| /* |
| * 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 Vector<float>& dash = context->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(exec, 0, globalObject(), list); |
| } |
| |
| void JSCanvasRenderingContext2D::setWebkitLineDash(ExecState* exec, 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(exec, i).toFloat(exec); |
| if (elem <= 0 || !std::isfinite(elem)) |
| return; |
| |
| dash.append(elem); |
| } |
| |
| CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl()); |
| context->setWebkitLineDash(dash); |
| } |
| |
| } // namespace WebCore |