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Diffstat (limited to 'tdevdesigner/designer/listviewdnd.cpp')
| -rw-r--r-- | tdevdesigner/designer/listviewdnd.cpp | 432 |
1 files changed, 0 insertions, 432 deletions
diff --git a/tdevdesigner/designer/listviewdnd.cpp b/tdevdesigner/designer/listviewdnd.cpp deleted file mode 100644 index 32dcc6d5..00000000 --- a/tdevdesigner/designer/listviewdnd.cpp +++ /dev/null @@ -1,432 +0,0 @@ -/********************************************************************** -** Copyright (C) 2002 Trolltech AS. All rights reserved. -** -** This file is part of TQt Designer. -** -** This file may be distributed and/or modified under the terms of the -** GNU General Public License version 2 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. -** -** Licensees holding valid TQt Enterprise Edition or TQt Professional Edition -** 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 -** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. -** -** See http://www.trolltech.com/gpl/ for GPL licensing information. -** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for -** information about TQt Commercial License Agreements. -** -** Contact info@trolltech.com if any conditions of this licensing are -** not clear to you. -** -**********************************************************************/ - -#include "listviewdnd.h" -#include <tqwidget.h> -#include <tqheader.h> -#include <tqpainter.h> -#include <tqdragobject.h> -#include <tqvaluelist.h> - -// The Dragobject Declaration --------------------------------------- -class ListViewItemDrag : public TQStoredDrag -{ -public: - enum DropRelation { Sibling, Child }; - ListViewItemDrag( ListViewItemList & items, TQWidget * parent = 0, const char * name = 0 ); - ~ListViewItemDrag() {}; - static bool canDecode( TQDragMoveEvent * event ); - static bool decode( TQDropEvent * event, TQListView * parent, TQListViewItem * insertPoint, DropRelation dr ); -}; -// ------------------------------------------------------------------ - -ListViewDnd::ListViewDnd( TQListView * eventSource, const char * name ) - : ListDnd( eventSource, name ) { } - -void ListViewDnd::confirmDrop( TQListViewItem * ) -{ - dropConfirmed = TRUE; -} - -bool ListViewDnd::dropEvent( TQDropEvent * event ) -{ - if ( dragInside ) { - - if ( dMode & NullDrop ) { // combined with Move, a NullDrop will delete an item - event->accept(); - emit dropped( 0 ); // a NullDrop - return TRUE; - } - - TQPoint pos = event->pos(); - - ListViewItemDrag::DropRelation dr = ListViewItemDrag::Sibling; - TQListViewItem *item = itemAt( pos ); - int dpos = dropDepth( item, pos ); - - if ( item ) { - if ( dpos > item->depth() && !(dMode & Flat) ) { - // Child node - dr = ListViewItemDrag::Child; - } else if ( dpos < item->depth() ) { - // Parent(s) Sibling - while ( item && (item->depth() > dpos) ) - item = item->parent(); - } - } - - if ( ListViewItemDrag::decode( event, (TQListView *) src, item, dr ) ) { - event->accept(); - emit dropped( 0 ); // Use ID instead of item? - } - } - - line->hide(); - dragInside = FALSE; - - return TRUE; -} - -bool ListViewDnd::mouseMoveEvent( TQMouseEvent * event ) -{ - if ( event->state() & Qt::LeftButton ) { - if ( ( event->pos() - mousePressPos ).manhattanLength() > 3 ) { - ListViewItemList list; - - if ( dMode & Flat ) - buildFlatList( list ); - else - buildTreeList( list ); - - ListViewItemDrag * dragobject = new ListViewItemDrag( list, (TQListView *) src ); - - if ( dMode & Move ) { - disabledItems = list; - setVisibleItems( FALSE ); - } - - dragobject->dragCopy(); - - if ( dMode & Move ) { - // Did the target accept the drop? - if ( dropConfirmed ) { - // Shouldn't autoDelete handle this? - for( list.first(); list.current(); list.next() ) - delete list.current(); - dropConfirmed = FALSE; - } else { - // Reenable disabled items since - // drag'n'drop was aborted - setVisibleItems( TRUE ); - } - disabledItems.clear(); - } - } - } - return FALSE; -} - -int ListViewDnd::buildFlatList( ListViewItemList & list ) -{ - bool addKids = FALSE; - TQListViewItem *nextSibling = 0; - TQListViewItem *nextParent = 0; - TQListViewItemIterator it = ((TQListView *)src)->firstChild(); - for ( ; *it; it++ ) { - // Hit the nextSibling, turn of child processing - if ( (*it) == nextSibling ) - addKids = FALSE; - - if ( (*it)->isSelected() ) { - if ( (*it)->childCount() == 0 ) { - // Selected, no children - list.append( *it ); - } else if ( !addKids ) { - // Children processing not set, so set it - // Also find the item were we shall quit - // processing children...if any such item - addKids = TRUE; - nextSibling = (*it)->nextSibling(); - nextParent = (*it)->parent(); - while ( nextParent && !nextSibling ) { - nextSibling = nextParent->nextSibling(); - nextParent = nextParent->parent(); - } - } - } else if ( ((*it)->childCount() == 0) && addKids ) { - // Leaf node, and we _do_ process children - list.append( *it ); - } - } - return list.count(); -} - -int ListViewDnd::buildTreeList( ListViewItemList & list ) -{ - TQListViewItemIterator it = ((TQListView *)src)->firstChild(); - for ( ; *it; it++ ) { - if ( (*it)->isSelected() ) - list.append( *it ); - } - return list.count(); -} - -void ListViewDnd::setVisibleItems( bool b ) -{ - if ( disabledItems.isEmpty() ) - return; - - disabledItems.first(); - do { - disabledItems.current()->setVisible( b ); - } while ( disabledItems.next() ); -} - -void ListViewDnd::updateLine( const TQPoint & dragPos ) -{ - TQListViewItem * item = itemAt(dragPos); - TQListView * src = (TQListView *) this->src; - - int ypos = item ? - ( src->itemRect( item ).bottom() - ( line->height() / 2 ) ) : - ( src->itemRect( src->firstChild() ).top() ); - - int xpos = dropDepth( item, dragPos ) * src->treeStepSize(); - line->resize( src->viewport()->width() - xpos, line->height() ); - line->move( xpos, ypos ); -} - -TQListViewItem * ListViewDnd::itemAt( TQPoint pos ) -{ - TQListView * src = (TQListView *) this->src; - int headerHeight = (int)(src->header()->height()); - pos.ry() -= headerHeight; - TQListViewItem * result = src->itemAt( pos ); - - if ( result && ( pos.ry() < (src->itemPos(result) + result->height()/2) ) ) - result = result->itemAbove(); - - // Wind back if has parent, and we're in flat mode - while ( result && result->parent() && (dMode & Flat) ) - result = result->parent(); - - // Wind back if has parent, and we're in flat mode - while ( result && !result->isVisible() && result->parent() ) - result = result->parent(); - - if ( !result && src->firstChild() && (pos.y() > src->itemRect(src->firstChild()).bottom()) ) { - result = src->lastItem(); - if ( !result->isVisible() ) - // Handle special case where last item is actually hidden - result = result->itemAbove(); - } - - return result; -} - -int ListViewDnd::dropDepth( TQListViewItem * item, TQPoint pos ) -{ - if ( !item || (dMode & Flat) ) - return 0; - - int result = 0; - int itemDepth = item->depth(); - int indentSize = ((TQListView *)src)->treeStepSize(); - int itemLeft = indentSize * itemDepth; - int childMargin = indentSize*2; - if ( pos.x() > itemLeft + childMargin ) { - result = itemDepth + 1; - } else if ( pos.x() < itemLeft ) { - result = pos.x() / indentSize; - } else { - result = itemDepth; - } - return result; -} - -bool ListViewDnd::canDecode( TQDragEnterEvent * event ) -{ - return ListViewItemDrag::canDecode( event ); -} - -// ------------------------------------------------------------------ -// The Dragobject Implementation ------------------------------------ -// ------------------------------------------------------------------ - -TQDataStream & operator<< ( TQDataStream & stream, const TQListViewItem & item ); -TQDataStream & operator>> ( TQDataStream & stream, TQListViewItem & item ); - -ListViewItemDrag::ListViewItemDrag( ListViewItemList & items, TQWidget * parent, const char * name ) - : TQStoredDrag( "qt/listviewitem", parent, name ) -{ - // ### FIX! - TQByteArray data( sizeof( TQ_INT32 ) + sizeof( TQListViewItem ) * items.count() ); - TQDataStream stream( data, IO_WriteOnly ); - - stream << items.count(); - - TQListViewItem *i = items.first(); - while ( i ) { - stream << *i; - i = items.next(); - } - - setEncodedData( data ); -} - -bool ListViewItemDrag::canDecode( TQDragMoveEvent * event ) -{ - return event->provides( "qt/listviewitem" ); -} - -bool ListViewItemDrag::decode( TQDropEvent * event, TQListView * parent, TQListViewItem * insertPoint, DropRelation dr ) -{ - TQByteArray data = event->encodedData( "qt/listviewitem" ); - TQListViewItem* itemParent = insertPoint ? insertPoint->parent() : 0; - - // Change from sibling (default) to child creation - if ( insertPoint && dr == Child ) { - itemParent = insertPoint; - insertPoint = 0; - } - - if ( data.size() ) { - event->accept(); - TQDataStream stream( data, IO_ReadOnly ); - - int count = 0; - stream >> count; - - for( int i = 0; i < count; i++ ) { - if ( itemParent ) { - insertPoint = new TQListViewItem( itemParent, insertPoint ); - itemParent->setOpen( TRUE ); - } else { // No parent for insertPoint, use TQListView - insertPoint = new TQListViewItem( parent, insertPoint ); - } - stream >> *insertPoint; - } - return TRUE; - } - return FALSE; -} - - -TQDataStream & operator<< ( TQDataStream & stream, const TQListViewItem & item ) -{ - int columns = item.listView()->columns(); - stream << columns; - - TQ_UINT8 b = 0; - - int i; - for ( i = 0; i < columns; i++ ) { - b = (TQ_UINT8) ( item.text( i ) != TQString() ); // does column i have a string ? - stream << b; - if ( b ) { - stream << item.text( i ); - } - } - - for ( i = 0; i < columns; i++ ) { - b = (TQ_UINT8) ( !!item.pixmap( i ) ); // does column i have a pixmap ? - stream << b; - if ( b ) { - stream << ( *item.pixmap( i ) ); - } - } - - stream << (TQ_UINT8) item.isOpen(); - stream << (TQ_UINT8) item.isSelectable(); - stream << (TQ_UINT8) item.isExpandable(); - stream << (TQ_UINT8) item.dragEnabled(); - stream << (TQ_UINT8) item.dropEnabled(); - stream << (TQ_UINT8) item.isVisible(); - - for ( i = 0; i < columns; i++ ) { - stream << (TQ_UINT8) item.renameEnabled( i ); - } - - stream << (TQ_UINT8) item.multiLinesEnabled(); - stream << item.childCount(); - - if ( item.childCount() > 0 ) { - TQListViewItem * child = item.firstChild(); - while ( child ) { - stream << ( *child ); // recursive call - child = child->nextSibling(); - } - } - - return stream; -} - -TQDataStream & operator>> ( TQDataStream & stream, TQListViewItem & item ) -{ - TQ_INT32 columns; - stream >> columns; - - TQ_UINT8 b = 0; - - TQString text; - int i; - for ( i = 0; i < columns; i++ ) { - stream >> b; - if ( b ) { // column i has string ? - stream >> text; - item.setText( i, text ); - } - } - - TQPixmap pixmap; - for ( i = 0; i < columns; i++ ) { - stream >> b; // column i has pixmap ? - if ( b ) { - stream >> pixmap; - item.setPixmap( i, pixmap ); - } - } - - stream >> b; - item.setOpen( b ); - - stream >> b; - item.setSelectable( b ); - - stream >> b; - item.setExpandable( b ); - - stream >> b; - item.setDragEnabled( b ); - - stream >> b; - item.setDropEnabled( b ); - - stream >> b; - item.setVisible( b ); - - for ( i = 0; i < columns; i++ ) { - stream >> b; - item.setRenameEnabled( i, b ); - } - - stream >> b; - item.setMultiLinesEnabled( b ); - - int childCount; - stream >> childCount; - - TQListViewItem *child = 0; - TQListViewItem *prevchild = 0; - for ( i = 0; i < childCount; i++ ) { - child = new TQListViewItem( &item, prevchild ); - stream >> ( *child ); - item.insertItem( child ); - prevchild = child; - } - - return stream; -} |