Classes
struct	Buffer

Public Member Functions
	Private (KisReferenceImagesDecoration *q)

void	updateBufferByImageCoordinates (const QRectF &dirtyImageRect)

void	updateBufferByWidgetCoordinates (const QRectF &dirtyWidgetRect)

Public Attributes
Buffer	buffer

KisWeakSharedPtr< KisReferenceImagesLayer >	layer

QTransform	previousTransform

QSizeF	previousViewSize

KisReferenceImagesDecoration *	q

Private Member Functions
void	updateBuffer (QRectF widgetRect, QRectF imageRect)

Detailed Description

Definition at line 16 of file KisReferenceImagesDecoration.cpp.

Constructor & Destructor Documentation

◆ Private()

KisReferenceImagesDecoration::Private::Private ( KisReferenceImagesDecoration * q )

inlineexplicit

Definition at line 36 of file KisReferenceImagesDecoration.cpp.

37 : q(q)

38 {}

KisReferenceImagesDecoration::Private::q

KisReferenceImagesDecoration * q

Definition KisReferenceImagesDecoration.cpp:29

Member Function Documentation

◆ updateBuffer()

void KisReferenceImagesDecoration::Private::updateBuffer	(	QRectF	widgetRect,
		QRectF	imageRect )

inlineprivate

Definition at line 53 of file KisReferenceImagesDecoration.cpp.

    {
        KisCoordinatesConverter *viewConverter = q->view()->viewConverter();
        QTransform transform = viewConverter->imageToWidgetTransform();
 
        qreal devicePixelRatioF = q->view()->devicePixelRatioF();
        if (buffer.image.isNull() || !buffer.bounds().contains(widgetRect)) {
            const QRectF boundingImageRect = layer->boundingImageRect();
            const QRectF boundingWidgetRect = q->view()->viewConverter()->imageToWidget(boundingImageRect);
            widgetRect = boundingWidgetRect.intersected(q->view()->rect());
 
            if (widgetRect.isNull()) return;
 
            buffer.position = widgetRect.topLeft();
            // to ensure that buffer is big enough for all the pixels on high dpi displays
            // BUG 411118
            buffer.image = QImage((widgetRect.size()*devicePixelRatioF).toSize(), QImage::Format_ARGB32);
            buffer.image.setDevicePixelRatio(devicePixelRatioF);
 
            imageRect = q->view()->viewConverter()->widgetToImage(widgetRect);
 
        }
 
        QPainter gc(&buffer.image);
 
        gc.translate(-buffer.position);
        gc.setTransform(transform, true);
 
        gc.save();
        gc.setCompositionMode(QPainter::CompositionMode_Source);
        gc.fillRect(imageRect, Qt::transparent);
        gc.restore();
 
        // to ensure that clipping rect is also big enough for all the pixels
        // BUG 411118
        gc.setClipRect(QRectF(imageRect.topLeft(), imageRect.size()*devicePixelRatioF));
        layer->paintReferences(gc);
    }

References KisReferenceImagesLayer::boundingImageRect(), KisReferenceImagesDecoration::Private::Buffer::bounds(), buffer, KisReferenceImagesDecoration::Private::Buffer::image, KisCoordinatesConverter::imageToWidgetTransform(), layer, KisReferenceImagesLayer::paintReferences(), KisReferenceImagesDecoration::Private::Buffer::position, q, and KisCanvasDecoration::view().

◆ updateBufferByImageCoordinates()

void KisReferenceImagesDecoration::Private::updateBufferByImageCoordinates ( const QRectF & dirtyImageRect )

inline

Definition at line 40 of file KisReferenceImagesDecoration.cpp.

    {
        QRectF dirtyWidgetRect = q->view()->viewConverter()->imageToWidget(dirtyImageRect);
        updateBuffer(dirtyWidgetRect, dirtyImageRect);
    }

References q, updateBuffer(), and KisCanvasDecoration::view().

◆ updateBufferByWidgetCoordinates()

void KisReferenceImagesDecoration::Private::updateBufferByWidgetCoordinates ( const QRectF & dirtyWidgetRect )

inline

Definition at line 46 of file KisReferenceImagesDecoration.cpp.

    {
        QRectF dirtyImageRect = q->view()->viewConverter()->widgetToImage(dirtyWidgetRect);
        updateBuffer(dirtyWidgetRect, dirtyImageRect);
    }

References q, updateBuffer(), and KisCanvasDecoration::view().