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/*
* 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;
void GetBounds(MinikinRect* bounds, 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
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