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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 documentation 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 #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 } |