1 /*
2 * Copyright (C) 2006 Oliver Hunt <ojh16@student.canterbury.ac.nz>
3 * Copyright (C) 2006 Apple Computer Inc.
4 * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
5 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
16 *
17 * You should have received a copy of the GNU Library General Public License
18 * along with this library; see the file COPYING.LIB. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
21 */
22
23 #include "config.h"
24 #include "SVGInlineFlowBox.h"
25
26 #if ENABLE(SVG)
27 #include "DocumentMarkerController.h"
28 #include "GraphicsContext.h"
29 #include "RenderSVGInlineText.h"
30 #include "SVGInlineTextBox.h"
31 #include "SVGRenderSupport.h"
32
33 using namespace std;
34
35 namespace WebCore {
36
paintSelectionBackground(PaintInfo & paintInfo)37 void SVGInlineFlowBox::paintSelectionBackground(PaintInfo& paintInfo)
38 {
39 ASSERT(paintInfo.phase == PaintPhaseForeground || paintInfo.phase == PaintPhaseSelection);
40 ASSERT(!paintInfo.context->paintingDisabled());
41
42 PaintInfo childPaintInfo(paintInfo);
43 for (InlineBox* child = firstChild(); child; child = child->nextOnLine()) {
44 if (child->isSVGInlineTextBox())
45 static_cast<SVGInlineTextBox*>(child)->paintSelectionBackground(childPaintInfo);
46 else if (child->isSVGInlineFlowBox())
47 static_cast<SVGInlineFlowBox*>(child)->paintSelectionBackground(childPaintInfo);
48 }
49 }
50
paint(PaintInfo & paintInfo,int,int,int,int)51 void SVGInlineFlowBox::paint(PaintInfo& paintInfo, int, int, int, int)
52 {
53 ASSERT(paintInfo.phase == PaintPhaseForeground || paintInfo.phase == PaintPhaseSelection);
54 ASSERT(!paintInfo.context->paintingDisabled());
55
56 RenderObject* boxRenderer = renderer();
57 ASSERT(boxRenderer);
58
59 PaintInfo childPaintInfo(paintInfo);
60 childPaintInfo.context->save();
61
62 if (SVGRenderSupport::prepareToRenderSVGContent(boxRenderer, childPaintInfo)) {
63 for (InlineBox* child = firstChild(); child; child = child->nextOnLine()) {
64 if (child->isSVGInlineTextBox())
65 computeTextMatchMarkerRectForRenderer(toRenderSVGInlineText(static_cast<SVGInlineTextBox*>(child)->textRenderer()));
66
67 child->paint(childPaintInfo, 0, 0, 0, 0);
68 }
69 }
70
71 SVGRenderSupport::finishRenderSVGContent(boxRenderer, childPaintInfo, paintInfo.context);
72 childPaintInfo.context->restore();
73 }
74
calculateBoundaries() const75 IntRect SVGInlineFlowBox::calculateBoundaries() const
76 {
77 IntRect childRect;
78 for (InlineBox* child = firstChild(); child; child = child->nextOnLine())
79 childRect.unite(child->calculateBoundaries());
80 return childRect;
81 }
82
computeTextMatchMarkerRectForRenderer(RenderSVGInlineText * textRenderer)83 void SVGInlineFlowBox::computeTextMatchMarkerRectForRenderer(RenderSVGInlineText* textRenderer)
84 {
85 ASSERT(textRenderer);
86
87 Node* node = textRenderer->node();
88 if (!node || !node->inDocument())
89 return;
90
91 RenderStyle* style = textRenderer->style();
92 ASSERT(style);
93
94 AffineTransform fragmentTransform;
95 Document* document = textRenderer->document();
96 Vector<DocumentMarker> markers = document->markers()->markersForNode(textRenderer->node());
97
98 Vector<DocumentMarker>::iterator markerEnd = markers.end();
99 for (Vector<DocumentMarker>::iterator markerIt = markers.begin(); markerIt != markerEnd; ++markerIt) {
100 const DocumentMarker& marker = *markerIt;
101
102 // SVG is only interessted in the TextMatch marker, for now.
103 if (marker.type != DocumentMarker::TextMatch)
104 continue;
105
106 FloatRect markerRect;
107 for (InlineTextBox* box = textRenderer->firstTextBox(); box; box = box->nextTextBox()) {
108 if (!box->isSVGInlineTextBox())
109 continue;
110
111 SVGInlineTextBox* textBox = static_cast<SVGInlineTextBox*>(box);
112
113 int markerStartPosition = max<int>(marker.startOffset - textBox->start(), 0);
114 int markerEndPosition = min<int>(marker.endOffset - textBox->start(), textBox->len());
115
116 if (markerStartPosition >= markerEndPosition)
117 continue;
118
119 int fragmentStartPosition = 0;
120 int fragmentEndPosition = 0;
121
122 const Vector<SVGTextFragment>& fragments = textBox->textFragments();
123 unsigned textFragmentsSize = fragments.size();
124 for (unsigned i = 0; i < textFragmentsSize; ++i) {
125 const SVGTextFragment& fragment = fragments.at(i);
126
127 fragmentStartPosition = markerStartPosition;
128 fragmentEndPosition = markerEndPosition;
129 if (!textBox->mapStartEndPositionsIntoFragmentCoordinates(fragment, fragmentStartPosition, fragmentEndPosition))
130 continue;
131
132 FloatRect fragmentRect = textBox->selectionRectForTextFragment(fragment, fragmentStartPosition, fragmentEndPosition, style);
133 fragment.buildFragmentTransform(fragmentTransform);
134 if (!fragmentTransform.isIdentity())
135 fragmentRect = fragmentTransform.mapRect(fragmentRect);
136
137 markerRect.unite(fragmentRect);
138 }
139 }
140
141 document->markers()->setRenderedRectForMarker(node, marker, textRenderer->localToAbsoluteQuad(markerRect).enclosingBoundingBox());
142 }
143 }
144
145 } // namespace WebCore
146
147 #endif // ENABLE(SVG)
148