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Diffstat (limited to 'tqtinterface/qt4/src/widgets/tqtabbar.cpp')
| -rw-r--r-- | tqtinterface/qt4/src/widgets/tqtabbar.cpp | 1368 |
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diff --git a/tqtinterface/qt4/src/widgets/tqtabbar.cpp b/tqtinterface/qt4/src/widgets/tqtabbar.cpp deleted file mode 100644 index bcbd41a..0000000 --- a/tqtinterface/qt4/src/widgets/tqtabbar.cpp +++ /dev/null @@ -1,1368 +0,0 @@ -/**************************************************************************** -** -** Implementation of TQTab and TQTabBar classes -** -** Copyright (C) 2010 Timothy Pearson and (C) 1992-2008 Trolltech ASA. -** -** This file is part of the widgets 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 "tqtabbar.h" -#ifndef TQT_NO_TABBAR -#include "tqaccel.h" -#include "tqbitmap.h" -#include "tqtoolbutton.h" -#include "tqtooltip.h" -#include "tqapplication.h" -#include "tqstyle.h" -#include "tqpainter.h" -#include "tqiconset.h" -#include "tqcursor.h" -#include "../kernel/tqinternal_p.h" -#if defined(TQT_ACCESSIBILITY_SUPPORT) -#include "tqaccessible.h" -#endif - -#ifdef TQ_WS_MACX -#include <tqmacstyle_mac.h> -#endif - - -/*! - \class TQTab tqtabbar.h - \brief The TQTab class provides the structures in a TQTabBar. - - \ingroup advanced - - This class is used for custom TQTabBar tab headings. - - \sa TQTabBar -*/ - - -/*! - Constructs an empty tab. All fields are set to empty. -*/ - -TQTab::TQTab() - : enabled( TRUE ), - id ( 0 ), - iconset( 0 ), - tb( 0 ) -{ -} - -/*! - Constructs a tab with the text \a text. -*/ - -TQTab::TQTab( const TQString &text ) - : label( text ), - enabled( TRUE ), - id( 0 ), - iconset( 0 ), - tb( 0 ) -{ -} - -/*! - Constructs a tab with an \a icon and the text, \a text. -*/ - -TQTab::TQTab( const TQIconSet& icon, const TQString& text ) - : label( text ), - enabled( TRUE ), - id( 0 ), - iconset( new TQIconSet(icon) ), - tb( 0 ) -{ -} - -/*! - \fn TQString TQTab::text() const - - Returns the text of the TQTab label. -*/ - -/*! - \fn TQIconSet TQTab::iconSet() const - - Return the TQIconSet of the TQTab. -*/ - -/*! - \fn void TQTab::setRect( const TQRect &rect ) - - Set the TQTab TQRect to \a rect. -*/ - -/*! - \fn TQRect TQTab::rect() const - - Return the TQRect for the TQTab. -*/ - -/*! - \fn void TQTab::setEnabled( bool enable ) - - If \a enable is TRUE enable the TQTab, otherwise disable it. -*/ - -/*! - \fn bool TQTab::isEnabled() const - - Returns TRUE if the TQTab is enabled; otherwise returns FALSE. -*/ - -/*! - \fn void TQTab::setIdentifier( int i ) - - Set the identifier for the TQTab to \a i. Each TQTab's identifier - within a TQTabBar must be unique. -*/ - -/*! - \fn int TQTab::identifier() const - - Return the TQTab's identifier. -*/ - - - -/*! - Destroys the tab and frees up all allocated resources. -*/ - -TQTab::~TQTab() -{ - delete iconset; - tb = 0; -} - -/*! - \class TQTabBar tqtabbar.h - \brief The TQTabBar class provides a tab bar, e.g. for use in tabbed dialogs. - - \ingroup advanced - - TQTabBar is straightforward to use; it draws the tabs using one of - the predefined \link TQTabBar::Shape tqshapes\endlink, and emits a - signal when a tab is selected. It can be subclassed to tailor the - look and feel. TQt also provides a ready-made \l{TQTabWidget} and a - \l{TQTabDialog}. - - The choice of tab tqshape is a matter of taste, although tab dialogs - (for preferences and similar) invariably use \c RoundedAbove; - nobody uses \c TriangularAbove. Tab controls in windows other than - dialogs almost always use either \c RoundedBelow or \c - TriangularBelow. Many spreadsheets and other tab controls in which - all the pages are essentially similar use \c TriangularBelow, - whereas \c RoundedBelow is used mostly when the pages are - different (e.g. a multi-page tool palette). - - The most important part of TQTabBar's API is the selected() signal. - This is emitted whenever the selected page changes (even at - startup, when the selected page changes from 'none'). There is - also a slot, setCurrentTab(), which can be used to select a page - programmatically. - - TQTabBar creates automatic accelerator keys in the manner of - TQButton; e.g. if a tab's label is "\&Graphics", Alt+G becomes an - accelerator key for switching to that tab. - - The following virtual functions may need to be reimplemented: - \list - \i paint() paints a single tab. paintEvent() calls paint() for - each tab so that any overlap will look right. - \i addTab() creates a new tab and adds it to the bar. - \i selectTab() decides which tab, if any, the user selects with the mouse. - \endlist - - The index of the current tab is returned by currentTab(). The tab - with a particular index is returned by tabAt(), the tab with a - particular id is returned by tab(). The index of a tab is returned - by indexOf(). The current tab can be set by index or tab pointer - using one of the setCurrentTab() functions. - - <img src=qtabbar-m.png> <img src=qtabbar-w.png> -*/ - -/*! - \enum TQTabBar::Shape - - This enum type lists the built-in tqshapes supported by TQTabBar: - - \value RoundedAbove the normal rounded look above the pages - - \value RoundedBelow the normal rounded look below the pages - - \value TriangularAbove triangular tabs above the pages (very - unusual; included for completeness) - - \value TriangularBelow triangular tabs similar to those used in - the Excel spreadsheet, for example -*/ - -class TQTabBarToolTip; - -struct TQTabPrivate { - int id; - int focus; -#ifndef TQT_NO_ACCEL - TQAccel * a; -#endif - TQTab *pressed; - TQTabBar::Shape s; - TQToolButton* rightB; - TQToolButton* leftB; - int btnWidth; - bool scrolls; - TQTabBarToolTip * toolTips; -}; - -#ifndef TQT_NO_TOOLTIP -/* \internal -*/ -class TQTabBarToolTip : public TQToolTip -{ -public: - TQTabBarToolTip( TQWidget * parent ) - : TQToolTip( parent ) {} - virtual ~TQTabBarToolTip() {} - - void add( TQTab * tab, const TQString & tip ) - { - tabTips.replace( tab, tip ); - } - - void remove( TQTab * tab ) - { - tabTips.erase( tab ); - } - - TQString tipForTab( TQTab * tab ) const - { - TQMapConstIterator<TQTab *, TQString> it; - it = tabTips.find( tab ); - if ( it != tabTips.end() ) - return it.data(); - else - return TQString(); - } - -protected: - void maybeTip( const TQPoint & p ) - { - TQTabBar * tb = (TQTabBar *) parentWidget(); - if ( !tb ) - return; - - // check if the scroll buttons in the tab bar are visible - - // don't display any tips if the pointer is over one of them - TQRect rectL, rectR; - rectL.setRect( tb->d->leftB->x(), tb->d->leftB->y(), - tb->d->leftB->width(), tb->d->leftB->height() ); - rectR.setRect( tb->d->rightB->x(), tb->d->rightB->y(), - tb->d->rightB->width(), tb->d->rightB->height() ); - if ( tb->d->scrolls && (rectL.contains( p ) || rectR.contains( p )) ) - return; - -#ifndef TQT_NO_TOOLTIP - // find and show the tool tip for the tab under the point p - TQMapIterator<TQTab *, TQString> it; - for ( it = tabTips.begin(); it != tabTips.end(); ++it ) { - if ( it.key()->rect().contains( p ) ) - tip( it.key()->rect(), it.data() ); - } -#endif - } - -private: - TQMap<TQTab *, TQString> tabTips; -}; -#endif - -/*! - \fn void TQTabBar::selected( int id ) - - TQTabBar emits this signal whenever any tab is selected, whether by - the program or by the user. The argument \a id is the id of the - tab as returned by addTab(). - - show() is guaranteed to emit this signal; you can display your - page in a slot connected to this signal. -*/ - -/*! - \fn void TQTabBar::layoutChanged() - - TQTabBar emits the signal whenever the tqlayout of the tab bar has - been recalculated, for example when the contents of a tab change. -*/ - -/*! - Constructs a new, empty tab bar; the \a parent and \a name - arguments are passed on to the TQWidget constructor. -*/ - -TQTabBar::TQTabBar( TQWidget * parent, const char *name ) - : TQWidget( parent, name, (WFlags)(TQt::WNoAutoErase | TQt::WNoMousePropagation) ) -{ - d = new TQTabPrivate; - d->pressed = 0; - d->id = 0; - d->focus = 0; - d->toolTips = 0; -#ifndef TQT_NO_ACCEL - d->a = new TQAccel( this, "tab accelerators" ); - connect( d->a, TQT_SIGNAL(activated(int)), this, TQT_SLOT(setCurrentTab(int)) ); - connect( d->a, TQT_SIGNAL(activatedAmbiguously(int)), this, TQT_SLOT(setCurrentTab(int)) ); -#endif - d->s = RoundedAbove; - d->scrolls = FALSE; - d->leftB = new TQToolButton( TQt::LeftArrow, this, "qt_left_btn" ); - connect( d->leftB, TQT_SIGNAL( clicked() ), this, TQT_SLOT( scrollTabs() ) ); - d->leftB->hide(); - d->rightB = new TQToolButton( TQt::RightArrow, this, "qt_right_btn" ); - connect( d->rightB, TQT_SIGNAL( clicked() ), this, TQT_SLOT( scrollTabs() ) ); - d->rightB->hide(); - d->btnWidth = tqstyle().tqpixelMetric(TQStyle::PM_TabBarScrollButtonWidth, this); - l = new TQPtrList<TQTab>; - lstatic = new TQPtrList<TQTab>; - lstatic->setAutoDelete( TRUE ); - setFocusPolicy( Qt::TabFocus ); - tqsetSizePolicy( TQSizePolicy( TQSizePolicy::Preferred, TQSizePolicy::Fixed ) ); -} - - -/*! - Destroys the tab control, freeing memory used. -*/ - -TQTabBar::~TQTabBar() -{ -#ifndef TQT_NO_TOOLTIP - if ( d->toolTips ) - delete d->toolTips; -#endif - delete d; - d = 0; - delete l; - l = 0; - delete lstatic; - lstatic = 0; -} - - -/*! - Adds the tab, \a newTab, to the tab control. - - Sets \a newTab's id to a new id and places the tab just to the - right of the existing tabs. If the tab's label contains an - ampersand, the letter following the ampersand is used as an - accelerator for the tab, e.g. if the label is "Bro\&wse" then - Alt+W becomes an accelerator which will move the focus to this - tab. Returns the id. - - \sa insertTab() -*/ - -int TQTabBar::addTab( TQTab * newTab ) -{ - return insertTab( newTab ); -} - - -/*! - Inserts the tab, \a newTab, into the tab control. - - If \a index is not specified, the tab is simply appended. - Otherwise it's inserted at the specified position. - - Sets \a newTab's id to a new id. If the tab's label contains an - ampersand, the letter following the ampersand is used as an - accelerator for the tab, e.g. if the label is "Bro\&wse" then - Alt+W becomes an accelerator which will move the focus to this - tab. Returns the id. - - \sa addTab() -*/ - -int TQTabBar::insertTab( TQTab * newTab, int index ) -{ - newTab->id = d->id++; - if ( !tab( d->focus ) ) - d->focus = newTab->id; - - newTab->setTabBar( this ); - l->insert( 0, newTab ); - if ( index < 0 || index > int(lstatic->count()) ) - lstatic->append( newTab ); - else - lstatic->insert( index, newTab ); - - layoutTabs(); - updateArrowButtons(); - makeVisible( tab( currentTab() ) ); - -#ifndef TQT_NO_ACCEL - int p = TQAccel::shortcutKey( newTab->label ); - if ( p ) - d->a->insertItem( p, newTab->id ); -#endif - - return newTab->id; -} - - -/*! - Removes tab \a t from the tab control, and deletes the tab. -*/ -void TQTabBar::removeTab( TQTab * t ) -{ - //#### accelerator labels?? -#ifndef TQT_NO_TOOLTIP - if ( d->toolTips ) - d->toolTips->remove( t ); -#endif -#ifndef TQT_NO_ACCEL - if ( d->a ) - d->a->removeItem( t->id ); -#endif - bool updateFocus = t->id == d->focus; - // remove the TabBar Reference - if(d->pressed == t) - d->pressed = 0; - t->setTabBar( 0 ); - l->remove( t ); - lstatic->remove( t ); - layoutTabs(); - updateArrowButtons(); - makeVisible( tab( currentTab() ) ); - if ( updateFocus ) - d->focus = currentTab(); - update(); -} - - -/*! - Enables tab \a id if \a enabled is TRUE or disables it if \a - enabled is FALSE. If \a id is currently selected, - setTabEnabled(FALSE) makes another tab selected. - - setTabEnabled() updates the display if this causes a change in \a - id's status. - - \sa update(), isTabEnabled() -*/ - -void TQTabBar::setTabEnabled( int id, bool enabled ) -{ - TQTab * t; - for( t = l->first(); t; t = l->next() ) { - if ( t && t->id == id ) { - if ( t->enabled != enabled ) { - t->enabled = enabled; -#ifndef TQT_NO_ACCEL - d->a->setItemEnabled( t->id, enabled ); -#endif - TQRect r( t->r ); - if ( !enabled && id == currentTab() ) { - TQPoint p1( t->r.center() ), p2; - int m = 2147483647; - int distance; - // look for the closest enabled tab - measure the - // distance between the centers of the two tabs - for( TQTab * n = l->first(); n; n = l->next() ) { - if ( n->enabled ) { - p2 = n->r.center(); - distance = (p2.x() - p1.x())*(p2.x() - p1.x()) + - (p2.y() - p1.y())*(p2.y() - p1.y()); - if ( distance < m ) { - t = n; - m = distance; - } - } - } - if ( t->enabled ) { - r = r.unite( t->r ); - l->append( l->take( l->findRef( t ) ) ); - emit selected( t->id ); - } - } - tqrepaint( r, FALSE ); - } - return; - } - } -} - - -/*! - Returns TRUE if the tab with id \a id exists and is enabled; - otherwise returns FALSE. - - \sa setTabEnabled() -*/ - -bool TQTabBar::isTabEnabled( int id ) const -{ - TQTab * t = tab( id ); - if ( t ) - return t->enabled; - return FALSE; -} - - - -/*! - \reimp -*/ -TQSize TQTabBar::tqsizeHint() const -{ - TQSize sz(0, 0); - if ( TQTab * t = l->first() ) { - TQRect r( t->r ); - while ( (t = l->next()) != 0 ) - r = r.unite( t->r ); - sz = r.size(); - } - return sz.expandedTo(TQApplication::globalStrut()); -} - -/*! - \reimp -*/ - -TQSize TQTabBar::tqminimumSizeHint() const -{ - if(tqstyle().tqstyleHint( TQStyle::SH_TabBar_PreferNoArrows, this )) - return tqsizeHint(); - return TQSize( d->rightB->tqsizeHint().width() * 2 + 75, tqsizeHint().height() ); -} - -/*! - Paints the tab \a t using painter \a p. If and only if \a selected - is TRUE, \a t is drawn currently selected. - - This virtual function may be reimplemented to change the look of - TQTabBar. If you decide to reimplement it, you may also need to - reimplement tqsizeHint(). -*/ - -void TQTabBar::paint( TQPainter * p, TQTab * t, bool selected ) const -{ - TQStyle::SFlags flags = TQStyle::Style_Default; - - if (isEnabled() && t->isEnabled()) - flags |= TQStyle::Style_Enabled; - if (tqtopLevelWidget() == tqApp->activeWindow()) - flags |= TQStyle::Style_Active; - if ( selected ) - flags |= TQStyle::Style_Selected; - else if(t == d->pressed) - flags |= TQStyle::Style_Sunken; - //selection flags - if(t->rect().contains(mapFromGlobal(TQCursor::pos()))) - flags |= TQStyle::Style_MouseOver; - tqstyle().tqdrawControl( TQStyle::CE_TabBarTab, p, this, t->rect(), - tqcolorGroup(), flags, TQStyleOption(t) ); - - TQRect r( t->r ); - p->setFont( font() ); - - int iw = 0; - int ih = 0; - if ( t->iconset != 0 ) { - iw = t->iconset->pixmap( TQIconSet::Small, TQIconSet::Normal ).width() + 4; - ih = t->iconset->pixmap( TQIconSet::Small, TQIconSet::Normal ).height(); - } - TQFontMetrics fm = p->fontMetrics(); - int fw = fm.width( t->label ); - fw -= t->label.contains('&') * fm.width('&'); - fw += t->label.contains("&&") * fm.width('&'); - int w = iw + fw + 4; - int h = TQMAX(fm.height() + 4, ih ); - int offset = 3; -#ifdef TQ_WS_MAC - if (::tqqt_cast<TQMacStyle *>(&tqstyle())) - offset = 0; -#endif - paintLabel( p, TQRect( r.left() + (r.width()-w)/2 - offset, - r.top() + (r.height()-h)/2, - w, h ), t, t->id == keyboardFocusTab() ); -} - -/*! - Paints the label of tab \a t centered in rectangle \a br using - painter \a p. A focus indication is drawn if \a has_focus is TRUE. -*/ - -void TQTabBar::paintLabel( TQPainter* p, const TQRect& br, - TQTab* t, bool has_focus ) const -{ - TQRect r = br; - bool selected = currentTab() == t->id; - if ( t->iconset) { - // the tab has an iconset, draw it in the right mode - TQIconSet::Mode mode = (t->enabled && isEnabled()) - ? TQIconSet::Normal : TQIconSet::Disabled; - if ( mode == TQIconSet::Normal && has_focus ) - mode = TQIconSet::Active; - TQPixmap pixmap = t->iconset->pixmap( TQIconSet::Small, mode ); - int pixw = pixmap.width(); - int pixh = pixmap.height(); - r.setLeft( r.left() + pixw + 4 ); - r.setRight( r.right() + 2 ); - - int xoff = 0, yoff = 0; - if(!selected) { - xoff = tqstyle().tqpixelMetric(TQStyle::PM_TabBarTabShiftHorizontal, this); - yoff = tqstyle().tqpixelMetric(TQStyle::PM_TabBarTabShiftVertical, this); - } - p->drawPixmap( br.left() + 2 + xoff, br.center().y()-pixh/2 + yoff, pixmap ); - } - - TQStyle::SFlags flags = TQStyle::Style_Default; - - if (isEnabled() && t->isEnabled()) - flags |= TQStyle::Style_Enabled; - if (has_focus) - flags |= TQStyle::Style_HasFocus; - if ( selected ) - flags |= TQStyle::Style_Selected; - else if(t == d->pressed) - flags |= TQStyle::Style_Sunken; - if(t->rect().contains(mapFromGlobal(TQCursor::pos()))) - flags |= TQStyle::Style_MouseOver; - tqstyle().tqdrawControl( TQStyle::CE_TabBarLabel, p, this, r, - t->isEnabled() ? tqcolorGroup(): tqpalette().disabled(), - flags, TQStyleOption(t) ); -} - - -/*! - Repaints the tab row. All the painting is done by paint(); - paintEvent() only decides which tabs need painting and in what - order. The event is passed in \a e. - - \sa paint() -*/ - -void TQTabBar::paintEvent( TQPaintEvent * e ) -{ - if ( e->rect().isNull() ) - return; - - TQSharedDoubleBuffer buffer( this, e->rect() ); - - TQTab * t; - t = l->first(); - do { - TQTab * n = l->next(); - if ( t && t->r.intersects( e->rect() ) ) - paint( buffer.painter(), t, n == 0 ); - t = n; - } while ( t != 0 ); - - if ( d->scrolls && lstatic->first()->r.left() < 0 ) { - TQPointArray a; - int h = height(); - if ( d->s == RoundedAbove ) { - buffer.painter()->fillRect( 0, 3, 4, h-5, - tqcolorGroup().brush( TQColorGroup::Background ) ); - a.setPoints( 5, 0,2, 3,h/4, 0,h/2, 3,3*h/4, 0,h ); - } else if ( d->s == RoundedBelow ) { - buffer.painter()->fillRect( 0, 2, 4, h-5, - tqcolorGroup().brush( TQColorGroup::Background ) ); - a.setPoints( 5, 0,0, 3,h/4, 0,h/2, 3,3*h/4, 0,h-3 ); - } - - if ( !a.isEmpty() ) { - buffer.painter()->setPen( tqcolorGroup().light() ); - buffer.painter()->drawPolyline( a ); - a.translate( 1, 0 ); - buffer.painter()->setPen( tqcolorGroup().midlight() ); - buffer.painter()->drawPolyline( a ); - } - } -} - - -/*! - This virtual function is called by the mouse event handlers to - determine which tab is pressed. The default implementation returns - a pointer to the tab whose bounding rectangle contains \a p, if - exactly one tab's bounding rectangle contains \a p. Otherwise it - returns 0. - - \sa mousePressEvent() mouseReleaseEvent() -*/ - -TQTab * TQTabBar::selectTab( const TQPoint & p ) const -{ - TQTab * selected = 0; - bool moreThanOne = FALSE; - - TQPtrListIterator<TQTab> i( *l ); - while( i.current() ) { - TQTab * t = i.current(); - ++i; - - if ( t && t->r.contains( p ) ) { - if ( selected ) - moreThanOne = TRUE; - else - selected = t; - } - } - - return moreThanOne ? 0 : selected; -} - - -/*! - \reimp -*/ -void TQTabBar::mousePressEvent( TQMouseEvent * e ) -{ - if ( e->button() != Qt::LeftButton ) { - e->ignore(); - return; - } - TQTab *t = selectTab( e->pos() ); - if ( t && t->enabled ) { - d->pressed = t; - if(e->type() == tqstyle().tqstyleHint( TQStyle::SH_TabBar_SelectMouseType, this )) - setCurrentTab( t ); - else - tqrepaint(t->rect(), FALSE); - } -} - - -/*! - \reimp -*/ - -void TQTabBar::mouseMoveEvent ( TQMouseEvent *e ) -{ - if ( e->state() != Qt::LeftButton ) { - e->ignore(); - return; - } - if(tqstyle().tqstyleHint( TQStyle::SH_TabBar_SelectMouseType, this ) == TQEvent::MouseButtonRelease) { - TQTab *t = selectTab( e->pos() ); - if(t != d->pressed) { - if(d->pressed) - tqrepaint(d->pressed->rect(), FALSE); - if((d->pressed = t)) - tqrepaint(t->rect(), FALSE); - } - } -} - -/*! - \reimp -*/ - -void TQTabBar::mouseReleaseEvent( TQMouseEvent *e ) -{ - if ( e->button() != Qt::LeftButton ) - e->ignore(); - if(d->pressed) { - TQTab *t = selectTab( e->pos() ) == d->pressed ? d->pressed : 0; - d->pressed = 0; - if(t && t->enabled && e->type() == tqstyle().tqstyleHint( TQStyle::SH_TabBar_SelectMouseType, this )) - setCurrentTab( t ); - } -} - - -/*! - \reimp -*/ -void TQTabBar::show() -{ - // ensures that one tab is selected. - TQTab * t = l->last(); - TQWidget::show(); - - if ( t ) - emit selected( t->id ); -} - -/*! - \property TQTabBar::currentTab - \brief the id of the tab bar's visible tab - - If no tab page is currently visible, the property's value is -1. - Even if the property's value is not -1, you cannot assume that the - user can see the relevant page, or that the tab is enabled. When - you need to display something the value of this property - represents the best page to display. - - When this property is set to \e id, it will raise the tab with the - id \e id and emit the selected() signal. - - \sa selected() isTabEnabled() -*/ - -int TQTabBar::currentTab() const -{ - const TQTab * t = l->getLast(); - - return t ? t->id : -1; -} - -void TQTabBar::setCurrentTab( int id ) -{ - setCurrentTab( tab( id ) ); -} - - -/*! - \overload - - Raises \a tab and emits the selected() signal unless the tab was - already current. - - \sa currentTab() selected() -*/ - -void TQTabBar::setCurrentTab( TQTab * tab ) -{ - if ( tab && l ) { - if ( l->last() == tab ) - return; - - TQRect r = l->last()->r; - if ( l->findRef( tab ) >= 0 ) - l->append( l->take() ); - - d->focus = tab->id; - - setMicroFocusHint( tab->rect().x(), tab->rect().y(), tab->rect().width(), tab->rect().height(), FALSE ); - - if ( tab->r.intersects( r ) ) { - tqrepaint( r.unite( tab->r ), FALSE ); - } else { -#ifdef TQ_WS_MACX - update(); -#else - tqrepaint( r, FALSE ); - tqrepaint( tab->r, FALSE ); -#endif - } - makeVisible( tab ); - emit selected( tab->id ); - -#ifdef TQT_ACCESSIBILITY_SUPPORT - TQAccessible::updateAccessibility( this, indexOf(tab->id)+1, TQAccessible::Focus ); -#endif - } -} - -/*! - \property TQTabBar::keyboardFocusTab - \brief the id of the tab that has the keyboard focus - - This property contains the id of the tab that has the keyboard - focus or -1 if the tab bar does not have the keyboard focus. -*/ - -int TQTabBar::keyboardFocusTab() const -{ - return hasFocus() ? d->focus : -1; -} - - -/*! - \reimp -*/ -void TQTabBar::keyPressEvent( TQKeyEvent * e ) -{ - // The right and left arrow keys move a selector, the spacebar - // makes the tab with the selector active. All other keys are - // ignored. - - int old = d->focus; - - bool reverse = TQApplication::reverseLayout(); - if ( ( !reverse && e->key() == Qt::Key_Left ) || ( reverse && e->key() == Qt::Key_Right ) ) { - // left - skip past any disabled ones - if ( d->focus >= 0 ) { - TQTab * t = lstatic->last(); - while ( t && t->id != d->focus ) - t = lstatic->prev(); - do { - t = lstatic->prev(); - } while ( t && !t->enabled); - if (t) - d->focus = t->id; - } - if ( d->focus < 0 ) - d->focus = old; - } else if ( ( !reverse && e->key() == Qt::Key_Right ) || ( reverse && e->key() == Qt::Key_Left ) ) { - TQTab * t = lstatic->first(); - while ( t && t->id != d->focus ) - t = lstatic->next(); - do { - t = lstatic->next(); - } while ( t && !t->enabled); - - if (t) - d->focus = t->id; - if ( d->focus >= d->id ) - d->focus = old; - } else { - // other keys - ignore - e->ignore(); - return; - } - - // if the focus moved, tqrepaint and signal - if ( old != d->focus ) { - setCurrentTab( d->focus ); - } -} - - -/*! - Returns the tab with id \a id or 0 if there is no such tab. - - \sa count() -*/ - -TQTab * TQTabBar::tab( int id ) const -{ - TQTab * t; - for( t = l->first(); t; t = l->next() ) - if ( t && t->id == id ) - return t; - return 0; -} - - -/*! - Returns the tab at position \a index. - - \sa indexOf() -*/ - -TQTab * TQTabBar::tabAt( int index ) const -{ - TQTab * t; - t = lstatic->at( index ); - return t; -} - - -/*! - Returns the position index of the tab with id \a id or -1 if no - tab has this \a id. - - \sa tabAt() -*/ -int TQTabBar::indexOf( int id ) const -{ - TQTab * t; - int idx = 0; - for( t = lstatic->first(); t; t = lstatic->next() ) { - if ( t && t->id == id ) - return idx; - idx++; - } - return -1; -} - - -/*! - \property TQTabBar::count - \brief the number of tabs in the tab bar - - \sa tab() -*/ -int TQTabBar::count() const -{ - return l->count(); -} - - -/*! - The list of TQTab objects in the tab bar. - - This list is unlikely to be in the order that the TQTab elements - appear visually. One way of iterating over the tabs is like this: - \code - for ( uint i = 0; i < myTabBar->count(); ++i ) { - nextTab = myTabBar->tabAt( i ); - // do something with nextTab - } - \endcode -*/ -TQPtrList<TQTab> * TQTabBar::tabList() -{ - return l; -} - - -/*! - \property TQTabBar::tqshape - \brief the tqshape of the tabs in the tab bar - - The value of this property is one of the following: \c - RoundedAbove (default), \c RoundedBelow, \c TriangularAbove or \c - TriangularBelow. - - \sa Shape -*/ -TQTabBar::Shape TQTabBar::tqshape() const -{ - return d ? d->s : RoundedAbove; -} - -void TQTabBar::setShape( Shape s ) -{ - if ( !d || d->s == s ) - return; - //######### must recalculate heights - d->s = s; - update(); -} - -/*! - Lays out all existing tabs according to their label and their - iconset. - */ -void TQTabBar::layoutTabs() -{ - if ( lstatic->isEmpty() ) - return; - - TQSize oldSh(0, 0); - if ( TQTab * t = l->first() ) { - TQRect r( t->r ); - while ( (t = l->next()) != 0 ) - r = r.unite( t->r ); - oldSh = r.size(); - } - - d->btnWidth = tqstyle().tqpixelMetric(TQStyle::PM_TabBarScrollButtonWidth, this); - int hframe, vframe, overlap; - hframe = tqstyle().tqpixelMetric( TQStyle::PM_TabBarTabHSpace, this ); - vframe = tqstyle().tqpixelMetric( TQStyle::PM_TabBarTabVSpace, this ); - overlap = tqstyle().tqpixelMetric( TQStyle::PM_TabBarTabOverlap, this ); - - TQFontMetrics fm = fontMetrics(); - TQRect r; - TQTab *t; - bool reverse = TQApplication::reverseLayout(); - if ( reverse ) - t = lstatic->last(); - else - t = lstatic->first(); - int x = 0; - int offset = (t && d->scrolls) ? t->r.x() : 0; - while ( t ) { - int lw = fm.width( t->label ); - lw -= t->label.contains('&') * fm.width('&'); - lw += t->label.contains("&&") * fm.width('&'); - int iw = 0; - int ih = 0; - if ( t->iconset != 0 ) { - iw = t->iconset->pixmap( TQIconSet::Small, TQIconSet::Normal ).width() + 4; - ih = t->iconset->pixmap( TQIconSet::Small, TQIconSet::Normal ).height(); - } - int h = TQMAX( fm.height(), ih ); - h = TQMAX( h, TQApplication::globalStrut().height() ); - - h += vframe; - t->r = TQRect(TQPoint(x, 0), tqstyle().tqsizeFromContents(TQStyle::CT_TabBarTab, this, - TQSize( TQMAX( lw + hframe + iw, TQApplication::globalStrut().width() ), h ), - TQStyleOption(t) )); - x += t->r.width() - overlap; - r = r.unite( t->r ); - if ( reverse ) - t = lstatic->prev(); - else - t = lstatic->next(); - } - x += overlap; - int w = (d->scrolls) ? d->leftB->x() : width(); - if (x + offset < w) - offset = w - x; - if (offset > 0) - offset = 0; - - for ( t = lstatic->first(); t; t = lstatic->next() ) { - t->r.moveBy( offset, 0 ); - t->r.setHeight( r.height() ); - } - - if ( tqsizeHint() != oldSh ) - updateGeometry(); - - emit layoutChanged(); -} - -/*! - \reimp -*/ - -bool TQTabBar::event( TQEvent *e ) -{ - if ( e->type() == TQEvent::LanguageChange ) { - layoutTabs(); - updateArrowButtons(); - makeVisible( tab( currentTab() )); - } - - return TQWidget::event( e ); -} - -/*! - \reimp -*/ - -void TQTabBar::styleChange( TQStyle& old ) -{ - layoutTabs(); - updateArrowButtons(); - TQWidget::styleChange( old ); -} - -/*! - \reimp -*/ -void TQTabBar::focusInEvent( TQFocusEvent * ) -{ - TQTab *t = tab( d->focus ); - if ( t ) - tqrepaint( t->r, FALSE ); -} - -/*! - \reimp -*/ -void TQTabBar::focusOutEvent( TQFocusEvent * ) -{ - TQTab *t = tab( d->focus ); - if ( t ) - tqrepaint( t->r, FALSE ); -} - -/*! - \reimp -*/ -void TQTabBar::resizeEvent( TQResizeEvent * ) -{ - const int arrowWidth = TQMAX( d->btnWidth, TQApplication::globalStrut().width() );; - d->rightB->setGeometry( width() - arrowWidth, 0, arrowWidth, height() ); - d->leftB->setGeometry( width() - 2*arrowWidth, 0, arrowWidth, height() ); - layoutTabs(); - updateArrowButtons(); - makeVisible( tab( currentTab() )); -} - -void TQTabBar::scrollTabs() -{ - TQTab* left = 0; - TQTab* right = 0; - for ( TQTab* t = lstatic->first(); t; t = lstatic->next() ) { - if ( t->r.left() < 0 && t->r.right() > 0 ) - left = t; - if ( t->r.left() < d->leftB->x()+2 ) - right = t; - } - - if ( sender() == d->leftB ) - makeVisible( left ); - else if ( sender() == d->rightB ) - makeVisible( right ); -} - -void TQTabBar::makeVisible( TQTab* tab ) -{ - bool tooFarLeft = ( tab && tab->r.left() < 0 ); - bool tooFarRight = ( tab && tab->r.right() >= d->leftB->x() ); - - if ( !d->scrolls || ( !tooFarLeft && ! tooFarRight ) ) - return; - - bool bs = tqsignalsBlocked(); - blockSignals(TRUE); - layoutTabs(); - blockSignals(bs); - - int offset = 0; - - if ( tooFarLeft ) { - offset = tab->r.left(); - if (tab != lstatic->first()) - offset -= 8; - } else if ( tooFarRight ) { - offset = tab->r.right() - d->leftB->x() + 1; - } - - for ( TQTab* t = lstatic->first(); t; t = lstatic->next() ) - t->r.moveBy( -offset, 0 ); - - d->leftB->setEnabled( lstatic->first()->r.left() < 0); - d->rightB->setEnabled( lstatic->last()->r.right() >= d->leftB->x() ); - - // Make sure disabled buttons pop up again - if ( !d->leftB->isEnabled() && d->leftB->isDown() ) - d->leftB->setDown( FALSE ); - if ( !d->rightB->isEnabled() && d->rightB->isDown() ) - d->rightB->setDown( FALSE ); - - update(); - emit layoutChanged(); -} - -void TQTabBar::updateArrowButtons() -{ - if (lstatic->isEmpty()) { - d->scrolls = FALSE; - } else { - d->scrolls = (lstatic->last()->r.right() - lstatic->first()->r.left() > width()); - } - if ( d->scrolls ) { - const int arrowWidth = TQMAX( d->btnWidth, TQApplication::globalStrut().width() ); - if ( TQApplication::reverseLayout() ) { - d->rightB->setGeometry( arrowWidth, 0, arrowWidth, height() ); - d->leftB->setGeometry( 0, 0, arrowWidth, height() ); - } else { - d->rightB->setGeometry( width() - arrowWidth, 0, arrowWidth, height() ); - d->leftB->setGeometry( width() - 2*arrowWidth, 0, arrowWidth, height() ); - } - - d->leftB->setEnabled( lstatic->first()->r.left() < 0); - d->rightB->setEnabled( lstatic->last()->r.right() >= d->leftB->x() ); - d->leftB->show(); - d->rightB->show(); - } else { - d->leftB->hide(); - d->rightB->hide(); - layoutTabs(); - } -} - -/*! - Removes the tool tip for the tab at index position \a index. -*/ -void TQTabBar::removeToolTip( int index ) -{ -#ifndef TQT_NO_TOOLTIP - TQTab * tab = tabAt( index ); - if ( !tab || !d->toolTips ) - return; - d->toolTips->remove( tab ); -#endif -} - -/*! - Sets the tool tip for the tab at index position \a index to \a - tip. -*/ -void TQTabBar::setToolTip( int index, const TQString & tip ) -{ -#ifndef TQT_NO_TOOLTIP - TQTab * tab = tabAt( index ); - if ( !tab ) - return; - if ( d->toolTips == 0 ) - d->toolTips = new TQTabBarToolTip( this ); - d->toolTips->add( tab, tip ); -#endif -} - -/*! - Returns the tool tip for the tab at index position \a index. -*/ -TQString TQTabBar::toolTip( int index ) const -{ -#ifndef TQT_NO_TOOLTIP - if ( d->toolTips ) - return d->toolTips->tipForTab( tabAt( index ) ); - else -#endif - return TQString(); -} - -/*! - Sets the text of the tab to \a text. -*/ -void TQTab::setText( const TQString& text ) -{ - label = text; - if ( tb ) { -#ifndef TQT_NO_ACCEL - tb->d->a->removeItem( id ); - int p = TQAccel::shortcutKey( text ); - if ( p ) - tb->d->a->insertItem( p, id ); -#endif - tb->layoutTabs(); - tb->tqrepaint(FALSE); - -#if defined(TQT_ACCESSIBILITY_SUPPORT) - TQAccessible::updateAccessibility( tb, tb->indexOf(id)+1, TQAccessible::NameChanged ); -#endif - } -} - -/*! - Sets the tab's iconset to \a icon -*/ -void TQTab::setIconSet( const TQIconSet &icon ) -{ - iconset = new TQIconSet( icon ); -} - -// this allows us to handle accelerators that are in a TQTabBar. -void TQTab::setTabBar( TQTabBar *newTb ) -{ - tb = newTb; -} - -/*! - \internal -*/ -void TQTabBar::fontChange( const TQFont & oldFont ) -{ - layoutTabs(); - TQWidget::fontChange( oldFont ); -} - -#endif |