1 | /****************************************************************************
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2 | **
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3 | ** Copyright (C) 2010 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 examples 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 | #include "characterwidget.h"
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45 | #include "mainwindow.h"
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46 |
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47 | //! [0]
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48 | MainWindow::MainWindow()
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49 | {
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50 | QWidget *centralWidget = new QWidget;
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51 |
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52 | QLabel *fontLabel = new QLabel(tr("Font:"));
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53 | fontCombo = new QFontComboBox;
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54 | QLabel *sizeLabel = new QLabel(tr("Size:"));
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55 | sizeCombo = new QComboBox;
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56 | QLabel *styleLabel = new QLabel(tr("Style:"));
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57 | styleCombo = new QComboBox;
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58 | QLabel *fontMergingLabel = new QLabel(tr("Automatic Font Merging:"));
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59 | fontMerging = new QCheckBox;
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60 | fontMerging->setChecked(true);
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61 |
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62 | scrollArea = new QScrollArea;
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63 | characterWidget = new CharacterWidget;
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64 | scrollArea->setWidget(characterWidget);
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65 | //! [0]
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66 |
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67 | //! [1]
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68 | findStyles(fontCombo->currentFont());
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69 | //! [1]
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70 | findSizes(fontCombo->currentFont());
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71 |
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72 | //! [2]
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73 | lineEdit = new QLineEdit;
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74 | QPushButton *clipboardButton = new QPushButton(tr("&To clipboard"));
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75 | //! [2]
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76 |
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77 | //! [3]
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78 | clipboard = QApplication::clipboard();
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79 | //! [3]
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80 |
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81 | //! [4]
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82 | connect(fontCombo, SIGNAL(currentFontChanged(QFont)),
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83 | this, SLOT(findStyles(QFont)));
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84 | connect(fontCombo, SIGNAL(currentFontChanged(QFont)),
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85 | this, SLOT(findSizes(QFont)));
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86 | connect(fontCombo, SIGNAL(currentFontChanged(QFont)),
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87 | characterWidget, SLOT(updateFont(QFont)));
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88 | connect(sizeCombo, SIGNAL(currentIndexChanged(QString)),
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89 | characterWidget, SLOT(updateSize(QString)));
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90 | connect(styleCombo, SIGNAL(currentIndexChanged(QString)),
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91 | characterWidget, SLOT(updateStyle(QString)));
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92 | //! [4] //! [5]
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93 | connect(characterWidget, SIGNAL(characterSelected(QString)),
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94 | this, SLOT(insertCharacter(QString)));
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95 | connect(clipboardButton, SIGNAL(clicked()), this, SLOT(updateClipboard()));
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96 | //! [5]
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97 | connect(fontMerging, SIGNAL(toggled(bool)), characterWidget, SLOT(updateFontMerging(bool)));
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98 |
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99 | //! [6]
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100 | QHBoxLayout *controlsLayout = new QHBoxLayout;
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101 | controlsLayout->addWidget(fontLabel);
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102 | controlsLayout->addWidget(fontCombo, 1);
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103 | controlsLayout->addWidget(sizeLabel);
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104 | controlsLayout->addWidget(sizeCombo, 1);
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105 | controlsLayout->addWidget(styleLabel);
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106 | controlsLayout->addWidget(styleCombo, 1);
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107 | controlsLayout->addWidget(fontMergingLabel);
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108 | controlsLayout->addWidget(fontMerging, 1);
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109 | controlsLayout->addStretch(1);
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110 |
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111 | QHBoxLayout *lineLayout = new QHBoxLayout;
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112 | lineLayout->addWidget(lineEdit, 1);
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113 | lineLayout->addSpacing(12);
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114 | lineLayout->addWidget(clipboardButton);
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115 |
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116 | QVBoxLayout *centralLayout = new QVBoxLayout;
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117 | centralLayout->addLayout(controlsLayout);
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118 | centralLayout->addWidget(scrollArea, 1);
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119 | centralLayout->addSpacing(4);
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120 | centralLayout->addLayout(lineLayout);
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121 | centralWidget->setLayout(centralLayout);
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122 |
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123 | setCentralWidget(centralWidget);
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124 | setWindowTitle(tr("Character Map"));
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125 | }
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126 | //! [6]
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127 |
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128 | //! [7]
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129 | void MainWindow::findStyles(const QFont &font)
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130 | {
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131 | QFontDatabase fontDatabase;
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132 | QString currentItem = styleCombo->currentText();
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133 | styleCombo->clear();
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134 | //! [7]
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135 |
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136 | //! [8]
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137 | QString style;
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138 | foreach (style, fontDatabase.styles(font.family()))
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139 | styleCombo->addItem(style);
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140 |
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141 | int styleIndex = styleCombo->findText(currentItem);
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142 |
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143 | if (styleIndex == -1)
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144 | styleCombo->setCurrentIndex(0);
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145 | else
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146 | styleCombo->setCurrentIndex(styleIndex);
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147 | }
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148 | //! [8]
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149 |
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150 | void MainWindow::findSizes(const QFont &font)
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151 | {
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152 | QFontDatabase fontDatabase;
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153 | QString currentSize = sizeCombo->currentText();
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154 | sizeCombo->blockSignals(true);
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155 | sizeCombo->clear();
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156 |
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157 | int size;
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158 | if(fontDatabase.isSmoothlyScalable(font.family(), fontDatabase.styleString(font))) {
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159 | foreach(size, QFontDatabase::standardSizes()) {
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160 | sizeCombo->addItem(QVariant(size).toString());
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161 | sizeCombo->setEditable(true);
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162 | }
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163 |
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164 | } else {
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165 | foreach(size, fontDatabase.smoothSizes(font.family(), fontDatabase.styleString(font))) {
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166 | sizeCombo->addItem(QVariant(size).toString());
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167 | sizeCombo->setEditable(false);
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168 | }
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169 | }
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170 |
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171 | sizeCombo->blockSignals(false);
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172 |
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173 | int sizeIndex = sizeCombo->findText(currentSize);
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174 |
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175 | if(sizeIndex == -1)
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176 | sizeCombo->setCurrentIndex(qMax(0, sizeCombo->count() / 3));
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177 | else
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178 | sizeCombo->setCurrentIndex(sizeIndex);
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179 | }
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180 |
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181 | //! [9]
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182 | void MainWindow::insertCharacter(const QString &character)
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183 | {
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184 | lineEdit->insert(character);
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185 | }
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186 | //! [9]
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187 |
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188 | //! [10]
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189 | void MainWindow::updateClipboard()
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190 | {
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191 | //! [11]
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192 | clipboard->setText(lineEdit->text(), QClipboard::Clipboard);
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193 | //! [11]
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194 | clipboard->setText(lineEdit->text(), QClipboard::Selection);
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195 | }
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196 | //! [10]
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