Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 186 insertions, 0 deletions

diff --git a/Source/WebCore/platform/graphics/cocoa/FontPlatformDataCocoa.mm b/Source/WebCore/platform/graphics/cocoa/FontPlatformDataCocoa.mm
new file mode 100644
index 0000000..8dacbe3
--- /dev/null
+++ b/Source/WebCore/platform/graphics/cocoa/FontPlatformDataCocoa.mm
@@ -0,0 +1,186 @@
+/*
+ * This file is part of the internal font implementation.
+ *
+ * Copyright (C) 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
+ * Copyright (c) 2010 Google Inc. All rights reserved.
+ *
+ * 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.
+ *
+ */
+
+#import "config.h"
+#import "FontPlatformData.h"
+
+#import "PlatformString.h"
+#import "WebCoreSystemInterface.h"
+#import <AppKit/NSFont.h>
+
+namespace WebCore {
+
+#if PLATFORM(MAC)
+void FontPlatformData::loadFont(NSFont* nsFont, float, NSFont*& outNSFont, CGFontRef& cgFont)
+{
+    outNSFont = nsFont;
+#ifndef BUILDING_ON_TIGER
+    cgFont = CTFontCopyGraphicsFont(toCTFontRef(nsFont), 0);
+#else
+    cgFont = wkGetCGFontFromNSFont(nsFont);
+#endif
+}
+#endif  // PLATFORM(MAC)
+
+FontPlatformData::FontPlatformData(NSFont *nsFont, float size, bool syntheticBold, bool syntheticOblique, FontOrientation orientation)
+    : m_syntheticBold(syntheticBold)
+    , m_syntheticOblique(syntheticOblique)
+    , m_size(size)
+    , m_font(nsFont)
+#if !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD) && !defined(BUILDING_ON_SNOW_LEOPARD)
+    // FIXME: Chromium: The following code isn't correct for the Chromium port since the sandbox might
+    // have blocked font loading, in which case we'll only have the real loaded font file after the call to loadFont().
+    , m_isColorBitmapFont(CTFontGetSymbolicTraits(toCTFontRef(nsFont)) & kCTFontColorGlyphsTrait)
+#else
+    , m_isColorBitmapFont(false)
+#endif
+{
+    ASSERT_ARG(nsFont, nsFont);
+
+    CGFontRef cgFont = 0;
+    loadFont(nsFont, size, m_font, cgFont);
+
+    m_orientation = orientation;
+
+    if (m_font)
+        CFRetain(m_font);
+
+#ifndef BUILDING_ON_TIGER
+    m_cgFont.adoptCF(cgFont);
+#else
+    m_cgFont = cgFont;
+#endif
+}
+
+FontPlatformData::FontPlatformData(const FontPlatformData& f)
+{
+    m_font = f.m_font && f.m_font != reinterpret_cast<NSFont *>(-1) ? const_cast<NSFont *>(static_cast<const NSFont *>(CFRetain(f.m_font))) : f.m_font;
+
+    m_syntheticBold = f.m_syntheticBold;
+    m_syntheticOblique = f.m_syntheticOblique;
+    m_size = f.m_size;
+    m_cgFont = f.m_cgFont;
+    m_isColorBitmapFont = f.m_isColorBitmapFont;
+    m_orientation = f.m_orientation;
+    m_CTFont = f.m_CTFont;
+#if PLATFORM(CHROMIUM) && OS(DARWIN)
+    m_inMemoryFont = f.m_inMemoryFont;
+#endif
+}
+
+FontPlatformData:: ~FontPlatformData()
+{
+    if (m_font && m_font != reinterpret_cast<NSFont *>(-1))
+        CFRelease(m_font);
+}
+
+const FontPlatformData& FontPlatformData::operator=(const FontPlatformData& f)
+{
+    m_syntheticBold = f.m_syntheticBold;
+    m_syntheticOblique = f.m_syntheticOblique;
+    m_size = f.m_size;
+    m_cgFont = f.m_cgFont;
+    if (m_font == f.m_font)
+        return *this;
+    if (f.m_font && f.m_font != reinterpret_cast<NSFont *>(-1))
+        CFRetain(f.m_font);
+    if (m_font && m_font != reinterpret_cast<NSFont *>(-1))
+        CFRelease(m_font);
+    m_font = f.m_font;
+    m_isColorBitmapFont = f.m_isColorBitmapFont;
+    m_orientation = f.m_orientation;
+    m_CTFont = f.m_CTFont;
+#if PLATFORM(CHROMIUM) && OS(DARWIN)
+    m_inMemoryFont = f.m_inMemoryFont;
+#endif
+    return *this;
+}
+
+void FontPlatformData::setFont(NSFont *font)
+{
+    ASSERT_ARG(font, font);
+    ASSERT(m_font != reinterpret_cast<NSFont *>(-1));
+
+    if (m_font == font)
+        return;
+
+    CFRetain(font);
+    if (m_font)
+        CFRelease(m_font);
+    m_font = font;
+    m_size = [font pointSize];
+    
+    CGFontRef cgFont = 0;
+    NSFont* loadedFont = 0;
+    loadFont(m_font, m_size, loadedFont, cgFont);
+    
+#if PLATFORM(CHROMIUM) && OS(DARWIN)
+    // If loadFont replaced m_font with a fallback font, then release the
+    // previous font to counter the retain above. Then retain the new font.
+    if (loadedFont != m_font) {
+        CFRelease(m_font);
+        CFRetain(loadedFont);
+        m_font = loadedFont;
+    }
+#endif
+    
+#ifndef BUILDING_ON_TIGER
+    m_cgFont.adoptCF(cgFont);
+#else
+    m_cgFont = cgFont;
+#endif
+#if !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD) && !defined(BUILDING_ON_SNOW_LEOPARD)
+    m_isColorBitmapFont = CTFontGetSymbolicTraits(toCTFontRef(m_font)) & kCTFontColorGlyphsTrait;
+#endif
+    m_CTFont = 0;
+}
+
+bool FontPlatformData::roundsGlyphAdvances() const
+{
+    return [m_font renderingMode] == NSFontAntialiasedIntegerAdvancementsRenderingMode;
+}
+
+bool FontPlatformData::allowsLigatures() const
+{
+    return ![[m_font coveredCharacterSet] characterIsMember:'a'];
+}
+
+CTFontRef FontPlatformData::ctFont() const
+{
+    if (m_font)
+        return toCTFontRef(m_font);
+    if (!m_CTFont)
+        m_CTFont.adoptCF(CTFontCreateWithGraphicsFont(m_cgFont.get(), m_size, 0, 0));
+    return m_CTFont.get();
+}
+
+#ifndef NDEBUG
+String FontPlatformData::description() const
+{
+    RetainPtr<CFStringRef> cgFontDescription(AdoptCF, CFCopyDescription(cgFont()));
+    return String(cgFontDescription.get()) + " " + String::number(m_size)
+            + (m_syntheticBold ? " synthetic bold" : "") + (m_syntheticOblique ? " synthetic oblique" : "") + (m_orientation ? " vertical orientation" : "");
+}
+#endif
+
+} // namespace WebCore