src/window.cpp

   1 // Plastic Engine
   2 // Copyright (C) 2008  Albert Brown
   3 //
   4 // This program is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // This program is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 // Window subsystem: establish a buffer to draw in, handle input
  18
  19 #include <stdexcept>
  20 #include <iostream>
  21 #include <string>
  22 #include "SDL.h"
  23
  24 #ifdef HAVE_CONFIG_H
  25     #include "config.hpp"
  26 #else
  27     #define PACKAGE_STRING "Plastic"
  28 #endif
  29
  30 #include "state.hpp"
  31 #include "window.hpp"
  32
  33
  34
  35 window_subsystem::window_subsystem()
  36 {
  37     // TODO: we're going to have to implement commandline arguments and
  38     // some sort of config interface before we can un-hardcode these values
  39     _screen = SDL_SetVideoMode(640, 480, 32, SDL_DOUBLEBUF | SDL_OPENGL);
  40
  41     if(!_screen)
  42     {
  43         // Something went wrong
  44         std::string msg = std::string("SDL failed to set video mode: ")
  45             + SDL_GetError();
  46         throw std::runtime_error(msg.c_str());
  47     }
  48
  49     SDL_WM_SetCaption(PACKAGE_STRING, PACKAGE_STRING);
  50
  51     std::cout << "window_subsystem initialized." << std::endl;
  52 }
  53
  54 window_subsystem::~window_subsystem()
  55 {
  56     // The way SDL is designed, we can't really close the window.
  57     // TODO: maybe it would be possible if we init the SDL video subsystem
  58     //   here (in this class).  This might allow us to close and restart
  59     //   it aswell, although this should not be neccesary (maybe on windows).
  60
  61     std::cout << "window_subsystem shut down." << std::endl;
  62 }
  63
  64 void window_subsystem::tick(state &s)
  65 {
  66     SDL_Event event;
  67     while(SDL_PollEvent(&event))
  68     {
  69         switch(event.type)
  70         {
  71         case SDL_KEYDOWN:
  72             if(event.key.keysym.sym == SDLK_ESCAPE)
  73             {
  74                 std::cout << "Escape" << std::endl;
  75                 s.running = false;
  76             }
  77             break;
  78         case SDL_QUIT:
  79             std::cout << "Close button" << std::endl;
  80             s.running = false;
  81             break;
  82         }
  83     }
  84 }