1#include <stdlib.h>
  2#include <stdio.h>
  3#include <locale.h>
  4#include <unistd.h>
  5
  6#include "interface.h"
  7#include "mutex.h"
  8
  9#define TB_IMPL
 10#include "termbox2.h"
 11
 12static int block_width = 14;
 13static int block_height = 4;
 14
 15void draw_block(int x, int y, const char *label, int empty) {
 16
 17	tb_set_cell(x, y, 0x250C, TB_WHITE, TB_DEFAULT);
 18    tb_set_cell(x+block_width-1, y, 0x2510, TB_WHITE, TB_DEFAULT);
 19    tb_set_cell(x, y+block_height-1, 0x2514, TB_WHITE, TB_DEFAULT);
 20    tb_set_cell(x+block_width-1, y+block_height-1, 0x2518, TB_WHITE, TB_DEFAULT);
 21	
 22	tb_printf(x+(block_width/2) - (strlen(label)/2), y+(block_height/2)-1 ,TB_YELLOW, 0, label);
 23	tb_printf(x+(block_width/2) - (strlen("empty")/2), y+(block_height/2) ,TB_DIM, 0, "empty");
 24	
 25	tb_present();
 26}
 27
 28void draw_blocks() {
 29	int offset_x = 0;
 30	int offset_y = 6;
 31	char col_names[6] = {'A', 'B', 'C', 'D', 'E', 'F'};
 32
 33	for (int r = 0; r < 4; r++) {
 34		for (int c = 0; c < 6; c++) {
 35			char label[3];
 36            label[0] = col_names[c];
 37            label[1] = '1' + r;
 38            label[2] = '\0';
 39			draw_block(offset_x+(block_width*c), offset_y+(block_height*r), label, 0);
 40		}
 41	}
 42}
 43
 44void draw_help_tooltip(const char* tooltip_text) {
 45	tb_printf(tb_width() - strlen(tooltip_text) - 1, tb_height()-1, TB_DIM, 0, tooltip_text);
 46	tb_present();
 47}
 48
 49void *interface(void *arg) {
 50	InterfaceArgs* args = (InterfaceArgs*)arg;
 51
 52	int ret;
 53	setlocale(LC_ALL, "");
 54
 55	ret = tb_init();
 56	if (ret) {
 57		fprintf(stderr, "tb_init() failed with error code %d\n", ret);
 58		exit(1);
 59	}
 60
 61	tb_set_input_mode(TB_INPUT_ESC | TB_INPUT_MOUSE);
 62	struct tb_event ev;
 63
 64	tb_clear();
 65	tb_present();
 66
 67	tb_set_cursor(0, tb_height()-1);
 68	tb_hide_cursor();
 69
 70	// Show currently selected soundfont.
 71	tb_printf(0, 0, TB_GREEN, 0, "Soundfont: %s", args->soundfont_file);
 72	tb_printf(0, 1, TB_GREEN, 0, "Preset: %d", args->soundfont_preset);
 73	tb_present();
 74
 75	// Draw interface.
 76	draw_help_tooltip("Ctrl+q - Quit");
 77	draw_blocks();
 78	/* draw_block(10, 10, "A1"); */
 79
 80	while(1) {
 81		ret = tb_poll_event(&ev);
 82
 83		if (ret != TB_OK) {
 84			if (ret == TB_ERR_POLL && tb_last_errno() == EINTR) {
 85				/* Poll was interrupted, maybe by a SIGWINCH; try again */
 86				continue;
 87			}
 88			/* Some other error occurred; bail */
 89			break;
 90		}
 91
 92		switch (ev.type) {
 93			case TB_EVENT_KEY: 
 94				if (ev.key == TB_KEY_CTRL_Q) {
 95					tb_shutdown();
 96					exit(0);
 97				}
 98
 99				if (ev.key == TB_KEY_ARROW_UP) {
100
101				}
102
103				if (ev.key == TB_KEY_ARROW_DOWN) {
104
105				}
106
107				break;
108		}	
109	}
110}
111