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
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
|
/*
Widgets for the Midnight Commander
Copyright (C) 1994-2022
Free Software Foundation, Inc.
Authors:
Radek Doulik, 1994, 1995
Miguel de Icaza, 1994, 1995
Jakub Jelinek, 1995
Andrej Borsenkow, 1996
Norbert Warmuth, 1997
Andrew Borodin <aborodin@vmail.ru>, 2009-2022
This file is part of the Midnight Commander.
The Midnight Commander is free software: you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
The Midnight Commander is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/** \file button.c
* \brief Source: WButton widget
*/
#include <config.h>
#include <stdlib.h>
#include "lib/global.h"
#include "lib/tty/tty.h"
#include "lib/strutil.h"
#include "lib/widget.h"
/*** global variables ****************************************************************************/
/*** file scope macro definitions ****************************************************************/
/*** file scope type declarations ****************************************************************/
/*** file scope variables ************************************************************************/
/* --------------------------------------------------------------------------------------------- */
/*** file scope functions ************************************************************************/
/* --------------------------------------------------------------------------------------------- */
/* --------------------------------------------------------------------------------------------- */
/*** public functions ****************************************************************************/
/* --------------------------------------------------------------------------------------------- */
cb_ret_t
button_default_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
{
WButton *b = BUTTON (w);
WGroup *g = w->owner;
WDialog *h = DIALOG (g);
int off = 0;
switch (msg)
{
case MSG_HOTKEY:
/*
* Don't let the default button steal Enter from the current
* button. This is a workaround for the flawed event model
* when hotkeys are sent to all widgets before the key is
* handled by the current widget.
*/
if (parm == '\n' && WIDGET (g->current->data) == w)
{
send_message (w, sender, MSG_KEY, ' ', data);
return MSG_HANDLED;
}
if (parm == '\n' && b->flags == DEFPUSH_BUTTON)
{
send_message (w, sender, MSG_KEY, ' ', data);
return MSG_HANDLED;
}
if (b->text.hotkey != NULL && g_ascii_tolower ((gchar) b->text.hotkey[0]) == parm)
{
send_message (w, sender, MSG_KEY, ' ', data);
return MSG_HANDLED;
}
return MSG_NOT_HANDLED;
case MSG_KEY:
if (parm != ' ' && parm != '\n')
return MSG_NOT_HANDLED;
h->ret_value = b->action;
if (b->callback == NULL || b->callback (b, b->action) != 0)
dlg_stop (h);
return MSG_HANDLED;
case MSG_CURSOR:
switch (b->flags)
{
case DEFPUSH_BUTTON:
off = 3;
break;
case NORMAL_BUTTON:
off = 2;
break;
case NARROW_BUTTON:
off = 1;
break;
case HIDDEN_BUTTON:
default:
off = 0;
break;
}
widget_gotoyx (w, 0, b->hotpos + off);
return MSG_HANDLED;
case MSG_DRAW:
{
gboolean focused;
focused = widget_get_state (w, WST_FOCUSED);
widget_selectcolor (w, focused, FALSE);
widget_gotoyx (w, 0, 0);
switch (b->flags)
{
case DEFPUSH_BUTTON:
tty_print_string ("[< ");
break;
case NORMAL_BUTTON:
tty_print_string ("[ ");
break;
case NARROW_BUTTON:
tty_print_string ("[");
break;
case HIDDEN_BUTTON:
default:
return MSG_HANDLED;
}
hotkey_draw (w, b->text, focused);
switch (b->flags)
{
case DEFPUSH_BUTTON:
tty_print_string (" >]");
break;
case NORMAL_BUTTON:
tty_print_string (" ]");
break;
case NARROW_BUTTON:
tty_print_string ("]");
break;
default:
break;
}
return MSG_HANDLED;
}
case MSG_DESTROY:
hotkey_free (b->text);
return MSG_HANDLED;
default:
return widget_default_callback (w, sender, msg, parm, data);
}
}
/* --------------------------------------------------------------------------------------------- */
void
button_mouse_default_callback (Widget * w, mouse_msg_t msg, mouse_event_t * event)
{
(void) event;
switch (msg)
{
case MSG_MOUSE_DOWN:
widget_select (w);
break;
case MSG_MOUSE_CLICK:
send_message (w, NULL, MSG_KEY, ' ', NULL);
send_message (w->owner, w, MSG_POST_KEY, ' ', NULL);
break;
default:
break;
}
}
/* --------------------------------------------------------------------------------------------- */
WButton *
button_new (int y, int x, int action, button_flags_t flags, const char *text, bcback_fn callback)
{
WRect r = { y, x, 1, 1 };
WButton *b;
Widget *w;
b = g_new (WButton, 1);
w = WIDGET (b);
b->action = action;
b->flags = flags;
b->text = hotkey_new (text);
r.cols = button_get_len (b);
widget_init (w, &r, button_default_callback, button_mouse_default_callback);
w->options |= WOP_SELECTABLE | WOP_WANT_CURSOR | WOP_WANT_HOTKEY;
b->callback = callback;
b->hotpos = (b->text.hotkey != NULL) ? str_term_width1 (b->text.start) : -1;
return b;
}
/* --------------------------------------------------------------------------------------------- */
char *
button_get_text (const WButton * b)
{
return hotkey_get_text (b->text);
}
/* --------------------------------------------------------------------------------------------- */
void
button_set_text (WButton * b, const char *text)
{
Widget *w = WIDGET (b);
hotkey_t hk;
hk = hotkey_new (text);
if (hotkey_equal (b->text, hk))
{
hotkey_free (hk);
return;
}
hotkey_free (b->text);
b->text = hk;
b->hotpos = (b->text.hotkey != NULL) ? str_term_width1 (b->text.start) : -1;
w->rect.cols = button_get_len (b);
widget_draw (w);
}
/* --------------------------------------------------------------------------------------------- */
int
button_get_len (const WButton * b)
{
int ret = hotkey_width (b->text);
switch (b->flags)
{
case DEFPUSH_BUTTON:
ret += 6;
break;
case NORMAL_BUTTON:
ret += 4;
break;
case NARROW_BUTTON:
ret += 2;
break;
case HIDDEN_BUTTON:
default:
return 0;
}
return ret;
}
/* --------------------------------------------------------------------------------------------- */
|
