qitemdelegate.h 5.4 KB

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  1. /****************************************************************************
  2. **
  3. ** Copyright (C) 2016 The Qt Company Ltd.
  4. ** Contact: https://www.qt.io/licensing/
  5. **
  6. ** This file is part of the QtWidgets module of the Qt Toolkit.
  7. **
  8. ** $QT_BEGIN_LICENSE:LGPL$
  9. ** Commercial License Usage
  10. ** Licensees holding valid commercial Qt licenses may use this file in
  11. ** accordance with the commercial license agreement provided with the
  12. ** Software or, alternatively, in accordance with the terms contained in
  13. ** a written agreement between you and The Qt Company. For licensing terms
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  15. ** information use the contact form at https://www.qt.io/contact-us.
  16. **
  17. ** GNU Lesser General Public License Usage
  18. ** Alternatively, this file may be used under the terms of the GNU Lesser
  19. ** General Public License version 3 as published by the Free Software
  20. ** Foundation and appearing in the file LICENSE.LGPL3 included in the
  21. ** packaging of this file. Please review the following information to
  22. ** ensure the GNU Lesser General Public License version 3 requirements
  23. ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
  24. **
  25. ** GNU General Public License Usage
  26. ** Alternatively, this file may be used under the terms of the GNU
  27. ** General Public License version 2.0 or (at your option) the GNU General
  28. ** Public license version 3 or any later version approved by the KDE Free
  29. ** Qt Foundation. The licenses are as published by the Free Software
  30. ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
  31. ** included in the packaging of this file. Please review the following
  32. ** information to ensure the GNU General Public License requirements will
  33. ** be met: https://www.gnu.org/licenses/gpl-2.0.html and
  34. ** https://www.gnu.org/licenses/gpl-3.0.html.
  35. **
  36. ** $QT_END_LICENSE$
  37. **
  38. ****************************************************************************/
  39. #ifndef QITEMDELEGATE_H
  40. #define QITEMDELEGATE_H
  41. #include <QtWidgets/qabstractitemdelegate.h>
  42. #include <QtCore/qstring.h>
  43. #include <QtGui/qpixmap.h>
  44. #include <QtCore/qvariant.h>
  45. QT_BEGIN_NAMESPACE
  46. #ifndef QT_NO_ITEMVIEWS
  47. class QItemDelegatePrivate;
  48. class QItemEditorFactory;
  49. class Q_WIDGETS_EXPORT QItemDelegate : public QAbstractItemDelegate
  50. {
  51. Q_OBJECT
  52. Q_PROPERTY(bool clipping READ hasClipping WRITE setClipping)
  53. public:
  54. explicit QItemDelegate(QObject *parent = Q_NULLPTR);
  55. ~QItemDelegate();
  56. bool hasClipping() const;
  57. void setClipping(bool clip);
  58. // painting
  59. void paint(QPainter *painter,
  60. const QStyleOptionViewItem &option,
  61. const QModelIndex &index) const Q_DECL_OVERRIDE;
  62. QSize sizeHint(const QStyleOptionViewItem &option,
  63. const QModelIndex &index) const Q_DECL_OVERRIDE;
  64. // editing
  65. QWidget *createEditor(QWidget *parent,
  66. const QStyleOptionViewItem &option,
  67. const QModelIndex &index) const Q_DECL_OVERRIDE;
  68. void setEditorData(QWidget *editor, const QModelIndex &index) const Q_DECL_OVERRIDE;
  69. void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const Q_DECL_OVERRIDE;
  70. void updateEditorGeometry(QWidget *editor,
  71. const QStyleOptionViewItem &option,
  72. const QModelIndex &index) const Q_DECL_OVERRIDE;
  73. // editor factory
  74. QItemEditorFactory *itemEditorFactory() const;
  75. void setItemEditorFactory(QItemEditorFactory *factory);
  76. protected:
  77. virtual void drawDisplay(QPainter *painter, const QStyleOptionViewItem &option,
  78. const QRect &rect, const QString &text) const;
  79. virtual void drawDecoration(QPainter *painter, const QStyleOptionViewItem &option,
  80. const QRect &rect, const QPixmap &pixmap) const;
  81. virtual void drawFocus(QPainter *painter, const QStyleOptionViewItem &option,
  82. const QRect &rect) const;
  83. virtual void drawCheck(QPainter *painter, const QStyleOptionViewItem &option,
  84. const QRect &rect, Qt::CheckState state) const;
  85. void drawBackground(QPainter *painter, const QStyleOptionViewItem &option,
  86. const QModelIndex &index) const;
  87. void doLayout(const QStyleOptionViewItem &option,
  88. QRect *checkRect, QRect *iconRect, QRect *textRect, bool hint) const;
  89. QRect rect(const QStyleOptionViewItem &option, const QModelIndex &index, int role) const;
  90. bool eventFilter(QObject *object, QEvent *event) Q_DECL_OVERRIDE;
  91. bool editorEvent(QEvent *event, QAbstractItemModel *model,
  92. const QStyleOptionViewItem &option, const QModelIndex &index) Q_DECL_OVERRIDE;
  93. QStyleOptionViewItem setOptions(const QModelIndex &index,
  94. const QStyleOptionViewItem &option) const;
  95. QPixmap decoration(const QStyleOptionViewItem &option, const QVariant &variant) const;
  96. QPixmap *selected(const QPixmap &pixmap, const QPalette &palette, bool enabled) const;
  97. QRect doCheck(const QStyleOptionViewItem &option, const QRect &bounding,
  98. const QVariant &variant) const;
  99. QRect textRectangle(QPainter *painter, const QRect &rect,
  100. const QFont &font, const QString &text) const;
  101. private:
  102. Q_DECLARE_PRIVATE(QItemDelegate)
  103. Q_DISABLE_COPY(QItemDelegate)
  104. };
  105. #endif // QT_NO_ITEMVIEWS
  106. QT_END_NAMESPACE
  107. #endif // QITEMDELEGATE_H