screen_help.c

   1 /*
   2  * $Id: screen_help.c,v 1.8 2004/03/17 13:40:25 kalle Exp $
   3  *
   4  */
   5
   6 #include <stdlib.h>
   7 #include <string.h>
   8 #include <glib.h>
   9 #include <ncurses.h>
  10
  11 #include "config.h"
  12 #include "libmpdclient.h"
  13 #include "mpc.h"
  14 #include "command.h"
  15 #include "screen.h"
  16 #include "screen_help.h"
  17
  18 typedef struct
  19 {
  20   char highlight;
  21   command_t command;
  22   char *text;
  23 } help_text_row_t;
  24
  25 static help_text_row_t help_text[] =
  26 {
  27   { 1, CMD_NONE,  "          Keys   " },
  28   { 0, CMD_NONE,  "        --------" },
  29   { 0, CMD_STOP,           "Stop" },
  30   { 0, CMD_PAUSE,          "Pause" },
  31   { 0, CMD_TRACK_NEXT,     "Next track" },
  32   { 0, CMD_TRACK_PREVIOUS, "Prevoius track (back)" },
  33   { 0, CMD_VOLUME_DOWN,    "Volume down" },
  34   { 0, CMD_VOLUME_UP,      "Volume up" },
  35   { 0, CMD_NONE, " " },
  36   { 0, CMD_LIST_NEXT,      "Move cursor up" },
  37   { 0, CMD_LIST_PREVIOUS,  "Move cursor down" },
  38   { 0, CMD_LIST_FIND,      "Find" },
  39   { 0, CMD_LIST_FIND_NEXT, "Find again" },
  40   { 0, CMD_NONE, " " },
  41   { 0, CMD_SCREEN_NEXT,   "Change screen" },
  42   { 0, CMD_SCREEN_HELP,   "Help screen" },
  43   { 0, CMD_SCREEN_PLAY,   "Playlist screen" },
  44   { 0, CMD_SCREEN_FILE,   "Browse screen" },
  45   { 0, CMD_QUIT,          "Quit" },
  46   { 0, CMD_NONE, " " },
  47   { 0, CMD_NONE, " " },
  48   { 1, CMD_NONE, "    Keys - Playlist screen " },
  49   { 0, CMD_NONE, "  --------------------------" },
  50   { 0, CMD_PLAY,    "Play selected entry" },
  51   { 0, CMD_DELETE,  "Delete selected entry from platlist" },
  52   { 0, CMD_SHUFFLE, "Shuffle playlist" },
  53   { 0, CMD_CLEAR,   "Clear playlist" },
  54   { 0, CMD_REPEAT,  "Toggle repeat mode" },
  55   { 0, CMD_RANDOM,  "Toggle random mode" },
  56   { 0, CMD_NONE, " " },
  57   { 0, CMD_NONE, " " },
  58   { 1, CMD_NONE, "    Keys - Browse screen " },
  59   { 0, CMD_NONE, "  ------------------------" },
  60   { 0, CMD_PLAY,   "Change to selected directory" },
  61   { 0, CMD_SELECT, "Add/Remove selected file" },
  62   { 0, CMD_NONE, " " },
  63   { 0, CMD_NONE, " " },
  64   { 1, CMD_NONE, " " PACKAGE " version " VERSION },
  65   { 0, CMD_NONE, NULL }
  66 };
  67
  68 static int help_text_rows = -1;
  69
  70
  71
  72 static char *
  73 list_callback(int index, int *highlight, void *data)
  74 {
  75   static char buf[256];
  76
  77   if( help_text_rows<0 )
  78     {
  79       help_text_rows = 0;
  80       while( help_text[help_text_rows].text )
  81         help_text_rows++;
  82     }
  83
  84   *highlight = 0;
  85   if( index<help_text_rows )
  86     {
  87       *highlight = help_text[index].highlight;
  88       if( help_text[index].command == CMD_NONE )
  89         return help_text[index].text;
  90       snprintf(buf, 256,
  91                "%20s : %s",
  92                command_get_keys(help_text[index].command),
  93                help_text[index].text);
  94       return buf;
  95     }
  96
  97   return NULL;
  98 }
  99
 100
 101 void
 102 help_open(screen_t *screen, mpd_client_t *c)
 103 {
 104 }
 105
 106 void
 107 help_close(screen_t *screen, mpd_client_t *c)
 108 {
 109 }
 110
 111 void
 112 help_paint(screen_t *screen, mpd_client_t *c)
 113 {
 114   list_window_t *w = screen->helplist;
 115
 116   w->clear = 1;
 117   list_window_paint(screen->helplist, list_callback, NULL);
 118   wrefresh(screen->helplist->w);
 119 }
 120
 121 void
 122 help_update(screen_t *screen, mpd_client_t *c)
 123 {
 124   list_window_t *w = screen->helplist;
 125
 126   if( w->repaint )
 127     {
 128       list_window_paint(screen->helplist, list_callback, NULL);
 129       wrefresh(screen->helplist->w);
 130       w->repaint = 0;
 131     }
 132 }
 133
 134
 135 int
 136 help_cmd(screen_t *screen, mpd_client_t *c, command_t cmd)
 137 {
 138  switch(cmd)
 139     {
 140     case CMD_LIST_PREVIOUS:
 141       list_window_previous(screen->helplist);
 142       screen->helplist->repaint=1;
 143       break;
 144     case CMD_LIST_NEXT:
 145       list_window_next(screen->helplist, help_text_rows);
 146       screen->helplist->repaint=1;
 147       break;
 148     case CMD_LIST_FIRST:
 149       list_window_first(screen->helplist);
 150       screen->helplist->repaint  = 1;
 151       break;
 152     case CMD_LIST_LAST:
 153       list_window_last(screen->helplist, help_text_rows);
 154       screen->helplist->repaint  = 1;
 155       break;
 156     case CMD_LIST_PREVIOUS_PAGE:
 157       list_window_previous_page(screen->helplist);
 158       screen->helplist->repaint  = 1;
 159       break;
 160     case CMD_LIST_NEXT_PAGE:
 161       list_window_next_page(screen->helplist, help_text_rows);
 162       screen->helplist->repaint  = 1;
 163       break;
 164     case CMD_LIST_FIND:
 165       if( screen->findbuf )
 166         {
 167           free(screen->findbuf);
 168           screen->findbuf=NULL;
 169         }
 170       /* continue... */
 171     case CMD_LIST_FIND_NEXT:
 172       if( !screen->findbuf )
 173         screen->findbuf=screen_readln(screen->status_window.w, "/");
 174       if( list_window_find(screen->helplist,
 175                            list_callback,
 176                            c,
 177                            screen->findbuf) == 0 )
 178         {
 179           screen->helplist->repaint  = 1;
 180         }
 181       else
 182         {
 183           screen_status_printf("Unable to find \'%s\'", screen->findbuf);
 184           beep();
 185         }
 186       break;
 187     default:
 188       return 0;
 189     }
 190   return 1;
 191 }