QMainWindowLayoutState Class Reference

#include <qmainwindowlayout_p.h>

Public Functions
void	apply (bool animated)
QWidget *	centralWidget () const
bool	checkFormat (QDataStream &stream, bool pre43)
void	clear ()
bool	contains (QWidget *widget) const
void	deleteAllLayoutItems ()
void	deleteCentralWidgetItem ()
void	fitLayout ()
QList< int >	gapIndex (QWidget *widget, const QPoint &pos) const
QRect	gapRect (const QList< int > &path) const
QList< int >	indexOf (QWidget *widget) const
bool	insertGap (const QList< int > &path, QLayoutItem *item)
bool	isValid () const
QLayoutItem *	item (const QList< int > &path)
QLayoutItem *	itemAt (int index, int *x) const
QRect	itemRect (const QList< int > &path) const
QSize	minimumSize () const
QLayoutItem *	plug (const QList< int > &path)
	QMainWindowLayoutState (QMainWindow *win)
void	remove (const QList< int > &path)
void	remove (QLayoutItem *item)
bool	restoreState (QDataStream &stream, const QMainWindowLayoutState &oldState)
void	saveState (QDataStream &stream) const
void	setCentralWidget (QWidget *widget)
QSize	sizeHint () const
QLayoutItem *	takeAt (int index, int *x)
QLayoutItem *	unplug (const QList< int > &path, QMainWindowLayoutState *savedState=0)

Public Variables
QDockAreaLayout	dockAreaLayout
QMainWindow *	mainWindow
QRect	rect
QToolBarAreaLayout	toolBarAreaLayout

Detailed Description

Definition at line 105 of file qmainwindowlayout_p.h.

Constructors and Destructors

QMainWindowLayoutState()

QMainWindowLayoutState::QMainWindowLayoutState

(

QMainWindow *

win

)

Definition at line 179 of file qmainwindowlayout.cpp.

    :
#ifndef QT_NO_TOOLBAR
    toolBarAreaLayout(win),
#endif
#ifndef QT_NO_DOCKWIDGET
    dockAreaLayout(win)
#else
    centralWidgetItem(0)
#endif

{
    mainWindow = win;
}

Functions

apply()

void QMainWindowLayoutState::apply

(

bool

animated

)

Definition at line 231 of file qmainwindowlayout.cpp.

Referenced by QMainWindowLayout::applyState().

{
#ifndef QT_NO_TOOLBAR
    toolBarAreaLayout.apply(animated);
#endif

#ifndef QT_NO_DOCKWIDGET
//    dumpLayout(dockAreaLayout, QString());
    dockAreaLayout.apply(animated);
#else
    if (centralWidgetItem != 0) {
        QMainWindowLayout *layout = qt_mainwindow_layout(mainWindow);
        Q_ASSERT(layout != 0);
        layout->widgetAnimator.animate(centralWidgetItem->widget(), centralWidgetRect, animated);
    }
#endif
}

centralWidget()

QWidget * QMainWindowLayoutState::centralWidget

(

)

const

Definition at line 390 of file qmainwindowlayout.cpp.

Referenced by QMainWindowLayout::centralWidget().

{
    QLayoutItem *item = 0;

#ifndef QT_NO_DOCKWIDGET
    item = dockAreaLayout.centralWidgetItem;
#else
    item = centralWidgetItem;
#endif

    if (item != 0)
        return item->widget();
    return 0;
}

checkFormat()

bool QMainWindowLayoutState::checkFormat	(	QDataStream &	stream,
		bool	pre43
	)

Definition at line 624 of file qmainwindowlayout.cpp.

Referenced by restoreState().

{
#ifdef QT_NO_TOOLBAR
    Q_UNUSED(pre43);
#endif
    while (!stream.atEnd()) {
        uchar marker;
        stream >> marker;
        switch(marker)
        {
#ifndef QT_NO_TOOLBAR
            case QToolBarAreaLayout::ToolBarStateMarker:
            case QToolBarAreaLayout::ToolBarStateMarkerEx:
                {
                    QList<QToolBar *> toolBars = findChildrenHelper<QToolBar*>(mainWindow);
                    if (!toolBarAreaLayout.restoreState(stream, toolBars, marker,
                        pre43 /*testing 4.3 format*/, true /*testing*/)) {
                            return false;
                    }
                }
                break;
#endif // QT_NO_TOOLBAR

#ifndef QT_NO_DOCKWIDGET
            case QDockAreaLayout::DockWidgetStateMarker:
                {
                    QList<QDockWidget *> dockWidgets = findChildrenHelper<QDockWidget*>(mainWindow);
                    if (!dockAreaLayout.restoreState(stream, dockWidgets, true /*testing*/)) {
                        return false;
                    }
                }
                break;
#endif
            default:
                //there was an error during the parsing
                return false;
        }// switch
    } //while

    //everything went fine: it must be a pre-4.3 saved state
    return true;
}

clear()

void QMainWindowLayoutState::clear

(

)

Definition at line 488 of file qmainwindowlayout.cpp.

Referenced by QMainWindowLayout::restoreState().

{
#ifndef QT_NO_TOOLBAR
    toolBarAreaLayout.clear();
#endif

#ifndef QT_NO_DOCKWIDGET
    dockAreaLayout.clear();
#else
    centralWidgetRect = QRect();
#endif

    rect = QRect();
}

contains()

bool QMainWindowLayoutState::contains

(

QWidget *

widget

)

const

Definition at line 355 of file qmainwindowlayout.cpp.

{
#ifndef QT_NO_DOCKWIDGET
    if (dockAreaLayout.centralWidgetItem != 0 && dockAreaLayout.centralWidgetItem->widget() == widget)
        return true;
    if (!dockAreaLayout.indexOf(widget).isEmpty())
        return true;
#else
    if (centralWidgetItem != 0 && centralWidgetItem->widget() == widget)
        return true;
#endif

#ifndef QT_NO_TOOLBAR
    if (!toolBarAreaLayout.indexOf(widget).isEmpty())
        return true;
#endif
    return false;
}

deleteAllLayoutItems()

void QMainWindowLayoutState::deleteAllLayoutItems

(

)

Definition at line 267 of file qmainwindowlayout.cpp.

Referenced by QMainWindowLayout::restoreState(), and QMainWindowLayout::~QMainWindowLayout().

{
#ifndef QT_NO_TOOLBAR
    toolBarAreaLayout.deleteAllLayoutItems();
#endif

#ifndef QT_NO_DOCKWIDGET
    dockAreaLayout.deleteAllLayoutItems();
#endif
}

deleteCentralWidgetItem()

void QMainWindowLayoutState::deleteCentralWidgetItem

(

)

Definition at line 278 of file qmainwindowlayout.cpp.

Referenced by setCentralWidget(), and QMainWindowLayout::~QMainWindowLayout().

{
#ifndef QT_NO_DOCKWIDGET
    delete dockAreaLayout.centralWidgetItem;
    dockAreaLayout.centralWidgetItem = 0;
#else
    delete centralWidgetItem;
    centralWidgetItem = 0;
#endif
}

fitLayout()

void QMainWindowLayoutState::fitLayout

(

)

Definition at line 249 of file qmainwindowlayout.cpp.

Referenced by QMainWindowLayout::restoreState(), and QMainWindowLayout::unplug().

{
    QRect r;
#ifdef QT_NO_TOOLBAR
    r = rect;
#else
    toolBarAreaLayout.rect = rect;
    r = toolBarAreaLayout.fitLayout();
#endif // QT_NO_TOOLBAR

#ifndef QT_NO_DOCKWIDGET
    dockAreaLayout.rect = r;
    dockAreaLayout.fitLayout();
#else
    centralWidgetRect = r;
#endif
}

gapIndex()

QList< int > QMainWindowLayoutState::gapIndex	(	QWidget *	widget,
		const QPoint &	pos
	)		const

Definition at line 405 of file qmainwindowlayout.cpp.

Referenced by QMainWindowLayout::hover().

{
    QList<int> result;

#ifndef QT_NO_TOOLBAR
    // is it a toolbar?
    if (qobject_cast<QToolBar*>(widget) != 0) {
        result = toolBarAreaLayout.gapIndex(pos);
        if (!result.isEmpty())
            result.prepend(0);
        return result;
    }
#endif

#ifndef QT_NO_DOCKWIDGET
    // is it a dock widget?
    if (qobject_cast<QDockWidget *>(widget) != 0) {
        result = dockAreaLayout.gapIndex(pos);
        if (!result.isEmpty())
            result.prepend(1);
        return result;
    }
#endif //QT_NO_DOCKWIDGET

    return result;
}

gapRect()

QRect QMainWindowLayoutState::gapRect

(

const QList< int > &

path

)

const

Definition at line 545 of file qmainwindowlayout.cpp.

{
    int i = path.first();

#ifndef QT_NO_TOOLBAR
    if (i == 0)
        return toolBarAreaLayout.itemRect(path.mid(1));
#endif

#ifndef QT_NO_DOCKWIDGET
    if (i == 1)
        return dockAreaLayout.gapRect(path.mid(1));
#endif //QT_NO_DOCKWIDGET

    return QRect();
}

indexOf()

QList< int > QMainWindowLayoutState::indexOf

(

QWidget *

widget

)

const

Definition at line 328 of file qmainwindowlayout.cpp.

Referenced by QToolBarLayout::setExpanded(), and QMainWindowLayout::unplug().

{
    QList<int> result;

#ifndef QT_NO_TOOLBAR
    // is it a toolbar?
    if (QToolBar *toolBar = qobject_cast<QToolBar*>(widget)) {
        result = toolBarAreaLayout.indexOf(toolBar);
        if (!result.isEmpty())
            result.prepend(0);
        return result;
    }
#endif

#ifndef QT_NO_DOCKWIDGET
    // is it a dock widget?
    if (QDockWidget *dockWidget = qobject_cast<QDockWidget *>(widget)) {
        result = dockAreaLayout.indexOf(dockWidget);
        if (!result.isEmpty())
            result.prepend(1);
        return result;
    }
#endif //QT_NO_DOCKWIDGET

    return result;
}

insertGap()

bool QMainWindowLayoutState::insertGap	(	const QList< int > &	path,
		QLayoutItem *	item
	)

Definition at line 433 of file qmainwindowlayout.cpp.

{
    if (path.isEmpty())
        return false;

    int i = path.first();

#ifndef QT_NO_TOOLBAR
    if (i == 0) {
        Q_ASSERT(qobject_cast<QToolBar*>(item->widget()) != 0);
        return toolBarAreaLayout.insertGap(path.mid(1), item);
    }
#endif

#ifndef QT_NO_DOCKWIDGET
    if (i == 1) {
        Q_ASSERT(qobject_cast<QDockWidget*>(item->widget()) != 0);
        return dockAreaLayout.insertGap(path.mid(1), item);
    }
#endif //QT_NO_DOCKWIDGET

    return false;
}

isValid()

bool QMainWindowLayoutState::isValid

(

)

const

Definition at line 503 of file qmainwindowlayout.cpp.

Referenced by QMainWindowLayout::hover(), and QMainWindowLayout::setCentralWidget().

{
    return rect.isValid();
}

item()

QLayoutItem * QMainWindowLayoutState::item

(

const QList< int > &

path

)

Definition at line 508 of file qmainwindowlayout.cpp.

Referenced by QMainWindowLayout::addToolBar(), insertGap(), QMainWindowLayout::insertToolBar(), setCentralWidget(), and QMainWindowLayout::unplug().

{
    int i = path.first();

#ifndef QT_NO_TOOLBAR
    if (i == 0) {
        const QToolBarAreaLayoutItem *tbItem = toolBarAreaLayout.item(path.mid(1));
        Q_ASSERT(tbItem);
        return tbItem->widgetItem;
    }
#endif

#ifndef QT_NO_DOCKWIDGET
    if (i == 1)
        return dockAreaLayout.item(path.mid(1)).widgetItem;
#endif //QT_NO_DOCKWIDGET

    return 0;
}

itemAt()

QLayoutItem * QMainWindowLayoutState::itemAt	(	int	index,
		int *	x
	)		const

Definition at line 289 of file qmainwindowlayout.cpp.

{
#ifndef QT_NO_TOOLBAR
    if (QLayoutItem *ret = toolBarAreaLayout.itemAt(x, index))
        return ret;
#endif

#ifndef QT_NO_DOCKWIDGET
    if (QLayoutItem *ret = dockAreaLayout.itemAt(x, index))
        return ret;
#else
    if (centralWidgetItem != 0 && (*x)++ == index)
        return centralWidgetItem;
#endif

    return 0;
}

itemRect()

QRect QMainWindowLayoutState::itemRect

(

const QList< int > &

path

)

const

Definition at line 528 of file qmainwindowlayout.cpp.

Referenced by QToolBarLayout::setExpanded(), and QMainWindowLayout::unplug().

{
    int i = path.first();

#ifndef QT_NO_TOOLBAR
    if (i == 0)
        return toolBarAreaLayout.itemRect(path.mid(1));
#endif

#ifndef QT_NO_DOCKWIDGET
    if (i == 1)
        return dockAreaLayout.itemRect(path.mid(1));
#endif //QT_NO_DOCKWIDGET

    return QRect();
}

minimumSize()

QSize QMainWindowLayoutState::minimumSize

(

)

const

Definition at line 213 of file qmainwindowlayout.cpp.

{
    QSize result(0, 0);

#ifndef QT_NO_DOCKWIDGET
    result = dockAreaLayout.minimumSize();
#else
    if (centralWidgetItem != 0)
        result = centralWidgetItem->minimumSize();
#endif

#ifndef QT_NO_TOOLBAR
    result = toolBarAreaLayout.minimumSize(result);
#endif // QT_NO_TOOLBAR

    return result;
}

plug()

QLayoutItem * QMainWindowLayoutState::plug

(

const QList< int > &

path

)

Definition at line 562 of file qmainwindowlayout.cpp.

{
    int i = path.first();

#ifndef QT_NO_TOOLBAR
    if (i == 0)
        return toolBarAreaLayout.plug(path.mid(1));
#endif

#ifndef QT_NO_DOCKWIDGET
    if (i == 1)
        return dockAreaLayout.plug(path.mid(1));
#endif //QT_NO_DOCKWIDGET

    return 0;
}

remove() [1/2]

void QMainWindowLayoutState::remove

(

const QList< int > &

path

)

Definition at line 457 of file qmainwindowlayout.cpp.

{
    int i = path.first();

#ifndef QT_NO_TOOLBAR
    if (i == 0)
        toolBarAreaLayout.remove(path.mid(1));
#endif

#ifndef QT_NO_DOCKWIDGET
    if (i == 1)
        dockAreaLayout.remove(path.mid(1));
#endif //QT_NO_DOCKWIDGET
}

remove() [2/2]

void QMainWindowLayoutState::remove

(

QLayoutItem *

item

)

Definition at line 472 of file qmainwindowlayout.cpp.

{
#ifndef QT_NO_TOOLBAR
    toolBarAreaLayout.remove(item);
#endif

#ifndef QT_NO_DOCKWIDGET
    // is it a dock widget?
    if (QDockWidget *dockWidget = qobject_cast<QDockWidget *>(item->widget())) {
        QList<int> path = dockAreaLayout.indexOf(dockWidget);
        if (!path.isEmpty())
            dockAreaLayout.remove(path);
    }
#endif //QT_NO_DOCKWIDGET
}

restoreState()

bool QMainWindowLayoutState::restoreState	(	QDataStream &	stream,
		const QMainWindowLayoutState &	oldState
	)

Definition at line 667 of file qmainwindowlayout.cpp.

Referenced by QMainWindowLayout::restoreState().

{
    //make a copy of the data so that we can read it more than once
    QByteArray copy;
    while(!_stream.atEnd()) {
        int length = 1024;
        QByteArray ba(length, '\0');
        length = _stream.readRawData(ba.data(), ba.size());
        ba.resize(length);
        copy += ba;
    }

    QDataStream ds(copy);
    const bool oldFormat = !checkFormat(ds, false);
    if (oldFormat) {
        //we should try with the old format
        QDataStream ds2(copy);
        if (!checkFormat(ds2, true)) {
            return false; //format unknown
        }
    }

    QDataStream stream(copy);

    while (!stream.atEnd()) {
        uchar marker;
        stream >> marker;
        switch(marker)
        {
#ifndef QT_NO_DOCKWIDGET
            case QDockAreaLayout::DockWidgetStateMarker:
                {
                    QList<QDockWidget *> dockWidgets = findChildrenHelper<QDockWidget*>(mainWindow);
                    if (!dockAreaLayout.restoreState(stream, dockWidgets))
                        return false;

                    for (int i = 0; i < dockWidgets.size(); ++i) {
                        QDockWidget *w = dockWidgets.at(i);
                        QList<int> path = dockAreaLayout.indexOf(w);
                        if (path.isEmpty()) {
                            QList<int> oldPath = oldState.dockAreaLayout.indexOf(w);
                            if (oldPath.isEmpty()) {
                                continue;
                            }
                            QDockAreaLayoutInfo *info = dockAreaLayout.info(oldPath);
                            if (info == 0) {
                                continue;
                            }
                            info->item_list.append(QDockAreaLayoutItem(new QDockWidgetItem(w)));
                        }
                    }
                }
                break;
#endif // QT_NO_DOCKWIDGET

#ifndef QT_NO_TOOLBAR
            case QToolBarAreaLayout::ToolBarStateMarker:
            case QToolBarAreaLayout::ToolBarStateMarkerEx:
                {
                    QList<QToolBar *> toolBars = findChildrenHelper<QToolBar*>(mainWindow);
                    if (!toolBarAreaLayout.restoreState(stream, toolBars, marker, oldFormat))
                        return false;

                    for (int i = 0; i < toolBars.size(); ++i) {
                        QToolBar *w = toolBars.at(i);
                        QList<int> path = toolBarAreaLayout.indexOf(w);
                        if (path.isEmpty()) {
                            QList<int> oldPath = oldState.toolBarAreaLayout.indexOf(w);
                            if (oldPath.isEmpty()) {
                                continue;
                            }
                            toolBarAreaLayout.docks[oldPath.at(0)].insertToolBar(0, w);
                        }
                    }
                }
                break;
#endif //QT_NO_TOOLBAR
            default:
                return false;
        }// switch
    } //while


    return true;
}

saveState()

void QMainWindowLayoutState::saveState

(

QDataStream &

stream

)

const

Definition at line 598 of file qmainwindowlayout.cpp.

Referenced by QMainWindowLayout::saveState().

{
#ifndef QT_NO_DOCKWIDGET
    dockAreaLayout.saveState(stream);
#endif
#ifndef QT_NO_TOOLBAR
    toolBarAreaLayout.saveState(stream);
#endif
}

setCentralWidget()

void QMainWindowLayoutState::setCentralWidget

(

QWidget *

widget

)

Definition at line 374 of file qmainwindowlayout.cpp.

Referenced by QMainWindowLayout::setCentralWidget().

{
    QLayoutItem *item = 0;
    //make sure we remove the widget
    deleteCentralWidgetItem();

    if (widget != 0)
        item = new QWidgetItemV2(widget);

#ifndef QT_NO_DOCKWIDGET
    dockAreaLayout.centralWidgetItem = item;
#else
    centralWidgetItem = item;
#endif
}

sizeHint()

QSize QMainWindowLayoutState::sizeHint

(

)

const

Definition at line 194 of file qmainwindowlayout.cpp.

{

    QSize result(0, 0);

#ifndef QT_NO_DOCKWIDGET
    result = dockAreaLayout.sizeHint();
#else
    if (centralWidgetItem != 0)
        result = centralWidgetItem->sizeHint();
#endif

#ifndef QT_NO_TOOLBAR
    result = toolBarAreaLayout.sizeHint(result);
#endif // QT_NO_TOOLBAR

    return result;
}

takeAt()

QLayoutItem * QMainWindowLayoutState::takeAt	(	int	index,
		int *	x
	)

Definition at line 307 of file qmainwindowlayout.cpp.

{
#ifndef QT_NO_TOOLBAR
    if (QLayoutItem *ret = toolBarAreaLayout.takeAt(x, index))
        return ret;
#endif

#ifndef QT_NO_DOCKWIDGET
    if (QLayoutItem *ret = dockAreaLayout.takeAt(x, index))
        return ret;
#else
    if (centralWidgetItem != 0 && (*x)++ == index) {
        QLayoutItem *ret = centralWidgetItem;
        centralWidgetItem = 0;
        return ret;
    }
#endif

    return 0;
}

unplug()

QLayoutItem * QMainWindowLayoutState::unplug	(	const QList< int > &	path,
		QMainWindowLayoutState *	savedState = 0
	)

Definition at line 579 of file qmainwindowlayout.cpp.

Referenced by QMainWindowLayout::unplug().

{
    int i = path.first();

#ifdef QT_NO_TOOLBAR
    Q_UNUSED(other);
#else
    if (i == 0)
        return toolBarAreaLayout.unplug(path.mid(1), other ? &other->toolBarAreaLayout : 0);
#endif

#ifndef QT_NO_DOCKWIDGET
    if (i == 1)
        return dockAreaLayout.unplug(path.mid(1));
#endif //QT_NO_DOCKWIDGET

    return 0;
}

Properties

dockAreaLayout

QDockAreaLayout QMainWindowLayoutState::dockAreaLayout

Definition at line 118 of file qmainwindowlayout_p.h.

Referenced by apply(), QMainWindowLayout::applyState(), centralWidget(), checkFormat(), clear(), contains(), deleteAllLayoutItems(), deleteCentralWidgetItem(), fitLayout(), gapIndex(), gapRect(), QMainWindowLayout::hover(), indexOf(), insertGap(), item(), itemAt(), itemRect(), minimumSize(), plug(), remove(), restoreState(), saveState(), setCentralWidget(), QMainWindowLayout::setCentralWidget(), sizeHint(), takeAt(), QMainWindowLayout::timerEvent(), and unplug().

mainWindow

QMainWindow* QMainWindowLayoutState::mainWindow

Definition at line 109 of file qmainwindowlayout_p.h.

Referenced by apply(), checkFormat(), QMainWindowLayoutState(), restoreState(), and QMainWindowLayout::usesHIToolBar().

rect

QRect QMainWindowLayoutState::rect

Definition at line 108 of file qmainwindowlayout_p.h.

Referenced by clear(), fitLayout(), isValid(), and QMainWindowLayout::restoreState().

toolBarAreaLayout

QToolBarAreaLayout QMainWindowLayoutState::toolBarAreaLayout

Definition at line 114 of file qmainwindowlayout_p.h.

Referenced by apply(), checkFormat(), clear(), contains(), deleteAllLayoutItems(), fitLayout(), gapIndex(), gapRect(), indexOf(), insertGap(), item(), itemAt(), itemRect(), minimumSize(), plug(), remove(), restoreState(), saveState(), QToolBarLayout::setExpanded(), sizeHint(), takeAt(), unplug(), and QToolBar::~QToolBar().

---

The documentation for this class was generated from the following files:

• /src/gui/widgets/qmainwindowlayout_p.h
• /src/gui/widgets/qmainwindowlayout.cpp