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/* $Id$ */

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/** @file fontcache.h Functions to read fonts from files and cache them. */

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#ifndef FONTCACHE_H

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#define FONTCACHE_H

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#include "gfx_type.h"

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/** Get the SpriteID mapped to the given font size and key */

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SpriteID GetUnicodeGlyph(FontSize size, uint32 key);

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/** Map a SpriteID to the font size and key */

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void SetUnicodeGlyph(FontSize size, uint32 key, SpriteID sprite);

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/** Initialize the glyph map */

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void InitializeUnicodeGlyphMap();

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#ifdef WITH_FREETYPE

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struct FreeTypeSettings {

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	char small_font[MAX_PATH];

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	char medium_font[MAX_PATH];

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	char large_font[MAX_PATH];

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	uint small_size;

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	uint medium_size;

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	uint large_size;

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	bool small_aa;

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	bool medium_aa;

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	bool large_aa;

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};

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extern FreeTypeSettings _freetype;

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void InitFreeType();

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void UninitFreeType();

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const struct Sprite *GetGlyph(FontSize size, uint32 key);

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uint GetGlyphWidth(FontSize size, uint32 key);

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/**

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 * We would like to have a fallback font as the current one

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 * doesn't contain all characters we need.

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 * This function must set all fonts of settings.

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 * @param settings the settings to overwrite the fontname of.

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 * @param language_isocode the language, e.g. en_GB.

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 * @param winlangid the language ID windows style.

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 * @return true if a font has been set, false otherwise.

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 */

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bool SetFallbackFont(FreeTypeSettings *settings, const char *language_isocode, int winlangid);

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#else

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/* Stub for initializiation */

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static inline void InitFreeType() {}

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static inline void UninitFreeType() {}

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/** Get the Sprite for a glyph */

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static inline const Sprite *GetGlyph(FontSize size, uint32 key)

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{

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	SpriteID sprite = GetUnicodeGlyph(size, key);

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	if (sprite == 0) sprite = GetUnicodeGlyph(size, '?');

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	return GetSprite(sprite, ST_FONT);

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}

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/** Get the width of a glyph */

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static inline uint GetGlyphWidth(FontSize size, uint32 key)

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{

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	SpriteID sprite = GetUnicodeGlyph(size, key);

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	if (sprite == 0) sprite = GetUnicodeGlyph(size, '?');

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	return SpriteExists(sprite) ? GetSprite(sprite, ST_FONT)->width + (size != FS_NORMAL) : 0;

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}

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#endif /* WITH_FREETYPE */

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#endif /* FONTCACHE_H */