1 /*
2 * Schism Tracker - a cross-platform Impulse Tracker clone
3 * copyright (c) 2003-2005 Storlek <storlek@rigelseven.com>
4 * copyright (c) 2005-2008 Mrs. Brisby <mrs.brisby@nimh.org>
5 * copyright (c) 2009 Storlek & Mrs. Brisby
6 * copyright (c) 2010-2012 Storlek
7 * URL: http://schismtracker.org/
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 */
23
24 #include "headers.h"
25
26 #include "it.h"
27 #include "page.h"
28
29 /* --------------------------------------------------------------------- */
30 /* Thumb bars */
31
_draw_thumb_bar_internal(int width,int x,int y,int val,uint32_t fg)32 static inline void _draw_thumb_bar_internal(int width, int x, int y,
33 int val, uint32_t fg)
34 {
35 const uint8_t thumb_chars[2][8] = {
36 {155, 156, 157, 158, 159, 160, 161, 162},
37 {0, 0, 0, 163, 164, 165, 166, 167}
38 };
39 int n = ++val >> 3;
40
41 val %= 8;
42 draw_fill_chars(x, y, x + n - 1, y, 0);
43 draw_char(thumb_chars[0][val], x + n, y, fg, 0);
44 if (++n < width)
45 draw_char(thumb_chars[1][val], x + n, y, fg, 0);
46 if (++n < width)
47 draw_fill_chars(x + n, y, x + width - 1, y, 0);
48 }
49
draw_thumb_bar(int x,int y,int width,int min,int max,int val,int selected)50 void draw_thumb_bar(int x, int y, int width, int min, int max, int val,
51 int selected)
52 {
53 /* this wouldn't happen in a perfect world :P */
54 if (val < min || val > max) {
55 draw_fill_chars(x, y, x + width - 1, y,
56 ((status.flags & CLASSIC_MODE) ? 2 : 0));
57 return;
58 }
59
60 /* fix the range so that it's 0->n */
61 val -= min;
62 max -= min;
63
64 /* draw the bar */
65 if (!max)
66 _draw_thumb_bar_internal(width, x, y, 0,
67 selected ? 3 : 2);
68 else
69 _draw_thumb_bar_internal(width, x, y,
70 val * (width - 1) * 8 / max,
71 selected ? 3 : 2);
72 }
73
74 /* --------------------------------------------------------------------- */
75 /* VU meters */
76
draw_vu_meter(int x,int y,int width,int val,int color,int peak)77 void draw_vu_meter(int x, int y, int width, int val, int color, int peak)
78 {
79 const uint8_t endtext[8][3] = {
80 {174, 0, 0}, {175, 0, 0}, {176, 0, 0}, {176, 177, 0},
81 {176, 178, 0}, {176, 179, 180}, {176, 179, 181},
82 {176, 179, 182},
83 };
84 int leftover;
85 int chunks = (width / 3);
86 int maxval = width * 8 / 3;
87
88 /* reduced from (val * maxval / 64) */
89 val = CLAMP((val*width/24), 0, (maxval-1));
90 if (!val)
91 return;
92
93 leftover = val & 7;
94 val >>= 3;
95 if ((val < chunks - 1) || (status.flags & CLASSIC_MODE))
96 peak = color;
97
98 draw_char(endtext[leftover][0], 3 * val + x + 0, y, peak, 0);
99 draw_char(endtext[leftover][1], 3 * val + x + 1, y, peak, 0);
100 draw_char(endtext[leftover][2], 3 * val + x + 2, y, peak, 0);
101 while (val--) {
102 draw_char(176, 3 * val + x + 0, y, color, 0);
103 draw_char(179, 3 * val + x + 1, y, color, 0);
104 draw_char(182, 3 * val + x + 2, y, color, 0);
105 }
106 }
107