1 | /****************************************************************************
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2 | **
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3 | ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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4 | ** All rights reserved.
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5 | ** Contact: Nokia Corporation ([email protected])
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6 | **
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7 | ** This file is part of the documentation of the Qt Toolkit.
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8 | **
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9 | ** $QT_BEGIN_LICENSE:BSD$
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10 | ** You may use this file under the terms of the BSD license as follows:
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11 | **
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12 | ** "Redistribution and use in source and binary forms, with or without
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13 | ** modification, are permitted provided that the following conditions are
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14 | ** met:
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15 | ** * Redistributions of source code must retain the above copyright
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16 | ** notice, this list of conditions and the following disclaimer.
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17 | ** * Redistributions in binary form must reproduce the above copyright
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18 | ** notice, this list of conditions and the following disclaimer in
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19 | ** the documentation and/or other materials provided with the
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20 | ** distribution.
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21 | ** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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22 | ** the names of its contributors may be used to endorse or promote
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23 | ** products derived from this software without specific prior written
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24 | ** permission.
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25 | **
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26 | ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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27 | ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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28 | ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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29 | ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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30 | ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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31 | ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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32 | ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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33 | ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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34 | ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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35 | ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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36 | ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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37 | ** $QT_END_LICENSE$
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38 | **
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39 | ****************************************************************************/
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40 |
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41 | #include <QtGui>
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42 |
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43 | #include "mainwindow.h"
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44 | #include "xmlwriter.h"
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45 |
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46 | MainWindow::MainWindow()
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47 | {
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48 | QMenu *fileMenu = new QMenu(tr("&File"));
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49 |
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50 | QAction *saveAction = fileMenu->addAction(tr("&Save..."));
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51 | saveAction->setShortcut(tr("Ctrl+S"));
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52 |
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53 | QAction *quitAction = fileMenu->addAction(tr("E&xit"));
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54 | quitAction->setShortcut(tr("Ctrl+Q"));
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55 |
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56 | menuBar()->addMenu(fileMenu);
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57 | editor = new QTextEdit();
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58 |
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59 | QTextCursor cursor(editor->textCursor());
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60 | cursor.movePosition(QTextCursor::Start);
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61 |
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62 | QTextFrame *mainFrame = cursor.currentFrame();
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63 |
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64 | QTextCharFormat plainCharFormat;
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65 | QTextCharFormat boldCharFormat;
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66 | boldCharFormat.setFontWeight(QFont::Bold);
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67 | /* main frame
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68 | //! [0]
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69 | QTextFrame *mainFrame = cursor.currentFrame();
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70 | cursor.insertText(...);
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71 | //! [0]
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72 | */
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73 | cursor.insertText("Text documents are represented by the "
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74 | "QTextDocument class, rather than by QString objects. "
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75 | "Each QTextDocument object contains information about "
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76 | "the document's internal representation, its structure, "
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77 | "and keeps track of modifications to provide undo/redo "
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78 | "facilities. This approach allows features such as the "
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79 | "layout management to be delegated to specialized "
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80 | "classes, but also provides a focus for the framework.",
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81 | plainCharFormat);
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82 |
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83 | //! [1]
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84 | QTextFrameFormat frameFormat;
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85 | frameFormat.setMargin(32);
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86 | frameFormat.setPadding(8);
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87 | frameFormat.setBorder(4);
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88 | //! [1]
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89 | cursor.insertFrame(frameFormat);
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90 |
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91 | /* insert frame
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92 | //! [2]
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93 | cursor.insertFrame(frameFormat);
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94 | cursor.insertText(...);
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95 | //! [2]
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96 | */
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97 | cursor.insertText("Documents are either converted from external sources "
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98 | "or created from scratch using Qt. The creation process "
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99 | "can done by an editor widget, such as QTextEdit, or by "
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100 | "explicit calls to the Scribe API.", boldCharFormat);
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101 |
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102 | cursor = mainFrame->lastCursorPosition();
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103 | /* last cursor
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104 | //! [3]
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105 | cursor = mainFrame->lastCursorPosition();
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106 | cursor.insertText(...);
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107 | //! [3]
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108 | */
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109 | cursor.insertText("There are two complementary ways to visualize the "
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110 | "contents of a document: as a linear buffer that is "
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111 | "used by editors to modify the contents, and as an "
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112 | "object hierarchy containing structural information "
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113 | "that is useful to layout engines. In the hierarchical "
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114 | "model, the objects generally correspond to visual "
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115 | "elements such as frames, tables, and lists. At a lower "
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116 | "level, these elements describe properties such as the "
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117 | "style of text used and its alignment. The linear "
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118 | "representation of the document is used for editing and "
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119 | "manipulation of the document's contents.",
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120 | plainCharFormat);
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121 |
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122 |
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123 | connect(saveAction, SIGNAL(triggered()), this, SLOT(saveFile()));
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124 | connect(quitAction, SIGNAL(triggered()), this, SLOT(close()));
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125 |
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126 | setCentralWidget(editor);
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127 | setWindowTitle(tr("Text Document Frames"));
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128 | }
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129 |
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130 | void MainWindow::saveFile()
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131 | {
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132 | QString fileName = QFileDialog::getSaveFileName(this,
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133 | tr("Save document as:"), "", tr("XML (*.xml)"));
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134 |
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135 | if (!fileName.isEmpty()) {
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136 | if (writeXml(fileName))
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137 | setWindowTitle(fileName);
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138 | else
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139 | QMessageBox::warning(this, tr("Warning"),
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140 | tr("Failed to save the document."), QMessageBox::Cancel,
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141 | QMessageBox::NoButton);
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142 | }
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143 | }
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144 | bool MainWindow::writeXml(const QString &fileName)
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145 | {
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146 | XmlWriter documentWriter(editor->document());
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147 |
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148 | QDomDocument *domDocument = documentWriter.toXml();
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149 | QFile file(fileName);
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150 |
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151 | if (file.open(QFile::WriteOnly)) {
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152 | QTextStream textStream(&file);
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153 | textStream.setCodec(QTextCodec::codecForName("UTF-8"));
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154 |
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155 | textStream << domDocument->toString(1).toUtf8();
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156 | file.close();
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157 | return true;
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158 | }
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159 | else
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160 | return false;
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161 | }
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