void Font::drawGlyphBuffer(GraphicsContext* context, const GlyphBuffer& glyphBuffer, const FloatPoint& point) const
{
// Draw each contiguous run of glyphs that use the same font data.
const SimpleFontData* fontData = glyphBuffer.fontDataAt(0);
FloatSize offset = glyphBuffer.offsetAt(0);
FloatPoint startPoint(point);
float nextX = startPoint.x();
int lastFrom = 0;
int nextGlyph = 0;
while (nextGlyph < glyphBuffer.size()) {
const SimpleFontData* nextFontData = glyphBuffer.fontDataAt(nextGlyph);
FloatSize nextOffset = glyphBuffer.offsetAt(nextGlyph);
if (nextFontData != fontData || nextOffset != offset) {
drawGlyphs(context, fontData, glyphBuffer, lastFrom, nextGlyph - lastFrom, startPoint);
lastFrom = nextGlyph;
fontData = nextFontData;
offset = nextOffset;
startPoint.setX(nextX);
}
nextX += glyphBuffer.advanceAt(nextGlyph);
nextGlyph++;
}
drawGlyphs(context, fontData, glyphBuffer, lastFrom, nextGlyph - lastFrom, startPoint);
}
TEST(GlyphBufferTest, ReverseForSimpleRTL) {
RefPtr<SimpleFontData> font1 = TestSimpleFontData::create();
RefPtr<SimpleFontData> font2 = TestSimpleFontData::create();
GlyphBuffer glyphBuffer;
glyphBuffer.add(42, font1.get(), 10);
glyphBuffer.add(43, font1.get(), 15);
glyphBuffer.add(44, font2.get(), 25);
EXPECT_FALSE(glyphBuffer.isEmpty());
EXPECT_EQ(3u, glyphBuffer.size());
glyphBuffer.reverseForSimpleRTL(30, 100);
EXPECT_FALSE(glyphBuffer.isEmpty());
EXPECT_EQ(3u, glyphBuffer.size());
EXPECT_EQ(44, glyphBuffer.glyphAt(0));
EXPECT_EQ(43, glyphBuffer.glyphAt(1));
EXPECT_EQ(42, glyphBuffer.glyphAt(2));
EXPECT_EQ(font2.get(), glyphBuffer.fontDataAt(0));
EXPECT_EQ(font1.get(), glyphBuffer.fontDataAt(1));
EXPECT_EQ(font1.get(), glyphBuffer.fontDataAt(2));
EXPECT_EQ(70, glyphBuffer.xOffsetAt(0));
EXPECT_EQ(75, glyphBuffer.xOffsetAt(1));
EXPECT_EQ(85, glyphBuffer.xOffsetAt(2));
}
void Font::drawGlyphBuffer(GraphicsContext* context, const TextRun& run, const GlyphBuffer& glyphBuffer, FloatPoint& point) const
{
#if !ENABLE(SVG_FONTS)
UNUSED_PARAM(run);
#endif
// Draw each contiguous run of glyphs that use the same font data.
const SimpleFontData* fontData = glyphBuffer.fontDataAt(0);
FloatSize offset = glyphBuffer.offsetAt(0);
FloatPoint startPoint(point.x(), point.y() - glyphBuffer.initialAdvance().height());
float nextX = startPoint.x() + glyphBuffer.advanceAt(0).width();
float nextY = startPoint.y() + glyphBuffer.advanceAt(0).height();
int lastFrom = 0;
int nextGlyph = 1;
#if ENABLE(SVG_FONTS)
TextRun::RenderingContext* renderingContext = run.renderingContext();
#endif
while (nextGlyph < glyphBuffer.size()) {
const SimpleFontData* nextFontData = glyphBuffer.fontDataAt(nextGlyph);
FloatSize nextOffset = glyphBuffer.offsetAt(nextGlyph);
if (nextFontData != fontData || nextOffset != offset) {
#if ENABLE(SVG_FONTS)
if (renderingContext && fontData->isSVGFont())
renderingContext->drawSVGGlyphs(context, fontData, glyphBuffer, lastFrom, nextGlyph - lastFrom, startPoint);
else
#endif
drawGlyphs(context, fontData, glyphBuffer, lastFrom, nextGlyph - lastFrom, startPoint);
lastFrom = nextGlyph;
fontData = nextFontData;
offset = nextOffset;
startPoint.setX(nextX);
startPoint.setY(nextY);
}
nextX += glyphBuffer.advanceAt(nextGlyph).width();
nextY += glyphBuffer.advanceAt(nextGlyph).height();
nextGlyph++;
}
#if ENABLE(SVG_FONTS)
if (renderingContext && fontData->isSVGFont())
renderingContext->drawSVGGlyphs(context, fontData, glyphBuffer, lastFrom, nextGlyph - lastFrom, startPoint);
else {
#endif
drawGlyphs(context, fontData, glyphBuffer, lastFrom, nextGlyph - lastFrom, startPoint);
point.setX(nextX);
#if ENABLE(SVG_FONTS)
}
#endif
}
TEST(GlyphBufferTest, StoresSimpleFontData) {
RefPtr<SimpleFontData> font1 = TestSimpleFontData::create();
RefPtr<SimpleFontData> font2 = TestSimpleFontData::create();
GlyphBuffer glyphBuffer;
glyphBuffer.add(42, font1.get(), 10);
glyphBuffer.add(43, font1.get(), 15);
glyphBuffer.add(44, font2.get(), 12);
EXPECT_FALSE(glyphBuffer.isEmpty());
EXPECT_EQ(3u, glyphBuffer.size());
EXPECT_EQ(font1.get(), glyphBuffer.fontDataAt(0));
EXPECT_EQ(font1.get(), glyphBuffer.fontDataAt(1));
EXPECT_EQ(font2.get(), glyphBuffer.fontDataAt(2));
}
void Font::drawGlyphBuffer(GraphicsContext* context, const TextRunPaintInfo& runInfo, const GlyphBuffer& glyphBuffer, const FloatPoint& point) const
{
// Draw each contiguous run of glyphs that use the same font data.
const SimpleFontData* fontData = glyphBuffer.fontDataAt(0);
FloatPoint startPoint(point);
float nextX = startPoint.x() + glyphBuffer.advanceAt(0);
unsigned lastFrom = 0;
unsigned nextGlyph = 1;
#if ENABLE(SVG_FONTS)
TextRun::RenderingContext* renderingContext = runInfo.run.renderingContext();
#endif
while (nextGlyph < glyphBuffer.size()) {
const SimpleFontData* nextFontData = glyphBuffer.fontDataAt(nextGlyph);
if (nextFontData != fontData) {
#if ENABLE(SVG_FONTS)
if (renderingContext && fontData->isSVGFont())
renderingContext->drawSVGGlyphs(context, runInfo.run, fontData, glyphBuffer, lastFrom, nextGlyph - lastFrom, startPoint);
else
#endif
drawGlyphs(context, fontData, glyphBuffer, lastFrom, nextGlyph - lastFrom, startPoint, runInfo.bounds);
lastFrom = nextGlyph;
fontData = nextFontData;
startPoint.setX(nextX);
}
nextX += glyphBuffer.advanceAt(nextGlyph);
nextGlyph++;
}
#if ENABLE(SVG_FONTS)
if (renderingContext && fontData->isSVGFont())
renderingContext->drawSVGGlyphs(context, runInfo.run, fontData, glyphBuffer, lastFrom, nextGlyph - lastFrom, startPoint);
else
#endif
drawGlyphs(context, fontData, glyphBuffer, lastFrom, nextGlyph - lastFrom, startPoint, runInfo.bounds);
}
inline static float offsetToMiddleOfGlyphAtIndex(const GlyphBuffer& glyphBuffer, size_t i)
{
return offsetToMiddleOfGlyph(glyphBuffer.fontDataAt(i), glyphBuffer.glyphAt(i));
}