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 ([email protected])
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6 | **
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7 | ** This file is part of the documentation of the Qt Toolkit.
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8 | **
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9 | ** $QT_BEGIN_LICENSE:LGPL$
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10 | ** Commercial Usage
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11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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12 | ** accordance with the Qt Commercial License Agreement provided with the
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13 | ** Software or, alternatively, in accordance with the terms contained in
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14 | ** a written agreement between you and Nokia.
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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 | ** GNU General Public License Usage
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29 | ** Alternatively, this file may be used under the terms of the GNU
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30 | ** General Public License version 3.0 as published by the Free Software
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31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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32 | ** packaging of this file. Please review the following information to
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33 | ** ensure the GNU General Public License version 3.0 requirements will be
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34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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35 | **
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36 | ** If you have questions regarding the use of this file, please contact
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37 | ** Nokia at [email protected].
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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 | #include <QtGui>
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43 |
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44 | void myProcessing(const QString &)
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45 | {
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46 | }
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47 |
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48 | int main()
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49 | {
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50 | QWidget myWidget;
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51 | {
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52 | // RECORD
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53 | //! [0]
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54 | QPicture picture;
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55 | QPainter painter;
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56 | painter.begin(&picture); // paint in picture
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57 | painter.drawEllipse(10,20, 80,70); // draw an ellipse
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58 | painter.end(); // painting done
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59 | picture.save("drawing.pic"); // save picture
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60 | //! [0]
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61 | }
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62 |
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63 | {
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64 | // REPLAY
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65 | //! [1]
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66 | QPicture picture;
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67 | picture.load("drawing.pic"); // load picture
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68 | QPainter painter;
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69 | painter.begin(&myImage); // paint in myImage
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70 | painter.drawPicture(0, 0, picture); // draw the picture at (0,0)
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71 | painter.end(); // painting done
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72 | //! [1]
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73 | }
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74 |
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75 | QPicture myPicture;
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76 | {
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77 | // FORMATS
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78 | //! [2]
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79 | QStringList list = QPicture::inputFormatList();
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80 | foreach (QString string, list)
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81 | myProcessing(string);
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82 | //! [2]
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83 | }
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84 |
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85 | {
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86 | // OUTPUT
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87 | //! [3]
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88 | QStringList list = QPicture::outputFormatList();
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89 | foreach (QString string, list)
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90 | myProcessing(string);
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91 | //! [3]
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92 | }
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93 |
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94 | {
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95 | // PIC READ
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96 | //! [4]
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97 | QPictureIO iio;
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98 | QPixmap pixmap;
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99 | iio.setFileName("vegeburger.pic");
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100 | if (iio.read()) { // OK
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101 | QPicture picture = iio.picture();
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102 | QPainter painter(&pixmap);
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103 | painter.drawPicture(0, 0, picture);
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104 | }
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105 | //! [4]
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106 | }
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107 |
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108 | {
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109 | QPixmap pixmap;
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110 | // PIC WRITE
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111 | //! [5]
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112 | QPictureIO iio;
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113 | QPicture picture;
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114 | QPainter painter(&picture);
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115 | painter.drawPixmap(0, 0, pixmap);
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116 | iio.setPicture(picture);
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117 | iio.setFileName("vegeburger.pic");
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118 | iio.setFormat("PIC");
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119 | if (iio.write())
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120 | return true; // returned true if written successfully
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121 | //! [5]
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122 | }
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123 |
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124 | }
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125 |
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126 | // SVG READ
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127 | //! [6]
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128 | void readSVG(QPictureIO *picture)
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129 | {
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130 | // read the picture using the picture->ioDevice()
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131 | }
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132 | //! [6]
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133 |
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134 | // SVG WRITE
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135 | //! [7]
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136 | void writeSVG(QPictureIO *picture)
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137 | {
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138 | // write the picture using the picture->ioDevice()
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139 | }
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140 | //! [7]
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141 |
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142 | // USE SVG
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143 | void foo() {
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144 |
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145 | //! [8]
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146 | // add the SVG picture handler
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147 | // ...
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148 | //! [8]
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149 | QPictureIO::defineIOHandler("SVG", 0, 0, readSVG, writeSVG);
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150 | // ...
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151 |
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152 | }
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