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39
40#ifndef QHEADERVIEW_H
41#define QHEADERVIEW_H
42
43#include <QtWidgets/qtwidgetsglobal.h>
44#include <QtWidgets/qabstractitemview.h>
45
46QT_REQUIRE_CONFIG(itemviews);
47
48QT_BEGIN_NAMESPACE
49
50class QHeaderViewPrivate;
51class QStyleOptionHeader;
52
53class Q_WIDGETS_EXPORT QHeaderView : public QAbstractItemView
54{
55 Q_OBJECT
56 Q_PROPERTY(bool firstSectionMovable READ isFirstSectionMovable WRITE setFirstSectionMovable)
57 Q_PROPERTY(bool showSortIndicator READ isSortIndicatorShown WRITE setSortIndicatorShown)
58 Q_PROPERTY(bool highlightSections READ highlightSections WRITE setHighlightSections)
59 Q_PROPERTY(bool stretchLastSection READ stretchLastSection WRITE setStretchLastSection)
60 Q_PROPERTY(bool cascadingSectionResizes READ cascadingSectionResizes WRITE setCascadingSectionResizes)
61 Q_PROPERTY(int defaultSectionSize READ defaultSectionSize WRITE setDefaultSectionSize RESET resetDefaultSectionSize)
62 Q_PROPERTY(int minimumSectionSize READ minimumSectionSize WRITE setMinimumSectionSize)
63 Q_PROPERTY(int maximumSectionSize READ maximumSectionSize WRITE setMaximumSectionSize)
64 Q_PROPERTY(Qt::Alignment defaultAlignment READ defaultAlignment WRITE setDefaultAlignment)
65
66public:
67
68 enum ResizeMode
69 {
70 Interactive,
71 Stretch,
72 Fixed,
73 ResizeToContents,
74 Custom = Fixed
75 };
76 Q_ENUM(ResizeMode)
77
78 explicit QHeaderView(Qt::Orientation orientation, QWidget *parent = nullptr);
79 virtual ~QHeaderView();
80
81 void setModel(QAbstractItemModel *model) override;
82
83 Qt::Orientation orientation() const;
84 int offset() const;
85 int length() const;
86 QSize sizeHint() const override;
87 void setVisible(bool v) override;
88 int sectionSizeHint(int logicalIndex) const;
89
90 int visualIndexAt(int position) const;
91 int logicalIndexAt(int position) const;
92
93 inline int logicalIndexAt(int x, int y) const;
94 inline int logicalIndexAt(const QPoint &pos) const;
95
96 int sectionSize(int logicalIndex) const;
97 int sectionPosition(int logicalIndex) const;
98 int sectionViewportPosition(int logicalIndex) const;
99
100 void moveSection(int from, int to);
101 void swapSections(int first, int second);
102 void resizeSection(int logicalIndex, int size);
103 void resizeSections(QHeaderView::ResizeMode mode);
104
105 bool isSectionHidden(int logicalIndex) const;
106 void setSectionHidden(int logicalIndex, bool hide);
107 int hiddenSectionCount() const;
108
109 inline void hideSection(int logicalIndex);
110 inline void showSection(int logicalIndex);
111
112 int count() const;
113 int visualIndex(int logicalIndex) const;
114 int logicalIndex(int visualIndex) const;
115
116 void setSectionsMovable(bool movable);
117 bool sectionsMovable() const;
118#if QT_DEPRECATED_SINCE(5, 0)
119 inline QT_DEPRECATED void setMovable(bool movable) { setSectionsMovable(movable); }
120 inline QT_DEPRECATED bool isMovable() const { return sectionsMovable(); }
121#endif
122 void setFirstSectionMovable(bool movable);
123 bool isFirstSectionMovable() const;
124
125 void setSectionsClickable(bool clickable);
126 bool sectionsClickable() const;
127#if QT_DEPRECATED_SINCE(5, 0)
128 inline QT_DEPRECATED void setClickable(bool clickable) { setSectionsClickable(clickable); }
129 inline QT_DEPRECATED bool isClickable() const { return sectionsClickable(); }
130#endif
131
132 void setHighlightSections(bool highlight);
133 bool highlightSections() const;
134
135 ResizeMode sectionResizeMode(int logicalIndex) const;
136 void setSectionResizeMode(ResizeMode mode);
137 void setSectionResizeMode(int logicalIndex, ResizeMode mode);
138
139 void setResizeContentsPrecision(int precision);
140 int resizeContentsPrecision() const;
141
142#if QT_DEPRECATED_SINCE(5, 0)
143 inline QT_DEPRECATED void setResizeMode(ResizeMode mode)
144 { setSectionResizeMode(mode); }
145 inline QT_DEPRECATED void setResizeMode(int logicalindex, ResizeMode mode)
146 { setSectionResizeMode(logicalindex, mode); }
147 inline QT_DEPRECATED ResizeMode resizeMode(int logicalindex) const
148 { return sectionResizeMode(logicalindex); }
149#endif
150
151 int stretchSectionCount() const;
152
153 void setSortIndicatorShown(bool show);
154 bool isSortIndicatorShown() const;
155
156 void setSortIndicator(int logicalIndex, Qt::SortOrder order);
157 int sortIndicatorSection() const;
158 Qt::SortOrder sortIndicatorOrder() const;
159
160 bool stretchLastSection() const;
161 void setStretchLastSection(bool stretch);
162
163 bool cascadingSectionResizes() const;
164 void setCascadingSectionResizes(bool enable);
165
166 int defaultSectionSize() const;
167 void setDefaultSectionSize(int size);
168 void resetDefaultSectionSize();
169
170 int minimumSectionSize() const;
171 void setMinimumSectionSize(int size);
172 int maximumSectionSize() const;
173 void setMaximumSectionSize(int size);
174
175 Qt::Alignment defaultAlignment() const;
176 void setDefaultAlignment(Qt::Alignment alignment);
177
178 void doItemsLayout() override;
179 bool sectionsMoved() const;
180 bool sectionsHidden() const;
181
182#ifndef QT_NO_DATASTREAM
183 QByteArray saveState() const;
184 bool restoreState(const QByteArray &state);
185#endif
186
187 void reset() override;
188
189public Q_SLOTS:
190 void setOffset(int offset);
191 void setOffsetToSectionPosition(int visualIndex);
192 void setOffsetToLastSection();
193 void headerDataChanged(Qt::Orientation orientation, int logicalFirst, int logicalLast);
194
195Q_SIGNALS:
196 void sectionMoved(int logicalIndex, int oldVisualIndex, int newVisualIndex);
197 void sectionResized(int logicalIndex, int oldSize, int newSize);
198 void sectionPressed(int logicalIndex);
199 void sectionClicked(int logicalIndex);
200 void sectionEntered(int logicalIndex);
201 void sectionDoubleClicked(int logicalIndex);
202 void sectionCountChanged(int oldCount, int newCount);
203 void sectionHandleDoubleClicked(int logicalIndex);
204 void geometriesChanged();
205 void sortIndicatorChanged(int logicalIndex, Qt::SortOrder order);
206
207protected Q_SLOTS:
208 void updateSection(int logicalIndex);
209 void resizeSections();
210 void sectionsInserted(const QModelIndex &parent, int logicalFirst, int logicalLast);
211 void sectionsAboutToBeRemoved(const QModelIndex &parent, int logicalFirst, int logicalLast);
212
213protected:
214 QHeaderView(QHeaderViewPrivate &dd, Qt::Orientation orientation, QWidget *parent = nullptr);
215 void initialize();
216
217 void initializeSections();
218 void initializeSections(int start, int end);
219 void currentChanged(const QModelIndex &current, const QModelIndex &old) override;
220
221 bool event(QEvent *e) override;
222 void paintEvent(QPaintEvent *e) override;
223 void mousePressEvent(QMouseEvent *e) override;
224 void mouseMoveEvent(QMouseEvent *e) override;
225 void mouseReleaseEvent(QMouseEvent *e) override;
226 void mouseDoubleClickEvent(QMouseEvent *e) override;
227 bool viewportEvent(QEvent *e) override;
228
229 virtual void paintSection(QPainter *painter, const QRect &rect, int logicalIndex) const;
230 virtual QSize sectionSizeFromContents(int logicalIndex) const;
231
232 int horizontalOffset() const override;
233 int verticalOffset() const override;
234 void updateGeometries() override;
235 void scrollContentsBy(int dx, int dy) override;
236
237 void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int> &roles = QVector<int>()) override;
238 void rowsInserted(const QModelIndex &parent, int start, int end) override;
239
240 QRect visualRect(const QModelIndex &index) const override;
241 void scrollTo(const QModelIndex &index, ScrollHint hint) override;
242
243 QModelIndex indexAt(const QPoint &p) const override;
244 bool isIndexHidden(const QModelIndex &index) const override;
245
246 QModelIndex moveCursor(CursorAction, Qt::KeyboardModifiers) override;
247 void setSelection(const QRect& rect, QItemSelectionModel::SelectionFlags flags) override;
248 QRegion visualRegionForSelection(const QItemSelection &selection) const override;
249 void initStyleOption(QStyleOptionHeader *option) const;
250
251 friend class QTableView;
252 friend class QTreeView;
253
254private:
255 // ### Qt6: make them protected slots in QHeaderViewPrivate
256 Q_PRIVATE_SLOT(d_func(), void _q_sectionsRemoved(const QModelIndex &parent, int logicalFirst, int logicalLast))
257 Q_PRIVATE_SLOT(d_func(), void _q_sectionsAboutToBeMoved(const QModelIndex &sourceParent, int logicalStart, int logicalEnd, const QModelIndex &destinationParent, int logicalDestination))
258 Q_PRIVATE_SLOT(d_func(), void _q_sectionsMoved(const QModelIndex &sourceParent, int logicalStart, int logicalEnd, const QModelIndex &destinationParent, int logicalDestination))
259 Q_PRIVATE_SLOT(d_func(), void _q_sectionsAboutToBeChanged(const QList<QPersistentModelIndex> &parents = QList<QPersistentModelIndex>(),
260 QAbstractItemModel::LayoutChangeHint hint = QAbstractItemModel::NoLayoutChangeHint))
261 Q_PRIVATE_SLOT(d_func(), void _q_sectionsChanged(const QList<QPersistentModelIndex> &parents = QList<QPersistentModelIndex>(),
262 QAbstractItemModel::LayoutChangeHint hint = QAbstractItemModel::NoLayoutChangeHint))
263 Q_DECLARE_PRIVATE(QHeaderView)
264 Q_DISABLE_COPY(QHeaderView)
265};
266
267inline int QHeaderView::logicalIndexAt(int ax, int ay) const
268{ return orientation() == Qt::Horizontal ? logicalIndexAt(position: ax) : logicalIndexAt(position: ay); }
269inline int QHeaderView::logicalIndexAt(const QPoint &apos) const
270{ return logicalIndexAt(ax: apos.x(), ay: apos.y()); }
271inline void QHeaderView::hideSection(int alogicalIndex)
272{ setSectionHidden(logicalIndex: alogicalIndex, hide: true); }
273inline void QHeaderView::showSection(int alogicalIndex)
274{ setSectionHidden(logicalIndex: alogicalIndex, hide: false); }
275
276QT_END_NAMESPACE
277
278#endif // QHEADERVIEW_H
279

source code of qtbase/src/widgets/itemviews/qheaderview.h