1 /****************************************************************************
3 ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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5 ** Contact: Nokia Corporation (qt-info@nokia.com)
7 ** This file is part of the QtGui module of the Qt Toolkit.
9 ** $QT_BEGIN_LICENSE:LGPL$
10 ** GNU Lesser General Public License Usage
11 ** This file may be used under the terms of the GNU Lesser General Public
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13 ** appearing in the file LICENSE.LGPL included in the packaging of this
14 ** file. Please review the following information to ensure the GNU Lesser
15 ** General Public License version 2.1 requirements will be met:
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18 ** In addition, as a special exception, Nokia gives you certain additional
19 ** rights. These rights are described in the Nokia Qt LGPL Exception
20 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
22 ** GNU General Public License Usage
23 ** Alternatively, this file may be used under the terms of the GNU General
24 ** Public License version 3.0 as published by the Free Software Foundation
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26 ** file. Please review the following information to ensure the GNU General
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40 ****************************************************************************/
42 #ifndef QPAINTDEVICE_H
43 #define QPAINTDEVICE_H
45 #include <QtGui/qwindowdefs.h>
46 #include <QtCore/qrect.h>
60 class Q_GUI_EXPORT QPaintDevice // device for QPainter
63 enum PaintDeviceMetric {
76 virtual ~QPaintDevice();
78 virtual int devType() const;
79 bool paintingActive() const;
80 virtual QPaintEngine *paintEngine() const = 0;
83 static QWSDisplay *qwsDisplay();
87 virtual HDC getDC() const;
88 virtual void releaseDC(HDC hdc) const;
91 int width() const { return metric(PdmWidth); }
92 int height() const { return metric(PdmHeight); }
93 int widthMM() const { return metric(PdmWidthMM); }
94 int heightMM() const { return metric(PdmHeightMM); }
95 int logicalDpiX() const { return metric(PdmDpiX); }
96 int logicalDpiY() const { return metric(PdmDpiY); }
97 int physicalDpiX() const { return metric(PdmPhysicalDpiX); }
98 int physicalDpiY() const { return metric(PdmPhysicalDpiY); }
100 QT_DEPRECATED int numColors() const { return metric(PdmNumColors); }
102 int colorCount() const { return metric(PdmNumColors); }
103 int depth() const { return metric(PdmDepth); }
107 virtual int metric(PaintDeviceMetric metric) const;
109 ushort painters; // refcount
112 Q_DISABLE_COPY(QPaintDevice)
114 #if defined(Q_WS_X11) && defined(QT3_SUPPORT)
116 QT3_SUPPORT Display *x11Display() const;
117 QT3_SUPPORT int x11Screen() const;
118 QT3_SUPPORT int x11Depth() const;
119 QT3_SUPPORT int x11Cells() const;
120 QT3_SUPPORT Qt::HANDLE x11Colormap() const;
121 QT3_SUPPORT bool x11DefaultColormap() const;
122 QT3_SUPPORT void *x11Visual() const;
123 QT3_SUPPORT bool x11DefaultVisual() const;
125 static QT3_SUPPORT Display *x11AppDisplay();
126 static QT3_SUPPORT int x11AppScreen();
127 static QT3_SUPPORT int x11AppDepth(int screen = -1);
128 static QT3_SUPPORT int x11AppCells(int screen = -1);
129 static QT3_SUPPORT Qt::HANDLE x11AppRootWindow(int screen = -1);
130 static QT3_SUPPORT Qt::HANDLE x11AppColormap(int screen = -1);
131 static QT3_SUPPORT void *x11AppVisual(int screen = -1);
132 static QT3_SUPPORT bool x11AppDefaultColormap(int screen =-1);
133 static QT3_SUPPORT bool x11AppDefaultVisual(int screen =-1);
134 static QT3_SUPPORT int x11AppDpiX(int screen = -1);
135 static QT3_SUPPORT int x11AppDpiY(int screen = -1);
136 static QT3_SUPPORT void x11SetAppDpiX(int, int);
137 static QT3_SUPPORT void x11SetAppDpiY(int, int);
140 friend class QPainter;
141 friend class QFontEngineMac;
142 friend class QX11PaintEngine;
143 friend Q_GUI_EXPORT int qt_paint_device_metric(const QPaintDevice *device, PaintDeviceMetric metric);
147 QT3_SUPPORT Q_GUI_EXPORT
148 void bitBlt(QPaintDevice *dst, int dx, int dy,
149 const QPaintDevice *src, int sx=0, int sy=0, int sw=-1, int sh=-1,
150 bool ignoreMask=false);
152 QT3_SUPPORT Q_GUI_EXPORT
153 void bitBlt(QPaintDevice *dst, int dx, int dy,
154 const QImage *src, int sx=0, int sy=0, int sw=-1, int sh=-1,
155 int conversion_flags=0);
157 QT3_SUPPORT Q_GUI_EXPORT
158 void bitBlt(QPaintDevice *dst, const QPoint &dp,
159 const QPaintDevice *src, const QRect &sr=QRect(0,0,-1,-1),
160 bool ignoreMask=false);
163 /*****************************************************************************
165 *****************************************************************************/
167 inline int QPaintDevice::devType() const
168 { return QInternal::UnknownDevice; }
170 inline bool QPaintDevice::paintingActive() const
171 { return painters != 0; }
177 #endif // QPAINTDEVICE_H