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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 ** Contact: Qt Software Information (qt-info@nokia.com)
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5 **
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6 ** This file is part of the demonstration applications of the Qt Toolkit.
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7 **
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8 ** $QT_BEGIN_LICENSE:LGPL$
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9 ** Commercial Usage
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10 ** Licensees holding valid Qt Commercial licenses may use this file in
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11 ** accordance with the Qt Commercial License Agreement provided with the
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12 ** Software or, alternatively, in accordance with the terms contained in
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13 ** a written agreement between you and Nokia.
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14 **
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15 ** GNU Lesser General Public License Usage
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16 ** Alternatively, this file may be used under the terms of the GNU Lesser
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17 ** General Public License version 2.1 as published by the Free Software
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18 ** Foundation and appearing in the file LICENSE.LGPL included in the
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19 ** packaging of this file. Please review the following information to
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20 ** ensure the GNU Lesser General Public License version 2.1 requirements
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21 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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22 **
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23 ** In addition, as a special exception, Nokia gives you certain
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24 ** additional rights. These rights are described in the Nokia Qt LGPL
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25 ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
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26 ** 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 are unsure which license is appropriate for your use, please
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37 ** contact the sales department at qt-sales@nokia.com.
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38 ** $QT_END_LICENSE$
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39 **
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40 ****************************************************************************/
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41 module pathdeform;
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42
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43
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44 import arthurwidgets,
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45 qt.gui.QPainterPath,
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46 qt.gui.QApplication,
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47 qt.gui.QMouseEvent,
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48 qt.core.QDateTime,
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49 qt.core.QTimerEvent,
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50 qt.core.QBasicTimer,
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51 qt.gui.QLayout,
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52 qt.gui.QLineEdit,
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53 qt.gui.QPainter,
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54 qt.gui.QSlider,
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55 qt.gui.QLabel,
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56 qt.gui.QDesktopWidget,
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57 qt.gui.QGroupBox,
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58 qt.gui.QPushButton,
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59 qt.gui.QVBoxLayout,
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60 qt.gui.QGridLayout,
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61 qt.gui.QHBoxLayout,
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62 qt.gui.QRadialGradient,
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63 qt.opengl.QGLFormat,
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64 tango.math.Math;
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65
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66
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67 class PathDeformControls : QWidget
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68 {
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69 private PathDeformRenderer m_renderer;
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70
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71 mixin Signal!("okPressed");
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72 mixin Signal!("quitPressed");
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73
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74 this(QWidget parent, PathDeformRenderer renderer, bool smallScreen)
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75 {
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76 super(parent);
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77 m_renderer = renderer;
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78
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79 if (smallScreen)
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80 layoutForSmallScreen();
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81 else
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82 layoutForDesktop();
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83 }
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84
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85 void layoutForDesktop()
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86 {
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87 QGroupBox mainGroup = new QGroupBox(this);
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88 mainGroup.setTitle(tr("Controls"));
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89
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90 QGroupBox radiusGroup = new QGroupBox(mainGroup);
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91 radiusGroup.setTitle(tr("Lens Radius"));
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92 QSlider radiusSlider = new QSlider(Qt.Horizontal, radiusGroup);
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93 radiusSlider.setRange(15, 150);
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94 radiusSlider.setSizePolicy(QSizePolicy.Preferred, QSizePolicy.Fixed);
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95
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96 QGroupBox deformGroup = new QGroupBox(mainGroup);
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97 deformGroup.setTitle(tr("Deformation"));
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98 QSlider deformSlider = new QSlider(Qt.Horizontal, deformGroup);
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99 deformSlider.setRange(-100, 100);
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100 deformSlider.setSizePolicy(QSizePolicy.Preferred, QSizePolicy.Fixed);
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101
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102 QGroupBox fontSizeGroup = new QGroupBox(mainGroup);
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103 fontSizeGroup.setTitle(tr("Font Size"));
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104 QSlider fontSizeSlider = new QSlider(Qt.Horizontal, fontSizeGroup);
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105 fontSizeSlider.setRange(16, 200);
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106 fontSizeSlider.setSizePolicy(QSizePolicy.Preferred, QSizePolicy.Fixed);
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107
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108 QGroupBox textGroup = new QGroupBox(mainGroup);
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109 textGroup.setTitle(tr("Text"));
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110 QLineEdit textInput = new QLineEdit(textGroup);
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111
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112 QPushButton animateButton = new QPushButton(mainGroup);
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113 animateButton.setText(tr("Animated"));
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114 animateButton.setCheckable(true);
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115
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116 QPushButton showSourceButton = new QPushButton(mainGroup);
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117 showSourceButton.setText(tr("Show Source"));
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118
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119 version (QT_OPENGL_SUPPORT)
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120 {
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121 QPushButton enableOpenGLButton = new QPushButton(mainGroup);
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122 enableOpenGLButton.setText(tr("Use OpenGL"));
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123 enableOpenGLButton.setCheckable(true);
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124 enableOpenGLButton.setChecked(m_renderer.usesOpenGL());
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125 if (!QGLFormat.hasOpenGL())
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126 enableOpenGLButton.hide();
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127 }
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128
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129 QPushButton whatsThisButton = new QPushButton(mainGroup);
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130 whatsThisButton.setText(tr("What's This?"));
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131 whatsThisButton.setCheckable(true);
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132
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133 mainGroup.setFixedWidth(180);
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134
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135 QVBoxLayout mainGroupLayout = new QVBoxLayout(mainGroup);
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136 mainGroupLayout.addWidget(radiusGroup);
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137 mainGroupLayout.addWidget(deformGroup);
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138 mainGroupLayout.addWidget(fontSizeGroup);
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139 mainGroupLayout.addWidget(textGroup);
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140 mainGroupLayout.addWidget(animateButton);
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141 mainGroupLayout.addStretch(1);
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142 version (QT_OPENGL_SUPPORT)
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143 {
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144 mainGroupLayout.addWidget(enableOpenGLButton);
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145 }
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146 mainGroupLayout.addWidget(showSourceButton);
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147 mainGroupLayout.addWidget(whatsThisButton);
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148
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149 QVBoxLayout radiusGroupLayout = new QVBoxLayout(radiusGroup);
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150 radiusGroupLayout.addWidget(radiusSlider);
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151
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152 QVBoxLayout deformGroupLayout = new QVBoxLayout(deformGroup);
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153 deformGroupLayout.addWidget(deformSlider);
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154
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155 QVBoxLayout fontSizeGroupLayout = new QVBoxLayout(fontSizeGroup);
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156 fontSizeGroupLayout.addWidget(fontSizeSlider);
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157
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158 QVBoxLayout textGroupLayout = new QVBoxLayout(textGroup);
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159 textGroupLayout.addWidget(textInput);
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160
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161 QVBoxLayout mainLayout = new QVBoxLayout(this);
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162 mainLayout.addWidget(mainGroup);
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163 mainLayout.setMargin(0);
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164
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165 radiusSlider.valueChanged.connect(&m_renderer.setRadius);
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166 deformSlider.valueChanged.connect(&m_renderer.setIntensity);
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167 fontSizeSlider.valueChanged.connect(&m_renderer.setFontSize);
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168 animateButton.clicked.connect(&m_renderer.setAnimated);
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169 version (QT_OPENGL_SUPPORT)
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170 {
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171 enableOpenGLButton.clicked.connect(&m_renderer.enableOpenGL);
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172 }
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173
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174 textInput.textChanged.connect(&m_renderer.setText);
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175 m_renderer.descriptionEnabledChanged.connect(&whatsThisButton.setChecked);
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176 whatsThisButton.clicked.connect(&m_renderer.setDescriptionEnabled);
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177 showSourceButton.clicked.connect(&m_renderer.showSource);
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178
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179 animateButton.animateClick();
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180 deformSlider.setValue(80);
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181 fontSizeSlider.setValue(120);
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182 radiusSlider.setValue(100);
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183 textInput.setText(tr("Qt"));
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184 }
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185
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186 void layoutForSmallScreen()
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187 {
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188 QGroupBox mainGroup = new QGroupBox(this);
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189 mainGroup.setTitle(tr("Controls"));
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190
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191 QLabel radiusLabel = new QLabel(mainGroup);
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192 radiusLabel.setText(tr("Lens Radius:"));
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193 QSlider radiusSlider = new QSlider(Qt.Horizontal, mainGroup);
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194 radiusSlider.setRange(15, 150);
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195 radiusSlider.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed);
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196
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197 QLabel deformLabel = new QLabel(mainGroup);
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198 deformLabel.setText(tr("Deformation:"));
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199 QSlider deformSlider = new QSlider(Qt.Horizontal, mainGroup);
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200 deformSlider.setRange(-100, 100);
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201 deformSlider.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed);
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202
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203 QLabel fontSizeLabel = new QLabel(mainGroup);
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204 fontSizeLabel.setText(tr("Font Size:"));
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205 QSlider fontSizeSlider = new QSlider(Qt.Horizontal, mainGroup);
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206 fontSizeSlider.setRange(16, 200);
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207 fontSizeSlider.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed);
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208
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209 QPushButton animateButton = new QPushButton(tr("Animated"), mainGroup);
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210 animateButton.setCheckable(true);
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211
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212 version (QT_OPENGL_SUPPORT)
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213 {
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214 QPushButton enableOpenGLButton = new QPushButton(mainGroup);
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215 enableOpenGLButton.setText(tr("Use OpenGL"));
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216 enableOpenGLButton.setCheckable(true);
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217 enableOpenGLButton.setChecked(m_renderer.usesOpenGL());
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218 if (!QGLFormat.hasOpenGL())
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219 enableOpenGLButton.hide();
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220 }
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221
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222 QPushButton quitButton = new QPushButton(tr("Quit"), mainGroup);
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223 QPushButton okButton = new QPushButton(tr("OK"), mainGroup);
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224
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225
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226 QGridLayout mainGroupLayout = new QGridLayout(mainGroup);
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227 mainGroupLayout.setMargin(0);
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228 mainGroupLayout.addWidget(radiusLabel, 0, 0, Qt.AlignRight);
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229 mainGroupLayout.addWidget(radiusSlider, 0, 1);
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230 mainGroupLayout.addWidget(deformLabel, 1, 0, Qt.AlignRight);
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231 mainGroupLayout.addWidget(deformSlider, 1, 1);
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232 mainGroupLayout.addWidget(fontSizeLabel, 2, 0, Qt.AlignRight);
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233 mainGroupLayout.addWidget(fontSizeSlider, 2, 1);
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234 mainGroupLayout.addWidget(animateButton, 3,0, 1,2);
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235 version (QT_OPENGL_SUPPORT)
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236 {
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237 mainGroupLayout.addWidget(enableOpenGLButton, 4,0, 1,2);
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238 }
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239
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240 QVBoxLayout mainLayout = new QVBoxLayout(this);
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241 mainLayout.addWidget(mainGroup);
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242 mainLayout.addStretch(1);
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243 mainLayout.addWidget(okButton);
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244 mainLayout.addWidget(quitButton);
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245
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246 quitButton.clicked.connect(&emitQuitSignal);
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247 okButton.clicked.connect(&emitOkSignal);
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248 radiusSlider.valueChanged.connect(&m_renderer.setRadius);
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249 deformSlider.valueChanged.connect(&m_renderer.setIntensity);
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250 fontSizeSlider.valueChanged.connect(&m_renderer.setFontSize);
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251 animateButton.clicked.connect(&m_renderer.setAnimated);
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252 version (QT_OPENGL_SUPPORT)
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253 {
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254 enableOpenGLButton.clicked.connect(&m_renderer.enableOpenGL);
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255 }
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256
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257 animateButton.animateClick();
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258 deformSlider.setValue(80);
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259 fontSizeSlider.setValue(120);
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260
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261 QRect screen_size = QApplication.desktop().screenGeometry();
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262 radiusSlider.setValue(qMin(screen_size.width(), screen_size.height())/5);
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263 m_renderer.setText(tr("Qt"));
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264 }
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265
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266 void emitQuitSignal()
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267 {
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268 quitPressed.emit;
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269 }
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270
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271 void emitOkSignal()
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272 {
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273 okPressed.emit;
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274 }
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275 }
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276
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277
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278 class PathDeformWidget : QWidget
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279 {
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280 private:
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281
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282 PathDeformRenderer m_renderer;
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283 PathDeformControls m_controls;
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284
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285 public:
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286
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287 this(QWidget parent, bool smallScreen)
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288 {
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289 super(parent);
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290
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291 setWindowTitle(tr("Vector Deformation"));
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292
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293 m_renderer = new PathDeformRenderer(this, smallScreen);
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294 m_renderer.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding);
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295
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296 // Layouts
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297 QHBoxLayout mainLayout = new QHBoxLayout(this);
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298 mainLayout.addWidget(m_renderer);
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299
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300 m_controls = new PathDeformControls(null, m_renderer, smallScreen);
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301 m_controls.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Minimum);
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302
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303 if (!smallScreen)
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304 mainLayout.addWidget(m_controls);
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305
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306 m_renderer.loadSourceFile(":res/deform/pathdeform.d");
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307 m_renderer.loadDescription(":res/deform/pathdeform.html");
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308 m_renderer.setDescriptionEnabled(false);
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309
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310 m_renderer.clicked.connect(&showControls);
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311 m_controls.okPressed.connect(&hideControls);
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312
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313 m_controls.quitPressed.connect(&QApplication.quit);
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314 }
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315
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316 void showControls()
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317 {
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318 m_controls.showFullScreen;
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319 }
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320
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321 void hideControls()
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322 {
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323 m_controls.hide;
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324 }
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325
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326 void setWidgetStyle(QStyle style) // TODO: QWidget.setStyle is not virtual
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327 {
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328 super.setStyle(style);
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329 if (m_controls)
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330 {
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331 m_controls.setStyle(style);
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332
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333 QWidget[] widgets = m_controls.findChildren!(QWidget);
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334 foreach (w; widgets)
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335 w.setStyle(style);
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336 }
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337 }
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338 }
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339
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340 private QRect circle_bounds(QPointF center, qreal radius, qreal compensation)
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341 {
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342 return QRect(qRound(center.x() - radius - compensation),
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343 qRound(center.y() - radius - compensation),
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344 qRound((radius + compensation) * 2),
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345 qRound((radius + compensation) * 2));
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346 }
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347
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348 enum
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349 {
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350 LENS_EXTENT = 10
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351 }
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352
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353 class PathDeformRenderer : ArthurFrame
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354 {
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355 private:
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356
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357 QBasicTimer m_repaintTimer;
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358 // QBasicTimer m_fpsTimer;
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359 // int m_fpsCounter;
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360 QTime m_repaintTracker;
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361
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362 QPainterPath[] m_paths;
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363 QPointF[] m_advances;
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364 QRectF m_pathBounds;
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365 string m_text;
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366
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367 QPixmap m_lens_pixmap;
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368 QImage m_lens_image;
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369
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370 int m_fontSize;
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371 bool m_animated;
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372
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373 qreal m_intensity;
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374 qreal m_radius;
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375 QPointF m_pos;
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376 QPointF m_offset;
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377 QPointF m_direction;
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378 QPointF m_mousePress;
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379 bool m_mouseDrag;
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380 bool m_smallScreen;
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381
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382 public:
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383
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384 mixin Signal!("clicked");
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385
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386 this(QWidget widget, bool smallScreen)
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387 {
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388 super(widget);
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389 m_radius = 100;
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390 m_pos = QPointF(m_radius, m_radius);
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391 m_direction = QPointF(1, 1);
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392 m_fontSize = 24;
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393 m_animated = true;
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394 m_repaintTimer.start(25, this);
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395 m_repaintTracker.start();
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396 m_intensity = 100;
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397 m_smallScreen = smallScreen;
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398
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399 // m_fpsTimer.start(1000, this);
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400 // m_fpsCounter = 0;
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401
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402 generateLensPixmap();
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403 }
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404
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405 void setFontSize(int fontSize)
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406 {
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407 m_fontSize = fontSize;
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408 setText(m_text);
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409 }
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410
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411 override QSize sizeHint() { return QSize(600, 500); }
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412
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413 bool animated() { return m_animated; }
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414 int radius() { return cast(int) m_radius; }
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415 int fontSize() { return m_fontSize; }
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416 int intensity() { return cast(int) m_intensity; }
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417 string text() { return m_text; }
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418
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419 void setText(string text)
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420 {
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421 m_text = text;
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422
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423 auto f = new QFont("times new roman,utopia");
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424 f.setStyleStrategy(QFont.ForceOutline);
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425 f.setPointSize(m_fontSize);
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426 f.setStyleHint(QFont.Times);
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427
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428 m_paths = null;
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429 m_pathBounds = QRectF();
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430
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431 QPointF advance;
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432
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433 bool do_quick = true;
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434 for (int i = 0; i < text.length; ++i) {
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435 if (text[i].unicode() >= 0x4ff && text.at(i).unicode() <= 0x1e00) {
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436 do_quick = false;
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437 break;
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438 }
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439 }
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440
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441 if (do_quick) {
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442 for (int i = 0; i < text.length; ++i) {
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443 QPainterPath path = new QPainterPath;
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444 path.addText(advance, f, text.mid(i, 1));
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445 m_pathBounds |= path.boundingRect();
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446 m_paths ~= path;
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447 advance += QPointF(fm.width(text.mid(i, 1)), 0);
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448 }
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449 } else {
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450 QPainterPath path = new QPainterPath;
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451 path.addText(advance, f, text);
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452 m_pathBounds |= path.boundingRect();
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453 m_paths ~= path;
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454 }
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455
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456 for (int i = 0; i < m_paths.length; ++i)
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457 m_paths[i] = m_paths[i] * (new QMatrix(1, 0, 0, 1, -m_pathBounds.x(), -m_pathBounds.y()));
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458
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459 update();
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|
460 }
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461
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462 void generateLensPixmap()
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463 {
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464 qreal rad = m_radius + LENS_EXTENT;
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465
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466 QRect bounds = circle_bounds(QPointF(), rad, 0);
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467
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468 QPainter painter = new QPainter;
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469
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470 if (preferImage()) {
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|
471 m_lens_image = new QImage(bounds.size(), QImage.Format_ARGB32_Premultiplied);
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|
472 m_lens_image.fill(0);
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|
473 painter.begin(m_lens_image);
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|
474 } else {
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|
475 m_lens_pixmap = new QPixmap(bounds.size());
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476 m_lens_pixmap.fill(new QColor(Qt.transparent));
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477 painter.begin(m_lens_pixmap);
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478 }
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479
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480 auto gr = new QRadialGradient(rad, rad, rad, 3 * rad / 5, 3 * rad / 5);
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|
481 gr.setColorAt(0.0, new QColor(255, 255, 255, 191));
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|
482 gr.setColorAt(0.2, new QColor(255, 255, 127, 191));
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|
483 gr.setColorAt(0.9, new QColor(150, 150, 200, 63));
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|
|
484 gr.setColorAt(0.95, new QColor(0, 0, 0, 127));
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|
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485 gr.setColorAt(1, new QColor(0, 0, 0, 0));
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|
|
486 painter.setRenderHint(QPainter.Antialiasing);
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|
|
487 painter.setBrush(gr);
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|
488 painter.setPen(Qt.NoPen);
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|
|
489 painter.drawEllipse(0, 0, bounds.width(), bounds.height());
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|
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490 }
|
|
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491
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492 void setAnimated(bool animated)
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|
|
493 {
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|
494 m_animated = animated;
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495
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|
496 if (m_animated) {
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|
497 // m_fpsTimer.start(1000, this);
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|
498 // m_fpsCounter = 0;
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|
|
499 m_repaintTimer.start(25, this);
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|
|
500 m_repaintTracker.start();
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501 } else {
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|
502 // m_fpsTimer.stop();
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|
503 m_repaintTimer.stop();
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|
504 }
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505 }
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506
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|
507 override void timerEvent(QTimerEvent e)
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|
508 {
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|
509 if (e.timerId == m_repaintTimer.timerId)
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|
510 {
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|
511 if ((QLineF(QPointF(0,0), m_direction)).length() > 1)
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|
512 m_direction *= 0.995;
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|
|
513 qreal time = m_repaintTracker.restart();
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514
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|
515 QRect rectBefore = circle_bounds(m_pos, m_radius, m_fontSize);
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|
|
516
|
|
|
517 qreal dx = m_direction.x();
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|
518 qreal dy = m_direction.y();
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|
519 if (time > 0) {
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|
520 dx = dx * time * .1;
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|
|
521 dy = dy * time * .1;
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|
|
522 }
|
|
|
523
|
|
|
524 m_pos += QPointF(dx, dy);
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|
525
|
|
|
526 if (m_pos.x() - m_radius < 0) {
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|
527 m_direction.x = -m_direction.x;
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|
|
528 m_pos.x = m_radius;
|
|
|
529 } else if (m_pos.x + m_radius > width) {
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|
|
530 m_direction.x = -m_direction.x;
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|
|
531 m_pos.x = width - m_radius;
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|
|
532 }
|
|
|
533
|
|
|
534 if (m_pos.y - m_radius < 0) {
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|
|
535 m_direction.y = -m_direction.y;
|
|
|
536 m_pos.y = m_radius;
|
|
|
537 } else if (m_pos.y + m_radius > height) {
|
|
|
538 m_direction.y = -m_direction.y;
|
|
|
539 m_pos.y = height - m_radius;
|
|
|
540 }
|
|
|
541
|
|
|
542 void noGLUpdate()
|
|
|
543 {
|
|
|
544 QRect rectAfter = circle_bounds(m_pos, m_radius, m_fontSize);
|
|
|
545 update(rectAfter.united(rectBefore));
|
|
|
546 QApplication.syncX();
|
|
|
547 }
|
|
|
548
|
|
|
549 version (QT_OPENGL_SUPPORT)
|
|
|
550 {
|
|
|
551 if (usesOpenGL()) {
|
|
|
552 update;
|
|
|
553 }
|
|
|
554 else
|
|
|
555 noGLUpdate;
|
|
|
556 }
|
|
|
557 else
|
|
|
558 noGLUpdate;
|
|
|
559 }
|
|
|
560 // else if (e.timerId() == m_fpsTimer.timerId()) {
|
|
|
561 // printf("fps: %d\n", m_fpsCounter);
|
|
|
562 // emit frameRate(m_fpsCounter);
|
|
|
563 // m_fpsCounter = 0;
|
|
|
564
|
|
|
565 // }
|
|
|
566 }
|
|
|
567
|
|
|
568 override void mousePressEvent(QMouseEvent e)
|
|
|
569 {
|
|
|
570 setDescriptionEnabled(false);
|
|
|
571
|
|
|
572 m_repaintTimer.stop();
|
|
|
573 m_offset = QPointF();
|
|
|
574 if ((QLineF(m_pos, QPointF(e.pos))).length <= m_radius)
|
|
|
575 m_offset = m_pos - QPointF(e.pos);
|
|
|
576
|
|
|
577 m_mousePress = QPointF(e.pos);
|
|
|
578
|
|
|
579 // If we're not running in small screen mode, always assume we're dragging
|
|
|
580 m_mouseDrag = !m_smallScreen;
|
|
|
581
|
|
|
582 mouseMoveEvent(e);
|
|
|
583 }
|
|
|
584
|
|
|
585 override void mouseReleaseEvent(QMouseEvent e)
|
|
|
586 {
|
|
|
587 if (e.buttons() == Qt.NoButton && m_animated) {
|
|
|
588 m_repaintTimer.start(10, this);
|
|
|
589 m_repaintTracker.start();
|
|
|
590 }
|
|
|
591
|
|
|
592 if (!m_mouseDrag && m_smallScreen)
|
|
|
593 clicked.emit;
|
|
|
594 }
|
|
|
595
|
|
|
596 override void mouseMoveEvent(QMouseEvent e)
|
|
|
597 {
|
|
|
598 auto epos = QPointF(e.pos);
|
|
|
599
|
|
|
600 if (!m_mouseDrag && (QLineF(m_mousePress, QPointF(e.pos))).length() > 25.0)
|
|
|
601 m_mouseDrag = true;
|
|
|
602
|
|
|
603 if (m_mouseDrag)
|
|
|
604 {
|
|
|
605 QRect rectBefore = circle_bounds(m_pos, m_radius, m_fontSize);
|
|
|
606 if (e.type() == QEvent.MouseMove) {
|
|
|
607 QLineF line = QLineF(m_pos, epos + m_offset);
|
|
|
608 line.setLength(line.length() * .1);
|
|
|
609 auto dir = QPointF(line.dx(), line.dy());
|
|
|
610 m_direction = (m_direction + dir) / 2;
|
|
|
611 }
|
|
|
612 m_pos = epos + m_offset;
|
|
|
613
|
|
|
614 void noGLUpdate()
|
|
|
615 {
|
|
|
616 QRect rectAfter = circle_bounds(m_pos, m_radius, m_fontSize);
|
|
|
617 update(rectBefore.united(rectAfter));
|
|
|
618 }
|
|
|
619
|
|
|
620 version (QT_OPENGL_SUPPORT)
|
|
|
621 {
|
|
|
622 if (usesOpenGL()) {
|
|
|
623 update;
|
|
|
624 } else
|
|
|
625 noGLUpdate;
|
|
|
626 }
|
|
|
627 else
|
|
|
628 noGLUpdate;
|
|
|
629 }
|
|
|
630 }
|
|
|
631
|
|
|
632 QPainterPath lensDeform(QPainterPath source, QPointF offset)
|
|
|
633 {
|
|
|
634 auto path = new QPainterPath;
|
|
|
635 path.addPath(source);
|
|
|
636
|
|
|
637 qreal flip = m_intensity / 100.0;
|
|
|
638
|
|
|
639 for (int i=0; i<path.elementCount; ++i)
|
|
|
640 {
|
|
|
641 auto e = path.elementAt(i);
|
|
|
642
|
|
|
643 qreal x = e.x + offset.x();
|
|
|
644 qreal y = e.y + offset.y();
|
|
|
645
|
|
|
646 qreal dx = x - m_pos.x();
|
|
|
647 qreal dy = y - m_pos.y();
|
|
|
648 qreal len = m_radius - sqrt(dx * dx + dy * dy);
|
|
|
649
|
|
|
650 if (len > 0) {
|
|
|
651 path.setElementPositionAt(i,
|
|
|
652 x + flip * dx * len / m_radius,
|
|
|
653 y + flip * dy * len / m_radius);
|
|
|
654 } else {
|
|
|
655 path.setElementPositionAt(i, x, y);
|
|
|
656 }
|
|
|
657 }
|
|
|
658
|
|
|
659 return path;
|
|
|
660 }
|
|
|
661
|
|
|
662 override void paint(QPainter painter)
|
|
|
663 {
|
|
|
664 int pad_x = 5;
|
|
|
665 int pad_y = 5;
|
|
|
666
|
|
|
667 int skip_x = qRound(m_pathBounds.width() + pad_x + m_fontSize/2);
|
|
|
668 int skip_y = qRound(m_pathBounds.height() + pad_y);
|
|
|
669
|
|
|
670 painter.setPen(Qt.NoPen);
|
|
|
671 painter.setBrush(new QColor(Qt.black));
|
|
|
672
|
|
|
673 auto clip = painter.clipPath().boundingRect();
|
|
|
674
|
|
|
675 int overlap = pad_x / 2;
|
|
|
676
|
|
|
677 for (int start_y=0; start_y < height(); start_y += skip_y)
|
|
|
678 {
|
|
|
679 if (start_y > clip.bottom())
|
|
|
680 break;
|
|
|
681
|
|
|
682 int start_x = -overlap;
|
|
|
683 for (; start_x < width(); start_x += skip_x)
|
|
|
684 {
|
|
|
685 if (start_y + skip_y >= clip.top() &&
|
|
|
686 start_x + skip_x >= clip.left() &&
|
|
|
687 start_x <= clip.right())
|
|
|
688 {
|
|
|
689 for (int i=0; i<m_paths.length; ++i) {
|
|
|
690 QPainterPath path = lensDeform(m_paths[i], QPointF(start_x, start_y));
|
|
|
691 painter.drawPath(path);
|
|
|
692 }
|
|
|
693 }
|
|
|
694 }
|
|
|
695 overlap = skip_x - (start_x - width());
|
|
|
696 }
|
|
|
697
|
|
|
698 if (preferImage) {
|
|
|
699 painter.drawImage(m_pos - QPointF(m_radius + LENS_EXTENT, m_radius + LENS_EXTENT), m_lens_image);
|
|
|
700 } else {
|
|
|
701 painter.drawPixmap(m_pos - QPointF(m_radius + LENS_EXTENT, m_radius + LENS_EXTENT), m_lens_pixmap);
|
|
|
702 }
|
|
|
703 }
|
|
|
704
|
|
|
705 void setRadius(int radius)
|
|
|
706 {
|
|
|
707 qreal max = max(m_radius, cast(qreal)radius);
|
|
|
708 m_radius = radius;
|
|
|
709 generateLensPixmap();
|
|
|
710 if (!m_animated || m_radius < max)
|
|
|
711 {
|
|
|
712 auto noGLUpdate = (){ update(circle_bounds(m_pos, max, m_fontSize)); };
|
|
|
713
|
|
|
714 version (QT_OPENGL_SUPPORT)
|
|
|
715 {
|
|
|
716 if (usesOpenGL())
|
|
|
717 update();
|
|
|
718 else
|
|
|
719 noGLUpdate();
|
|
|
720 }
|
|
|
721 else
|
|
|
722 noGLUpdate();
|
|
|
723 }
|
|
|
724 }
|
|
|
725
|
|
|
726 void setIntensity(int intensity)
|
|
|
727 {
|
|
|
728 m_intensity = intensity;
|
|
|
729 if (!m_animated)
|
|
|
730 {
|
|
|
731 auto noGLUpdate = (){ update(circle_bounds(m_pos, m_radius, m_fontSize)); };
|
|
|
732
|
|
|
733 version (QT_OPENGL_SUPPORT)
|
|
|
734 {
|
|
|
735 if (usesOpenGL()) {
|
|
|
736 update();
|
|
|
737 } else
|
|
|
738 noGLUpdate();
|
|
|
739 }
|
|
|
740 else
|
|
|
741 noGLUpdate();
|
|
|
742 }
|
|
|
743 }
|
|
|
744 }
|
