Visualization Library v1.0.3A lightweight C++ OpenGL middleware for 2D/3D graphics |
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00001 /**************************************************************************************/ 00002 /* */ 00003 /* Visualization Library */ 00004 /* http://visualizationlibrary.org */ 00005 /* */ 00006 /* Copyright (c) 2005-2010, Michele Bosi */ 00007 /* All rights reserved. */ 00008 /* */ 00009 /* Redistribution and use in source and binary forms, with or without modification, */ 00010 /* are permitted provided that the following conditions are met: */ 00011 /* */ 00012 /* - Redistributions of source code must retain the above copyright notice, this */ 00013 /* list of conditions and the following disclaimer. */ 00014 /* */ 00015 /* - Redistributions in binary form must reproduce the above copyright notice, this */ 00016 /* list of conditions and the following disclaimer in the documentation and/or */ 00017 /* other materials provided with the distribution. */ 00018 /* */ 00019 /* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND */ 00020 /* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED */ 00021 /* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */ 00022 /* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR */ 00023 /* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES */ 00024 /* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; */ 00025 /* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON */ 00026 /* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */ 00027 /* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS */ 00028 /* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ 00029 /* */ 00030 /**************************************************************************************/ 00031 00032 #include <vlGraphics/FontManager.hpp> 00033 #include <vlCore/Log.hpp> 00034 #include <algorithm> 00035 00036 #include "ft2build.h" 00037 #include FT_FREETYPE_H 00038 00039 using namespace vl; 00040 00041 //----------------------------------------------------------------------------- 00042 FontManager::FontManager(void* free_type_library) 00043 { 00044 mFreeTypeLibrary = free_type_library; 00045 if (!free_type_library) 00046 { 00047 FT_Library freetype = NULL; 00048 FT_Error error = FT_Init_FreeType( &freetype ); 00049 mFreeTypeLibrary = freetype; 00050 if ( error ) 00051 { 00052 Log::error("FontManager::FontManager(): an error occurred during FreeType library initialization!\n"); 00053 VL_TRAP() 00054 } 00055 } 00056 } 00057 //----------------------------------------------------------------------------- 00058 FontManager::~FontManager() 00059 { 00060 releaseAllFonts(); 00061 if (mFreeTypeLibrary) 00062 { 00063 FT_Done_FreeType( (FT_Library)mFreeTypeLibrary ); 00064 mFreeTypeLibrary = NULL; 00065 } 00066 } 00067 //----------------------------------------------------------------------------- 00068 Font* FontManager::acquireFont(const String& path, int size, bool smooth) 00069 { 00070 ref<Font> font; 00071 for(unsigned i=0; !font && i<mFonts.size(); ++i) 00072 if (fonts()[i]->filePath() == path && fonts()[i]->size() == size && fonts()[i]->smooth() == smooth) 00073 font = fonts()[i]; 00074 00075 if (!font) 00076 { 00077 font = new Font(this); 00078 font->loadFont(path); 00079 font->setSize(size); 00080 font->setSmooth(smooth); 00081 mFonts.push_back( font ); 00082 } 00083 00084 return font.get(); 00085 } 00086 //----------------------------------------------------------------------------- 00087 void FontManager::releaseFont(Font* font) 00088 { 00089 std::vector< ref<Font> >::iterator it = std::find(mFonts.begin(), mFonts.end(), font); 00090 if (it != mFonts.end()) 00091 mFonts.erase(it); 00092 } 00093 //----------------------------------------------------------------------------- 00094 void FontManager::releaseAllFonts() 00095 { 00096 for(unsigned i=0; i<mFonts.size(); ++i) 00097 mFonts[i]->releaseFreeTypeData(); 00098 } 00099 //-----------------------------------------------------------------------------