static inline bool createMaskAndSwapContextForTextGradient(GraphicsContext*& context,
GraphicsContext*& savedContext,
OwnPtr<ImageBuffer>& imageBuffer,
const RenderObject* object)
{
const RenderObject* textRootBlock = findTextRootObject(object);
AffineTransform transform = absoluteTransformForRenderer(textRootBlock);
FloatRect maskAbsoluteBoundingBox = transform.mapRect(textRootBlock->repaintRectInLocalCoordinates());
IntRect maskImageRect = enclosingIntRect(maskAbsoluteBoundingBox);
if (maskImageRect.isEmpty())
return false;
// Allocate an image buffer as big as the absolute unclipped size of the object
OwnPtr<ImageBuffer> maskImage = ImageBuffer::create(maskImageRect.size());
if (!maskImage)
return false;
GraphicsContext* maskImageContext = maskImage->context();
// Transform the mask image coordinate system to absolute screen coordinates
maskImageContext->translate(-maskAbsoluteBoundingBox.x(), -maskAbsoluteBoundingBox.y());
maskImageContext->concatCTM(transform);
imageBuffer.set(maskImage.release());
savedContext = context;
context = maskImageContext;
return true;
}
FloatRect LayoutSVGResourceMasker::resourceBoundingBox(const LayoutObject* object)
{
SVGMaskElement* maskElement = toSVGMaskElement(element());
ASSERT(maskElement);
FloatRect objectBoundingBox = object->objectBoundingBox();
FloatRect maskBoundaries = SVGLengthContext::resolveRectangle<SVGMaskElement>(maskElement, maskElement->maskUnits()->currentValue()->enumValue(), objectBoundingBox);
// Resource was not layouted yet. Give back clipping rect of the mask.
if (selfNeedsLayout())
return maskBoundaries;
if (m_maskContentBoundaries.isEmpty())
calculateMaskContentPaintInvalidationRect();
FloatRect maskRect = m_maskContentBoundaries;
if (maskElement->maskContentUnits()->currentValue()->value() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX) {
AffineTransform transform;
transform.translate(objectBoundingBox.x(), objectBoundingBox.y());
transform.scaleNonUniform(objectBoundingBox.width(), objectBoundingBox.height());
maskRect = transform.mapRect(maskRect);
}
maskRect.intersect(maskBoundaries);
return maskRect;
}
LayoutRect SVGInlineTextBox::localSelectionRect(unsigned startPosition, unsigned endPosition) const
{
startPosition = clampedOffset(startPosition);
endPosition = clampedOffset(endPosition);
if (startPosition >= endPosition)
return LayoutRect();
auto& style = renderer().style();
AffineTransform fragmentTransform;
FloatRect selectionRect;
unsigned fragmentStartPosition = 0;
unsigned fragmentEndPosition = 0;
unsigned textFragmentsSize = m_textFragments.size();
for (unsigned i = 0; i < textFragmentsSize; ++i) {
const SVGTextFragment& fragment = m_textFragments.at(i);
fragmentStartPosition = startPosition;
fragmentEndPosition = endPosition;
if (!mapStartEndPositionsIntoFragmentCoordinates(fragment, fragmentStartPosition, fragmentEndPosition))
continue;
FloatRect fragmentRect = selectionRectForTextFragment(fragment, fragmentStartPosition, fragmentEndPosition, &style);
fragment.buildFragmentTransform(fragmentTransform);
if (!fragmentTransform.isIdentity())
fragmentRect = fragmentTransform.mapRect(fragmentRect);
selectionRect.unite(fragmentRect);
}
return enclosingIntRect(selectionRect);
}
FloatRect SVGInlineTextBox::calculateBoundaries() const
{
FloatRect textRect;
RenderSVGInlineText* textRenderer = toRenderSVGInlineText(this->textRenderer());
ASSERT(textRenderer);
float scalingFactor = textRenderer->scalingFactor();
ASSERT(scalingFactor);
float baseline = textRenderer->scaledFont().fontMetrics().floatAscent() / scalingFactor;
AffineTransform fragmentTransform;
unsigned textFragmentsSize = m_textFragments.size();
for (unsigned i = 0; i < textFragmentsSize; ++i) {
const SVGTextFragment& fragment = m_textFragments.at(i);
FloatRect fragmentRect(fragment.x, fragment.y - baseline, fragment.width, fragment.height);
fragment.buildFragmentTransform(fragmentTransform);
if (!fragmentTransform.isIdentity())
fragmentRect = fragmentTransform.mapRect(fragmentRect);
textRect.unite(fragmentRect);
}
return textRect;
}
LayoutRect SVGInlineTextBox::localSelectionRect(int startPosition, int endPosition) const
{
int boxStart = start();
startPosition = max(startPosition - boxStart, 0);
endPosition = min(endPosition - boxStart, static_cast<int>(len()));
if (startPosition >= endPosition)
return LayoutRect();
RenderStyle* style = renderer().style();
ASSERT(style);
AffineTransform fragmentTransform;
FloatRect selectionRect;
int fragmentStartPosition = 0;
int fragmentEndPosition = 0;
unsigned textFragmentsSize = m_textFragments.size();
for (unsigned i = 0; i < textFragmentsSize; ++i) {
const SVGTextFragment& fragment = m_textFragments.at(i);
fragmentStartPosition = startPosition;
fragmentEndPosition = endPosition;
if (!mapStartEndPositionsIntoFragmentCoordinates(fragment, fragmentStartPosition, fragmentEndPosition))
continue;
FloatRect fragmentRect = selectionRectForTextFragment(fragment, fragmentStartPosition, fragmentEndPosition, style);
fragment.buildFragmentTransform(fragmentTransform);
if (!fragmentTransform.isIdentity())
fragmentRect = fragmentTransform.mapRect(fragmentRect);
selectionRect.unite(fragmentRect);
}
return enclosingIntRect(selectionRect);
}
FloatRect RenderSVGResourceMasker::resourceBoundingBox(RenderObject* object)
{
// Save the reference to the calling object for relayouting it on changing resource properties.
if (!m_masker.contains(object))
m_masker.set(object, new MaskerData);
// Resource was not layouted yet. Give back clipping rect of the mask.
SVGMaskElement* maskElement = static_cast<SVGMaskElement*>(node());
FloatRect objectBoundingBox = object->objectBoundingBox();
FloatRect maskBoundaries = maskElement->maskBoundingBox(objectBoundingBox);
if (selfNeedsLayout())
return maskBoundaries;
if (m_maskBoundaries.isEmpty())
calculateMaskContentRepaintRect();
if (!maskElement)
return FloatRect();
FloatRect maskRect = m_maskBoundaries;
if (maskElement->maskContentUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX) {
AffineTransform transform;
transform.translate(objectBoundingBox.x(), objectBoundingBox.y());
transform.scaleNonUniform(objectBoundingBox.width(), objectBoundingBox.height());
maskRect = transform.mapRect(maskRect);
}
maskRect.intersect(maskBoundaries);
return maskRect;
}
bool SVGRenderSupport::paintInfoIntersectsRepaintRect(const FloatRect& localRepaintRect, const AffineTransform& localTransform, const PaintInfo& paintInfo)
{
if (localTransform.isIdentity())
return localRepaintRect.intersects(paintInfo.rect);
return localTransform.mapRect(localRepaintRect).intersects(paintInfo.rect);
}
FloatRect RenderSVGResourceMasker::resourceBoundingBox(RenderObject* object)
{
SVGMaskElement* maskElement = static_cast<SVGMaskElement*>(node());
ASSERT(maskElement);
FloatRect objectBoundingBox = object->objectBoundingBox();
FloatRect maskBoundaries = maskElement->maskBoundingBox(objectBoundingBox);
// Resource was not layouted yet. Give back clipping rect of the mask.
if (selfNeedsLayout())
return maskBoundaries;
if (m_maskContentBoundaries.isEmpty())
calculateMaskContentRepaintRect();
FloatRect maskRect = m_maskContentBoundaries;
if (maskElement->maskContentUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX) {
AffineTransform transform;
transform.translate(objectBoundingBox.x(), objectBoundingBox.y());
transform.scaleNonUniform(objectBoundingBox.width(), objectBoundingBox.height());
maskRect = transform.mapRect(maskRect);
}
maskRect.intersect(maskBoundaries);
return maskRect;
}
static inline bool createMaskAndSwapContextForTextGradient(GraphicsContext*& context,
GraphicsContext*& savedContext,
OwnPtr<ImageBuffer>& imageBuffer,
RenderObject* object)
{
RenderObject* textRootBlock = RenderSVGText::locateRenderSVGTextAncestor(object);
ASSERT(textRootBlock);
AffineTransform absoluteTransform;
SVGImageBufferTools::calculateTransformationToOutermostSVGCoordinateSystem(textRootBlock, absoluteTransform);
FloatRect absoluteTargetRect = absoluteTransform.mapRect(textRootBlock->repaintRectInLocalCoordinates());
FloatRect clampedAbsoluteTargetRect = SVGImageBufferTools::clampedAbsoluteTargetRectForRenderer(textRootBlock, absoluteTargetRect);
if (clampedAbsoluteTargetRect.isEmpty())
return false;
OwnPtr<ImageBuffer> maskImage;
if (!SVGImageBufferTools::createImageBuffer(absoluteTargetRect, clampedAbsoluteTargetRect, maskImage, ColorSpaceDeviceRGB))
return false;
GraphicsContext* maskImageContext = maskImage->context();
ASSERT(maskImageContext);
maskImageContext->translate(-clampedAbsoluteTargetRect.x(), -clampedAbsoluteTargetRect.y());
maskImageContext->concatCTM(absoluteTransform);
ASSERT(maskImage);
savedContext = context;
context = maskImageContext;
imageBuffer = maskImage.release();
return true;
}
FloatRect RenderSVGResourceClipper::resourceBoundingBox(const FloatRect& objectBoundingBox) const
{
FloatRect clipRect;
for (Node* childNode = node()->firstChild(); childNode; childNode = childNode->nextSibling()) {
if (!childNode->isSVGElement() || !static_cast<SVGElement*>(childNode)->isStyledTransformable())
continue;
SVGStyledTransformableElement* styled = static_cast<SVGStyledTransformableElement*>(childNode);
RenderStyle* style = styled->renderer() ? styled->renderer()->style() : 0;
if (!style || style->display() == NONE)
continue;
clipRect.unite(styled->renderer()->objectBoundingBox());
}
if (clipRect.isEmpty())
return FloatRect();
if (static_cast<SVGClipPathElement*>(node())->clipPathUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX) {
AffineTransform obbTransform;
obbTransform.translate(objectBoundingBox.x(), objectBoundingBox.y());
obbTransform.scaleNonUniform(objectBoundingBox.width(), objectBoundingBox.height());
return obbTransform.mapRect(clipRect);
}
return clipRect;
}
static inline AffineTransform clipToTextMask(GraphicsContext* context,
OwnPtr<ImageBuffer>& imageBuffer,
FloatRect& targetRect,
RenderObject* object,
bool boundingBoxMode,
const AffineTransform& gradientTransform)
{
RenderObject* textRootBlock = RenderSVGText::locateRenderSVGTextAncestor(object);
ASSERT(textRootBlock);
targetRect = textRootBlock->repaintRectInLocalCoordinates();
AffineTransform absoluteTransform;
SVGImageBufferTools::calculateTransformationToOutermostSVGCoordinateSystem(textRootBlock, absoluteTransform);
FloatRect absoluteTargetRect = absoluteTransform.mapRect(targetRect);
FloatRect clampedAbsoluteTargetRect = SVGImageBufferTools::clampedAbsoluteTargetRectForRenderer(textRootBlock, absoluteTargetRect);
SVGImageBufferTools::clipToImageBuffer(context, absoluteTransform, clampedAbsoluteTargetRect, imageBuffer);
AffineTransform matrix;
if (boundingBoxMode) {
FloatRect maskBoundingBox = textRootBlock->objectBoundingBox();
matrix.translate(maskBoundingBox.x(), maskBoundingBox.y());
matrix.scaleNonUniform(maskBoundingBox.width(), maskBoundingBox.height());
}
matrix *= gradientTransform;
return matrix;
}
void RenderForeignObject::computeAbsoluteRepaintRect(IntRect& r, bool f)
{
AffineTransform transform = translationForAttributes() * localTransform();
r = transform.mapRect(r);
RenderBlock::computeAbsoluteRepaintRect(r, f);
}
LayoutRect SVGRenderSupport::clippedOverflowRectForPaintInvalidation(const RenderObject* object, const RenderLayerModelObject* paintInvalidationContainer, const PaintInvalidationState* paintInvalidationState)
{
// Return early for any cases where we don't actually paint
if (object->style()->visibility() != VISIBLE && !object->enclosingLayer()->hasVisibleContent())
return LayoutRect();
// Pass our local paint rect to computeRectForPaintInvalidation() which will
// map to parent coords and recurse up the parent chain.
FloatRect paintInvalidationRect = object->paintInvalidationRectInLocalCoordinates();
paintInvalidationRect.inflate(object->style()->outlineWidth());
if (paintInvalidationState && paintInvalidationState->canMapToContainer(paintInvalidationContainer)) {
// Compute accumulated SVG transform and apply to local paint rect.
AffineTransform transform = paintInvalidationState->svgTransform() * object->localToParentTransform();
paintInvalidationRect = transform.mapRect(paintInvalidationRect);
// FIXME: These are quirks carried forward from the old paint invalidation infrastructure.
LayoutRect rect = enclosingIntRectIfNotEmpty(paintInvalidationRect);
// Offset by SVG root paint offset and apply clipping as needed.
rect.move(paintInvalidationState->paintOffset());
if (paintInvalidationState->isClipped())
rect.intersect(paintInvalidationState->clipRect());
return rect;
}
LayoutRect rect;
const RenderSVGRoot& svgRoot = mapRectToSVGRootForPaintInvalidation(object, paintInvalidationRect, rect);
svgRoot.mapRectToPaintInvalidationBacking(paintInvalidationContainer, rect, paintInvalidationState);
return rect;
}
FloatRect RenderSVGResourcePattern::calculatePatternBoundariesIncludingOverflow(PatternAttributes& attributes,
const FloatRect& objectBoundingBox,
const AffineTransform& viewBoxCTM,
const FloatRect& patternBoundaries) const
{
// Eventually calculate the pattern content boundaries (only needed with overflow="visible").
FloatRect patternContentBoundaries;
const RenderStyle* style = this->style();
if (style->overflowX() == OVISIBLE && style->overflowY() == OVISIBLE) {
for (Node* node = attributes.patternContentElement()->firstChild(); node; node = node->nextSibling()) {
if (!node->isSVGElement() || !static_cast<SVGElement*>(node)->isStyledTransformable() || !node->renderer())
continue;
patternContentBoundaries.unite(node->renderer()->repaintRectInLocalCoordinates());
}
}
if (patternContentBoundaries.isEmpty())
return patternBoundaries;
FloatRect patternBoundariesIncludingOverflow = patternBoundaries;
// Respect objectBoundingBoxMode for patternContentUnits, if viewBox is not set.
if (!viewBoxCTM.isIdentity())
patternContentBoundaries = viewBoxCTM.mapRect(patternContentBoundaries);
else if (attributes.boundingBoxModeContent())
patternContentBoundaries = FloatRect(patternContentBoundaries.x() * objectBoundingBox.width(),
patternContentBoundaries.y() * objectBoundingBox.height(),
patternContentBoundaries.width() * objectBoundingBox.width(),
patternContentBoundaries.height() * objectBoundingBox.height());
patternBoundariesIncludingOverflow.unite(patternContentBoundaries);
return patternBoundariesIncludingOverflow;
}
static inline void calculateGlyphBoundaries(const QueryData* queryData, const SVGTextFragment& fragment, int startPosition, FloatRect& extent)
{
float scalingFactor = queryData->textLayoutObject->scalingFactor();
ASSERT(scalingFactor);
FloatPoint glyphPosition = calculateGlyphPositionWithoutTransform(queryData, fragment, startPosition);
glyphPosition.move(0, -queryData->textLayoutObject->scaledFont().fontMetrics().floatAscent() / scalingFactor);
extent.setLocation(glyphPosition);
// Use the SVGTextMetrics computed by SVGTextMetricsBuilder (which spends
// time attempting to compute more correct glyph bounds already, handling
// cursive scripts to some degree.)
const Vector<SVGTextMetrics>& textMetricsValues = queryData->textLayoutObject->layoutAttributes()->textMetricsValues();
const SVGTextMetrics& metrics = findMetricsForCharacter(textMetricsValues, fragment, startPosition);
// TODO(fs): Negative glyph extents seems kind of weird to have, but
// presently it can occur in some cases (like Arabic.)
FloatSize glyphSize(std::max<float>(metrics.width(), 0), std::max<float>(metrics.height(), 0));
extent.setSize(glyphSize);
// If RTL, adjust the starting point to align with the LHS of the glyph bounding box.
if (!queryData->textBox->isLeftToRightDirection()) {
if (queryData->isVerticalText)
extent.move(0, -glyphSize.height());
else
extent.move(-glyphSize.width(), 0);
}
AffineTransform fragmentTransform;
fragment.buildFragmentTransform(fragmentTransform, SVGTextFragment::TransformIgnoringTextLength);
extent = fragmentTransform.mapRect(extent);
}
void SVGRenderSupport::intersectRepaintRectWithShadows(const RenderObject* object, FloatRect& repaintRect)
{
// Since -webkit-svg-shadow enables shadow drawing for its children, but its children
// don't inherit the shadow in their SVGRenderStyle, we need to search our parents for
// shadows in order to correctly compute our repaint rect.
ASSERT(object);
const RenderObject* currentObject = object;
AffineTransform localToRootTransform;
while (currentObject && rendererHasSVGShadow(currentObject)) {
RenderStyle* style = currentObject->style();
if (style) {
const SVGRenderStyle* svgStyle = style->svgStyle();
if (svgStyle) {
if (const ShadowData* shadow = svgStyle->shadow())
shadow->adjustRectForShadow(repaintRect);
}
}
repaintRect = currentObject->localToParentTransform().mapRect(repaintRect);
localToRootTransform *= currentObject->localToParentTransform();
currentObject = currentObject->parent();
};
if (localToRootTransform.isIdentity())
return;
AffineTransform rootToLocalTransform = localToRootTransform.inverse();
repaintRect = rootToLocalTransform.mapRect(repaintRect);
}
void OpaqueRectTrackingContentLayerDelegate::paintContents(SkCanvas* canvas, const WebRect& clip, bool canPaintLCDText, WebFloatRect& opaque)
{
static const unsigned char* annotationsEnabled = 0;
if (UNLIKELY(!annotationsEnabled))
annotationsEnabled = EventTracer::getTraceCategoryEnabledFlag(TRACE_DISABLED_BY_DEFAULT("blink.graphics_context_annotations"));
GraphicsContext context(canvas);
context.setTrackOpaqueRegion(!m_opaque);
context.setCertainlyOpaque(m_opaque);
context.setShouldSmoothFonts(canPaintLCDText);
if (*annotationsEnabled)
context.setAnnotationMode(AnnotateAll);
// Record transform prior to painting, as all opaque tracking will be
// relative to this current value.
AffineTransform canvasToContentTransform = context.getCTM().inverse();
m_painter->paint(context, clip);
// Transform tracked opaque paints back to our layer's content space.
ASSERT(canvasToContentTransform.isInvertible());
ASSERT(canvasToContentTransform.preservesAxisAlignment());
opaque = canvasToContentTransform.mapRect(context.opaqueRegion().asRect());
}
void CanvasRenderingContext2D::willDraw(const FloatRect& r, unsigned options)
{
GraphicsContext* c = drawingContext();
if (!c)
return;
if (!state().m_invertibleCTM)
return;
FloatRect dirtyRect = r;
if (options & CanvasWillDrawApplyTransform) {
AffineTransform ctm = state().m_transform;
dirtyRect = ctm.mapRect(r);
}
if (options & CanvasWillDrawApplyShadow) {
// The shadow gets applied after transformation
FloatRect shadowRect(dirtyRect);
shadowRect.move(state().m_shadowOffset);
shadowRect.inflate(state().m_shadowBlur);
dirtyRect.unite(shadowRect);
}
if (options & CanvasWillDrawApplyClip) {
// FIXME: apply the current clip to the rectangle. Unfortunately we can't get the clip
// back out of the GraphicsContext, so to take clip into account for incremental painting,
// we'd have to keep the clip path around.
}
canvas()->willDraw(dirtyRect);
}
static inline void calculateGlyphBoundaries(SVGTextQuery::Data* queryData, const SVGTextFragment& fragment, int startPosition, FloatRect& extent)
{
float scalingFactor = queryData->textRenderer->scalingFactor();
ASSERT(scalingFactor);
extent.setLocation(FloatPoint(fragment.x, fragment.y - queryData->textRenderer->scaledFont().fontMetrics().floatAscent() / scalingFactor));
if (startPosition) {
SVGTextMetrics metrics = SVGTextMetrics::measureCharacterRange(queryData->textRenderer, fragment.characterOffset, startPosition);
if (queryData->isVerticalText)
extent.move(0, metrics.height());
else
extent.move(metrics.width(), 0);
}
SVGTextMetrics metrics = SVGTextMetrics::measureCharacterRange(queryData->textRenderer, fragment.characterOffset + startPosition, 1);
extent.setSize(FloatSize(metrics.width(), metrics.height()));
AffineTransform fragmentTransform;
fragment.buildFragmentTransform(fragmentTransform, SVGTextFragment::TransformIgnoringTextLength);
if (fragmentTransform.isIdentity())
return;
extent = fragmentTransform.mapRect(extent);
}
bool SVGSVGElement::checkIntersectionOrEnclosure(
const SVGElement& element,
const FloatRect& rect,
CheckIntersectionOrEnclosure mode) const {
LayoutObject* layoutObject = element.layoutObject();
ASSERT(!layoutObject || layoutObject->style());
if (!layoutObject ||
layoutObject->style()->pointerEvents() == EPointerEvents::None)
return false;
if (!isIntersectionOrEnclosureTarget(layoutObject))
return false;
AffineTransform ctm = toSVGGraphicsElement(element).computeCTM(
AncestorScope, DisallowStyleUpdate, this);
FloatRect mappedRepaintRect =
ctm.mapRect(layoutObject->visualRectInLocalSVGCoordinates());
bool result = false;
switch (mode) {
case CheckIntersection:
result = intersectsAllowingEmpty(rect, mappedRepaintRect);
break;
case CheckEnclosure:
result = rect.contains(mappedRepaintRect);
break;
default:
ASSERT_NOT_REACHED();
break;
}
return result;
}
FloatRect RenderSVGResourceMarker::markerBoundaries(const AffineTransform& markerTransformation) const
{
FloatRect coordinates = RenderSVGContainer::repaintRectInLocalCoordinates();
// Map repaint rect into parent coordinate space, in which the marker boundaries have to be evaluated
coordinates = localToParentTransform().mapRect(coordinates);
return markerTransformation.mapRect(coordinates);
}
FloatRect LayoutSVGResourceMarker::markerBoundaries(const AffineTransform& markerTransformation) const
{
FloatRect coordinates = LayoutSVGContainer::paintInvalidationRectInLocalSVGCoordinates();
// Map paint invalidation rect into parent coordinate space, in which the marker boundaries have to be evaluated
coordinates = localToSVGParentTransform().mapRect(coordinates);
return markerTransformation.mapRect(coordinates);
}
SVGFilter::SVGFilter(const AffineTransform& absoluteTransform, const FloatRect& absoluteSourceDrawingRegion, const FloatRect& targetBoundingBox, const FloatRect& filterRegion, bool effectBBoxMode)
: Filter(absoluteTransform)
, m_absoluteSourceDrawingRegion(absoluteSourceDrawingRegion)
, m_targetBoundingBox(targetBoundingBox)
, m_filterRegion(filterRegion)
, m_effectBBoxMode(effectBBoxMode)
{
m_absoluteFilterRegion = absoluteTransform.mapRect(filterRegion);
}
void SVGInlineTextBox::paintTextMatchMarker(GraphicsContext* context, const FloatPoint&, DocumentMarker* marker, RenderStyle* style, const Font& font)
{
// SVG is only interested in the TextMatch markers.
if (marker->type() != DocumentMarker::TextMatch)
return;
RenderSVGInlineText* textRenderer = toRenderSVGInlineText(this->textRenderer());
ASSERT(textRenderer);
FloatRect markerRect;
AffineTransform fragmentTransform;
for (InlineTextBox* box = textRenderer->firstTextBox(); box; box = box->nextTextBox()) {
if (!box->isSVGInlineTextBox())
continue;
SVGInlineTextBox* textBox = toSVGInlineTextBox(box);
int markerStartPosition = max<int>(marker->startOffset() - textBox->start(), 0);
int markerEndPosition = min<int>(marker->endOffset() - textBox->start(), textBox->len());
if (markerStartPosition >= markerEndPosition)
continue;
const Vector<SVGTextFragment>& fragments = textBox->textFragments();
unsigned textFragmentsSize = fragments.size();
for (unsigned i = 0; i < textFragmentsSize; ++i) {
const SVGTextFragment& fragment = fragments.at(i);
int fragmentStartPosition = markerStartPosition;
int fragmentEndPosition = markerEndPosition;
if (!textBox->mapStartEndPositionsIntoFragmentCoordinates(fragment, fragmentStartPosition, fragmentEndPosition))
continue;
FloatRect fragmentRect = textBox->selectionRectForTextFragment(fragment, fragmentStartPosition, fragmentEndPosition, style);
fragment.buildFragmentTransform(fragmentTransform);
bool fragmentTransformIsIdentity = fragmentTransform.isIdentity();
// Draw the marker highlight.
if (renderer()->frame()->editor().markedTextMatchesAreHighlighted()) {
Color color = marker->activeMatch() ?
RenderTheme::theme().platformActiveTextSearchHighlightColor() :
RenderTheme::theme().platformInactiveTextSearchHighlightColor();
GraphicsContextStateSaver stateSaver(*context);
if (!fragmentTransformIsIdentity)
context->concatCTM(fragmentTransform);
context->setFillColor(color);
context->fillRect(fragmentRect, color);
}
if (!fragmentTransformIsIdentity)
fragmentRect = fragmentTransform.mapRect(fragmentRect);
markerRect.unite(fragmentRect);
}
}
toRenderedDocumentMarker(marker)->setRenderedRect(textRenderer->localToAbsoluteQuad(markerRect).enclosingBoundingBox());
}
bool RenderSVGModelObject::checkEnclosure(RenderObject* renderer, const FloatRect& rect)
{
if (!renderer || renderer->style()->pointerEvents() == PE_NONE)
return false;
if (!isGraphicsElement(renderer))
return false;
AffineTransform ctm;
getElementCTM(static_cast<SVGElement*>(renderer->node()), ctm);
return rect.contains(ctm.mapRect(renderer->repaintRectInLocalCoordinates()));
}
PositionWithAffinity LayoutSVGInlineText::positionForPoint(const LayoutPoint& point)
{
if (!firstTextBox() || !textLength())
return createPositionWithAffinity(0, DOWNSTREAM);
ASSERT(m_scalingFactor);
float baseline = m_scaledFont.fontMetrics().floatAscent() / m_scalingFactor;
LayoutBlock* containingBlock = this->containingBlock();
ASSERT(containingBlock);
// Map local point to absolute point, as the character origins stored in the text fragments use absolute coordinates.
FloatPoint absolutePoint(point);
absolutePoint.moveBy(containingBlock->location());
float closestDistance = std::numeric_limits<float>::max();
float closestDistancePosition = 0;
const SVGTextFragment* closestDistanceFragment = 0;
SVGInlineTextBox* closestDistanceBox = 0;
AffineTransform fragmentTransform;
for (InlineTextBox* box = firstTextBox(); box; box = box->nextTextBox()) {
if (!box->isSVGInlineTextBox())
continue;
SVGInlineTextBox* textBox = toSVGInlineTextBox(box);
Vector<SVGTextFragment>& fragments = textBox->textFragments();
unsigned textFragmentsSize = fragments.size();
for (unsigned i = 0; i < textFragmentsSize; ++i) {
const SVGTextFragment& fragment = fragments.at(i);
FloatRect fragmentRect(fragment.x, fragment.y - baseline, fragment.width, fragment.height);
fragment.buildFragmentTransform(fragmentTransform);
if (!fragmentTransform.isIdentity())
fragmentRect = fragmentTransform.mapRect(fragmentRect);
float distance = 0;
if (!fragmentRect.contains(absolutePoint))
distance = squaredDistanceToClosestPoint(fragmentRect, absolutePoint);
if (distance <= closestDistance) {
closestDistance = distance;
closestDistanceBox = textBox;
closestDistanceFragment = &fragment;
closestDistancePosition = fragmentRect.x();
}
}
}
if (!closestDistanceFragment)
return createPositionWithAffinity(0, DOWNSTREAM);
int offset = closestDistanceBox->offsetForPositionInFragment(*closestDistanceFragment, absolutePoint.x() - closestDistancePosition, true);
return createPositionWithAffinity(offset + closestDistanceBox->start(), offset > 0 ? VP_UPSTREAM_IF_POSSIBLE : DOWNSTREAM);
}
FloatRect FilterEffect::drawingRegionOfInputImage(const IntRect& srcRect) const
{
ASSERT(hasResult());
FloatSize scale;
ImageBuffer::clampedSize(m_absolutePaintRect.size(), scale);
AffineTransform transform;
transform.scale(scale).translate(-m_absolutePaintRect.location());
return transform.mapRect(srcRect);
}
static inline FloatRect calculateFragmentBoundaries(const LayoutSVGInlineText& textLayoutObject, const SVGTextFragment& fragment)
{
float scalingFactor = textLayoutObject.scalingFactor();
ASSERT(scalingFactor);
float baseline = textLayoutObject.scaledFont().fontMetrics().floatAscent() / scalingFactor;
AffineTransform fragmentTransform;
FloatRect fragmentRect(fragment.x, fragment.y - baseline, fragment.width, fragment.height);
fragment.buildFragmentTransform(fragmentTransform);
return fragmentTransform.mapRect(fragmentRect);
}
VisiblePosition RenderSVGInlineText::positionForPoint(const LayoutPoint& point, const RenderRegion*)
{
if (!firstTextBox() || !textLength())
return createVisiblePosition(0, DOWNSTREAM);
float baseline = m_scaledFont.fontMetrics().floatAscent();
RenderBlock* containingBlock = this->containingBlock();
ASSERT(containingBlock);
// Map local point to absolute point, as the character origins stored in the text fragments use absolute coordinates.
FloatPoint absolutePoint(point);
absolutePoint.moveBy(containingBlock->location());
float closestDistance = std::numeric_limits<float>::max();
float closestDistancePosition = 0;
const SVGTextFragment* closestDistanceFragment = nullptr;
SVGInlineTextBox* closestDistanceBox = nullptr;
AffineTransform fragmentTransform;
for (InlineTextBox* box = firstTextBox(); box; box = box->nextTextBox()) {
if (!is<SVGInlineTextBox>(*box))
continue;
auto& textBox = downcast<SVGInlineTextBox>(*box);
Vector<SVGTextFragment>& fragments = textBox.textFragments();
unsigned textFragmentsSize = fragments.size();
for (unsigned i = 0; i < textFragmentsSize; ++i) {
const SVGTextFragment& fragment = fragments.at(i);
FloatRect fragmentRect(fragment.x, fragment.y - baseline, fragment.width, fragment.height);
fragment.buildFragmentTransform(fragmentTransform);
if (!fragmentTransform.isIdentity())
fragmentRect = fragmentTransform.mapRect(fragmentRect);
float distance = powf(fragmentRect.x() - absolutePoint.x(), 2) +
powf(fragmentRect.y() + fragmentRect.height() / 2 - absolutePoint.y(), 2);
if (distance < closestDistance) {
closestDistance = distance;
closestDistanceBox = &textBox;
closestDistanceFragment = &fragment;
closestDistancePosition = fragmentRect.x();
}
}
}
if (!closestDistanceFragment)
return createVisiblePosition(0, DOWNSTREAM);
int offset = closestDistanceBox->offsetForPositionInFragment(*closestDistanceFragment, absolutePoint.x() - closestDistancePosition, true);
return createVisiblePosition(offset + closestDistanceBox->start(), offset > 0 ? VP_UPSTREAM_IF_POSSIBLE : DOWNSTREAM);
}
bool RenderSVGModelObject::checkIntersection(RenderObject* renderer, const FloatRect& rect)
{
if (!renderer || renderer->style()->pointerEvents() == PE_NONE)
return false;
if (!isGraphicsElement(renderer))
return false;
AffineTransform ctm;
SVGElement* svgElement = toSVGElement(renderer->node());
getElementCTM(svgElement, ctm);
ASSERT(svgElement->renderer());
return intersectsAllowingEmpty(rect, ctm.mapRect(svgElement->renderer()->repaintRectInLocalCoordinates()));
}
