TextRun SVGInlineTextBox::constructTextRun(const ComputedStyle& style, const SVGTextFragment& fragment) const
{
LineLayoutText text = lineLayoutItem();
// FIXME(crbug.com/264211): This should not be necessary but can occur if we
// layout during layout. Remove this when 264211 is fixed.
RELEASE_ASSERT(!text.needsLayout());
TextRun run(static_cast<const LChar*>(nullptr) // characters, will be set below if non-zero.
, 0 // length, will be set below if non-zero.
, 0 // xPos, only relevant with allowTabs=true
, 0 // padding, only relevant for justified text, not relevant for SVG
, TextRun::AllowTrailingExpansion
, direction()
, dirOverride() || style.rtlOrdering() == VisualOrder /* directionalOverride */);
if (fragment.length) {
if (text.is8Bit())
run.setText(text.characters8() + fragment.characterOffset, fragment.length);
else
run.setText(text.characters16() + fragment.characterOffset, fragment.length);
}
// We handle letter & word spacing ourselves.
run.disableSpacing();
// Propagate the maximum length of the characters buffer to the TextRun, even when we're only processing a substring.
run.setCharactersLength(text.textLength() - fragment.characterOffset);
ASSERT(run.charactersLength() >= run.length());
return run;
}
TextRun SVGInlineTextBox::constructTextRun(
const ComputedStyle& style,
const SVGTextFragment& fragment) const {
LineLayoutText text = getLineLayoutItem();
CHECK(!text.needsLayout());
TextRun run(
// characters, will be set below if non-zero.
static_cast<const LChar*>(nullptr),
0, // length, will be set below if non-zero.
0, // xPos, only relevant with allowTabs=true
0, // padding, only relevant for justified text, not relevant for SVG
TextRun::AllowTrailingExpansion, direction(),
dirOverride() ||
style.rtlOrdering() == VisualOrder /* directionalOverride */);
if (fragment.length) {
if (text.is8Bit())
run.setText(text.characters8() + fragment.characterOffset,
fragment.length);
else
run.setText(text.characters16() + fragment.characterOffset,
fragment.length);
}
// We handle letter & word spacing ourselves.
run.disableSpacing();
// Propagate the maximum length of the characters buffer to the TextRun, even
// when we're only processing a substring.
run.setCharactersLength(text.textLength() - fragment.characterOffset);
ASSERT(run.charactersLength() >= run.length());
return run;
}
TextRun constructTextRun(const Font& font,
const LineLayoutText text,
unsigned offset,
unsigned length,
const ComputedStyle& style) {
ASSERT(offset + length <= text.textLength());
if (text.hasEmptyText())
return constructTextRunInternal(font, static_cast<const LChar*>(nullptr), 0,
style, LTR);
if (text.is8Bit())
return constructTextRunInternal(font, text.characters8() + offset, length,
style, LTR);
TextRun run = constructTextRunInternal(font, text.characters16() + offset,
length, style, LTR);
run.setDirection(directionForRun(run));
return run;
}