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authorenne@chromium.org <enne@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2012-10-12 22:43:41 +0000
committerenne@chromium.org <enne@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2012-10-12 22:43:41 +0000
commitcd57cc5a246367c2558fefa04ae9eca8f4d545d2 (patch)
treea2235045e9c5e4ff028d641b76f5d01aa5461b26 /cc/font_atlas.cc
parent3fe7ba055be580443445895c0ee01ada3b628487 (diff)
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[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')
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1 files changed, 73 insertions, 0 deletions
diff --git a/cc/font_atlas.cc b/cc/font_atlas.cc
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+++ b/cc/font_atlas.cc
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+// 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)