Initial Contribution

1 files changed, 121 insertions, 0 deletions

diff --git a/WebCore/platform/graphics/android/FontDataAndroid.cpp b/WebCore/platform/graphics/android/FontDataAndroid.cpp
new file mode 100644
index 0000000..a90f536
--- /dev/null
+++ b/WebCore/platform/graphics/android/FontDataAndroid.cpp
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2006 Apple Computer, 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:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer. 
+ * 2.  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. 
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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 "Font.h"
+#include "FontCache.h"
+#include "SimpleFontData.h"
+#include "FloatRect.h"
+#include "FontDescription.h"
+
+#include "SkPaint.h"
+#include "SkTypeface.h"
+#include "SkTime.h"
+
+namespace WebCore {
+
+void SimpleFontData::platformInit()
+{
+    SkPaint  paint;
+    SkPaint::FontMetrics metrics;
+    
+    m_font.setupPaint(&paint);
+    (void)paint.getFontMetrics(&metrics);
+
+    // use ceil instead of round to favor descent, given a lot of accidental
+    // clipping of descenders (e.g. 14pt 'g') in textedit fields
+    int d = SkScalarCeil(metrics.fDescent);
+    int s = SkScalarRound(metrics.fDescent - metrics.fAscent);
+    int a = s - d;
+
+    m_ascent = a;
+    m_descent = d;
+    m_xHeight = SkScalarToFloat(-metrics.fAscent) * 0.56f;   // hack I stole from the window's port
+    m_lineSpacing = a + d;
+    m_lineGap = SkScalarRound(metrics.fLeading);
+}
+
+void SimpleFontData::platformDestroy()
+{
+    delete m_smallCapsFontData;
+}
+
+SimpleFontData* SimpleFontData::smallCapsFontData(const FontDescription& fontDescription) const
+{
+    if (!m_smallCapsFontData) {
+        m_smallCapsFontData = new SimpleFontData(FontPlatformData(m_font, fontDescription.computedSize() * 0.7f));
+    }
+    return m_smallCapsFontData;
+}
+
+#define kMaxBufferCount     64
+
+bool SimpleFontData::containsCharacters(const UChar* characters, int length) const
+{
+    SkPaint     paint;
+    uint16_t    glyphs[kMaxBufferCount];
+
+    m_font.setupPaint(&paint);
+    paint.setTextEncoding(SkPaint::kUTF16_TextEncoding);
+
+    while (length > 0) {
+        int n = SkMin32(length, SK_ARRAY_COUNT(glyphs));
+        
+        int count = paint.textToGlyphs(characters, n << 1, glyphs);
+        for (int i = 0; i < count; i++) {
+            if (0 == glyphs[i]) {
+                return false;       // missing glyph
+            }
+        }
+        
+        characters += n;
+        length -= n;
+    }
+    return true;
+}
+
+void SimpleFontData::determinePitch()
+{
+    m_treatAsFixedPitch = false;
+}
+
+float SimpleFontData::platformWidthForGlyph(Glyph glyph) const
+{
+    SkASSERT(sizeof(glyph) == 2);   // compile-time assert
+
+    SkPaint  paint;
+
+    m_font.setupPaint(&paint);
+
+    paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
+    SkScalar width = paint.measureText(&glyph, 2);
+    
+    return SkScalarToFloat(width);
+}
+
+}