1 /*
2 Widgets for the Midnight Commander
3
4 Copyright (C) 1994-2021
5 Free Software Foundation, Inc.
6
7 Authors:
8 Radek Doulik, 1994, 1995
9 Miguel de Icaza, 1994, 1995
10 Jakub Jelinek, 1995
11 Andrej Borsenkow, 1996
12 Norbert Warmuth, 1997
13 Andrew Borodin <aborodin@vmail.ru>, 2009, 2010, 2013
14
15 This file is part of the Midnight Commander.
16
17 The Midnight Commander is free software: you can redistribute it
18 and/or modify it under the terms of the GNU General Public License as
19 published by the Free Software Foundation, either version 3 of the License,
20 or (at your option) any later version.
21
22 The Midnight Commander is distributed in the hope that it will be useful,
23 but WITHOUT ANY WARRANTY; without even the implied warranty of
24 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 GNU General Public License for more details.
26
27 You should have received a copy of the GNU General Public License
28 along with this program. If not, see <http://www.gnu.org/licenses/>.
29 */
30
31 /** \file hline.c
32 * \brief Source: WHLine widget (horizontal line)
33 */
34
35 #include <config.h>
36
37 #include <stdarg.h>
38 #include <stdlib.h>
39
40 #include "lib/global.h"
41 #include "lib/tty/tty.h"
42 #include "lib/tty/color.h"
43 #include "lib/skin.h"
44 #include "lib/strutil.h"
45 #include "lib/widget.h"
46
47 /*** global variables ****************************************************************************/
48
49 /*** file scope macro definitions ****************************************************************/
50
51 /*** file scope type declarations ****************************************************************/
52
53 /*** file scope variables ************************************************************************/
54
55 /* --------------------------------------------------------------------------------------------- */
56 /*** file scope functions ************************************************************************/
57 /* --------------------------------------------------------------------------------------------- */
58
59 static void
hline_adjust_cols(WHLine * l)60 hline_adjust_cols (WHLine * l)
61 {
62 if (l->auto_adjust_cols)
63 {
64 Widget *w = WIDGET (l);
65 Widget *wo = WIDGET (w->owner);
66
67 if (DIALOG (wo)->compact)
68 {
69 w->x = wo->x;
70 w->cols = wo->cols;
71 }
72 else
73 {
74 w->x = wo->x + 1;
75 w->cols = wo->cols - 2;
76 }
77 }
78 }
79
80 /* --------------------------------------------------------------------------------------------- */
81
82 static cb_ret_t
hline_callback(Widget * w,Widget * sender,widget_msg_t msg,int parm,void * data)83 hline_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
84 {
85 WHLine *l = HLINE (w);
86
87 switch (msg)
88 {
89 case MSG_INIT:
90 hline_adjust_cols (l);
91 return MSG_HANDLED;
92
93 case MSG_RESIZE:
94 hline_adjust_cols (l);
95 w->y = RECT (data)->y;
96 return MSG_HANDLED;
97
98 case MSG_DRAW:
99 if (l->transparent)
100 tty_setcolor (DEFAULT_COLOR);
101 else
102 {
103 const int *colors;
104
105 colors = widget_get_colors (w);
106 tty_setcolor (colors[DLG_COLOR_NORMAL]);
107 }
108
109 tty_draw_hline (w->y, w->x + 1, ACS_HLINE, w->cols - 2);
110
111 if (l->auto_adjust_cols)
112 {
113 widget_gotoyx (w, 0, 0);
114 tty_print_alt_char (ACS_LTEE, FALSE);
115 widget_gotoyx (w, 0, w->cols - 1);
116 tty_print_alt_char (ACS_RTEE, FALSE);
117 }
118
119 if (l->text != NULL)
120 {
121 int text_width;
122
123 text_width = str_term_width1 (l->text);
124 widget_gotoyx (w, 0, (w->cols - text_width) / 2);
125 tty_print_string (l->text);
126 }
127 return MSG_HANDLED;
128
129 case MSG_DESTROY:
130 g_free (l->text);
131 return MSG_HANDLED;
132
133 default:
134 return widget_default_callback (w, sender, msg, parm, data);
135 }
136 }
137
138 /* --------------------------------------------------------------------------------------------- */
139 /*** public functions ****************************************************************************/
140 /* --------------------------------------------------------------------------------------------- */
141
142 WHLine *
hline_new(int y,int x,int width)143 hline_new (int y, int x, int width)
144 {
145 WHLine *l;
146 Widget *w;
147 int lines = 1;
148
149 l = g_new (WHLine, 1);
150 w = WIDGET (l);
151 widget_init (w, y, x, lines, width < 0 ? 1 : width, hline_callback, NULL);
152 l->text = NULL;
153 l->auto_adjust_cols = (width < 0);
154 l->transparent = FALSE;
155
156 return l;
157 }
158
159 /* --------------------------------------------------------------------------------------------- */
160
161 void
hline_set_text(WHLine * l,const char * text)162 hline_set_text (WHLine * l, const char *text)
163 {
164 g_free (l->text);
165
166 if (text == NULL || *text == '\0')
167 l->text = NULL;
168 else
169 l->text = g_strdup (text);
170
171 widget_draw (WIDGET (l));
172 }
173
174 /* --------------------------------------------------------------------------------------------- */
175
176 void
hline_set_textv(WHLine * l,const char * format,...)177 hline_set_textv (WHLine * l, const char *format, ...)
178 {
179 va_list args;
180 char buf[BUF_1K]; /* FIXME: is it enough? */
181
182 va_start (args, format);
183 g_vsnprintf (buf, sizeof (buf), format, args);
184 va_end (args);
185
186 hline_set_text (l, buf);
187 }
188
189 /* --------------------------------------------------------------------------------------------- */
190