130 lines
3.0 KiB
C
130 lines
3.0 KiB
C
#include <stdlib.h>
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#include "checkbox.h"
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#include "input.h"
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#include "util.h"
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#define BORDER_SIZE 2
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#define BORDER_PADDING 2
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#define SELECTED_SIZE (CHECKBOX_SIZE-(BORDER_SIZE+BORDER_PADDING)*2)
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#define SELECTED_PADDING (BORDER_SIZE + BORDER_PADDING)
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#define TOUCH 15
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checkbox *checkbox_create(int x, int y, void (*clicked)(int))
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{
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checkbox *c = malloc(sizeof(checkbox));
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memset(c, 0, sizeof(checkbox));
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c->touch_id = -1;
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c->clicked = clicked;
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c->borders[BORDER_L] = fb_add_rect(0, 0, BORDER_SIZE, CHECKBOX_SIZE, WHITE);
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c->borders[BORDER_R] = fb_add_rect(0, 0, BORDER_SIZE, CHECKBOX_SIZE, WHITE);
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c->borders[BORDER_T] = fb_add_rect(0, 0, CHECKBOX_SIZE, BORDER_SIZE, WHITE);
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c->borders[BORDER_B] = fb_add_rect(0, 0, CHECKBOX_SIZE, BORDER_SIZE, WHITE);
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checkbox_set_pos(c, x, y);
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if(c->clicked)
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add_touch_handler(&checkbox_touch_handler, c);
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return c;
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}
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void checkbox_destroy(checkbox *c)
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{
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int i;
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for(i = 0; i < BORDER_MAX; ++i)
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fb_rm_rect(c->borders[i]);
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fb_rm_rect(c->selected);
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if(c->clicked)
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rm_touch_handler(&checkbox_touch_handler, c);
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free(c);
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}
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void checkbox_set_pos(checkbox *c, int x, int y)
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{
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c->x = x;
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c->y = y;
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int pos[][2] =
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{
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// BORDER_L
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{ x, y, },
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// BORDER_R
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{ x + CHECKBOX_SIZE - BORDER_SIZE, y },
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// BORDER_T
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{ x, y },
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// BORDER_B
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{ x, y + CHECKBOX_SIZE - BORDER_SIZE }
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};
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int i;
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for(i = 0; i < BORDER_MAX; ++i)
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{
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c->borders[i]->head.x = pos[i][0];
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c->borders[i]->head.y = pos[i][1];
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}
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if(c->selected)
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{
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c->selected->head.x = x + SELECTED_PADDING;
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c->selected->head.y = y + SELECTED_PADDING;
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}
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}
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void checkbox_select(checkbox *c, int select)
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{
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if(!((c->selected != NULL) ^ (select != 0)))
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return;
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if(select)
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{
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c->selected = fb_add_rect(c->x + SELECTED_PADDING, c->y + SELECTED_PADDING,
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SELECTED_SIZE, SELECTED_SIZE, LBLUE);
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}
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else
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{
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fb_rm_rect(c->selected);
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c->selected = NULL;
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}
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}
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int checkbox_touch_handler(touch_event *ev, void *data)
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{
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checkbox *box = (checkbox*)data;
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if(box->touch_id == -1)
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{
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if(!in_rect(ev->x, ev->y, box->x-TOUCH, box->y-TOUCH, CHECKBOX_SIZE+TOUCH*2, CHECKBOX_SIZE+TOUCH*2))
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return -1;
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box->touch_id = ev->id;
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box->hover = fb_add_rect(box->x-TOUCH, box->y-TOUCH, CHECKBOX_SIZE+TOUCH*2, CHECKBOX_SIZE+TOUCH*2, LBLUE2);
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fb_draw();
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}
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if(box->touch_id != ev->id)
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return -1;
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if(ev->changed & TCHNG_REMOVED)
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{
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if(in_rect(ev->x, ev->y, box->x-TOUCH, box->y-TOUCH, CHECKBOX_SIZE+TOUCH*2, CHECKBOX_SIZE+TOUCH*2))
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{
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(*box->clicked)(box->selected == NULL);
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checkbox_select(box, (box->selected == NULL));
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}
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fb_rm_rect(box->hover);
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box->hover = NULL;
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box->touch_id = -1;
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fb_draw();
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}
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return 0;
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}
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