formwindow.cpp

Linux下的基于X11的图形开发环境。

    if ( t == Rubber )
	unclippedPainter->setPen( QPen( color0, 1 ) );
    if ( t == Insert )
	rectAnchor = gridPoint( pos );
    else if ( t == Rubber )
	rectAnchor = pos;
    currRect = QRect( rectAnchor, QPoint( 0, 0 ) );
    if ( t == Insert )
	drawSizePreview( pos, tr("Use Size Hint") );
}

void FormWindow::continueRectDraw( const QPoint &p, const QPoint &global, QWidget *, RectType t )
{
    QPoint pos =p;
    pos = mapFromGlobal( global );
    QPoint p2;
    if ( t == Insert )
	p2 = gridPoint( pos );
    else if ( t == Rubber )
	p2 = pos;
    QRect r( rectAnchor, p2 );
    r = r.normalize();

    if ( currRect == r ) {
	QString t = tr( "%1/%2" );
	t = t.arg( r.width() - 1 ).arg( r.height() - 1 );
	drawSizePreview( pos, t );
	return;
    }

    if ( oldRectValid )
	unclippedPainter->drawRect( currRect );
    if ( r.width() > 1 || r.height() > 1 ) {
	oldRectValid = TRUE;
	currRect = r;
	if ( t == Insert ) {
	    QString t = tr( "%1/%2" );
	    t = t.arg( r.width() - 1 ).arg( r.height() - 1 );
	    drawSizePreview( pos, t );
	}
	unclippedPainter->setClipRegion( QRegion( rect() ).subtract( QRect( sizePreviewPos, sizePreviewPixmap.size() ) ) );
	unclippedPainter->drawRect( currRect );
	unclippedPainter->setClipping( FALSE );
    } else {
	oldRectValid = FALSE;
	if ( t == Insert )
	    drawSizePreview( pos, tr("Use Size Hint") );
    }
}

void FormWindow::endRectDraw()
{
    if ( !unclippedPainter )
	return;

    if ( oldRectValid )
	unclippedPainter->drawRect( currRect );
    drawSizePreview( QPoint(-1,-1), QString::null );
    endUnclippedPainter();
}

void FormWindow::selectWidgets()
{
    QObjectList *l = mainContainer()->queryList( "QWidget" );
    if ( l ) {
	for ( QObject *o = l->first(); o; o = l->next() ) {
	    if ( ( (QWidget*)o )->isVisibleTo( this ) &&
		 insertedWidgets[ (void*)o ] ) {
		QPoint p = ( (QWidget*)o )->mapToGlobal( QPoint(0,0) );
		p = mapFromGlobal( p );
		QRect r( p, ( (QWidget*)o )->size() );
		if ( r.intersects( currRect ) && !r.contains( currRect ) )
		    selectWidget( (QWidget*)o );
	    }
	}
	delete l;
    }
    emitSelectionChanged();
}

bool FormWindow::isWidgetSelected( QObject *w )
{
    if ( w->isWidgetType() )
	return usedSelections.find( (QWidget*)w ) != 0;
    return FALSE; // #### do stuff for QObjects
}

void FormWindow::moveSelectedWidgets( int dx, int dy )
{
    QPtrDictIterator<WidgetSelection> it( usedSelections );
    for ( ; it.current(); ++it ) {
	WidgetSelection *s = it.current();
	QWidget *w = s->widget();
	if ( w->parentWidget() && WidgetFactory::layoutType( w->parentWidget() ) != WidgetFactory::NoLayout )
	    continue;
	w->move( w->x() + dx, w->y() + dy );
	s->updateGeometry();
	updateChildSelections( w );
    }
}

CommandHistory *FormWindow::commandHistory()
{
    return &commands;
}

void FormWindow::undo()
{
    commandHistory()->undo();
}

void FormWindow::redo()
{
    commandHistory()->redo();
}

void FormWindow::raiseChildSelections( QWidget *w )
{
    QObjectList *l = w->queryList( "QWidget" );
    if ( !l || !l->first() ) {
	delete l;
	return;
    }

    QPtrDictIterator<WidgetSelection> it( usedSelections );
    for ( ; it.current(); ++it ) {
	if ( l->findRef( it.current()->widget() ) != -1 )
	    it.current()->show();
    }
    delete l;
}

void FormWindow::updateChildSelections( QWidget *w )
{
    QObjectList *l = w->queryList( "QWidget" );
    if ( l ) {
	for ( QObject *o = l->first(); o; o = l->next() ) {
	    if ( o->isWidgetType() &&
		 insertedWidgets.find( (QWidget*)o ) )
		updateSelection( (QWidget*)o );
	}
	delete l;
    }
}

void FormWindow::checkSelectionsForMove( QWidget *w )
{
    checkedSelectionsForMove = TRUE;

    QObjectList *l = w->parentWidget()->queryList( "QWidget", 0, FALSE, FALSE );
    moving.clear();
    if ( l ) {
	QPtrDictIterator<WidgetSelection> it( usedSelections );
	WidgetSelection *sel;
	while ( ( sel = it.current() ) != 0 ) {
	    if ( it.current()->widget() == mainContainer() )
		continue;
	    ++it;
	    if ( l->find( sel->widget() ) == -1 ) {
		if ( WidgetFactory::layoutType( w ) == WidgetFactory::NoLayout )
		    sel->setWidget( 0 );
	    } else {
		if ( WidgetFactory::layoutType( sel->widget()->parentWidget() ) == WidgetFactory::NoLayout ) {
		    moving.insert( (ulong)sel->widget(), sel->widget()->pos() );
		    sel->widget()->raise();
		    raiseChildSelections( sel->widget() );
		    raiseSelection( sel->widget() );
		}
	    }
	}
	delete l;
    }
}

void FormWindow::deleteWidgets()
{
    CHECK_MAINWINDOW;
    QWidgetList widgets;
    QPtrDictIterator<WidgetSelection> it( usedSelections );
    for ( ; it.current(); ++it ) {
	QWidget *tb = 0;
	if ( !( tb = mainWindow()->isAToolBarChild( it.current()->widget() ) ) )
	     widgets.append( it.current()->widget() );
	else
	    ( (QDesignerToolBar*)tb )->removeWidget( it.current()->widget() );
    }

    if ( widgets.isEmpty() )
	return;

    DeleteCommand *cmd = new DeleteCommand( tr( "Delete" ), this, widgets );
    commandHistory()->addCommand( cmd );
    cmd->execute();
}

void FormWindow::editAdjustSize()
{
    QPtrList<Command> commands;
    QWidgetList widgets = selectedWidgets();
    if ( widgets.isEmpty() ) {
	QRect oldr = geometry();
	mainContainer()->adjustSize();
	resize( mainContainer()->size() );
	// check whether our own size constraint hit us
	if ( size() != mainContainer()->size() )
	    mainContainer()->resize( size() );
	QRect nr = geometry();
	if ( oldr != nr ) {
	    ResizeCommand *cmd = new ResizeCommand( tr( "Adjust Size" ), this, this, oldr, nr );
	    commandHistory()->addCommand( cmd );
	}
	return;
    }
    for ( QWidget* w = widgets.first(); w; w = widgets.next() ) {
	if ( w->parentWidget() && WidgetFactory::layoutType( w->parentWidget() ) != WidgetFactory::NoLayout )
	    continue;
	QRect oldr = w->geometry();
	w->adjustSize();
	QRect nr = w->geometry();
	if ( oldr != nr )
	    commands.append( new ResizeCommand( tr("Adjust Size"), this, w, oldr, nr ) );
    }

    if ( commands.isEmpty() )
	return;
    for ( WidgetSelection *s = selections.first(); s; s = selections.next() )
	s->updateGeometry();

    MacroCommand *cmd = new MacroCommand( tr( "Adjust Size" ), this, commands );
    commandHistory()->addCommand( cmd );
}


QWidgetList FormWindow::selectedWidgets() const
{
    QWidgetList widgets;
    QPtrDictIterator<WidgetSelection> it( usedSelections );
    for ( ; it.current(); ++it )
	widgets.append( it.current()->widget() );
    return widgets;
}

void FormWindow::widgetChanged( QObject *w )
{
    if ( w->isWidgetType() )
	updateSelection( (QWidget*)w );
    // ########## do QObject stuff
}

QLabel *FormWindow::sizePreview() const
{
    if ( !sizePreviewLabel ) {
	( (FormWindow*)this )->sizePreviewLabel = new QLabel( (FormWindow*)this );
	( (FormWindow*)this )->sizePreviewLabel->hide();
	( (FormWindow*)this )->sizePreviewLabel->setBackgroundColor( QColor( 255, 255, 128 ) );
	( (FormWindow*)this )->sizePreviewLabel->setFrameStyle( QFrame::Plain | QFrame::Box );
    }
    return sizePreviewLabel;
}

void FormWindow::invalidCheckedSelections()
{
    checkedSelectionsForMove = FALSE;
}

void FormWindow::checkPreviewGeometry( QRect &r )
{
    if ( !rect().contains( r ) ) {
	if ( r.left() < rect().left() )
	    r.moveTopLeft( QPoint( 0, r.top() ) );
	if ( r.right() > rect().right()  )
	    r.moveBottomRight( QPoint( rect().right(), r.bottom() ) );
	if ( r.top() < rect().top() )
	    r.moveTopLeft( QPoint( r.left(), rect().top() ) );
	if ( r.bottom() > rect().bottom()  )
	    r.moveBottomRight( QPoint( r.right(), rect().bottom() ) );
    }
}

void FormWindow::focusInEvent( QFocusEvent * )
{
}

void FormWindow::focusOutEvent( QFocusEvent * )
{
    if ( propertyWidget && !isMainContainer( propertyWidget ) && !isWidgetSelected( propertyWidget ) ) {
	QObject *opw = propertyWidget;
	propertyWidget = mainContainer();
	if ( opw->isWidgetType() )
	    repaintSelection( (QWidget*)opw );
    }
}

void FormWindow::resizeEvent( QResizeEvent *e )
{
    QWidget::resizeEvent( e );
    if ( currTool == ORDER_TOOL )
	repositionOrderIndicators();
    if ( isVisible() )
	formFile()->setModified( TRUE, FormFile::WFormWindow );

#if defined(Q_WS_WIN32)
    windowsRepaintWorkaroundTimer->start( 100, TRUE );
#endif
}

void FormWindow::windowsRepaintWorkaroundTimerTimeout()
{
#if defined(Q_WS_WIN32)
    QObjectList *l = queryList( "QWidget" );
    for ( QObject *o = l->first(); o; o = l->next() ) {
	flickerfree_update( (QWidget*)o );
    }
    flickerfree_update( this );
    delete l;
#endif
}

QPtrDict<QWidget> *FormWindow::widgets()
{
    return &insertedWidgets;
}

QWidget *FormWindow::designerWidget( QObject *o ) const
{
    if ( !o || !o->isWidgetType() )
	return 0;
    QWidget *w = (QWidget*)o;
    while ( w && !isMainContainer( w ) && !insertedWidgets[ (void*)w ] || isCentralWidget( w ) )
	w = (QWidget*)w->parent();
    return w;
}

void FormWindow::emitShowProperties( QObject *w )
{
    if ( w ) {
	QObject *opw = propertyWidget;
	propertyWidget = w;
	if ( opw->isWidgetType() )
	    repaintSelection( (QWidget*)opw );
    }
    showPropertiesTimer->stop();
    showPropertiesTimer->start( 0, TRUE );
}

void FormWindow::emitUpdateProperties( QObject *w )
{
    if ( w == propertyWidget ) {
	updatePropertiesTimer->stop();
	updatePropertiesTimer->start( 0, TRUE );
    }
}

void FormWindow::emitSelectionChanged()
{
    selectionChangedTimer->stop();
    selectionChangedTimer->start( 0, TRUE );
}

void FormWindow::updatePropertiesTimerDone()
{
    CHECK_MAINWINDOW;
    if ( propertyWidget && mainWindow()->formWindow() == this )
	emit updateProperties( propertyWidget );
}

void FormWindow::showPropertiesTimerDone()
{
    CHECK_MAINWINDOW;
    if ( propertyWidget && mainWindow()->formWindow() == this )
	emit showProperties( propertyWidget );
}

void FormWindow::selectionChangedTimerDone()
{
    emit selectionChanged();
}

void FormWindow::currentToolChanged()
{
    CHECK_MAINWINDOW;
    toolFixed = FALSE;
    int t = mainwindow->currentTool();
    if ( currTool == t && t != ORDER_TOOL )
	return;

    // tool cleanup
    switch ( currTool ) {
    case ORDER_TOOL:
	hideOrderIndicators();
	break;
    case CONNECT_TOOL:
    case BUDDY_TOOL:
	restoreConnectionLine();
	if ( startWidget )
	    restoreRect( QRect( mapToForm( ( (QWidget*)startWidget )->parentWidget(),
					   ( (QWidget*)startWidget )->pos() ),
				( (QWidget*)startWidget )->size() ) );
	if ( endWidget )
	    restoreRect( QRect( mapToForm( ( (QWidget*)endWidget )->parentWidget(),
					   ( (QWidget*)endWidget )->pos() ),
				( (QWidget*)endWidget )->size() ) );
	endUnclippedPainter();
	break;
    case POINTER_TOOL:
	break;
    default:
	if ( insertParent )
	    endRectDraw();
	break;
    }

    startWidget = endWidget = 0;
    widgetPressed = FALSE;
    drawRubber = FALSE;
    insertParent = 0;
    delete buffer;
    buffer = 0;

    currTool = t;

    if ( hasFocus() )
	clearSelection( FALSE );

    mainWindow()->statusBar()->clear();

    // tool setup
    switch ( currTool ) {