source: trunk/src/gui/itemviews/qabstractitemview.h@ 605

Last change on this file since 605 was 561, checked in by Dmitry A. Kuminov, 15 years ago

trunk: Merged in qt 4.6.1 sources.
File size: 13.2 KB
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1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the QtGui module of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
22** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
23**
24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you have questions regarding the use of this file, please contact
37** Nokia at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#ifndef QABSTRACTITEMVIEW_H
43#define QABSTRACTITEMVIEW_H
44
45#include <QtGui/qabstractscrollarea.h>
46#include <QtCore/qabstractitemmodel.h>
47#include <QtGui/qitemselectionmodel.h>
48#include <QtGui/qabstractitemdelegate.h>
49
50QT_BEGIN_HEADER
51
52QT_BEGIN_NAMESPACE
53
54QT_MODULE(Gui)
55
56#ifndef QT_NO_ITEMVIEWS
57
58class QMenu;
59class QDrag;
60class QEvent;
61class QAbstractItemViewPrivate;
62
63class Q_GUI_EXPORT QAbstractItemView : public QAbstractScrollArea
64{
65 Q_OBJECT
66 Q_ENUMS(SelectionMode SelectionBehavior ScrollHint ScrollMode DragDropMode)
67 Q_FLAGS(EditTriggers)
68 Q_PROPERTY(bool autoScroll READ hasAutoScroll WRITE setAutoScroll)
69 Q_PROPERTY(int autoScrollMargin READ autoScrollMargin WRITE setAutoScrollMargin)
70 Q_PROPERTY(EditTriggers editTriggers READ editTriggers WRITE setEditTriggers)
71 Q_PROPERTY(bool tabKeyNavigation READ tabKeyNavigation WRITE setTabKeyNavigation)
72#ifndef QT_NO_DRAGANDDROP
73 Q_PROPERTY(bool showDropIndicator READ showDropIndicator WRITE setDropIndicatorShown)
74 Q_PROPERTY(bool dragEnabled READ dragEnabled WRITE setDragEnabled)
75 Q_PROPERTY(bool dragDropOverwriteMode READ dragDropOverwriteMode WRITE setDragDropOverwriteMode)
76 Q_PROPERTY(DragDropMode dragDropMode READ dragDropMode WRITE setDragDropMode)
77 Q_PROPERTY(Qt::DropAction defaultDropAction READ defaultDropAction WRITE setDefaultDropAction)
78#endif
79 Q_PROPERTY(bool alternatingRowColors READ alternatingRowColors WRITE setAlternatingRowColors)
80 Q_PROPERTY(SelectionMode selectionMode READ selectionMode WRITE setSelectionMode)
81 Q_PROPERTY(SelectionBehavior selectionBehavior READ selectionBehavior WRITE setSelectionBehavior)
82 Q_PROPERTY(QSize iconSize READ iconSize WRITE setIconSize)
83 Q_PROPERTY(Qt::TextElideMode textElideMode READ textElideMode WRITE setTextElideMode)
84 Q_PROPERTY(ScrollMode verticalScrollMode READ verticalScrollMode WRITE setVerticalScrollMode)
85 Q_PROPERTY(ScrollMode horizontalScrollMode READ horizontalScrollMode WRITE setHorizontalScrollMode)
86
87public:
88 enum SelectionMode {
89 NoSelection,
90 SingleSelection,
91 MultiSelection,
92 ExtendedSelection,
93 ContiguousSelection
94 };
95
96 enum SelectionBehavior {
97 SelectItems,
98 SelectRows,
99 SelectColumns
100 };
101
102 enum ScrollHint {
103 EnsureVisible,
104 PositionAtTop,
105 PositionAtBottom,
106 PositionAtCenter
107 };
108
109 enum EditTrigger {
110 NoEditTriggers = 0,
111 CurrentChanged = 1,
112 DoubleClicked = 2,
113 SelectedClicked = 4,
114 EditKeyPressed = 8,
115 AnyKeyPressed = 16,
116 AllEditTriggers = 31
117 };
118
119 Q_DECLARE_FLAGS(EditTriggers, EditTrigger)
120
121 enum ScrollMode {
122 ScrollPerItem,
123 ScrollPerPixel
124 };
125
126 explicit QAbstractItemView(QWidget *parent = 0);
127 ~QAbstractItemView();
128
129 virtual void setModel(QAbstractItemModel *model);
130 QAbstractItemModel *model() const;
131
132 virtual void setSelectionModel(QItemSelectionModel *selectionModel);
133 QItemSelectionModel *selectionModel() const;
134
135 void setItemDelegate(QAbstractItemDelegate *delegate);
136 QAbstractItemDelegate *itemDelegate() const;
137
138 void setSelectionMode(QAbstractItemView::SelectionMode mode);
139 QAbstractItemView::SelectionMode selectionMode() const;
140
141 void setSelectionBehavior(QAbstractItemView::SelectionBehavior behavior);
142 QAbstractItemView::SelectionBehavior selectionBehavior() const;
143
144 QModelIndex currentIndex() const;
145 QModelIndex rootIndex() const;
146
147 void setEditTriggers(EditTriggers triggers);
148 EditTriggers editTriggers() const;
149
150 void setVerticalScrollMode(ScrollMode mode);
151 ScrollMode verticalScrollMode() const;
152
153 void setHorizontalScrollMode(ScrollMode mode);
154 ScrollMode horizontalScrollMode() const;
155
156 void setAutoScroll(bool enable);
157 bool hasAutoScroll() const;
158
159 void setAutoScrollMargin(int margin);
160 int autoScrollMargin() const;
161
162 void setTabKeyNavigation(bool enable);
163 bool tabKeyNavigation() const;
164
165#ifndef QT_NO_DRAGANDDROP
166 void setDropIndicatorShown(bool enable);
167 bool showDropIndicator() const;
168
169 void setDragEnabled(bool enable);
170 bool dragEnabled() const;
171
172 void setDragDropOverwriteMode(bool overwrite);
173 bool dragDropOverwriteMode() const;
174
175 enum DragDropMode {
176 NoDragDrop,
177 DragOnly,
178 DropOnly,
179 DragDrop,
180 InternalMove
181 };
182
183 void setDragDropMode(DragDropMode behavior);
184 DragDropMode dragDropMode() const;
185
186 void setDefaultDropAction(Qt::DropAction dropAction);
187 Qt::DropAction defaultDropAction() const;
188#endif
189
190 void setAlternatingRowColors(bool enable);
191 bool alternatingRowColors() const;
192
193 void setIconSize(const QSize &size);
194 QSize iconSize() const;
195
196 void setTextElideMode(Qt::TextElideMode mode);
197 Qt::TextElideMode textElideMode() const;
198
199 virtual void keyboardSearch(const QString &search);
200
201 virtual QRect visualRect(const QModelIndex &index) const = 0;
202 virtual void scrollTo(const QModelIndex &index, ScrollHint hint = EnsureVisible) = 0;
203 virtual QModelIndex indexAt(const QPoint &point) const = 0;
204
205 QSize sizeHintForIndex(const QModelIndex &index) const;
206 virtual int sizeHintForRow(int row) const;
207 virtual int sizeHintForColumn(int column) const;
208
209 void openPersistentEditor(const QModelIndex &index);
210 void closePersistentEditor(const QModelIndex &index);
211
212 void setIndexWidget(const QModelIndex &index, QWidget *widget);
213 QWidget *indexWidget(const QModelIndex &index) const;
214
215 void setItemDelegateForRow(int row, QAbstractItemDelegate *delegate);
216 QAbstractItemDelegate *itemDelegateForRow(int row) const;
217
218 void setItemDelegateForColumn(int column, QAbstractItemDelegate *delegate);
219 QAbstractItemDelegate *itemDelegateForColumn(int column) const;
220
221 QAbstractItemDelegate *itemDelegate(const QModelIndex &index) const;
222
223 virtual QVariant inputMethodQuery(Qt::InputMethodQuery query) const;
224
225#ifdef Q_NO_USING_KEYWORD
226 inline void update() { QAbstractScrollArea::update(); }
227#else
228 using QAbstractScrollArea::update;
229#endif
230
231public Q_SLOTS:
232 virtual void reset();
233 virtual void setRootIndex(const QModelIndex &index);
234 virtual void doItemsLayout();
235 virtual void selectAll();
236 void edit(const QModelIndex &index);
237 void clearSelection();
238 void setCurrentIndex(const QModelIndex &index);
239 void scrollToTop();
240 void scrollToBottom();
241 void update(const QModelIndex &index);
242
243protected Q_SLOTS:
244 virtual void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);
245 virtual void rowsInserted(const QModelIndex &parent, int start, int end);
246 virtual void rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end);
247 virtual void selectionChanged(const QItemSelection &selected, const QItemSelection &deselected);
248 virtual void currentChanged(const QModelIndex &current, const QModelIndex &previous);
249 virtual void updateEditorData();
250 virtual void updateEditorGeometries();
251 virtual void updateGeometries();
252 virtual void verticalScrollbarAction(int action);
253 virtual void horizontalScrollbarAction(int action);
254 virtual void verticalScrollbarValueChanged(int value);
255 virtual void horizontalScrollbarValueChanged(int value);
256 virtual void closeEditor(QWidget *editor, QAbstractItemDelegate::EndEditHint hint);
257 virtual void commitData(QWidget *editor);
258 virtual void editorDestroyed(QObject *editor);
259
260Q_SIGNALS:
261 void pressed(const QModelIndex &index);
262 void clicked(const QModelIndex &index);
263 void doubleClicked(const QModelIndex &index);
264
265 void activated(const QModelIndex &index);
266 void entered(const QModelIndex &index);
267 void viewportEntered();
268
269protected:
270 QAbstractItemView(QAbstractItemViewPrivate &, QWidget *parent = 0);
271
272 void setHorizontalStepsPerItem(int steps);
273 int horizontalStepsPerItem() const;
274 void setVerticalStepsPerItem(int steps);
275 int verticalStepsPerItem() const;
276
277 enum CursorAction { MoveUp, MoveDown, MoveLeft, MoveRight,
278 MoveHome, MoveEnd, MovePageUp, MovePageDown,
279 MoveNext, MovePrevious };
280 virtual QModelIndex moveCursor(CursorAction cursorAction,
281 Qt::KeyboardModifiers modifiers) = 0;
282
283 virtual int horizontalOffset() const = 0;
284 virtual int verticalOffset() const = 0;
285
286 virtual bool isIndexHidden(const QModelIndex &index) const = 0;
287
288 virtual void setSelection(const QRect &rect, QItemSelectionModel::SelectionFlags command) = 0;
289 virtual QRegion visualRegionForSelection(const QItemSelection &selection) const = 0;
290 virtual QModelIndexList selectedIndexes() const;
291
292 virtual bool edit(const QModelIndex &index, EditTrigger trigger, QEvent *event);
293
294 virtual QItemSelectionModel::SelectionFlags selectionCommand(const QModelIndex &index,
295 const QEvent *event = 0) const;
296
297#ifndef QT_NO_DRAGANDDROP
298 virtual void startDrag(Qt::DropActions supportedActions);
299#endif
300
301 virtual QStyleOptionViewItem viewOptions() const;
302
303 enum State {
304 NoState,
305 DraggingState,
306 DragSelectingState,
307 EditingState,
308 ExpandingState,
309 CollapsingState,
310 AnimatingState
311 };
312
313 State state() const;
314 void setState(State state);
315
316 void scheduleDelayedItemsLayout();
317 void executeDelayedItemsLayout();
318
319 void setDirtyRegion(const QRegion &region);
320 void scrollDirtyRegion(int dx, int dy);
321 QPoint dirtyRegionOffset() const;
322
323 void startAutoScroll();
324 void stopAutoScroll();
325 void doAutoScroll();
326
327 bool focusNextPrevChild(bool next);
328 bool event(QEvent *event);
329 bool viewportEvent(QEvent *event);
330 void mousePressEvent(QMouseEvent *event);
331 void mouseMoveEvent(QMouseEvent *event);
332 void mouseReleaseEvent(QMouseEvent *event);
333 void mouseDoubleClickEvent(QMouseEvent *event);
334#ifndef QT_NO_DRAGANDDROP
335 void dragEnterEvent(QDragEnterEvent *event);
336 void dragMoveEvent(QDragMoveEvent *event);
337 void dragLeaveEvent(QDragLeaveEvent *event);
338 void dropEvent(QDropEvent *event);
339#endif
340 void focusInEvent(QFocusEvent *event);
341 void focusOutEvent(QFocusEvent *event);
342 void keyPressEvent(QKeyEvent *event);
343 void resizeEvent(QResizeEvent *event);
344 void timerEvent(QTimerEvent *event);
345 void inputMethodEvent(QInputMethodEvent *event);
346
347#ifndef QT_NO_DRAGANDDROP
348 enum DropIndicatorPosition { OnItem, AboveItem, BelowItem, OnViewport };
349 DropIndicatorPosition dropIndicatorPosition() const;
350#endif
351
352private:
353 Q_DECLARE_PRIVATE(QAbstractItemView)
354 Q_DISABLE_COPY(QAbstractItemView)
355 Q_PRIVATE_SLOT(d_func(), void _q_columnsAboutToBeRemoved(const QModelIndex&, int, int))
356 Q_PRIVATE_SLOT(d_func(), void _q_columnsRemoved(const QModelIndex&, int, int))
357 Q_PRIVATE_SLOT(d_func(), void _q_columnsInserted(const QModelIndex&, int, int))
358 Q_PRIVATE_SLOT(d_func(), void _q_rowsRemoved(const QModelIndex&, int, int))
359 Q_PRIVATE_SLOT(d_func(), void _q_modelDestroyed())
360 Q_PRIVATE_SLOT(d_func(), void _q_layoutChanged())
361 Q_PRIVATE_SLOT(d_func(), void _q_headerDataChanged())
362
363 friend class QTreeViewPrivate; // needed to compile with MSVC
364 friend class QAccessibleItemRow;
365 friend class QListModeViewBase;
366 friend class QListViewPrivate; // needed to compile for Symbian emulator
367};
368
369Q_DECLARE_OPERATORS_FOR_FLAGS(QAbstractItemView::EditTriggers)
370
371#endif // QT_NO_ITEMVIEWS
372
373QT_END_NAMESPACE
374
375QT_END_HEADER
376
377#endif // QABSTRACTITEMVIEW_H
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