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39 | |
40 | #ifndef QIMAGEPIXMAP_CLEANUPHOOKS_P_H |
41 | #define QIMAGEPIXMAP_CLEANUPHOOKS_P_H |
42 | |
43 | // |
44 | // W A R N I N G |
45 | // ------------- |
46 | // |
47 | // This file is not part of the Qt API. It exists purely as an |
48 | // implementation detail. This header file may change from version to |
49 | // version without notice, or even be removed. |
50 | // |
51 | // We mean it. |
52 | // |
53 | |
54 | #include <QtGui/private/qtguiglobal_p.h> |
55 | #include <QtGui/qpixmap.h> |
56 | |
57 | QT_BEGIN_NAMESPACE |
58 | |
59 | typedef void (*_qt_image_cleanup_hook_64)(qint64); |
60 | typedef void (*_qt_pixmap_cleanup_hook_pmd)(QPlatformPixmap*); |
61 | |
62 | |
63 | class QImagePixmapCleanupHooks; |
64 | |
65 | class Q_GUI_EXPORT QImagePixmapCleanupHooks |
66 | { |
67 | public: |
68 | static QImagePixmapCleanupHooks *instance(); |
69 | |
70 | static void enableCleanupHooks(const QImage &image); |
71 | static void enableCleanupHooks(const QPixmap &pixmap); |
72 | static void enableCleanupHooks(QPlatformPixmap *handle); |
73 | |
74 | static bool isImageCached(const QImage &image); |
75 | static bool isPixmapCached(const QPixmap &pixmap); |
76 | |
77 | // Gets called when a pixmap data is about to be modified: |
78 | void addPlatformPixmapModificationHook(_qt_pixmap_cleanup_hook_pmd); |
79 | |
80 | // Gets called when a pixmap data is about to be destroyed: |
81 | void addPlatformPixmapDestructionHook(_qt_pixmap_cleanup_hook_pmd); |
82 | |
83 | // Gets called when an image is about to be modified or destroyed: |
84 | void addImageHook(_qt_image_cleanup_hook_64); |
85 | |
86 | void removePlatformPixmapModificationHook(_qt_pixmap_cleanup_hook_pmd); |
87 | void removePlatformPixmapDestructionHook(_qt_pixmap_cleanup_hook_pmd); |
88 | void removeImageHook(_qt_image_cleanup_hook_64); |
89 | |
90 | static void executePlatformPixmapModificationHooks(QPlatformPixmap*); |
91 | static void executePlatformPixmapDestructionHooks(QPlatformPixmap*); |
92 | static void executeImageHooks(qint64 key); |
93 | |
94 | private: |
95 | QList<_qt_image_cleanup_hook_64> imageHooks; |
96 | QList<_qt_pixmap_cleanup_hook_pmd> pixmapModificationHooks; |
97 | QList<_qt_pixmap_cleanup_hook_pmd> pixmapDestructionHooks; |
98 | }; |
99 | |
100 | QT_END_NAMESPACE |
101 | |
102 | #endif // QIMAGEPIXMAP_CLEANUPHOOKS_P_H |
103 | |