - e->acceptAction(); - d->oldDragAcceptAction = TRUE; - if ( old ) { - old->dragLeft(); - repaintItem( old ); - } - } - - d->oldDragPos = e->pos(); - drawDragShapes( e->pos() ); - d->dragging = TRUE; -} - -/*! - \reimp -*/ - -void TQIconView::contentsDragLeaveEvent( TQDragLeaveEvent * ) -{ - if ( !d->dropped ) - drawDragShapes( d->oldDragPos ); - d->dragging = FALSE; - - if ( d->tmpCurrentItem ) { - repaintItem( d->tmpCurrentItem ); - d->tmpCurrentItem->dragLeft(); - } - - d->tmpCurrentItem = 0; - d->isIconDrag = FALSE; - d->iconDragData.clear(); -} - -/*! - \reimp -*/ - -void TQIconView::contentsDropEvent( TQDropEvent *e ) -{ - d->dropped = TRUE; - d->dragging = FALSE; - drawDragShapes( d->oldDragPos ); - - if ( d->tmpCurrentItem ) - repaintItem( d->tmpCurrentItem ); - - TQIconViewItem *i = findItem( e->pos() ); - - if ((!i || i->isSelected()) && e->source() == viewport() && d->currentItem && !d->cleared) { - if ( !d->rearrangeEnabled ) - return; - TQRect r = d->currentItem->rect(); - - d->currentItem->move( e->pos() - d->dragStart ); - - int w = d->currentItem->x() + d->currentItem->width() + 1; - int h = d->currentItem->y() + d->currentItem->height() + 1; - - repaintItem( d->currentItem ); - repaintContents( r.x(), r.y(), r.width(), r.height(), FALSE ); - - int dx = d->currentItem->x() - r.x(); - int dy = d->currentItem->y() - r.y(); - - TQIconViewItem *item = d->firstItem; - TQRect rr; - for ( ; item; item = item->next ) { - if ( item->isSelected() && item != d->currentItem ) { - rr = rr.unite( item->rect() ); - item->moveBy( dx, dy ); - rr = rr.unite( item->rect() ); - } - w = TQMAX( w, item->x() + item->width() + 1 ); - h = TQMAX( h, item->y() + item->height() + 1 ); - } - repaintContents( rr, FALSE ); - bool fullRepaint = FALSE; - if ( w > contentsWidth() || - h > contentsHeight() ) - fullRepaint = TRUE; - - int oldw = contentsWidth(); - int oldh = contentsHeight(); - - resizeContents( w, h ); - - - if ( fullRepaint ) { - repaintContents( oldw, 0, contentsWidth() - oldw, contentsHeight(), FALSE ); - repaintContents( 0, oldh, contentsWidth(), contentsHeight() - oldh, FALSE ); - } - e->acceptAction(); - } else if ( !i && ( e->source() != viewport() || d->cleared ) ) { - TQValueList<TQIconDragItem> lst; - if ( TQIconDrag::canDecode( e ) ) { - TQValueList<TQIconDragDataItem> l; - TQIconDragPrivate::decode( e, l ); - TQValueList<TQIconDragDataItem>::Iterator it = l.begin(); - for ( ; it != l.end(); ++it ) - lst << ( *it ).data; - } - emit dropped( e, lst ); - } else if ( i ) { - TQValueList<TQIconDragItem> lst; - if ( TQIconDrag::canDecode( e ) ) { - TQValueList<TQIconDragDataItem> l; - TQIconDragPrivate::decode( e, l ); - TQValueList<TQIconDragDataItem>::Iterator it = l.begin(); - for ( ; it != l.end(); ++it ) - lst << ( *it ).data; - } - i->dropped( e, lst ); - } - d->isIconDrag = FALSE; -} -#endif - -/*! - \reimp -*/ - -void TQIconView::resizeEvent( TQResizeEvent* e ) -{ - TQScrollView::resizeEvent( e ); - if ( d->resizeMode == Adjust ) { - optimize_tqlayout = TRUE; - adjustItems(); - optimize_tqlayout = FALSE; -#if 0 // no need for timer delay anymore - d->oldSize = e->oldSize(); - if ( d->adjustTimer->isActive() ) - d->adjustTimer->stop(); - d->adjustTimer->start( 0, TRUE ); -#endif - } -} - -/*! - Adjusts the positions of the items to the tqgeometry of the icon - view. -*/ - -void TQIconView::adjustItems() -{ - d->adjustTimer->stop(); - if ( d->resizeMode == Adjust ) - arrangeItemsInGrid( TRUE ); -} - -/*! - \reimp -*/ - -void TQIconView::keyPressEvent( TQKeyEvent *e ) -{ - if ( !d->firstItem ) - return; - - if ( !d->currentItem ) { - setCurrentItem( d->firstItem ); - if ( d->selectionMode == Single ) - d->currentItem->setSelected( TRUE, TRUE ); - return; - } - - bool selectCurrent = TRUE; - - switch ( e->key() ) { - case Key_Escape: - e->ignore(); - break; -#ifndef TQT_NO_TEXTEDIT - case Qt::Key_F2: { - if ( d->currentItem->renameEnabled() ) { - d->currentItem->renameItem(); - d->currentItem->rename(); - return; - } - } break; -#endif - case Qt::Key_Home: { - d->currInputString = TQString::null; - if ( !d->firstItem ) - break; - - selectCurrent = FALSE; - - TQIconViewItem *item = 0; - TQIconViewPrivate::ItemContainer *c = d->firstContainer; - while ( !item && c ) { - TQPtrList<TQIconViewItem> &list = c->items; - TQIconViewItem *i = list.first(); - while ( i ) { - if ( !item ) { - item = i; - } else { - if ( d->arrangement == LeftToRight ) { - // we use pixmap so the items textlength are ignored - // find topmost, leftmost item - if ( i->pixmapRect( FALSE ).y() < item->pixmapRect( FALSE ).y() || - ( i->pixmapRect( FALSE ).y() == item->pixmapRect( FALSE ).y() && - i->pixmapRect( FALSE ).x() < item->pixmapRect( FALSE ).x() ) ) - item = i; - } else { - // find leftmost, topmost item - if ( i->pixmapRect( FALSE ).x() < item->pixmapRect( FALSE ).x() || - ( i->pixmapRect( FALSE ).x() == item->pixmapRect( FALSE ).x() && - i->pixmapRect( FALSE ).y() < item->pixmapRect( FALSE ).y() ) ) - item = i; - } - } - i = list.next(); - } - c = c->n; - } - - if ( item ) { - TQIconViewItem *old = d->currentItem; - setCurrentItem( item ); - ensureItemVisible( item ); - handleItemChange( old, e->state() & ShiftButton, - e->state() & ControlButton, TRUE ); - } - } break; - case Qt::Key_End: { - d->currInputString = TQString::null; - if ( !d->lastItem ) - break; - - selectCurrent = FALSE; - - TQIconViewItem *item = 0; - TQIconViewPrivate::ItemContainer *c = d->lastContainer; - while ( !item && c ) { - TQPtrList<TQIconViewItem> &list = c->items; - TQIconViewItem *i = list.first(); - while ( i ) { - if ( !item ) { - item = i; - } else { - if ( d->arrangement == LeftToRight ) { - // find bottommost, rightmost item - if ( i->pixmapRect( FALSE ).bottom() > item->pixmapRect( FALSE ).bottom() || - ( i->pixmapRect( FALSE ).bottom() == item->pixmapRect( FALSE ).bottom() && - i->pixmapRect( FALSE ).right() > item->pixmapRect( FALSE ).right() ) ) - item = i; - } else { - // find rightmost, bottommost item - if ( i->pixmapRect( FALSE ).right() > item->pixmapRect( FALSE ).right() || - ( i->pixmapRect( FALSE ).right() == item->pixmapRect( FALSE ).right() && - i->pixmapRect( FALSE ).bottom() > item->pixmapRect( FALSE ).bottom() ) ) - item = i; - } - } - i = list.next(); - } - c = c->p; - } - - if ( item ) { - TQIconViewItem *old = d->currentItem; - setCurrentItem( item ); - ensureItemVisible( item ); - handleItemChange( old, e->state() & ShiftButton, - e->state() & ControlButton, TRUE ); - } - } break; - case Qt::Key_Right: { - d->currInputString = TQString::null; - TQIconViewItem *item; - selectCurrent = FALSE; - Direction dir = DirRight; - - TQRect r( 0, d->currentItem->y(), contentsWidth(), d->currentItem->height() ); - item = findItem( dir, d->currentItem->rect().center(), r ); - - // search the row below from the right - while ( !item && r.y() < contentsHeight() ) { - r.moveBy(0, d->currentItem->height() ); - item = findItem( dir, TQPoint( 0, r.center().y() ), r ); - } - - if ( item ) { - TQIconViewItem *old = d->currentItem; - setCurrentItem( item ); - ensureItemVisible( item ); - handleItemChange( old, e->state() & ShiftButton, e->state() & ControlButton ); - } - } break; - case Qt::Key_Left: { - d->currInputString = TQString::null; - TQIconViewItem *item; - selectCurrent = FALSE; - Direction dir = DirLeft; - - TQRect r( 0, d->currentItem->y(), contentsWidth(), d->currentItem->height() ); - item = findItem( dir, d->currentItem->rect().center(), r ); - - // search the row above from the left - while ( !item && r.y() >= 0 ) { - r.moveBy(0, - d->currentItem->height() ); - item = findItem( dir, TQPoint( contentsWidth(), r.center().y() ), r ); - } - - if ( item ) { - TQIconViewItem *old = d->currentItem; - setCurrentItem( item ); - ensureItemVisible( item ); - handleItemChange( old, e->state() & ShiftButton, e->state() & ControlButton ); - } - } break; - case Qt::Key_Space: { - d->currInputString = TQString::null; - if ( d->selectionMode == Single) - break; - - d->currentItem->setSelected( !d->currentItem->isSelected(), TRUE ); - } break; - case Qt::Key_Enter: case Qt::Key_Return: - d->currInputString = TQString::null; - emit returnPressed( d->currentItem ); - break; - case Qt::Key_Down: { - d->currInputString = TQString::null; - TQIconViewItem *item; - selectCurrent = FALSE; - Direction dir = DirDown; - - TQRect r( d->currentItem->x(), 0, d->currentItem->width(), contentsHeight() ); - item = findItem( dir, d->currentItem->rect().center(), r ); - - // finding the closest item below and to the right - while ( !item && r.x() < contentsWidth() ) { - r.moveBy( r.width() , 0 ); - item = findItem( dir, TQPoint( r.center().x(), 0 ), r ); - } - - - TQIconViewItem *i = d->currentItem; - setCurrentItem( item ); - item = i; - handleItemChange( item, e->state() & ShiftButton, e->state() & ControlButton ); - } break; - case Qt::Key_Up: { - d->currInputString = TQString::null; - TQIconViewItem *item; - selectCurrent = FALSE; - Direction dir = DirUp; - - TQRect r( d->currentItem->x(), 0, d->currentItem->width(), contentsHeight() ); - item = findItem( dir, d->currentItem->rect().center(), r ); - - // finding the closest item above and to the left - while ( !item && r.x() >= 0 ) { - r.moveBy(- r.width(), 0 ); - item = findItem( dir, TQPoint(r.center().x(), contentsHeight() ), r ); - } - - TQIconViewItem *i = d->currentItem; - setCurrentItem( item ); - item = i; - handleItemChange( item, e->state() & ShiftButton, e->state() & ControlButton ); - } break; - case TQt::Key_Next: { - d->currInputString = TQString::null; - selectCurrent = FALSE; - TQRect r; - if ( d->arrangement == LeftToRight ) - r = TQRect( 0, d->currentItem->y() + visibleHeight(), contentsWidth(), visibleHeight() ); - else - r = TQRect( d->currentItem->x() + visibleWidth(), 0, visibleWidth(), contentsHeight() ); - TQIconViewItem *item = d->currentItem; - TQIconViewItem *ni = findFirstVisibleItem( r ); - if ( !ni ) { - if ( d->arrangement == LeftToRight ) - r = TQRect( 0, d->currentItem->y() + d->currentItem->height(), contentsWidth(), contentsHeight() ); - else - r = TQRect( d->currentItem->x() + d->currentItem->width(), 0, contentsWidth(), contentsHeight() ); - ni = findLastVisibleItem( r ); - } - if ( ni ) { - setCurrentItem( ni ); - handleItemChange( item, e->state() & ShiftButton, e->state() & ControlButton ); - } - } break; - case TQt::Key_Prior: { - d->currInputString = TQString::null; - selectCurrent = FALSE; - TQRect r; - if ( d->arrangement == LeftToRight ) - r = TQRect( 0, d->currentItem->y() - visibleHeight(), contentsWidth(), visibleHeight() ); - else - r = TQRect( d->currentItem->x() - visibleWidth(), 0, visibleWidth(), contentsHeight() ); - TQIconViewItem *item = d->currentItem; - TQIconViewItem *ni = findFirstVisibleItem( r ); - if ( !ni ) { - if ( d->arrangement == LeftToRight ) - r = TQRect( 0, 0, contentsWidth(), d->currentItem->y() ); - else - r = TQRect( 0, 0, d->currentItem->x(), contentsHeight() ); - ni = findFirstVisibleItem( r ); - } - if ( ni ) { - setCurrentItem( ni ); - handleItemChange( item, e->state() & ShiftButton, e->state() & ControlButton ); - } - } break; - default: - if ( !e->text().isEmpty() && e->text()[ 0 ].isPrint() ) { - selectCurrent = FALSE; - TQIconViewItem *i = d->currentItem; - if ( !i ) - i = d->firstItem; - if ( !d->inputTimer->isActive() ) { - d->currInputString = e->text(); - i = i->next; - if ( !i ) - i = d->firstItem; - i = findItemByName( i ); - } else { - d->inputTimer->stop(); - d->currInputString += e->text(); - i = findItemByName( i ); - if ( !i ) { - d->currInputString = e->text(); - if (d->currentItem && d->currentItem->next) - i = d->currentItem->next; - else - i = d->firstItem; - i = findItemByName(i); - } - } - if ( i ) { - setCurrentItem( i ); - if ( d->selectionMode == Extended ) { - bool changed = FALSE; - bool block = tqsignalsBlocked(); - blockSignals( TRUE ); - selectAll( FALSE ); - blockSignals( block ); - if ( !i->selected && i->isSelectable() ) { - changed = TRUE; - i->selected = TRUE; - repaintItem( i ); - } - if ( changed ) - emit selectionChanged(); - } - } - d->inputTimer->start( 400, TRUE ); - } else { - selectCurrent = FALSE; - d->currInputString = TQString::null; - if ( e->state() & ControlButton ) { - switch ( e->key() ) { - case Qt::Key_A: - selectAll( TRUE ); - break; - } - } - e->ignore(); - return; - } - } - - if ( !( e->state() & ShiftButton ) || !d->selectAnchor ) - d->selectAnchor = d->currentItem; - - if ( d->currentItem && !d->currentItem->isSelected() && - d->selectionMode == Single && selectCurrent ) { - d->currentItem->setSelected( TRUE ); - } - - ensureItemVisible( d->currentItem ); -} - -/* - Finds the closest item in the Direction \a dir relative from the point \a relativeTo - which intersects with the searchRect. - - The function choses the closest item with its center in the searchRect. -*/ -TQIconViewItem* TQIconView::findItem( Direction dir, - const TQPoint &relativeTo, - const TQRect &searchRect ) const -{ - TQIconViewItem *item; - TQIconViewItem *centerMatch = 0; - int centerMatchML = 0; - - // gets list of containers with potential items - TQPtrList<TQIconViewPrivate::ItemContainer>* cList = - d->findContainers( dir, relativeTo, searchRect); - - cList->first(); - while ( cList->current() && !centerMatch ) { - TQPtrList<TQIconViewItem> &list = (cList->current())->items; - for ( item = list.first(); item; item = list.next() ) { - if ( neighbourItem( dir, relativeTo, item ) && - searchRect.contains( item->rect().center() ) && - item != currentItem() ) { - int ml = (relativeTo - item->rect().center()).manhattanLength(); - if ( centerMatch ) { - if ( ml < centerMatchML ) { - centerMatch = item; - centerMatchML = ml; - } - } else { - centerMatch = item; - centerMatchML = ml; - } - } - } - cList->next(); - } - delete cList; - return centerMatch; -} - - -/* - Returns TRUE if the items orientation compared to - the point \a relativeTo is correct. -*/ -bool TQIconView::neighbourItem( Direction dir, - const TQPoint &relativeTo, - const TQIconViewItem *item ) const -{ - switch ( dir ) { - case DirUp: - if ( item->rect().center().y() < relativeTo.y() ) - return TRUE; - break; - case DirDown: - if ( item->rect().center().y() > relativeTo.y() ) - return TRUE; - break; - case DirLeft: - if ( item->rect().center().x() < relativeTo.x() ) - return TRUE; - break; - case DirRight: - if ( item->rect().center().x() > relativeTo.x() ) - return TRUE; - break; - default: - // nothing - break; - } - return FALSE; -} - -/*! - \reimp -*/ - -void TQIconView::focusInEvent( TQFocusEvent* tqfe) -{ - d->mousePressed = FALSE; - d->inMenuMode = FALSE; - if ( d->currentItem ) { - repaintItem( d->currentItem ); -#ifdef USE_QT4 - } else if ( d->firstItem && tqfe->reason() != TQFocusEvent::Mouse ) { -#else // USE_QT4 - } else if ( d->firstItem && TQFocusEvent::reason() != TQFocusEvent::Mouse ) { -#endif // USE_QT4 - d->currentItem = d->firstItem; - emit currentChanged( d->currentItem ); - repaintItem( d->currentItem ); - } - - if ( tqstyle().tqstyleHint( TQStyle::SH_ItemView_ChangeHighlightOnFocus, this ) ) - repaintSelectedItems(); - - if ( d->currentItem ) - setMicroFocusHint( d->currentItem->x(), d->currentItem->y(), d->currentItem->width(), d->currentItem->height(), FALSE ); -} - -/*! - \reimp -*/ - -void TQIconView::focusOutEvent( TQFocusEvent* tqfe ) -{ - if (tqstyle().tqstyleHint( TQStyle::SH_ItemView_ChangeHighlightOnFocus, this )) { - d->inMenuMode = -#ifdef USE_QT4 - tqfe->reason() == TQFocusEvent::Popup || -#else // USE_QT4 - TQFocusEvent::reason() == TQFocusEvent::Popup || -#endif // USE_QT4 - (tqApp->tqfocusWidget() && tqApp->tqfocusWidget()->inherits("TQMenuBar")); - if ( !d->inMenuMode ) - repaintSelectedItems(); - } - if ( d->currentItem ) - repaintItem( d->currentItem ); -} - -/*! - Draws the rubber band using the painter \a p. -*/ - -void TQIconView::drawRubber( TQPainter *p ) -{ - if ( !p || !d->rubber ) - return; - - TQPoint pnt( d->rubber->x(), d->rubber->y() ); - pnt = contentsToViewport( pnt ); - - tqstyle().tqdrawPrimitive( TQStyle::PE_RubberBand, p, - TQRect( pnt.x(), pnt.y(), d->rubber->width(), d->rubber->height() ).normalize(), - tqcolorGroup(), TQStyle::Style_Default, TQStyleOption(tqcolorGroup().base()) ); -} - -/*! - Returns the TQDragObject that should be used for drag-and-drop. - This function is called by the icon view when starting a drag to - get the dragobject that should be used for the drag. Subclasses - may reimplement this. - - \sa TQIconDrag -*/ - -#ifndef TQT_NO_DRAGANDDROP -TQDragObject *TQIconView::dragObject() -{ - if ( !d->currentItem ) - return 0; - - TQPoint orig = d->dragStartPos; - - TQIconDrag *drag = new TQIconDrag( viewport() ); - drag->setPixmap( ( d->currentItem->pixmap() ? - *d->currentItem->pixmap() : TQPixmap() ), // ### TQPicture - TQPoint( d->currentItem->pixmapRect().width() / 2, - d->currentItem->pixmapRect().height() / 2 ) ); - - if ( d->selectionMode == NoSelection ) { - TQIconViewItem *item = d->currentItem; - drag->append( TQIconDragItem(), - TQRect( item->pixmapRect( FALSE ).x() - orig.x(), - item->pixmapRect( FALSE ).y() - orig.y(), - item->pixmapRect().width(), item->pixmapRect().height() ), - TQRect( item->textRect( FALSE ).x() - orig.x(), - item->textRect( FALSE ).y() - orig.y(), - item->textRect().width(), item->textRect().height() ) ); - } else { - for ( TQIconViewItem *item = d->firstItem; item; item = item->next ) { - if ( item->isSelected() ) { - drag->append( TQIconDragItem(), - TQRect( item->pixmapRect( FALSE ).x() - orig.x(), - item->pixmapRect( FALSE ).y() - orig.y(), - item->pixmapRect().width(), item->pixmapRect().height() ), - TQRect( item->textRect( FALSE ).x() - orig.x(), - item->textRect( FALSE ).y() - orig.y(), - item->textRect().width(), item->textRect().height() ) ); - } - } - } - - return drag; -} - -/*! - Starts a drag. -*/ - -void TQIconView::startDrag() -{ - if ( !d->startDragItem ) - return; - - TQPoint orig = d->dragStartPos; - d->dragStart = TQPoint( orig.x() - d->startDragItem->x(), - orig.y() - d->startDragItem->y() ); - d->startDragItem = 0; - d->mousePressed = FALSE; - d->pressedItem = 0; - d->pressedSelected = 0; - - TQDragObject *drag = dragObject(); - if ( !drag ) - return; - - if ( drag->drag() ) - if ( drag->target() != viewport() ) - emit moved(); -} - -#endif - -/*! - Inserts the TQIconViewItem \a item in the icon view's grid. \e{You - should never need to call this function.} Instead, insert - TQIconViewItems by creating them with a pointer to the TQIconView - that they are to be inserted into. -*/ - -void TQIconView::insertInGrid( TQIconViewItem *item ) -{ - if ( !item ) - return; - - if ( d->reorderItemsWhenInsert ) { - // #### make this efficient - but it's not too dramatic - int y = d->spacing; - - item->dirty = FALSE; - if ( item == d->firstItem ) { - bool dummy; - makeRowLayout( item, y, dummy ); - return; - } - - TQIconViewItem *begin = rowBegin( item ); - y = begin->y(); - while ( begin ) { - bool dummy; - begin = makeRowLayout( begin, y, dummy ); - - if ( !begin || !begin->next ) - break; - - begin = begin->next; - } - item->dirty = FALSE; - } else { - TQRegion r( TQRect( 0, 0, TQMAX( contentsWidth(), visibleWidth() ), - TQMAX( contentsHeight(), visibleHeight() ) ) ); - - TQIconViewItem *i = d->firstItem; - int y = -1; - for ( ; i; i = i->next ) { - r = r.subtract( i->rect() ); - y = TQMAX( y, i->y() + i->height() ); - } - - TQMemArray<TQRect> rects = r.tqrects(); - TQMemArray<TQRect>::Iterator it = rects.begin(); - bool foundPlace = FALSE; - for ( ; it != rects.end(); ++it ) { - TQRect rect = *it; - if ( rect.width() >= item->width() && - rect.height() >= item->height() ) { - int sx = 0, sy = 0; - if ( rect.width() >= item->width() + d->spacing ) - sx = d->spacing; - if ( rect.height() >= item->height() + d->spacing ) - sy = d->spacing; - item->move( rect.x() + sx, rect.y() + sy ); - foundPlace = TRUE; - break; - } - } - - if ( !foundPlace ) - item->move( d->spacing, y + d->spacing ); - - resizeContents( TQMAX( contentsWidth(), item->x() + item->width() ), - TQMAX( contentsHeight(), item->y() + item->height() ) ); - item->dirty = FALSE; - } -} - -/*! - Emits a signal to indicate selection changes. \a i is the - TQIconViewItem that was selected or de-selected. - - \e{You should never need to call this function.} -*/ - -void TQIconView::emitSelectionChanged( TQIconViewItem *i ) -{ - emit selectionChanged(); - if ( d->selectionMode == Single ) - emit selectionChanged( i ? i : d->currentItem ); -} - -/*! - \internal -*/ - -void TQIconView::emitRenamed( TQIconViewItem *item ) -{ - if ( !item ) - return; - - emit itemRenamed( item, item->text() ); - emit itemRenamed( item ); -} - -/*! - If a drag enters the icon view the tqshapes of the objects which the - drag contains are drawn, usnig \a pos as origin. -*/ - -void TQIconView::drawDragShapes( const TQPoint &pos ) -{ -#ifndef TQT_NO_DRAGANDDROP - if ( pos == TQPoint( -1, -1 ) ) - return; - - if ( !d->drawDragShapes ) { - d->drawDragShapes = TRUE; - return; - } - - TQStyleOption opt(tqcolorGroup().base()); - - TQPainter p; - p.begin( viewport() ); - p.translate( -contentsX(), -contentsY() ); - p.setRasterOp( TQt::NotROP ); - p.setPen( TQPen( Qt::color0 ) ); - - if ( d->isIconDrag ) { - TQValueList<TQIconDragDataItem>::Iterator it = d->iconDragData.begin(); - for ( ; it != d->iconDragData.end(); ++it ) { - TQRect ir = (*it).item.pixmapRect(); - TQRect tr = (*it).item.textRect(); - tr.moveBy( pos.x(), pos.y() ); - ir.moveBy( pos.x(), pos.y() ); - if ( !ir.intersects( TQRect( contentsX(), contentsY(), visibleWidth(), visibleHeight() ) ) ) - continue; - - tqstyle().tqdrawPrimitive(TQStyle::PE_FocusRect, &p, ir, tqcolorGroup(), - TQStyle::Style_Default, opt); - tqstyle().tqdrawPrimitive(TQStyle::PE_FocusRect, &p, tr, tqcolorGroup(), - TQStyle::Style_Default, opt); - } - } else if ( d->numDragItems > 0 ) { - for ( int i = 0; i < d->numDragItems; ++i ) { - TQRect r( pos.x() + i * 40, pos.y(), 35, 35 ); - tqstyle().tqdrawPrimitive(TQStyle::PE_FocusRect, &p, r, tqcolorGroup(), - TQStyle::Style_Default, opt); - } - - } - p.end(); -#endif -} - -/*! - When a drag enters the icon view, this function is called to - initialize it. Initializing in this context means getting - information about the drag, for example so that the icon view - knows enough about the drag to be able to draw drag tqshapes for the - drag data (e.g. tqshapes of icons which are dragged), etc. -*/ - -#ifndef TQT_NO_DRAGANDDROP -void TQIconView::initDragEnter( TQDropEvent *e ) -{ - if ( TQIconDrag::canDecode( e ) ) { - TQIconDragPrivate::decode( e, d->iconDragData ); - d->isIconDrag = TRUE; - } else if ( TQUriDrag::canDecode( e ) ) { - TQStrList lst; - TQUriDrag::decode( e, lst ); - d->numDragItems = lst.count(); - } else { - d->numDragItems = 0; - } - -} -#endif - -/*! - This function is called to draw the rectangle \a r of the - background using the painter \a p. - - The default implementation fills \a r with the viewport's - backgroundBrush(). Subclasses may reimplement this to draw custom - backgrounds. - - \sa contentsX() contentsY() drawContents() -*/ - -void TQIconView::drawBackground( TQPainter *p, const TQRect &r ) -{ - p->fillRect( r, viewport()->backgroundBrush() ); -} - -/*! - \reimp -*/ - -bool TQIconView::eventFilter( TQObject * o, TQEvent * e ) -{ - if ( TQT_BASE_OBJECT(o) == TQT_BASE_OBJECT(viewport()) ) { - switch( e->type() ) { - case TQEvent::FocusIn: - focusInEvent( (TQFocusEvent*)e ); - return TRUE; - case TQEvent::FocusOut: - focusOutEvent( (TQFocusEvent*)e ); - return TRUE; - case TQEvent::Enter: - enterEvent( e ); - return TRUE; - case TQEvent::Paint: - if ( TQT_BASE_OBJECT(o) == TQT_BASE_OBJECT(viewport()) ) { - if ( d->dragging ) { - if ( !d->rubber ) - drawDragShapes( d->oldDragPos ); - } - viewportPaintEvent( (TQPaintEvent*)e ); - if ( d->dragging ) { - if ( !d->rubber ) - drawDragShapes( d->oldDragPos ); - } - } - return TRUE; - default: - // nothing - break; - } - } - - return TQScrollView::eventFilter( o, e ); -} - - -/*! - \reimp -*/ - -TQSize TQIconView::tqminimumSizeHint() const -{ - return TQScrollView::tqminimumSizeHint(); -} - -/*! - \internal - Finds the next item after the start item beginning - with \a text. -*/ - -TQIconViewItem* TQIconView::findItemByName( TQIconViewItem *start ) -{ - if ( !start ) - return 0; - TQString match = d->currInputString.lower(); - if ( match.length() < 1 ) - return start; - TQString curText; - TQIconViewItem *i = start; - do { - curText = i->text().lower(); - if ( curText.startsWith( match ) ) - return i; - i = i->next; - if ( !i ) - i = d->firstItem; - } while ( i != start ); - return 0; -} - -/*! - Lays out a row of icons (if Arrangement == \c TopToBottom this is - a column). Starts laying out with the item \a begin. \a y is the - starting coordinate. Returns the last item of the row (column) and - sets the new starting coordinate to \a y. The \a changed parameter - is used internally. - - \warning This function may be made private in a future version of - TQt. We do not recommend calling it. -*/ - -TQIconViewItem *TQIconView::makeRowLayout( TQIconViewItem *begin, int &y, bool &changed ) -{ - TQIconViewItem *end = 0; - - bool reverse = TQApplication::reverseLayout(); - changed = FALSE; - - if ( d->arrangement == LeftToRight ) { - - if ( d->rastX == -1 ) { - // first calculate the row height - int h = 0; - int x = 0; - int ih = 0; - TQIconViewItem *item = begin; - for (;;) { - x += d->spacing + item->width(); - if ( x > visibleWidth() && item != begin ) { - item = item->prev; - break; - } - h = TQMAX( h, item->height() ); - ih = TQMAX( ih, item->pixmapRect().height() ); - TQIconViewItem *old = item; - item = item->next; - if ( !item ) { - item = old; - break; - } - } - end = item; - - if ( d->rastY != -1 ) - h = TQMAX( h, d->rastY ); - - // now move the items - item = begin; - for (;;) { - item->dirty = FALSE; - int x; - if ( item == begin ) { - if ( reverse ) - x = visibleWidth() - d->spacing - item->width(); - else - x = d->spacing; - } else { - if ( reverse ) - x = item->prev->x() - item->width() - d->spacing; - else - x = item->prev->x() + item->prev->width() + d->spacing; - } - changed = item->move( x, y + ih - item->pixmapRect().height() ) || changed; - if ( y + h < item->y() + item->height() ) - h = TQMAX( h, ih + item->textRect().height() ); - if ( item == end ) - break; - item = item->next; - } - y += h + d->spacing; - } else { - // first calculate the row height - int h = begin->height(); - int x = d->spacing; - int ih = begin->pixmapRect().height(); - TQIconViewItem *item = begin; - int i = 0; - int sp = 0; - for (;;) { - int r = calcGridNum( item->width(), d->rastX ); - if ( item == begin ) { - i += r; - sp += r; - x = d->spacing + d->rastX * r; - } else { - sp += r; - i += r; - x = i * d->rastX + sp * d->spacing; - } - if ( x > visibleWidth() && item != begin ) { - item = item->prev; - break; - } - h = TQMAX( h, item->height() ); - ih = TQMAX( ih, item->pixmapRect().height() ); - TQIconViewItem *old = item; - item = item->next; - if ( !item ) { - item = old; - break; - } - } - end = item; - - if ( d->rastY != -1 ) - h = TQMAX( h, d->rastY ); - - // now move the items - item = begin; - i = 0; - sp = 0; - for (;;) { - item->dirty = FALSE; - int r = calcGridNum( item->width(), d->rastX ); - if ( item == begin ) { - if ( d->itemTextPos == Bottom ) - changed = item->move( d->spacing + ( r * d->rastX - item->width() ) / 2, - y + ih - item->pixmapRect().height() ) || changed; - else - changed = item->move( d->spacing, y + ih - item->pixmapRect().height() ) || changed; - i += r; - sp += r; - } else { - sp += r; - int x = i * d->rastX + sp * d->spacing; - if ( d->itemTextPos == Bottom ) - changed = item->move( x + ( r * d->rastX - item->width() ) / 2, - y + ih - item->pixmapRect().height() ) || changed; - else - changed = item->move( x, y + ih - item->pixmapRect().height() ) || changed; - i += r; - } - if ( y + h < item->y() + item->height() ) - h = TQMAX( h, ih + item->textRect().height() ); - if ( item == end ) - break; - item = item->next; - } - y += h + d->spacing; - } - - - } else { // -------------------------------- SOUTH ------------------------------ - - int x = y; - - { - int w = 0; - int y = 0; - TQIconViewItem *item = begin; - for (;;) { - y += d->spacing + item->height(); - if ( y > visibleHeight() && item != begin ) { - item = item->prev; - break; - } - w = TQMAX( w, item->width() ); - TQIconViewItem *old = item; - item = item->next; - if ( !item ) { - item = old; - break; - } - } - end = item; - - if ( d->rastX != -1 ) - w = TQMAX( w, d->rastX ); - - // now move the items - item = begin; - for (;;) { - item->dirty = FALSE; - if ( d->itemTextPos == Bottom ) { - if ( item == begin ) - changed = item->move( x + ( w - item->width() ) / 2, d->spacing ) || changed; - else - changed = item->move( x + ( w - item->width() ) / 2, - item->prev->y() + item->prev->height() + d->spacing ) || changed; - } else { - if ( item == begin ) - changed = item->move( x, d->spacing ) || changed; - else - changed = item->move( x, item->prev->y() + item->prev->height() + d->spacing ) || changed; - } - if ( item == end ) - break; - item = item->next; - } - x += w + d->spacing; - } - - y = x; - } - - return end; -} - -/*! - \internal - Calculates how many cells an item of width \a w needs in a grid with of - \a x and returns the result. -*/ - -int TQIconView::calcGridNum( int w, int x ) const -{ - float r = (float)w / (float)x; - if ( ( w / x ) * x != w ) - r += 1.0; - return (int)r; -} - -/*! - \internal - Returns the first item of the row which contains \a item. -*/ - -TQIconViewItem *TQIconView::rowBegin( TQIconViewItem * ) const -{ - // #### todo - return d->firstItem; -} - -/*! - Sorts and rearranges all the items in the icon view. If \a - ascending is TRUE, the items are sorted in increasing order, - otherwise they are sorted in decreasing order. - - TQIconViewItem::compare() is used to compare pairs of items. The - sorting is based on the items' keys; these default to the items' - text unless specifically set to something else. - - Note that this function sets the sort order to \a ascending. - - \sa TQIconViewItem::key(), TQIconViewItem::setKey(), - TQIconViewItem::compare(), TQIconView::setSorting(), - TQIconView::sortDirection() -*/ - -void TQIconView::sort( bool ascending ) -{ - if ( count() == 0 ) - return; - - d->sortDirection = ascending; - TQIconViewPrivate::SortableItem *items = new TQIconViewPrivate::SortableItem[ count() ]; - - TQIconViewItem *item = d->firstItem; - int i = 0; - for ( ; item; item = item->next ) - items[ i++ ].item = item; - - qsort( items, count(), sizeof( TQIconViewPrivate::SortableItem ), cmpIconViewItems ); - - TQIconViewItem *prev = 0; - item = 0; - if ( ascending ) { - for ( i = 0; i < (int)count(); ++i ) { - item = items[ i ].item; - if ( item ) { - item->prev = prev; - if ( item->prev ) - item->prev->next = item; - item->next = 0; - } - if ( i == 0 ) - d->firstItem = item; - if ( i == (int)count() - 1 ) - d->lastItem = item; - prev = item; - } - } else { - for ( i = (int)count() - 1; i >= 0 ; --i ) { - item = items[ i ].item; - if ( item ) { - item->prev = prev; - if ( item->prev ) - item->prev->next = item; - item->next = 0; - } - if ( i == (int)count() - 1 ) - d->firstItem = item; - if ( i == 0 ) - d->lastItem = item; - prev = item; - } - } - - delete [] items; - - arrangeItemsInGrid( TRUE ); -} - -/*! - \reimp -*/ - -TQSize TQIconView::tqsizeHint() const -{ - constPolish(); - - if ( !d->firstItem ) - return TQScrollView::tqsizeHint(); - - if ( d->dirty && d->firstSizeHint ) { - ( (TQIconView*)this )->resizeContents( TQMAX( 400, contentsWidth() ), - TQMAX( 400, contentsHeight() ) ); - if ( autoArrange() ) - ( (TQIconView*)this )->arrangeItemsInGrid( FALSE ); - d->firstSizeHint = FALSE; - } - - d->dirty = TRUE; // ######## warwick: I'm sure this is wrong. Fixed in 2.3. - int extra = tqstyle().tqpixelMetric(TQStyle::PM_ScrollBarExtent, - verticalScrollBar()) + 2*frameWidth(); - TQSize s( TQMIN(400, contentsWidth() + extra), - TQMIN(400, contentsHeight() + extra) ); - return s; -} - -/*! - \internal -*/ - -void TQIconView::updateContents() -{ - viewport()->update(); -} - -/*! - \reimp -*/ - -void TQIconView::enterEvent( TQEvent *e ) -{ - TQScrollView::enterEvent( e ); - emit onViewport(); -} - -/*! - \internal - This function is always called when the tqgeometry of an item changes. - This function moves the item into the correct area in the internal - data structure. -*/ - -void TQIconView::updateItemContainer( TQIconViewItem *item ) -{ - if ( !item || d->containerUpdateLocked || (!isVisible() && autoArrange()) ) - return; - - if ( item->d->container1 && d->firstContainer ) { - //Special-case to check if we can use removeLast otherwise use removeRef (slower) - if (item->d->container1->items.last() == item) - item->d->container1->items.removeLast(); - else - item->d->container1->items.removeRef( item ); - } - item->d->container1 = 0; - if ( item->d->container2 && d->firstContainer ) { - //Special-case to check if we can use removeLast otherwise use removeRef (slower) - if (item->d->container2->items.last() == item) - item->d->container2->items.removeLast(); - else - item->d->container2->items.removeRef( item ); - } - item->d->container2 = 0; - - TQIconViewPrivate::ItemContainer *c = d->firstContainer; - if ( !c ) { - appendItemContainer(); - c = d->firstContainer; - } - - const TQRect irect = item->rect(); - bool contains = FALSE; - for (;;) { - if ( c->rect.intersects( irect ) ) { - contains = c->rect.contains( irect ); - break; - } - - c = c->n; - if ( !c ) { - appendItemContainer(); - c = d->lastContainer; - } - } - - if ( !c ) { -#if defined(TQT_CHECK_RANGE) - qWarning( "TQIconViewItem::updateItemContainer(): No fitting container found!" ); -#endif - return; - } - - if (item->isVisible()) { - c->items.append( item ); - item->d->container1 = c; - - if ( !contains ) { - c = c->n; - if ( !c ) { - appendItemContainer(); - c = d->lastContainer; - } - c->items.append( item ); - item->d->container2 = c; - } - } - if ( contentsWidth() < irect.right() || contentsHeight() < irect.bottom() ) - resizeContents( TQMAX( contentsWidth(), irect.right() ), TQMAX( contentsHeight(), irect.bottom() ) ); -} - -/*! - \internal - Appends a new rect area to the internal data structure of the items. -*/ - -void TQIconView::appendItemContainer() -{ - TQSize s; - // #### We have to find out which value is best here - if ( d->arrangement == LeftToRight ) - s = TQSize( INT_MAX - 1, RECT_EXTENSION ); - else - s = TQSize( RECT_EXTENSION, INT_MAX - 1 ); - - if ( !d->firstContainer ) { - d->firstContainer = new TQIconViewPrivate::ItemContainer( 0, 0, TQRect( TQPoint( 0, 0 ), s ) ); - d->lastContainer = d->firstContainer; - } else { - if ( d->arrangement == LeftToRight ) - d->lastContainer = new TQIconViewPrivate::ItemContainer( - d->lastContainer, 0, TQRect( d->lastContainer->rect.bottomLeft(), s ) ); - else - d->lastContainer = new TQIconViewPrivate::ItemContainer( - d->lastContainer, 0, TQRect( d->lastContainer->rect.topRight(), s ) ); - } -} - -/*! \internal - - Rebuilds the whole internal data structure. This is done when it's - likely that most/all items change their tqgeometry (e.g. in - arrangeItemsInGrid()), because calling this is then more efficient - than calling updateItemContainer() for each item. -*/ - -void TQIconView::rebuildContainers() -{ - TQIconViewPrivate::ItemContainer *c = d->firstContainer, *tmpc; - while ( c ) { - tmpc = c->n; - delete c; - c = tmpc; - } - d->firstContainer = d->lastContainer = 0; - - TQIconViewItem *item = d->firstItem; - appendItemContainer(); - c = d->lastContainer; - while ( item ) { - if (item->isVisible()) { - if ( c->rect.contains( item->rect() ) ) { - item->d->container1 = c; - item->d->container2 = 0; - c->items.append( item ); - item = item->next; - } else if ( c->rect.intersects( item->rect() ) ) { - item->d->container1 = c; - c->items.append( item ); - c = c->n; - if ( !c ) { - appendItemContainer(); - c = d->lastContainer; - } - c->items.append( item ); - item->d->container2 = c; - item = item->next; - c = c->p; - } else { - if ( d->arrangement == LeftToRight ) { - if ( item->y() < c->rect.y() && c->p ) { - c = c->p; - continue; - } - } else { - if ( item->x() < c->rect.x() && c->p ) { - c = c->p; - continue; - } - } - - c = c->n; - if ( !c ) { - appendItemContainer(); - c = d->lastContainer; - } - } - } - } -} - -/*! - \internal -*/ - -void TQIconView::movedContents( int, int ) -{ - if ( d->drawDragShapes ) { - drawDragShapes( d->oldDragPos ); - d->oldDragPos = TQPoint( -1, -1 ); - } -} - -void TQIconView::handleItemChange( TQIconViewItem *old, bool shift, - bool control, bool homeend ) -{ - if ( d->selectionMode == Single ) { - bool block = tqsignalsBlocked(); - blockSignals( TRUE ); - if ( old ) - old->setSelected( FALSE ); - blockSignals( block ); - d->currentItem->setSelected( TRUE, TRUE ); - } else if ( d->selectionMode == Extended ) { - if ( shift ) { - if ( !d->selectAnchor ) { - if ( old && !old->selected && old->isSelectable() ) { - old->selected = TRUE; - repaintItem( old ); - } - d->currentItem->setSelected( TRUE, TRUE ); - } else { - TQIconViewItem *from = d->selectAnchor, *to = d->currentItem; - if ( !from || !to ) - return; - - // checking if it's downwards and if we span rows - bool downwards = FALSE; - bool spanning = FALSE; - if ( d->arrangement == LeftToRight) { - if ( from->rect().center().y() < to->rect().center().y() ) - downwards = TRUE; - } else { - if ( from->rect().center().x() < to->rect().center().x() ) - downwards = TRUE; - } - - TQRect fr = from->rect(); - TQRect tr = to->rect(); - if ( d->arrangement == LeftToRight ) { - fr.moveTopLeft( TQPoint( tr.x(), fr.y() ) ); - if ( !tr.intersects( fr ) ) - spanning = TRUE; - } else { - fr.moveTopLeft( TQPoint( fr.x(), tr.y() ) ); - if ( !tr.intersects( fr ) ) - spanning = TRUE; - } - - - // finding the rectangles - TQRect topRect, bottomRect, midRect; - if ( !spanning ) { - midRect = from->rect().unite( to->rect() ); - } else { - if ( downwards ) { - topRect = from->rect(); - bottomRect = to->rect(); - } else { - topRect = to->rect(); - bottomRect = from->rect(); - } - if ( d->arrangement == LeftToRight ) { - topRect.setRight( contentsWidth() ); - bottomRect.setLeft( 0 ); - midRect.setRect( 0, topRect.bottom(), - contentsWidth(), - bottomRect.top() - topRect.bottom() ); - } else { - topRect.setBottom( contentsHeight() ); - bottomRect.setTop( 0 ); - midRect.setRect( topRect.right(), - 0, - bottomRect.left() - topRect.right(), - contentsHeight() ); - } - } - - // finding contained items and selecting them - TQIconViewItem *item = 0; - bool changed = FALSE; - bool midValid = midRect.isValid(); - bool topValid = topRect.isValid(); - bool bottomValid = bottomRect.isValid(); - TQRect selectedRect, unselectedRect; - for ( item = d->firstItem; item; item = item->next ) { - bool contained = FALSE; - TQPoint itemCenter = item->rect().center(); - if ( midValid && midRect.contains( itemCenter ) ) - contained = TRUE; - if ( !contained && topValid && topRect.contains( itemCenter ) ) - contained = TRUE; - if ( !contained && bottomValid && bottomRect.contains( itemCenter ) ) - contained = TRUE; - - if ( contained ) { - if ( !item->selected && item->isSelectable() ) { - changed = TRUE; - item->selected = TRUE; - selectedRect = selectedRect.unite( item->rect() ); - } - } else if ( item->selected && !control ) { - item->selected = FALSE; - unselectedRect = unselectedRect.unite( item->rect() ); - changed = TRUE; - } - } - - TQRect viewRect( contentsX(), contentsY(), - visibleWidth(), visibleHeight() ); - - if ( viewRect.intersects( selectedRect ) ) { - if ( homeend ) - TQScrollView::updateContents( viewRect.intersect( selectedRect ) ); - else - repaintContents( viewRect.intersect( selectedRect ) ); - } - if ( viewRect.intersects( unselectedRect ) ) { - if ( homeend ) - TQScrollView::updateContents( viewRect.intersect( unselectedRect ) ); - else - repaintContents( viewRect.intersect( unselectedRect ) ); - } - - if ( changed ) - emit selectionChanged(); - } - } else if ( !control ) { - blockSignals( TRUE ); - selectAll( FALSE ); - blockSignals( FALSE ); - d->currentItem->setSelected( TRUE, TRUE ); - } - } else { - if ( shift ) - d->currentItem->setSelected( !d->currentItem->isSelected(), TRUE ); - } -} - -TQBitmap TQIconView::mask( TQPixmap *pix ) const -{ - TQPixmap m; - if ( d->maskCache.find( TQT_TQSTRING(TQString::number( pix->serialNumber() )), m ) ) - return TQBitmap(m); - m = pix->createHeuristicMask(); - d->maskCache.insert( TQString::number( pix->serialNumber() ), m ); - return TQBitmap(m); -} - -/*! - \reimp - \internal - - (Implemented to get rid of a compiler warning.) -*/ -void TQIconView::drawContents( TQPainter * ) -{ -} - -/*! - \reimp -*/ -void TQIconView::windowActivationChange( bool oldActive ) -{ - if ( oldActive && d->scrollTimer ) - d->scrollTimer->stop(); - - if ( !isVisible() ) - return; - - if ( tqpalette().active() == tqpalette().inactive() ) - return; - - repaintSelectedItems(); -} - -/*! - Returns TRUE if an iconview item is being renamed; otherwise - returns FALSE. -*/ - -bool TQIconView::isRenaming() const -{ -#ifndef TQT_NO_TEXTEDIT - return d->renamingItem && d->renamingItem->renameBox; -#else - return FALSE; -#endif -} - -#endif // TQT_NO_ICONVIEW |