source: trunk/include/qlistview.h@ 95

Last change on this file since 95 was 8, checked in by dmik, 20 years ago

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1/****************************************************************************
2** $Id: qlistview.h 8 2005-11-16 19:36:46Z dmik $
3**
4** Definition of QListView widget class
5**
6** Created : 970809
7**
8** Copyright (C) 1992-2002 Trolltech AS. All rights reserved.
9**
10** This file is part of the widgets module of the Qt GUI Toolkit.
11**
12** This file may be distributed under the terms of the Q Public License
13** as defined by Trolltech AS of Norway and appearing in the file
14** LICENSE.QPL included in the packaging of this file.
15**
16** This file may be distributed and/or modified under the terms of the
17** GNU General Public License version 2 as published by the Free Software
18** Foundation and appearing in the file LICENSE.GPL included in the
19** packaging of this file.
20**
21** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
22** licenses may use this file in accordance with the Qt Commercial License
23** Agreement provided with the Software.
24**
25** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
26** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
27**
28** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
29** information about Qt Commercial License Agreements.
30** See http://www.trolltech.com/qpl/ for QPL licensing information.
31** See http://www.trolltech.com/gpl/ for GPL licensing information.
32**
33** Contact info@trolltech.com if any conditions of this licensing are
34** not clear to you.
35**
36**********************************************************************/
37
38#ifndef QLISTVIEW_H
39#define QLISTVIEW_H
40
41#ifndef QT_H
42#include "qscrollview.h"
43#endif // QT_H
44
45#ifndef QT_NO_LISTVIEW
46
47
48class QPixmap;
49class QFont;
50class QHeader;
51class QIconSet;
52
53class QListView;
54struct QListViewPrivate;
55struct QCheckListItemPrivate;
56class QListViewItemIterator;
57struct QListViewItemIteratorPrivate;
58class QDragObject;
59class QMimeSource;
60class QLineEdit;
61class QListViewToolTip;
62
63class Q_EXPORT QListViewItem : public Qt
64{
65 friend class QListViewItemIterator;
66 friend class QListViewToolTip;
67
68public:
69 QListViewItem( QListView * parent );
70 QListViewItem( QListViewItem * parent );
71 QListViewItem( QListView * parent, QListViewItem * after );
72 QListViewItem( QListViewItem * parent, QListViewItem * after );
73
74 QListViewItem( QListView * parent,
75 QString, QString = QString::null,
76 QString = QString::null, QString = QString::null,
77 QString = QString::null, QString = QString::null,
78 QString = QString::null, QString = QString::null );
79 QListViewItem( QListViewItem * parent,
80 QString, QString = QString::null,
81 QString = QString::null, QString = QString::null,
82 QString = QString::null, QString = QString::null,
83 QString = QString::null, QString = QString::null );
84
85 QListViewItem( QListView * parent, QListViewItem * after,
86 QString, QString = QString::null,
87 QString = QString::null, QString = QString::null,
88 QString = QString::null, QString = QString::null,
89 QString = QString::null, QString = QString::null );
90 QListViewItem( QListViewItem * parent, QListViewItem * after,
91 QString, QString = QString::null,
92 QString = QString::null, QString = QString::null,
93 QString = QString::null, QString = QString::null,
94 QString = QString::null, QString = QString::null );
95 virtual ~QListViewItem();
96
97 virtual void insertItem( QListViewItem * );
98 virtual void takeItem( QListViewItem * );
99 virtual void removeItem( QListViewItem *item ) { takeItem( item ); } //obsolete, use takeItem instead
100
101 int height() const;
102 virtual void invalidateHeight();
103 int totalHeight() const;
104 virtual int width( const QFontMetrics&,
105 const QListView*, int column) const;
106 void widthChanged(int column=-1) const;
107 int depth() const;
108
109 virtual void setText( int, const QString &);
110 virtual QString text( int ) const;
111
112 virtual void setPixmap( int, const QPixmap & );
113 virtual const QPixmap * pixmap( int ) const;
114
115 virtual QString key( int, bool ) const;
116 virtual int compare( QListViewItem *i, int col, bool ) const;
117 virtual void sortChildItems( int, bool );
118
119 int childCount() const { return nChildren; }
120
121 bool isOpen() const { return open; }
122 virtual void setOpen( bool );
123 virtual void setup();
124
125 virtual void setSelected( bool );
126 bool isSelected() const { return selected; }
127
128 virtual void paintCell( QPainter *, const QColorGroup & cg,
129 int column, int width, int alignment );
130 virtual void paintBranches( QPainter * p, const QColorGroup & cg,
131 int w, int y, int h );
132 virtual void paintFocus( QPainter *, const QColorGroup & cg,
133 const QRect & r );
134
135 QListViewItem * firstChild() const;
136 QListViewItem * nextSibling() const { return siblingItem; }
137 QListViewItem * parent() const;
138
139 QListViewItem * itemAbove();
140 QListViewItem * itemBelow();
141
142 int itemPos() const;
143
144 QListView *listView() const;
145
146 virtual void setSelectable( bool enable );
147 bool isSelectable() const { return selectable && enabled; }
148
149 virtual void setExpandable( bool );
150 bool isExpandable() const { return expandable; }
151
152 void repaint() const;
153
154 virtual void sort();
155 void moveItem( QListViewItem *after );
156
157 virtual void setDragEnabled( bool allow );
158 virtual void setDropEnabled( bool allow );
159 bool dragEnabled() const;
160 bool dropEnabled() const;
161 virtual bool acceptDrop( const QMimeSource *mime ) const;
162
163 void setVisible( bool b );
164 bool isVisible() const;
165
166 virtual void setRenameEnabled( int col, bool b );
167 bool renameEnabled( int col ) const;
168 virtual void startRename( int col );
169
170 virtual void setEnabled( bool b );
171 bool isEnabled() const;
172
173 virtual int rtti() const;
174 // ### Qt 4: make const or better use an enum
175 static int RTTI;
176
177 virtual void setMultiLinesEnabled( bool b );
178 bool multiLinesEnabled() const;
179
180protected:
181 virtual void enforceSortOrder() const;
182 virtual void setHeight( int );
183 virtual void activate();
184
185 bool activatedPos( QPoint & );
186#ifndef QT_NO_DRAGANDDROP
187//@@TODO (dmik): no QDropEvent yet (MOC ignores preprocessor macros)
188// virtual void dropped( QDropEvent *e );
189#endif
190 virtual void dragEntered();
191 virtual void dragLeft();
192 virtual void okRename( int col );
193 virtual void cancelRename( int col );
194
195 void ignoreDoubleClick();
196
197private:
198 void init();
199 void moveToJustAfter( QListViewItem * );
200 void enforceSortOrderBackToRoot();
201 void removeRenameBox();
202
203 int ownHeight;
204 int maybeTotalHeight;
205 int nChildren;
206
207 uint lsc: 14;
208 uint lso: 1;
209 uint open : 1;
210 uint selected : 1;
211 uint selectable: 1;
212 uint configured: 1;
213 uint expandable: 1;
214 uint is_root: 1;
215 uint allow_drag : 1;
216 uint allow_drop : 1;
217 uint visible : 1;
218 uint enabled : 1;
219 uint mlenabled : 1;
220
221 QListViewItem * parentItem;
222 QListViewItem * siblingItem;
223 QListViewItem * childItem;
224 QLineEdit *renameBox;
225 int renameCol;
226
227 void * columns;
228
229 friend class QListView;
230};
231
232class QCheckListItem;
233
234class Q_EXPORT QListView: public QScrollView
235{
236 friend class QListViewItemIterator;
237 friend class QListViewItem;
238 friend class QCheckListItem;
239 friend class QListViewToolTip;
240
241 Q_OBJECT
242 Q_ENUMS( SelectionMode ResizeMode RenameAction )
243 Q_PROPERTY( int columns READ columns )
244 Q_PROPERTY( bool multiSelection READ isMultiSelection WRITE setMultiSelection DESIGNABLE false )
245 Q_PROPERTY( SelectionMode selectionMode READ selectionMode WRITE setSelectionMode )
246 Q_PROPERTY( int childCount READ childCount )
247 Q_PROPERTY( bool allColumnsShowFocus READ allColumnsShowFocus WRITE setAllColumnsShowFocus )
248 Q_PROPERTY( bool showSortIndicator READ showSortIndicator WRITE setShowSortIndicator )
249 Q_PROPERTY( int itemMargin READ itemMargin WRITE setItemMargin )
250 Q_PROPERTY( bool rootIsDecorated READ rootIsDecorated WRITE setRootIsDecorated )
251 Q_PROPERTY( bool showToolTips READ showToolTips WRITE setShowToolTips )
252 Q_PROPERTY( ResizeMode resizeMode READ resizeMode WRITE setResizeMode )
253 Q_PROPERTY( int treeStepSize READ treeStepSize WRITE setTreeStepSize )
254 Q_PROPERTY( RenameAction defaultRenameAction READ defaultRenameAction WRITE setDefaultRenameAction )
255
256public:
257 QListView( QWidget* parent=0, const char* name=0, WFlags f = 0 );
258 ~QListView();
259
260 int treeStepSize() const;
261 virtual void setTreeStepSize( int );
262
263 virtual void insertItem( QListViewItem * );
264 virtual void takeItem( QListViewItem * );
265 virtual void removeItem( QListViewItem *item ) { takeItem( item ); } // obsolete, use takeItem instead
266
267 QHeader * header() const;
268
269 virtual int addColumn( const QString &label, int size = -1);
270 virtual int addColumn( const QIconSet& iconset, const QString &label, int size = -1);
271 virtual void removeColumn( int index );
272 virtual void setColumnText( int column, const QString &label );
273 virtual void setColumnText( int column, const QIconSet& iconset, const QString &label );
274 QString columnText( int column ) const;
275 virtual void setColumnWidth( int column, int width );
276 int columnWidth( int column ) const;
277 enum WidthMode { Manual, Maximum };
278 virtual void setColumnWidthMode( int column, WidthMode );
279 WidthMode columnWidthMode( int column ) const;
280 int columns() const;
281
282 virtual void setColumnAlignment( int, int );
283 int columnAlignment( int ) const;
284
285 void show();
286
287 QListViewItem * itemAt( const QPoint & screenPos ) const;
288 QRect itemRect( const QListViewItem * ) const;
289 int itemPos( const QListViewItem * );
290
291 void ensureItemVisible( const QListViewItem * );
292
293 void repaintItem( const QListViewItem * ) const;
294
295 virtual void setMultiSelection( bool enable );
296 bool isMultiSelection() const;
297
298 enum SelectionMode { Single, Multi, Extended, NoSelection };
299 void setSelectionMode( SelectionMode mode );
300 SelectionMode selectionMode() const;
301
302 virtual void clearSelection();
303 virtual void setSelected( QListViewItem *, bool );
304 void setSelectionAnchor( QListViewItem * );
305 bool isSelected( const QListViewItem * ) const;
306 QListViewItem * selectedItem() const;
307 virtual void setOpen( QListViewItem *, bool );
308 bool isOpen( const QListViewItem * ) const;
309
310 virtual void setCurrentItem( QListViewItem * );
311 QListViewItem * currentItem() const;
312
313 QListViewItem * firstChild() const;
314 QListViewItem * lastItem() const;
315
316 int childCount() const;
317
318 virtual void setAllColumnsShowFocus( bool );
319 bool allColumnsShowFocus() const;
320
321 virtual void setItemMargin( int );
322 int itemMargin() const;
323
324 virtual void setRootIsDecorated( bool );
325 bool rootIsDecorated() const;
326
327 virtual void setSorting( int column, bool ascending = TRUE );
328 int sortColumn() const;
329 void setSortColumn( int column );
330 SortOrder sortOrder() const;
331 void setSortOrder( SortOrder order );
332 virtual void sort();
333
334 virtual void setFont( const QFont & );
335 virtual void setPalette( const QPalette & );
336
337 bool eventFilter( QObject * o, QEvent * );
338
339 QSize sizeHint() const;
340 QSize minimumSizeHint() const;
341
342 virtual void setShowSortIndicator( bool show );
343 bool showSortIndicator() const;
344 virtual void setShowToolTips( bool b );
345 bool showToolTips() const;
346
347 enum ResizeMode { NoColumn, AllColumns, LastColumn };
348 virtual void setResizeMode( ResizeMode m );
349 ResizeMode resizeMode() const;
350
351 QListViewItem * findItem( const QString& text, int column, ComparisonFlags compare = ExactMatch | CaseSensitive ) const;
352
353 enum RenameAction { Accept, Reject };
354 virtual void setDefaultRenameAction( RenameAction a );
355 RenameAction defaultRenameAction() const;
356 bool isRenaming() const;
357
358 void hideColumn( int column );
359
360public slots:
361 virtual void clear();
362 virtual void invertSelection();
363 virtual void selectAll( bool select );
364 void triggerUpdate();
365 void setContentsPos( int x, int y );
366 void adjustColumn( int col );
367
368signals:
369 void selectionChanged();
370 void selectionChanged( QListViewItem * );
371 void currentChanged( QListViewItem * );
372 void clicked( QListViewItem * );
373 void clicked( QListViewItem *, const QPoint &, int );
374 void pressed( QListViewItem * );
375 void pressed( QListViewItem *, const QPoint &, int );
376
377 void doubleClicked( QListViewItem * );
378 void doubleClicked( QListViewItem *, const QPoint&, int );
379 void returnPressed( QListViewItem * );
380 void spacePressed( QListViewItem * );
381 void rightButtonClicked( QListViewItem *, const QPoint&, int );
382 void rightButtonPressed( QListViewItem *, const QPoint&, int );
383 void mouseButtonPressed( int, QListViewItem *, const QPoint& , int );
384 void mouseButtonClicked( int, QListViewItem *, const QPoint&, int );
385
386 void contextMenuRequested( QListViewItem *, const QPoint &, int );
387
388 void onItem( QListViewItem *item );
389 void onViewport();
390
391 void expanded( QListViewItem *item );
392 void collapsed( QListViewItem *item );
393#ifndef QT_NO_DRAGANDDROP
394//@@TODO (dmik): no QDropEvent yet (MOC ignores preprocessor macros)
395// void dropped( QDropEvent *e );
396#endif
397 void itemRenamed( QListViewItem *item, int col, const QString & );
398 void itemRenamed( QListViewItem *item, int col );
399
400protected:
401 void contentsMousePressEvent( QMouseEvent * e );
402 void contentsMouseReleaseEvent( QMouseEvent * e );
403 void contentsMouseMoveEvent( QMouseEvent * e );
404 void contentsMouseDoubleClickEvent( QMouseEvent * e );
405 void contentsContextMenuEvent( QContextMenuEvent * e );
406#ifndef QT_NO_DRAGANDDROP
407//@@TODO (dmik): no QDrag* and QDrop* classes yet (MOC ignores preprocessor macros)
408// void contentsDragEnterEvent( QDragEnterEvent *e );
409// void contentsDragMoveEvent( QDragMoveEvent *e );
410// void contentsDragLeaveEvent( QDragLeaveEvent *e );
411// void contentsDropEvent( QDropEvent *e );
412// virtual QDragObject *dragObject();
413// virtual void startDrag();
414#endif
415
416 void focusInEvent( QFocusEvent * e );
417 void focusOutEvent( QFocusEvent * e );
418
419 void keyPressEvent( QKeyEvent *e );
420
421 void resizeEvent( QResizeEvent *e );
422 void viewportResizeEvent( QResizeEvent *e );
423
424 void showEvent( QShowEvent * );
425
426 void drawContentsOffset( QPainter *, int ox, int oy,
427 int cx, int cy, int cw, int ch );
428
429 virtual void paintEmptyArea( QPainter *, const QRect & );
430 void styleChange( QStyle& );
431 void windowActivationChange( bool );
432
433protected slots:
434 void updateContents();
435 void doAutoScroll();
436
437private slots:
438 void changeSortColumn( int );
439 void handleIndexChange();
440 void updateDirtyItems();
441 void makeVisible();
442 void handleSizeChange( int, int, int );
443 void startRename();
444 void openFocusItem();
445
446private:
447 void contentsMousePressEventEx( QMouseEvent * e );
448 void contentsMouseReleaseEventEx( QMouseEvent * e );
449 void init();
450 void updateGeometries();
451 void buildDrawableList() const;
452 void reconfigureItems();
453 void widthChanged(const QListViewItem*, int c);
454 void handleItemChange( QListViewItem *old, bool shift, bool control );
455 void selectRange( QListViewItem *from, QListViewItem *to, bool invert, bool includeFirst, bool clearSel = FALSE );
456 bool selectRange( QListViewItem *newItem, QListViewItem *oldItem, QListViewItem *anchorItem );
457 bool clearRange( QListViewItem *from, QListViewItem *to, bool includeFirst = TRUE );
458 void doAutoScroll( const QPoint &cursorPos );
459
460 QListViewPrivate * d;
461
462private: // Disabled copy constructor and operator=
463#if defined(Q_DISABLE_COPY)
464 QListView( const QListView & );
465 QListView &operator=( const QListView & );
466#endif
467};
468
469
470class Q_EXPORT QCheckListItem : public QListViewItem
471{
472public:
473 enum Type { RadioButton,
474 CheckBox,
475 Controller,
476 RadioButtonController=Controller,
477 CheckBoxController };
478 // ### should be integrated with qbutton in ver4 perhaps
479 enum ToggleState { Off, NoChange, On };
480
481 QCheckListItem( QCheckListItem *parent, const QString &text,
482 Type = RadioButtonController );
483 QCheckListItem( QCheckListItem *parent, QListViewItem *after,
484 const QString &text, Type = RadioButtonController );
485 QCheckListItem( QListViewItem *parent, const QString &text,
486 Type = RadioButtonController );
487 QCheckListItem( QListViewItem *parent, QListViewItem *after,
488 const QString &text, Type = RadioButtonController );
489 QCheckListItem( QListView *parent, const QString &text,
490 Type = RadioButtonController );
491 QCheckListItem( QListView *parent, QListViewItem *after,
492 const QString &text, Type = RadioButtonController );
493 QCheckListItem( QListViewItem *parent, const QString &text,
494 const QPixmap & );
495 QCheckListItem( QListView *parent, const QString &text,
496 const QPixmap & );
497 ~QCheckListItem();
498
499 void paintCell( QPainter *, const QColorGroup & cg,
500 int column, int width, int alignment );
501 virtual void paintFocus( QPainter *, const QColorGroup & cg,
502 const QRect & r );
503 int width( const QFontMetrics&, const QListView*, int column) const;
504 void setup();
505
506 virtual void setOn( bool ); // ### should be replaced by setChecked in ver4
507 bool isOn() const { return on; }
508 Type type() const { return myType; }
509 QString text() const { return QListViewItem::text( 0 ); }
510 QString text( int n ) const { return QListViewItem::text( n ); }
511
512 void setTristate( bool );
513 bool isTristate() const;
514 ToggleState state() const;
515 void setState( ToggleState s);
516
517 int rtti() const;
518 static int RTTI;
519
520protected:
521 void activate();
522 void turnOffChild();
523 virtual void stateChange( bool );
524
525private:
526 void init();
527 ToggleState internalState() const;
528 void setStoredState( ToggleState newState, void *key );
529 ToggleState storedState( void *key ) const;
530 void stateChange( ToggleState s );
531 void restoreState( void *key, int depth = 0 );
532 void updateController( bool update = TRUE , bool store = FALSE );
533 void updateStoredState( void *key );
534 void setState( ToggleState s, bool update, bool store );
535 void setCurrentState( ToggleState s );
536
537 Type myType;
538 bool on; // ### remove in ver4
539 QCheckListItemPrivate *d;
540};
541
542class Q_EXPORT QListViewItemIterator
543{
544 friend struct QListViewPrivate;
545 friend class QListView;
546 friend class QListViewItem;
547
548public:
549 enum IteratorFlag {
550 Visible = 0x00000001,
551 Invisible = 0x00000002,
552 Selected = 0x00000004,
553 Unselected = 0x00000008,
554 Selectable = 0x00000010,
555 NotSelectable = 0x00000020,
556 DragEnabled = 0x00000040,
557 DragDisabled = 0x00000080,
558 DropEnabled = 0x00000100,
559 DropDisabled = 0x00000200,
560 Expandable = 0x00000400,
561 NotExpandable = 0x00000800,
562 Checked = 0x00001000,
563 NotChecked = 0x00002000
564 };
565
566 QListViewItemIterator();
567 QListViewItemIterator( QListViewItem *item );
568 QListViewItemIterator( QListViewItem *item, int iteratorFlags );
569
570 QListViewItemIterator( const QListViewItemIterator &it );
571 QListViewItemIterator( QListView *lv );
572 QListViewItemIterator( QListView *lv, int iteratorFlags );
573
574 QListViewItemIterator &operator=( const QListViewItemIterator &it );
575
576 ~QListViewItemIterator();
577
578 QListViewItemIterator &operator++();
579 const QListViewItemIterator operator++( int );
580 QListViewItemIterator &operator+=( int j );
581
582 QListViewItemIterator &operator--();
583 const QListViewItemIterator operator--( int );
584 QListViewItemIterator &operator-=( int j );
585
586 QListViewItem* operator*();
587 QListViewItem *current() const;
588
589protected:
590 QListViewItem *curr;
591 QListView *listView;
592
593private:
594 QListViewItemIteratorPrivate* d() const;
595 void init( int flags );
596 void addToListView();
597 void currentRemoved();
598 bool matchesFlags( const QListViewItem* ) const;
599 bool testPair( QListViewItemIterator::IteratorFlag, QListViewItemIterator::IteratorFlag, bool ) const;
600 bool isChecked( const QListViewItem* ) const;
601};
602
603#endif // QT_NO_LISTVIEW
604
605#endif // QLISTVIEW_H
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