glut_2d.h

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/*
 * glut_2d.h
 *
 * Copyright (C) 2008,2010  Thomas A. Vaughan
 * All rights reserved.
 *
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the <organization> nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THOMAS A. VAUGHAN ''AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THOMAS A. VAUGHAN BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *
 * Helper methods for dealing with 2D rendering.
 */

#ifndef WAVE_GLUT_GLUT_2D_H__
#define WAVE_GLUT_GLUT_2D_H__

// includes --------------------------------------------------------------------
#include "wave-glut.h"


namespace glut {


/// \ingroup glut
/*@{*/

////////////////////////////////////////////////////////////////////////////////
//
//      helper methods
//
////////////////////////////////////////////////////////////////////////////////

/// switches to 2D drawing.  NOTE: for historical reasons, I don't follow the
///     usual OpenGL coordinate conventions here.  In 2D coordinates, positive Y
///     down, not up.  y=0 is the top of the screen.  (OpenGL is flipped:
///     positive Y is up).  So be aware when 2D drawing.
void push2D(IN int screenWidth, IN int screenHeight);

/// restores 3D drawing (make sure to call this after calling push2D()!).
void pop2D(void);


void drawCursor(IN int x, IN int y);


};      // glut namespace

#endif  // WAVE_GLUT_GLUT_2D_H__