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5ce2884e26
I wrote a little script to do this. I'll attach it to the bug in case Blink wants it. R=abarth@chromium.org BUG=435361 Review URL: https://codereview.chromium.org/747663002
128 lines
4.0 KiB
C++
128 lines
4.0 KiB
C++
/*
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* Copyright (C) 2010 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "web/WebFontImpl.h"
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#include "platform/fonts/FontCache.h"
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#include "platform/fonts/FontDescription.h"
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#include "platform/graphics/GraphicsContext.h"
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#include "platform/text/TextRun.h"
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#include "public/platform/WebFloatPoint.h"
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#include "public/platform/WebFloatRect.h"
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#include "public/platform/WebRect.h"
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#include "public/web/WebFontDescription.h"
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#include "public/web/WebTextRun.h"
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#include "skia/ext/platform_canvas.h"
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namespace blink {
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WebFont* WebFont::create(const WebFontDescription& desc)
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{
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return new WebFontImpl(desc);
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}
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WebFontImpl::WebFontImpl(const FontDescription& desc)
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: m_font(desc)
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{
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m_font.update(nullptr);
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}
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WebFontDescription WebFontImpl::fontDescription() const
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{
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return WebFontDescription(m_font.fontDescription());
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}
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int WebFontImpl::ascent() const
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{
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return m_font.fontMetrics().ascent();
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}
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int WebFontImpl::descent() const
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{
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return m_font.fontMetrics().descent();
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}
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int WebFontImpl::height() const
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{
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return m_font.fontMetrics().height();
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}
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int WebFontImpl::lineSpacing() const
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{
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return m_font.fontMetrics().lineSpacing();
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}
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float WebFontImpl::xHeight() const
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{
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return m_font.fontMetrics().xHeight();
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}
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void WebFontImpl::drawText(WebCanvas* canvas, const WebTextRun& run, const WebFloatPoint& leftBaseline,
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WebColor color, const WebRect& clip, bool canvasIsOpaque,
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int from, int to) const
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{
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FontCachePurgePreventer fontCachePurgePreventer;
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FloatRect textClipRect(clip);
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TextRun textRun(run);
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TextRunPaintInfo runInfo(textRun);
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runInfo.from = from;
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runInfo.to = to == -1 ? textRun.length() : to;
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runInfo.bounds = textClipRect;
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GraphicsContext gc(canvas);
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gc.save();
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gc.setCertainlyOpaque(canvasIsOpaque);
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gc.setFillColor(color);
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gc.clip(textClipRect);
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m_font.drawText(&gc, runInfo, leftBaseline);
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gc.restore();
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}
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int WebFontImpl::calculateWidth(const WebTextRun& run) const
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{
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FontCachePurgePreventer fontCachePurgePreventer;
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return m_font.width(run, 0);
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}
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int WebFontImpl::offsetForPosition(const WebTextRun& run, float position) const
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{
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FontCachePurgePreventer fontCachePurgePreventer;
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return m_font.offsetForPosition(run, position, true);
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}
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WebFloatRect WebFontImpl::selectionRectForText(const WebTextRun& run, const WebFloatPoint& leftBaseline, int height, int from, int to) const
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{
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FontCachePurgePreventer fontCachePurgePreventer;
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return m_font.selectionRectForText(run, leftBaseline, height, from, to);
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}
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} // namespace blink
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