src/lirc.c

   1 /*
   2  * Geeqie
   3  * Copyright (C) 2008 - 2012 The Geeqie Team
   4  *
   5  */
   6
   7 #include <glib/gprintf.h>
   8
   9 #include "lirc.h"
  10
  11 #include "misc.h"
  12
  13 #ifdef HAVE_LIRC
  14 #include <lirc/lirc_client.h>
  15 #include "layout_image.h"
  16
  17 gint lirc_fd = -1;
  18 struct lirc_config *config = NULL;
  19 guint input_tag = 0; /* event source id */
  20 GIOChannel *gio_chan;
  21
  22 /*
  23  *-----------------------------------------------------------------------------
  24  * LIRC callback
  25  *-----------------------------------------------------------------------------
  26  */
  27
  28 static void lirc_cleanup(void)
  29 {
  30         if (config)
  31                 {
  32                 g_source_remove(input_tag);
  33                 lirc_freeconfig(config);
  34                 config = NULL;
  35                 }
  36         if (lirc_fd != -1)
  37                 {
  38                 lirc_deinit();
  39                 lirc_fd = -1;
  40                 }
  41         if (gio_chan)
  42                 {
  43                 g_io_channel_shutdown(gio_chan, TRUE, NULL);
  44                 g_io_channel_unref(gio_chan);
  45                 }
  46 }
  47
  48 static gboolean lirc_input_callback(GIOChannel *source, GIOCondition condition,
  49                                     gpointer data)
  50 {
  51         LayoutWindow *lw = data;
  52         gchar *ptr;
  53         gint ret;
  54         gint x = 0;
  55         gint y = 0;
  56
  57         /* LIRC code and corresponding geeqie command (and parameters)*/
  58         gchar *code;
  59         gchar *cmd;
  60
  61         /* parameters for geeqie command */
  62         gint i_parm;
  63         gfloat fl_parm;
  64
  65         while ((ret = lirc_nextcode(&code)) == 0 && code)
  66                 {
  67                 while ((ret = lirc_code2char(config, code, &cmd)) == 0 && cmd)
  68                         {
  69                         if (g_ascii_strncasecmp("LEFT", cmd, 4) == 0)
  70                                 {
  71                                 ptr = cmd + 4;
  72                                 while (g_ascii_isspace(*ptr)) ptr++;
  73                                 i_parm = atoi(ptr);
  74
  75                                 if (i_parm <= 0) i_parm = 1;
  76                                 x -= i_parm;
  77                                 }
  78                         else if (g_ascii_strncasecmp("RIGHT", cmd, 5) == 0)
  79                                 {
  80                                 ptr = cmd + 5;
  81                                 while (g_ascii_isspace(*ptr)) ptr++;
  82                                 i_parm = atoi(ptr);
  83
  84                                 if (i_parm <= 0) i_parm = 1;
  85                                 x += i_parm;
  86                                 }
  87                         else if (g_ascii_strncasecmp("UP", cmd, 2) == 0)
  88                                 {
  89                                 ptr = cmd + 2;
  90                                 while (g_ascii_isspace(*ptr)) ptr++;
  91                                 i_parm = atoi(ptr);
  92
  93                                 if (i_parm <= 0) i_parm = 1;
  94                                 y -= i_parm;
  95                                 }
  96                         else if (g_ascii_strncasecmp("DOWN", cmd, 4) == 0)
  97                                 {
  98                                 ptr = cmd + 4;
  99                                 while (g_ascii_isspace(*ptr)) ptr++;
 100                                 i_parm = atoi(ptr);
 101
 102                                 if (i_parm <= 0) i_parm = 1;
 103                                 y += i_parm;
 104                                 }
 105                         else if (g_ascii_strcasecmp("PREV", cmd) == 0)
 106                                 {
 107                                 layout_image_prev(lw);
 108                                 }
 109                         else if (g_ascii_strcasecmp("NEXT", cmd) == 0)
 110                                 {
 111                                 layout_image_next(lw);
 112                                 }
 113                         else if (g_ascii_strncasecmp("ZOOM_IN", cmd, 7) == 0)
 114                                 {
 115                                 ptr = cmd + 7;
 116                                 while (g_ascii_isspace(*ptr)) ptr++;
 117                                 fl_parm = atoi(ptr) / 10.0;
 118
 119                                 if (fl_parm <= 0.01) fl_parm = get_zoom_increment();
 120                                 layout_image_zoom_adjust(lw, fl_parm, FALSE);
 121                                 }
 122                         else if (g_ascii_strncasecmp("ZOOM_OUT", cmd, 8) == 0)
 123                                 {
 124                                 ptr = cmd + 8;
 125                                 while (g_ascii_isspace(*ptr)) ptr++;
 126                                 fl_parm = atoi(ptr) / 10.0;
 127
 128                                 if (fl_parm <= 0.01) fl_parm = get_zoom_increment();
 129                                 layout_image_zoom_adjust(lw, -fl_parm, FALSE);
 130                                 }
 131                         else if (g_ascii_strcasecmp("ZOOM_MAX", cmd) == 0)
 132                                 {
 133                                 layout_image_zoom_set(lw, 0.0, FALSE);
 134                                 }
 135                         else if (g_ascii_strcasecmp("FULL_SCREEN", cmd) == 0)
 136                                 {
 137                                 layout_image_full_screen_toggle(lw);
 138                                 }
 139                         else if (g_ascii_strncasecmp("SET_ZOOM", cmd, 8) == 0)
 140                                 {
 141                                 ptr = cmd + 8;
 142                                 while (g_ascii_isspace(*ptr)) ptr++;
 143                                 i_parm = atoi(ptr);
 144
 145                                 if (i_parm <= 0) i_parm = 1;
 146                                 layout_image_zoom_set(lw, 1.0, FALSE);
 147                                 }
 148                         else if (g_ascii_strncasecmp("SET_INV_ZOOM", cmd, 12) == 0)
 149                                 {
 150                                 ptr = cmd + 12;
 151                                 while (g_ascii_isspace(*ptr)) ptr++;
 152                                 i_parm = atoi(ptr);
 153
 154                                 if (i_parm <= 0) i_parm = 1;
 155                                 layout_image_zoom_set(lw, -i_parm, FALSE);
 156                                 }
 157                         else if (g_ascii_strcasecmp("FIRST", cmd) == 0)
 158                                 {
 159                                 layout_image_first(lw);
 160                                 }
 161                         else if (g_ascii_strcasecmp("LAST", cmd) == 0)
 162                                 {
 163                                 layout_image_last(lw);
 164                                 }
 165                         else if (g_ascii_strcasecmp("PAUSE", cmd) == 0)
 166                                 {
 167                                 layout_image_slideshow_pause_toggle(lw);
 168                                 }
 169                         else if (g_ascii_strcasecmp("ROTATE_90", cmd) == 0)
 170                                 {
 171                                 layout_image_alter_orientation(lw, ALTER_ROTATE_90);
 172                                 }
 173                         else if (g_ascii_strcasecmp("ROTATE_90_CC", cmd) == 0)
 174                                 {
 175                                 layout_image_alter_orientation(lw, ALTER_ROTATE_90_CC);
 176                                 }
 177                         else if (g_ascii_strcasecmp("INFO", cmd) == 0)
 178                                 {
 179                                 layout_image_overlay_toggle(lw);
 180                                 }
 181                         else if (g_ascii_strcasecmp("EXIT", cmd) == 0)
 182                                 {
 183                                 exit_program();
 184                                 }
 185                         }
 186                 free(code);
 187                 if (ret == -1) break;
 188                 }
 189         if (x != 0 || y != 0)
 190                 {
 191                 layout_image_scroll(lw, x, y, FALSE);
 192                 }
 193
 194         if (ret == -1)
 195                 {
 196                 /* something went badly wrong */
 197                 g_fprintf(stderr, _("disconnected from LIRC\n"));
 198                 lirc_cleanup();
 199                 return (gboolean)FALSE;
 200                 }
 201         return (gboolean)TRUE;
 202 }
 203
 204 void layout_image_lirc_init(LayoutWindow *lw)
 205 {
 206         gint flags;
 207
 208         DEBUG_1("Initializing LIRC...");
 209         lirc_fd = lirc_init(GQ_APPNAME_LC, get_debug_level() > 0);
 210         if (lirc_fd == -1)
 211                 {
 212                 g_fprintf(stderr, _("Could not init LIRC support\n"));
 213                 return;
 214                 }
 215         if (lirc_readconfig(NULL, &config, NULL) == -1)
 216                 {
 217                 lirc_deinit();
 218                 g_fprintf(stderr,
 219                         _("could not read LIRC config file\n"
 220                         "please read the documentation of LIRC to \n"
 221                         "know how to create a proper config file\n"));
 222                 return;
 223                 }
 224         gio_chan = g_io_channel_unix_new(lirc_fd);
 225         input_tag = g_io_add_watch(gio_chan, G_IO_IN,
 226                                    lirc_input_callback, lw);
 227         fcntl(lirc_fd, F_SETOWN, getpid());
 228         flags = fcntl(lirc_fd, F_GETFL, 0);
 229         if (flags != -1) fcntl(lirc_fd, F_SETFL, flags|O_NONBLOCK);
 230         fflush(stderr);
 231 }
 232
 233 #endif /* HAVE_LIRC */
 234 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */