q3dockwindow.cpp

奇趣公司比较新的qt/emd版本

        horHandle->hide();
        verHandle->hide();
        if (moveEnabled)
            titleBar->show();
        else
            titleBar->hide();
        titleBar->updateGui();
        hHandleTop->hide();
        vHandleLeft->hide();
        hHandleBottom->hide();
        vHandleRight->hide();
        setLineWidth(2);
        widgetResizeHandler->setActive(isResizeEnabled());
    } else {
        hbox->setMargin(0);
        titleBar->hide();
        if (orientation() == Qt::Horizontal) {
            horHandle->hide();
            if (moveEnabled)
                verHandle->show();
            else
                verHandle->hide();
#ifdef Q_WS_MAC
            if(horHandle->mousePressed) {
                horHandle->mousePressed = false;
                verHandle->mousePressed = true;
                verHandle->grabMouse();
            }
#endif
            verHandle->updateGui();
        } else {
            if (moveEnabled)
                horHandle->show();
            else
                horHandle->hide();
            horHandle->updateGui();
#ifdef Q_WS_MAC
            if(verHandle->mousePressed) {
                verHandle->mousePressed = false;
                horHandle->mousePressed = true;
                horHandle->grabMouse();
            }
#endif
            verHandle->hide();
        }
        if (isResizeEnabled()) {
            if (orientation() == Qt::Horizontal) {
                hHandleBottom->raise();
                hHandleTop->raise();
            } else {
                vHandleRight->raise();
                vHandleLeft->raise();
            }

            if (area()) {
                if (orientation() == Qt::Horizontal) {
                    if (area()->handlePosition() == Q3DockArea::Normal) {
                        hHandleBottom->show();
                        hHandleTop->hide();
                    } else {
                        hHandleTop->show();
                        hHandleBottom->hide();
                    }
                    if (!area()->isLastDockWindow(this))
                        vHandleRight->show();
                    else
                        vHandleRight->hide();
                    vHandleLeft->hide();
                } else {
                    if ((area()->handlePosition() == Q3DockArea::Normal) != QApplication::reverseLayout()) {
                        vHandleRight->show();
                        vHandleLeft->hide();
                    } else {
                        vHandleLeft->show();
                        vHandleRight->hide();
                    }
                    if (!area()->isLastDockWindow(this))
                        hHandleBottom->show();
                    else
                        hHandleBottom->hide();
                    hHandleTop->hide();
                }
            }
        }
#ifndef Q_OS_TEMP
        if (moveEnabled)
            setLineWidth(1);
        else
            setLineWidth(0);
#endif
        widgetResizeHandler->setActive(false);
    }
}

void Q3DockWindow::updatePosition(const QPoint &globalPos)
{
    if (curPlace == OutsideDock && state == InDock)
        lastSize = size();

    bool doAdjustSize = curPlace != state && state == OutsideDock;
    bool doUpdate = true;
    bool doOrientationChange = true;
    if (state != curPlace && state == InDock) {
        doUpdate = false;
        curPlace = state;
        updateGui();
        QApplication::sendPostedEvents();
    }
    Qt::Orientation oo = orientation();

    if (state == InDock) {
        if (tmpDockArea) {
            bool differentDocks = false;
            if (dockArea && dockArea != tmpDockArea) {
                differentDocks = true;
                delete (Q3DockArea::DockWindowData*)dockWindowData;
                dockWindowData = dockArea->dockWindowData(this);
                dockArea->removeDockWindow(this, false, false);
            }
            dockArea = tmpDockArea;
            if (differentDocks) {
                if (doUpdate) {
                    doUpdate = false;
                    curPlace = state;
                    updateGui();
                }
                emit orientationChanged(tmpDockArea->orientation());
                doOrientationChange = false;
            } else {
                updateGui();
            }
            dockArea->moveDockWindow(this, globalPos, currRect, startOrientation != oo);
        }
    } else {
        if (dockArea) {
            Q3MainWindow *mw = (Q3MainWindow*)dockArea->parentWidget();
            if (qobject_cast<Q3MainWindow*>(mw) &&
                 (!mw->isDockEnabled(Qt::DockTornOff) ||
                   !mw->isDockEnabled(this, Qt::DockTornOff)))
                return;
            delete (Q3DockArea::DockWindowData*)dockWindowData;
            dockWindowData = dockArea->dockWindowData(this);
            dockArea->removeDockWindow(this, true,
                startOrientation != Qt::Horizontal && qobject_cast<Q3ToolBar*>(this));
        }
        dockArea = 0;
        QPoint topLeft = currRect.topLeft();
        QRect screen = qApp->desktop()->availableGeometry(topLeft);
        if (!screen.contains(topLeft)) {
            topLeft.setY(qMax(topLeft.y(), screen.top()));
            topLeft.setY(qMin(topLeft.y(), screen.bottom()-height()));
            topLeft.setX(qMax(topLeft.x(), screen.left()));
            topLeft.setX(qMin(topLeft.x(), screen.right()-width()));
        }
        move(topLeft);
    }

    if (curPlace == InDock && state == OutsideDock && !qobject_cast<Q3ToolBar*>(this)) {
        if (lastSize != QSize(-1, -1))
            resize(lastSize);
    }

    if (doUpdate) {
        curPlace = state;
        updateGui();
    }
    if (doOrientationChange)
        emit orientationChanged(orientation());
    tmpDockArea = 0;
    if (doAdjustSize) {
        QApplication::sendPostedEvents(this, QEvent::LayoutHint);
        if (qobject_cast<Q3ToolBar*>(this))
            adjustSize();
        if (lastSize == QSize(-1, -1))
            setAttribute(Qt::WA_Resized, false); // Ensures size is recalculated (non-opaque).
        show();
        if (parentWidget() && isWindow())
            parentWidget()->setActiveWindow();

    }

    emit placeChanged(curPlace);
}

/*!
    Sets the dock window's main widget to \a w.

    \sa boxLayout()
*/

void Q3DockWindow::setWidget(QWidget *w)
{
    wid = w;
    boxLayout()->addWidget(w);
    updateGui();
}

/*!
    Returns the dock window's main widget.

    \sa setWidget()
*/

QWidget *Q3DockWindow::widget() const
{
    return wid;
}

void Q3DockWindow::startRectDraw(const QPoint &so, bool drawRect)
{
    state = place();
    if (rubberBand)
        endRectDraw(!opaque);
    rubberBand = new QRubberBand(QRubberBand::Rectangle);
    currRect = QRect(realWidgetPos(this), size());
    if (drawRect) {
        rubberBand->setGeometry(currRect);
    }
    startOrientation = orientation();
    startOffset = mapFromGlobal(so);
    rubberBand->show();
}

void Q3DockWindow::endRectDraw(bool)
{
    delete rubberBand;
    rubberBand = 0;
}

/*!
  \reimp
*/
void Q3DockWindow::drawFrame(QPainter *p)
{
    if (place() == InDock) {
        Q3Frame::drawFrame(p);
        return;
    }

    QStyleOptionFrame opt;
    opt.rect = rect();
    opt.palette = palette();
    opt.state = QStyle::State_None;
    if (titleBar->isActive())
        opt.state |= QStyle::State_Active;
    opt.lineWidth = lineWidth();
    opt.midLineWidth = midLineWidth();

    style()->drawPrimitive(QStyle::PE_FrameWindow, &opt, p, this);
}

/*!
  \reimp
*/
void Q3DockWindow::drawContents(QPainter *p)
{
    // This is only used by the PocketPC style. We probably need to revist later.
    QStyleOption opt(0, QStyleOption::SO_Default);
    opt.init(this);
    if (titleBar->isActive())
        opt.state |= QStyle::State_Active;
    style()->drawControl(QStyle::CE_Q3DockWindowEmptyArea, &opt, p, this);
}

/*!
    \property Q3DockWindow::resizeEnabled
    \brief whether the dock window is resizeable

    A resizeable dock window can be resized using splitter-like
    handles inside a dock area and like every other top level window
    when floating.

    A dock window is both horizontally and vertically stretchable if
    you call setResizeEnabled(true).

    This property is false by default.

    \sa setVerticallyStretchable() setHorizontallyStretchable()
*/

void Q3DockWindow::setResizeEnabled(bool b)
{
    resizeEnabled = b;
    updateGui();
}

/*!
    \property Q3DockWindow::movingEnabled
    \brief whether the user can move the dock window within the dock
    area, move the dock window to another dock area, or float the dock
    window.

    This property is true by default.
*/

void Q3DockWindow::setMovingEnabled(bool b)
{
    moveEnabled = b;
    updateGui();
}

bool Q3DockWindow::isResizeEnabled() const
{
    return resizeEnabled;
}

bool Q3DockWindow::isMovingEnabled() const
{
    return moveEnabled;
}

/*!
    \property Q3DockWindow::closeMode
    \brief the close mode of a dock window

    Defines when (if ever) the dock window has a close button. The
    choices are \c Never, \c Docked (i.e. only when docked), \c
    Undocked (only when undocked, i.e. floated) or \c Always.

    The default is \c Never.
*/

void Q3DockWindow::setCloseMode(int m)
{
    cMode = m;
    if (place() == InDock) {
        horHandle->updateGui();
        verHandle->updateGui();
    } else {
        titleBar->updateGui();
    }
}

/*!
    Returns true if the dock window has a close button; otherwise
    returns false. The result depends on the dock window's \l Place
    and its \l CloseMode.

    \sa setCloseMode()
*/

bool Q3DockWindow::isCloseEnabled() const
{
    return  ((cMode & Docked) == Docked && place() == InDock ||
              (cMode & Undocked) == Undocked && place() == OutsideDock);
}

int Q3DockWindow::closeMode() const
{
    return cMode;
}

/*!
    \property Q3DockWindow::horizontallyStretchable
    \brief whether the dock window is horizontally stretchable.

    A dock window is horizontally stretchable if you call
    setHorizontallyStretchable(true) or setResizeEnabled(true).

    \warning Stretchability is broken. You must call
    setResizeEnabled(true) to get proper behavior and even then
    Q3DockWindow does not limit stretchablilty.

    \sa setResizeEnabled()
*/

void Q3DockWindow::setHorizontallyStretchable(bool b)
{
    stretchable[Qt::Horizontal] = b;
}

/*!
    \property Q3DockWindow::verticallyStretchable
    \brief whether the dock window is vertically stretchable.

    A dock window is vertically stretchable if you call
    setVerticallyStretchable(true) or setResizeEnabled(true).

    \sa setResizeEnabled()

    \warning Stretchability is broken. You must call
    setResizeEnabled(true) to get proper behavior and even then
    Q3DockWindow does not limit stretchablilty.
*/

void Q3DockWindow::setVerticallyStretchable(bool b)
{
    stretchable[Qt::Vertical] = b;
}

bool Q3DockWindow::isHorizontallyStretchable() const
{
    return isResizeEnabled() || stretchable[Qt::Horizontal];
}

bool Q3DockWindow::isVerticallyStretchable() const
{
    return isResizeEnabled() || stretchable[Qt::Vertical];
}

/*!
    \property Q3DockWindow::stretchable
    \brief whether the dock window is stretchable in the current
    orientation()

    This property can be set using setHorizontallyStretchable() and
    setVerticallyStretchable(), or with setResizeEnabled().

    \warning Stretchability is broken. You must call
    setResizeEnabled(true) to get proper behavior and even then
    Q3DockWindow does not limit stretchablilty.

    \sa setResizeEnabled()
*/

bool Q3DockWindow::isStretchable() const
{
    if (orientation() == Qt::Horizontal)
        return isHorizontallyStretchable();
    return isVerticallyStretchable();
}