research.m1stereo.tv/gitweb/ - rugen/blob - src/page_status.c

   1 /*
   2  * page_status.c -- Status Page Handling
   3  * Copyright (C) 2002-2003 Charles Yates <charles.yates@pandora.be>
   4  * Copyright (C) 2010 Dan Dennedy <dan@dennedy.org>
   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  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 #ifdef HAVE_CONFIG_H
  22 #  include <config.h>
  23 #endif
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <gtk/gtk.h>
  29
  30 #include "interface.h"
  31 #include "support.h"
  32 #include "dv1394app.h"
  33 #include "page.h"
  34
  35 typedef struct
  36 {
  37         struct page_t parent;
  38         dv1394app app;
  39         GtkWidget *widget;
  40         mvcp status;
  41         int terminated;
  42         pthread_t status_thread;
  43         guint context;
  44         int unit;
  45         int count;
  46         struct page_t *parent_page;
  47 }
  48 *page_status, page_status_t;
  49
  50 static GtkWidget *this_page_get_widget( page );
  51
  52 /** Show the status associated to a unit.
  53 */
  54
  55 static char* status_to_text( mvcp_status status )
  56 {
  57         switch( status->status )
  58         {
  59                 case unit_offline:      return "offline";       break;
  60                 case unit_undefined:    return "undefined";     break;
  61                 case unit_not_loaded:   return "unloaded";      break;
  62                 case unit_stopped:      return "stopped";       break;
  63                 case unit_playing:      return "playing";       break;
  64                 case unit_paused:       return "paused";        break;
  65                 case unit_disconnected: return "disconnect";    break;
  66                 case unit_unknown:      return "unknown";       break;
  67         }
  68         return "unknown";
  69 }
  70
  71 static void format_status_string(char* buf, int size, mvcp_status status , char* sep)
  72 {
  73         char tc1[12], tc2[12], tc3[12];
  74
  75         snprintf( buf, size,
  76                 "[%s]%sIN:%s%sPOS:%s%sOUT:%s%s%s%s",
  77                 status_to_text( status ), sep,
  78                 frames2tc(status->in,       status->fps, tc1), sep,
  79                 frames2tc(status->position, status->fps, tc2), sep,
  80                 frames2tc(status->out,      status->fps, tc3), sep,
  81                 status->clip, sep
  82         );
  83
  84 }
  85
  86 static int show_status( page_status this, mvcp_status status )
  87 {
  88         GtkWidget *widget = this_page_get_widget( ( page )this );
  89         char temp[ 1024 ] = "";
  90         char temp2[ 1024 ];
  91         char label_name[ 256 ];
  92
  93         format_status_string(temp, sizeof(temp), status , "\n");
  94         sprintf( label_name, "label_unit_%d", status->unit );
  95
  96         gdk_threads_enter();
  97         widget = lookup_widget( widget, label_name );
  98         gtk_label_set_text( GTK_LABEL( widget ), temp );
  99         if ( status->unit == dv1394app_get_selected_unit( this->app ) )
 100         {
 101                 format_status_string(temp, sizeof(temp), status , " ");
 102                 sprintf( temp2, "U%d - %s", status->unit, temp );
 103                 widget = lookup_widget( dv1394app_get_widget( this->app ), "statusbar" );
 104                 gtk_statusbar_pop( GTK_STATUSBAR( widget ), this->context );
 105                 gtk_statusbar_push( GTK_STATUSBAR( widget ), this->context, temp2 );
 106                 dv1394app_show_status( this->app, status );
 107         }
 108         gdk_flush();
 109         gdk_threads_leave();
 110
 111         return status->unit >= this->count;
 112 }
 113
 114 static void show_units( page_status this, gboolean active )
 115 {
 116         int index = 0;
 117         int index2 = 0;
 118
 119         GtkWidget *widget;
 120         char temp[ 1024 ] = "";
 121         char button_name[ 256 ];
 122
 123         mvcp_units units = NULL;
 124         mvcp_unit_entry_t unit;
 125         int unit_count = 0;
 126
 127         mvcp_nodes nodes = NULL;
 128         mvcp_node_entry_t node;
 129         int node_count = 0;
 130
 131         if ( active )
 132         {
 133                 units = mvcp_units_init( this->status );
 134                 unit_count = mvcp_units_count( units );
 135                 nodes = mvcp_nodes_init( this->status );
 136                 node_count = mvcp_nodes_count( nodes );
 137                 this->count = unit_count;
 138         }
 139
 140         gdk_threads_enter();
 141
 142         for ( index = 0; index < MAX_UNITS; index ++ )
 143         {
 144                 if ( index < unit_count )
 145                 {
 146                         mvcp_units_get( units, index, &unit );
 147
 148                         for ( index2 = 0; index2 < node_count; index2 ++ )
 149                         {
 150                                 mvcp_nodes_get( nodes, index2, &node );
 151                                 if ( !strcmp( node.guid, unit.guid ) )
 152                                         break;
 153                         }
 154
 155                         if ( index2 < node_count )
 156                                 sprintf( temp, "U%d - %s (%s)", unit.unit, node.name, unit.guid );
 157                         else
 158                                 sprintf( temp, "U%d - %s", unit.unit, unit.guid );
 159
 160                         sprintf( button_name, "radiobutton_%d", index );
 161                         widget = lookup_widget( this_page_get_widget( ( page )this ), button_name );
 162                         gtk_widget_show( widget );
 163                         gtk_button_set_label( GTK_BUTTON( widget ), temp );
 164                         sprintf( button_name, "label_unit_%d", index );
 165                         widget = lookup_widget( this_page_get_widget( ( page )this ), button_name );
 166                         gtk_widget_show( widget );
 167                 }
 168                 else
 169                 {
 170                         sprintf( button_name, "radiobutton_%d", index );
 171                         widget = lookup_widget( this_page_get_widget( ( page )this ), button_name );
 172                         gtk_widget_hide( widget );
 173                         sprintf( button_name, "label_unit_%d", index );
 174                         widget = lookup_widget( this_page_get_widget( ( page )this ), button_name );
 175                         gtk_widget_hide( widget );
 176                 }
 177         }
 178         gdk_flush();
 179         gdk_threads_leave();
 180
 181         mvcp_notifier notifier = mvcp_get_notifier( this->status );
 182         mvcp_status_t status;
 183
 184         for ( index = 0; index < MAX_UNITS; index ++ )
 185         {
 186                 status.unit = index;
 187                 if ( !active )
 188                         status.status = unit_disconnected;
 189                 else
 190                         mvcp_notifier_get( notifier, &status, index );
 191                 show_status( this, &status );
 192         }
 193
 194         if ( active )
 195         {
 196                 mvcp_nodes_close( nodes );
 197                 mvcp_units_close( units );
 198         }
 199 }
 200
 201 /** Status monitoring thread.
 202 */
 203
 204 static void *status_thread( void *arg )
 205 {
 206         page_status this = arg;
 207         mvcp_notifier notifier = mvcp_get_notifier( this->status );
 208         mvcp_status_t status;
 209
 210         show_units( this, TRUE );
 211
 212         while ( !this->terminated )
 213         {
 214                 char buf[32];
 215
 216                 if ( !this->app->eof[this->app->selected_unit] &&
 217                         mvcp_unit_get( this->app->command, this->app->selected_unit,
 218                         "eof", buf, sizeof(buf) ) != -1)
 219                         this->app->eof[this->app->selected_unit] = buf[0];
 220
 221                 if ( mvcp_notifier_wait( notifier, &status ) != -1 )
 222                 {
 223                         if ( status.status == unit_disconnected )
 224                         {
 225                                 this->app->eof[this->app->selected_unit] = 0;
 226                                 break;
 227                         }
 228                         if ( show_status( this, &status ) )
 229                                 show_units( this, TRUE );
 230                 }
 231         }
 232
 233         show_units( this, FALSE );
 234
 235         if ( !this->terminated )
 236         {
 237                 GtkWidget *widget = lookup_widget( dv1394app_get_widget( this->app ), "button_disconnect" );
 238                 gdk_threads_enter();
 239                 gtk_signal_emit_by_name( GTK_OBJECT( widget ), "clicked" );
 240                 gdk_threads_leave();
 241         }
 242
 243         return NULL;
 244 }
 245
 246 void on_radiobutton_toggled( GtkToggleButton *togglebutton, gpointer user_data )
 247 {
 248         page_status this = user_data;
 249         dv1394app app = this->app;
 250         int index = 0;
 251         GtkWidget *widget = this_page_get_widget( ( page )this );
 252         for ( index = 0; index < MAX_UNITS; index ++ )
 253         {
 254                 char button_name[ 256 ];
 255                 sprintf( button_name, "radiobutton_%d", index );
 256                 if ( lookup_widget( widget, button_name ) == GTK_WIDGET( togglebutton ) )
 257                         break;
 258         }
 259         if ( index < MAX_UNITS )
 260         {
 261                 mvcp_status_t status;
 262                 mvcp_notifier notifier = mvcp_get_notifier( this->status );
 263                 dv1394app_on_unit_change( app, index );
 264                 mvcp_notifier_get( notifier, &status, index );
 265                 gdk_threads_leave( );
 266                 show_status( this, &status );
 267                 gdk_threads_enter( );
 268         }
 269 }
 270
 271 static GtkWidget *this_page_get_widget( page super )
 272 {
 273         page_status this = ( page_status )super;
 274         if ( this->widget == NULL )
 275                 this->widget = this->parent_page->get_widget(this->parent_page);
 276         return this->widget;
 277 }
 278
 279 static void this_page_get_toolbar_info( page super, GtkIconSize size, GtkWidget **icon, char **label )
 280 {
 281         *icon = gtk_image_new_from_stock( "gtk-home",  size );
 282         *label = _("_Units");
 283 }
 284
 285 static void this_page_on_connect( page super )
 286 {
 287         page_status this = ( page_status )super;
 288         if ( this->terminated )
 289         {
 290                 this->terminated = 0;
 291                 this->status = mvcp_init( dv1394app_get_parser( this->app ) );
 292                 pthread_create( &this->status_thread, NULL, status_thread, this );
 293         }
 294 }
 295
 296 static void this_page_on_disconnect( page super )
 297 {
 298         page_status this = ( page_status )super;
 299         if ( !this->terminated )
 300         {
 301                 GtkWidget *widget;
 302                 this->terminated = 1;
 303                 gdk_threads_leave();
 304                 pthread_join( this->status_thread, NULL );
 305                 gdk_threads_enter();
 306                 mvcp_close( this->status );
 307                 widget = lookup_widget( dv1394app_get_widget( this->app ), "statusbar" );
 308                 gtk_statusbar_push( GTK_STATUSBAR( widget ), this->context, "Disconnected." );
 309         }
 310 }
 311
 312 static void this_page_close( page super )
 313 {
 314         page_status this = ( page_status )super;
 315         if ( this != NULL )
 316                 free( this );
 317 }
 318
 319 page page_status_init( dv1394app app, struct page_t *parent_page )
 320 {
 321         page_status this = calloc( 1, sizeof( page_status_t ) );
 322         int index = 0;
 323         GtkWidget *widget;
 324
 325         this->parent_page = parent_page;
 326         this->parent.get_widget = this_page_get_widget;
 327         this->parent.get_toolbar_info = this_page_get_toolbar_info;
 328         this->parent.on_connect = this_page_on_connect;
 329         this->parent.on_disconnect = this_page_on_disconnect;
 330         this->parent.close = this_page_close;
 331         this->app = app;
 332         this->terminated = 1;
 333
 334         for ( index = 0; index < MAX_UNITS; index ++ )
 335         {
 336                 char button_name[ 256 ];
 337                 sprintf( button_name, "radiobutton_%d", index );
 338                 widget = lookup_widget( this_page_get_widget( ( page )this ), button_name );
 339                 gtk_signal_connect( GTK_OBJECT( widget ), "toggled", GTK_SIGNAL_FUNC( on_radiobutton_toggled ), this );
 340         }
 341
 342         widget = lookup_widget( dv1394app_get_widget( this->app ), "statusbar" );
 343         this->context = gtk_statusbar_get_context_id( GTK_STATUSBAR( widget ), "info" );
 344         gtk_statusbar_push( GTK_STATUSBAR( widget ), this->context, "Disconnected." );
 345
 346         return ( page )this;
 347 }