sdl bouton
#include <stdlib.h>
#include <stdio.h>
#include <SDL/SDL.h>
int creabouton(int positionx, int positiony, int w, int h, SDL_Surface* ecran, int couleura, int couleurb, int couleurc)
{
int continuer = 1, i = 0, resultat = 0, j = 0, resultat2 = 0, j2 = 0;
SDL_Event event;
SDL_Surface *bouton = NULL, *degrader = NULL;
SDL_Rect position, position2;
position.x = positionx;
position.y = positiony;
position2.x = positionx;
position2.y = positiony;
bouton = SDL_CreateRGBSurface(SDL_HWSURFACE, w, h, 32, 0, 0, 0, 0);
SDL_FillRect(bouton, NULL, SDL_MapRGB(ecran->format, couleura, couleurb, couleurc));
SDL_BlitSurface(bouton, NULL, ecran, &position);
resultat2 = (4*h)/100;
resultat = (4*w)/100;
for(i = 0; i < resultat || i < resultat2; i++)
{
if(i < resultat)
{
degrader = SDL_CreateRGBSurface(SDL_HWSURFACE, 1, h, 32, 0, 0, 0,0);
SDL_FillRect(degrader, NULL, SDL_MapRGB(bouton->format, j, j, j));
SDL_BlitSurface(degrader, NULL, ecran, &position);
position.x++;
j += 255/resultat;
}
if(i < resultat2)
{
degrader = SDL_CreateRGBSurface(SDL_HWSURFACE, w, 1, 32, 0, 0, 0,0);
SDL_FillRect(degrader, NULL, SDL_MapRGB(bouton->format, j2, j2, j2));
SDL_BlitSurface(degrader, NULL, ecran, &position2);
position2.y++;
j2 += 255/resultat2;
}
}
SDL_Flip(ecran);
while(continuer)
{
SDL_WaitEvent(&event);
switch(event.type)
{
case SDL_QUIT:
continuer = 0;
break;
case SDL_MOUSEBUTTONDOWN:
if(event.button.x >= positionx && event.button.x <= (positionx + w) && event.button.y >= positiony && event.button.y <= (positiony + h))
{
return 1;
continuer = 0;
}
break;
}
}
}
int main ( int argc, char** argv )
{
int fenetre = 0;
SDL_Surface *ecran = NULL;
SDL_Init(SDL_INIT_VIDEO);
SDL_Event event;
ecran = SDL_SetVideoMode(640, 480, 32, SDL_HWSURFACE);
SDL_WM_SetIcon(SDL_LoadBMP("icon.bmp"), NULL);
SDL_WM_SetCaption("Fenetre avec bouton a martin", NULL);
SDL_FillRect(ecran, NULL, SDL_MapRGB(ecran->format, 255, 255, 255));
fenetre = creabouton(200, 300, 210, 100, ecran, 0, 0, 0);
SDL_Flip(ecran);
if(fenetre == 1)
{
fenetre = 0;
SDL_FillRect(ecran, NULL, SDL_MapRGB(ecran->format, 255, 033, 50));
fenetre = creabouton(640/2, 480/2, 40, 40, ecran, 25, 250, 0);
SDL_Flip(ecran);
}
if(fenetre == 1)
{
fenetre = 0;
fenetre = creabouton(0, 0, 400, 360, ecran, 255, 0, 255);
}
SDL_Quit();
}