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<td align="right" valign="top" width="230"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></td></tr></table><h1 align="center">mainwindow.cpp Example File<br /><small><small>richtext/calendar/mainwindow.cpp</small></small></h1>

<pre>  /****************************************************************************

** This file is part of the documentation of the Qt Toolkit.

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#include <QtGui>

#include "mainwindow.h"

MainWindow::MainWindow()

{

selectedDate = QDate::currentDate();

fontSize = 10;

QWidget *centralWidget = new QWidget;

QLabel *dateLabel = new QLabel(tr("Date:"));

QComboBox *monthCombo = new QComboBox;

for (int month = 1; month <= 12; ++month)

monthCombo->addItem(QDate::longMonthName(month));

QDateTimeEdit *yearEdit = new QDateTimeEdit;

yearEdit->setDisplayFormat("yyyy");

yearEdit->setDateRange(QDate(1753, 1, 1), QDate(8000, 1, 1));

monthCombo->setCurrentIndex(selectedDate.month() - 1);

yearEdit->setDate(selectedDate);

QLabel *fontSizeLabel = new QLabel(tr("Font size:"));

QSpinBox *fontSizeSpinBox = new QSpinBox;

fontSizeSpinBox->setRange(1, 64);

fontSizeSpinBox->setValue(10);

editor = new QTextBrowser;

insertCalendar();

connect(monthCombo, SIGNAL(activated(int)), this, SLOT(setMonth(int)));

connect(yearEdit, SIGNAL(dateChanged(QDate)), this, SLOT(setYear(QDate)));

connect(fontSizeSpinBox, SIGNAL(valueChanged(int)),

this, SLOT(setFontSize(int)));

QHBoxLayout *controlsLayout = new QHBoxLayout;

controlsLayout->addWidget(dateLabel);

controlsLayout->addWidget(monthCombo);

controlsLayout->addWidget(yearEdit);

controlsLayout->addSpacing(24);

controlsLayout->addWidget(fontSizeLabel);

controlsLayout->addWidget(fontSizeSpinBox);

controlsLayout->addStretch(1);

QVBoxLayout *centralLayout = new QVBoxLayout;

centralLayout->addLayout(controlsLayout);

centralLayout->addWidget(editor, 1);

centralWidget->setLayout(centralLayout);

setCentralWidget(centralWidget);

100

}

101

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void MainWindow::insertCalendar()

103

{

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editor->clear();

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QTextCursor cursor = editor->textCursor();

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QDate date(selectedDate.year(), selectedDate.month(), 1);

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QTextTableFormat tableFormat;

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tableFormat.setAlignment(Qt::AlignHCenter);

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tableFormat.setBackground(QColor("#e0e0e0"));

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tableFormat.setCellPadding(2);

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tableFormat.setCellSpacing(4);

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QVector<QTextLength> constraints;

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constraints << QTextLength(QTextLength::PercentageLength, 14)

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