static CanvasStyle toHTMLCanvasStyle(ExecState*, JSValue value)
{
if (!value.isObject())
return CanvasStyle();
JSObject* object = asObject(value);
if (object->inherits(&JSCanvasGradient::s_info))
return CanvasStyle(jsCast<JSCanvasGradient*>(object)->impl());
if (object->inherits(&JSCanvasPattern::s_info))
return CanvasStyle(jsCast<JSCanvasPattern*>(object)->impl());
return CanvasStyle();
}
CanvasStyle CanvasStyle::createFromStringWithOverrideAlpha(const String& color, float alpha)
{
RGBA32 rgba;
ColorParseResult parseResult = parseColor(rgba, color);
switch (parseResult) {
case ParsedRGBA:
return CanvasStyle(colorWithOverrideAlpha(rgba, alpha));
case ParsedCurrentColor:
return CanvasStyle(CurrentColorWithOverrideAlpha, alpha);
case ParseFailed:
return CanvasStyle();
default:
ASSERT_NOT_REACHED();
return CanvasStyle();
}
}
CanvasStyle CanvasStyle::createFromString(const String& color, Document* document)
{
RGBA32 rgba;
ColorParseResult parseResult = parseColor(rgba, color, document);
switch (parseResult) {
case ParsedRGBA:
case ParsedSystemColor:
return CanvasStyle(rgba);
case ParsedCurrentColor:
return CanvasStyle(ConstructCurrentColor);
case ParseFailed:
return CanvasStyle();
default:
ASSERT_NOT_REACHED();
return CanvasStyle();
}
}
