Index: include/core/SkFont.h |
diff --git a/include/core/SkFont.h b/include/core/SkFont.h |
new file mode 100644 |
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+++ b/include/core/SkFont.h |
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+/* |
+ * Copyright 2014 Google Inc. |
+ * |
+ * Use of this source code is governed by a BSD-style license that can be |
+ * found in the LICENSE file. |
+ */ |
+ |
+#include "SkRefCnt.h" |
+#include "SkScalar.h" |
+ |
+class SkPaint; |
+class SkTypeface; |
+ |
+enum SkTextEncoding { |
+ kUTF8_SkTextEncoding, |
+ kUTF16_SkTextEncoding, |
+ kUTF32_SkTextEncoding, |
+ kGlyphID_SkTextEncoding, |
+}; |
+ |
+class SkFont : public SkRefCnt { |
+public: |
+ enum Flags { |
+ /** |
+ * Use the system's automatic hinting mechanism to hint the typeface. |
+ * If both bytecode and auto hints are specified, attempt to use the bytecodes first. |
+ * If that fails (e.g. there are no codes), then attempt to autohint. |
+ */ |
+ kEnableAutoHints_Flag = 1 << 0, |
+ |
+ /** |
+ * If the typeface contains explicit bytecodes for hinting, use them. |
+ * If both bytecode and auto hints are specified, attempt to use the bytecodes first; |
+ * if that fails (e.g. there are no codes), then attempt to autohint. |
+ */ |
+ kEnableByteCodeHints_Flag = 1 << 1, |
+ |
+ /** |
+ * Use rounded metric values (e.g. advance). |
+ * If either auto or bytecode hinting was used, apply those results to the metrics of the |
+ * glyphs as well. If no hinting was applied, the metrics will just be rounded to the |
+ * nearest integer. |
+ * |
+ * This applies to calls that return metrics (e.g. measureText) and to drawing the glyphs |
+ * (see SkCanvas drawText and drawPosText). |
+ */ |
+ kUseNonlinearMetrics_Flag = 1 << 2, |
+ |
+ kVertical_Flag = 1 << 3, |
+ kEmbeddedBitmaps_Flag = 1 << 4, |
+ kGenA8FromLCD_Flag = 1 << 5, |
+ kEmbolden_Flag = 1 << 6, |
+ }; |
+ |
+ enum MaskType { |
+ kBW_MaskType, |
+ kA8_MaskType, |
+ kLCD_MaskType, |
+ }; |
+ |
+ SkTypeface* getTypeface() const { return fTypeface; } |
+ SkScalar getSize() const { return fSize; } |
+ SkScalar getScaleX() const { return fScaleX; } |
+ SkScalar getSkewX() const { return fSkewX; } |
+ uint32_t getFlags() const { return fFlags; } |
+ MaskType getMaskType() const { |
+ return (MaskType)fMaskType; |
+ } |
+ |
+ int textToGlyphs(const void* text, size_t byteLength, SkTextEncoding, |
+ uint16_t glyphs[], int maxGlyphCount) const; |
+ |
+ SkScalar measureText(const void* text, size_t byteLength, SkTextEncoding) const; |
+ |
+ static SkFont* Create(SkTypeface*, SkScalar size, MaskType, uint32_t flags); |
+ static SkFont* Create(SkTypeface*, SkScalar size, SkScalar scaleX, SkScalar skewX, |
+ MaskType, uint32_t flags); |
+ static SkFont* Create(const SkFont&, SkScalar newSize); |
+ |
+ static SkFont* Testing_CreateFromPaint(const SkPaint&); |
+ |
+private: |
+ enum { |
+ kAllFlags = 0x3F, |
+ }; |
+ |
+ SkFont(SkTypeface*, SkScalar size, SkScalar scaleX, SkScalar skewX, MaskType, uint32_t flags); |
+ virtual ~SkFont(); |
+ |
+ SkTypeface* fTypeface; |
+ SkScalar fSize; |
+ SkScalar fScaleX; |
+ SkScalar fSkewX; |
+ uint16_t fFlags; |
+ uint8_t fMaskType; |
+ uint8_t fPad; |
+}; |
+ |