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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_gl_helper.h
* @brief Helper functions for creating OpenGL data and structures out of XML data.
*
*/
#ifndef __GC_GL_HELPER_H__
#define __GC_GL_HELPER_H__
#include <string>
using namespace std;
#define EPSILON 1E-6 // The distance two float values can have at most be still considered as being the same.
// Find a color by name.
bool ColorByName(string Name, GLubyte* Color);
// Find the given primitive and return its index in the Primitives array (for use e.g. in switch statements).
int FindPrimitive(xmlChar* Name);
// Reads the attribute with the given name (if it exists) and converts it to a float value.
bool GetFloatAttribute(xmlNodePtr Element, const char* Name, double& Value);
// Reads the attribute with the given name and treats it as color value.
bool ConvertColor(xmlNodePtr Element, const char* Name, const char* OpacityName, GLubyte* Color);
// Parses the given XML element for SVG drawing commands.
GLuint ReadTemplateDefinition(xmlNodePtr XML);
// Parses the given XML element for a font definition.
void ParseFontEntry(xmlNodePtr XML);
// Parses the given XML element for a texture definition.
void ParseTextureEntry(xmlNodePtr XML);
#endif // __GC_GL_HELPER_H__
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