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39 
40 #ifndef QOFFSCREENCOMMON_H
41 #define QOFFSCREENCOMMON_H
42 
43 #include <qpa/qplatformbackingstore.h>
44 #if QT_CONFIG(draganddrop)
45 #include <qpa/qplatformdrag.h>
46 #endif
47 #include <qpa/qplatformintegration.h>
48 #include <qpa/qplatformnativeinterface.h>
49 #include <qpa/qplatformscreen.h>
50 #include <qpa/qplatformwindow.h>
51 
52 #include <qscopedpointer.h>
53 #include <qimage.h>
54 #include <qhash.h>
55 
56 QT_BEGIN_NAMESPACE
57 
58 class QOffscreenScreen : public QPlatformScreen
59 {
60 public:
61     QOffscreenScreen();
62 
geometry()63     QRect geometry() const override { return m_geometry; }
depth()64     int depth() const override { return 32; }
format()65     QImage::Format format() const override { return QImage::Format_RGB32; }
cursor()66     QPlatformCursor *cursor() const override { return m_cursor.data(); }
67 
68     QPixmap grabWindow(WId window, int x, int y, int width, int height) const override;
69 
70     static QPlatformWindow *windowContainingCursor;
71 
72 public:
73     QRect m_geometry;
74     QScopedPointer<QPlatformCursor> m_cursor;
75 };
76 
77 #if QT_CONFIG(draganddrop)
78 class QOffscreenDrag : public QPlatformDrag
79 {
80 public:
drag(QDrag *)81     Qt::DropAction drag(QDrag *) override { return Qt::IgnoreAction; }
82 };
83 #endif
84 
85 class QOffscreenBackingStore : public QPlatformBackingStore
86 {
87 public:
88     QOffscreenBackingStore(QWindow *window);
89     ~QOffscreenBackingStore();
90 
91     QPaintDevice *paintDevice() override;
92     void flush(QWindow *window, const QRegion &region, const QPoint &offset) override;
93     void resize(const QSize &size, const QRegion &staticContents) override;
94     bool scroll(const QRegion &area, int dx, int dy) override;
95 
96     QPixmap grabWindow(WId window, const QRect &rect) const;
97 
98     static QOffscreenBackingStore *backingStoreForWinId(WId id);
99 
100 private:
101     void clearHash();
102 
103     QImage m_image;
104     QHash<WId, QRect> m_windowAreaHash;
105 
106     static QHash<WId, QOffscreenBackingStore *> m_backingStoreForWinIdHash;
107 };
108 
109 class QOffscreenPlatformNativeInterface : public QPlatformNativeInterface
110 {
111 public:
112     ~QOffscreenPlatformNativeInterface();
113 };
114 
115 QT_END_NAMESPACE
116 
117 #endif
118