bool SVGInlineTextBox::nodeAtPoint(HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit, LayoutUnit)
{
// FIXME: integrate with InlineTextBox::nodeAtPoint better.
ASSERT(!isLineBreak());
PointerEventsHitRules hitRules(PointerEventsHitRules::SVG_TEXT_HITTESTING, result.hitTestRequest(), lineLayoutItem().style()->pointerEvents());
bool isVisible = lineLayoutItem().style()->visibility() == VISIBLE;
if (isVisible || !hitRules.requireVisible) {
if (hitRules.canHitBoundingBox
|| (hitRules.canHitStroke && (lineLayoutItem().style()->svgStyle().hasStroke() || !hitRules.requireStroke))
|| (hitRules.canHitFill && (lineLayoutItem().style()->svgStyle().hasFill() || !hitRules.requireFill))) {
LayoutPoint boxOrigin(x(), y());
boxOrigin.moveBy(accumulatedOffset);
LayoutRect rect(boxOrigin, size());
if (locationInContainer.intersects(rect)) {
LineLayoutSVGInlineText lineLayoutItem = LineLayoutSVGInlineText(this->lineLayoutItem());
ASSERT(lineLayoutItem.scalingFactor());
float baseline = lineLayoutItem.scaledFont().fontMetrics().floatAscent() / lineLayoutItem.scalingFactor();
FloatPoint floatLocation = FloatPoint(locationInContainer.point());
for (const SVGTextFragment& fragment : m_textFragments) {
FloatQuad fragmentQuad = fragment.boundingQuad(baseline);
if (fragmentQuad.containsPoint(floatLocation)) {
lineLayoutItem.updateHitTestResult(result, locationInContainer.point() - toLayoutSize(accumulatedOffset));
if (!result.addNodeToListBasedTestResult(lineLayoutItem.node(), locationInContainer, rect))
return true;
}
}
}
}
}
return false;
}
static inline FloatRect calculateFragmentBoundaries(LineLayoutSVGInlineText textLineLayout, const SVGTextFragment& fragment)
{
float scalingFactor = textLineLayout.scalingFactor();
ASSERT(scalingFactor);
float baseline = textLineLayout.scaledFont().fontMetrics().floatAscent() / scalingFactor;
return fragment.boundingBox(baseline);
}
int SVGInlineTextBox::offsetForPositionInFragment(
const SVGTextFragment& fragment,
LayoutUnit position,
bool includePartialGlyphs) const {
LineLayoutSVGInlineText lineLayoutItem =
LineLayoutSVGInlineText(this->getLineLayoutItem());
float scalingFactor = lineLayoutItem.scalingFactor();
ASSERT(scalingFactor);
const ComputedStyle& style = lineLayoutItem.styleRef();
TextRun textRun = constructTextRun(style, fragment);
// Eventually handle lengthAdjust="spacingAndGlyphs".
// FIXME: Handle vertical text.
if (fragment.isTransformed()) {
AffineTransform fragmentTransform = fragment.buildFragmentTransform();
textRun.setHorizontalGlyphStretch(
clampTo<float>(fragmentTransform.xScale()));
}
return fragment.characterOffset - start() +
lineLayoutItem.scaledFont().offsetForPosition(
textRun, position * scalingFactor, includePartialGlyphs);
}
FloatRect SVGInlineTextBox::selectionRectForTextFragment(
const SVGTextFragment& fragment,
int startPosition,
int endPosition,
const ComputedStyle& style) const {
ASSERT(startPosition < endPosition);
LineLayoutSVGInlineText lineLayoutItem =
LineLayoutSVGInlineText(this->getLineLayoutItem());
float scalingFactor = lineLayoutItem.scalingFactor();
ASSERT(scalingFactor);
const Font& scaledFont = lineLayoutItem.scaledFont();
const SimpleFontData* fontData = scaledFont.primaryFont();
DCHECK(fontData);
if (!fontData)
return FloatRect();
const FontMetrics& scaledFontMetrics = fontData->getFontMetrics();
FloatPoint textOrigin(fragment.x, fragment.y);
if (scalingFactor != 1)
textOrigin.scale(scalingFactor, scalingFactor);
textOrigin.move(0, -scaledFontMetrics.floatAscent());
FloatRect selectionRect = scaledFont.selectionRectForText(
constructTextRun(style, fragment), textOrigin,
fragment.height * scalingFactor, startPosition, endPosition);
if (scalingFactor == 1)
return selectionRect;
selectionRect.scale(1 / scalingFactor);
return selectionRect;
}
static inline FloatRect calculateFragmentBoundaries(LineLayoutSVGInlineText textLineLayout, const SVGTextFragment& fragment)
{
float scalingFactor = textLineLayout.scalingFactor();
ASSERT(scalingFactor);
float baseline = textLineLayout.scaledFont().fontMetrics().floatAscent() / scalingFactor;
AffineTransform fragmentTransform;
FloatRect fragmentRect(fragment.x, fragment.y - baseline, fragment.width, fragment.height);
fragment.buildFragmentTransform(fragmentTransform);
return fragmentTransform.mapRect(fragmentRect);
}
SVGTextMetrics::SVGTextMetrics(LineLayoutSVGInlineText textLayoutItem, unsigned length, float width)
{
ASSERT(textLayoutItem);
float scalingFactor = textLayoutItem.scalingFactor();
ASSERT(scalingFactor);
m_width = width / scalingFactor;
m_height = textLayoutItem.scaledFont().fontMetrics().floatHeight() / scalingFactor;
m_length = length;
}
bool SVGInlineTextBox::nodeAtPoint(HitTestResult& result,
const HitTestLocation& locationInContainer,
const LayoutPoint& accumulatedOffset,
LayoutUnit,
LayoutUnit) {
// FIXME: integrate with InlineTextBox::nodeAtPoint better.
ASSERT(!isLineBreak());
PointerEventsHitRules hitRules(PointerEventsHitRules::SVG_TEXT_HITTESTING,
result.hitTestRequest(),
getLineLayoutItem().style()->pointerEvents());
bool isVisible =
getLineLayoutItem().style()->visibility() == EVisibility::Visible;
if (isVisible || !hitRules.requireVisible) {
if (hitRules.canHitBoundingBox ||
(hitRules.canHitStroke &&
(getLineLayoutItem().style()->svgStyle().hasStroke() ||
!hitRules.requireStroke)) ||
(hitRules.canHitFill &&
(getLineLayoutItem().style()->svgStyle().hasFill() ||
!hitRules.requireFill))) {
LayoutRect rect(topLeft(), LayoutSize(logicalWidth(), logicalHeight()));
rect.moveBy(accumulatedOffset);
if (locationInContainer.intersects(rect)) {
LineLayoutSVGInlineText lineLayoutItem =
LineLayoutSVGInlineText(this->getLineLayoutItem());
const SimpleFontData* fontData =
lineLayoutItem.scaledFont().primaryFont();
DCHECK(fontData);
if (!fontData)
return false;
DCHECK(lineLayoutItem.scalingFactor());
float baseline = fontData->getFontMetrics().floatAscent() /
lineLayoutItem.scalingFactor();
FloatPoint floatLocation = FloatPoint(locationInContainer.point());
for (const SVGTextFragment& fragment : m_textFragments) {
FloatQuad fragmentQuad = fragment.boundingQuad(baseline);
if (fragmentQuad.containsPoint(floatLocation)) {
lineLayoutItem.updateHitTestResult(
result,
locationInContainer.point() - toLayoutSize(accumulatedOffset));
if (result.addNodeToListBasedTestResult(lineLayoutItem.node(),
locationInContainer,
rect) == StopHitTesting)
return true;
}
}
}
}
}
return false;
}
LayoutRect SVGInlineTextBox::calculateBoundaries() const
{
LineLayoutSVGInlineText lineLayoutItem = LineLayoutSVGInlineText(this->lineLayoutItem());
float scalingFactor = lineLayoutItem.scalingFactor();
ASSERT(scalingFactor);
LayoutUnit baseline = lineLayoutItem.scaledFont().fontMetrics().floatAscent() / scalingFactor;
LayoutRect textBoundingRect;
for (const SVGTextFragment& fragment : m_textFragments)
textBoundingRect.unite(LayoutRect(fragment.overflowBoundingBox(baseline)));
return textBoundingRect;
}
SVGTextMetrics::SVGTextMetrics(LineLayoutSVGInlineText textLayoutItem, const TextRun& run)
{
ASSERT(textLayoutItem);
float scalingFactor = textLayoutItem.scalingFactor();
ASSERT(scalingFactor);
const Font& scaledFont = textLayoutItem.scaledFont();
// Calculate width/height using the scaled font, divide this result by the scalingFactor afterwards.
m_width = scaledFont.width(run) / scalingFactor;
m_height = scaledFont.fontMetrics().floatHeight() / scalingFactor;
ASSERT(run.length() >= 0);
m_length = static_cast<unsigned>(run.length());
}
LayoutRect SVGInlineTextBox::calculateBoundaries() const {
LineLayoutSVGInlineText lineLayoutItem =
LineLayoutSVGInlineText(this->getLineLayoutItem());
const SimpleFontData* fontData = lineLayoutItem.scaledFont().primaryFont();
DCHECK(fontData);
if (!fontData)
return LayoutRect();
float scalingFactor = lineLayoutItem.scalingFactor();
ASSERT(scalingFactor);
LayoutUnit baseline(fontData->getFontMetrics().floatAscent() / scalingFactor);
LayoutRect textBoundingRect;
for (const SVGTextFragment& fragment : m_textFragments)
textBoundingRect.unite(LayoutRect(fragment.overflowBoundingBox(baseline)));
return textBoundingRect;
}
