src/ui/gui/psppire-dialog.c

   1 /* PSPPIRE - a graphical user interface for PSPP.
   2    Copyright (C) 2007  Free Software Foundation
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
  16
  17
  18 #include <config.h>
  19
  20 #include <gtk/gtk.h>
  21 #include <gtk/gtksignal.h>
  22 #include <gtk/gtkbuildable.h>
  23 #include "psppire-dialog.h"
  24 #include "psppire-buttonbox.h"
  25 #include "psppire-selector.h"
  26 #include "psppire-conf.h"
  27 #include <string.h>
  28
  29 static void psppire_dialog_class_init          (PsppireDialogClass *);
  30 static void psppire_dialog_init                (PsppireDialog      *);
  31
  32
  33 enum  {DIALOG_REFRESH,
  34        VALIDITY_CHANGED,
  35        n_SIGNALS};
  36
  37 static guint signals [n_SIGNALS];
  38
  39
  40 static void psppire_dialog_buildable_init (GtkBuildableIface *iface);
  41
  42
  43 GType
  44 psppire_dialog_get_type (void)
  45 {
  46   static GType dialog_type = 0;
  47
  48   if (!dialog_type)
  49     {
  50       static const GTypeInfo dialog_info =
  51       {
  52         sizeof (PsppireDialogClass),
  53         NULL, /* base_init */
  54         NULL, /* base_finalize */
  55         (GClassInitFunc) psppire_dialog_class_init,
  56         NULL, /* class_finalize */
  57         NULL, /* class_data */
  58         sizeof (PsppireDialog),
  59         0,
  60         (GInstanceInitFunc) psppire_dialog_init,
  61       };
  62
  63       static const GInterfaceInfo buildable_info =
  64       {
  65         (GInterfaceInitFunc) psppire_dialog_buildable_init,
  66         NULL,
  67         NULL
  68       };
  69
  70       dialog_type = g_type_register_static (GTK_TYPE_WINDOW,
  71                                             "PsppireDialog", &dialog_info, 0);
  72
  73       g_type_add_interface_static (dialog_type,
  74                                    GTK_TYPE_BUILDABLE,
  75                                    &buildable_info);
  76     }
  77
  78   return dialog_type;
  79 }
  80
  81
  82
  83 static GObjectClass     *parent_class = NULL;
  84
  85
  86 static void
  87 psppire_dialog_finalize (GObject *object)
  88 {
  89   PsppireDialog *dialog ;
  90
  91   g_return_if_fail (object != NULL);
  92   g_return_if_fail (PSPPIRE_IS_DIALOG (object));
  93
  94   dialog = PSPPIRE_DIALOG (object);
  95
  96   if (G_OBJECT_CLASS (parent_class)->finalize)
  97     G_OBJECT_CLASS (parent_class)->finalize (object);
  98 }
  99
 100
 101
 102 /* Properties */
 103 enum
 104 {
 105   PROP_0,
 106   PROP_ORIENTATION,
 107   PROP_SLIDING
 108 };
 109
 110
 111 static void
 112 psppire_dialog_get_property (GObject         *object,
 113                              guint            prop_id,
 114                              GValue          *value,
 115                              GParamSpec      *pspec)
 116 {
 117   PsppireDialog *dialog = PSPPIRE_DIALOG (object);
 118
 119   switch (prop_id)
 120     {
 121     case PROP_ORIENTATION:
 122       {
 123         if ( GTK_IS_VBOX (dialog->box) || GTK_VPANED (dialog->box))
 124           g_value_set_enum (value, PSPPIRE_VERTICAL);
 125         else if ( GTK_IS_HBOX (dialog->box) || GTK_HPANED (dialog->box))
 126           g_value_set_enum (value, PSPPIRE_HORIZONTAL);
 127         else if ( GTK_IS_TABLE (dialog->box))
 128           g_value_set_enum (value, PSPPIRE_TABULAR);
 129       }
 130       break;
 131     case PROP_SLIDING:
 132       g_value_set_boolean (value, dialog->slidable);
 133       break;
 134     default:
 135       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 136       break;
 137     };
 138 }
 139
 140
 141 static void
 142 dialog_set_container (PsppireDialog *dialog)
 143 {
 144   if ( dialog->box != NULL)
 145     {
 146       gtk_container_remove (GTK_CONTAINER (dialog), dialog->box);
 147     }
 148
 149   switch (dialog->orientation)
 150     {
 151     case PSPPIRE_HORIZONTAL:
 152       if ( dialog->slidable)
 153         dialog->box = gtk_hpaned_new();
 154       else
 155         dialog->box = gtk_hbox_new (FALSE, 5);
 156       break;
 157     case PSPPIRE_VERTICAL:
 158       if ( dialog->slidable)
 159         dialog->box = gtk_vpaned_new();
 160       else
 161         dialog->box = gtk_vbox_new (FALSE, 5);
 162       break;
 163     case PSPPIRE_TABULAR:
 164       dialog->box = gtk_table_new (2, 3, FALSE);
 165       g_object_set (dialog->box,
 166                     "row-spacing", 5,
 167                     "column-spacing", 5,
 168                     NULL);
 169       break;
 170     }
 171
 172   gtk_widget_show_all (dialog->box);
 173   gtk_container_add (GTK_CONTAINER (dialog), dialog->box);
 174 }
 175
 176
 177 static void
 178 psppire_dialog_set_property (GObject         *object,
 179                              guint            prop_id,
 180                              const GValue    *value,
 181                              GParamSpec      *pspec)
 182
 183 {
 184   PsppireDialog *dialog = PSPPIRE_DIALOG (object);
 185
 186   switch (prop_id)
 187     {
 188     case PROP_SLIDING:
 189       dialog->slidable = g_value_get_boolean (value);
 190       break;
 191     case PROP_ORIENTATION:
 192       dialog->orientation = g_value_get_enum (value);
 193       break;
 194     default:
 195       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 196       break;
 197     };
 198
 199   dialog_set_container (dialog);
 200 }
 201
 202
 203 static GParamSpec *orientation_spec ;
 204
 205 static void
 206 psppire_dialog_class_init (PsppireDialogClass *class)
 207 {
 208   GObjectClass *object_class = (GObjectClass *) class;
 209
 210   GParamSpec *sliding_spec ;
 211
 212   orientation_spec =
 213     g_param_spec_enum ("orientation",
 214                        "Orientation",
 215                        "Which way widgets are packed",
 216                        PSPPIRE_TYPE_ORIENTATION,
 217                        PSPPIRE_HORIZONTAL /* default value */,
 218                        G_PARAM_CONSTRUCT_ONLY |G_PARAM_READWRITE);
 219
 220   sliding_spec =
 221     g_param_spec_boolean ("slidable",
 222                           "Slidable",
 223                           "Can the container be sized by the user",
 224                           FALSE,
 225                           G_PARAM_CONSTRUCT_ONLY |G_PARAM_READWRITE);
 226
 227
 228
 229   object_class->set_property = psppire_dialog_set_property;
 230   object_class->get_property = psppire_dialog_get_property;
 231
 232   g_object_class_install_property (object_class,
 233                                    PROP_ORIENTATION,
 234                                    orientation_spec);
 235
 236
 237   g_object_class_install_property (object_class,
 238                                    PROP_SLIDING,
 239                                    sliding_spec);
 240
 241
 242
 243   signals [DIALOG_REFRESH] =
 244     g_signal_new ("refresh",
 245                   G_TYPE_FROM_CLASS (class),
 246                   G_SIGNAL_RUN_FIRST,
 247                   0,
 248                   NULL, NULL,
 249                   g_cclosure_marshal_VOID__VOID,
 250                   G_TYPE_NONE,
 251                   0);
 252
 253
 254   signals [VALIDITY_CHANGED] =
 255     g_signal_new ("validity-changed",
 256                   G_TYPE_FROM_CLASS (class),
 257                   G_SIGNAL_RUN_FIRST,
 258                   0,
 259                   NULL, NULL,
 260                   g_cclosure_marshal_VOID__BOOLEAN,
 261                   G_TYPE_NONE,
 262                   1,
 263                   G_TYPE_BOOLEAN);
 264
 265
 266   object_class->finalize = psppire_dialog_finalize;
 267 }
 268
 269
 270
 271
 272 static void
 273 close_dialog (GtkWidget *w, gpointer data)
 274 {
 275   PsppireDialog *dialog = data;
 276
 277   psppire_dialog_close (dialog);
 278 }
 279
 280 void
 281 psppire_dialog_close (PsppireDialog *dialog)
 282 {
 283   g_main_loop_quit (dialog->loop);
 284   gtk_widget_hide (GTK_WIDGET (dialog));
 285 }
 286
 287
 288 static void
 289 delete_event_callback (GtkWidget *w, GdkEvent *e, gpointer data)
 290 {
 291   close_dialog (w, data);
 292 }
 293
 294
 295 static gboolean
 296 configure_event_callback (GtkDialog *dialog,
 297                           GdkEvent *event, gpointer data)
 298 {
 299   gchar *base = NULL;
 300
 301   PsppireConf *conf = psppire_conf_new ();
 302
 303   if ( ! GTK_WIDGET_MAPPED (dialog))
 304     return FALSE;
 305
 306   g_object_get (dialog, "name", &base, NULL);
 307
 308   psppire_conf_save_window_geometry (conf, base, event);
 309
 310   return FALSE;
 311 }
 312
 313
 314 static void
 315 on_realize (GtkWindow *dialog, gpointer data)
 316 {
 317   PsppireConf *conf = psppire_conf_new ();
 318
 319   const gchar *base = NULL;
 320
 321   g_object_get (dialog, "name", &base, NULL);
 322
 323   psppire_conf_set_window_geometry (conf, base, dialog);
 324 }
 325
 326
 327
 328 static void
 329 psppire_dialog_init (PsppireDialog *dialog)
 330 {
 331   GValue value = {0};
 332   dialog->box = NULL;
 333   dialog->contents_are_valid = NULL;
 334   dialog->validity_data = NULL;
 335   dialog->slidable = FALSE;
 336
 337   g_value_init (&value, orientation_spec->value_type);
 338   g_param_value_set_default (orientation_spec, &value);
 339
 340   gtk_window_set_type_hint (GTK_WINDOW (dialog),
 341         GDK_WINDOW_TYPE_HINT_DIALOG);
 342
 343   g_value_unset (&value);
 344
 345   g_signal_connect (dialog, "delete-event",
 346                     G_CALLBACK (delete_event_callback),
 347                     dialog);
 348
 349   g_signal_connect (dialog, "configure-event",
 350                     G_CALLBACK (configure_event_callback),
 351                     dialog);
 352
 353   g_signal_connect (dialog, "realize",
 354                     G_CALLBACK (on_realize),
 355                     dialog);
 356
 357
 358   gtk_window_set_type_hint (GTK_WINDOW (dialog),
 359         GDK_WINDOW_TYPE_HINT_DIALOG);
 360
 361   g_object_set (dialog, "icon-name", "psppicon", NULL);
 362 }
 363
 364
 365 GtkWidget*
 366 psppire_dialog_new (void)
 367 {
 368   PsppireDialog *dialog ;
 369
 370   dialog = g_object_new (psppire_dialog_get_type (),
 371                          NULL);
 372
 373   return GTK_WIDGET (dialog) ;
 374 }
 375
 376
 377 void
 378 psppire_dialog_notify_change (PsppireDialog *dialog)
 379 {
 380   if ( dialog->contents_are_valid )
 381     {
 382       gboolean valid = dialog->contents_are_valid (dialog->validity_data);
 383
 384       g_signal_emit (dialog, signals [VALIDITY_CHANGED], 0, valid);
 385     }
 386 }
 387
 388
 389 /* Descend the widget tree, connecting appropriate signals to the
 390    psppire_dialog_notify_change callback */
 391 static void
 392 connect_notify_signal (GtkWidget *w, gpointer data)
 393 {
 394   PsppireDialog *dialog = data;
 395
 396   if ( PSPPIRE_IS_BUTTONBOX (w))
 397     return;
 398
 399
 400
 401   if ( GTK_IS_CONTAINER (w))
 402     {
 403       gtk_container_foreach (GTK_CONTAINER (w),
 404                              connect_notify_signal,
 405                              dialog);
 406     }
 407
 408
 409   /* It's unfortunate that GTK+ doesn't have a generic
 410      "user-modified-state-changed" signal.  Instead, we have to try and
 411      predict what widgets and signals are likely to exist in our dialogs. */
 412
 413   if ( GTK_IS_TOGGLE_BUTTON (w))
 414     {
 415       g_signal_connect_swapped (w, "toggled",
 416                                 G_CALLBACK (psppire_dialog_notify_change),
 417                                 dialog);
 418     }
 419
 420   if ( PSPPIRE_IS_SELECTOR (w))
 421     {
 422       g_signal_connect_swapped (w, "selected",
 423                                 G_CALLBACK (psppire_dialog_notify_change),
 424                                 dialog);
 425
 426       g_signal_connect_swapped (w, "de-selected",
 427                                 G_CALLBACK (psppire_dialog_notify_change),
 428                                 dialog);
 429     }
 430
 431   if ( GTK_IS_EDITABLE (w))
 432     {
 433       g_signal_connect_swapped (w, "changed",
 434                                 G_CALLBACK (psppire_dialog_notify_change),
 435                                 dialog);
 436     }
 437
 438   if ( GTK_IS_CELL_EDITABLE (w))
 439     {
 440       g_signal_connect_swapped (w, "editing-done",
 441                                 G_CALLBACK (psppire_dialog_notify_change),
 442                                 dialog);
 443     }
 444
 445   if ( GTK_IS_TEXT_VIEW (w))
 446     {
 447       GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (w));
 448
 449       g_signal_connect_swapped (buffer, "changed",
 450                                 G_CALLBACK (psppire_dialog_notify_change),
 451                                 dialog);
 452     }
 453
 454   if ( GTK_IS_TREE_VIEW (w))
 455     {
 456       gint i = 0;
 457       GtkTreeView *tv = GTK_TREE_VIEW (w);
 458       GtkTreeSelection *selection =
 459         gtk_tree_view_get_selection (tv);
 460       GtkTreeViewColumn *col;
 461       GtkTreeModel *model = gtk_tree_view_get_model (tv);
 462
 463       if ( model)
 464         {
 465       g_signal_connect_swapped (model, "row-changed",
 466                                 G_CALLBACK (psppire_dialog_notify_change),
 467                                 dialog);
 468
 469       g_signal_connect_swapped (model, "row-deleted",
 470                                 G_CALLBACK (psppire_dialog_notify_change),
 471                                 dialog);
 472
 473       g_signal_connect_swapped (model, "row-inserted",
 474                                 G_CALLBACK (psppire_dialog_notify_change),
 475                                 dialog);
 476         }
 477
 478       g_signal_connect_swapped (selection, "changed",
 479                                 G_CALLBACK (psppire_dialog_notify_change),
 480                                 dialog);
 481
 482       while ((col = gtk_tree_view_get_column (tv, i++)))
 483         {
 484           GList *renderers = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (col));
 485           GList *start = renderers;
 486           while (renderers)
 487             {
 488               if ( GTK_IS_CELL_RENDERER_TOGGLE (renderers->data))
 489                 g_signal_connect_swapped (renderers->data, "toggled",
 490                                           G_CALLBACK (psppire_dialog_notify_change), dialog);
 491               renderers = renderers->next;
 492             }
 493           g_list_free (start);
 494         }
 495     }
 496 }
 497
 498
 499 gint
 500 psppire_dialog_run (PsppireDialog *dialog)
 501 {
 502   if ( dialog->contents_are_valid != NULL )
 503     gtk_container_foreach (GTK_CONTAINER (dialog->box),
 504                            connect_notify_signal,
 505                            dialog);
 506
 507   dialog->loop = g_main_loop_new (NULL, FALSE);
 508
 509   gtk_widget_show (GTK_WIDGET (dialog));
 510
 511   if ( dialog->contents_are_valid != NULL)
 512     g_signal_emit (dialog, signals [VALIDITY_CHANGED], 0, FALSE);
 513
 514   g_signal_emit (dialog, signals [DIALOG_REFRESH], 0);
 515
 516   gdk_threads_leave ();
 517   g_main_loop_run (dialog->loop);
 518   gdk_threads_enter ();
 519
 520   g_main_loop_unref (dialog->loop);
 521
 522   return dialog->response;
 523 }
 524
 525
 526 void
 527 psppire_dialog_reload (PsppireDialog *dialog)
 528 {
 529   g_signal_emit (dialog, signals [DIALOG_REFRESH], 0);
 530 }
 531
 532
 533
 534
 535 GType
 536 psppire_orientation_get_type (void)
 537 {
 538   static GType etype = 0;
 539   if (etype == 0)
 540     {
 541       static const GEnumValue values[] =
 542         {
 543           { PSPPIRE_HORIZONTAL, "PSPPIRE_HORIZONTAL", "Horizontal" },
 544           { PSPPIRE_VERTICAL,   "PSPPIRE_VERTICAL",   "Vertical" },
 545           { PSPPIRE_TABULAR,   "PSPPIRE_TABULAR",   "Tabular" },
 546           { 0, NULL, NULL }
 547         };
 548
 549       etype = g_enum_register_static
 550         (g_intern_static_string ("PsppireOrientation"), values);
 551
 552     }
 553   return etype;
 554 }
 555
 556
 557 void
 558 psppire_dialog_set_valid_predicate (PsppireDialog *dialog,
 559                                     ContentsAreValid contents_are_valid,
 560                                     gpointer data)
 561 {
 562   dialog->contents_are_valid = contents_are_valid;
 563   dialog->validity_data = data;
 564 }
 565
 566
 567
 568
 569
 570 static GObject *
 571 get_internal_child    (GtkBuildable *buildable,
 572                        GtkBuilder *builder,
 573                        const gchar *childname)
 574 {
 575   PsppireDialog *dialog = PSPPIRE_DIALOG (buildable);
 576
 577   if ( 0 == strcmp (childname, "hbox"))
 578     return G_OBJECT (dialog->box);
 579
 580   return NULL;
 581 }
 582
 583
 584
 585 static void
 586 psppire_dialog_buildable_init (GtkBuildableIface *iface)
 587 {
 588   iface->get_internal_child = get_internal_child;
 589 }