qstylepainter.h 4.1 KB

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  1. /****************************************************************************
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  3. ** Copyright (C) 2016 The Qt Company Ltd.
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  5. **
  6. ** This file is part of the QtWidgets module of the Qt Toolkit.
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  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
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  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
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  31. ** included in the packaging of this file. Please review the following
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  34. ** https://www.gnu.org/licenses/gpl-3.0.html.
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  36. ** $QT_END_LICENSE$
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  38. ****************************************************************************/
  39. #ifndef QSTYLEPAINTER_H
  40. #define QSTYLEPAINTER_H
  41. #include <QtGui/qpainter.h>
  42. #include <QtWidgets/qstyle.h>
  43. #include <QtWidgets/qwidget.h>
  44. QT_BEGIN_NAMESPACE
  45. class QStylePainter : public QPainter
  46. {
  47. public:
  48. inline QStylePainter() : QPainter(), widget(Q_NULLPTR), wstyle(Q_NULLPTR) {}
  49. inline explicit QStylePainter(QWidget *w) { begin(w, w); }
  50. inline QStylePainter(QPaintDevice *pd, QWidget *w) { begin(pd, w); }
  51. inline bool begin(QWidget *w) { return begin(w, w); }
  52. inline bool begin(QPaintDevice *pd, QWidget *w) {
  53. Q_ASSERT_X(w, "QStylePainter::QStylePainter", "Widget must be non-zero");
  54. widget = w;
  55. wstyle = w->style();
  56. return QPainter::begin(pd);
  57. };
  58. inline void drawPrimitive(QStyle::PrimitiveElement pe, const QStyleOption &opt);
  59. inline void drawControl(QStyle::ControlElement ce, const QStyleOption &opt);
  60. inline void drawComplexControl(QStyle::ComplexControl cc, const QStyleOptionComplex &opt);
  61. inline void drawItemText(const QRect &r, int flags, const QPalette &pal, bool enabled,
  62. const QString &text, QPalette::ColorRole textRole = QPalette::NoRole);
  63. inline void drawItemPixmap(const QRect &r, int flags, const QPixmap &pixmap);
  64. inline QStyle *style() const { return wstyle; }
  65. private:
  66. QWidget *widget;
  67. QStyle *wstyle;
  68. Q_DISABLE_COPY(QStylePainter)
  69. };
  70. void QStylePainter::drawPrimitive(QStyle::PrimitiveElement pe, const QStyleOption &opt)
  71. {
  72. wstyle->drawPrimitive(pe, &opt, this, widget);
  73. }
  74. void QStylePainter::drawControl(QStyle::ControlElement ce, const QStyleOption &opt)
  75. {
  76. wstyle->drawControl(ce, &opt, this, widget);
  77. }
  78. void QStylePainter::drawComplexControl(QStyle::ComplexControl cc, const QStyleOptionComplex &opt)
  79. {
  80. wstyle->drawComplexControl(cc, &opt, this, widget);
  81. }
  82. void QStylePainter::drawItemText(const QRect &r, int flags, const QPalette &pal, bool enabled,
  83. const QString &text, QPalette::ColorRole textRole)
  84. {
  85. wstyle->drawItemText(this, r, flags, pal, enabled, text, textRole);
  86. }
  87. void QStylePainter::drawItemPixmap(const QRect &r, int flags, const QPixmap &pixmap)
  88. {
  89. wstyle->drawItemPixmap(this, r, flags, pixmap);
  90. }
  91. QT_END_NAMESPACE
  92. #endif // QSTYLEPAINTER_H