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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 examples 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 #include "window.h" |
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45 |
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46 //! [0] |
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47 Window::Window() |
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48 { |
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49 originalRenderArea = new RenderArea; |
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50 |
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51 shapeComboBox = new QComboBox; |
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52 shapeComboBox->addItem(tr("Clock")); |
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53 shapeComboBox->addItem(tr("House")); |
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54 shapeComboBox->addItem(tr("Text")); |
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55 shapeComboBox->addItem(tr("Truck")); |
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56 |
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57 QGridLayout *layout = new QGridLayout; |
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58 layout->addWidget(originalRenderArea, 0, 0); |
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59 layout->addWidget(shapeComboBox, 1, 0); |
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60 //! [0] |
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61 |
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62 //! [1] |
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63 for (int i = 0; i < NumTransformedAreas; ++i) { |
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64 transformedRenderAreas[i] = new RenderArea; |
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65 |
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66 operationComboBoxes[i] = new QComboBox; |
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67 operationComboBoxes[i]->addItem(tr("No transformation")); |
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68 operationComboBoxes[i]->addItem(tr("Rotate by 60\xB0")); |
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69 operationComboBoxes[i]->addItem(tr("Scale to 75%")); |
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70 operationComboBoxes[i]->addItem(tr("Translate by (50, 50)")); |
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71 |
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72 connect(operationComboBoxes[i], SIGNAL(activated(int)), |
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73 this, SLOT(operationChanged())); |
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74 |
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75 layout->addWidget(transformedRenderAreas[i], 0, i + 1); |
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76 layout->addWidget(operationComboBoxes[i], 1, i + 1); |
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77 } |
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78 //! [1] |
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79 |
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80 //! [2] |
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81 setLayout(layout); |
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82 setupShapes(); |
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83 shapeSelected(0); |
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84 |
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85 setWindowTitle(tr("Transformations")); |
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86 } |
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87 //! [2] |
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88 |
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89 //! [3] |
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90 void Window::setupShapes() |
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91 { |
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92 QPainterPath truck; |
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93 //! [3] |
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94 truck.setFillRule(Qt::WindingFill); |
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95 truck.moveTo(0.0, 87.0); |
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96 truck.lineTo(0.0, 60.0); |
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97 truck.lineTo(10.0, 60.0); |
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98 truck.lineTo(35.0, 35.0); |
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99 truck.lineTo(100.0, 35.0); |
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100 truck.lineTo(100.0, 87.0); |
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101 truck.lineTo(0.0, 87.0); |
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102 truck.moveTo(17.0, 60.0); |
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103 truck.lineTo(55.0, 60.0); |
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104 truck.lineTo(55.0, 40.0); |
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105 truck.lineTo(37.0, 40.0); |
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106 truck.lineTo(17.0, 60.0); |
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107 truck.addEllipse(17.0, 75.0, 25.0, 25.0); |
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108 truck.addEllipse(63.0, 75.0, 25.0, 25.0); |
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109 |
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110 //! [4] |
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111 QPainterPath clock; |
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112 //! [4] |
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113 clock.addEllipse(-50.0, -50.0, 100.0, 100.0); |
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114 clock.addEllipse(-48.0, -48.0, 96.0, 96.0); |
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115 clock.moveTo(0.0, 0.0); |
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116 clock.lineTo(-2.0, -2.0); |
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117 clock.lineTo(0.0, -42.0); |
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118 clock.lineTo(2.0, -2.0); |
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119 clock.lineTo(0.0, 0.0); |
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120 clock.moveTo(0.0, 0.0); |
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121 clock.lineTo(2.732, -0.732); |
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122 clock.lineTo(24.495, 14.142); |
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123 clock.lineTo(0.732, 2.732); |
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124 clock.lineTo(0.0, 0.0); |
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125 |
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126 //! [5] |
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127 QPainterPath house; |
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128 //! [5] |
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129 house.moveTo(-45.0, -20.0); |
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130 house.lineTo(0.0, -45.0); |
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131 house.lineTo(45.0, -20.0); |
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132 house.lineTo(45.0, 45.0); |
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133 house.lineTo(-45.0, 45.0); |
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134 house.lineTo(-45.0, -20.0); |
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135 house.addRect(15.0, 5.0, 20.0, 35.0); |
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136 house.addRect(-35.0, -15.0, 25.0, 25.0); |
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137 |
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138 //! [6] |
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139 QPainterPath text; |
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140 //! [6] |
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141 QFont font; |
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142 font.setPixelSize(50); |
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143 QRect fontBoundingRect = QFontMetrics(font).boundingRect(tr("Qt")); |
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144 text.addText(-QPointF(fontBoundingRect.center()), font, tr("Qt")); |
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145 |
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146 //! [7] |
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147 shapes.append(clock); |
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148 shapes.append(house); |
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149 shapes.append(text); |
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150 shapes.append(truck); |
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151 |
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152 connect(shapeComboBox, SIGNAL(activated(int)), |
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153 this, SLOT(shapeSelected(int))); |
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154 } |
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155 //! [7] |
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156 |
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157 //! [8] |
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158 void Window::operationChanged() |
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159 { |
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160 static const Operation operationTable[] = { |
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161 NoTransformation, Rotate, Scale, Translate |
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162 }; |
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163 |
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164 QList<Operation> operations; |
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165 for (int i = 0; i < NumTransformedAreas; ++i) { |
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166 int index = operationComboBoxes[i]->currentIndex(); |
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167 operations.append(operationTable[index]); |
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168 transformedRenderAreas[i]->setOperations(operations); |
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169 } |
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170 } |
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171 //! [8] |
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172 |
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173 //! [9] |
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174 void Window::shapeSelected(int index) |
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175 { |
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176 QPainterPath shape = shapes[index]; |
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177 originalRenderArea->setShape(shape); |
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178 for (int i = 0; i < NumTransformedAreas; ++i) |
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179 transformedRenderAreas[i]->setShape(shape); |
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180 } |
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181 //! [9] |