#include "config.h"
#include "Font.h"
#include "FontFallbackList.h"
#include "GlyphBuffer.h"
#include "GraphicsContext.h"
#include "IntRect.h"
#include "NotImplemented.h"
#include "SimpleFontData.h"
#include "TextRun.h"
#if OS(WINDOWS)
#include "UniscribeController.h"
typedef WebCore::UniscribeController ComplexTextController;
#endif
#if OS(DARWIN)
#include "mac/ComplexTextController.h"
#endif
#include <wx/dcclient.h>
#include "fontprops.h"
#include "non-kerned-drawing.h"
namespace WebCore {
bool Font::canReturnFallbackFontsForComplexText()
{
#if OS(WINDOWS) || OS(DARWIN)
return true;
#else
return false;
#endif
}
bool Font::canExpandAroundIdeographsInComplexText()
{
#if OS(DARWIN)
return true;
#else
return false;
#endif
}
void Font::drawGlyphs(GraphicsContext* graphicsContext, const SimpleFontData* font, const GlyphBuffer& glyphBuffer,
int from, int numGlyphs, const FloatPoint& point) const
{
Color color = graphicsContext->fillColor();
graphicsContext->save();
drawTextWithSpacing(graphicsContext, font, color, glyphBuffer, from, numGlyphs, point);
graphicsContext->restore();
}
FloatRect Font::selectionRectForComplexText(const TextRun& run, const FloatPoint& point, int h, int from, int to) const
{
#if OS(WINDOWS) || OS(DARWIN)
ComplexTextController it(this, run);
it.advance(from);
float beforeWidth = it.runWidthSoFar();
it.advance(to);
float afterWidth = it.runWidthSoFar();
if (run.rtl()) {
#if OS(WINDOWS)
it.advance(run.length());
float totalWidth = it.runWidthSoFar();
return FloatRect(point.x() + floorf(totalWidth - afterWidth), point.y(), roundf(totalWidth - beforeWidth) - floorf(totalWidth - afterWidth), h);
#else
float totalWidth = it.totalWidth();
return FloatRect(point.x() + floorf(totalWidth - afterWidth), point.y(), roundf(totalWidth - beforeWidth) - floorf(totalWidth - afterWidth), h);
#endif
}
return FloatRect(point.x() + floorf(beforeWidth), point.y(), roundf(afterWidth) - floorf(beforeWidth), h);
#else
notImplemented();
return FloatRect();
#endif
}
float Font::getGlyphsAndAdvancesForComplexText(const TextRun& , int , int , GlyphBuffer& , ForTextEmphasisOrNot ) const
{
notImplemented();
return 0;
}
void Font::drawComplexText(GraphicsContext* context, const TextRun& run, const FloatPoint& point, int from, int to) const
{
#if OS(WINDOWS) || OS(DARWIN)
GlyphBuffer glyphBuffer;
float startX = point.x();
ComplexTextController controller(this, run);
controller.advance(from);
float beforeWidth = controller.runWidthSoFar();
controller.advance(to, &glyphBuffer);
if (glyphBuffer.isEmpty())
return;
float afterWidth = controller.runWidthSoFar();
if (run.rtl()) {
#if OS(WINDOWS)
controller.advance(run.length());
startX += controller.runWidthSoFar() - afterWidth;
#else
startX += controller.totalWidth() - afterWidth;
for (int i = 0, end = glyphBuffer.size() - 1; i < glyphBuffer.size() / 2; ++i, --end)
glyphBuffer.swap(i, end);
#endif
} else
startX += beforeWidth;
FloatPoint startPoint(startX, point.y());
drawGlyphBuffer(context, run, glyphBuffer, startPoint);
#else
notImplemented();
#endif
}
void Font::drawEmphasisMarksForComplexText(GraphicsContext* context, const TextRun& run, const AtomicString& mark, const FloatPoint& point, int from, int to) const
{
GlyphBuffer glyphBuffer;
float initialAdvance = getGlyphsAndAdvancesForComplexText(run, from, to, glyphBuffer, ForTextEmphasis);
if (glyphBuffer.isEmpty())
return;
drawEmphasisMarks(context, run, glyphBuffer, mark, FloatPoint(point.x() + initialAdvance, point.y()));
}
float Font::floatWidthForComplexText(const TextRun& run, HashSet<const SimpleFontData*>* fallbackFonts, GlyphOverflow*) const
{
#if OS(WINDOWS) || OS(DARWIN)
ComplexTextController controller(this, run, fallbackFonts);
#if OS(WINDOWS)
controller.advance(run.length());
return controller.runWidthSoFar();
#else
return controller.totalWidth();
#endif
#else
notImplemented();
return 0;
#endif
}
int Font::offsetForPositionForComplexText(const TextRun& run, float x, bool includePartialGlyphs) const
{
#if OS(WINDOWS) || OS(DARWIN)
ComplexTextController controller(this, run);
return controller.offsetForPosition(x, includePartialGlyphs);
#else
notImplemented();
return 0;
#endif
}
}