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/*
* Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "JSCanvasRenderingContext2D.h"
#include "CanvasGradient.h"
#include "CanvasPattern.h"
#include "CanvasRenderingContext2D.h"
#include "CanvasStyle.h"
#include "ExceptionCode.h"
#include "HTMLCanvasElement.h"
#include "HTMLImageElement.h"
#include "ImageData.h"
#include "JSCanvasGradient.h"
#include "JSCanvasPattern.h"
#include "JSHTMLCanvasElement.h"
#include "JSHTMLImageElement.h"
#include "JSImageData.h"
using namespace JSC;
namespace WebCore {
static JSValue toJS(ExecState* exec, JSDOMGlobalObject* globalObject, CanvasStyle* style)
{
if (style->canvasGradient())
return toJS(exec, globalObject, style->canvasGradient());
if (style->canvasPattern())
return toJS(exec, globalObject, style->canvasPattern());
return jsStringWithCache(exec, style->color());
}
static PassRefPtr<CanvasStyle> toHTMLCanvasStyle(ExecState*, JSValue value)
{
if (!value.isObject())
return 0;
JSObject* object = asObject(value);
if (object->inherits(&JSCanvasGradient::s_info))
return CanvasStyle::createFromGradient(jsCast<JSCanvasGradient*>(object)->impl());
if (object->inherits(&JSCanvasPattern::s_info))
return CanvasStyle::createFromPattern(jsCast<JSCanvasPattern*>(object)->impl());
return 0;
}
JSValue JSCanvasRenderingContext2D::strokeStyle(ExecState* exec) const
{
CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
return toJS(exec, globalObject(), context->strokeStyle());
}
void JSCanvasRenderingContext2D::setStrokeStyle(ExecState* exec, JSValue value)
{
CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
if (value.isString()) {
context->setStrokeColor(asString(value)->value(exec));
return;
}
context->setStrokeStyle(toHTMLCanvasStyle(exec, value));
}
JSValue JSCanvasRenderingContext2D::fillStyle(ExecState* exec) const
{
CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
return toJS(exec, globalObject(), context->fillStyle());
}
void JSCanvasRenderingContext2D::setFillStyle(ExecState* exec, JSValue value)
{
CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
if (value.isString()) {
context->setFillColor(asString(value)->value(exec));
return;
}
context->setFillStyle(toHTMLCanvasStyle(exec, value));
}
JSValue JSCanvasRenderingContext2D::webkitLineDash(ExecState* exec) const
{
CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
const DashArray* dash = context->webkitLineDash();
MarkedArgumentBuffer list;
DashArray::const_iterator end = dash->end();
for (DashArray::const_iterator it = dash->begin(); it != end; ++it)
list.append(JSValue(*it));
return constructArray(exec, globalObject(), list);
}
void JSCanvasRenderingContext2D::setWebkitLineDash(ExecState* exec, JSValue value)
{
if (!isJSArray(value))
return;
DashArray dash;
JSArray* valueArray = asArray(value);
for (unsigned i = 0; i < valueArray->length(); ++i) {
float elem = valueArray->getIndex(i).toFloat(exec);
if (elem <= 0 || !isfinite(elem))
return;
dash.append(elem);
}
CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
context->setWebkitLineDash(dash);
}
} // namespace WebCore
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