source: trunk/doc/src/snippets/textdocument-tables/mainwindow.cpp@ 624

Last change on this file since 624 was 561, checked in by Dmitry A. Kuminov, 15 years ago

trunk: Merged in qt 4.6.1 sources.

File size: 6.4 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the documentation of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
22** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
23**
24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you have questions regarding the use of this file, please contact
37** Nokia at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include <QtGui>
43
44#include "mainwindow.h"
45#include "xmlwriter.h"
46
47MainWindow::MainWindow()
48{
49 QMenu *fileMenu = new QMenu(tr("&File"));
50
51 QAction *saveAction = fileMenu->addAction(tr("&Save..."));
52 saveAction->setShortcut(tr("Ctrl+S"));
53 QAction *quitAction = fileMenu->addAction(tr("E&xit"));
54 quitAction->setShortcut(tr("Ctrl+Q"));
55
56 QMenu *showMenu = new QMenu(tr("&Show"));
57
58 QAction *showTableAction = showMenu->addAction(tr("&Table"));
59
60 menuBar()->addMenu(fileMenu);
61 menuBar()->addMenu(showMenu);
62
63 editor = new QTextEdit();
64
65//! [0] //! [1]
66 QTextCursor cursor(editor->textCursor());
67//! [0]
68 cursor.movePosition(QTextCursor::Start);
69//! [1]
70
71 int rows = 11;
72 int columns = 4;
73
74//! [2]
75 QTextTableFormat tableFormat;
76 tableFormat.setBackground(QColor("#e0e0e0"));
77 QVector<QTextLength> constraints;
78 constraints << QTextLength(QTextLength::PercentageLength, 16);
79 constraints << QTextLength(QTextLength::PercentageLength, 28);
80 constraints << QTextLength(QTextLength::PercentageLength, 28);
81 constraints << QTextLength(QTextLength::PercentageLength, 28);
82 tableFormat.setColumnWidthConstraints(constraints);
83//! [3]
84 QTextTable *table = cursor.insertTable(rows, columns, tableFormat);
85//! [2] //! [3]
86
87 int column;
88 int row;
89 QTextTableCell cell;
90 QTextCursor cellCursor;
91
92 QTextCharFormat charFormat;
93 charFormat.setForeground(Qt::black);
94
95//! [4]
96 cell = table->cellAt(0, 0);
97 cellCursor = cell.firstCursorPosition();
98 cellCursor.insertText(tr("Week"), charFormat);
99//! [4]
100
101//! [5]
102 for (column = 1; column < columns; ++column) {
103 cell = table->cellAt(0, column);
104 cellCursor = cell.firstCursorPosition();
105 cellCursor.insertText(tr("Team %1").arg(column), charFormat);
106 }
107
108 for (row = 1; row < rows; ++row) {
109 cell = table->cellAt(row, 0);
110 cellCursor = cell.firstCursorPosition();
111 cellCursor.insertText(tr("%1").arg(row), charFormat);
112
113 for (column = 1; column < columns; ++column) {
114 if ((row-1) % 3 == column-1) {
115//! [5] //! [6]
116 cell = table->cellAt(row, column);
117 QTextCursor cellCursor = cell.firstCursorPosition();
118 cellCursor.insertText(tr("On duty"), charFormat);
119 }
120//! [6] //! [7]
121 }
122//! [7] //! [8]
123 }
124//! [8]
125
126 connect(saveAction, SIGNAL(triggered()), this, SLOT(saveFile()));
127 connect(quitAction, SIGNAL(triggered()), this, SLOT(close()));
128 connect(showTableAction, SIGNAL(triggered()), this, SLOT(showTable()));
129
130 setCentralWidget(editor);
131 setWindowTitle(tr("Text Document Tables"));
132}
133
134void MainWindow::saveFile()
135{
136 QString fileName = QFileDialog::getSaveFileName(this,
137 tr("Save document as:"), "", tr("XML (*.xml)"));
138
139 if (!fileName.isEmpty()) {
140 if (writeXml(fileName))
141 setWindowTitle(fileName);
142 else
143 QMessageBox::warning(this, tr("Warning"),
144 tr("Failed to save the document."), QMessageBox::Cancel,
145 QMessageBox::NoButton);
146 }
147}
148
149void MainWindow::showTable()
150{
151 QTextCursor cursor = editor->textCursor();
152 QTextTable *table = cursor.currentTable();
153
154 if (!table)
155 return;
156
157 QTableWidget *tableWidget = new QTableWidget(table->rows(), table->columns());
158
159//! [9]
160 for (int row = 0; row < table->rows(); ++row) {
161 for (int column = 0; column < table->columns(); ++column) {
162 QTextTableCell tableCell = table->cellAt(row, column);
163//! [9]
164 QTextFrame::iterator it;
165 QString text;
166 for (it = tableCell.begin(); !(it.atEnd()); ++it) {
167 QTextBlock childBlock = it.currentBlock();
168 if (childBlock.isValid())
169 text += childBlock.text();
170 }
171 QTableWidgetItem *newItem = new QTableWidgetItem(text);
172 tableWidget->setItem(row, column, newItem);
173 /*
174//! [10]
175 processTableCell(tableCell);
176//! [10]
177 */
178//! [11]
179 }
180//! [11] //! [12]
181 }
182//! [12]
183
184 tableWidget->setWindowTitle(tr("Table Contents"));
185 tableWidget->show();
186}
187
188bool MainWindow::writeXml(const QString &fileName)
189{
190 XmlWriter documentWriter(editor->document());
191
192 QDomDocument *domDocument = documentWriter.toXml();
193 QFile file(fileName);
194
195 if (file.open(QFile::WriteOnly)) {
196 QTextStream textStream(&file);
197 textStream.setCodec(QTextCodec::codecForName("UTF-8"));
198
199 textStream << domDocument->toString(1).toUtf8();
200 file.close();
201 return true;
202 }
203 else
204 return false;
205}
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