mainwindow.cpp

奇趣公司比较新的qt/emd版本

    if (ok)
        ok = restoreState(layout_data);

    if (!ok) {
        QString msg = tr("Error reading %1")
                        .arg(fileName);
        QMessageBox::warning(this, tr("Error"), msg);
        return;
    }
}

QAction *addAction(QMenu *menu, const QString &text, QActionGroup *group, QSignalMapper *mapper,
                    int id)
{
    bool first = group->actions().isEmpty();
    QAction *result = menu->addAction(text);
    result->setCheckable(true);
    result->setChecked(first);
    group->addAction(result);
    QObject::connect(result, SIGNAL(triggered()), mapper, SLOT(map()));
    mapper->setMapping(result, id);
    return result;
}

class BlueTitleBar : public QWidget
{
    Q_OBJECT
public:
    BlueTitleBar(QWidget *parent = 0);

    QSize sizeHint() const { return minimumSizeHint(); }
    QSize minimumSizeHint() const;
protected:
    void paintEvent(QPaintEvent *event);
    void mousePressEvent(QMouseEvent *event);
private:
    QPixmap leftPm, centerPm, rightPm;
};

QSize BlueTitleBar::minimumSizeHint() const
{
    QDockWidget *dw = qobject_cast<QDockWidget*>(parentWidget());
    Q_ASSERT(dw != 0);
    QSize result(leftPm.width() + rightPm.width(), centerPm.height());
    if (dw->features() & QDockWidget::DockWidgetVerticalTitleBar)
        result.transpose();
    return result;
}

BlueTitleBar::BlueTitleBar(QWidget *parent)
    : QWidget(parent)
{
    leftPm = QPixmap(":/res/titlebarLeft.png");
    centerPm = QPixmap(":/res/titlebarCenter.png");
    rightPm = QPixmap(":/res/titlebarRight.png");
}

void BlueTitleBar::paintEvent(QPaintEvent*)
{
    QPainter painter(this);
    QRect rect = this->rect();

    QDockWidget *dw = qobject_cast<QDockWidget*>(parentWidget());
    Q_ASSERT(dw != 0);

    if (dw->features() & QDockWidget::DockWidgetVerticalTitleBar) {
        QSize s = rect.size();
        s.transpose();
        rect.setSize(s);

        painter.translate(rect.left(), rect.top() + rect.width());
        painter.rotate(-90);
        painter.translate(-rect.left(), -rect.top());
    }

    painter.drawPixmap(rect.topLeft(), leftPm);
    painter.drawPixmap(rect.topRight() - QPoint(rightPm.width() - 1, 0), rightPm);
    QBrush brush(centerPm);
    painter.fillRect(rect.left() + leftPm.width(), rect.top(),
                        rect.width() - leftPm.width() - rightPm.width(),
                        centerPm.height(), centerPm);
}

void BlueTitleBar::mousePressEvent(QMouseEvent *event)
{
    QPoint pos = event->pos();

    QRect rect = this->rect();

    QDockWidget *dw = qobject_cast<QDockWidget*>(parentWidget());
    Q_ASSERT(dw != 0);

    if (dw->features() & QDockWidget::DockWidgetVerticalTitleBar) {
        QPoint p = pos;
        pos.setX(rect.left() + rect.bottom() - p.y());
        pos.setY(rect.top() + p.x() - rect.left());

        QSize s = rect.size();
        s.transpose();
        rect.setSize(s);
    }

    const int buttonRight = 7;
    const int buttonWidth = 20;
    int right = rect.right() - pos.x();
    int button = (right - buttonRight)/buttonWidth;
    switch (button) {
        case 0:
            event->accept();
            dw->close();
            break;
        case 1:
            event->accept();
            dw->setFloating(!dw->isFloating());
            break;
        case 2: {
            event->accept();
            QDockWidget::DockWidgetFeatures features = dw->features();
            if (features & QDockWidget::DockWidgetVerticalTitleBar)
                features &= ~QDockWidget::DockWidgetVerticalTitleBar;
            else
                features |= QDockWidget::DockWidgetVerticalTitleBar;
            dw->setFeatures(features);
            break;
        }
        default:
            event->ignore();
            break;
    }
}

void MainWindow::setupDockWidgets(const QMap<QString, QSize> &customSizeHints)
{
    mapper = new QSignalMapper(this);
    connect(mapper, SIGNAL(mapped(int)), this, SLOT(setCorner(int)));

    QMenu *corner_menu = dockWidgetMenu->addMenu(tr("Top left corner"));
    QActionGroup *group = new QActionGroup(this);
    group->setExclusive(true);
    ::addAction(corner_menu, tr("Top dock area"), group, mapper, 0);
    ::addAction(corner_menu, tr("Left dock area"), group, mapper, 1);

    corner_menu = dockWidgetMenu->addMenu(tr("Top right corner"));
    group = new QActionGroup(this);
    group->setExclusive(true);
    ::addAction(corner_menu, tr("Top dock area"), group, mapper, 2);
    ::addAction(corner_menu, tr("Right dock area"), group, mapper, 3);

    corner_menu = dockWidgetMenu->addMenu(tr("Bottom left corner"));
    group = new QActionGroup(this);
    group->setExclusive(true);
    ::addAction(corner_menu, tr("Bottom dock area"), group, mapper, 4);
    ::addAction(corner_menu, tr("Left dock area"), group, mapper, 5);

    corner_menu = dockWidgetMenu->addMenu(tr("Bottom right corner"));
    group = new QActionGroup(this);
    group->setExclusive(true);
    ::addAction(corner_menu, tr("Bottom dock area"), group, mapper, 6);
    ::addAction(corner_menu, tr("Right dock area"), group, mapper, 7);

    dockWidgetMenu->addSeparator();

    static const struct Set {
        const char * name;
        uint flags;
        Qt::DockWidgetArea area;
    } sets [] = {
#ifndef Q_WS_MAC
        { "Black", 0, Qt::LeftDockWidgetArea },
#else
        { "Black", Qt::Drawer, Qt::LeftDockWidgetArea },
#endif
        { "White", 0, Qt::RightDockWidgetArea },
        { "Red", 0, Qt::TopDockWidgetArea },
        { "Green", 0, Qt::TopDockWidgetArea },
        { "Blue", 0, Qt::BottomDockWidgetArea },
        { "Yellow", 0, Qt::BottomDockWidgetArea }
    };
    const int setCount = sizeof(sets) / sizeof(Set);

    for (int i = 0; i < setCount; ++i) {
        ColorSwatch *swatch = new ColorSwatch(tr(sets[i].name), this, Qt::WindowFlags(sets[i].flags));
        if (i%2)
            swatch->setWindowIcon(QIcon(QPixmap(":/res/qt.png")));
        if (qstrcmp(sets[i].name, "Blue") == 0) {
            swatch->setTitleBarWidget(new BlueTitleBar(swatch));
#ifdef Q_WS_QWS
            QPalette pal = palette();
            pal.setBrush(backgroundRole(), QColor(0,0,0,0));
            swatch->setPalette(pal);
#endif
        }

        QString name = QString::fromLatin1(sets[i].name);
        if (customSizeHints.contains(name))
            swatch->setCustomSizeHint(customSizeHints.value(name));

        addDockWidget(sets[i].area, swatch);
        dockWidgetMenu->addMenu(swatch->menu);
    }
}

void MainWindow::setCorner(int id)
{
    switch (id) {
        case 0:
            QMainWindow::setCorner(Qt::TopLeftCorner, Qt::TopDockWidgetArea);
            break;
        case 1:
            QMainWindow::setCorner(Qt::TopLeftCorner, Qt::LeftDockWidgetArea);
            break;
        case 2:
            QMainWindow::setCorner(Qt::TopRightCorner, Qt::TopDockWidgetArea);
            break;
        case 3:
            QMainWindow::setCorner(Qt::TopRightCorner, Qt::RightDockWidgetArea);
            break;
        case 4:
            QMainWindow::setCorner(Qt::BottomLeftCorner, Qt::BottomDockWidgetArea);
            break;
        case 5:
            QMainWindow::setCorner(Qt::BottomLeftCorner, Qt::LeftDockWidgetArea);
            break;
        case 6:
            QMainWindow::setCorner(Qt::BottomRightCorner, Qt::BottomDockWidgetArea);
            break;
        case 7:
            QMainWindow::setCorner(Qt::BottomRightCorner, Qt::RightDockWidgetArea);
            break;
    }
}

void MainWindow::switchLayoutDirection()
{
    if (layoutDirection() == Qt::LeftToRight)
        qApp->setLayoutDirection(Qt::RightToLeft);
    else
        qApp->setLayoutDirection(Qt::LeftToRight);
}

#include "mainwindow.moc"