1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
#define TB_IMPL
#include <termbox2.h>
#include <locale.h>
#include <signal.h>
#include <unistd.h>
#include <sys/wait.h>
#define Assert(expr) \
if (!(expr)) \
{ \
tb_shutdown(); \
raise(SIGTRAP); \
}
#define METER_WIDTH 4
static char ***EnvironmentPath = 0;
void
draw_meter(int X, int Y, int Height, int MaxLevel, int Level)
{
int FillColor = 0;
Height -= 2; // substract top and bottom border
tb_printf(X, Y, 0, 0, "%ls", L"┌──┐");
tb_printf(X, Y + Height + 1, 0, 0, "%ls", L"└ ┘");
if (Level == MaxLevel)
{
FillColor = TB_GREEN;
tb_printf(X + 1, Y + Height + 1, 0, 0, "00");
}
else
{
FillColor = TB_CYAN;
tb_printf(X + 1, Y + Height + 1, 0, 0, "%02d", Level);
}
int FilledLevel = (Level * Height)/MaxLevel;
for (int LevelIndex = 0; LevelIndex < FilledLevel; LevelIndex++)
{
int YLevel = Y + (Height - LevelIndex);
tb_set_cell(X + 1, YLevel, L'▒', FillColor, FillColor);
tb_set_cell(X + 2, YLevel, L'▒', FillColor, FillColor);
}
for (int YOffset = 0; YOffset < Height; YOffset++)
{
tb_set_cell(X + 0, Y + YOffset + 1, L'│', 0, 0);
tb_set_cell(X + 3, Y + YOffset + 1, L'│', 0, 0);
}
}
int
main(int Argc, char *Args[], char *Envp[])
{
EnvironmentPath = &Envp;
struct tb_event ev = {0};
Assert(setlocale(LC_ALL, ""));
int Quit = 0;
int Level = 0;
int LevelStep = 10;
int MeterMaxLevel = 100;
int MeterHeight = 10 + 2;
tb_init();
tb_set_input_mode(TB_INPUT_ESC | TB_INPUT_MOUSE);
while (!Quit)
{
tb_clear();
int Y = 0;
draw_meter(1, Y, MeterHeight, MeterMaxLevel, Level);
Y += MeterHeight + 1;;
tb_print(0, Y, TB_BOLD, 0, "j"); tb_print(2, Y++, 0, 0, "decrease");
tb_print(0, Y, TB_BOLD, 0, "k"); tb_print(2, Y++, 0, 0, "increase");
tb_print(0, Y, TB_BOLD, 0, "q"); tb_print(2, Y++, 0, 0, "to quit");
tb_present();
tb_poll_event(&ev);
if (ev.ch == 'q' || ev.key == TB_KEY_CTRL_C) Quit = 1;
else if ((ev.ch == 'j' || ev.key == TB_KEY_MOUSE_WHEEL_DOWN) &&
Level > 0)
{
if (LevelStep > Level) Level = 0;
else Level -= LevelStep;
}
else if ((ev.ch == 'k' || ev.key == TB_KEY_MOUSE_WHEEL_UP) &&
Level < MeterMaxLevel)
{
if (Level + LevelStep > MeterMaxLevel) Level = MeterMaxLevel;
else Level += LevelStep;
}
}
tb_shutdown();
return 0;
}
|
