4d1db15940f4a978c3c6e3649b480ba22661618f
1 /*
2 * $Id$
3 *
4 * (c) 2004 by Kalle Wallin <kaw@linux.se>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 *
19 */
21 #include <stdlib.h>
22 #include <string.h>
23 #include <glib.h>
24 #include <ncurses.h>
26 #include "config.h"
27 #include "ncmpc.h"
28 #include "mpdclient.h"
29 #include "command.h"
30 #include "screen.h"
31 #include "screen_utils.h"
34 typedef struct
35 {
36 signed char highlight;
37 command_t command;
38 char *text;
39 } help_text_row_t;
41 static help_text_row_t help_text[] =
42 {
43 { 1, CMD_NONE, N_("Keys - Movement") },
44 { 2, CMD_NONE, NULL },
45 { 0, CMD_LIST_PREVIOUS, NULL },
46 { 0, CMD_LIST_NEXT, NULL },
47 { 0, CMD_LIST_PREVIOUS_PAGE, NULL },
48 { 0, CMD_LIST_NEXT_PAGE, NULL },
49 { 0, CMD_LIST_FIRST, NULL },
50 { 0, CMD_LIST_LAST, NULL },
51 { 0, CMD_NONE, NULL },
52 { 0, CMD_SCREEN_NEXT, NULL },
53 { 0, CMD_SCREEN_HELP, NULL },
54 { 0, CMD_SCREEN_PLAY, NULL },
55 { 0, CMD_SCREEN_FILE, NULL },
56 #ifdef ENABLE_CLOCK_SCREEN
57 { 0, CMD_SCREEN_CLOCK, NULL },
58 #endif
59 #ifdef ENABLE_KEYDEF_SCREEN
60 { 0, CMD_SCREEN_KEYDEF, NULL },
61 #endif
63 { 0, CMD_NONE, NULL },
64 { 0, CMD_NONE, NULL },
65 { 1, CMD_NONE, N_("Keys - Global") },
66 { 2, CMD_NONE, NULL },
67 { 0, CMD_STOP, NULL },
68 { 0, CMD_PAUSE, NULL },
69 { 0, CMD_TRACK_NEXT, NULL },
70 { 0, CMD_TRACK_PREVIOUS, NULL },
71 { 0, CMD_SEEK_FORWARD, NULL },
72 { 0, CMD_SEEK_BACKWARD, NULL },
73 { 0, CMD_VOLUME_DOWN, NULL },
74 { 0, CMD_VOLUME_UP, NULL },
75 { 0, CMD_NONE, NULL },
76 { 0, CMD_REPEAT, NULL },
77 { 0, CMD_RANDOM, NULL },
78 { 0, CMD_CROSSFADE, NULL },
79 { 0, CMD_SHUFFLE, NULL },
80 { 0, CMD_DB_UPDATE, NULL },
81 { 0, CMD_NONE, NULL },
82 { 0, CMD_LIST_FIND, NULL },
83 { 0, CMD_LIST_RFIND, NULL },
84 { 0, CMD_LIST_FIND_NEXT, NULL },
85 { 0, CMD_LIST_RFIND_NEXT, NULL },
86 { 0, CMD_TOGGLE_FIND_WRAP, NULL },
87 { 0, CMD_NONE, NULL },
88 { 0, CMD_QUIT, NULL },
90 { 0, CMD_NONE, NULL },
91 { 0, CMD_NONE, NULL },
92 { 1, CMD_NONE, N_("Keys - Playlist screen") },
93 { 2, CMD_NONE, NULL },
94 { 0, CMD_PLAY, N_("Play") },
95 { 0, CMD_DELETE, NULL },
96 { 0, CMD_CLEAR, NULL },
97 { 0, CMD_LIST_MOVE_UP, N_("Move song up") },
98 { 0, CMD_LIST_MOVE_DOWN, N_("Move song down") },
99 { 0, CMD_ADD, NULL },
100 { 0, CMD_SAVE_PLAYLIST, NULL },
101 { 0, CMD_SCREEN_UPDATE, N_("Center") },
102 { 0, CMD_TOGGLE_AUTOCENTER, NULL },
104 { 0, CMD_NONE, NULL },
105 { 0, CMD_NONE, NULL },
106 { 1, CMD_NONE, N_("Keys - Browse screen") },
107 { 2, CMD_NONE, NULL },
108 { 0, CMD_PLAY, N_("Enter directory") },
109 { 0, CMD_SELECT, NULL },
110 { 0, CMD_DELETE, NULL },
111 { 0, CMD_SCREEN_UPDATE, NULL },
113 { 0, CMD_NONE, NULL },
114 { 0, CMD_NONE, NULL },
115 { 1, CMD_NONE, "ncmpc build information" },
116 { 2, CMD_NONE, NULL },
117 { 0, CMD_NONE, " Version : " VERSION },
118 { 0, CMD_NONE, " Configuration dirs : ~/.ncmpc, " SYSCONFDIR "/" PACKAGE },
119 #ifdef ENABLE_NLS
120 { 0, CMD_NONE, "NLS support : yes" },
121 #else
122 { 0, CMD_NONE, "NLS support : no" },
123 #endif
124 #ifdef ENABLE_KEYDEF_SCREEN
125 { 0, CMD_NONE, "Key Editor : yes" },
126 #else
127 { 0, CMD_NONE, "Key Editor : no" },
128 #endif
130 { 0, CMD_NONE, NULL },
131 {-1, CMD_NONE, NULL }
132 };
134 static int help_text_rows = -1;
135 static list_window_t *lw = NULL;
138 static char *
139 list_callback(int index, int *highlight, void *data)
140 {
141 static char buf[256];
143 if( help_text_rows<0 )
144 {
145 help_text_rows = 0;
146 while( help_text[help_text_rows].highlight != -1 )
147 help_text_rows++;
148 }
150 *highlight = 0;
151 if( index<help_text_rows )
152 {
153 *highlight = help_text[index].highlight > 0;
154 if( help_text[index].command == CMD_NONE )
155 {
156 if( help_text[index].text )
157 snprintf(buf, 256, "%28s", _(help_text[index].text));
158 else
159 if( help_text[index].highlight == 2 )
160 {
161 int i;
163 for(i=3; i<COLS-3 && i<256; i++)
164 buf[i]='-';
165 buf[i] = '\0';
166 }
167 else
168 strcpy(buf, " ");
169 return buf;
170 }
171 if( help_text[index].text )
172 snprintf(buf, 256,
173 "%20s : %s ",
174 get_key_names(help_text[index].command, TRUE),
175 _(help_text[index].text));
176 else
177 snprintf(buf, 256,
178 "%20s : %s ",
179 get_key_names(help_text[index].command, TRUE),
180 get_key_description(help_text[index].command));
181 return buf;
182 }
184 return NULL;
185 }
187 static void
188 help_init(WINDOW *w, int cols, int rows)
189 {
190 lw = list_window_init(w, cols, rows);
191 lw->flags = LW_HIDE_CURSOR;
192 }
194 static void
195 help_resize(int cols, int rows)
196 {
197 lw->cols = cols;
198 lw->rows = rows;
199 }
201 static void
202 help_exit(void)
203 {
204 list_window_free(lw);
205 }
208 static char *
209 help_title(char *str, size_t size)
210 {
211 return _("Help");
212 }
214 static void
215 help_paint(screen_t *screen, mpdclient_t *c)
216 {
217 lw->clear = 1;
218 list_window_paint(lw, list_callback, NULL);
219 wrefresh(lw->w);
220 }
222 static void
223 help_update(screen_t *screen, mpdclient_t *c)
224 {
225 if( lw->repaint )
226 {
227 list_window_paint(lw, list_callback, NULL);
228 wrefresh(lw->w);
229 lw->repaint = 0;
230 }
231 }
234 static int
235 help_cmd(screen_t *screen, mpdclient_t *c, command_t cmd)
236 {
237 lw->repaint=1;
238 switch(cmd)
239 {
240 case CMD_LIST_NEXT:
241 if( lw->start+lw->rows < help_text_rows )
242 lw->start++;
243 return 1;
244 case CMD_LIST_PREVIOUS:
245 if( lw->start >0 )
246 lw->start--;
247 return 1;
248 case CMD_LIST_FIRST:
249 lw->start = 0;
250 return 1;
251 case CMD_LIST_LAST:
252 lw->start = help_text_rows-lw->rows;
253 if( lw->start<0 )
254 lw->start = 0;
255 return 1;
256 case CMD_LIST_NEXT_PAGE:
257 lw->start = lw->start + lw->rows;
258 if( lw->start+lw->rows >= help_text_rows )
259 lw->start = help_text_rows-lw->rows;
260 if( lw->start<0 )
261 lw->start = 0;
262 return 1;
263 case CMD_LIST_PREVIOUS_PAGE:
264 lw->start = lw->start - lw->rows;
265 if( lw->start<0 )
266 lw->start = 0;
267 return 1;
268 default:
269 break;
270 }
272 lw->selected = lw->start+lw->rows;
273 if( screen_find(screen, c,
274 lw, help_text_rows,
275 cmd, list_callback) )
276 {
277 /* center the row */
278 lw->start = lw->selected-(lw->rows/2);
279 if( lw->start+lw->rows > help_text_rows )
280 lw->start = help_text_rows-lw->rows;
281 if( lw->start<0 )
282 lw->start=0;
283 return 1;
284 }
286 return 0;
287 }
289 static list_window_t *
290 help_lw(void)
291 {
292 return lw;
293 }
295 screen_functions_t *
296 get_screen_help(void)
297 {
298 static screen_functions_t functions;
300 memset(&functions, 0, sizeof(screen_functions_t));
301 functions.init = help_init;
302 functions.exit = help_exit;
303 functions.open = NULL;
304 functions.close = NULL;
305 functions.resize = help_resize;
306 functions.paint = help_paint;
307 functions.update = help_update;
308 functions.cmd = help_cmd;
309 functions.get_lw = help_lw;
310 functions.get_title = help_title;
312 return &functions;
313 }