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102 lines
3.4 KiB
C++
102 lines
3.4 KiB
C++
/*
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* This file is part of the WebKit project.
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*
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* Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#include "config.h"
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#include "wtf/Platform.h"
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#if ENABLE(SVG)
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#include "RenderSVGTextPath.h"
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#include "FloatRect.h"
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#include "SVGInlineTextBox.h"
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#include "SVGPathElement.h"
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#include "SVGRootInlineBox.h"
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#include "SVGTextPathElement.h"
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#include "SVGTransformList.h"
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namespace WebCore {
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RenderSVGTextPath::RenderSVGTextPath(DOM::NodeImpl* n)
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: RenderSVGInline(n)
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, m_startOffset(0.0f)
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, m_exactAlignment(true)
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, m_stretchMethod(false)
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{
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}
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Path RenderSVGTextPath::layoutPath() const
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{
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SVGTextPathElement* textPathElement = static_cast<SVGTextPathElement*>(element());
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String pathId = SVGURIReference::getTarget(textPathElement->href());
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Element* targetElement = textPathElement->document()->getElementById(pathId);
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if (!targetElement || !targetElement->hasTagName(SVGNames::pathTag))
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return Path();
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SVGPathElement* pathElement = static_cast<SVGPathElement*>(targetElement);
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Path pathData = pathElement->toPathData();
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// Spec: The transform attribute on the referenced 'path' element represents a
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// supplemental transformation relative to the current user coordinate system for
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// the current 'text' element, including any adjustments to the current user coordinate
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// system due to a possible transform attribute on the current 'text' element.
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// http://www.w3.org/TR/SVG/text.html#TextPathElement
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pathData.transform(pathElement->animatedLocalTransform());
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return pathData;
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}
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float RenderSVGTextPath::startOffset() const
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{
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return static_cast<SVGTextPathElement*>(element())->startOffset().valueAsPercentage();
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}
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bool RenderSVGTextPath::exactAlignment() const
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{
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return static_cast<SVGTextPathElement*>(element())->spacing() == SVG_TEXTPATH_SPACINGTYPE_EXACT;
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}
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bool RenderSVGTextPath::stretchMethod() const
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{
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return static_cast<SVGTextPathElement*>(element())->method() == SVG_TEXTPATH_METHODTYPE_STRETCH;
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}
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void RenderSVGTextPath::absoluteRects(Vector<IntRect>& rects, int, int)
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{
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InlineRunBox* firstBox = firstLineBox();
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SVGRootInlineBox* rootBox = firstBox ? static_cast<SVGInlineTextBox*>(firstBox)->svgRootInlineBox() : 0;
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RenderObject* object = rootBox ? rootBox->object() : 0;
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if (!object)
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return;
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int xRef = object->xPos() + xPos();
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int yRef = object->yPos() + yPos();
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for (InlineRunBox* curr = firstBox; curr; curr = curr->nextLineBox()) {
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FloatRect rect(xRef + curr->xPos(), yRef + curr->yPos(), curr->width(), curr->height());
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rects.append(enclosingIntRect(absoluteTransform().mapRect(rect)));
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}
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}
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}
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#endif // ENABLE(SVG)
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