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mainwindow.cpp Example File
widgets/charactermap/mainwindow.cpp

    #include <QtGui>

    #include "characterwidget.h"
    #include "mainwindow.h"

    MainWindow::MainWindow()
    {
        QWidget *centralWidget = new QWidget(this);

        QLabel *fontLabel = new QLabel(tr("Font:"), centralWidget);
        fontCombo = new QComboBox(centralWidget);
        QLabel *styleLabel = new QLabel(tr("Style:"), centralWidget);
        styleCombo = new QComboBox(centralWidget);

        view = new QScrollArea(centralWidget);
        characterWidget = new CharacterWidget;
        view->setWidget(characterWidget);

        findFonts();
        findStyles();

        lineEdit = new QLineEdit(centralWidget);
        QPushButton *clipboardButton = new QPushButton(tr("&To clipboard"), centralWidget);

        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(centralWidget);
        centralLayout->addLayout(controlsLayout);
        centralLayout->addWidget(view, 1);
        centralLayout->addSpacing(4);
        centralLayout->addLayout(lineLayout);

        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);
    }


Copyright © 2005 Trolltech Trademarks
Qt 4.0.0-b2