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/*
* Copyright (C) Research In Motion Limited 2010. All rights reserved.
* Copyright (C) 2015 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 "SVGTextChunkBuilder.h"
#include "SVGElement.h"
#include "SVGInlineTextBox.h"
#include "SVGLengthContext.h"
#include "SVGTextFragment.h"
namespace WebCore {
SVGTextChunkBuilder::SVGTextChunkBuilder()
{
}
unsigned SVGTextChunkBuilder::totalCharacters() const
{
unsigned characters = 0;
for (const auto& chunk : m_textChunks)
characters += chunk.totalCharacters();
return characters;
}
float SVGTextChunkBuilder::totalLength() const
{
float length = 0;
for (const auto& chunk : m_textChunks)
length += chunk.totalLength();
return length;
}
float SVGTextChunkBuilder::totalAnchorShift() const
{
float anchorShift = 0;
for (const auto& chunk : m_textChunks)
anchorShift += chunk.totalAnchorShift();
return anchorShift;
}
AffineTransform SVGTextChunkBuilder::transformationForTextBox(InlineIterator::SVGTextBoxIterator textBox) const
{
auto it = m_textBoxTransformations.find(makeKey(*textBox));
return it == m_textBoxTransformations.end() ? AffineTransform() : it->value;
}
void SVGTextChunkBuilder::buildTextChunks(const Vector<InlineIterator::SVGTextBoxIterator>& lineLayoutBoxes, const UncheckedKeyHashSet<InlineIterator::SVGTextBox::Key>& chunkStarts, SVGTextFragmentMap& fragmentMap)
{
if (lineLayoutBoxes.isEmpty())
return;
unsigned limit = lineLayoutBoxes.size();
unsigned first = limit;
for (unsigned i = 0; i < limit; ++i) {
if (!chunkStarts.contains(makeKey(*lineLayoutBoxes[i])))
continue;
if (first == limit)
first = i;
else {
ASSERT_WITH_SECURITY_IMPLICATION(first != i);
m_textChunks.append(SVGTextChunk(lineLayoutBoxes, first, i, fragmentMap));
first = i;
}
}
if (first != limit)
m_textChunks.append(SVGTextChunk(lineLayoutBoxes, first, limit, fragmentMap));
}
void SVGTextChunkBuilder::layoutTextChunks(const Vector<InlineIterator::SVGTextBoxIterator>& lineLayoutBoxes, const UncheckedKeyHashSet<InlineIterator::SVGTextBox::Key>& chunkStarts, SVGTextFragmentMap& fragmentMap)
{
buildTextChunks(lineLayoutBoxes, chunkStarts, fragmentMap);
if (m_textChunks.isEmpty())
return;
for (const auto& chunk : m_textChunks)
chunk.layout(m_textBoxTransformations);
m_textChunks.clear();
}
}
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