C++ QPtrList::findRef方法代码示例

void DockContainer::nextToolView()
{
    QPtrList< KMultiTabBarTab > *tabs = m_tb->tabs();
    int pos = tabs->findRef(m_tb->tab(oldtab));
    if(pos == -1)
        return;
    pos++;
    if(pos >= (int)tabs->count())
        pos = 0;
    KMultiTabBarTab *tab = tabs->at(pos);
    if(!tab)
        return; // can never happen here, but who knows
    m_tb->setTab(tab->id(), true);
    tabClicked(tab->id());
}

void KMdiDockContainer::prevToolView()
{
	kdDebug( 760 ) << k_funcinfo << endl;
	QPtrList<KMultiTabBarTab>* tabs = m_tb->tabs();
	int pos = tabs->findRef( m_tb->tab( oldtab ) );

	if ( pos == -1 )
		return ;

	pos--;
	if ( pos < 0 )
		pos = tabs->count() - 1;

	KMultiTabBarTab *tab = tabs->at( pos );
	if ( !tab )
		return ; //can never happen here, but who knows

	m_tb->setTab( tab->id(), true );
	tabClicked( tab->id() );
}

QDockArea::DockWindowData *QDockArea::dockWindowData( QDockWindow *w )
{
    DockWindowData *data = new DockWindowData;
    data->index = findDockWindow( w );
    if ( data->index == -1 ) {
	delete data;
	return 0;
    }
    QPtrList<QDockWindow> lineStarts = layout->lineStarts();
    int i = -1;
    for ( QDockWindow *dw = dockWindows->first(); dw; dw = dockWindows->next() ) {
	if ( lineStarts.findRef( dw ) != -1 )
	    ++i;
	if ( dw == w )
	    break;
    }
    data->line = i;
    data->offset = point_pos( QPoint( fix_x(w), w->y() ), orientation() );
    data->area = this;
    data->fixedExtent = w->fixedExtent();
    return data;
}

void QDockArea::removeDockWindow( QDockWindow *w, bool makeFloating, bool swap, bool fixNewLines )
{
    w->removeEventFilter( this );
    QDockWindow *dockWindow = 0;
    int i = findDockWindow( w );
    if ( i == -1 )
	return;
    dockWindow = dockWindows->at( i );
    dockWindows->remove( i );
    QPtrList<QDockWindow> lineStarts = layout->lineStarts();
    if ( fixNewLines && lineStarts.findRef( dockWindow ) != -1 && i < (int)dockWindows->count() )
	dockWindows->at( i )->setNewLine( TRUE );
    if ( makeFloating ) {
	QWidget *p = parentWidget() ? parentWidget() : topLevelWidget();
	dockWindow->reparent( p, WType_Dialog | WStyle_Customize | WStyle_NoBorder | WStyle_Tool, QPoint( 0, 0 ), FALSE );
    }
    if ( swap )
	dockWindow->resize( dockWindow->height(), dockWindow->width() );
    updateLayout();
    if ( dockWindows->isEmpty() )
	setSizePolicy( QSizePolicy( QSizePolicy::Preferred, QSizePolicy::Preferred ) );
}

void KTabBar::setTabEnabled( int id, bool enabled )
{
    QTab * t = tab( id );
    if ( t ) {
        if ( t->isEnabled() != enabled ) {
            t->setEnabled( enabled );
            QRect r( t->rect() );
            if ( !enabled && id == currentTab() && count()>1 ) {
                int index = indexOf( id );
                index += ( index+1 == count() ) ? -1 : 1;
                t = tabAt( index );

                if ( t->isEnabled() ) {
                    r = r.unite( t->rect() );
                    QPtrList<QTab> *tablist = tabList();
                    tablist->append( tablist->take( tablist->findRef( t ) ) );
                    emit selected( t->identifier() );
                }
            }
            repaint( r );
        }
    }
}

void QDockArea::moveDockWindow( QDockWindow *w, const QPoint &p, const QRect &r, bool swap )
{
    invalidateFixedSizes();
    int mse = -10;
    bool hasResizable = FALSE;
    for ( QDockWindow *dw = dockWindows->first(); dw; dw = dockWindows->next() ) {
	if ( dw->isHidden() )
	    continue;
	if ( dw->isResizeEnabled() )
	    hasResizable = TRUE;
	if ( orientation() != Qt::Horizontal )
	    mse = QMAX( QMAX( dw->fixedExtent().width(), dw->width() ), mse );
	else
	    mse = QMAX( QMAX( dw->fixedExtent().height(), dw->height() ), mse );
    }
    if ( !hasResizable && w->isResizeEnabled() ) {
	if ( orientation() != Qt::Horizontal )
	    mse = QMAX( w->fixedExtent().width(), mse );
	else
	    mse = QMAX( w->fixedExtent().height(), mse );
    }

    QDockWindow *dockWindow = 0;
    int dockWindowIndex = findDockWindow( w );
    QPtrList<QDockWindow> lineStarts = layout->lineStarts();
    QValueList<QRect> lines = layout->lineList();
    bool wasAloneInLine = FALSE;
    QPoint pos = mapFromGlobal( p );
    QRect lr = *lines.at( lineOf( dockWindowIndex ) );
    if ( dockWindowIndex != -1 ) {
	if ( lineStarts.find( w ) != -1 &&
	     ( dockWindowIndex < (int)dockWindows->count() - 1 && lineStarts.find( dockWindows->at( dockWindowIndex + 1 ) ) != -1 ||
	       dockWindowIndex == (int)dockWindows->count() - 1 ) )
	    wasAloneInLine = TRUE;
	dockWindow = dockWindows->take( dockWindowIndex );
	if ( !wasAloneInLine ) { // only do the pre-layout if the widget isn't the only one in its line
	    if ( lineStarts.findRef( dockWindow ) != -1 && dockWindowIndex < (int)dockWindows->count() )
		dockWindows->at( dockWindowIndex )->setNewLine( TRUE );
	    layout->layoutItems( QRect( 0, 0, width(), height() ), TRUE );
	}
    } else {
	dockWindow = w;
	dockWindow->reparent( this, QPoint( 0, 0 ), TRUE );
	if ( swap )
	    dockWindow->resize( dockWindow->height(), dockWindow->width() );
	w->installEventFilter( this );
    }

    lineStarts = layout->lineStarts();
    lines = layout->lineList();

    QRect rect = QRect( mapFromGlobal( r.topLeft() ), r.size() );
    if ( orientation() == Horizontal && QApplication::reverseLayout() ) {
	rect = QRect( width() - rect.x() - rect.width(), rect.y(), rect.width(), rect.height() );
	pos.rx() = width() - pos.x();
    }
    dockWindow->setOffset( point_pos( rect.topLeft(), orientation() ) );
    if ( orientation() == Horizontal ) {
	int offs = dockWindow->offset();
	if ( width() - offs < dockWindow->minimumWidth() )
	    dockWindow->setOffset( width() - dockWindow->minimumWidth() );
    } else {
	int offs = dockWindow->offset();
	if ( height() - offs < dockWindow->minimumHeight() )
	    dockWindow->setOffset( height() - dockWindow->minimumHeight() );
    }

    if ( dockWindows->isEmpty() ) {
	dockWindows->append( dockWindow );
    } else {
	int dockLine = -1;
	bool insertLine = FALSE;
	int i = 0;
	QRect lineRect;
	// find the line which we touched with the mouse
	for ( QValueList<QRect>::Iterator it = lines.begin(); it != lines.end(); ++it, ++i ) {
	    if ( point_pos( pos, orientation(), TRUE ) >= point_pos( (*it).topLeft(), orientation(), TRUE ) &&
		 point_pos( pos, orientation(), TRUE ) <= point_pos( (*it).topLeft(), orientation(), TRUE ) +
		 size_extent( (*it).size(), orientation(), TRUE ) ) {
		dockLine = i;
		lineRect = *it;
		break;
	    }
	}
	if ( dockLine == -1 ) { // outside the dock...
	    insertLine = TRUE;
	    if ( point_pos( pos, orientation(), TRUE ) < 0 ) // insert as first line
		dockLine = 0;
	    else
		dockLine = (int)lines.count(); // insert after the last line ### size_t/int cast
	} else { // inside the dock (we have found a dockLine)
	    if ( point_pos( pos, orientation(), TRUE ) <
		 point_pos( lineRect.topLeft(), orientation(), TRUE ) + 4 ) {	// mouse was at the very beginning of the line
		insertLine = TRUE;					// insert a new line before that with the docking widget
	    } else if ( point_pos( pos, orientation(), TRUE ) >
			point_pos( lineRect.topLeft(), orientation(), TRUE ) +
			size_extent( lineRect.size(), orientation(), TRUE ) - 4 ) {	// mouse was at the very and of the line
		insertLine = TRUE;						// insert a line after that with the docking widget
		dockLine++;
	    }
//.........这里部分代码省略.........