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buttons.c
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187 lines (146 loc) · 5.77 KB
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/*
* buttons.c
*
* Created on: 16 de fev. de 2026
* Author: milton
*/
#include <stdint.h>
#include <string.h>
#include <ncurses.h>
#include <SDL2/SDL.h>
#include <malloc.h>
#include "buttons.h"
#define BUTTONS_SIDE 32
#define BUTTONS_LEADSIDE 4
#define BUTTONS_STEP 48
////////////////////////////////////////////////////////////////////////////////
static void draw_buttonsback(SDL_Renderer* renderer, int x, int y) {
SDL_Rect rect;
for (int i = 0; i < 9; i++){
int ipos = i;
if (ipos == 8)
ipos = 9;
rect.x = x + ipos * BUTTONS_STEP;
rect.y = y;
rect.w = BUTTONS_SIDE;
rect.h = BUTTONS_SIDE;
SDL_SetRenderDrawColor(renderer, 124, 124, 124, 255);
SDL_RenderFillRect(renderer, &rect);
SDL_SetRenderDrawColor(renderer, 164, 164, 84, 255);
rect.x = x + ipos * BUTTONS_STEP - BUTTONS_LEADSIDE;
rect.y = y + BUTTONS_LEADSIDE;
rect.w = BUTTONS_LEADSIDE;
rect.h = BUTTONS_LEADSIDE;
SDL_RenderFillRect(renderer, &rect);
rect.y = y + BUTTONS_SIDE - 2*BUTTONS_LEADSIDE;
SDL_RenderFillRect(renderer, &rect);
rect.x = x + ipos * BUTTONS_STEP + BUTTONS_SIDE;
SDL_RenderFillRect(renderer, &rect);
rect.y = y + BUTTONS_LEADSIDE;
SDL_RenderFillRect(renderer, &rect);
SDL_SetRenderDrawColor(renderer, 16, 16, 16, 255);
rect.x = x + ipos * BUTTONS_STEP + BUTTONS_LEADSIDE;
rect.y = y + BUTTONS_LEADSIDE;
SDL_RenderFillRect(renderer, &rect);
rect.y = y + BUTTONS_SIDE - 2*BUTTONS_LEADSIDE;
SDL_RenderFillRect(renderer, &rect);
rect.x = x + ipos * BUTTONS_STEP + BUTTONS_SIDE - 2*BUTTONS_LEADSIDE;
SDL_RenderFillRect(renderer, &rect);
rect.y = y + BUTTONS_LEADSIDE;
SDL_RenderFillRect(renderer, &rect);
}
SDL_RenderPresent(renderer);
}
////////////////////////////////////////////////////////////////////////////////
static Uint32 buttons_set_tick(Uint32 interval, void *param){
buttons_t *buttons = param;
buttons->buttonsTick = 1;
return interval;
}
////////////////////////////////////////////////////////////////////////////////
buttons_t *buttons_init(int x, int y, SDL_Renderer* renderer){
buttons_t *buttons = malloc(sizeof(buttons_t));
buttons->baseX = x;
buttons->baseY = y;
buttons->renderer = renderer;
buttons->buttons_state = 0x1ff;
buttons->buttons_state_old = 0x00;
buttons->buttonsTimer = SDL_AddTimer(50, buttons_set_tick, buttons);
draw_buttonsback(renderer, x, y);
return buttons;
}
////////////////////////////////////////////////////////////////////////////////
void buttons_refresh(buttons_t *buttons, int force){
if (!force){
if (!buttons->buttonsTick) return;
if (buttons->buttons_state == buttons->buttons_state_old) return;
}
else
draw_buttonsback(buttons->renderer, buttons->baseX, buttons->baseY);
buttons->buttonsTick = 0;
uint16_t mask = 0x01;
for (int i = 0; i < 9; i++){
int ipos = i;
if (ipos == 8)
ipos = 9;
if (force||((buttons->buttons_state ^ buttons->buttons_state_old) & mask)){
SDL_Rect rect;
if (!(buttons->buttons_state & mask)){ // Pressed
rect.x = buttons->baseX+ipos*BUTTONS_STEP+8;
rect.y = buttons->baseY+3+8;
rect.w = 16;
rect.h = 10;
SDL_SetRenderDrawColor(buttons->renderer, 0, 160, 0, 160);
SDL_RenderFillRect(buttons->renderer, &rect);
rect.x = buttons->baseX+ipos*BUTTONS_STEP+3+8;
rect.y = buttons->baseY+8;
rect.w = 10;
rect.h = 16;
SDL_SetRenderDrawColor(buttons->renderer, 0, 160, 0, 160);
SDL_RenderFillRect(buttons->renderer, &rect);
rect.x = buttons->baseX+ipos*BUTTONS_STEP+3+8;
rect.y = buttons->baseY+3+8;
rect.w = 10;
rect.h = 10;
SDL_SetRenderDrawColor(buttons->renderer, 0, 255, 0, 255);
SDL_RenderFillRect(buttons->renderer, &rect);
}
else{ // Not pressed
rect.x = buttons->baseX+ipos*BUTTONS_STEP+8;
rect.y = buttons->baseY+3+8;
rect.w = 16;
rect.h = 10;
SDL_SetRenderDrawColor(buttons->renderer, 61, 61, 61, 255);
SDL_RenderFillRect(buttons->renderer, &rect);
rect.x = buttons->baseX+ipos*BUTTONS_STEP+3+8;
rect.y = buttons->baseY+8;
rect.w = 10;
rect.h = 16;
SDL_SetRenderDrawColor(buttons->renderer, 61, 61, 61, 255);
SDL_RenderFillRect(buttons->renderer, &rect);
rect.x = buttons->baseX+ipos*BUTTONS_STEP+3+8;
rect.y = buttons->baseY+3+8;
rect.w = 10;
rect.h = 10;
SDL_SetRenderDrawColor(buttons->renderer, 0, 0, 0, 45);
SDL_RenderFillRect(buttons->renderer, &rect);
}
}
mask <<= 1;
}
SDL_RenderPresent(buttons->renderer);
buttons->buttons_state_old = buttons->buttons_state;
}
////////////////////////////////////////////////////////////////////////////////
void buttons_update(buttons_t *buttons, uint16_t bstate){
buttons->buttons_state = bstate;
}
////////////////////////////////////////////////////////////////////////////////
void buttons_reset(buttons_t *buttons){
buttons->buttons_state = 0;
}
////////////////////////////////////////////////////////////////////////////////
void buttons_close(buttons_t *buttons){
SDL_RemoveTimer(buttons->buttonsTimer);
free(buttons);
}