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
285
286
287
|
/*
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 buttonbar.c
* \brief Source: WButtonBar widget
*/
#include <config.h>
#include <stdlib.h>
#include <string.h>
#include "lib/global.h"
#include "lib/tty/tty.h"
#include "lib/tty/key.h" /* XCTRL and ALT macros */
#include "lib/skin.h"
#include "lib/strutil.h"
#include "lib/util.h"
#include "lib/widget.h"
/*** global variables ****************************************************************************/
/*** file scope macro definitions ****************************************************************/
/*** file scope type declarations ****************************************************************/
/*** file scope variables ************************************************************************/
/*** file scope functions ************************************************************************/
/* --------------------------------------------------------------------------------------------- */
/* calculate positions of buttons; width is never less than 7 */
static void
buttonbar_init_button_positions (WButtonBar * bb)
{
int i;
int pos = 0;
if (COLS < BUTTONBAR_LABELS_NUM * 7)
{
for (i = 0; i < BUTTONBAR_LABELS_NUM; i++)
{
if (pos + 7 <= COLS)
pos += 7;
bb->labels[i].end_coord = pos;
}
}
else
{
/* Distribute the extra width in a way that the middle vertical line
(between F5 and F6) aligns with the two panels. The extra width
is distributed in this order: F10, F5, F9, F4, ..., F6, F1. */
int dv, md;
dv = COLS / BUTTONBAR_LABELS_NUM;
md = COLS % BUTTONBAR_LABELS_NUM;
for (i = 0; i < BUTTONBAR_LABELS_NUM / 2; i++)
{
pos += dv;
if (BUTTONBAR_LABELS_NUM / 2 - 1 - i < md / 2)
pos++;
bb->labels[i].end_coord = pos;
}
for (; i < BUTTONBAR_LABELS_NUM; i++)
{
pos += dv;
if (BUTTONBAR_LABELS_NUM - 1 - i < (md + 1) / 2)
pos++;
bb->labels[i].end_coord = pos;
}
}
}
/* --------------------------------------------------------------------------------------------- */
/* return width of one button */
static int
buttonbar_get_button_width (const WButtonBar * bb, int i)
{
if (i == 0)
return bb->labels[0].end_coord;
return bb->labels[i].end_coord - bb->labels[i - 1].end_coord;
}
/* --------------------------------------------------------------------------------------------- */
static int
buttonbar_get_button_by_x_coord (const WButtonBar * bb, int x)
{
int i;
for (i = 0; i < BUTTONBAR_LABELS_NUM; i++)
if (bb->labels[i].end_coord > x)
return i;
return (-1);
}
/* --------------------------------------------------------------------------------------------- */
static void
set_label_text (WButtonBar * bb, int idx, const char *text)
{
g_free (bb->labels[idx - 1].text);
bb->labels[idx - 1].text = g_strdup (text);
}
/* --------------------------------------------------------------------------------------------- */
/* returns TRUE if a function has been called, FALSE otherwise. */
static gboolean
buttonbar_call (WButtonBar * bb, int i)
{
cb_ret_t ret = MSG_NOT_HANDLED;
Widget *w = WIDGET (bb);
Widget *target;
if ((bb != NULL) && (bb->labels[i].command != CK_IgnoreKey))
{
target = (bb->labels[i].receiver != NULL) ? bb->labels[i].receiver : WIDGET (w->owner);
ret = send_message (target, w, MSG_ACTION, bb->labels[i].command, NULL);
}
return ret;
}
/* --------------------------------------------------------------------------------------------- */
static cb_ret_t
buttonbar_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
{
WButtonBar *bb = BUTTONBAR (w);
int i;
switch (msg)
{
case MSG_HOTKEY:
for (i = 0; i < BUTTONBAR_LABELS_NUM; i++)
if (parm == KEY_F (i + 1) && buttonbar_call (bb, i))
return MSG_HANDLED;
return MSG_NOT_HANDLED;
case MSG_DRAW:
if (widget_get_state (w, WST_VISIBLE))
{
buttonbar_init_button_positions (bb);
widget_gotoyx (w, 0, 0);
tty_setcolor (DEFAULT_COLOR);
tty_printf ("%-*s", w->rect.cols, "");
widget_gotoyx (w, 0, 0);
for (i = 0; i < BUTTONBAR_LABELS_NUM; i++)
{
int width;
const char *text;
width = buttonbar_get_button_width (bb, i);
if (width <= 0)
break;
tty_setcolor (BUTTONBAR_HOTKEY_COLOR);
tty_printf ("%2d", i + 1);
tty_setcolor (BUTTONBAR_BUTTON_COLOR);
text = (bb->labels[i].text != NULL) ? bb->labels[i].text : "";
tty_print_string (str_fit_to_term (text, width - 2, J_LEFT_FIT));
}
}
return MSG_HANDLED;
case MSG_DESTROY:
for (i = 0; i < BUTTONBAR_LABELS_NUM; i++)
g_free (bb->labels[i].text);
return MSG_HANDLED;
default:
return widget_default_callback (w, sender, msg, parm, data);
}
}
/* --------------------------------------------------------------------------------------------- */
static void
buttonbar_mouse_callback (Widget * w, mouse_msg_t msg, mouse_event_t * event)
{
switch (msg)
{
case MSG_MOUSE_CLICK:
{
WButtonBar *bb = BUTTONBAR (w);
int button;
button = buttonbar_get_button_by_x_coord (bb, event->x);
if (button >= 0)
buttonbar_call (bb, button);
break;
}
default:
break;
}
}
/* --------------------------------------------------------------------------------------------- */
/*** public functions ****************************************************************************/
/* --------------------------------------------------------------------------------------------- */
WButtonBar *
buttonbar_new (void)
{
WRect r = { LINES - 1, 0, 1, COLS };
WButtonBar *bb;
Widget *w;
bb = g_new0 (WButtonBar, 1);
w = WIDGET (bb);
widget_init (w, &r, buttonbar_callback, buttonbar_mouse_callback);
w->pos_flags = WPOS_KEEP_HORZ | WPOS_KEEP_BOTTOM;
widget_want_hotkey (w, TRUE);
return bb;
}
/* --------------------------------------------------------------------------------------------- */
void
buttonbar_set_label (WButtonBar * bb, int idx, const char *text, const global_keymap_t * keymap,
Widget * receiver)
{
if ((bb != NULL) && (idx >= 1) && (idx <= BUTTONBAR_LABELS_NUM))
{
long command = CK_IgnoreKey;
if (keymap != NULL)
command = keybind_lookup_keymap_command (keymap, KEY_F (idx));
if ((text == NULL) || (text[0] == '\0'))
set_label_text (bb, idx, "");
else
set_label_text (bb, idx, text);
bb->labels[idx - 1].command = command;
bb->labels[idx - 1].receiver = WIDGET (receiver);
}
}
/* --------------------------------------------------------------------------------------------- */
/* Find ButtonBar widget in the dialog */
WButtonBar *
find_buttonbar (const WDialog * h)
{
return BUTTONBAR (widget_find_by_type (CONST_WIDGET (h), buttonbar_callback));
}
|
