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author | enne@chromium.org <enne@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2012-10-12 22:43:41 +0000 |
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committer | enne@chromium.org <enne@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2012-10-12 22:43:41 +0000 |
commit | cd57cc5a246367c2558fefa04ae9eca8f4d545d2 (patch) | |
tree | a2235045e9c5e4ff028d641b76f5d01aa5461b26 /cc/font_atlas.cc | |
parent | 3fe7ba055be580443445895c0ee01ada3b628487 (diff) | |
download | chromium_src-cd57cc5a246367c2558fefa04ae9eca8f4d545d2.zip chromium_src-cd57cc5a246367c2558fefa04ae9eca8f4d545d2.tar.gz chromium_src-cd57cc5a246367c2558fefa04ae9eca8f4d545d2.tar.bz2 |
[cc] Rename all cc/ filenames to Chromium style
BUG=155413
Review URL: https://codereview.chromium.org/11122003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@161671 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'cc/font_atlas.cc')
-rw-r--r-- | cc/font_atlas.cc | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/cc/font_atlas.cc b/cc/font_atlas.cc new file mode 100644 index 0000000..8be8b63 --- /dev/null +++ b/cc/font_atlas.cc @@ -0,0 +1,73 @@ +// Copyright 2012 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "config.h" + +#if USE(ACCELERATED_COMPOSITING) +#include "CCFontAtlas.h" + +#include "base/string_split.h" +#include "ui/gfx/point.h" +#include "CCProxy.h" +#include "SkCanvas.h" +#include <vector> + +namespace cc { + +using namespace std; + +CCFontAtlas::CCFontAtlas(SkBitmap bitmap, IntRect asciiToRectTable[128], int fontHeight) + : m_atlas(bitmap) + , m_fontHeight(fontHeight) +{ + for (size_t i = 0; i < 128; ++i) + m_asciiToRectTable[i] = asciiToRectTable[i]; +} + +CCFontAtlas::~CCFontAtlas() +{ +} + +void CCFontAtlas::drawText(SkCanvas* canvas, const SkPaint& paint, const std::string& text, const gfx::Point& destPosition, const IntSize& clip) const +{ + ASSERT(CCProxy::isImplThread()); + + std::vector<std::string> lines; + base::SplitString(text, '\n', &lines); + + gfx::Point position = destPosition; + for (size_t i = 0; i < lines.size(); ++i) { + drawOneLineOfTextInternal(canvas, paint, lines[i], position); + position.set_y(position.y() + m_fontHeight); + if (position.y() > clip.height()) + return; + } +} + +void CCFontAtlas::drawOneLineOfTextInternal(SkCanvas* canvas, const SkPaint& paint, const std::string& textLine, const gfx::Point& destPosition) const +{ + ASSERT(CCProxy::isImplThread()); + + gfx::Point position = destPosition; + for (unsigned i = 0; i < textLine.length(); ++i) { + // If the ASCII code is out of bounds, then index 0 is used, which is just a plain rectangle glyph. + int asciiIndex = (textLine[i] < 128) ? textLine[i] : 0; + IntRect glyphBounds = m_asciiToRectTable[asciiIndex]; + SkIRect source = SkIRect::MakeXYWH(glyphBounds.x(), glyphBounds.y(), glyphBounds.width(), glyphBounds.height()); + canvas->drawBitmapRect(m_atlas, &source, SkRect::MakeXYWH(position.x(), position.y(), glyphBounds.width(), glyphBounds.height()), &paint); + position.set_x(position.x() + glyphBounds.width()); + } +} + +void CCFontAtlas::drawDebugAtlas(SkCanvas* canvas, const gfx::Point& destPosition) const +{ + ASSERT(CCProxy::isImplThread()); + + SkIRect source = SkIRect::MakeWH(m_atlas.width(), m_atlas.height()); + canvas->drawBitmapRect(m_atlas, &source, SkRect::MakeXYWH(destPosition.x(), destPosition.y(), m_atlas.width(), m_atlas.height())); +} + +} // namespace cc + +#endif // USE(ACCELERATED_COMPOSITING) |