1 /*
2 * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20 #include "config.h"
21
22 #if ENABLE(SVG)
23 #include "RenderSVGTextPath.h"
24
25 #include "FloatQuad.h"
26 #include "RenderBlock.h"
27 #include "SVGInlineTextBox.h"
28 #include "SVGNames.h"
29 #include "SVGPathElement.h"
30 #include "SVGRootInlineBox.h"
31 #include "SVGTextPathElement.h"
32 #include "SVGTransformList.h"
33
34 namespace WebCore {
35
RenderSVGTextPath(Node * n)36 RenderSVGTextPath::RenderSVGTextPath(Node* n)
37 : RenderSVGInline(n)
38 , m_startOffset(0.0f)
39 , m_exactAlignment(true)
40 , m_stretchMethod(false)
41 {
42 }
43
layoutPath() const44 Path RenderSVGTextPath::layoutPath() const
45 {
46 SVGTextPathElement* textPathElement = static_cast<SVGTextPathElement*>(node());
47 String pathId = SVGURIReference::getTarget(textPathElement->href());
48 Element* targetElement = textPathElement->document()->getElementById(pathId);
49 if (!targetElement || !targetElement->hasTagName(SVGNames::pathTag))
50 return Path();
51
52 SVGPathElement* pathElement = static_cast<SVGPathElement*>(targetElement);
53
54 Path pathData;
55 pathElement->toPathData(pathData);
56 // Spec: The transform attribute on the referenced 'path' element represents a
57 // supplemental transformation relative to the current user coordinate system for
58 // the current 'text' element, including any adjustments to the current user coordinate
59 // system due to a possible transform attribute on the current 'text' element.
60 // http://www.w3.org/TR/SVG/text.html#TextPathElement
61 pathData.transform(pathElement->animatedLocalTransform());
62 return pathData;
63 }
64
startOffset() const65 float RenderSVGTextPath::startOffset() const
66 {
67 return static_cast<SVGTextPathElement*>(node())->startOffset().valueAsPercentage();
68 }
69
exactAlignment() const70 bool RenderSVGTextPath::exactAlignment() const
71 {
72 return static_cast<SVGTextPathElement*>(node())->spacing() == SVG_TEXTPATH_SPACINGTYPE_EXACT;
73 }
74
stretchMethod() const75 bool RenderSVGTextPath::stretchMethod() const
76 {
77 return static_cast<SVGTextPathElement*>(node())->method() == SVG_TEXTPATH_METHODTYPE_STRETCH;
78 }
79
80 }
81
82 #endif // ENABLE(SVG)
83