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/* Copyright (C) 2004 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/**
* @file myx_gc_font_manager.cpp
* @brief A class that manages shared display lists used for text output
*
*/
#ifndef __GC_FONT_MANAGER_H__
#define __GC_FONT_MANAGER_H__
#include <map>
#include <string>
#include "myx_gc_utilities.h"
using namespace std;
//----------------------------------------------------------------------------------------------------------------------
// Default values for text.
const string DefaultFontFamily("Arial");
const string DefaultFontStyle("normal");
const string DefaultFontWeight("400"); // Must be a string as we get it from an attribute that can contain strings.
const string DefaultFontDecoration("none");
#pragma warning(disable: 4251) // Disable warning about DLL interface for template classes.
typedef struct tagFontEntry
{
GLuint Base; // The base (first) display list.
GLsizei Range; // The number of display lists used for that entry.
} TFontEntry;
typedef map<string, TFontEntry, CStringLessThan> CFontList;
typedef map<string, TFontEntry, CStringLessThan>::iterator CFontListIterator;
typedef pair<string, TFontEntry> CFontListElementPair;
// CFontManager is a helper class for text output in the generic canvas. It maps a description string for a font with attributes to a
// display list. If there is no display for a given font then one is created.
// The font manager is basically a singleton class. We only need one instance of it.
class CFontManager
{
private:
CFontList FFontList; // A mapper of fonts with specific properties to OpenGL display lists.
string FDefaultKey; // The key to the default font entry.
public:
~CFontManager(void);
void Clear(void);
void CreateDefaultEntry(void);
TFontEntry CreateFontEntry(const string& Family, const string& Style, int Weight, const string& Decoration);
string CreateLookupKey(const string& Family, const string& Style, int Weight, const string& Decoration);
GLuint GetFontBase(const string& Family, const string& Style, int Weight, const string& Decoration);
};
//----------------------------------------------------------------------------------------------------------------------
CFontManager* FontManager(); // The one (and only) font manager instance.
#endif // #ifdef __GC_FONT_MANAGER_H__
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