source: orxonox.OLD/branches/resources/src/lib/gui/gl_gui/glgui_bar.cc @ 7938

/*
   orxonox - the future of 3D-vertical-scrollers

   Copyright (C) 2004 orx

   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, or (at your option)
   any later version.

   ### File Specific:
   main-programmer: Benjamin Grauer
   co-programmer: ...
*/

#define DEBUG_SPECIAL_MODULE DEBUG_MODULE_GUI

#include "glgui_bar.h"

using namespace std;

/**
 * @brief standard constructor
*/
GLGuiBar::GLGuiBar ()
{
  this->init();

}


/**
 * @brief standard deconstructor
 */
GLGuiBar::~GLGuiBar()
{

}

/**
 * @brief initializes the GUI-element
 */
void GLGuiBar::init()
{
  this->setClassID(CL_GLGUI_BAR, "GLGuiBar");

  this->frontMat.setDiffuse(1,1,1);

  this->setSize2D(50, 10);

  this->value = 0.5f;
  this->minimum = 0.0f;
  this->maximum = 1.0f;
}

/**
 * @brief draws the GLGuiBar
 */
void GLGuiBar::draw() const
{
  this->startDraw();

  GLGuiWidget::draw();

  this->frontMat.select();
  glBegin(GL_QUADS);

  glTexCoord2f(0,0);
  glVertex2f(3.0, 3.0);
  glTexCoord2f(0, value/maximum);
  glVertex2f(3.0, (this->getSizeY2D()-3.0)* (value/maximum));
  glTexCoord2f(1, value/maximum);
  glVertex2f(this->getSizeX2D()-3.0, (this->getSizeY2D()-3.0) * (value/maximum));
  glTexCoord2f(1,0);
  glVertex2f(this->getSizeX2D()-3.0, 3.0);

  glEnd();
  this->endDraw();
}