mainwindow.cpp Example File
widgets/charactermap/mainwindow.cpp
/****************************************************************************
**
** Copyright (C) 2004-2005 Trolltech AS. All rights reserved.
**
** This file is part of the documentation of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file. Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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****************************************************************************/
#include <QtGui>
#include "characterwidget.h"
#include "mainwindow.h"
MainWindow::MainWindow()
{
QWidget *centralWidget = new QWidget;
QLabel *fontLabel = new QLabel(tr("Font:"));
fontCombo = new QComboBox;
QLabel *styleLabel = new QLabel(tr("Style:"));
styleCombo = new QComboBox;
scrollArea = new QScrollArea;
characterWidget = new CharacterWidget;
scrollArea->setWidget(characterWidget);
findFonts();
findStyles();
lineEdit = new QLineEdit;
QPushButton *clipboardButton = new QPushButton(tr("&To clipboard"));
clipboard = QApplication::clipboard();
connect(fontCombo, SIGNAL(activated(const QString &)),
this, SLOT(findStyles()));
connect(fontCombo, SIGNAL(activated(const QString &)),
characterWidget, SLOT(updateFont(const QString &)));
connect(styleCombo, SIGNAL(activated(const QString &)),
characterWidget, SLOT(updateStyle(const QString &)));
connect(characterWidget, SIGNAL(characterSelected(const QString &)),
this, SLOT(insertCharacter(const QString &)));
connect(clipboardButton, SIGNAL(clicked()), this, SLOT(updateClipboard()));
QHBoxLayout *controlsLayout = new QHBoxLayout;
controlsLayout->addWidget(fontLabel);
controlsLayout->addWidget(fontCombo, 1);
controlsLayout->addWidget(styleLabel);
controlsLayout->addWidget(styleCombo, 1);
controlsLayout->addStretch(1);
QHBoxLayout *lineLayout = new QHBoxLayout;
lineLayout->addWidget(lineEdit, 1);
lineLayout->addSpacing(12);
lineLayout->addWidget(clipboardButton);
QVBoxLayout *centralLayout = new QVBoxLayout;
centralLayout->addLayout(controlsLayout);
centralLayout->addWidget(scrollArea, 1);
centralLayout->addSpacing(4);
centralLayout->addLayout(lineLayout);
centralWidget->setLayout(centralLayout);
setCentralWidget(centralWidget);
setWindowTitle(tr("Character Map"));
}
void MainWindow::findFonts()
{
QFontDatabase fontDatabase;
fontCombo->clear();
QString family;
foreach (family, fontDatabase.families())
fontCombo->addItem(family);
}
void MainWindow::findStyles()
{
QFontDatabase fontDatabase;
QString currentItem = styleCombo->currentText();
styleCombo->clear();
QString style;
foreach (style, fontDatabase.styles(fontCombo->currentText()))
styleCombo->addItem(style);
if (styleCombo->findText(currentItem) == -1)
styleCombo->setCurrentIndex(0);
}
void MainWindow::insertCharacter(const QString &character)
{
lineEdit->insert(character);
}
void MainWindow::updateClipboard()
{
clipboard->setText(lineEdit->text(), QClipboard::Clipboard);
clipboard->setText(lineEdit->text(), QClipboard::Selection);
}