source: orxonox.OLD/orxonox/branches/parenting/src/glmenu_imagescreen.cc @ 3359

/* 
   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: Patrick Boenzli
   co-programmer: 
*/


#include "glmenu_imagescreen.h"
#include "importer/texture.h"

using namespace std;


/**
   \brief standard constructor

   \todo this constructor is not jet implemented - do it
*/
GLMenuImageScreen::GLMenuImageScreen () 
{
   this->setClassName ("GLMenuImageScreen");
}


/**
   \brief standard deconstructor

   \todo this deconstructor is not jet implemented - do it
*/
GLMenuImageScreen::~GLMenuImageScreen () {}


/**
   \brief function to init the screen
*/
void GLMenuImageScreen::init ()
{
  int w = 680;
  int h = 480;

  glViewport(0,0,w,h);
  
  glMatrixMode(GL_PROJECTION);
  glLoadIdentity(); 
  gluPerspective(45.0f,(GLfloat)w/(GLfloat)h, .5f ,150.0f);
  glMatrixMode(GL_MODELVIEW); 

  this->backTex = new Texture();
  this->backTex->loadImage("orx_tex.bmp");

  /* ------------painten */

  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
  glLoadIdentity();
  gluLookAt(0, 0, 6,     0, 0, 0,     0, 1, 0);

  // Bind the texture stored at the zero index of g_Texture[]
  //glBindTexture(GL_TEXTURE_2D, g_Texture[0]);
}


/**
   \brief function to innit screen with all attributes set
   \param name of the background-image file
   \param height of the ImageScreen
   \param width of the Image Screen
   \param x offset from (0, 0)
   \param y offset from (0, 0)

   GLMenu uses its own coordinating system: upper left corner is (0, 0). x-axis is down=height, 
   right axis is right direction (=width)
*/
void GLMenuImageScreen::init (char* backImageName, float height, float width, 
                              float offsetX, float offsetY)
{}


/**
   \brief draws the ImageScreen to the screenbuffer
*/
void GLMenuImageScreen::draw ()
{
  // Display a quad texture to the screen
  glEnable(GL_TEXTURE_2D);
  glBegin(GL_QUADS);
  
  // Display the top left vertice
  glTexCoord2f(0.0f, 1.0f);
  glVertex3f(-2.5, 2.5, 0);
  
  // Display the bottom left vertice
  glTexCoord2f(0.0f, 0.0f);
  glVertex3f(-2.5, -2.5, 0);
  
  // Display the bottom right vertice
  glTexCoord2f(1.0f, 0.0f);
  glVertex3f(2.5, -2.5, 0);
  
  // Display the top right vertice
  glTexCoord2f(1.0f, 1.0f);
  glVertex3f(2.5, 2.5, 0);

  glEnd();
  glEnable(GL_TEXTURE_2D);  

  SDL_GL_SwapBuffers();                    

  delete this->backTex;
  SDL_Delay(1000);
}

 
/** 
    \brief sets the background image name
    \param file name of the backgroun-image
 */
void GLMenuImageScreen::setBackImageName (char* backImageName)
{}


/**
   \brief sets position of the ImageScreen
   \param x offset from (0, 0)
   \param y offset from (0, 0)
*/
void GLMenuImageScreen::setPosition(float offsetX, float offsetY)
{}


/*
  \brief sets size of the ImageScreen
  \param height of the ImageScreen
  \param width of the Image Screen
*/
void GLMenuImageScreen::setSize(float height, float width)
{}