90032cf9a5949f98c6eef9f90adf4289644ea5ba
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_PREVIOUS,NULL },
53 { 0, CMD_SCREEN_NEXT, NULL },
54 { 0, CMD_SCREEN_HELP, NULL },
55 { 0, CMD_SCREEN_PLAY, NULL },
56 { 0, CMD_SCREEN_FILE, NULL },
57 #ifdef ENABLE_SEARCH_SCREEN
58 { 0, CMD_SCREEN_SEARCH, NULL },
59 #endif
60 #ifdef ENABLE_CLOCK_SCREEN
61 { 0, CMD_SCREEN_CLOCK, NULL },
62 #endif
63 #ifdef ENABLE_KEYDEF_SCREEN
64 { 0, CMD_SCREEN_KEYDEF, NULL },
65 #endif
67 { 0, CMD_NONE, NULL },
68 { 0, CMD_NONE, NULL },
69 { 1, CMD_NONE, N_("Keys - Global") },
70 { 2, CMD_NONE, NULL },
71 { 0, CMD_STOP, NULL },
72 { 0, CMD_PAUSE, NULL },
73 { 0, CMD_TRACK_NEXT, NULL },
74 { 0, CMD_TRACK_PREVIOUS, NULL },
75 { 0, CMD_SEEK_FORWARD, NULL },
76 { 0, CMD_SEEK_BACKWARD, NULL },
77 { 0, CMD_VOLUME_DOWN, NULL },
78 { 0, CMD_VOLUME_UP, NULL },
79 { 0, CMD_NONE, NULL },
80 { 0, CMD_REPEAT, NULL },
81 { 0, CMD_RANDOM, NULL },
82 { 0, CMD_CROSSFADE, NULL },
83 { 0, CMD_SHUFFLE, NULL },
84 { 0, CMD_DB_UPDATE, NULL },
85 { 0, CMD_NONE, NULL },
86 { 0, CMD_LIST_FIND, NULL },
87 { 0, CMD_LIST_RFIND, NULL },
88 { 0, CMD_LIST_FIND_NEXT, NULL },
89 { 0, CMD_LIST_RFIND_NEXT, NULL },
90 { 0, CMD_TOGGLE_FIND_WRAP, NULL },
91 { 0, CMD_NONE, NULL },
92 { 0, CMD_QUIT, NULL },
94 { 0, CMD_NONE, NULL },
95 { 0, CMD_NONE, NULL },
96 { 1, CMD_NONE, N_("Keys - Playlist screen") },
97 { 2, CMD_NONE, NULL },
98 { 0, CMD_PLAY, N_("Play") },
99 { 0, CMD_DELETE, NULL },
100 { 0, CMD_CLEAR, NULL },
101 { 0, CMD_LIST_MOVE_UP, N_("Move song up") },
102 { 0, CMD_LIST_MOVE_DOWN, N_("Move song down") },
103 { 0, CMD_ADD, NULL },
104 { 0, CMD_SAVE_PLAYLIST, NULL },
105 { 0, CMD_SCREEN_UPDATE, N_("Center") },
106 { 0, CMD_TOGGLE_AUTOCENTER, NULL },
108 { 0, CMD_NONE, NULL },
109 { 0, CMD_NONE, NULL },
110 { 1, CMD_NONE, N_("Keys - Browse screen") },
111 { 2, CMD_NONE, NULL },
112 { 0, CMD_PLAY, N_("Enter directory/Select and play song") },
113 { 0, CMD_SELECT, NULL },
114 { 0, CMD_SAVE_PLAYLIST, NULL },
115 { 0, CMD_DELETE, N_("Delete playlist") },
116 { 0, CMD_SCREEN_UPDATE, NULL },
118 #ifdef ENABLE_SEARCH_SCREEN
119 { 0, CMD_NONE, NULL },
120 { 0, CMD_NONE, NULL },
121 { 1, CMD_NONE, N_("Keys - Search screen") },
122 { 2, CMD_NONE, NULL },
123 { 0, CMD_SCREEN_SEARCH, N_("Search") },
124 { 0, CMD_PLAY, N_("Select and play") },
125 { 0, CMD_SELECT, NULL },
126 { 0, CMD_SEARCH_MODE, NULL },
127 #endif
128 #ifdef ENABLE_LYRICS_SCREEN
129 { 0, CMD_NONE, NULL },
130 { 0, CMD_NONE, NULL },
131 { 1, CMD_NONE, N_("Keys - Lyrics screen") },
132 { 2, CMD_NONE, NULL },
133 { 0, CMD_SCREEN_LYRICS, N_("View Lyrics") },
134 { 0, CMD_SELECT, N_("(Re)load lyrics") },
135 { 0, CMD_INTERRUPT, N_("Interrupt retrieval") },
136 #endif
137 { 0, CMD_NONE, NULL },
138 {-1, CMD_NONE, NULL }
139 };
141 static int help_text_rows = -1;
142 static list_window_t *lw = NULL;
145 static char *
146 list_callback(int index, int *highlight, void *data)
147 {
148 static char buf[512];
150 if( help_text_rows<0 )
151 {
152 help_text_rows = 0;
153 while( help_text[help_text_rows].highlight != -1 )
154 help_text_rows++;
155 }
157 *highlight = 0;
158 if( index<help_text_rows )
159 {
160 *highlight = help_text[index].highlight > 0;
161 if( help_text[index].command == CMD_NONE )
162 {
163 if( help_text[index].text )
164 g_snprintf(buf, sizeof(buf), " %s", _(help_text[index].text));
165 else
166 if( help_text[index].highlight == 2 )
167 {
168 int i;
170 for(i=3; i<COLS-3 && i<sizeof(buf); i++)
171 buf[i]='-';
172 buf[i] = '\0';
173 }
174 else
175 g_strlcpy(buf, " ", sizeof(buf));
176 return buf;
177 }
178 if( help_text[index].text )
179 g_snprintf(buf, sizeof(buf),
180 "%20s : %s ",
181 get_key_names(help_text[index].command, TRUE),
182 _(help_text[index].text));
183 else
184 g_snprintf(buf, sizeof(buf),
185 "%20s : %s ",
186 get_key_names(help_text[index].command, TRUE),
187 get_key_description(help_text[index].command));
188 return buf;
189 }
191 return NULL;
192 }
194 static void
195 help_init(WINDOW *w, int cols, int rows)
196 {
197 lw = list_window_init(w, cols, rows);
198 lw->flags = LW_HIDE_CURSOR;
199 }
201 static void
202 help_resize(int cols, int rows)
203 {
204 lw->cols = cols;
205 lw->rows = rows;
206 }
208 static void
209 help_exit(void)
210 {
211 list_window_free(lw);
212 }
215 static char *
216 help_title(char *str, size_t size)
217 {
218 return _("Help");
219 }
221 static void
222 help_paint(screen_t *screen, mpdclient_t *c)
223 {
224 lw->clear = 1;
225 list_window_paint(lw, list_callback, NULL);
226 wrefresh(lw->w);
227 }
229 static void
230 help_update(screen_t *screen, mpdclient_t *c)
231 {
232 if( lw->repaint )
233 {
234 list_window_paint(lw, list_callback, NULL);
235 wrefresh(lw->w);
236 lw->repaint = 0;
237 }
238 }
241 static int
242 help_cmd(screen_t *screen, mpdclient_t *c, command_t cmd)
243 {
244 lw->repaint=1;
245 switch(cmd)
246 {
247 case CMD_LIST_NEXT:
248 if( lw->start+lw->rows < help_text_rows )
249 lw->start++;
250 return 1;
251 case CMD_LIST_PREVIOUS:
252 if( lw->start >0 )
253 lw->start--;
254 return 1;
255 case CMD_LIST_FIRST:
256 lw->start = 0;
257 return 1;
258 case CMD_LIST_LAST:
259 lw->start = help_text_rows-lw->rows;
260 if( lw->start<0 )
261 lw->start = 0;
262 return 1;
263 case CMD_LIST_NEXT_PAGE:
264 lw->start = lw->start + lw->rows;
265 if( lw->start+lw->rows >= help_text_rows )
266 lw->start = help_text_rows-lw->rows;
267 if( lw->start<0 )
268 lw->start = 0;
269 return 1;
270 case CMD_LIST_PREVIOUS_PAGE:
271 lw->start = lw->start - lw->rows;
272 if( lw->start<0 )
273 lw->start = 0;
274 return 1;
275 default:
276 break;
277 }
279 lw->selected = lw->start+lw->rows;
280 if( screen_find(screen, c,
281 lw, help_text_rows,
282 cmd, list_callback, NULL) )
283 {
284 /* center the row */
285 lw->start = lw->selected-(lw->rows/2);
286 if( lw->start+lw->rows > help_text_rows )
287 lw->start = help_text_rows-lw->rows;
288 if( lw->start<0 )
289 lw->start=0;
290 return 1;
291 }
293 return 0;
294 }
296 static list_window_t *
297 help_lw(void)
298 {
299 return lw;
300 }
302 screen_functions_t *
303 get_screen_help(void)
304 {
305 static screen_functions_t functions;
307 memset(&functions, 0, sizeof(screen_functions_t));
308 functions.init = help_init;
309 functions.exit = help_exit;
310 functions.open = NULL;
311 functions.close = NULL;
312 functions.resize = help_resize;
313 functions.paint = help_paint;
314 functions.update = help_update;
315 functions.cmd = help_cmd;
316 functions.get_lw = help_lw;
317 functions.get_title = help_title;
319 return &functions;
320 }