Qt 4.8
qimagepixmapcleanuphooks_p.h
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41 
42 #ifndef QIMAGEPIXMAP_CLEANUPHOOKS_P_H
43 #define QIMAGEPIXMAP_CLEANUPHOOKS_P_H
44 
45 //
46 // W A R N I N G
47 // -------------
48 //
49 // This file is not part of the Qt API. It exists purely as an
50 // implementation detail. This header file may change from version to
51 // version without notice, or even be removed.
52 //
53 // We mean it.
54 //
55 
56 #include <QtGui/qpixmap.h>
57 
59 
62 
63 
65 
67 {
68 public:
69  static QImagePixmapCleanupHooks *instance();
70 
71  static void enableCleanupHooks(const QImage &image);
72  static void enableCleanupHooks(const QPixmap &pixmap);
73  static void enableCleanupHooks(QPixmapData *pixmapData);
74 
75  static bool isImageCached(const QImage &image);
76  static bool isPixmapCached(const QPixmap &pixmap);
77 
78  // Gets called when a pixmap data is about to be modified:
79  void addPixmapDataModificationHook(_qt_pixmap_cleanup_hook_pmd);
80 
81  // Gets called when a pixmap data is about to be destroyed:
82  void addPixmapDataDestructionHook(_qt_pixmap_cleanup_hook_pmd);
83 
84  // Gets called when an image is about to be modified or destroyed:
85  void addImageHook(_qt_image_cleanup_hook_64);
86 
87  void removePixmapDataModificationHook(_qt_pixmap_cleanup_hook_pmd);
88  void removePixmapDataDestructionHook(_qt_pixmap_cleanup_hook_pmd);
89  void removeImageHook(_qt_image_cleanup_hook_64);
90 
91  static void executePixmapDataModificationHooks(QPixmapData*);
92  static void executePixmapDataDestructionHooks(QPixmapData*);
93  static void executeImageHooks(qint64 key);
94 
95 private:
99 };
100 
102 
103 #endif // QIMAGEPIXMAP_CLEANUPHOOKS_P_H
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
#define Q_GUI_EXPORT
Definition: qglobal.h:1450
QList< _qt_pixmap_cleanup_hook_pmd > pixmapModificationHooks
void(* _qt_image_cleanup_hook_64)(qint64)
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
The QImage class provides a hardware-independent image representation that allows direct access to th...
Definition: qimage.h:87
__int64 qint64
Definition: qglobal.h:942
QList< _qt_image_cleanup_hook_64 > imageHooks
int key
QList< _qt_pixmap_cleanup_hook_pmd > pixmapDestructionHooks
The QPixmap class is an off-screen image representation that can be used as a paint device...
Definition: qpixmap.h:71
void(* _qt_pixmap_cleanup_hook_pmd)(QPixmapData *)