Qt 4.8
qblittable_p.h
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41 
42 #ifndef QBLITTABLE_P_H
43 #define QBLITTABLE_P_H
44 
45 #include <QtCore/qsize.h>
46 #include <QtGui/private/qpixmap_blitter_p.h>
47 
48 
49 #ifndef QT_NO_BLITTABLE
51 
52 class QImage;
53 class QBlittablePrivate;
54 
56 {
58 public:
59  enum Capability {
60 
61  SolidRectCapability = 0x0001,
62  SourcePixmapCapability = 0x0002,
63  SourceOverPixmapCapability = 0x0004,
64  SourceOverScaledPixmapCapability = 0x0008,
65  AlphaFillRectCapability = 0x0010,
66  OpacityPixmapCapability = 0x0020,
67 
68  // Internal ones
69  OutlineCapability = 0x0001000,
70  };
71  Q_DECLARE_FLAGS (Capabilities, Capability);
72 
73  QBlittable(const QSize &size, Capabilities caps);
74  virtual ~QBlittable();
75 
76  Capabilities capabilities() const;
77  QSize size() const;
78 
79  virtual void fillRect(const QRectF &rect, const QColor &color) = 0;
80  virtual void drawPixmap(const QRectF &rect, const QPixmap &pixmap, const QRectF &subrect) = 0;
81  virtual void alphaFillRect(const QRectF &rect, const QColor &color, QPainter::CompositionMode cmode) {
82  Q_UNUSED(rect);
83  Q_UNUSED(color);
84  Q_UNUSED(cmode);
85  qWarning("Please implement alphaFillRect function in your platform or remove AlphaFillRectCapability from it");
86  }
87  virtual void drawPixmapOpacity(const QRectF &rect, const QPixmap &pixmap, const QRectF &subrect, QPainter::CompositionMode cmode, qreal opacity) {
88  Q_UNUSED(rect);
89  Q_UNUSED(pixmap);
90  Q_UNUSED(subrect);
91  Q_UNUSED(cmode);
92  Q_UNUSED(opacity);
93  qWarning("Please implement drawPixmapOpacity function in your platform or remove OpacityPixmapCapability from it");
94  }
95 
96 
97  bool isLocked() const;
98 
99  QImage *lock();
100  void unlock();
101 
102 protected:
103  virtual QImage *doLock() = 0;
104  virtual void doUnlock() = 0;
106 };
107 
109 #endif //QT_NO_BLITTABLE
110 #endif //QBLITTABLE_P_H
The QColor class provides colors based on RGB, HSV or CMYK values.
Definition: qcolor.h:67
double qreal
Definition: qglobal.h:1193
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
CompositionMode
Defines the modes supported for digital image compositing.
Definition: qpainter.h:138
#define Q_DECLARE_FLAGS(Flags, Enum)
The Q_DECLARE_FLAGS() macro expands to.
Definition: qglobal.h:2348
#define Q_GUI_EXPORT
Definition: qglobal.h:1450
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
QBlittablePrivate * d_ptr
Definition: qblittable_p.h:105
The QRectF class defines a rectangle in the plane using floating point precision. ...
Definition: qrect.h:511
Q_CORE_EXPORT void qWarning(const char *,...)
The QImage class provides a hardware-independent image representation that allows direct access to th...
Definition: qimage.h:87
virtual void alphaFillRect(const QRectF &rect, const QColor &color, QPainter::CompositionMode cmode)
Definition: qblittable_p.h:81
static QReadWriteLock lock
Definition: proxyconf.cpp:399
The QPixmap class is an off-screen image representation that can be used as a paint device...
Definition: qpixmap.h:71
The QSize class defines the size of a two-dimensional object using integer point precision.
Definition: qsize.h:53
#define Q_DECLARE_PRIVATE(Class)
Definition: qglobal.h:2467
virtual void drawPixmapOpacity(const QRectF &rect, const QPixmap &pixmap, const QRectF &subrect, QPainter::CompositionMode cmode, qreal opacity)
Definition: qblittable_p.h:87
#define Q_UNUSED(x)
Indicates to the compiler that the parameter with the specified name is not used in the body of a fun...
Definition: qglobal.h:1729