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
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
#include <slang.h>
#include <stdlib.h>
#include <string.h>
#include "newt.h"
#include "newt_pr.h"
struct button {
char * text;
int compact;
};
static void buttonDrawIt(newtComponent co, int active, int pushed);
static void buttonDrawText(newtComponent co, int active, int pushed);
static void buttonDraw(newtComponent c);
static void buttonDestroy(newtComponent co);
static struct eventResult buttonEvent(newtComponent c,
struct event ev);
static void buttonPlace(newtComponent co, int newLeft, int newTop);
static struct componentOps buttonOps = {
buttonDraw,
buttonEvent,
buttonDestroy,
buttonPlace,
newtDefaultMappedHandler,
} ;
static newtComponent createButton(int left, int row, const char * text, int compact) {
newtComponent co;
struct button * bu;
co = malloc(sizeof(*co));
bu = malloc(sizeof(struct button));
co->data = bu;
bu->text = strdup(text);
bu->compact = compact;
co->ops = &buttonOps;
if (bu->compact) {
co->height = 1;
co->width = strlen(text) + 3;
} else {
co->height = 4;
co->width = strlen(text) + 5;
}
co->top = row;
co->left = left;
co->takesFocus = 1;
co->isMapped = 0;
newtGotorc(co->top, co->left);
return co;
}
newtComponent newtCompactButton(int left, int row, const char * text) {
return createButton(left, row, text, 1);
}
newtComponent newtButton(int left, int row, const char * text) {
return createButton(left, row, text, 0);
}
static void buttonDestroy(newtComponent co) {
struct button * bu = co->data;
free(bu->text);
free(bu);
free(co);
}
static void buttonPlace(newtComponent co, int newLeft, int newTop) {
co->top = newTop;
co->left = newLeft;
newtGotorc(co->top, co->left);
}
static void buttonDraw(newtComponent co) {
buttonDrawIt(co, 0, 0);
}
static void buttonDrawIt(newtComponent co, int active, int pushed) {
struct button * bu = co->data;
if (!co->isMapped) return;
SLsmg_set_color(NEWT_COLORSET_BUTTON);
if (bu->compact) {
if (active)
SLsmg_set_color(NEWT_COLORSET_COMPACTBUTTON);
else
SLsmg_set_color(NEWT_COLORSET_BUTTON);
newtGotorc(co->top+ pushed, co->left + 1 + pushed);
SLsmg_write_char('<');
SLsmg_write_string(bu->text);
SLsmg_write_char('>');
} else {
if (pushed) {
SLsmg_set_color(NEWT_COLORSET_BUTTON);
newtDrawBox(co->left + 1, co->top + 1, co->width - 1, 3, 0);
SLsmg_set_color(NEWT_COLORSET_WINDOW);
newtClearBox(co->left, co->top, co->width, 1);
newtClearBox(co->left, co->top, 1, co->height);
} else {
newtDrawBox(co->left, co->top, co->width - 1, 3, 1);
}
buttonDrawText(co, active, pushed);
}
}
static void buttonDrawText(newtComponent co, int active, int pushed) {
struct button * bu = co->data;
if (pushed) pushed = 1;
if (active)
SLsmg_set_color(NEWT_COLORSET_ACTBUTTON);
else
SLsmg_set_color(NEWT_COLORSET_BUTTON);
newtGotorc(co->top + 1 + pushed, co->left + 1 + pushed);
SLsmg_write_char(' ');
SLsmg_write_string(bu->text);
SLsmg_write_char(' ');
}
static struct eventResult buttonEvent(newtComponent co,
struct event ev) {
struct eventResult er;
struct button * bu = co->data;
if (ev.when == EV_NORMAL) {
switch (ev.event) {
case EV_FOCUS:
buttonDrawIt(co, 1, 0);
er.result = ER_SWALLOWED;
break;
case EV_UNFOCUS:
buttonDrawIt(co, 0, 0);
er.result = ER_SWALLOWED;
break;
case EV_KEYPRESS:
if (ev.u.key == ' ' || ev.u.key == '\r') {
if (!bu->compact) {
/* look pushed */
buttonDrawIt(co, 1, 1);
newtRefresh();
newtDelay(150000);
buttonDrawIt(co, 1, 0);
newtRefresh();
newtDelay(150000);
}
er.result = ER_EXITFORM;
} else
er.result = ER_IGNORED;
break;
case EV_MOUSE:
if (ev.u.mouse.type == MOUSE_BUTTON_DOWN &&
co->top <= ev.u.mouse.y &&
co->top + co->height - !bu->compact > ev.u.mouse.y &&
co->left <= ev.u.mouse.x &&
co->left + co->width - !bu->compact > ev.u.mouse.x) {
if (!bu->compact) {
buttonDrawIt(co, 1, 1);
newtRefresh();
newtDelay(150000);
buttonDrawIt(co, 1, 0);
newtRefresh();
newtDelay(150000);
}
er.result = ER_EXITFORM;
}
break;
}
} else
er.result = ER_IGNORED;
return er;
}
|
