mirror of
https://github.com/nillerusr/source-engine.git
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130 lines
4.3 KiB
C
130 lines
4.3 KiB
C
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//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//=============================================================================//
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#ifndef FONTMANAGER_H
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#define FONTMANAGER_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include <vgui/VGUI.h>
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#include "vgui_surfacelib/FontAmalgam.h"
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#include "materialsystem/imaterialsystem.h"
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#include "filesystem.h"
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#include "vguifont.h"
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#ifdef LINUX
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#include <ft2build.h>
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#include FT_FREETYPE_H
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typedef void *(*FontDataHelper)( const char *pchFontName, int &size, const char *fontFileName );
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#endif
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#ifdef CreateFont
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#undef CreateFont
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#endif
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using vgui::HFont;
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//-----------------------------------------------------------------------------
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// Purpose: Creates and maintains list of actively used fonts
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//-----------------------------------------------------------------------------
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class CFontManager
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{
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public:
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CFontManager();
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~CFontManager();
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void SetLanguage(const char *language);
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// clears the current font list, frees any resources
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void ClearAllFonts();
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HFont CreateFont();
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bool SetFontGlyphSet(HFont font, const char *windowsFontName, int tall, int weight, int blur, int scanlines, int flags);
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bool SetFontGlyphSet(HFont font, const char *windowsFontName, int tall, int weight, int blur, int scanlines, int flags, int nRangeMin, int nRangeMax);
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bool SetBitmapFontGlyphSet(HFont font, const char *windowsFontName, float scalex, float scaley, int flags);
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void SetFontScale(HFont font, float sx, float sy);
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const char *GetFontName( HFont font );
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const char *GetFontFamilyName( HFont font );
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void GetCharABCwide(HFont font, int ch, int &a, int &b, int &c);
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int GetFontTall(HFont font);
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int GetFontTallRequested(HFont font);
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int GetFontAscent(HFont font, wchar_t wch);
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int GetCharacterWidth(HFont font, int ch);
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bool GetFontUnderlined( HFont font );
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void GetTextSize(HFont font, const wchar_t *text, int &wide, int &tall);
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font_t *GetFontForChar(HFont, wchar_t wch);
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bool IsFontAdditive(HFont font);
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bool IsBitmapFont(HFont font );
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void SetInterfaces( IFileSystem *pFileSystem, IMaterialSystem *pMaterialSystem )
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{
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m_pFileSystem = pFileSystem;
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m_pMaterialSystem = pMaterialSystem;
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}
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IFileSystem *FileSystem() { return m_pFileSystem; }
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IMaterialSystem *MaterialSystem() { return m_pMaterialSystem; }
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#ifdef LINUX
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FT_Library GetFontLibraryHandle() { return library; }
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void SetFontDataHelper( FontDataHelper helper ) { m_pFontDataHelper = helper; }
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#endif
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#if defined( _X360 )
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// secondary cache to speed TTF setup
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bool GetCachedXUIMetrics( const char *pWindowsFontName, int tall, int style, XUIFontMetrics *pFontMetrics, XUICharMetrics charMetrics[256] );
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void SetCachedXUIMetrics( const char *pWindowsFontName, int tall, int style, XUIFontMetrics *pFontMetrics, XUICharMetrics charMetrics[256] );
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#endif
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// used as a hint that intensive TTF operations are finished
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void ClearTemporaryFontCache();
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void GetKernedCharWidth( vgui::HFont font, wchar_t ch, wchar_t chBefore, wchar_t chAfter, float &wide, float &abcA, float &abcC );
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private:
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bool IsFontForeignLanguageCapable(const char *windowsFontName);
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font_t *CreateOrFindWin32Font(const char *windowsFontName, int tall, int weight, int blur, int scanlines, int flags);
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CBitmapFont *CreateOrFindBitmapFont(const char *windowsFontName, float scalex, float scaley, int flags);
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const char *GetFallbackFontName(const char *windowsFontName);
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const char *GetForeignFallbackFontName();
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CUtlVector<CFontAmalgam> m_FontAmalgams;
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CUtlVector<font_t *> m_Win32Fonts;
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#ifdef LINUX
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FT_Library library;
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FontDataHelper m_pFontDataHelper;
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#endif
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char m_szLanguage[64];
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IFileSystem *m_pFileSystem;
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IMaterialSystem *m_pMaterialSystem;
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#if defined( _X360 )
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// These are really bounded by the number of fonts that the game would ever realistically create, so ~100 is expected.
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// Many of these fonts are redundant and the same underlying metrics can be used. This avoid the very expensive TTF font metric lookup.
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struct XUIMetricCache_t
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{
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// the font signature that can change
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CUtlSymbol fontSymbol;
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int tall;
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int style;
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// the metrics
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XUIFontMetrics fontMetrics;
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XUICharMetrics charMetrics[256];
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};
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CUtlVector< XUIMetricCache_t > m_XUIMetricCache;
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#endif
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};
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// singleton accessor
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extern CFontManager &FontManager();
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#endif // FONTMANAGER_H
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