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164 lines
4.2 KiB
C++
164 lines
4.2 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef NL_FONT_MANAGER_H
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#define NL_FONT_MANAGER_H
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#include "nel/misc/types_nl.h"
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#include "nel/misc/smart_ptr.h"
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#include "nel/3d/texture.h"
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#include "nel/3d/material.h"
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#include "nel/3d/texture_font.h"
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#include <map>
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#include <list>
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#include <functional>
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namespace NL3D {
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class CFontGenerator;
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struct CComputedString;
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/**
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* Font manager
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* The font manager manages CMaterial pointers through a list
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* of CSmartPtr. When the user asks for the texture font representing
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* a character(font/size), it generates and stores this pointer in the list.
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* If this character has already been generated, and lies in the list,
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* it increments its reference count.
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* If the memory used by generated textures exceeds the max memory,
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* then the useless character/pointer is erased from the list.
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* Max memory is set to 0 by default, so this value should be set to non-zero
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* before generating textures to prevent immediate memory deletion.
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* \author Stephane Coutelas
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* \author Nevrax France
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* \date 2000
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*/
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class CFontManager
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{
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uint32 _MemSize;
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uint32 _MaxMemory;
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uint32 _NbChar;
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CSmartPtr<CMaterial> _MatFont;
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CSmartPtr<CTextureFont> _TexFont;
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public:
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/**
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* Default constructor
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*/
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CFontManager()
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{
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_MemSize = 0;
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_MaxMemory = 1000000;
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_NbChar = 0;
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_MatFont = NULL;
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_TexFont = NULL;
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}
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/**
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* define maximum memory allowed
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* \param maximum memory
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*/
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void setMaxMemory(uint32 mem) { _MaxMemory = mem; }
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/**
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* gives maximum memory allowed
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* \return maximum memory
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*/
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uint32 getMaxMemory() const { return _MaxMemory; }
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/**
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* manages fonts in memory using CSmartPtr
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* \param character descriptor
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* \return CSmartPtr to a font texture
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*/
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CMaterial* getFontMaterial();
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/**
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* Compute primitive blocks and materials of each character of
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* the string.
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* \param s string to compute
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* \param fontGen font generator
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* \param color primitive blocks color
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* \param fontSize font size
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* \param desc display descriptor (screen size, font ratio)
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* \param output computed string
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* \param keep800x600Ratio true if you want that CFontManager look at Driver window size, and resize fontSize so it keeps same size...
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*/
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void computeString (const std::string& s,
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CFontGenerator *fontGen,
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const NLMISC::CRGBA &color,
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uint32 fontSize,
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IDriver *driver,
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CComputedString& output,
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bool keep800x600Ratio= true);
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/**
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* Same as computeString but works with a unicode string (ucstring)
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*/
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void computeString (const ucstring &s,
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CFontGenerator *fontGen,
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const NLMISC::CRGBA &color,
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uint32 fontSize,
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IDriver *driver,
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CComputedString &output,
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bool keep800x600Ratio= true);
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/**
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* Same as computeString but do not make vertex buffers and primitives
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*/
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void computeStringInfo (const ucstring &s,
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CFontGenerator *fontGen,
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const NLMISC::CRGBA &color,
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uint32 fontSize,
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IDriver *driver,
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CComputedString &output,
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bool keep800x600Ratio= true);
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/**
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* return a string given information about the cache
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*/
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std::string getCacheInformation() const;
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void dumpCache (const char *filename)
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{
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_TexFont->dumpTextureFont (filename);
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}
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/**
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* invalidate the texture when the text context has been modified
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*/
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void invalidate();
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};
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} // NL3D
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#endif // NL_FONT_MANAGER_H
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/* End of font_manager.h */
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