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/**
* Copyright (C) 2007 Rob Buis <buis@kde.org>
* Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) Research In Motion Limited 2010. All rights reserved.
* Copyright (C) 2023-2024 Apple Inc. All rights reserved.
* Copyright (C) 2014-2016 Google Inc. All rights reserved.
* Copyright (C) 2023, 2024 Igalia S.L.
*
* 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 "SVGInlineTextBox.h"
#include "FloatConversion.h"
#include "GraphicsContext.h"
#include "HitTestResult.h"
#include "LegacyInlineFlowBox.h"
#include "LegacyRenderSVGResourceSolidColor.h"
#include "LocalFrame.h"
#include "LocalFrameView.h"
#include "PointerEventsHitRules.h"
#include "RenderBlock.h"
#include "RenderInline.h"
#include "RenderSVGText.h"
#include "RenderStyleInlines.h"
#include "RenderView.h"
#include "SVGInlineTextBoxInlines.h"
#include "SVGRenderStyle.h"
#include "SVGRenderingContext.h"
#include "SVGResourcesCache.h"
#include "SVGRootInlineBox.h"
#include "SVGTextFragment.h"
#include "TextBoxSelectableRange.h"
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_IMPL(SVGInlineTextBox);
SVGInlineTextBox::SVGInlineTextBox(RenderSVGInlineText& renderer)
: LegacyInlineTextBox(renderer)
{
}
void SVGInlineTextBox::dirtyOwnLineBoxes()
{
LegacyInlineTextBox::dirtyLineBoxes();
m_textFragments = { };
}
void SVGInlineTextBox::dirtyLineBoxes()
{
dirtyOwnLineBoxes();
// And clear any following text fragments as the text on which they
// depend may now no longer exist, or glyph positions may be wrong
for (auto* nextBox = nextTextBox(); nextBox; nextBox = nextBox->nextTextBox())
nextBox->dirtyOwnLineBoxes();
}
bool SVGInlineTextBox::mapStartEndPositionsIntoFragmentCoordinates(const SVGTextFragment& fragment, unsigned& startPosition, unsigned& endPosition) const
{
unsigned startFragment = fragment.characterOffset - start();
unsigned endFragment = startFragment + fragment.length;
// Find intersection between the intervals: [startFragment..endFragment) and [startPosition..endPosition)
startPosition = std::max(startFragment, startPosition);
endPosition = std::min(endFragment, endPosition);
if (startPosition >= endPosition)
return false;
startPosition -= startFragment;
endPosition -= startFragment;
return true;
}
FloatRect SVGInlineTextBox::calculateBoundaries() const
{
FloatRect textRect;
float scalingFactor = renderer().scalingFactor();
ASSERT(scalingFactor);
float baseline = renderer().scaledFont().metricsOfPrimaryFont().ascent() / scalingFactor;
AffineTransform fragmentTransform;
unsigned textFragmentsSize = m_textFragments.size();
for (unsigned i = 0; i < textFragmentsSize; ++i) {
const SVGTextFragment& fragment = m_textFragments.at(i);
FloatRect fragmentRect(fragment.x, fragment.y - baseline, fragment.width, fragment.height);
fragment.buildFragmentTransform(fragmentTransform);
if (!fragmentTransform.isIdentity())
fragmentRect = fragmentTransform.mapRect(fragmentRect);
textRect.unite(fragmentRect);
}
return textRect;
}
void SVGInlineTextBox::setTextFragments(Vector<SVGTextFragment>&& fragments)
{
m_textFragments = WTFMove(fragments);
}
} // namespace WebCore
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