C++ KoSelection类代码示例

void KarbonView::dropEvent( QDropEvent *e )
{
    debugView("KarbonView::dropEvent()");

    //Accepts QColor - from Color Manager's KColorPatch
    QColor color = KColorMimeData::fromMimeData( e->mimeData() );
    if ( color.isValid() )
    {
        KoSelection * selection = d->canvas->shapeManager()->selection();
        if( ! selection )
            return;

        if( ! part() )
            return;

        if( d->canvas->resourceProvider()->intResource( Karbon::ActiveStyle ) == Karbon::Foreground )
        {
            QList<KoShapeBorderModel*> borders;
            QList<KoShape*> selectedShapes = selection->selectedShapes();
            foreach( KoShape * shape, selectedShapes )
            {
                KoLineBorder * border = dynamic_cast<KoLineBorder*>( shape->border() );
                KoLineBorder * newBorder = 0;
                if( border )
                {
                    newBorder = new KoLineBorder( *border );
                    newBorder->setColor( color );
                }
                else
                {
                    newBorder = new KoLineBorder( 1.0, color );
                }
                borders.append( newBorder );
            }

void KarbonCalligraphyTool::updateSelectedPath()
{
    KoPathShape *oldSelectedPath = m_selectedPath; // save old value

    KoSelection *selection = canvas()->shapeManager()->selection();

    // null pointer if it the selection isn't a KoPathShape
    // or if the selection is empty
    m_selectedPath =
        dynamic_cast<KoPathShape *>(selection->firstSelectedShape());

    // or if it's a KoPathShape but with no or more than one subpaths
    if (m_selectedPath && m_selectedPath->subpathCount() != 1) {
        m_selectedPath = 0;
    }

    // or if there ora none or more than 1 shapes selected
    if (selection->count() != 1) {
        m_selectedPath = 0;
    }

    // emit signal it there wasn't a selected path and now there is
    // or the other way around
    if ((m_selectedPath != 0) != (oldSelectedPath != 0)) {
        emit pathSelectedChanged(m_selectedPath != 0);
    }
}

void KoCreatePathTool::addPathShape(KoPathShape *pathShape)
{
    Q_D(KoCreatePathTool);

    KoPathShape *startShape = 0;
    KoPathShape *endShape = 0;
    pathShape->normalize();

    // check if existing start/end points are still valid
    d->existingStartPoint.validate(canvas());
    d->existingEndPoint.validate(canvas());

    pathShape->setStroke(createStroke());
    if (d->connectPaths(pathShape, d->existingStartPoint, d->existingEndPoint)) {
        if (d->existingStartPoint.isValid())
            startShape = d->existingStartPoint.path;
        if (d->existingEndPoint.isValid() && d->existingEndPoint != d->existingStartPoint)
            endShape = d->existingEndPoint.path;
    }

    KUndo2Command *cmd = canvas()->shapeController()->addShape(pathShape);
    if (cmd) {
        KoSelection *selection = canvas()->shapeManager()->selection();
        selection->deselectAll();
        selection->select(pathShape);
        if (startShape)
            canvas()->shapeController()->removeShape(startShape, cmd);
        if (endShape && startShape != endShape)
            canvas()->shapeController()->removeShape(endShape, cmd);
        canvas()->addCommand(cmd);
    } else {
        canvas()->updateCanvas(pathShape->boundingRect());
        delete pathShape;
    }
}

void KPrViewModeNotes::updateActivePage( KoPAPageBase *page )
{
    if ( m_view->activePage() != page ) {
        m_view->setActivePage( page );
    }

    KPrPage *prPage = dynamic_cast<KPrPage *>( page );
    if ( !prPage ) return;

    KPrNotes *notes = prPage->pageNotes();
    notes->updatePageThumbnail();
    KoShapeLayer* layer = dynamic_cast<KoShapeLayer*>( notes->childShapes().last() );

    KoPageLayout &layout = notes->pageLayout();
    QSize size(layout.width, layout.height);
    
    m_view->horizontalRuler()->setRulerLength(layout.width);
    m_view->verticalRuler()->setRulerLength(layout.height);
    m_view->horizontalRuler()->setActiveRange(layout.left, layout.width - layout.right);
    m_view->verticalRuler()->setActiveRange(layout.top, layout.height - layout.bottom);

    m_view->zoomController()->setPageSize(size);
    m_view->zoomController()->setDocumentSize(size);
    m_canvas->update();

    m_canvas->shapeManager()->setShapes( layer->childShapes() );
    m_canvas->masterShapeManager()->setShapes(QList<KoShape*>());

    KoSelection *selection = m_canvas->shapeManager()->selection();
    selection->select(notes->textShape());
    selection->setActiveLayer( layer );
    QString tool = KoToolManager::instance()->preferredToolForSelection(selection->selectedShapes());
    KoToolManager::instance()->switchToolRequested(tool);
}

void RoundCornersPlugin::slotRoundCorners()
{
    KoCanvasController* canvasController = KoToolManager::instance()->activeCanvasController();
    KoSelection *selection = canvasController->canvas()->shapeManager()->selection();
    KoShape * shape = selection->firstSelectedShape();
    if (! shape)
        return;

    // check if we have a path based shape
    KoPathShape * path = dynamic_cast<KoPathShape*>(shape);
    if (! path)
        return;

    m_roundCornersDlg->setUnit(canvasController->canvas()->unit());
    if (QDialog::Rejected == m_roundCornersDlg->exec())
        return;

    KUndo2Command * cmd = new KUndo2Command(kundo2_i18n("Round Corners"));

    // convert to path before if we have a parametric shape
    KoParameterShape * ps = dynamic_cast<KoParameterShape*>(shape);
    if (ps && ps->isParametricShape())
        new KoParameterToPathCommand(ps, cmd);

    new RoundCornersCommand(path, m_roundCornersDlg->radius(), cmd);
    canvasController->canvas()->addCommand(cmd);
}

KUndo2Command* KoCreateShapeStrategy::createCommand()
{
    Q_D(KoShapeRubberSelectStrategy);
    KoCreateShapesTool *parent = static_cast<KoCreateShapesTool*>(d_ptr->tool);
    KoShapeFactoryBase *factory = KoShapeRegistry::instance()->value(parent->shapeId());
    if (! factory) {
        warnFlake << "Application requested a shape that is not registered" << parent->shapeId();
        return 0;
    }

    const KoProperties *props = parent->shapeProperties();
    KoShape *shape;
    if (props)
        shape = factory->createShape(props, parent->canvas()->shapeController()->resourceManager());
    else
        shape = factory->createDefaultShape(parent->canvas()->shapeController()->resourceManager());
    if (shape->shapeId().isEmpty())
        shape->setShapeId(factory->id());
    QRectF rect = d->selectedRect();
    shape->setPosition(rect.topLeft());
    QSizeF newSize = rect.size();
    // if the user has dragged when creating the shape,
    // resize the shape to the dragged size
    if (newSize.width() > 1.0 && newSize.height() > 1.0)
        shape->setSize(newSize);

    KUndo2Command * cmd = parent->canvas()->shapeController()->addShape(shape);
    if (cmd) {
        KoSelection *selection = parent->canvas()->shapeManager()->selection();
        selection->deselectAll();
        selection->select(shape);
    }
    return cmd;
}

QUndoCommand* KoCreateShapeStrategy::createCommand()
{
    KoCreateShapesTool *parent = static_cast<KoCreateShapesTool*>(m_parent);
    KoShapeFactory *factory = KoShapeRegistry::instance()->value(parent->shapeId());
    if (! factory) {
        kWarning(30006) << "Application requested a shape that is not registered" << parent->shapeId();
        return 0;
    }

    const KoProperties *props = parent->shapeProperties();
    KoShape *shape;
    if (props)
        shape = factory->createShapeAndInit(props, parent->m_canvas->shapeController()->dataCenterMap());
    else
        shape = factory->createDefaultShapeAndInit(parent->m_canvas->shapeController()->dataCenterMap());
    if (shape->shapeId().isEmpty())
        shape->setShapeId(factory->id());
    QRectF rect = selectRect();
    shape->setPosition(rect.topLeft());
    QSizeF newSize = rect.size();
    // if the user has dragged when creating the shape,
    // resize the shape to the dragged size
    if (newSize.width() > 1.0 && newSize.height() > 1.0)
        shape->setSize(newSize);

    QUndoCommand * cmd = parent->m_canvas->shapeController()->addShape(shape);
    if (cmd) {
        KoSelection *selection = parent->m_canvas->shapeManager()->selection();
        selection->deselectAll();
        selection->select(shape);
    }
    return cmd;
}

void WhirlPinchPlugin::slotWhirlPinch()
{
    KoCanvasController* canvasController = KoToolManager::instance()->activeCanvasController();
    KoSelection *selection = canvasController->canvas()->shapeManager()->selection();
    KoShape * shape = selection->firstSelectedShape();
    if (! shape)
        return;

    // check if we have a path based shape
    KoPathShape * path = dynamic_cast<KoPathShape*>(shape);
    if (! path)
        return;

    // check if it is no parametric shape
    KoParameterShape * ps = dynamic_cast<KoParameterShape*>(shape);
    if (ps && ps->isParametricShape())
        return;

    m_whirlPinchDlg->setUnit(canvasController->canvas()->unit());

    if (QDialog::Rejected == m_whirlPinchDlg->exec())
        return;

    canvasController->canvas()->addCommand(
        new KarbonWhirlPinchCommand(path, m_whirlPinchDlg->angle(), m_whirlPinchDlg->pinch(), m_whirlPinchDlg->radius()));
}

void StrokeDocker::selectionChanged()
{
    KoCanvasController* canvasController = KoToolManager::instance()->activeCanvasController();
    KoSelection *selection = canvasController->canvas()->shapeManager()->selection();
    KoShape * shape = selection->firstSelectedShape();
    if( shape )
        setStroke( shape->border() );
}

void KPrView::createAnimation()
{
    static int animationcount = 0;
    KoSelection * selection = kopaCanvas()->shapeManager()->selection();
    QList<KoShape*> selectedShapes = selection->selectedShapes();
    foreach( KoShape * shape, selectedShapes )
    {
        Q_UNUSED(shape);
        /*KPrShapeAnimationOld * animation = new KPrAnimationMoveAppear( shape, animationcount );
        KPrDocument * doc = static_cast<KPrDocument *>( kopaDocument() );
        KPrAnimationCreateCommand * command = new KPrAnimationCreateCommand( doc, animation );
        kopaCanvas()->addCommand( command );*/
    }

bool KisNodeManager::Private::activateNodeImpl(KisNodeSP node)
{
    Q_ASSERT(view);
    Q_ASSERT(view->canvasBase());
    Q_ASSERT(view->canvasBase()->globalShapeManager());
    Q_ASSERT(imageView);
    if (node && node == q->activeNode()) {
        return false;
    }

    // Set the selection on the shape manager to the active layer
    // and set call KoSelection::setActiveLayer( KoShapeLayer* layer )
    // with the parent of the active layer.
    KoSelection *selection = view->canvasBase()->globalShapeManager()->selection();
    Q_ASSERT(selection);
    selection->deselectAll();

    if (!node) {
        selection->setActiveLayer(0);
        imageView->setCurrentNode(0);
        maskManager.activateMask(0);
        layerManager.activateLayer(0);
    } else {

        KoShape * shape = view->document()->shapeForNode(node);
        Q_ASSERT(shape);

        selection->select(shape);
        KoShapeLayer * shapeLayer = dynamic_cast<KoShapeLayer*>(shape);

        Q_ASSERT(shapeLayer);
//         shapeLayer->setGeometryProtected(node->userLocked());
//         shapeLayer->setVisible(node->visible());
        selection->setActiveLayer(shapeLayer);

        imageView->setCurrentNode(node);
        if (KisLayerSP layer = dynamic_cast<KisLayer*>(node.data())) {
            maskManager.activateMask(0);
            layerManager.activateLayer(layer);
        } else if (KisMaskSP mask = dynamic_cast<KisMask*>(node.data())) {
            maskManager.activateMask(mask);
            // XXX_NODE: for now, masks cannot be nested.
            layerManager.activateLayer(static_cast<KisLayer*>(node->parent().data()));
        }

    }
    return true;
}

void KoPAView::editSelectAll()
{
    KoSelection* selection = kopaCanvas()->shapeManager()->selection();
    if( !selection )
        return;

    QList<KoShape*> shapes = activePage()->shapes();

    foreach( KoShape *shape, shapes ) {
        KoShapeLayer *layer = dynamic_cast<KoShapeLayer *>( shape );

        if ( layer ) {
            QList<KoShape*> layerShapes( layer->shapes() );
            foreach( KoShape *layerShape, layerShapes ) {
                selection->select( layerShape );
                layerShape->update();
            }
        }

ShapeMoveStrategy::ShapeMoveStrategy( KoTool *tool, KoCanvasBase *canvas, const QPointF &clicked)
: KoInteractionStrategy(tool, canvas)
, m_start(clicked)
{
    QList<KoShape*> selectedShapes = canvas->shapeManager()->selection()->selectedShapes(KoFlake::TopLevelSelection);
    QRectF boundingRect;
    foreach(KoShape *shape, selectedShapes) {
        if( ! shape->isEditable() )
            continue;
        m_selectedShapes << shape;
        m_previousPositions << shape->position();
        m_newPositions << shape->position();
        boundingRect = boundingRect.unite( shape->boundingRect() );
    }
    KoSelection * selection = m_canvas->shapeManager()->selection();
    m_initialOffset = selection->absolutePosition( SelectionDecorator::hotPosition() ) - m_start;
    m_initialSelectionPosition = selection->position();
    m_canvas->snapGuide()->setIgnoredShapes( selection->selectedShapes( KoFlake::FullSelection ) );

    tool->setStatusText( i18n("Press ALT to hold x- or y-position.") );
}

void StrokeDocker::applyChanges()
{
    KoCanvasController* canvasController = KoToolManager::instance()->activeCanvasController();
    KoSelection *selection = canvasController->canvas()->shapeManager()->selection();

    canvasController->canvas()->resourceProvider()->setActiveBorder( d->border );

    if( ! selection || ! selection->count() )
        return;

    KoLineBorder * newBorder = new KoLineBorder(d->border);
    KoLineBorder * oldBorder = dynamic_cast<KoLineBorder*>( selection->firstSelectedShape()->border() );
    if( oldBorder )
    {
        newBorder->setColor( oldBorder->color() );
        newBorder->setLineBrush( oldBorder->lineBrush() );
    }

    KoShapeBorderCommand *cmd = new KoShapeBorderCommand( selection->selectedShapes(), newBorder );
    canvasController->canvas()->addCommand( cmd );
}

void RefinePathPlugin::slotRefinePath()
{
    KoCanvasController* canvasController = KoToolManager::instance()->activeCanvasController();
    KoSelection *selection = canvasController->canvas()->shapeManager()->selection();
    KoShape * shape = selection->firstSelectedShape();
    if (! shape)
        return;

    // check if we have a path based shape
    KoPathShape * path = dynamic_cast<KoPathShape*>(shape);
    if (! path)
        return;

    // check if it is no parametric shape
    KoParameterShape * ps = dynamic_cast<KoParameterShape*>(shape);
    if (ps && ps->isParametricShape())
        return;

    if (QDialog::Rejected == m_RefinePathDlg->exec())
        return;

    canvasController->canvas()->addCommand(new KarbonPathRefineCommand(path, m_RefinePathDlg->knots()));
}