Kukatz 3D  0.1
Török Attila szakdolgozata
projects/Kukatz 3D/src/viewport.cpp
00001 /*
00002  * viewport.cpp - Kukatz 3D
00003  * Copyright (c) 2011 - TÖRÖK Attila (torokati44@gmail.com)
00004  *
00005  * This software is provided 'as-is', without any express or implied
00006  * warranty. In no event will the authors be held liable for any damages
00007  * arising from the use of this software.
00008  *
00009  * Permission is granted to anyone to use this software for any purpose,
00010  * including commercial applications, and to alter it and redistribute it
00011  * freely, subject to the following restrictions:
00012  *
00013  *       1. The origin of this software must not be misrepresented; you must not
00014  *                      claim that you wrote the original software. If you use this software
00015  *                      in a product, an acknowledgment in the product documentation would be
00016  *                      appreciated but is not required.
00017  *
00018  *       2. Altered source versions must be plainly marked as such, and must not be
00019  *                      misrepresented as being the original software.
00020  *
00021  *       3. This notice may not be removed or altered from any source
00022  *                      distribution.
00023  */
00024 
00025 #include "viewport.hpp"
00026 
00027 #include "opengl.hpp"
00028 
00029 Viewport::Viewport(const sf::Vector2i& s, float zn, float zf):
00030         offset(0, 0), size(s), z_near(zn), z_far(zf)
00031 {
00032         
00033 }
00034 
00035 Viewport::Viewport(int sx, int sy, float zn, float zf):
00036         offset(0, 0), size(sx, sy), z_near(zn), z_far(zf)
00037 {
00038         
00039 }
00040 
00041 Viewport::Viewport(const sf::Vector2i& o, const sf::Vector2i& s, float zn, float zf):
00042         offset(o), size(s), z_near(zn), z_far(zf)
00043 {
00044         
00045 }
00046 
00047 Viewport::Viewport(int ox, int oy, int sx, int sy, float zn, float zf):
00048         offset(ox, oy), size(sx, sy), z_near(zn), z_far(zf)
00049 {
00050         
00051 }
00052 
00053 void Viewport::set_view(const sf::Vector2i& o, const sf::Vector2i& s)
00054 {
00055         offset = o;
00056         size = s;
00057 }
00058 
00059 void Viewport::set_view(int ox, int oy, int sx, int sy)
00060 {
00061         offset.x = ox;
00062         offset.y = oy;
00063         size.x = sx;
00064         size.y = sy;
00065 }
00066 
00067 void Viewport::look_2d()
00068 {
00069         glMatrixMode(GL_PROJECTION);
00070         glLoadIdentity();
00071         glOrtho(0, size.x, 0, size.y,
00072                 z_near, z_far);
00073         
00074         glMatrixMode(GL_MODELVIEW);
00075         glLoadIdentity();
00076         
00077         glViewport(offset.x, offset.y, size.x, size.y);
00078 }
00079 
00080 Viewport::~Viewport()
00081 {
00082         
00083 }
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