| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #ifndef QIMAGEPIXMAP_CLEANUPHOOKS_P_H |
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| 5 | #define QIMAGEPIXMAP_CLEANUPHOOKS_P_H |
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| 6 | |
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| 7 | // |
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| 8 | // W A R N I N G |
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| 9 | // ------------- |
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| 10 | // |
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| 11 | // This file is not part of the Qt API. It exists purely as an |
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| 12 | // implementation detail. This header file may change from version to |
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| 13 | // version without notice, or even be removed. |
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| 14 | // |
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| 15 | // We mean it. |
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| 16 | // |
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| 17 | |
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| 18 | #include <QtGui/private/qtguiglobal_p.h> |
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| 19 | #include <QtGui/qpixmap.h> |
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| 20 | |
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| 21 | QT_BEGIN_NAMESPACE |
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| 22 | |
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| 23 | typedef void (*_qt_image_cleanup_hook_64)(qint64); |
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| 24 | typedef void (*_qt_pixmap_cleanup_hook_pmd)(QPlatformPixmap*); |
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| 25 | |
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| 26 | |
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| 27 | class QImagePixmapCleanupHooks; |
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| 28 | |
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| 29 | class Q_GUI_EXPORT QImagePixmapCleanupHooks |
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| 30 | { |
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| 31 | public: |
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| 32 | static QImagePixmapCleanupHooks *instance(); |
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| 33 | |
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| 34 | static void enableCleanupHooks(const QImage &image); |
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| 35 | static void enableCleanupHooks(const QPixmap &pixmap); |
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| 36 | static void enableCleanupHooks(QPlatformPixmap *handle); |
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| 37 | |
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| 38 | static bool isImageCached(const QImage &image); |
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| 39 | static bool isPixmapCached(const QPixmap &pixmap); |
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| 40 | |
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| 41 | // Gets called when a pixmap data is about to be modified: |
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| 42 | void addPlatformPixmapModificationHook(_qt_pixmap_cleanup_hook_pmd); |
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| 43 | |
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| 44 | // Gets called when a pixmap data is about to be destroyed: |
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| 45 | void addPlatformPixmapDestructionHook(_qt_pixmap_cleanup_hook_pmd); |
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| 46 | |
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| 47 | // Gets called when an image is about to be modified or destroyed: |
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| 48 | void addImageHook(_qt_image_cleanup_hook_64); |
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| 49 | |
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| 50 | void removePlatformPixmapModificationHook(_qt_pixmap_cleanup_hook_pmd); |
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| 51 | void removePlatformPixmapDestructionHook(_qt_pixmap_cleanup_hook_pmd); |
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| 52 | void removeImageHook(_qt_image_cleanup_hook_64); |
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| 53 | |
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| 54 | static void executePlatformPixmapModificationHooks(QPlatformPixmap*); |
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| 55 | static void executePlatformPixmapDestructionHooks(QPlatformPixmap*); |
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| 56 | static void executeImageHooks(qint64 key); |
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| 57 | |
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| 58 | private: |
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| 59 | QList<_qt_image_cleanup_hook_64> imageHooks; |
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| 60 | QList<_qt_pixmap_cleanup_hook_pmd> pixmapModificationHooks; |
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| 61 | QList<_qt_pixmap_cleanup_hook_pmd> pixmapDestructionHooks; |
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| 62 | }; |
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| 63 | |
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| 64 | QT_END_NAMESPACE |
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| 65 | |
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| 66 | #endif // QIMAGEPIXMAP_CLEANUPHOOKS_P_H |
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| 67 | |
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