# Visualization Library

A lightweight C++ OpenGL middleware for 2D/3D graphics

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# D:/VL/BuildSystem/VL_DISTRO/Visualization_Library_SDK/src/vlGraphics/FontManager.cpp

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    00001 /**************************************************************************************/
    00002 /*                                                                                    */
    00003 /*  Visualization Library                                                             */
    00004 /*  http://www.visualizationlibrary.com                                               */
    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()[0];
    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 //-----------------------------------------------------------------------------

Visualization Library v2011.05.1142 Reference Documentation
Copyright 2005-2011 Michele Bosi. All rights reserved.
Updated on Thu May 26 2011 22:51:23.
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