1 files changed, 126 insertions, 0 deletions
diff --git a/WebKit/chromium/src/WebFontImpl.cpp b/WebKit/chromium/src/WebFontImpl.cpp
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+++ b/WebKit/chromium/src/WebFontImpl.cpp
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+/*
+ * Copyright (C) 2010 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "WebFontImpl.h"
+
+#include "Font.h"
+#include "FontDescription.h"
+#include "GraphicsContext.h"
+#include "PlatformContextSkia.h"
+#include "WebFloatPoint.h"
+#include "WebFloatRect.h"
+#include "WebFontDescription.h"
+#include "WebRect.h"
+#include "WebTextRun.h"
+
+using namespace WebCore;
+
+namespace WebKit {
+
+WebFont* WebFont::create(const WebFontDescription& desc)
+{
+    return new WebFontImpl(desc, desc.letterSpacing, desc.wordSpacing);
+}
+
+WebFontImpl::WebFontImpl(const FontDescription& desc, short letterSpacing, short wordSpacing)
+    : m_font(desc, letterSpacing, wordSpacing)
+{
+    m_font.update(0);
+}
+
+WebFontDescription WebFontImpl::fontDescription() const
+{
+    return WebFontDescription(m_font.fontDescription(), m_font.letterSpacing(), m_font.wordSpacing());
+}
+
+int WebFontImpl::ascent() const
+{
+    return m_font.ascent();
+}
+
+int WebFontImpl::descent() const
+{
+    return m_font.descent();
+}
+
+int WebFontImpl::height() const
+{
+    return m_font.height();
+}
+
+int WebFontImpl::lineSpacing() const
+{
+    return m_font.lineSpacing();
+}
+
+float WebFontImpl::xHeight() const
+{
+    return m_font.xHeight();
+}
+
+void WebFontImpl::drawText(WebCanvas* canvas, const WebTextRun& run, const WebFloatPoint& leftBaseline,
+                           WebColor color, const WebRect& clip, bool canvasIsOpaque,
+                           int from, int to) const
+{
+    // FIXME hook canvasIsOpaque up to the platform-specific indicators for
+    // whether subpixel AA can be used for this draw. On Windows, this is
+    // PlatformContextSkia::setDrawingToImageBuffer.
+#if WEBKIT_USING_CG
+    GraphicsContext gc(canvas);
+#elif WEBKIT_USING_SKIA
+    PlatformContextSkia context(canvas);
+    // PlatformGraphicsContext is actually a pointer to PlatformContextSkia.
+    GraphicsContext gc(reinterpret_cast<PlatformGraphicsContext*>(&context));
+#else
+    notImplemented();
+#endif
+
+    gc.setFillColor(color, DeviceColorSpace);
+    gc.clip(WebCore::FloatRect(clip));
+    m_font.drawText(&gc, run, leftBaseline, from, to);
+}
+
+int WebFontImpl::calculateWidth(const WebTextRun& run) const
+{
+    return m_font.width(run, 0);
+}
+
+int WebFontImpl::offsetForPosition(const WebTextRun& run, float position) const
+{
+    return m_font.offsetForPosition(run, position, true);
+}
+
+WebFloatRect WebFontImpl::selectionRectForText(const WebTextRun& run, const WebFloatPoint& leftBaseline, int height, int from, int to) const
+{
+    return m_font.selectionRectForText(run, leftBaseline, height, from, to);
+}
+
+} // namespace WebKit