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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_FAMILY_H
#define MINIKIN_FONT_FAMILY_H
#include <vector>
#include <minikin/MinikinRefCounted.h>
namespace android {
// FontStyle represents all style information needed to select an actual font
// from a collection. The implementation is packed into a single 32-bit word
// so it can be efficiently copied, embedded in other objects, etc.
class FontStyle {
public:
FontStyle(int weight = 4, bool italic = false) {
bits = (weight & kWeightMask) | (italic ? kItalicMask : 0);
}
int getWeight() { return bits & kWeightMask; }
bool getItalic() { return (bits & kItalicMask) != 0; }
bool operator==(const FontStyle other) { return bits == other.bits; }
// TODO: language, variant
private:
static const int kWeightMask = 0xf;
static const int kItalicMask = 16;
uint32_t bits;
};
class FontFamily : public MinikinRefCounted {
public:
~FontFamily();
// Add font to family, extracting style information from the font
bool addFont(MinikinFont* typeface);
void addFont(MinikinFont* typeface, FontStyle style);
MinikinFont* getClosestMatch(FontStyle style) const;
// API's for enumerating the fonts in a family. These don't guarantee any particular order
size_t getNumFonts() const;
MinikinFont* getFont(size_t index) const;
FontStyle getStyle(size_t index) const;
private:
class Font {
public:
Font(MinikinFont* typeface, FontStyle style) :
typeface(typeface), style(style) { }
MinikinFont* typeface;
FontStyle style;
};
std::vector<Font> mFonts;
};
} // namespace android
#endif // MINIKIN_FONT_FAMILY_H
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