1 /*
2 * This file is part of the WebKit project.
3 *
4 * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 *
21 */
22
23 #include "config.h"
24
25 #if ENABLE(SVG)
26 #include "RenderSVGTextPath.h"
27
28 #include "FloatQuad.h"
29 #include "RenderBlock.h"
30 #include "SVGInlineTextBox.h"
31 #include "SVGPathElement.h"
32 #include "SVGRootInlineBox.h"
33 #include "SVGTextPathElement.h"
34 #include "SVGTransformList.h"
35
36 namespace WebCore {
37
RenderSVGTextPath(Node * n)38 RenderSVGTextPath::RenderSVGTextPath(Node* n)
39 : RenderSVGInline(n)
40 , m_startOffset(0.0f)
41 , m_exactAlignment(true)
42 , m_stretchMethod(false)
43 {
44 }
45
layoutPath() const46 Path RenderSVGTextPath::layoutPath() const
47 {
48 SVGTextPathElement* textPathElement = static_cast<SVGTextPathElement*>(node());
49 String pathId = SVGURIReference::getTarget(textPathElement->href());
50 Element* targetElement = textPathElement->document()->getElementById(pathId);
51 if (!targetElement || !targetElement->hasTagName(SVGNames::pathTag))
52 return Path();
53
54 SVGPathElement* pathElement = static_cast<SVGPathElement*>(targetElement);
55
56 Path pathData = pathElement->toPathData();
57 // Spec: The transform attribute on the referenced 'path' element represents a
58 // supplemental transformation relative to the current user coordinate system for
59 // the current 'text' element, including any adjustments to the current user coordinate
60 // system due to a possible transform attribute on the current 'text' element.
61 // http://www.w3.org/TR/SVG/text.html#TextPathElement
62 pathData.transform(pathElement->animatedLocalTransform());
63 return pathData;
64 }
65
startOffset() const66 float RenderSVGTextPath::startOffset() const
67 {
68 return static_cast<SVGTextPathElement*>(node())->startOffset().valueAsPercentage();
69 }
70
exactAlignment() const71 bool RenderSVGTextPath::exactAlignment() const
72 {
73 return static_cast<SVGTextPathElement*>(node())->spacing() == SVG_TEXTPATH_SPACINGTYPE_EXACT;
74 }
75
stretchMethod() const76 bool RenderSVGTextPath::stretchMethod() const
77 {
78 return static_cast<SVGTextPathElement*>(node())->method() == SVG_TEXTPATH_METHODTYPE_STRETCH;
79 }
80
81 }
82
83 #endif // ENABLE(SVG)
84