KisLayerUtils::Private Namespace Reference

Functions
QRect	realNodeChangeRect (KisNodeSP rootNode, QRect currentRect=QRect())
void	refreshHiddenAreaAsync (KisImageSP image, KisNodeSP rootNode, const QRect &preparedArea, const QRect &extraUpdateRect)

Function Documentation

realNodeChangeRect()

QRect KisLayerUtils::Private::realNodeChangeRect	(	KisNodeSP	rootNode,
		QRect	currentRect = QRect() )

Definition at line 2278 of file kis_layer_utils.cpp.

                                                                              {
        KisNodeSP node = rootNode->firstChild();
 
        while(node) {
            currentRect |= realNodeChangeRect(node, currentRect);
            node = node->nextSibling();
        }
 
        if (!rootNode->isFakeNode() && !rootNode->projectionLeaf()->isMask()) {
            // TODO: it would be better to count up changeRect inside
            // node's extent() method
            //
            // NOTE: when flattening a group layer, we should take the change rect of the
            // all the child layers as the source of the change. We are calculating
            // the change rect **before** the update itself, therefore rootNode->exactBounds()
            // is not yet prepared, hence its exact bounds still contail old values.
            currentRect |= rootNode->projectionPlane()->changeRect(rootNode->exactBounds() | currentRect);
        }
 
        return currentRect;
    }

References KisBaseNode::exactBounds(), KisNode::firstChild(), KisBaseNode::isFakeNode(), KisNode::nextSibling(), KisNode::projectionLeaf, KisNode::projectionPlane(), and realNodeChangeRect().

refreshHiddenAreaAsync()

void KisLayerUtils::Private::refreshHiddenAreaAsync	(	KisImageSP	image,
		KisNodeSP	rootNode,
		const QRect &	preparedArea,
		const QRect &	extraUpdateRect )

Definition at line 2302 of file kis_layer_utils.cpp.

                                                                                                                               {
        QRect realNodeRect = Private::realNodeChangeRect(rootNode) | extraUpdateRect;
        if (!preparedArea.contains(realNodeRect)) {
 
            QRegion dirtyRegion = realNodeRect;
            dirtyRegion -= preparedArea;
 
            auto rc = dirtyRegion.begin();
            while (rc != dirtyRegion.end()) {
                image->refreshGraphAsync(rootNode, *rc, realNodeRect);
                rc++;
            }
        }
    }

References realNodeChangeRect(), and KisImage::refreshGraphAsync().