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#include <iostream>
#include "SDL/SDL.h"
class Window{
public:
int width, height, bpp;
Uint32 flags;
SDL_Surface* _window;
std::string title;
Window(){
width = 0;
height = 0;
bpp = 0;
_window = NULL;
title = " ";
}
void set_title(std::string title){
this->title = title;
SDL_WM_SetCaption(title.c_str(), NULL);
}
bool init(int width, int height, int bpp, Uint32 flags){
this->width = width;
this->height = height;
this->bpp = bpp;
this->flags = flags;
if ((_window = SDL_SetVideoMode(width, height, bpp, flags)) == NULL){
return false;
}
return true;
}
bool resize(int width, int height){
this->width = width;
this->height = height;
if ((_window = SDL_SetVideoMode(width, height, bpp, flags)) == NULL){
return false;
}
return true;
}
};
class Input{
public:
Input(){
}
void on_event(SDL_Event* event){
switch(event->type){
case SDL_KEYDOWN:
key_press(event->key.keysym.sym,
event->key.keysym.mod,
event->key.keysym.unicode);
break;
case SDL_KEYUP:
key_release(event->key.keysym.sym,
event->key.keysym.mod,
event->key.keysym.unicode);
break;
case SDL_MOUSEMOTION:
mouse_motion(event->motion.x, event->motion.y,
event->motion.xrel, event->motion.yrel,
(event->motion.state & SDL_BUTTON(SDL_BUTTON_LEFT)) != 0,
(event->motion.state & SDL_BUTTON(SDL_BUTTON_MIDDLE)) != 0,
(event->motion.state & SDL_BUTTON(SDL_BUTTON_RIGHT)) != 0);
break;
case SDL_MOUSEBUTTONDOWN:
mouse_press(event->button.button, event->button.x, event->button.y);
break;
case SDL_MOUSEBUTTONUP:
mouse_release(event->button.button, event->button.x, event->button.y);
break;
case SDL_ACTIVEEVENT:
focus_change(event->active.state, event->active.gain);
break;
case SDL_VIDEORESIZE:
resize(event->resize.w, event->resize.h);
break;
case SDL_QUIT:
exiting();
break;
}
}
virtual void key_press(SDLKey key, SDLMod mod, Uint16 unicode){}
virtual void key_release(SDLKey key, SDLMod mod, Uint16 unicode){}
virtual void mouse_motion(int x, int y, int relx, int rely, bool left, bool middle, bool right){}
virtual void mouse_press(Uint8 button, int x, int y){}
virtual void mouse_release(Uint8 button, int x, int y){}
virtual void focus_change(Uint8 state, Uint8 gain){}
virtual void resize(int width, int height){}
virtual void exiting(){}
};
class Application : public Input{
public:
bool done;
Window window;
Application(){
done = false;
}
virtual ~Application(){
}
bool init(){
if (SDL_Init(SDL_INIT_EVERYTHING) != 0){
return false;
}
if (window.init(800,600, 32, SDL_SWSURFACE) != true){
return false;
}
window.set_title("SDL window");
return true;
}
void run(){
SDL_Event event;
while( ! done){
input(&event);
update();
render();
}
}
void input(SDL_Event* event){
while(SDL_PollEvent(event)){
on_event(event);
}
}
void update(){
SDL_Delay(50);
}
void render(){
}
void quit(){
SDL_Quit();
}
void resize(int width, int height){
if ( ! window.resize(width, height)){
exiting();
}
}
void exiting(){
done = true;
}
};
int main(){
Application* app;
app = new Application();
if ( ! app->init())
return -1;
app->run();
app->quit();
delete app;
app = NULL;
}
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