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Diffstat (limited to 'src/3rdparty/webkit/WebCore/bindings/js/JSCanvasRenderingContext2DCustom.cpp')
| -rw-r--r-- | src/3rdparty/webkit/WebCore/bindings/js/JSCanvasRenderingContext2DCustom.cpp | 389 |
1 files changed, 389 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/WebCore/bindings/js/JSCanvasRenderingContext2DCustom.cpp b/src/3rdparty/webkit/WebCore/bindings/js/JSCanvasRenderingContext2DCustom.cpp new file mode 100644 index 0000000..6eb4fc5 --- /dev/null +++ b/src/3rdparty/webkit/WebCore/bindings/js/JSCanvasRenderingContext2DCustom.cpp @@ -0,0 +1,389 @@ +/* + * Copyright (C) 2006, 2007 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 "FloatRect.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" +#include <runtime/Error.h> + +using namespace JSC; + +namespace WebCore { + +static JSValuePtr toJS(ExecState* exec, CanvasStyle* style) +{ + if (style->canvasGradient()) + return toJS(exec, style->canvasGradient()); + if (style->canvasPattern()) + return toJS(exec, style->canvasPattern()); + return jsString(exec, style->color()); +} + +static PassRefPtr<CanvasStyle> toHTMLCanvasStyle(ExecState*, JSValuePtr value) +{ + if (value->isString()) + return CanvasStyle::create(asString(value)->value()); + if (!value->isObject()) + return 0; + JSObject* object = asObject(value); + if (object->inherits(&JSCanvasGradient::s_info)) + return CanvasStyle::create(static_cast<JSCanvasGradient*>(object)->impl()); + if (object->inherits(&JSCanvasPattern::s_info)) + return CanvasStyle::create(static_cast<JSCanvasPattern*>(object)->impl()); + return 0; +} + +JSValuePtr JSCanvasRenderingContext2D::strokeStyle(ExecState* exec) const +{ + return toJS(exec, impl()->strokeStyle()); +} + +void JSCanvasRenderingContext2D::setStrokeStyle(ExecState* exec, JSValuePtr value) +{ + impl()->setStrokeStyle(toHTMLCanvasStyle(exec, value)); +} + +JSValuePtr JSCanvasRenderingContext2D::fillStyle(ExecState* exec) const +{ + return toJS(exec, impl()->fillStyle()); +} + +void JSCanvasRenderingContext2D::setFillStyle(ExecState* exec, JSValuePtr value) +{ + impl()->setFillStyle(toHTMLCanvasStyle(exec, value)); +} + +JSValuePtr JSCanvasRenderingContext2D::setFillColor(ExecState* exec, const ArgList& args) +{ + CanvasRenderingContext2D* context = impl(); + + // string arg = named color + // number arg = gray color + // string arg, number arg = named color, alpha + // number arg, number arg = gray color, alpha + // 4 args = r, g, b, a + // 5 args = c, m, y, k, a + switch (args.size()) { + case 1: + if (args.at(exec, 0)->isString()) + context->setFillColor(asString(args.at(exec, 0))->value()); + else + context->setFillColor(args.at(exec, 0)->toFloat(exec)); + break; + case 2: + if (args.at(exec, 0)->isString()) + context->setFillColor(asString(args.at(exec, 0))->value(), args.at(exec, 1)->toFloat(exec)); + else + context->setFillColor(args.at(exec, 0)->toFloat(exec), args.at(exec, 1)->toFloat(exec)); + break; + case 4: + context->setFillColor(args.at(exec, 0)->toFloat(exec), args.at(exec, 1)->toFloat(exec), + args.at(exec, 2)->toFloat(exec), args.at(exec, 3)->toFloat(exec)); + break; + case 5: + context->setFillColor(args.at(exec, 0)->toFloat(exec), args.at(exec, 1)->toFloat(exec), + args.at(exec, 2)->toFloat(exec), args.at(exec, 3)->toFloat(exec), args.at(exec, 4)->toFloat(exec)); + break; + default: + return throwError(exec, SyntaxError); + } + return jsUndefined(); +} + +JSValuePtr JSCanvasRenderingContext2D::setStrokeColor(ExecState* exec, const ArgList& args) +{ + CanvasRenderingContext2D* context = impl(); + + // string arg = named color + // number arg = gray color + // string arg, number arg = named color, alpha + // number arg, number arg = gray color, alpha + // 4 args = r, g, b, a + // 5 args = c, m, y, k, a + switch (args.size()) { + case 1: + if (args.at(exec, 0)->isString()) + context->setStrokeColor(asString(args.at(exec, 0))->value()); + else + context->setStrokeColor(args.at(exec, 0)->toFloat(exec)); + break; + case 2: + if (args.at(exec, 0)->isString()) + context->setStrokeColor(asString(args.at(exec, 0))->value(), args.at(exec, 1)->toFloat(exec)); + else + context->setStrokeColor(args.at(exec, 0)->toFloat(exec), args.at(exec, 1)->toFloat(exec)); + break; + case 4: + context->setStrokeColor(args.at(exec, 0)->toFloat(exec), args.at(exec, 1)->toFloat(exec), + args.at(exec, 2)->toFloat(exec), args.at(exec, 3)->toFloat(exec)); + break; + case 5: + context->setStrokeColor(args.at(exec, 0)->toFloat(exec), args.at(exec, 1)->toFloat(exec), + args.at(exec, 2)->toFloat(exec), args.at(exec, 3)->toFloat(exec), args.at(exec, 4)->toFloat(exec)); + break; + default: + return throwError(exec, SyntaxError); + } + + return jsUndefined(); +} + +JSValuePtr JSCanvasRenderingContext2D::strokeRect(ExecState* exec, const ArgList& args) +{ + CanvasRenderingContext2D* context = impl(); + + if (args.size() <= 4) + context->strokeRect(args.at(exec, 0)->toFloat(exec), args.at(exec, 1)->toFloat(exec), + args.at(exec, 2)->toFloat(exec), args.at(exec, 3)->toFloat(exec)); + else + context->strokeRect(args.at(exec, 0)->toFloat(exec), args.at(exec, 1)->toFloat(exec), + args.at(exec, 2)->toFloat(exec), args.at(exec, 3)->toFloat(exec), args.at(exec, 4)->toFloat(exec)); + + return jsUndefined(); +} + +JSValuePtr JSCanvasRenderingContext2D::drawImage(ExecState* exec, const ArgList& args) +{ + CanvasRenderingContext2D* context = impl(); + + // DrawImage has three variants: + // drawImage(img, dx, dy) + // drawImage(img, dx, dy, dw, dh) + // drawImage(img, sx, sy, sw, sh, dx, dy, dw, dh) + // Composite operation is specified with globalCompositeOperation. + // The img parameter can be a <img> or <canvas> element. + JSValuePtr value = args.at(exec, 0); + if (!value->isObject()) + return throwError(exec, TypeError); + JSObject* o = asObject(value); + + ExceptionCode ec = 0; + if (o->inherits(&JSHTMLImageElement::s_info)) { + HTMLImageElement* imgElt = static_cast<HTMLImageElement*>(static_cast<JSHTMLElement*>(o)->impl()); + switch (args.size()) { + case 3: + context->drawImage(imgElt, args.at(exec, 1)->toFloat(exec), args.at(exec, 2)->toFloat(exec)); + break; + case 5: + context->drawImage(imgElt, args.at(exec, 1)->toFloat(exec), args.at(exec, 2)->toFloat(exec), + args.at(exec, 3)->toFloat(exec), args.at(exec, 4)->toFloat(exec), ec); + setDOMException(exec, ec); + break; + case 9: + context->drawImage(imgElt, FloatRect(args.at(exec, 1)->toFloat(exec), args.at(exec, 2)->toFloat(exec), + args.at(exec, 3)->toFloat(exec), args.at(exec, 4)->toFloat(exec)), + FloatRect(args.at(exec, 5)->toFloat(exec), args.at(exec, 6)->toFloat(exec), + args.at(exec, 7)->toFloat(exec), args.at(exec, 8)->toFloat(exec)), ec); + setDOMException(exec, ec); + break; + default: + return throwError(exec, SyntaxError); + } + } else if (o->inherits(&JSHTMLCanvasElement::s_info)) { + HTMLCanvasElement* canvas = static_cast<HTMLCanvasElement*>(static_cast<JSHTMLElement*>(o)->impl()); + switch (args.size()) { + case 3: + context->drawImage(canvas, args.at(exec, 1)->toFloat(exec), args.at(exec, 2)->toFloat(exec)); + break; + case 5: + context->drawImage(canvas, args.at(exec, 1)->toFloat(exec), args.at(exec, 2)->toFloat(exec), + args.at(exec, 3)->toFloat(exec), args.at(exec, 4)->toFloat(exec), ec); + setDOMException(exec, ec); + break; + case 9: + context->drawImage(canvas, FloatRect(args.at(exec, 1)->toFloat(exec), args.at(exec, 2)->toFloat(exec), + args.at(exec, 3)->toFloat(exec), args.at(exec, 4)->toFloat(exec)), + FloatRect(args.at(exec, 5)->toFloat(exec), args.at(exec, 6)->toFloat(exec), + args.at(exec, 7)->toFloat(exec), args.at(exec, 8)->toFloat(exec)), ec); + setDOMException(exec, ec); + break; + default: + return throwError(exec, SyntaxError); + } + } else { + setDOMException(exec, TYPE_MISMATCH_ERR); + } + + return jsUndefined(); +} + +JSValuePtr JSCanvasRenderingContext2D::drawImageFromRect(ExecState* exec, const ArgList& args) +{ + CanvasRenderingContext2D* context = impl(); + + JSValuePtr value = args.at(exec, 0); + if (!value->isObject()) + return throwError(exec, TypeError); + JSObject* o = asObject(value); + + if (!o->inherits(&JSHTMLImageElement::s_info)) + return throwError(exec, TypeError); + context->drawImageFromRect(static_cast<HTMLImageElement*>(static_cast<JSHTMLElement*>(o)->impl()), + args.at(exec, 1)->toFloat(exec), args.at(exec, 2)->toFloat(exec), + args.at(exec, 3)->toFloat(exec), args.at(exec, 4)->toFloat(exec), + args.at(exec, 5)->toFloat(exec), args.at(exec, 6)->toFloat(exec), + args.at(exec, 7)->toFloat(exec), args.at(exec, 8)->toFloat(exec), + args.at(exec, 9)->toString(exec)); + return jsUndefined(); +} + +JSValuePtr JSCanvasRenderingContext2D::setShadow(ExecState* exec, const ArgList& args) +{ + CanvasRenderingContext2D* context = impl(); + + switch (args.size()) { + case 3: + context->setShadow(args.at(exec, 0)->toFloat(exec), args.at(exec, 1)->toFloat(exec), + args.at(exec, 2)->toFloat(exec)); + break; + case 4: + if (args.at(exec, 3)->isString()) + context->setShadow(args.at(exec, 0)->toFloat(exec), args.at(exec, 1)->toFloat(exec), + args.at(exec, 2)->toFloat(exec), asString(args.at(exec, 3))->value()); + else + context->setShadow(args.at(exec, 0)->toFloat(exec), args.at(exec, 1)->toFloat(exec), + args.at(exec, 2)->toFloat(exec), args.at(exec, 3)->toFloat(exec)); + break; + case 5: + if (args.at(exec, 3)->isString()) + context->setShadow(args.at(exec, 0)->toFloat(exec), args.at(exec, 1)->toFloat(exec), + args.at(exec, 2)->toFloat(exec), asString(args.at(exec, 3))->value(), + args.at(exec, 4)->toFloat(exec)); + else + context->setShadow(args.at(exec, 0)->toFloat(exec), args.at(exec, 1)->toFloat(exec), + args.at(exec, 2)->toFloat(exec), args.at(exec, 3)->toFloat(exec), + args.at(exec, 4)->toFloat(exec)); + break; + case 7: + context->setShadow(args.at(exec, 0)->toFloat(exec), args.at(exec, 1)->toFloat(exec), + args.at(exec, 2)->toFloat(exec), args.at(exec, 3)->toFloat(exec), + args.at(exec, 4)->toFloat(exec), args.at(exec, 5)->toFloat(exec), + args.at(exec, 6)->toFloat(exec)); + break; + case 8: + context->setShadow(args.at(exec, 0)->toFloat(exec), args.at(exec, 1)->toFloat(exec), + args.at(exec, 2)->toFloat(exec), args.at(exec, 3)->toFloat(exec), + args.at(exec, 4)->toFloat(exec), args.at(exec, 5)->toFloat(exec), + args.at(exec, 6)->toFloat(exec), args.at(exec, 7)->toFloat(exec)); + break; + default: + return throwError(exec, SyntaxError); + } + + return jsUndefined(); +} + +JSValuePtr JSCanvasRenderingContext2D::createPattern(ExecState* exec, const ArgList& args) +{ + CanvasRenderingContext2D* context = impl(); + + JSValuePtr value = args.at(exec, 0); + if (!value->isObject()) + return throwError(exec, TypeError); + JSObject* o = asObject(value); + + if (o->inherits(&JSHTMLImageElement::s_info)) { + ExceptionCode ec; + JSValuePtr pattern = toJS(exec, + context->createPattern(static_cast<HTMLImageElement*>(static_cast<JSHTMLElement*>(o)->impl()), + valueToStringWithNullCheck(exec, args.at(exec, 1)), ec).get()); + setDOMException(exec, ec); + return pattern; + } + if (o->inherits(&JSHTMLCanvasElement::s_info)) { + ExceptionCode ec; + JSValuePtr pattern = toJS(exec, + context->createPattern(static_cast<HTMLCanvasElement*>(static_cast<JSHTMLElement*>(o)->impl()), + valueToStringWithNullCheck(exec, args.at(exec, 1)), ec).get()); + setDOMException(exec, ec); + return pattern; + } + setDOMException(exec, TYPE_MISMATCH_ERR); + return jsUndefined(); +} + +JSValuePtr JSCanvasRenderingContext2D::putImageData(ExecState* exec, const ArgList& args) +{ + // putImageData has two variants + // putImageData(ImageData, x, y) + // putImageData(ImageData, x, y, dirtyX, dirtyY, dirtyWidth, dirtyHeight) + CanvasRenderingContext2D* context = impl(); + + ExceptionCode ec = 0; + if (args.size() >= 7) + context->putImageData(toImageData(args.at(exec, 0)), args.at(exec, 1)->toFloat(exec), args.at(exec, 2)->toFloat(exec), + args.at(exec, 3)->toFloat(exec), args.at(exec, 4)->toFloat(exec), args.at(exec, 5)->toFloat(exec), args.at(exec, 6)->toFloat(exec), ec); + else + context->putImageData(toImageData(args.at(exec, 0)), args.at(exec, 1)->toFloat(exec), args.at(exec, 2)->toFloat(exec), ec); + + setDOMException(exec, ec); + return jsUndefined(); +} + +JSValuePtr JSCanvasRenderingContext2D::fillText(ExecState* exec, const ArgList& args) +{ + CanvasRenderingContext2D* context = impl(); + + // string arg = text to draw + // number arg = x + // number arg = y + // optional number arg = maxWidth + if (args.size() < 3 || args.size() > 4) + return throwError(exec, SyntaxError); + + if (args.size() == 4) + context->fillText(args.at(exec, 0)->toString(exec), args.at(exec, 1)->toFloat(exec), args.at(exec, 2)->toFloat(exec), args.at(exec, 3)->toFloat(exec)); + else + context->fillText(args.at(exec, 0)->toString(exec), args.at(exec, 1)->toFloat(exec), args.at(exec, 2)->toFloat(exec)); + return jsUndefined(); +} + +JSValuePtr JSCanvasRenderingContext2D::strokeText(ExecState* exec, const ArgList& args) +{ + CanvasRenderingContext2D* context = impl(); + + // string arg = text to draw + // number arg = x + // number arg = y + // optional number arg = maxWidth + if (args.size() < 3 || args.size() > 4) + return throwError(exec, SyntaxError); + + if (args.size() == 4) + context->strokeText(args.at(exec, 0)->toString(exec), args.at(exec, 1)->toFloat(exec), args.at(exec, 2)->toFloat(exec), args.at(exec, 3)->toFloat(exec)); + else + context->strokeText(args.at(exec, 0)->toString(exec), args.at(exec, 1)->toFloat(exec), args.at(exec, 2)->toFloat(exec)); + return jsUndefined(); +} + +} // namespace WebCore |