TextRun SVGTextMetrics::constructTextRun(RenderSVGInlineText* text, unsigned position, unsigned length, TextDirection textDirection)
{
RenderStyle* style = text->style();
ASSERT(style);
TextRun run(static_cast<const LChar*>(0) // 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
, textDirection
, isOverride(style->unicodeBidi()) /* directionalOverride */);
if (length) {
if (text->is8Bit())
run.setText(text->characters8() + position, length);
else
run.setText(text->characters16() + position, length);
}
if (textRunNeedsRenderingContext(style->font()))
run.setRenderingContext(SVGTextRunRenderingContext::create(text));
// 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() - position);
ASSERT(run.charactersLength() >= run.length());
return run;
}
TextRun SVGInlineTextBox::constructTextRun(RenderStyle* style, const SVGTextFragment& fragment) const
{
ASSERT(style);
ASSERT(textRenderer());
RenderText* text = textRenderer();
ASSERT(text);
TextRun run(text->characters() + fragment.characterOffset
, fragment.length
, false /* allowTabs */
, 0 /* xPos, only relevant with allowTabs=true */
, 0 /* padding, only relevant for justified text, not relevant for SVG */
, TextRun::AllowTrailingExpansion
, direction()
, m_dirOverride || style->rtlOrdering() == VisualOrder /* directionalOverride */);
if (textRunNeedsRenderingContext(style->font()))
run.setRenderingContext(SVGTextRunRenderingContext::create(text));
run.disableRoundingHacks();
// 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;
}
SVGTextMetrics::SVGTextMetrics(RenderSVGInlineText* text, unsigned position, unsigned length, float width, Glyph glyphNameGlyphId)
{
ASSERT(text);
bool needsContext = textRunNeedsRenderingContext(text->style()->font());
float scalingFactor = text->scalingFactor();
ASSERT(scalingFactor);
m_width = width / scalingFactor;
m_height = text->scaledFont().fontMetrics().floatHeight() / scalingFactor;
m_glyph = needsContext ? glyphNameGlyphId : 0;
m_length = length;
}
SVGTextMetrics::SVGTextMetrics(RenderSVGInlineText* text, unsigned position, unsigned length, float width, const String& glyphName)
{
ASSERT(text);
bool needsContext = textRunNeedsRenderingContext(text->style()->font());
float scalingFactor = text->scalingFactor();
ASSERT(scalingFactor);
m_width = width / scalingFactor;
m_height = text->scaledFont().fontMetrics().floatHeight() / scalingFactor;
if (needsContext) {
m_glyph.isValid = true;
m_glyph.unicodeString = text->substring(position, length);
m_glyph.name = glyphName;
}
m_length = length;
}
TextRun SVGInlineTextBox::constructTextRun(RenderStyle* style, const SVGTextFragment& fragment) const
{
ASSERT(style);
ASSERT(textRenderer());
RenderText* text = textRenderer();
ASSERT(text);
// 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*>(0) // 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);
}
if (textRunNeedsRenderingContext(style->font()))
run.setRenderingContext(SVGTextRunRenderingContext::create(text));
run.disableRoundingHacks();
// 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;
}
