void FontBuilder::updateAdjustedSize(FontDescription& fontDescription, const ComputedStyle& style, FontSelector* fontSelector)
{
const float specifiedSize = fontDescription.specifiedSize();
if (!fontDescription.hasSizeAdjust() || !specifiedSize)
return;
// We need to create a temporal Font to get xHeight of a primary font.
// The aspect value is based on the xHeight of the font for the computed font size,
// so we need to reset the adjustedSize to computedSize. See FontDescription::effectiveFontSize.
fontDescription.setAdjustedSize(fontDescription.computedSize());
Font font(fontDescription);
font.update(fontSelector);
if (!font.fontMetrics().hasXHeight())
return;
const float sizeAdjust = fontDescription.sizeAdjust();
float aspectValue = font.fontMetrics().xHeight() / specifiedSize;
float adjustedSize = (sizeAdjust / aspectValue) * specifiedSize;
adjustedSize = getComputedSizeFromSpecifiedSize(fontDescription, style.effectiveZoom(), adjustedSize);
float multiplier = style.textAutosizingMultiplier();
if (multiplier > 1)
adjustedSize = TextAutosizer::computeAutosizedFontSize(adjustedSize, multiplier);
fontDescription.setAdjustedSize(adjustedSize);
}
void FontBuilder::createFontForDocument(PassRefPtr<FontSelector> fontSelector, RenderStyle* documentStyle)
{
FontDescription fontDescription = FontDescription();
fontDescription.setScript(localeToScriptCodeForFontSelection(documentStyle->locale()));
if (Settings* settings = m_document->settings()) {
fontDescription.setUsePrinterFont(m_document->printing());
const AtomicString& standardFont = settings->standardFontFamily(fontDescription.script());
if (!standardFont.isEmpty()) {
fontDescription.setGenericFamily(FontDescription::StandardFamily);
fontDescription.firstFamily().setFamily(standardFont);
fontDescription.firstFamily().appendFamily(0);
}
fontDescription.setKeywordSize(CSSValueMedium - CSSValueXxSmall + 1);
int size = FontSize::fontSizeForKeyword(m_document, CSSValueMedium, false);
fontDescription.setSpecifiedSize(size);
fontDescription.setComputedSize(getComputedSizeFromSpecifiedSize(fontDescription, documentStyle->effectiveZoom(), size));
} else {
fontDescription.setUsePrinterFont(m_document->printing());
}
FontOrientation fontOrientation;
NonCJKGlyphOrientation glyphOrientation;
getFontAndGlyphOrientation(documentStyle, fontOrientation, glyphOrientation);
fontDescription.setOrientation(fontOrientation);
fontDescription.setNonCJKGlyphOrientation(glyphOrientation);
documentStyle->setFontDescription(fontDescription);
documentStyle->font().update(fontSelector);
}
void FontBuilder::updateComputedSize(FontDescription& fontDescription, const ComputedStyle& style)
{
float computedSize = getComputedSizeFromSpecifiedSize(fontDescription, style.effectiveZoom(), fontDescription.specifiedSize());
float multiplier = style.textAutosizingMultiplier();
if (multiplier > 1)
computedSize = TextAutosizer::computeAutosizedFontSize(computedSize, multiplier);
fontDescription.setComputedSize(computedSize);
}
void FontBuilder::createFontForDocument(PassRefPtrWillBeRawPtr<FontSelector> fontSelector, RenderStyle* documentStyle)
{
FontDescription fontDescription = FontDescription();
fontDescription.setScript(localeToScriptCodeForFontSelection(documentStyle->locale()));
setFontFamilyToStandard(fontDescription, m_document);
fontDescription.setKeywordSize(CSSValueMedium - CSSValueXxSmall + 1);
int size = FontSize::fontSizeForKeyword(m_document, CSSValueMedium, false);
fontDescription.setSpecifiedSize(size);
fontDescription.setComputedSize(getComputedSizeFromSpecifiedSize(fontDescription, documentStyle->effectiveZoom(), size));
FontOrientation fontOrientation;
NonCJKGlyphOrientation glyphOrientation;
getFontAndGlyphOrientation(documentStyle, fontOrientation, glyphOrientation);
fontDescription.setOrientation(fontOrientation);
fontDescription.setNonCJKGlyphOrientation(glyphOrientation);
documentStyle->setFontDescription(fontDescription);
documentStyle->font().update(fontSelector);
}
void FontBuilder::fromSystemFont(CSSValueID valueId, float effectiveZoom)
{
FontDescriptionChangeScope scope(this);
FontDescription fontDescription;
RenderTheme::theme().systemFont(valueId, fontDescription);
// Double-check and see if the theme did anything. If not, don't bother updating the font.
if (!fontDescription.isAbsoluteSize())
return;
// Make sure the rendering mode and printer font settings are updated.
const Settings* settings = m_document->settings();
ASSERT(settings); // If we're doing style resolution, this document should always be in a frame and thus have settings
if (!settings)
return;
// Handle the zoom factor.
fontDescription.setComputedSize(getComputedSizeFromSpecifiedSize(fontDescription, effectiveZoom, fontDescription.specifiedSize()));
scope.set(fontDescription);
}
void FontBuilder::setSize(FontDescription& fontDescription, float effectiveZoom, float size)
{
fontDescription.setSpecifiedSize(size);
fontDescription.setComputedSize(getComputedSizeFromSpecifiedSize(fontDescription, effectiveZoom, size));
}
void FontBuilder::updateComputedSize(RenderStyle* style, const RenderStyle* parentStyle)
{
FontDescriptionChangeScope scope(this);
scope.fontDescription().setComputedSize(getComputedSizeFromSpecifiedSize(scope.fontDescription(), style->effectiveZoom(), scope.fontDescription().specifiedSize()));
}
