qquickpainteditem.h 4.7 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 QtQuick 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
  14. ** and conditions see https://www.qt.io/terms-conditions. For further
  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 QQUICKPAINTEDITEM_P_H
  40. #define QQUICKPAINTEDITEM_P_H
  41. #include <QtQuick/qquickitem.h>
  42. #include <QtGui/qcolor.h>
  43. QT_BEGIN_NAMESPACE
  44. class QQuickPaintedItemPrivate;
  45. class Q_QUICK_EXPORT QQuickPaintedItem : public QQuickItem
  46. {
  47. Q_OBJECT
  48. Q_PROPERTY(QSize contentsSize READ contentsSize WRITE setContentsSize NOTIFY contentsSizeChanged)
  49. Q_PROPERTY(QColor fillColor READ fillColor WRITE setFillColor NOTIFY fillColorChanged)
  50. Q_PROPERTY(qreal contentsScale READ contentsScale WRITE setContentsScale NOTIFY contentsScaleChanged)
  51. Q_PROPERTY(RenderTarget renderTarget READ renderTarget WRITE setRenderTarget NOTIFY renderTargetChanged)
  52. Q_PROPERTY(QSize textureSize READ textureSize WRITE setTextureSize NOTIFY textureSizeChanged)
  53. public:
  54. explicit QQuickPaintedItem(QQuickItem *parent = Q_NULLPTR);
  55. virtual ~QQuickPaintedItem();
  56. enum RenderTarget {
  57. Image,
  58. FramebufferObject,
  59. InvertedYFramebufferObject
  60. };
  61. Q_ENUM(RenderTarget)
  62. enum PerformanceHint {
  63. FastFBOResizing = 0x1
  64. };
  65. Q_DECLARE_FLAGS(PerformanceHints, PerformanceHint)
  66. void update(const QRect &rect = QRect());
  67. bool opaquePainting() const;
  68. void setOpaquePainting(bool opaque);
  69. bool antialiasing() const;
  70. void setAntialiasing(bool enable);
  71. bool mipmap() const;
  72. void setMipmap(bool enable);
  73. PerformanceHints performanceHints() const;
  74. void setPerformanceHint(PerformanceHint hint, bool enabled = true);
  75. void setPerformanceHints(PerformanceHints hints);
  76. QRectF contentsBoundingRect() const;
  77. QSize contentsSize() const;
  78. void setContentsSize(const QSize &);
  79. void resetContentsSize();
  80. qreal contentsScale() const;
  81. void setContentsScale(qreal);
  82. QSize textureSize() const;
  83. void setTextureSize(const QSize &size);
  84. QColor fillColor() const;
  85. void setFillColor(const QColor&);
  86. RenderTarget renderTarget() const;
  87. void setRenderTarget(RenderTarget target);
  88. virtual void paint(QPainter *painter) = 0;
  89. bool isTextureProvider() const Q_DECL_OVERRIDE;
  90. QSGTextureProvider *textureProvider() const Q_DECL_OVERRIDE;
  91. Q_SIGNALS:
  92. void fillColorChanged();
  93. void contentsSizeChanged();
  94. void contentsScaleChanged();
  95. void renderTargetChanged();
  96. void textureSizeChanged();
  97. protected:
  98. QQuickPaintedItem(QQuickPaintedItemPrivate &dd, QQuickItem *parent = Q_NULLPTR);
  99. QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *) Q_DECL_OVERRIDE;
  100. void releaseResources() Q_DECL_OVERRIDE;
  101. void itemChange(ItemChange, const ItemChangeData &) Q_DECL_OVERRIDE;
  102. private Q_SLOTS:
  103. void invalidateSceneGraph();
  104. private:
  105. Q_DISABLE_COPY(QQuickPaintedItem)
  106. Q_DECLARE_PRIVATE(QQuickPaintedItem)
  107. };
  108. Q_DECLARE_OPERATORS_FOR_FLAGS(QQuickPaintedItem::PerformanceHints)
  109. QT_END_NAMESPACE
  110. #endif // QQUICKPAINTEDITEM_P_H