Kukatz 3D  0.1
Török Attila szakdolgozata
projects/Kukatz 3D/src/guiimage.cpp
00001 /*
00002  * guiimage.cpp - Kukatz 3D
00003  * Copyright (c) 2012 - 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 "guiimage.hpp"
00026 
00027 #include <iostream>
00028 #include "resourcemanager.hpp"
00029 
00030 GUIImage::GUIImage(const std::string& tex):
00031         texture_id(tex), texture_ptr(ResourceManager::instance().textures[tex]),
00032         mode(STRETCH), image_scale(1.0f), color(sf::Color::White)
00033 {
00034         aspect_ratio = (float)texture_ptr->get_width() / (float)texture_ptr->get_height();
00035         
00036         display_list = glGenLists(1);
00037         make_list();
00038 }
00039 
00040 GUIImage::GUIImage(const std::string& tex, float s):
00041         texture_id(tex), texture_ptr(ResourceManager::instance().textures[tex]),
00042         mode(TILE), image_scale(s), color(sf::Color::White)
00043 {
00044         aspect_ratio = (float)texture_ptr->get_width() / (float)texture_ptr->get_height();
00045         
00046         display_list = glGenLists(1);
00047         make_list();
00048 }
00049 
00050 GUIImage::GUIImage(const std::string& tex, const sf::FloatRect& rect):
00051         texture_id(tex), texture_ptr(ResourceManager::instance().textures[tex]),
00052         mode(RECTANGLE), rectangle(rect), image_scale(1.0f), color(sf::Color::White)
00053 {
00054         aspect_ratio = (float)texture_ptr->get_width() / (float)texture_ptr->get_height();
00055         
00056         display_list = glGenLists(1);
00057         make_list();
00058 }
00059 
00060 void GUIImage::make_list()
00061 {
00062         glNewList(display_list, GL_COMPILE);
00063         glBegin(GL_QUADS);
00064         
00065         glTexCoord2i(0, 0);
00066         glVertex2i(0, 0);
00067         glTexCoord2i(1, 0);
00068         glVertex2i(1, 0);
00069         glTexCoord2i(1, 1);
00070         glVertex2i(1, 1);
00071         glTexCoord2i(0, 1);
00072         glVertex2i(0, 1);
00073         
00074         glEnd();
00075         glEndList();
00076 }
00077 
00078 void GUIImage::set_mode(const ImageMode& m)
00079 {
00080         if (m != mode)
00081         {
00082                 mode = m;
00083                 make_list();
00084         }
00085 }
00086 
00087 GUIImage::ImageMode GUIImage::get_mode()
00088 {
00089         return mode;
00090 }
00091 
00092 void GUIImage::render()
00093 {
00094         if (visible)
00095         {
00096                 ResourceManager::instance().use_program(0);
00097                 glDisable(GL_DEPTH_TEST);
00098                 texture_ptr->bind();
00099                 
00100                 glPushMatrix();
00101                 glScalef(size.x, size.y, 1.0f);
00102                 
00103                 glMatrixMode(GL_TEXTURE);
00104                 glPushMatrix();
00105                 glLoadIdentity();
00106                 glScalef(1.0f / image_scale, 1.0f / image_scale, 1.0f);
00107                 
00108                 glColor4ub(color.r, color.g, color.b, color.a);
00109                 glCallList(display_list);
00110                 glColor4ub(255, 255, 255, 255);
00111                 
00112                 glPopMatrix();
00113                 
00114                 glMatrixMode(GL_MODELVIEW);
00115                 glPopMatrix();
00116                 
00117                 glEnable(GL_DEPTH_TEST);
00118         }
00119 }
00120 
00121 GUIImage::~GUIImage()
00122 {
00123         glDeleteLists(display_list, 1);
00124 }
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