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Diffstat (limited to 'include/minikin/MinikinFontFreeType.h')
-rw-r--r-- | include/minikin/MinikinFontFreeType.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/include/minikin/MinikinFontFreeType.h b/include/minikin/MinikinFontFreeType.h new file mode 100644 index 0000000..7051831 --- /dev/null +++ b/include/minikin/MinikinFontFreeType.h @@ -0,0 +1,71 @@ +/* + * Copyright (C) 2013 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef MINIKIN_FONT_FREETYPE_H +#define MINIKIN_FONT_FREETYPE_H + +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_TRUETYPE_TABLES_H + +#include <minikin/MinikinFont.h> + +// An abstraction for platform fonts, allowing Minikin to be used with +// multiple actual implementations of fonts. + +namespace android { + +struct GlyphBitmap { + uint8_t *buffer; + int width; + int height; + int left; + int top; +}; + +class MinikinFontFreeType : public MinikinFont { +public: + explicit MinikinFontFreeType(FT_Face typeface); + + ~MinikinFontFreeType(); + + bool GetGlyph(uint32_t codepoint, uint32_t *glyph) const; + + float GetHorizontalAdvance(uint32_t glyph_id, + const MinikinPaint &paint) const; + + // If buf is NULL, just update size + bool GetTable(uint32_t tag, uint8_t *buf, size_t *size); + + int32_t GetUniqueId() const; + + // Not a virtual method, as the protocol to access rendered + // glyph bitmaps is probably different depending on the + // backend. + bool Render(uint32_t glyph_id, + const MinikinPaint &paint, GlyphBitmap *result); + + MinikinFontFreeType* GetFreeType(); + +private: + FT_Face mTypeface; + int32_t mUniqueId; + static int32_t sIdCounter; +}; + +} // namespace android + +#endif // MINIKIN_FONT_FREETYPE_H |