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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, const 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 CanvasStyle toHTMLCanvasStyle(ExecState*, JSValue value)
{
if (!value.isObject())
return CanvasStyle();
JSObject* object = asObject(value);
if (object->inherits(JSCanvasGradient::info()))
return CanvasStyle(&jsCast<JSCanvasGradient*>(object)->wrapped());
if (object->inherits(JSCanvasPattern::info()))
return CanvasStyle(&jsCast<JSCanvasPattern*>(object)->wrapped());
return CanvasStyle();
}
JSValue JSCanvasRenderingContext2D::commit(ExecState&)
{
// This is a no-op in a direct-2d canvas.
return jsUndefined();
}
JSValue JSCanvasRenderingContext2D::strokeStyle(ExecState& state) const
{
return toJS(&state, globalObject(), wrapped().strokeStyle());
}
void JSCanvasRenderingContext2D::setStrokeStyle(ExecState& state, JSValue value)
{
CanvasRenderingContext2D& context = wrapped();
if (value.isString()) {
context.setStrokeColor(asString(value)->value(&state));
return;
}
context.setStrokeStyle(toHTMLCanvasStyle(&state, value));
}
JSValue JSCanvasRenderingContext2D::fillStyle(ExecState& state) const
{
return toJS(&state, globalObject(), wrapped().fillStyle());
}
void JSCanvasRenderingContext2D::setFillStyle(ExecState& state, JSValue value)
{
CanvasRenderingContext2D& context = wrapped();
if (value.isString()) {
context.setFillColor(asString(value)->value(&state));
return;
}
context.setFillStyle(toHTMLCanvasStyle(&state, value));
}
JSValue JSCanvasRenderingContext2D::webkitLineDash(ExecState& state) const
{
const Vector<float>& dash = wrapped().getLineDash();
MarkedArgumentBuffer list;
Vector<float>::const_iterator end = dash.end();
for (Vector<float>::const_iterator it = dash.begin(); it != end; ++it)
list.append(JSValue(*it));
return constructArray(&state, 0, globalObject(), list);
}
void JSCanvasRenderingContext2D::setWebkitLineDash(ExecState& state, JSValue value)
{
if (!isJSArray(value))
return;
Vector<float> dash;
JSArray* valueArray = asArray(value);
for (unsigned i = 0; i < valueArray->length(); ++i) {
float elem = valueArray->getIndex(&state, i).toFloat(&state);
if (elem <= 0 || !std::isfinite(elem))
return;
dash.append(elem);
}
wrapped().setWebkitLineDash(dash);
}
} // namespace WebCore
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