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/**************************************************************************** ** $Id: qt/src/iconview/qiconview.cpp 2.3.10 edited 2005-01-24 $ ** ** Implementation of QIconView widget class ** ** Created : 990707 ** ** Copyright (C) 1992-2000 Trolltech AS. All rights reserved. ** ** This file is part of the iconview module of the Qt GUI Toolkit. ** ** This file may be distributed under the terms of the Q Public License ** as defined by Trolltech AS of Norway and appearing in the file ** LICENSE.QPL included in the packaging of this file. ** ** 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 Qt Enterprise Edition or Qt Professional Edition ** licenses may use this file in accordance with the Qt 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/pricing.html or email sales@trolltech.com for ** information about Qt Commercial License Agreements. ** See http://www.trolltech.com/qpl/ for QPL licensing information. ** See http://www.trolltech.com/gpl/ for GPL licensing information. ** ** Contact info@trolltech.com if any conditions of this licensing are ** not clear to you. ** **********************************************************************/ #include "qiconview.h" #ifndef QT_NO_ICONVIEW #include "qpixmap.h" #include "qfontmetrics.h" #include "qpainter.h" #include "qevent.h" #include "qpalette.h" #include "qmime.h" #include "qimage.h" #include "qpen.h" #include "qbrush.h" #include "qtimer.h" #include "qcursor.h" #include "qkeycode.h" #include "qapplication.h" #include "qmultilineedit.h" #include "qmap.h" #include "qarray.h" #include "qlist.h" #include "qvbox.h" #include "qtooltip.h" #include "qbitmap.h" #include "qpixmapcache.h" #include "qptrdict.h" #include "qstringlist.h" #include <stdlib.h> #include <math.h> #include <limits.h> #define RECT_EXTENSION 300 #ifdef QT_KEYPAD_MODE extern bool qt_singleFocusWidget(const QWidget *in); extern bool qt_modalEditingEnabled; #endif 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 QPixmap *unknown_icon = 0; static QPixmap *qiv_buffer_pixmap = 0; static QPixmap *qiv_selection = 0; static void qt_cleanup_qiv1() { delete unknown_icon; unknown_icon = 0; delete qiv_selection; qiv_selection = 0; } static void qt_cleanup_qiv2() { delete qiv_buffer_pixmap; qiv_buffer_pixmap = 0; delete qiv_selection; qiv_selection = 0; } #if !defined(_WS_X11_) static void createSelectionPixmap( const QColorGroup &cg ) { qiv_selection = new QPixmap( 2, 2 ); qiv_selection->fill( Qt::color0 ); QBitmap m( 2, 2 ); m.fill( Qt::color1 ); QPainter p( &m ); p.setPen( Qt::color0 ); for ( int j = 0; j < 2; ++j ) { p.drawPoint( j % 2, j ); } p.end(); qiv_selection->setMask( m ); qiv_selection->fill( cg.highlight() ); } #endif static QPixmap *get_qiv_buffer_pixmap( const QSize &s ) { if ( !qiv_buffer_pixmap ) { qiv_buffer_pixmap = new QPixmap( s ); qAddPostRoutine( qt_cleanup_qiv2 ); return qiv_buffer_pixmap; } qiv_buffer_pixmap->resize( s ); return qiv_buffer_pixmap; } /***************************************************************************** * * Struct QIconViewPrivate * *****************************************************************************/ #ifndef QT_NO_DRAGANDDROP class QIconDragData { public: QIconDragData(); QIconDragData( const QRect &ir, const QRect &tr ); QRect pixmapRect() const; QRect textRect() const; void setPixmapRect( const QRect &r ); void setTextRect( const QRect &r ); QRect iconRect_, textRect_; QString key_; bool operator==( const QIconDragData &i ) const; }; class QIconDragDataItem { public: QIconDragDataItem() {} QIconDragDataItem( const QIconDragItem &i1, const QIconDragData &i2 ) : data( i1 ), item( i2 ) {} QIconDragItem data; QIconDragData item; bool operator== ( const QIconDragDataItem& ) const; }; struct QIconDragPrivate { QValueList<QIconDragDataItem> items; static bool decode( QMimeSource* e, QValueList<QIconDragDataItem> &lst ); }; #endif class QIconViewToolTip; class QIconViewPrivate { public: QIconViewItem *firstItem, *lastItem; uint count; bool mousePressed; QIconView::SelectionMode selectionMode; QIconViewItem *currentItem, *tmpCurrentItem, *highlightedItem, *startDragItem, *pressedItem, *selectAnchor; QRect *rubber; QTimer *scrollTimer, *adjustTimer, *updateTimer, *inputTimer, *fullRedrawTimer; int rastX, rastY, spacing; bool cleared, dropped, clearing; int dragItems; QPoint oldDragPos; bool oldDragAcceptAction; QIconView::Arrangement arrangement; QIconView::ResizeMode resizeMode; QSize oldSize; #ifndef QT_NO_DRAGANDDROP QValueList<QIconDragDataItem> iconDragData; #endif bool isIconDrag; int numDragItems, cachedW, cachedH; int maxItemWidth, maxItemTextLength; QPoint dragStart; bool drawDragShapes; QString currInputString; bool dirty, rearrangeEnabled; QIconView::ItemTextPos itemTextPos; bool reorderItemsWhenInsert; #ifndef QT_NO_CURSOR QCursor oldCursor; #endif bool resortItemsWhenInsert, sortDirection; bool wordWrapIconText; int cachedContentsX, cachedContentsY; QBrush itemTextBrush; bool drawAllBack; QRegion clipRegion; QPoint dragStartPos; QFontMetrics *fm; int minLeftBearing, minRightBearing; bool containerUpdateLocked; bool firstSizeHint; #ifndef QT_NO_TOOLTIP QIconViewToolTip *toolTip; bool showTips; #endif QPixmapCache maskCache; bool pressedSelected; bool dragging; QPtrDict<QIconViewItem> selectedItems; struct ItemContainer { ItemContainer( ItemContainer *pr, ItemContainer *nx, const QRect &r ) : p( pr ), n( nx ), rect( r ) { items.setAutoDelete( FALSE ); if ( p ) p->n = this; if ( n ) n->p = this; } ItemContainer *p, *n; QRect rect; QList<QIconViewItem> items; } *firstContainer, *lastContainer; struct SortableItem { QIconViewItem *item; }; }; #ifndef QT_NO_TOOLTIP /*******************************