source: trunk/src/gui/itemviews/qtreewidget.h@ 695

Last change on this file since 695 was 651, checked in by Dmitry A. Kuminov, 16 years ago

trunk: Merged in qt 4.6.2 sources.
File size: 16.8 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation (qt-info@nokia.com)
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 qt-info@nokia.com.
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#ifndef QTREEWIDGET_H
43#define QTREEWIDGET_H
44
45#include <QtGui/qtreeview.h>
46#include <QtGui/qtreewidgetitemiterator.h>
47#include <QtCore/qvariant.h>
48#include <QtCore/qvector.h>
49
50QT_BEGIN_HEADER
51
52QT_BEGIN_NAMESPACE
53
54QT_MODULE(Gui)
55
56#ifndef QT_NO_TREEWIDGET
57
58class QTreeWidget;
59class QTreeModel;
60class QWidgetItemData;
61class QTreeWidgetItemPrivate;
62
63class Q_GUI_EXPORT QTreeWidgetItem
64{
65 friend class QTreeModel;
66 friend class QTreeWidget;
67 friend class QTreeWidgetPrivate;
68 friend class QTreeWidgetItemIterator;
69 friend class QTreeWidgetItemPrivate;
70public:
71 enum ItemType { Type = 0, UserType = 1000 };
72 explicit QTreeWidgetItem(int type = Type);
73 QTreeWidgetItem(const QStringList &strings, int type = Type);
74 explicit QTreeWidgetItem(QTreeWidget *view, int type = Type);
75 QTreeWidgetItem(QTreeWidget *view, const QStringList &strings, int type = Type);
76 QTreeWidgetItem(QTreeWidget *view, QTreeWidgetItem *after, int type = Type);
77 explicit QTreeWidgetItem(QTreeWidgetItem *parent, int type = Type);
78 QTreeWidgetItem(QTreeWidgetItem *parent, const QStringList &strings, int type = Type);
79 QTreeWidgetItem(QTreeWidgetItem *parent, QTreeWidgetItem *after, int type = Type);
80 QTreeWidgetItem(const QTreeWidgetItem &other);
81 virtual ~QTreeWidgetItem();
82
83 virtual QTreeWidgetItem *clone() const;
84
85 inline QTreeWidget *treeWidget() const { return view; }
86
87 inline void setSelected(bool select);
88 inline bool isSelected() const;
89
90 inline void setHidden(bool hide);
91 inline bool isHidden() const;
92
93 inline void setExpanded(bool expand);
94 inline bool isExpanded() const;
95
96 inline void setFirstColumnSpanned(bool span);
97 inline bool isFirstColumnSpanned() const;
98
99 inline void setDisabled(bool disabled);
100 inline bool isDisabled() const;
101
102 enum ChildIndicatorPolicy { ShowIndicator, DontShowIndicator, DontShowIndicatorWhenChildless };
103 void setChildIndicatorPolicy(QTreeWidgetItem::ChildIndicatorPolicy policy);
104 QTreeWidgetItem::ChildIndicatorPolicy childIndicatorPolicy() const;
105
106 Qt::ItemFlags flags() const;
107 void setFlags(Qt::ItemFlags flags);
108
109 inline QString text(int column) const
110 { return data(column, Qt::DisplayRole).toString(); }
111 inline void setText(int column, const QString &text);
112
113 inline QIcon icon(int column) const
114 { return qvariant_cast<QIcon>(data(column, Qt::DecorationRole)); }
115 inline void setIcon(int column, const QIcon &icon);
116
117 inline QString statusTip(int column) const
118 { return data(column, Qt::StatusTipRole).toString(); }
119 inline void setStatusTip(int column, const QString &statusTip);
120
121#ifndef QT_NO_TOOLTIP
122 inline QString toolTip(int column) const
123 { return data(column, Qt::ToolTipRole).toString(); }
124 inline void setToolTip(int column, const QString &toolTip);
125#endif
126
127#ifndef QT_NO_WHATSTHIS
128 inline QString whatsThis(int column) const
129 { return data(column, Qt::WhatsThisRole).toString(); }
130 inline void setWhatsThis(int column, const QString &whatsThis);
131#endif
132
133 inline QFont font(int column) const
134 { return qvariant_cast<QFont>(data(column, Qt::FontRole)); }
135 inline void setFont(int column, const QFont &font);
136
137 inline int textAlignment(int column) const
138 { return data(column, Qt::TextAlignmentRole).toInt(); }
139 inline void setTextAlignment(int column, int alignment)
140 { setData(column, Qt::TextAlignmentRole, alignment); }
141
142 inline QColor backgroundColor(int column) const
143 { return qvariant_cast<QColor>(data(column, Qt::BackgroundColorRole)); }
144 inline void setBackgroundColor(int column, const QColor &color)
145 { setData(column, Qt::BackgroundColorRole, color); }
146
147 inline QBrush background(int column) const
148 { return qvariant_cast<QBrush>(data(column, Qt::BackgroundRole)); }
149 inline void setBackground(int column, const QBrush &brush)
150 { setData(column, Qt::BackgroundRole, brush); }
151
152 inline QColor textColor(int column) const
153 { return qvariant_cast<QColor>(data(column, Qt::TextColorRole)); }
154 inline void setTextColor(int column, const QColor &color)
155 { setData(column, Qt::TextColorRole, color); }
156
157 inline QBrush foreground(int column) const
158 { return qvariant_cast<QBrush>(data(column, Qt::ForegroundRole)); }
159 inline void setForeground(int column, const QBrush &brush)
160 { setData(column, Qt::ForegroundRole, brush); }
161
162 inline Qt::CheckState checkState(int column) const
163 { return static_cast<Qt::CheckState>(data(column, Qt::CheckStateRole).toInt()); }
164 inline void setCheckState(int column, Qt::CheckState state)
165 { setData(column, Qt::CheckStateRole, state); }
166
167 inline QSize sizeHint(int column) const
168 { return qvariant_cast<QSize>(data(column, Qt::SizeHintRole)); }
169 inline void setSizeHint(int column, const QSize &size)
170 { setData(column, Qt::SizeHintRole, size); }
171
172 virtual QVariant data(int column, int role) const;
173 virtual void setData(int column, int role, const QVariant &value);
174
175 virtual bool operator<(const QTreeWidgetItem &other) const;
176
177#ifndef QT_NO_DATASTREAM
178 virtual void read(QDataStream &in);
179 virtual void write(QDataStream &out) const;
180#endif
181 QTreeWidgetItem &operator=(const QTreeWidgetItem &other);
182
183 inline QTreeWidgetItem *parent() const { return par; }
184 inline QTreeWidgetItem *child(int index) const {
185 if (index < 0 || index >= children.size())
186 return 0;
187 executePendingSort();
188 return children.at(index);
189 }
190 inline int childCount() const { return children.count(); }
191 inline int columnCount() const { return values.count(); }
192 inline int indexOfChild(QTreeWidgetItem *child) const;
193
194 void addChild(QTreeWidgetItem *child);
195 void insertChild(int index, QTreeWidgetItem *child);
196 void removeChild(QTreeWidgetItem *child);
197 QTreeWidgetItem *takeChild(int index);
198
199 void addChildren(const QList<QTreeWidgetItem*> &children);
200 void insertChildren(int index, const QList<QTreeWidgetItem*> &children);
201 QList<QTreeWidgetItem*> takeChildren();
202
203 inline int type() const { return rtti; }
204 inline void sortChildren(int column, Qt::SortOrder order)
205 { sortChildren(column, order, false); }
206
207protected:
208 void emitDataChanged();
209
210private:
211 void sortChildren(int column, Qt::SortOrder order, bool climb);
212 QVariant childrenCheckState(int column) const;
213 void itemChanged();
214 void executePendingSort() const;
215
216 int rtti;
217 // One item has a vector of column entries. Each column has a vector of (role, value) pairs.
218 QVector< QVector<QWidgetItemData> > values;
219 QTreeWidget *view;
220 QTreeWidgetItemPrivate *d;
221 QTreeWidgetItem *par;
222 QList<QTreeWidgetItem*> children;
223 Qt::ItemFlags itemFlags;
224};
225
226inline void QTreeWidgetItem::setText(int column, const QString &atext)
227{ setData(column, Qt::DisplayRole, atext); }
228
229inline void QTreeWidgetItem::setIcon(int column, const QIcon &aicon)
230{ setData(column, Qt::DecorationRole, aicon); }
231
232#ifndef QT_NO_STATUSTIP
233inline void QTreeWidgetItem::setStatusTip(int column, const QString &astatusTip)
234{ setData(column, Qt::StatusTipRole, astatusTip); }
235#endif
236
237#ifndef QT_NO_TOOLTIP
238inline void QTreeWidgetItem::setToolTip(int column, const QString &atoolTip)
239{ setData(column, Qt::ToolTipRole, atoolTip); }
240#endif
241
242#ifndef QT_NO_WHATSTHIS
243inline void QTreeWidgetItem::setWhatsThis(int column, const QString &awhatsThis)
244{ setData(column, Qt::WhatsThisRole, awhatsThis); }
245#endif
246
247inline void QTreeWidgetItem::setFont(int column, const QFont &afont)
248{ setData(column, Qt::FontRole, afont); }
249
250inline int QTreeWidgetItem::indexOfChild(QTreeWidgetItem *achild) const
251{ executePendingSort(); return children.indexOf(achild); }
252
253#ifndef QT_NO_DATASTREAM
254Q_GUI_EXPORT QDataStream &operator<<(QDataStream &out, const QTreeWidgetItem &item);
255Q_GUI_EXPORT QDataStream &operator>>(QDataStream &in, QTreeWidgetItem &item);
256#endif
257
258class QTreeWidgetPrivate;
259
260class Q_GUI_EXPORT QTreeWidget : public QTreeView
261{
262 Q_OBJECT
263 Q_PROPERTY(int columnCount READ columnCount WRITE setColumnCount)
264 Q_PROPERTY(int topLevelItemCount READ topLevelItemCount)
265
266 friend class QTreeModel;
267 friend class QTreeWidgetItem;
268public:
269 explicit QTreeWidget(QWidget *parent = 0);
270 ~QTreeWidget();
271
272 int columnCount() const;
273 void setColumnCount(int columns);
274
275 QTreeWidgetItem *invisibleRootItem() const;
276 QTreeWidgetItem *topLevelItem(int index) const;
277 int topLevelItemCount() const;
278 void insertTopLevelItem(int index, QTreeWidgetItem *item);
279 void addTopLevelItem(QTreeWidgetItem *item);
280 QTreeWidgetItem *takeTopLevelItem(int index);
281 int indexOfTopLevelItem(QTreeWidgetItem *item); // ### Qt 5: remove me
282 int indexOfTopLevelItem(QTreeWidgetItem *item) const;
283
284 void insertTopLevelItems(int index, const QList<QTreeWidgetItem*> &items);
285 void addTopLevelItems(const QList<QTreeWidgetItem*> &items);
286
287 QTreeWidgetItem *headerItem() const;
288 void setHeaderItem(QTreeWidgetItem *item);
289 void setHeaderLabels(const QStringList &labels);
290 inline void setHeaderLabel(const QString &label);
291
292 QTreeWidgetItem *currentItem() const;
293 int currentColumn() const;
294 void setCurrentItem(QTreeWidgetItem *item);
295 void setCurrentItem(QTreeWidgetItem *item, int column);
296 void setCurrentItem(QTreeWidgetItem *item, int column, QItemSelectionModel::SelectionFlags command);
297
298 QTreeWidgetItem *itemAt(const QPoint &p) const;
299 inline QTreeWidgetItem *itemAt(int x, int y) const;
300 QRect visualItemRect(const QTreeWidgetItem *item) const;
301
302 int sortColumn() const;
303 void sortItems(int column, Qt::SortOrder order);
304 void setSortingEnabled(bool enable);
305 bool isSortingEnabled() const;
306
307 void editItem(QTreeWidgetItem *item, int column = 0);
308 void openPersistentEditor(QTreeWidgetItem *item, int column = 0);
309 void closePersistentEditor(QTreeWidgetItem *item, int column = 0);
310
311 QWidget *itemWidget(QTreeWidgetItem *item, int column) const;
312 void setItemWidget(QTreeWidgetItem *item, int column, QWidget *widget);
313 inline void removeItemWidget(QTreeWidgetItem *item, int column);
314
315 bool isItemSelected(const QTreeWidgetItem *item) const;
316 void setItemSelected(const QTreeWidgetItem *item, bool select);
317 QList<QTreeWidgetItem*> selectedItems() const;
318 QList<QTreeWidgetItem*> findItems(const QString &text, Qt::MatchFlags flags,
319 int column = 0) const;
320
321 bool isItemHidden(const QTreeWidgetItem *item) const;
322 void setItemHidden(const QTreeWidgetItem *item, bool hide);
323
324 bool isItemExpanded(const QTreeWidgetItem *item) const;
325 void setItemExpanded(const QTreeWidgetItem *item, bool expand);
326
327 bool isFirstItemColumnSpanned(const QTreeWidgetItem *item) const;
328 void setFirstItemColumnSpanned(const QTreeWidgetItem *item, bool span);
329
330 QTreeWidgetItem *itemAbove(const QTreeWidgetItem *item) const;
331 QTreeWidgetItem *itemBelow(const QTreeWidgetItem *item) const;
332
333 void setSelectionModel(QItemSelectionModel *selectionModel);
334
335public Q_SLOTS:
336 void scrollToItem(const QTreeWidgetItem *item,
337 QAbstractItemView::ScrollHint hint = EnsureVisible);
338 void expandItem(const QTreeWidgetItem *item);
339 void collapseItem(const QTreeWidgetItem *item);
340 void clear();
341
342Q_SIGNALS:
343 void itemPressed(QTreeWidgetItem *item, int column);
344 void itemClicked(QTreeWidgetItem *item, int column);
345 void itemDoubleClicked(QTreeWidgetItem *item, int column);
346 void itemActivated(QTreeWidgetItem *item, int column);
347 void itemEntered(QTreeWidgetItem *item, int column);
348 void itemChanged(QTreeWidgetItem *item, int column);
349 void itemExpanded(QTreeWidgetItem *item);
350 void itemCollapsed(QTreeWidgetItem *item);
351 void currentItemChanged(QTreeWidgetItem *current, QTreeWidgetItem *previous);
352 void itemSelectionChanged();
353
354protected:
355 bool event(QEvent *e);
356 virtual QStringList mimeTypes() const;
357 virtual QMimeData *mimeData(const QList<QTreeWidgetItem*> items) const;
358 virtual bool dropMimeData(QTreeWidgetItem *parent, int index,
359 const QMimeData *data, Qt::DropAction action);
360 virtual Qt::DropActions supportedDropActions() const;
361 QList<QTreeWidgetItem*> items(const QMimeData *data) const;
362
363 QModelIndex indexFromItem(QTreeWidgetItem *item, int column = 0) const;
364 QTreeWidgetItem *itemFromIndex(const QModelIndex &index) const;
365 void dropEvent(QDropEvent *event);
366
367private:
368 void setModel(QAbstractItemModel *model);
369
370 Q_DECLARE_PRIVATE(QTreeWidget)
371 Q_DISABLE_COPY(QTreeWidget)
372
373 Q_PRIVATE_SLOT(d_func(), void _q_emitItemPressed(const QModelIndex &index))
374 Q_PRIVATE_SLOT(d_func(), void _q_emitItemClicked(const QModelIndex &index))
375 Q_PRIVATE_SLOT(d_func(), void _q_emitItemDoubleClicked(const QModelIndex &index))
376 Q_PRIVATE_SLOT(d_func(), void _q_emitItemActivated(const QModelIndex &index))
377 Q_PRIVATE_SLOT(d_func(), void _q_emitItemEntered(const QModelIndex &index))
378 Q_PRIVATE_SLOT(d_func(), void _q_emitItemChanged(const QModelIndex &index))
379 Q_PRIVATE_SLOT(d_func(), void _q_emitItemExpanded(const QModelIndex &index))
380 Q_PRIVATE_SLOT(d_func(), void _q_emitItemCollapsed(const QModelIndex &index))
381 Q_PRIVATE_SLOT(d_func(), void _q_emitCurrentItemChanged(const QModelIndex &previous, const QModelIndex &current))
382 Q_PRIVATE_SLOT(d_func(), void _q_sort())
383 Q_PRIVATE_SLOT(d_func(), void _q_dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight))
384 Q_PRIVATE_SLOT(d_func(), void _q_selectionChanged(const QItemSelection &selected, const QItemSelection &deselected))
385};
386
387inline void QTreeWidget::removeItemWidget(QTreeWidgetItem *item, int column)
388{ setItemWidget(item, column, 0); }
389
390inline QTreeWidgetItem *QTreeWidget::itemAt(int ax, int ay) const
391{ return itemAt(QPoint(ax, ay)); }
392
393inline void QTreeWidget::setHeaderLabel(const QString &alabel)
394{ setHeaderLabels(QStringList(alabel)); }
395
396inline void QTreeWidgetItem::setSelected(bool aselect)
397{ if (view) view->setItemSelected(this, aselect); }
398
399inline bool QTreeWidgetItem::isSelected() const
400{ return (view ? view->isItemSelected(this) : false); }
401
402inline void QTreeWidgetItem::setHidden(bool ahide)
403{ if (view) view->setItemHidden(this, ahide); }
404
405inline bool QTreeWidgetItem::isHidden() const
406{ return (view ? view->isItemHidden(this) : false); }
407
408inline void QTreeWidgetItem::setExpanded(bool aexpand)
409{ if (view) view->setItemExpanded(this, aexpand); }
410
411inline bool QTreeWidgetItem::isExpanded() const
412{ return (view ? view->isItemExpanded(this) : false); }
413
414inline void QTreeWidgetItem::setFirstColumnSpanned(bool aspan)
415{ if (view) view->setFirstItemColumnSpanned(this, aspan); }
416
417inline bool QTreeWidgetItem::isFirstColumnSpanned() const
418{ return (view ? view->isFirstItemColumnSpanned(this) : false); }
419
420inline void QTreeWidgetItem::setDisabled(bool disabled)
421{ setFlags(disabled ? (flags() & ~Qt::ItemIsEnabled) : flags() | Qt::ItemIsEnabled); }
422
423inline bool QTreeWidgetItem::isDisabled() const
424{ return !(flags() & Qt::ItemIsEnabled); }
425
426#endif // QT_NO_TREEWIDGET
427
428QT_END_NAMESPACE
429
430QT_END_HEADER
431
432#endif // QTREEWIDGET_H
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