git.sesse.net Git - vlc/blob - plugins/gtk/gtk_preferences.c

   1 /*****************************************************************************
   2  * gtk_preferences.c: functions to handle the preferences dialog box.
   3  *****************************************************************************
   4  * Copyright (C) 2000, 2001 VideoLAN
   5  * $Id: gtk_preferences.c,v 1.34 2002/07/11 19:28:13 sam Exp $
   6  *
   7  * Authors: Gildas Bazin <gbazin@netcourrier.com>
   8  *          Loïc Minier <lool@via.ecp.fr>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble: Our main job is to build a nice interface from the modules config
  27  *   structure. Once this is done, we need to track each change made by the
  28  *   user to the data contained in this interface so that when/if he decides to
  29  *   apply his changes we can quickly commit them into the modules config
  30  *   structure. (for this last task we use a GHashTable to accumulate the
  31  *   changes. To commit them, we then just have to circle through it )
  32  *
  33  *****************************************************************************/
  34 #include <sys/types.h>                                              /* off_t */
  35 #include <stdlib.h>
  36
  37 #include <vlc/vlc.h>
  38 #include <vlc/intf.h>
  39
  40 #ifdef MODULE_NAME_IS_gnome
  41 #   include <gnome.h>
  42 #else
  43 #   include <gtk/gtk.h>
  44 #endif
  45
  46 #include <string.h>
  47
  48 #include "gtk_support.h"
  49 #include "gtk_common.h"
  50 #include "gtk_preferences.h"
  51
  52 /* local functions */
  53 static void GtkCreateConfigDialog( char *, intf_thread_t * );
  54
  55 static void GtkConfigOk          ( GtkButton *, gpointer );
  56 static void GtkConfigApply       ( GtkButton *, gpointer );
  57 static void GtkConfigCancel      ( GtkButton *, gpointer );
  58 static void GtkConfigSave        ( GtkButton *, gpointer );
  59
  60 static void GtkConfigDialogDestroyed ( GtkObject *, gpointer );
  61
  62 static void GtkStringChanged     ( GtkEditable *, gpointer );
  63 static void GtkIntChanged        ( GtkEditable *, gpointer );
  64 static void GtkFloatChanged      ( GtkEditable *, gpointer );
  65 static void GtkBoolChanged       ( GtkToggleButton *, gpointer );
  66
  67 static void GtkFreeHashTable     ( GtkObject *object );
  68 static void GtkFreeHashValue     ( gpointer, gpointer, gpointer );
  69 static gboolean GtkSaveHashValue ( gpointer, gpointer, gpointer );
  70
  71 static void GtkModuleConfigure   ( GtkButton *, gpointer );
  72 static void GtkModuleSelected    ( GtkButton *, gpointer );
  73 static void GtkModuleHighlighted ( GtkCList *, int, int, GdkEventButton *,
  74                                    gpointer );
  75
  76 /****************************************************************************
  77  * Callback for menuitems: display configuration interface window
  78  ****************************************************************************/
  79 void GtkPreferencesShow( GtkMenuItem * menuitem, gpointer user_data )
  80 {
  81     intf_thread_t * p_intf;
  82
  83     p_intf = GtkGetIntf( menuitem );
  84
  85     GtkCreateConfigDialog( "main", p_intf );
  86 }
  87
  88 /****************************************************************************
  89  * GtkCreateConfigDialog: dynamically creates the configuration dialog
  90  * box from all the configuration data provided by the selected module.
  91  ****************************************************************************/
  92
  93 /* create a new tooltipped area */
  94 #define TOOLTIP( text )                                                   \
  95     /* create an event box to catch some events */                        \
  96     item_event_box = gtk_event_box_new();                                 \
  97     /* add a tooltip on mouseover */                                      \
  98     gtk_tooltips_set_tip( p_intf->p_sys->p_tooltips,                      \
  99                           item_event_box, text, "" );                     \
 100     gtk_container_set_border_width( GTK_CONTAINER(item_event_box), 4 );
 101
 102 /* draws a right aligned label in side of a widget */
 103 #define LABEL_AND_WIDGET( label_text, widget, tooltip )                   \
 104     gtk_table_resize( GTK_TABLE(category_table), ++rows, 2 );             \
 105     item_align = gtk_alignment_new( 1, .5, 0, 0 );                        \
 106     item_label = gtk_label_new( label_text );                             \
 107     gtk_container_add( GTK_CONTAINER(item_align), item_label );           \
 108     gtk_table_attach_defaults( GTK_TABLE(category_table), item_align,     \
 109                                0, 1, rows - 1, rows );                    \
 110     item_align = gtk_alignment_new( 0, .5, .5, 0 );                       \
 111     gtk_container_add( GTK_CONTAINER(item_align), widget );               \
 112     TOOLTIP(tooltip)                                                      \
 113     gtk_container_add( GTK_CONTAINER(item_event_box), item_align );       \
 114     gtk_table_attach_defaults( GTK_TABLE(category_table), item_event_box, \
 115                                1, 2, rows - 1, rows );
 116
 117 static void GtkCreateConfigDialog( char *psz_module_name,
 118                                    intf_thread_t *p_intf )
 119 {
 120     module_t *p_module, *p_module_bis;
 121     module_config_t *p_item;
 122
 123     guint rows = 0;
 124
 125     GHashTable *config_hash_table;
 126
 127     GtkWidget *item_event_box;
 128
 129     GtkWidget *config_dialog;
 130     GtkWidget *config_dialog_vbox;
 131     GtkWidget *config_notebook;
 132
 133     GtkWidget *category_table = NULL;
 134     GtkWidget *category_label = NULL;
 135
 136 #ifndef MODULE_NAME_IS_gnome
 137     GtkWidget *dialog_action_area;
 138 #endif
 139
 140     GtkWidget *ok_button;
 141     GtkWidget *apply_button;
 142     GtkWidget *save_button;
 143     GtkWidget *cancel_button;
 144
 145     GtkWidget *item_align;
 146     GtkWidget *item_frame;
 147     GtkWidget *item_hbox;
 148     GtkWidget *item_label;
 149     GtkWidget *item_vbox;
 150     GtkWidget *item_combo;
 151     GtkWidget *string_entry;
 152     GtkWidget *integer_spinbutton;
 153     GtkWidget *float_spinbutton;
 154     GtkObject *item_adj;
 155     GtkWidget *bool_checkbutton;
 156     GtkWidget *module_clist;
 157     GtkWidget *module_config_button;
 158     GtkWidget *module_select_button;
 159
 160     gint category_max_height;
 161
 162     /* Check if the dialog box is already opened because we don't want to
 163      * duplicate identical dialog windows. */
 164     config_dialog = (GtkWidget *)gtk_object_get_data(
 165                     GTK_OBJECT(p_intf->p_sys->p_window), psz_module_name );
 166     if( config_dialog )
 167     {
 168         /* Yeah it was open */
 169         gtk_widget_grab_focus( config_dialog );
 170         return;
 171     }
 172
 173
 174     /* Look for the selected module */
 175     for( p_module = p_intf->p_vlc->module_bank.first ; p_module != NULL ;
 176          p_module = p_module->next )
 177     {
 178
 179         if( psz_module_name
 180              && !strcmp( psz_module_name, p_module->psz_object_name ) )
 181         {
 182             break;
 183         }
 184     }
 185     if( !p_module ) return;
 186
 187     /* We found it, now we can start building its configuration interface */
 188     /* Create the configuration dialog box */
 189
 190 #ifdef MODULE_NAME_IS_gnome
 191     config_dialog = gnome_dialog_new( p_module->psz_longname, NULL );
 192     config_dialog_vbox = GNOME_DIALOG(config_dialog)->vbox;
 193 #else
 194     config_dialog = gtk_dialog_new();
 195     gtk_window_set_title( GTK_WINDOW(config_dialog), p_module->psz_longname );
 196     config_dialog_vbox = GTK_DIALOG(config_dialog)->vbox;
 197 #endif
 198
 199     gtk_object_set_data( GTK_OBJECT(config_dialog), "p_intf", p_intf );
 200
 201     category_max_height = config_GetInt( p_intf, MODULE_STRING "-prefs-maxh" );
 202
 203     gtk_window_set_policy( GTK_WINDOW(config_dialog), TRUE, TRUE, FALSE );
 204     gtk_container_set_border_width( GTK_CONTAINER(config_dialog_vbox), 0 );
 205
 206     /* Create our config hash table and associate it with the dialog box */
 207     config_hash_table = g_hash_table_new( NULL, NULL );
 208     gtk_object_set_data( GTK_OBJECT(config_dialog),
 209                          "config_hash_table", config_hash_table );
 210
 211     /* Create notebook */
 212     config_notebook = gtk_notebook_new();
 213     gtk_notebook_set_scrollable( GTK_NOTEBOOK(config_notebook), TRUE );
 214     gtk_container_add( GTK_CONTAINER(config_dialog_vbox), config_notebook );
 215
 216     /* Enumerate config options and add corresponding config boxes */
 217     p_item = p_module->p_config;
 218     do
 219     {
 220         switch( p_item->i_type )
 221         {
 222
 223         case CONFIG_HINT_CATEGORY:
 224         case CONFIG_HINT_END:
 225
 226             /*
 227              * Before we start building the interface for the new category, we
 228              * must close/finish the previous one we were generating.
 229              */
 230             if( category_table )
 231             {
 232                 GtkWidget *_scrolled_window;
 233                 GtkWidget *_viewport;
 234                 GtkWidget *_vbox;
 235                 GtkRequisition _requisition;
 236
 237                 /* create a vbox to deal with EXPAND/FILL issues in the
 238                  * notebook page, and pack it with the previously generated
 239                  * category_table */
 240                 _vbox = gtk_vbox_new( FALSE, 0 );
 241                 gtk_container_set_border_width( GTK_CONTAINER(_vbox), 4 );
 242                 gtk_box_pack_start( GTK_BOX(_vbox), category_table,
 243                                     FALSE, FALSE, 0 );
 244
 245                 /* create a new scrolled window that will contain all of the
 246                  * above. */
 247                 _scrolled_window = gtk_scrolled_window_new( NULL, NULL );
 248                 gtk_scrolled_window_set_policy(
 249                     GTK_SCROLLED_WINDOW(_scrolled_window), GTK_POLICY_NEVER,
 250                     GTK_POLICY_AUTOMATIC );
 251                 /* add scrolled window as a notebook page */
 252                 gtk_notebook_append_page( GTK_NOTEBOOK(config_notebook),
 253                                           _scrolled_window, category_label );
 254                 /* pack the vbox into the scrolled window */
 255                 _viewport = gtk_viewport_new( NULL, NULL );
 256                 gtk_viewport_set_shadow_type( GTK_VIEWPORT(_viewport),
 257                                               GTK_SHADOW_NONE );
 258                 gtk_container_add( GTK_CONTAINER(_viewport), _vbox );
 259                 gtk_container_add( GTK_CONTAINER(_scrolled_window),
 260                                    _viewport );
 261
 262                 /* set the size of the scrolled window to the size of the
 263                  * child widget */
 264                 gtk_widget_show_all( _vbox );
 265                 gtk_widget_size_request( _vbox, &_requisition );
 266                 if( _requisition.height > category_max_height )
 267                     gtk_widget_set_usize( _scrolled_window, -1,
 268                                           category_max_height );
 269                 else
 270                     gtk_widget_set_usize( _scrolled_window, -1,
 271                                           _requisition.height );
 272
 273             }
 274
 275             /*
 276              * Now we can start taking care of the new category
 277              */
 278
 279             if( p_item->i_type == CONFIG_HINT_CATEGORY )
 280             {
 281                 /* create a new table for right-left alignment of children */
 282                 category_table = gtk_table_new( 0, 0, FALSE );
 283                 gtk_table_set_col_spacings( GTK_TABLE(category_table), 4 );
 284                 rows = 0;
 285
 286                 /* create a new category label */
 287                 category_label = gtk_label_new( p_item->psz_text );
 288             }
 289
 290             break;
 291
 292         case CONFIG_ITEM_MODULE:
 293
 294             item_frame = gtk_frame_new( p_item->psz_text );
 295
 296             gtk_table_resize( GTK_TABLE(category_table), ++rows, 2 );
 297             gtk_table_attach_defaults( GTK_TABLE(category_table), item_frame,
 298                                        0, 2, rows - 1, rows );
 299
 300             item_vbox = gtk_vbox_new( FALSE, 4 );
 301             gtk_container_add( GTK_CONTAINER(item_frame), item_vbox );
 302
 303             /* create a new clist widget */
 304             {
 305                 gchar * titles[] = { _("Name"), _("Description") };
 306
 307                 module_clist = gtk_clist_new_with_titles( 2, titles );
 308             }
 309             gtk_object_set_data( GTK_OBJECT(module_clist), "p_intf", p_intf );
 310             gtk_clist_column_titles_passive( GTK_CLIST(module_clist) );
 311             gtk_clist_set_selection_mode( GTK_CLIST(module_clist),
 312                                           GTK_SELECTION_SINGLE);
 313             gtk_container_add( GTK_CONTAINER(item_vbox), module_clist );
 314
 315             /* build a list of available modules */
 316             {
 317                 gchar * entry[2];
 318
 319                 for( p_module_bis = p_intf->p_vlc->module_bank.first ;
 320                      p_module_bis != NULL ;
 321                      p_module_bis = p_module_bis->next )
 322                 {
 323                     if( p_module_bis->i_capabilities & (1 << p_item->i_value) )
 324                     {
 325                         entry[0] = p_module_bis->psz_object_name;
 326                         entry[1] = p_module_bis->psz_longname;
 327                         gtk_clist_append( GTK_CLIST(module_clist), entry );
 328                     }
 329                 }
 330             }
 331
 332             gtk_clist_set_column_auto_resize( GTK_CLIST(module_clist),
 333                                               0, TRUE );
 334             gtk_clist_set_column_auto_resize( GTK_CLIST(module_clist),
 335                                               1, TRUE );
 336
 337             /* connect signals to the modules list */
 338             gtk_signal_connect( GTK_OBJECT(module_clist), "select_row",
 339                                 GTK_SIGNAL_FUNC(GtkModuleHighlighted),
 340                                 NULL );
 341
 342             /* hbox holding the "select" and "configure" buttons */
 343             item_hbox = gtk_hbox_new( FALSE, 4 );
 344             gtk_container_add( GTK_CONTAINER(item_vbox), item_hbox);
 345
 346             /* add configure button */
 347             module_config_button =
 348                 gtk_button_new_with_label( _("Configure") );
 349             gtk_widget_set_sensitive( module_config_button, FALSE );
 350             gtk_container_add( GTK_CONTAINER(item_hbox),
 351                                module_config_button );
 352             gtk_object_set_data( GTK_OBJECT(module_config_button),
 353                                  "p_intf", p_intf );
 354             gtk_object_set_data( GTK_OBJECT(module_clist),
 355                                  "config_button", module_config_button );
 356
 357             /* add select button */
 358             module_select_button =
 359                 gtk_button_new_with_label( _("Select") );
 360             gtk_container_add( GTK_CONTAINER(item_hbox),
 361                                module_select_button );
 362             /* add a tooltip on mouseover */
 363             gtk_tooltips_set_tip( p_intf->p_sys->p_tooltips,
 364                                   module_select_button,
 365                                   p_item->psz_longtext, "" );
 366
 367             /* hbox holding the "selected" label and text input */
 368             item_hbox = gtk_hbox_new( FALSE, 4 );
 369             gtk_container_add( GTK_CONTAINER(item_vbox), item_hbox);
 370             /* add new label */
 371             item_label = gtk_label_new( _("Selected:") );
 372             gtk_container_add( GTK_CONTAINER(item_hbox), item_label );
 373
 374             /* add input box with default value */
 375             string_entry = gtk_entry_new();
 376             gtk_object_set_data( GTK_OBJECT(module_clist),
 377                                  "module_entry", string_entry );
 378             gtk_container_add( GTK_CONTAINER(item_hbox), string_entry );
 379             vlc_mutex_lock( p_item->p_lock );
 380             gtk_entry_set_text( GTK_ENTRY(string_entry),
 381                                 p_item->psz_value ? p_item->psz_value : "" );
 382             vlc_mutex_unlock( p_item->p_lock );
 383             /* add a tooltip on mouseover */
 384             gtk_tooltips_set_tip( p_intf->p_sys->p_tooltips,
 385                                   string_entry, p_item->psz_longtext, "" );
 386
 387             /* connect signals to the buttons */
 388             gtk_signal_connect( GTK_OBJECT(module_config_button), "clicked",
 389                                 GTK_SIGNAL_FUNC(GtkModuleConfigure),
 390                                 (gpointer)module_clist );
 391             gtk_signal_connect( GTK_OBJECT(module_select_button), "clicked",
 392                                 GTK_SIGNAL_FUNC(GtkModuleSelected),
 393                                 (gpointer)module_clist );
 394
 395             /* connect signal to track changes in the text box */
 396             gtk_object_set_data( GTK_OBJECT(string_entry), "config_option",
 397                                  p_item->psz_name );
 398             gtk_signal_connect( GTK_OBJECT(string_entry), "changed",
 399                                 GTK_SIGNAL_FUNC(GtkStringChanged),
 400                                 (gpointer)config_dialog );
 401             break;
 402
 403         case CONFIG_ITEM_STRING:
 404         case CONFIG_ITEM_FILE:
 405
 406             if( !p_item->ppsz_list )
 407             {
 408                 /* add input box with default value */
 409                 item_combo = string_entry = gtk_entry_new();
 410             }
 411             else
 412             {
 413                 /* add combo box with default value */
 414                 GList *items = NULL;
 415                 int i;
 416
 417                 for( i=0; p_item->ppsz_list[i]; i++ )
 418                     items = g_list_append( items, p_item->ppsz_list[i] );
 419
 420                 item_combo = gtk_combo_new();
 421                 string_entry = GTK_COMBO(item_combo)->entry;
 422                 gtk_combo_set_popdown_strings( GTK_COMBO(item_combo),
 423                                                items );
 424
 425             }
 426
 427             vlc_mutex_lock( p_item->p_lock );
 428             gtk_entry_set_text( GTK_ENTRY(string_entry),
 429                                 p_item->psz_value ? p_item->psz_value : "" );
 430             vlc_mutex_unlock( p_item->p_lock );
 431
 432             /* connect signal to track changes in the text box */
 433             gtk_object_set_data( GTK_OBJECT(string_entry), "config_option",
 434                                  p_item->psz_name );
 435             gtk_signal_connect( GTK_OBJECT(string_entry), "changed",
 436                                 GTK_SIGNAL_FUNC(GtkStringChanged),
 437                                 (gpointer)config_dialog );
 438
 439             LABEL_AND_WIDGET( p_item->psz_text,
 440                               item_combo, p_item->psz_longtext );
 441             break;
 442
 443         case CONFIG_ITEM_INTEGER:
 444
 445             /* add input box with default value */
 446             item_adj = gtk_adjustment_new( p_item->i_value,
 447                                            -1, 99999, 1, 10, 10 );
 448             integer_spinbutton = gtk_spin_button_new( GTK_ADJUSTMENT(item_adj),
 449                                                       1, 0 );
 450
 451             /* connect signal to track changes in the spinbutton value */
 452             gtk_object_set_data( GTK_OBJECT(integer_spinbutton),
 453                                  "config_option", p_item->psz_name );
 454             gtk_signal_connect( GTK_OBJECT(integer_spinbutton), "changed",
 455                                 GTK_SIGNAL_FUNC(GtkIntChanged),
 456                                 (gpointer)config_dialog );
 457
 458             LABEL_AND_WIDGET( p_item->psz_text,
 459                               integer_spinbutton, p_item->psz_longtext );
 460             break;
 461
 462         case CONFIG_ITEM_FLOAT:
 463
 464             /* add input box with default value */
 465             item_adj = gtk_adjustment_new( p_item->f_value,
 466                                            0, 99999, 0.01, 10, 10 );
 467             float_spinbutton = gtk_spin_button_new( GTK_ADJUSTMENT(item_adj),
 468                                                     0.01, 2 );
 469
 470             /* connect signal to track changes in the spinbutton value */
 471             gtk_object_set_data( GTK_OBJECT(float_spinbutton),
 472                                  "config_option", p_item->psz_name );
 473             gtk_signal_connect( GTK_OBJECT(float_spinbutton), "changed",
 474                                 GTK_SIGNAL_FUNC(GtkFloatChanged),
 475                                 (gpointer)config_dialog );
 476
 477             LABEL_AND_WIDGET( p_item->psz_text,
 478                               float_spinbutton, p_item->psz_longtext );
 479             break;
 480
 481         case CONFIG_ITEM_BOOL:
 482
 483             /* add check button */
 484             bool_checkbutton = gtk_check_button_new();
 485             gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON(bool_checkbutton),
 486                                           p_item->i_value );
 487
 488             /* connect signal to track changes in the button state */
 489             gtk_object_set_data( GTK_OBJECT(bool_checkbutton), "config_option",
 490                                  p_item->psz_name );
 491             gtk_signal_connect( GTK_OBJECT(bool_checkbutton), "toggled",
 492                                 GTK_SIGNAL_FUNC(GtkBoolChanged),
 493                                 (gpointer)config_dialog );
 494
 495             LABEL_AND_WIDGET( p_item->psz_text,
 496                               bool_checkbutton, p_item->psz_longtext );
 497             break;
 498
 499         }
 500
 501     }
 502     while( p_item->i_type != CONFIG_HINT_END && p_item++ );
 503
 504 #ifndef MODULE_NAME_IS_gnome
 505     /* Now let's add the action buttons at the bottom of the page */
 506     dialog_action_area = GTK_DIALOG(config_dialog)->action_area;
 507     gtk_container_set_border_width( GTK_CONTAINER(dialog_action_area), 4 );
 508
 509     /* add a new table for the config option */
 510     item_hbox = gtk_hbox_new( FALSE, 0 );
 511     gtk_box_pack_end( GTK_BOX(dialog_action_area), item_hbox,
 512                       TRUE, FALSE, 0 );
 513     item_hbox = gtk_hbox_new( FALSE, 0 );
 514     gtk_box_pack_end( GTK_BOX(dialog_action_area), item_hbox,
 515                       TRUE, FALSE, 0 );
 516 #endif
 517
 518     /* Create the OK button */
 519 #ifdef MODULE_NAME_IS_gnome
 520     gnome_dialog_append_button( GNOME_DIALOG(config_dialog),
 521                                 GNOME_STOCK_BUTTON_OK );
 522     ok_button =
 523         GTK_WIDGET(g_list_last(GNOME_DIALOG(config_dialog)->buttons)->data);
 524
 525     gnome_dialog_append_button( GNOME_DIALOG(config_dialog),
 526                                 GNOME_STOCK_BUTTON_APPLY );
 527     apply_button =
 528         GTK_WIDGET(g_list_last(GNOME_DIALOG(config_dialog)->buttons)->data);
 529
 530     gnome_dialog_append_button_with_pixmap(
 531         GNOME_DIALOG(config_dialog), _("Save"), GNOME_STOCK_PIXMAP_SAVE );
 532     save_button =
 533         GTK_WIDGET(g_list_last(GNOME_DIALOG(config_dialog)->buttons)->data);
 534
 535     gnome_dialog_append_button( GNOME_DIALOG(config_dialog),
 536                                 GNOME_STOCK_BUTTON_CANCEL );
 537     cancel_button =
 538         GTK_WIDGET(g_list_last(GNOME_DIALOG(config_dialog)->buttons)->data);
 539 #else
 540     ok_button = gtk_button_new_with_label( _("OK") );
 541     gtk_box_pack_start( GTK_BOX(dialog_action_area), ok_button,
 542                         TRUE, TRUE, 0 );
 543
 544     apply_button = gtk_button_new_with_label( _("Apply") );
 545     gtk_box_pack_start( GTK_BOX(dialog_action_area), apply_button,
 546                         TRUE, TRUE, 0 );
 547
 548     save_button = gtk_button_new_with_label( _("Save") );
 549     gtk_box_pack_start( GTK_BOX(dialog_action_area), save_button,
 550                         TRUE, TRUE, 0 );
 551
 552     cancel_button = gtk_button_new_with_label( _("Cancel") );
 553     gtk_box_pack_start( GTK_BOX(dialog_action_area), cancel_button,
 554                         TRUE, TRUE, 0 );
 555 #endif
 556
 557     gtk_signal_connect( GTK_OBJECT(ok_button), "clicked",
 558                         GTK_SIGNAL_FUNC(GtkConfigOk),
 559                         config_dialog );
 560     gtk_widget_set_sensitive( apply_button, FALSE );
 561     gtk_object_set_data( GTK_OBJECT(config_dialog), "apply_button",
 562                          apply_button );
 563     gtk_signal_connect( GTK_OBJECT(apply_button), "clicked",
 564                         GTK_SIGNAL_FUNC(GtkConfigApply),
 565                         config_dialog );
 566     gtk_signal_connect( GTK_OBJECT(save_button), "clicked",
 567                         GTK_SIGNAL_FUNC(GtkConfigSave),
 568                         config_dialog );
 569     gtk_signal_connect( GTK_OBJECT(cancel_button), "clicked",
 570                         GTK_SIGNAL_FUNC(GtkConfigCancel),
 571                         config_dialog );
 572
 573
 574
 575     /* Ok, job done successfully. Let's keep a reference to the dialog box */
 576     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_window),
 577                          psz_module_name, config_dialog );
 578     gtk_object_set_data( GTK_OBJECT(config_dialog), "psz_module_name",
 579                          psz_module_name );
 580
 581     /* we want this ref to be destroyed if the object is destroyed */
 582     gtk_signal_connect( GTK_OBJECT(config_dialog), "destroy",
 583                        GTK_SIGNAL_FUNC(GtkConfigDialogDestroyed),
 584                        (gpointer)p_intf );
 585
 586     gtk_widget_show_all( config_dialog );
 587 }
 588
 589 #undef LABEL_AND_WIDGET
 590 #undef TOOLTIP
 591
 592 /****************************************************************************
 593  * GtkConfigApply: store the changes to the config inside the modules
 594  * configuration structure and clear the hash table.
 595  ****************************************************************************/
 596 void GtkConfigApply( GtkButton * button, gpointer user_data )
 597 {
 598     intf_thread_t *p_intf;
 599     GHashTable *hash_table;
 600     GtkWidget *apply_button;
 601
 602     hash_table = (GHashTable *)gtk_object_get_data( GTK_OBJECT(user_data),
 603                                                     "config_hash_table" );
 604     p_intf = (intf_thread_t *)gtk_object_get_data( GTK_OBJECT(user_data),
 605                                                    "p_intf" );
 606     g_hash_table_foreach_remove( hash_table, GtkSaveHashValue, (void*)p_intf );
 607
 608     /* change the highlight status of the Apply button */
 609     apply_button = (GtkWidget *)gtk_object_get_data( GTK_OBJECT(user_data),
 610                                                     "apply_button" );
 611     gtk_widget_set_sensitive( apply_button, FALSE );
 612 }
 613
 614 void GtkConfigOk( GtkButton * button, gpointer user_data )
 615 {
 616     GtkConfigApply( button, user_data );
 617     gtk_widget_destroy( gtk_widget_get_toplevel( GTK_WIDGET (button) ) );
 618 }
 619
 620
 621 void GtkConfigCancel( GtkButton * button, gpointer user_data )
 622 {
 623     gtk_widget_destroy( gtk_widget_get_toplevel( GTK_WIDGET (button) ) );
 624 }
 625
 626 void GtkConfigSave( GtkButton * button, gpointer user_data )
 627 {
 628     intf_thread_t *p_intf;
 629
 630     p_intf = (intf_thread_t *)gtk_object_get_data( GTK_OBJECT(user_data),
 631                                                    "p_intf" );
 632     GtkConfigApply( button, user_data );
 633     config_SaveConfigFile( p_intf, NULL );
 634 }
 635
 636 /****************************************************************************
 637  * GtkModuleHighlighted: display module description when an entry is selected
 638  *   in the clist, and activate the configure button if necessary.
 639  ****************************************************************************/
 640 void GtkModuleHighlighted( GtkCList *module_clist, int row, int column,
 641                            GdkEventButton *event, gpointer user_data )
 642 {
 643     intf_thread_t *p_intf;
 644     GtkWidget *config_button;
 645     module_t *p_module;
 646     char *psz_name;
 647
 648     p_intf = (intf_thread_t *)gtk_object_get_data( GTK_OBJECT(module_clist),
 649                                                    "p_intf" );
 650
 651     if( gtk_clist_get_text( GTK_CLIST(module_clist), row, 0, &psz_name ) )
 652     {
 653         /* look for module 'psz_name' */
 654         for( p_module = p_intf->p_vlc->module_bank.first ;
 655              p_module != NULL ;
 656              p_module = p_module->next )
 657         {
 658           if( !strcmp( p_module->psz_object_name, psz_name ) )
 659           {
 660               gtk_object_set_data( GTK_OBJECT(module_clist),
 661                                    "module_highlighted", p_module );
 662               config_button = gtk_object_get_data( GTK_OBJECT(module_clist),
 663                                                    "config_button" );
 664               if( p_module->i_config_items )
 665                   gtk_widget_set_sensitive( config_button, TRUE );
 666               else
 667                   gtk_widget_set_sensitive( config_button, FALSE );
 668
 669               break;
 670           }
 671         }
 672
 673     }
 674 }
 675
 676 /****************************************************************************
 677  * GtkModuleConfigure: display module configuration dialog box.
 678  ****************************************************************************/
 679 void GtkModuleConfigure( GtkButton *button, gpointer user_data )
 680 {
 681     module_t *p_module;
 682     intf_thread_t *p_intf;
 683
 684     p_module = (module_t *)gtk_object_get_data( GTK_OBJECT(user_data),
 685                                                 "module_highlighted" );
 686
 687     if( !p_module ) return;
 688     p_intf = (intf_thread_t *)gtk_object_get_data( GTK_OBJECT(button),
 689                                                    "p_intf" );
 690     GtkCreateConfigDialog( p_module->psz_object_name, (gpointer)p_intf );
 691
 692 }
 693
 694 /****************************************************************************
 695  * GtkModuleSelected: select module.
 696  ****************************************************************************/
 697 void GtkModuleSelected( GtkButton *button, gpointer user_data )
 698 {
 699     module_t *p_module;
 700     GtkWidget *widget;
 701
 702     p_module = (module_t *)gtk_object_get_data( GTK_OBJECT(user_data),
 703                                                 "module_highlighted" );
 704     widget = (GtkWidget *)gtk_object_get_data( GTK_OBJECT(user_data),
 705                                                "module_entry" );
 706     if( !p_module ) return;
 707
 708     gtk_entry_set_text( GTK_ENTRY(widget), p_module->psz_object_name );
 709
 710 }
 711
 712 /****************************************************************************
 713  * GtkStringChanged: signal called when the user changes a string value.
 714  ****************************************************************************/
 715 static void GtkStringChanged( GtkEditable *editable, gpointer user_data )
 716 {
 717     intf_thread_t *p_intf;
 718     module_config_t *p_config;
 719     GHashTable *hash_table;
 720     GtkWidget *apply_button;
 721
 722     p_intf = (intf_thread_t *)gtk_object_get_data( GTK_OBJECT(editable),
 723                                                    "p_intf" );
 724     hash_table = (GHashTable *)gtk_object_get_data( GTK_OBJECT(user_data),
 725                                                     "config_hash_table" );
 726     /* free old p_config */
 727     p_config = (module_config_t *)g_hash_table_lookup( hash_table,
 728                                                        (gpointer)editable );
 729     if( p_config ) GtkFreeHashValue( NULL, (gpointer)p_config, (void *)p_intf );
 730
 731     p_config = malloc( sizeof(module_config_t) );
 732     p_config->i_type = CONFIG_ITEM_STRING;
 733     p_config->psz_value = gtk_editable_get_chars( editable, 0, -1 );
 734     p_config->psz_name = (char *)gtk_object_get_data( GTK_OBJECT(editable),
 735                                                       "config_option" );
 736
 737     g_hash_table_insert( hash_table, (gpointer)editable,
 738                          (gpointer)p_config );
 739
 740     /* change the highlight status of the Apply button */
 741     apply_button = (GtkWidget *)gtk_object_get_data( GTK_OBJECT(user_data),
 742                                                     "apply_button" );
 743     gtk_widget_set_sensitive( apply_button, TRUE );
 744 }
 745
 746 /****************************************************************************
 747  * GtkIntChanged: signal called when the user changes an integer value.
 748  ****************************************************************************/
 749 static void GtkIntChanged( GtkEditable *editable, gpointer user_data )
 750 {
 751     intf_thread_t *p_intf;
 752     module_config_t *p_config;
 753     GHashTable *hash_table;
 754     GtkWidget *apply_button;
 755
 756     p_intf = (intf_thread_t *)gtk_object_get_data( GTK_OBJECT(editable),
 757                                                    "p_intf" );
 758     gtk_spin_button_update( GTK_SPIN_BUTTON(editable) );
 759
 760     hash_table = (GHashTable *)gtk_object_get_data( GTK_OBJECT(user_data),
 761                                                     "config_hash_table" );
 762
 763     /* free old p_config */
 764     p_config = (module_config_t *)g_hash_table_lookup( hash_table,
 765                                                        (gpointer)editable );
 766     if( p_config ) GtkFreeHashValue( NULL, (gpointer)p_config, (void *)p_intf );
 767
 768     p_config = malloc( sizeof(module_config_t) );
 769     p_config->i_type = CONFIG_ITEM_INTEGER;
 770     p_config->i_value = gtk_spin_button_get_value_as_int(
 771                             GTK_SPIN_BUTTON(editable) );
 772     p_config->psz_name = (char *)gtk_object_get_data( GTK_OBJECT(editable),
 773                                                       "config_option" );
 774
 775     g_hash_table_insert( hash_table, (gpointer)editable,
 776                          (gpointer)p_config );
 777
 778     /* change the highlight status of the Apply button */
 779     apply_button = (GtkWidget *)gtk_object_get_data( GTK_OBJECT(user_data),
 780                                                     "apply_button" );
 781     gtk_widget_set_sensitive( apply_button, TRUE );
 782 }
 783
 784 /****************************************************************************
 785  * GtkFloatChanged: signal called when the user changes a float value.
 786  ****************************************************************************/
 787 static void GtkFloatChanged( GtkEditable *editable, gpointer user_data )
 788 {
 789     intf_thread_t *p_intf;
 790     module_config_t *p_config;
 791     GHashTable *hash_table;
 792     GtkWidget *apply_button;
 793
 794     p_intf = (intf_thread_t *)gtk_object_get_data( GTK_OBJECT(editable),
 795                                                    "p_intf" );
 796     gtk_spin_button_update( GTK_SPIN_BUTTON(editable) );
 797
 798     hash_table = (GHashTable *)gtk_object_get_data( GTK_OBJECT(user_data),
 799                                                     "config_hash_table" );
 800
 801     /* free old p_config */
 802     p_config = (module_config_t *)g_hash_table_lookup( hash_table,
 803                                                        (gpointer)editable );
 804     if( p_config ) GtkFreeHashValue( NULL, (gpointer)p_config, (void *)p_intf );
 805
 806     p_config = malloc( sizeof(module_config_t) );
 807     p_config->i_type = CONFIG_ITEM_FLOAT;
 808     p_config->f_value = gtk_spin_button_get_value_as_float(
 809                            GTK_SPIN_BUTTON(editable) );
 810     p_config->psz_name = (char *)gtk_object_get_data( GTK_OBJECT(editable),
 811                                                       "config_option" );
 812
 813     g_hash_table_insert( hash_table, (gpointer)editable,
 814                          (gpointer)p_config );
 815
 816     /* change the highlight status of the Apply button */
 817     apply_button = (GtkWidget *)gtk_object_get_data( GTK_OBJECT(user_data),
 818                                                     "apply_button" );
 819     gtk_widget_set_sensitive( apply_button, TRUE );
 820 }
 821
 822 /****************************************************************************
 823  * GtkBoolChanged: signal called when the user changes a bool value.
 824  ****************************************************************************/
 825 static void GtkBoolChanged( GtkToggleButton *button, gpointer user_data )
 826 {
 827     intf_thread_t *p_intf;
 828     module_config_t *p_config;
 829     GHashTable *hash_table;
 830     GtkWidget *apply_button;
 831
 832     p_intf = (intf_thread_t *)gtk_object_get_data( GTK_OBJECT(button),
 833                                                    "p_intf" );
 834     hash_table = (GHashTable *)gtk_object_get_data( GTK_OBJECT(user_data),
 835                                                     "config_hash_table" );
 836
 837     /* free old p_config */
 838     p_config = (module_config_t *)g_hash_table_lookup( hash_table,
 839                                                        (gpointer)button );
 840     if( p_config ) GtkFreeHashValue( NULL, (gpointer)p_config, (void *)p_intf );
 841
 842     p_config = malloc( sizeof(module_config_t) );
 843     p_config->i_type = CONFIG_ITEM_BOOL;
 844     p_config->i_value = gtk_toggle_button_get_active( button );
 845     p_config->psz_name = (char *)gtk_object_get_data( GTK_OBJECT(button),
 846                                                       "config_option" );
 847
 848     g_hash_table_insert( hash_table, (gpointer)button,
 849                          (gpointer)p_config );
 850
 851     /* change the highlight status of the Apply button */
 852     apply_button = (GtkWidget *)gtk_object_get_data( GTK_OBJECT(user_data),
 853                                                      "apply_button" );
 854     gtk_widget_set_sensitive( apply_button, TRUE );
 855 }
 856
 857 /****************************************************************************
 858  * GtkFreeHashTable: signal called when the config hash table is destroyed.
 859  ****************************************************************************/
 860 static void GtkFreeHashTable( GtkObject *object )
 861 {
 862     GHashTable *hash_table = (GHashTable *)gtk_object_get_data( object,
 863                                                          "config_hash_table" );
 864     intf_thread_t *p_intf = (intf_thread_t *)gtk_object_get_data( object,
 865                                                                   "p_intf" );
 866
 867     g_hash_table_foreach( hash_table, GtkFreeHashValue, (void *)p_intf );
 868     g_hash_table_destroy( hash_table );
 869 }
 870
 871 /****************************************************************************
 872  * GtkFreeHashValue: signal called when an element of the config hash table
 873  * is destroyed.
 874  ****************************************************************************/
 875 static void GtkFreeHashValue( gpointer key, gpointer value, gpointer user_data)
 876 {
 877     module_config_t * p_config = (module_config_t *)value;
 878
 879     if( p_config->i_type == CONFIG_ITEM_STRING )
 880         if( p_config->psz_value ) g_free( p_config->psz_value );
 881     free( p_config );
 882 }
 883
 884 /****************************************************************************
 885  * GtkSaveHashValue: callback used when enumerating the hash table in
 886  * GtkConfigApply().
 887  ****************************************************************************/
 888 static gboolean GtkSaveHashValue( gpointer key, gpointer value,
 889                                   gpointer user_data )
 890 {
 891     intf_thread_t *   p_intf   = (intf_thread_t *)user_data;
 892     module_config_t * p_config = (module_config_t *)value;
 893
 894     switch( p_config->i_type )
 895     {
 896
 897     case CONFIG_ITEM_STRING:
 898     case CONFIG_ITEM_FILE:
 899     case CONFIG_ITEM_MODULE:
 900         config_PutPsz( p_intf, p_config->psz_name,
 901                        *p_config->psz_value ? p_config->psz_value : NULL );
 902         break;
 903     case CONFIG_ITEM_INTEGER:
 904     case CONFIG_ITEM_BOOL:
 905         config_PutInt( p_intf, p_config->psz_name, p_config->i_value );
 906         break;
 907     case CONFIG_ITEM_FLOAT:
 908         config_PutFloat( p_intf, p_config->psz_name, p_config->f_value );
 909         break;
 910     }
 911
 912     /* free the hash value we allocated */
 913     if( p_config->i_type == CONFIG_ITEM_STRING )
 914         g_free( p_config->psz_value );
 915     free( p_config );
 916
 917     /* return TRUE so glib will free the hash entry */
 918     return TRUE;
 919 }
 920
 921 /****************************************************************************
 922  * GtkConfigDialogDestroyed: callback triggered when the config dialog box is
 923  * destroyed.
 924  ****************************************************************************/
 925 static void GtkConfigDialogDestroyed( GtkObject *object, gpointer user_data )
 926 {
 927     intf_thread_t *p_intf = (intf_thread_t *)user_data;
 928     char *psz_module_name;
 929
 930     psz_module_name = gtk_object_get_data( object, "psz_module_name" );
 931
 932     /* remove the ref to the dialog box */
 933     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_window),
 934                          psz_module_name, NULL );
 935
 936     GtkFreeHashTable( object );
 937 }