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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the QtGui module of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #ifndef QPAINTDEVICE_H |
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43 #define QPAINTDEVICE_H |
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44 |
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45 #include <QtGui/qwindowdefs.h> |
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46 #include <QtCore/qrect.h> |
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47 |
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48 QT_BEGIN_HEADER |
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49 |
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50 QT_BEGIN_NAMESPACE |
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51 |
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52 QT_MODULE(Gui) |
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53 |
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54 #if defined(Q_WS_QWS) |
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55 class QWSDisplay; |
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56 #endif |
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57 |
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58 class QPaintEngine; |
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59 |
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60 class Q_GUI_EXPORT QPaintDevice // device for QPainter |
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61 { |
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62 public: |
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63 enum PaintDeviceMetric { |
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64 PdmWidth = 1, |
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65 PdmHeight, |
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66 PdmWidthMM, |
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67 PdmHeightMM, |
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68 PdmNumColors, |
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69 PdmDepth, |
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70 PdmDpiX, |
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71 PdmDpiY, |
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72 PdmPhysicalDpiX, |
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73 PdmPhysicalDpiY |
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74 }; |
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75 |
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76 virtual ~QPaintDevice(); |
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77 |
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78 virtual int devType() const; |
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79 bool paintingActive() const; |
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80 virtual QPaintEngine *paintEngine() const = 0; |
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81 |
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82 #if defined(Q_WS_QWS) |
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83 static QWSDisplay *qwsDisplay(); |
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84 #endif |
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85 |
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86 #ifdef Q_WS_WIN |
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87 virtual HDC getDC() const; |
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88 virtual void releaseDC(HDC hdc) const; |
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89 #endif |
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90 |
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91 int width() const { return metric(PdmWidth); } |
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92 int height() const { return metric(PdmHeight); } |
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93 int widthMM() const { return metric(PdmWidthMM); } |
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94 int heightMM() const { return metric(PdmHeightMM); } |
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95 int logicalDpiX() const { return metric(PdmDpiX); } |
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96 int logicalDpiY() const { return metric(PdmDpiY); } |
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97 int physicalDpiX() const { return metric(PdmPhysicalDpiX); } |
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98 int physicalDpiY() const { return metric(PdmPhysicalDpiY); } |
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99 int numColors() const { return metric(PdmNumColors); } |
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100 int depth() const { return metric(PdmDepth); } |
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101 |
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102 protected: |
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103 QPaintDevice(); |
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104 virtual int metric(PaintDeviceMetric metric) const; |
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105 |
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106 ushort painters; // refcount |
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107 |
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108 private: |
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109 Q_DISABLE_COPY(QPaintDevice) |
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110 |
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111 #if defined(Q_WS_X11) && defined(QT3_SUPPORT) |
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112 public: |
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113 QT3_SUPPORT Display *x11Display() const; |
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114 QT3_SUPPORT int x11Screen() const; |
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115 QT3_SUPPORT int x11Depth() const; |
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116 QT3_SUPPORT int x11Cells() const; |
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117 QT3_SUPPORT Qt::HANDLE x11Colormap() const; |
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118 QT3_SUPPORT bool x11DefaultColormap() const; |
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119 QT3_SUPPORT void *x11Visual() const; |
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120 QT3_SUPPORT bool x11DefaultVisual() const; |
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121 |
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122 static QT3_SUPPORT Display *x11AppDisplay(); |
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123 static QT3_SUPPORT int x11AppScreen(); |
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124 static QT3_SUPPORT int x11AppDepth(int screen = -1); |
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125 static QT3_SUPPORT int x11AppCells(int screen = -1); |
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126 static QT3_SUPPORT Qt::HANDLE x11AppRootWindow(int screen = -1); |
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127 static QT3_SUPPORT Qt::HANDLE x11AppColormap(int screen = -1); |
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128 static QT3_SUPPORT void *x11AppVisual(int screen = -1); |
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129 static QT3_SUPPORT bool x11AppDefaultColormap(int screen =-1); |
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130 static QT3_SUPPORT bool x11AppDefaultVisual(int screen =-1); |
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131 static QT3_SUPPORT int x11AppDpiX(int screen = -1); |
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132 static QT3_SUPPORT int x11AppDpiY(int screen = -1); |
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133 static QT3_SUPPORT void x11SetAppDpiX(int, int); |
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134 static QT3_SUPPORT void x11SetAppDpiY(int, int); |
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135 #endif |
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136 |
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137 friend class QPainter; |
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138 friend class QFontEngineMac; |
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139 friend class QX11PaintEngine; |
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140 friend Q_GUI_EXPORT int qt_paint_device_metric(const QPaintDevice *device, PaintDeviceMetric metric); |
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141 }; |
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142 |
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143 #ifdef QT3_SUPPORT |
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144 QT3_SUPPORT Q_GUI_EXPORT |
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145 void bitBlt(QPaintDevice *dst, int dx, int dy, |
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146 const QPaintDevice *src, int sx=0, int sy=0, int sw=-1, int sh=-1, |
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147 bool ignoreMask=false); |
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148 |
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149 QT3_SUPPORT Q_GUI_EXPORT |
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150 void bitBlt(QPaintDevice *dst, int dx, int dy, |
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151 const QImage *src, int sx=0, int sy=0, int sw=-1, int sh=-1, |
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152 int conversion_flags=0); |
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153 |
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154 QT3_SUPPORT Q_GUI_EXPORT |
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155 void bitBlt(QPaintDevice *dst, const QPoint &dp, |
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156 const QPaintDevice *src, const QRect &sr=QRect(0,0,-1,-1), |
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157 bool ignoreMask=false); |
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158 #endif |
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159 |
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160 /***************************************************************************** |
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161 Inline functions |
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162 *****************************************************************************/ |
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163 |
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164 inline int QPaintDevice::devType() const |
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165 { return QInternal::UnknownDevice; } |
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166 |
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167 inline bool QPaintDevice::paintingActive() const |
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168 { return painters != 0; } |
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169 |
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170 QT_END_NAMESPACE |
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171 |
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172 QT_END_HEADER |
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173 |
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174 #endif // QPAINTDEVICE_H |