qtoolbar.cpp

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#include "qtoolbar.h"

#ifndef QT_NO_TOOLBAR

#include <qapplication.h>
#include <qcombobox.h>
#include <qevent.h>
#include <qlayout.h>
#include <qmainwindow.h>
#include <qmenu.h>
#include <qmenubar.h>
#include <qrubberband.h>
#include <qsignalmapper.h>
#include <qstylepainter.h>
#include <qtoolbutton.h>
#include <qwidgetaction.h>
#include <qtimer.h>
#include <private/qwidgetaction_p.h>
#ifdef Q_WS_MAC
#include <private/qt_mac_p.h>
#include <private/qt_cocoa_helpers_mac_p.h>
#endif

#include <private/qmainwindowlayout_p.h>

#include "qtoolbar_p.h"
#include "qtoolbarseparator_p.h"
#include "qtoolbarlayout_p.h"

#include  "qdebug.h"

#define POPUP_TIMER_INTERVAL 500

QT_BEGIN_NAMESPACE

#ifdef Q_WS_MAC
static void qt_mac_updateToolBarButtonHint(QWidget *parentWidget)
{
    if (!(parentWidget->windowFlags() & Qt::CustomizeWindowHint))
        parentWidget->setWindowFlags(parentWidget->windowFlags() | Qt::MacWindowToolBarButtonHint);
}
#endif

// qmainwindow.cpp
extern QMainWindowLayout *qt_mainwindow_layout(const QMainWindow *window);

/******************************************************************************
** QToolBarPrivate
*/

void QToolBarPrivate::init()
{
    Q_Q(QToolBar);
    q->setSizePolicy(QSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed));
    q->setBackgroundRole(QPalette::Button);
    q->setAttribute(Qt::WA_Hover);
    q->setAttribute(Qt::WA_X11NetWmWindowTypeToolBar);

    QStyle *style = q->style();
    int e = style->pixelMetric(QStyle::PM_ToolBarIconSize, 0, q);
    iconSize = QSize(e, e);

    layout = new QToolBarLayout(q);
    layout->updateMarginAndSpacing();

#ifdef Q_WS_MAC
    if (q->parentWidget() && q->parentWidget()->isWindow()) {
        // Make sure that the window has the "toolbar" button.
        QWidget *parentWidget = q->parentWidget();
        qt_mac_updateToolBarButtonHint(parentWidget);
        reinterpret_cast<QToolBar *>(parentWidget)->d_func()->createWinId(); // Please let me create your winId...
        extern OSWindowRef qt_mac_window_for(const QWidget *); // qwidget_mac.cpp
        macWindowToolbarShow(q->parentWidget(), true);
    }
#endif

    toggleViewAction = new QAction(q);
    toggleViewAction->setCheckable(true);
    q->setMovable(q->style()->styleHint(QStyle::SH_ToolBar_Movable, 0, q ));
    QObject::connect(toggleViewAction, SIGNAL(triggered(bool)), q, SLOT(_q_toggleView(bool)));
}

void QToolBarPrivate::_q_toggleView(bool b)
{
    Q_Q(QToolBar);
    if (b == q->isHidden()) {
        if (b)
            q->show();
        else
            q->close();
    }
}

void QToolBarPrivate::_q_updateIconSize(const QSize &sz)
{
    Q_Q(QToolBar);
    if (!explicitIconSize) {
        // iconSize not explicitly set
        q->setIconSize(sz);
        explicitIconSize = false;
    }
}

void QToolBarPrivate::_q_updateToolButtonStyle(Qt::ToolButtonStyle style)
{
    Q_Q(QToolBar);
    if (!explicitToolButtonStyle) {
        q->setToolButtonStyle(style);
        explicitToolButtonStyle = false;
    }
}

void QToolBarPrivate::updateWindowFlags(bool floating, bool unplug)
{
    Q_Q(QToolBar);
    Qt::WindowFlags flags = floating ? Qt::Tool : Qt::Widget;

    flags |= Qt::FramelessWindowHint;

    if (unplug) {
        flags |= Qt::X11BypassWindowManagerHint;
#ifdef Q_WS_MAC
        flags |= Qt::WindowStaysOnTopHint;
#endif
    }

    q->setWindowFlags(flags);
}

void QToolBarPrivate::setWindowState(bool floating, bool unplug, const QRect &rect)
{
    Q_Q(QToolBar);
    bool visible = !q->isHidden();
    bool wasFloating = q->isFloating(); // ...is also currently using popup menus

    q->hide();

    updateWindowFlags(floating, unplug);

    if (floating != wasFloating)
        layout->checkUsePopupMenu();

    if (!rect.isNull())
        q->setGeometry(rect);

    if (visible)
        q->show();

    if (floating != wasFloating)
        emit q->topLevelChanged(floating);
}

void QToolBarPrivate::initDrag(const QPoint &pos)
{
    Q_Q(QToolBar);

    if (state != 0)
        return;

    QMainWindow *win = qobject_cast<QMainWindow*>(parent);
    Q_ASSERT(win != 0);
    QMainWindowLayout *layout = qt_mainwindow_layout(win);
    Q_ASSERT(layout != 0);
    if (layout->pluggingWidget != 0) // the main window is animating a docking operation
        return;

    state = new DragState;
    state->pressPos = pos;
    state->dragging = false;
    state->moving = false;
    state->widgetItem = 0;

    if (q->isRightToLeft())
        state->pressPos = QPoint(q->width() - state->pressPos.x(), state->pressPos.y());
}

void QToolBarPrivate::startDrag(bool moving)
{
    Q_Q(QToolBar);

    Q_ASSERT(state != 0);

    if ((moving && state->moving) || state->dragging)
        return;

    QMainWindow *win = qobject_cast<QMainWindow*>(parent);
    Q_ASSERT(win != 0);
    QMainWindowLayout *layout = qt_mainwindow_layout(win);
    Q_ASSERT(layout != 0);

    if (!moving) {
        state->widgetItem = layout->unplug(q);
#if defined(Q_WS_MAC) && !defined(QT_MAC_USE_COCOA)
        if (q->isWindow()) {
           setWindowState(true, true); //set it to floating
        }
#endif
        Q_ASSERT(state->widgetItem != 0);
    }
    state->dragging = !moving;
    state->moving = moving;
}

void QToolBarPrivate::endDrag()
{
    Q_Q(QToolBar);
    Q_ASSERT(state != 0);

    q->releaseMouse();

    if (state->dragging) {
        QMainWindowLayout *layout = qt_mainwindow_layout(qobject_cast<QMainWindow *>(q->parentWidget()));
        Q_ASSERT(layout != 0);

        if (!layout->plug(state->widgetItem)) {
            if (q->isFloatable()) {
                layout->restore();
#if defined(Q_WS_X11) || defined(Q_WS_MAC)
                setWindowState(true); // gets rid of the X11BypassWindowManager window flag
                                      // and activates the resizer
#endif
                q->activateWindow();
            } else {
                layout->revert(state->widgetItem);
            }
        }
    }

    delete state;
    state = 0;
}

bool QToolBarPrivate::mousePressEvent(QMouseEvent *event)
{
    Q_Q(QToolBar);
    QStyleOptionToolBar opt;
    q->initStyleOption(&opt);
    if (q->style()->subElementRect(QStyle::SE_ToolBarHandle, &opt, q).contains(event->pos()) == false) {
#ifdef Q_WS_MAC
        // When using the unified toolbar on Mac OS X the user can can click and
        // drag between toolbar contents to move the window. Make this work by
        // implementing the standard mouse-dragging code and then call
        // window->move() in mouseMoveEvent below.
        if (QMainWindow *mainWindow = qobject_cast<QMainWindow *>(parent)) {
            if (mainWindow->toolBarArea(q) == Qt::TopToolBarArea
                    && mainWindow->unifiedTitleAndToolBarOnMac()
                    && q->childAt(event->pos()) == 0) {
                macWindowDragging = true;
                macWindowDragPressPosition = event->pos();
                return true;
            }
        }
#endif
        return false;
    }

    if (event->button() != Qt::LeftButton)
        return true;

    if (!layout->movable())
        return true;

    initDrag(event->pos());
    return true;
}

bool QToolBarPrivate::mouseReleaseEvent(QMouseEvent*)
{
    if (state != 0) {
        endDrag();
        return true;
    } else {
#ifdef Q_WS_MAC
        if (!macWindowDragging)
            return false;
        macWindowDragging = false;
        macWindowDragPressPosition = QPoint();
        return true;
#endif
        return false;
    }
}

bool QToolBarPrivate::mouseMoveEvent(QMouseEvent *event)
{
    Q_Q(QToolBar);

    if (!state) {
#ifdef Q_WS_MAC
        if (!macWindowDragging)
            return false;
        QWidget *w = q->window();
        const QPoint delta = event->pos() - macWindowDragPressPosition;
        w->move(w->pos() + delta);
        return true;
#endif
        return false;
    }

    QMainWindow *win = qobject_cast<QMainWindow*>(parent);
    if (win == 0)
        return true;

    QMainWindowLayout *layout = qt_mainwindow_layout(win);
    Q_ASSERT(layout != 0);

    if (layout->pluggingWidget == 0
        && (event->pos() - state->pressPos).manhattanLength() > QApplication::startDragDistance()) {
            const bool wasDragging = state->dragging;
            const bool moving = !q->isWindow() && (orientation == Qt::Vertical ?
                event->x() >= 0 && event->x() < q->width() :
                event->y() >= 0 && event->y() < q->height());

            startDrag(moving);
            if (!moving && !wasDragging) {
#ifdef Q_OS_WIN
                grabMouseWhileInWindow();
#else
                q->grabMouse();
#endif
            }
    }

    if (state->dragging) {
        QPoint pos = event->globalPos();
        // if we are right-to-left, we move so as to keep the right edge the same distance
        // from the mouse
        if (q->isLeftToRight())
            pos -= state->pressPos;
        else
            pos += QPoint(state->pressPos.x() - q->width(), -state->pressPos.y());

        q->move(pos);
        layout->hover(state->widgetItem, event->globalPos());
    } else if (state->moving) {

        const QPoint rtl(q->width() - state->pressPos.x(), state->pressPos.y()); //for RTL
        const QPoint globalPressPos = q->mapToGlobal(q->isRightToLeft() ? rtl : state->pressPos);
        int pos = 0;

        QPoint delta = event->globalPos() - globalPressPos;
        if (orientation == Qt::Vertical) {
            pos = q->y() + delta.y();
        } else {
            if (q->isRightToLeft()) {
                pos = win->width() - q->width() - q->x()  - delta.x();
            } else {
                pos = q->x() + delta.x();
            }
        }

        layout->moveToolBar(q, pos);
    }
    return true;
}

void QToolBarPrivate::unplug(const QRect &_r)
{
    Q_Q(QToolBar);
    QRect r = _r;
    r.moveTopLeft(q->mapToGlobal(QPoint(0, 0)));
    setWindowState(true, true, r);
    layout->setExpanded(false);
}

void QToolBarPrivate::plug(const QRect &r)
{
    setWindowState(false, false, r);
}

/******************************************************************************
** QToolBar
*/

QToolBar::QToolBar(QWidget *parent)
    : QWidget(*new QToolBarPrivate, parent, 0)
{
    Q_D(QToolBar);
    d->init();
}

QToolBar::QToolBar(const QString &title, QWidget *parent)
    : QWidget(*new QToolBarPrivate, parent, 0)
{
    Q_D(QToolBar);
    d->init();
    setWindowTitle(title);
}

#ifdef QT3_SUPPORT

QToolBar::QToolBar(QWidget *parent, const char *name)
    : QWidget(*new QToolBarPrivate, parent, 0)
{
    Q_D(QToolBar);
    d->init();
    setObjectName(QString::fromAscii(name));
}
#endif

QToolBar::~QToolBar()
{
    // Remove the toolbar button if there is nothing left.
    QMainWindow *mainwindow = qobject_cast<QMainWindow *>(parentWidget());
    if (mainwindow) {
#ifdef Q_WS_MAC
        QMainWindowLayout *mainwin_layout = qt_mainwindow_layout(mainwindow);
        if (mainwin_layout && mainwin_layout->layoutState.toolBarAreaLayout.isEmpty()
                && mainwindow->testAttribute(Qt::WA_WState_Created))
            macWindowToolbarShow(mainwindow, false);
#endif
    }
}

void QToolBar::setMovable(bool movable)
{
    Q_D(QToolBar);
    if (!movable == !d->movable)
        return;
    d->movable = movable;
    d->layout->invalidate();
    emit movableChanged(d->movable);
}

bool QToolBar::isMovable() const
{
    Q_D(const QToolBar);
    return d->movable;
}

bool QToolBar::isFloatable() const
{
    Q_D(const QToolBar);
    return d->floatable;
}

void QToolBar::setFloatable(bool floatable)
{
    Q_D(QToolBar);
    d->floatable = floatable;
}

bool QToolBar::isFloating() const
{
    return isWindow();
}

void QToolBar::setAllowedAreas(Qt::ToolBarAreas areas)
{
    Q_D(QToolBar);
    areas &= Qt::ToolBarArea_Mask;
    if (areas == d->allowedAreas)
        return;
    d->allowedAreas = areas;
    emit allowedAreasChanged(d->allowedAreas);
}

Qt::ToolBarAreas QToolBar::allowedAreas() const
{
    Q_D(const QToolBar);
#ifdef Q_WS_MAC
    if (QMainWindow *window = qobject_cast<QMainWindow *>(parentWidget())) {
        if (window->unifiedTitleAndToolBarOnMac()) // Don't allow drags to the top (for now).
            return (d->allowedAreas & ~Qt::TopToolBarArea);
    }
#endif
    return d->allowedAreas;
}

void QToolBar::setOrientation(Qt::Orientation orientation)
{
    Q_D(QToolBar);
    if (orientation == d->orientation)
        return;

    d->orientation = orientation;

    if (orientation == Qt::Vertical)
    setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Preferred));
    else
    setSizePolicy(QSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed));

    d->layout->invalidate();
    d->layout->activate();

    emit orientationChanged(d->orientation);
}

Qt::Orientation QToolBar::orientation() const
{ Q_D(const QToolBar); return d->orientation; }

QSize QToolBar::iconSize() const
{ Q_D(const QToolBar); return d->iconSize; }

void QToolBar::setIconSize(const QSize &iconSize)
{
    Q_D(QToolBar);
    QSize sz = iconSize;
    if (!sz.isValid()) {
        QMainWindow *mw = qobject_cast<QMainWindow *>(parentWidget());
        if (mw && mw->layout()) {
            QLayout *layout = mw->layout();
            int i = 0;
            QLayoutItem *item = 0;
            do {
                item = layout->itemAt(i++);
                if (item && (item->widget() == this))
                    sz = mw->iconSize();
            } while (!sz.isValid() && item != 0);
        }
    }
    if (!sz.isValid()) {
        const int metric = style()->pixelMetric(QStyle::PM_ToolBarIconSize, 0, this);
        sz = QSize(metric, metric);
    }
    if (d->iconSize != sz) {
        d->iconSize = sz;
        setMinimumSize(0, 0);
        emit iconSizeChanged(d->iconSize);
    }
    d->explicitIconSize = iconSize.isValid();

    d->layout->invalidate();
}

Qt::ToolButtonStyle QToolBar::toolButtonStyle() const
{ Q_D(const QToolBar); return d->toolButtonStyle; }

void QToolBar::setToolButtonStyle(Qt::ToolButtonStyle toolButtonStyle)
{
    Q_D(QToolBar);
    d->explicitToolButtonStyle = true;
    if (d->toolButtonStyle == toolButtonStyle)
        return;
    d->toolButtonStyle = toolButtonStyle;
    setMinimumSize(0, 0);
    emit toolButtonStyleChanged(d->toolButtonStyle);
}

void QToolBar::clear()
{
    QList<QAction *> actions = this->actions();
    for(int i = 0; i < actions.size(); i++)
        removeAction(actions.at(i));
}

QAction *QToolBar::addAction(const QString &text)
{
    QAction *action = new QAction(text, this);
    addAction(action);
    return action;
}

QAction *QToolBar::addAction(const QIcon &icon, const QString &text)
{
    QAction *action = new QAction(icon, text, this);
    addAction(action);
    return action;
}

QAction *QToolBar::addAction(const QString &text,
                             const QObject *receiver, const char* member)
{
    QAction *action = new QAction(text, this);
    QObject::connect(action, SIGNAL(triggered(bool)), receiver, member);
    addAction(action);
    return action;
}

QAction *QToolBar::addAction(const QIcon &icon, const QString &text,
                             const QObject *receiver, const char* member)
{
    QAction *action = new QAction(icon, text, this);
    QObject::connect(action, SIGNAL(triggered(bool)), receiver, member);
    addAction(action);
    return action;
}

QAction *QToolBar::addSeparator()
{
    QAction *action = new QAction(this);
    action->setSeparator(true);
    addAction(action);
    return action;
}

QAction *QToolBar::insertSeparator(QAction *before)
{
    QAction *action = new QAction(this);
    action->setSeparator(true);
    insertAction(before, action);
    return action;
}

QAction *QToolBar::addWidget(QWidget *widget)
{
    QWidgetAction *action = new QWidgetAction(this);
    action->setDefaultWidget(widget);
    action->d_func()->autoCreated = true;
    addAction(action);
    return action;
}

QAction *QToolBar::insertWidget(QAction *before, QWidget *widget)
{
    QWidgetAction *action = new QWidgetAction(this);
    action->setDefaultWidget(widget);
    action->d_func()->autoCreated = true;
    insertAction(before, action);
    return action;
}

QRect QToolBar::actionGeometry(QAction *action) const
{
    Q_D(const QToolBar);

    int index = d->layout->indexOf(action);
    if (index == -1)
        return QRect();
    return d->layout->itemAt(index)->widget()->geometry();
}

QAction *QToolBar::actionAt(const QPoint &p) const
{
    Q_D(const QToolBar);
    QWidget *widget = childAt(p);
    int index = d->layout->indexOf(widget);
    if (index == -1)
        return 0;
    QLayoutItem *item = d->layout->itemAt(index);
    return static_cast<QToolBarItem*>(item)->action;
}

void QToolBar::actionEvent(QActionEvent *event)
{
    Q_D(QToolBar);
    QAction *action = event->action();
    QWidgetAction *widgetAction = qobject_cast<QWidgetAction *>(action);

    switch (event->type()) {
        case QEvent::ActionAdded: {
            Q_ASSERT_X(widgetAction == 0 || d->layout->indexOf(widgetAction) == -1,
                        "QToolBar", "widgets cannot be inserted multiple times");

            // reparent the action to this toolbar if it has been created
            // using the addAction(text) etc. convenience functions, to
            // preserve Qt 4.1.x behavior. The widget is already
            // reparented to us due to the createWidget call inside
            // createItem()
            if (widgetAction != 0 && widgetAction->d_func()->autoCreated)
                widgetAction->setParent(this);

            int index = d->layout->count();
            if (event->before()) {
                index = d->layout->indexOf(event->before());
                Q_ASSERT_X(index != -1, "QToolBar::insertAction", "internal error");
            }
            d->layout->insertAction(index, action);
            break;
        }

        case QEvent::ActionChanged:
            d->layout->invalidate();
            break;

        case QEvent::ActionRemoved: {
            int index = d->layout->indexOf(action);
            if (index != -1) {
                delete d->layout->takeAt(index);
            }
            break;
        }

        default:
            Q_ASSERT_X(false, "QToolBar::actionEvent", "internal error");
    }
}

void QToolBar::changeEvent(QEvent *event)
{
    Q_D(QToolBar);
    switch (event->type()) {
    case QEvent::WindowTitleChange:
        d->toggleViewAction->setText(windowTitle());
        break;
    case QEvent::StyleChange:
        d->layout->invalidate();
        if (!d->explicitIconSize)
            setIconSize(QSize());
        d->layout->updateMarginAndSpacing();
        break;
    case QEvent::LayoutDirectionChange:
        d->layout->invalidate();
        break;
    default:
        break;
    }
    QWidget::changeEvent(event);
}

void QToolBar::paintEvent(QPaintEvent *)
{
    Q_D(QToolBar);

    QPainter p(this);
    QStyle *style = this->style();
    QStyleOptionToolBar opt;
    initStyleOption(&opt);

    if (d->layout->expanded || d->layout->animating || isWindow()) {
        //if the toolbar is expended, we need to fill the background with the window color
        //because some styles may expects that.
        p.fillRect(opt.rect, palette().background());
        style->drawControl(QStyle::CE_ToolBar, &opt, &p, this);
        style->drawPrimitive(QStyle::PE_FrameMenu, &opt, &p, this);
    } else {
        style->drawControl(QStyle::CE_ToolBar, &opt, &p, this);
    }

    opt.rect = style->subElementRect(QStyle::SE_ToolBarHandle, &opt, this);
    if (opt.rect.isValid())
        style->drawPrimitive(QStyle::PE_IndicatorToolBarHandle, &opt, &p, this);
}

/*
    Checks if an expanded toolbar has to wait for this popup to close before
    the toolbar collapses. This is true if
    1) the popup has the toolbar in its parent chain,
    2) the popup is a menu whose menuAction is somewhere in the toolbar.
*/
static bool waitForPopup(QToolBar *tb, QWidget *popup)
{
    if (popup == 0 || popup->isHidden())
        return false;

    QWidget *w = popup;
    while (w != 0) {
        if (w == tb)
            return true;
        w = w->parentWidget();
    }

    QMenu *menu = qobject_cast<QMenu*>(popup);
    if (menu == 0)
        return false;

    QAction *action = menu->menuAction();
    QList<QWidget*> widgets = action->associatedWidgets();
    for (int i = 0; i < widgets.count(); ++i) {
        if (waitForPopup(tb, widgets.at(i)))
            return true;
    }

    return false;
}

#if defined(Q_WS_MAC)
static bool toolbarInUnifiedToolBar(QToolBar *toolbar)
{
    const QMainWindow *mainWindow = qobject_cast<const QMainWindow *>(toolbar->parentWidget());
    return mainWindow && mainWindow->unifiedTitleAndToolBarOnMac()
            && mainWindow->toolBarArea(toolbar) == Qt::TopToolBarArea;
}
#endif

bool QToolBar::event(QEvent *event)
{
    Q_D(QToolBar);

    switch (event->type()) {
    case QEvent::Timer:
        if (d->waitForPopupTimer.timerId() == static_cast<QTimerEvent*>(event)->timerId()) {
            QWidget *w = QApplication::activePopupWidget();
            if (!waitForPopup(this, w)) {
                d->waitForPopupTimer.stop();
                if (!this->underMouse())
                    d->layout->setExpanded(false);
            }
        }
        break;
    case QEvent::Hide:
        if (!isHidden())
            break;
        // fallthrough intended
    case QEvent::Show:
        d->toggleViewAction->setChecked(event->type() == QEvent::Show);
        emit visibilityChanged(event->type() == QEvent::Show);
#if defined(Q_WS_MAC)
        if (toolbarInUnifiedToolBar(this)) {
             // I can static_cast because I did the qobject_cast in the if above, therefore
            // we must have a QMainWindowLayout here.
            QMainWindowLayout *mwLayout = qt_mainwindow_layout(qobject_cast<QMainWindow *>(parentWidget()));
            mwLayout->fixSizeInUnifiedToolbar(this);
            mwLayout->syncUnifiedToolbarVisibility();
        }
#  if !defined(QT_MAC_USE_COCOA)
        // Fall through
    case QEvent::LayoutRequest: {
        // There's currently no way to invalidate the size and let
        // HIToolbar know about it. This forces a re-check.
        int earlyResult = -1;
        if (QMainWindow *mainWindow = qobject_cast<QMainWindow *>(parentWidget())) {
            bool needUpdate = true;
            if (event->type() == QEvent::LayoutRequest) {
                QSize oldSizeHint = sizeHint();
                earlyResult = QWidget::event(event) ? 1 : 0;
                needUpdate = oldSizeHint != sizeHint();
            }

            if (needUpdate) {
                OSWindowRef windowRef = qt_mac_window_for(mainWindow);
                if (toolbarInUnifiedToolBar(this)
                        && macWindowToolbarIsVisible(windowRef))   {
                    DisableScreenUpdates();
                    macWindowToolbarShow(this, false);
                    macWindowToolbarShow(this, true);
                    EnableScreenUpdates();
                }
            }

            if (earlyResult != -1)
                return earlyResult;
        }
    }
#  endif // !QT_MAC_USE_COCOA
#endif // Q_WS_MAC
        break;
    case QEvent::ParentChange:
        d->layout->checkUsePopupMenu();
#if defined(Q_WS_MAC)
        if (parentWidget() && parentWidget()->isWindow())
            qt_mac_updateToolBarButtonHint(parentWidget());
#endif
        break;

    case QEvent::MouseButtonPress: {
        if (d->mousePressEvent(static_cast<QMouseEvent*>(event)))
            return true;
        break;
    }
    case QEvent::MouseButtonRelease:
        if (d->mouseReleaseEvent(static_cast<QMouseEvent*>(event)))
            return true;
        break;
    case QEvent::HoverEnter:
    case QEvent::HoverLeave:
        // there's nothing special to do here and we don't want to update the whole widget
        return true;
    case QEvent::HoverMove: {
#ifndef QT_NO_CURSOR
        QHoverEvent *e = static_cast<QHoverEvent*>(event);
        QStyleOptionToolBar opt;
        initStyleOption(&opt);
        if (style()->subElementRect(QStyle::SE_ToolBarHandle, &opt, this).contains(e->pos()))
            setCursor(Qt::SizeAllCursor);
        else
            unsetCursor();
#endif
        break;
    }
    case QEvent::MouseMove:
        if (d->mouseMoveEvent(static_cast<QMouseEvent*>(event)))
            return true;
        break;
#ifdef Q_WS_WINCE
    case QEvent::ContextMenu:
        {
            QContextMenuEvent* contextMenuEvent = static_cast<QContextMenuEvent*>(event);
            QWidget* child = childAt(contextMenuEvent->pos());
            QAbstractButton* button = qobject_cast<QAbstractButton*>(child);
            if (button)
                button->setDown(false);
        }
        break;
#endif
    case QEvent::Leave:
        if (d->state != 0 && d->state->dragging) {
#ifdef Q_OS_WIN
            // This is a workaround for loosing the mouse on Vista.
            QPoint pos = QCursor::pos();
            QMouseEvent fake(QEvent::MouseMove, mapFromGlobal(pos), pos, Qt::NoButton,
                             QApplication::mouseButtons(), QApplication::keyboardModifiers());
            d->mouseMoveEvent(&fake);
#endif
        } else {
            if (!d->layout->expanded)
                break;

            QWidget *w = QApplication::activePopupWidget();
            if (waitForPopup(this, w)) {
                d->waitForPopupTimer.start(POPUP_TIMER_INTERVAL, this);
                break;
            }

            d->waitForPopupTimer.stop();
            d->layout->setExpanded(false);
            break;
        }
    default:
        break;
    }
    return QWidget::event(event);
}

QAction *QToolBar::toggleViewAction() const
{ Q_D(const QToolBar); return d->toggleViewAction; }

QWidget *QToolBar::widgetForAction(QAction *action) const
{
    Q_D(const QToolBar);

    int index = d->layout->indexOf(action);
    if (index == -1)
        return 0;

    return d->layout->itemAt(index)->widget();
}

extern QMainWindowLayout *qt_mainwindow_layout(const QMainWindow *window);

void QToolBar::initStyleOption(QStyleOptionToolBar *option) const
{
    Q_D(const QToolBar);

    if (!option)
        return;

    option->initFrom(this);
    if (orientation() == Qt::Horizontal)
        option->state |= QStyle::State_Horizontal;
    option->lineWidth = style()->pixelMetric(QStyle::PM_ToolBarFrameWidth, 0, this);
    option->features = d->layout->movable()
                        ? QStyleOptionToolBar::Movable
                        : QStyleOptionToolBar::None;
    // if the tool bar is not in a QMainWindow, this will make the painting right
    option->toolBarArea = Qt::NoToolBarArea;

    // Add more styleoptions if the toolbar has been added to a mainwindow.
    QMainWindow *mainWindow = qobject_cast<QMainWindow *>(parentWidget());

    if (!mainWindow)
        return;

    QMainWindowLayout *layout = qt_mainwindow_layout(mainWindow);
    Q_ASSERT_X(layout != 0, "QToolBar::initStyleOption()",
               "QMainWindow->layout() != QMainWindowLayout");

    layout->getStyleOptionInfo(option, const_cast<QToolBar *>(this));
}

void QToolBar::childEvent(QChildEvent *event) // ### remove me in 5.0
{
    QWidget::childEvent(event);
}

void QToolBar::resizeEvent(QResizeEvent *event) // ### remove me in 5.0
{
    QWidget::resizeEvent(event);
}

QT_END_NAMESPACE

#include "moc_qtoolbar.cpp"

#endif // QT_NO_TOOLBAR