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 "psppire-dialog.h"
  23 #include "psppire-buttonbox.h"
  24 #include "psppire-selector.h"
  25
  26 static void psppire_dialog_class_init          (PsppireDialogClass *);
  27 static void psppire_dialog_init                (PsppireDialog      *);
  28
  29
  30 enum  {DIALOG_REFRESH,
  31        VALIDITY_CHANGED,
  32        n_SIGNALS};
  33
  34 static guint signals [n_SIGNALS];
  35
  36
  37 GType
  38 psppire_dialog_get_type (void)
  39 {
  40   static GType dialog_type = 0;
  41
  42   if (!dialog_type)
  43     {
  44       static const GTypeInfo dialog_info =
  45       {
  46         sizeof (PsppireDialogClass),
  47         NULL, /* base_init */
  48         NULL, /* base_finalize */
  49         (GClassInitFunc) psppire_dialog_class_init,
  50         NULL, /* class_finalize */
  51         NULL, /* class_data */
  52         sizeof (PsppireDialog),
  53         0,
  54         (GInstanceInitFunc) psppire_dialog_init,
  55       };
  56
  57       dialog_type = g_type_register_static (GTK_TYPE_WINDOW,
  58                                             "PsppireDialog", &dialog_info, 0);
  59     }
  60
  61   return dialog_type;
  62 }
  63
  64
  65
  66 static GObjectClass     *parent_class = NULL;
  67
  68
  69 static void
  70 psppire_dialog_finalize (GObject *object)
  71 {
  72   PsppireDialog *dialog ;
  73
  74   g_return_if_fail (object != NULL);
  75   g_return_if_fail (PSPPIRE_IS_DIALOG (object));
  76
  77   dialog = PSPPIRE_DIALOG (object);
  78
  79   if (G_OBJECT_CLASS (parent_class)->finalize)
  80     G_OBJECT_CLASS (parent_class)->finalize (object);
  81 }
  82
  83
  84
  85 /* Properties */
  86 enum
  87 {
  88   PROP_0,
  89   PROP_ORIENTATION
  90 };
  91
  92
  93 static void
  94 psppire_dialog_get_property (GObject         *object,
  95                              guint            prop_id,
  96                              GValue          *value,
  97                              GParamSpec      *pspec)
  98 {
  99   PsppireDialog *dialog = PSPPIRE_DIALOG (object);
 100
 101   switch (prop_id)
 102     {
 103     case PROP_ORIENTATION:
 104       {
 105         if ( GTK_IS_VBOX (dialog->box) )
 106           g_value_set_enum (value, PSPPIRE_VERTICAL);
 107         else if ( GTK_IS_HBOX (dialog->box))
 108           g_value_set_enum (value, PSPPIRE_HORIZONTAL);
 109         else if ( GTK_IS_TABLE (dialog->box))
 110           g_value_set_enum (value, PSPPIRE_TABULAR);
 111       }
 112       break;
 113     default:
 114       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 115       break;
 116     };
 117 }
 118
 119
 120 static void
 121 dialog_set_orientation (PsppireDialog *dialog, const GValue *orval)
 122 {
 123   PsppireOrientation orientation = g_value_get_enum (orval);
 124
 125   if ( dialog->box != NULL)
 126     {
 127       gtk_container_remove (GTK_CONTAINER (dialog), dialog->box);
 128     }
 129
 130   switch ( orientation )
 131     {
 132     case PSPPIRE_HORIZONTAL:
 133       dialog->box = gtk_hbox_new (FALSE, 5);
 134       break;
 135     case PSPPIRE_VERTICAL:
 136       dialog->box = gtk_vbox_new (FALSE, 5);
 137       break;
 138     case PSPPIRE_TABULAR:
 139       dialog->box = gtk_table_new (2, 3, FALSE);
 140       g_object_set (dialog->box,
 141                     "row-spacing", 5,
 142                     "column-spacing", 5,
 143                     NULL);
 144       break;
 145     }
 146
 147   gtk_container_add (GTK_CONTAINER (dialog), dialog->box);
 148 }
 149
 150
 151 static void
 152 psppire_dialog_set_property (GObject         *object,
 153                              guint            prop_id,
 154                              const GValue    *value,
 155                              GParamSpec      *pspec)
 156
 157 {
 158   PsppireDialog *dialog = PSPPIRE_DIALOG (object);
 159
 160   switch (prop_id)
 161     {
 162     case PROP_ORIENTATION:
 163       dialog_set_orientation (dialog, value);
 164       break;
 165     default:
 166       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 167       break;
 168     };
 169 }
 170
 171
 172 static GParamSpec *orientation_spec ;
 173
 174 static void
 175 psppire_dialog_class_init (PsppireDialogClass *class)
 176 {
 177   GObjectClass *object_class = (GObjectClass *) class;
 178
 179
 180   orientation_spec =
 181     g_param_spec_enum ("orientation",
 182                        "Orientation",
 183                        "Which way widgets are packed",
 184                        G_TYPE_PSPPIRE_ORIENTATION,
 185                        PSPPIRE_HORIZONTAL /* default value */,
 186                        G_PARAM_CONSTRUCT_ONLY |G_PARAM_READWRITE);
 187
 188
 189   object_class->set_property = psppire_dialog_set_property;
 190   object_class->get_property = psppire_dialog_get_property;
 191
 192   g_object_class_install_property (object_class,
 193                                    PROP_ORIENTATION,
 194                                    orientation_spec);
 195
 196
 197
 198   signals [DIALOG_REFRESH] =
 199     g_signal_new ("refresh",
 200                   G_TYPE_FROM_CLASS (class),
 201                   G_SIGNAL_RUN_FIRST,
 202                   0,
 203                   NULL, NULL,
 204                   g_cclosure_marshal_VOID__VOID,
 205                   G_TYPE_NONE,
 206                   0);
 207
 208
 209   signals [VALIDITY_CHANGED] =
 210     g_signal_new ("validity-changed",
 211                   G_TYPE_FROM_CLASS (class),
 212                   G_SIGNAL_RUN_FIRST,
 213                   0,
 214                   NULL, NULL,
 215                   g_cclosure_marshal_VOID__BOOLEAN,
 216                   G_TYPE_NONE,
 217                   1,
 218                   G_TYPE_BOOLEAN);
 219
 220
 221   object_class->finalize = psppire_dialog_finalize;
 222 }
 223
 224
 225
 226
 227 static void
 228 close_dialog (GtkWidget *w, gpointer data)
 229 {
 230   PsppireDialog *dialog = data;
 231
 232   psppire_dialog_close (dialog);
 233 }
 234
 235 void
 236 psppire_dialog_close (PsppireDialog *dialog)
 237 {
 238   g_main_loop_quit (dialog->loop);
 239   gtk_widget_hide (GTK_WIDGET (dialog));
 240 }
 241
 242
 243 static void
 244 delete_event_callback (GtkWidget *w, GdkEvent *e, gpointer data)
 245 {
 246   close_dialog (w, data);
 247 }
 248
 249
 250 static void
 251 psppire_dialog_init (PsppireDialog *dialog)
 252 {
 253   GValue value = {0};
 254   dialog->box = NULL;
 255   dialog->contents_are_valid = NULL;
 256   dialog->validity_data = NULL;
 257
 258   g_value_init (&value, orientation_spec->value_type);
 259   g_param_value_set_default (orientation_spec, &value);
 260
 261   gtk_window_set_type_hint (GTK_WINDOW (dialog),
 262         GDK_WINDOW_TYPE_HINT_DIALOG);
 263
 264   dialog_set_orientation (dialog, &value);
 265
 266   g_value_unset (&value);
 267
 268   g_signal_connect (G_OBJECT (dialog), "delete-event",
 269                     G_CALLBACK (delete_event_callback),
 270                     dialog);
 271
 272   gtk_window_set_type_hint (GTK_WINDOW (dialog),
 273         GDK_WINDOW_TYPE_HINT_DIALOG);
 274
 275   gtk_widget_show_all (dialog->box);
 276 }
 277
 278
 279 GtkWidget*
 280 psppire_dialog_new (void)
 281 {
 282   PsppireDialog *dialog ;
 283
 284   dialog = g_object_new (psppire_dialog_get_type (), NULL);
 285
 286   return GTK_WIDGET (dialog) ;
 287 }
 288
 289
 290 void
 291 psppire_dialog_notify_change (PsppireDialog *dialog)
 292 {
 293   if ( dialog->contents_are_valid )
 294     {
 295       gboolean valid = dialog->contents_are_valid (dialog->validity_data);
 296
 297       g_signal_emit (dialog, signals [VALIDITY_CHANGED], 0, valid);
 298     }
 299 }
 300
 301
 302 /* Descend the widget tree, connecting appropriate signals to the
 303    psppire_dialog_notify_change callback */
 304 static void
 305 connect_notify_signal (GtkWidget *w, gpointer data)
 306 {
 307   PsppireDialog *dialog = data;
 308
 309   if ( PSPPIRE_IS_BUTTONBOX (w))
 310     return;
 311
 312
 313
 314   if ( GTK_IS_CONTAINER (w))
 315     {
 316       gtk_container_foreach (GTK_CONTAINER (w),
 317                              connect_notify_signal,
 318                              dialog);
 319     }
 320
 321
 322   /* It's unfortunate that GTK+ doesn't have a generic
 323      "user-modified-state-changed" signal.  Instead, we have to try and
 324      predict what widgets and signals are likely to exist in our dialogs. */
 325
 326   if ( GTK_IS_TOGGLE_BUTTON (w))
 327     {
 328       g_signal_connect_swapped (w, "toggled",
 329                                 G_CALLBACK (psppire_dialog_notify_change),
 330                                 dialog);
 331     }
 332
 333   if ( PSPPIRE_IS_SELECTOR (w))
 334     {
 335       g_signal_connect_swapped (w, "selected",
 336                                 G_CALLBACK (psppire_dialog_notify_change),
 337                                 dialog);
 338
 339       g_signal_connect_swapped (w, "de-selected",
 340                                 G_CALLBACK (psppire_dialog_notify_change),
 341                                 dialog);
 342     }
 343
 344   if ( GTK_IS_EDITABLE (w))
 345     {
 346       g_signal_connect_swapped (w, "changed",
 347                                 G_CALLBACK (psppire_dialog_notify_change),
 348                                 dialog);
 349     }
 350
 351   if ( GTK_IS_CELL_EDITABLE (w))
 352     {
 353       g_signal_connect_swapped (w, "editing-done",
 354                                 G_CALLBACK (psppire_dialog_notify_change),
 355                                 dialog);
 356     }
 357
 358   if ( GTK_IS_TEXT_VIEW (w))
 359     {
 360       GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (w));
 361
 362       g_signal_connect_swapped (buffer, "changed",
 363                                 G_CALLBACK (psppire_dialog_notify_change),
 364                                 dialog);
 365     }
 366
 367   if ( GTK_IS_TREE_VIEW (w))
 368     {
 369       gint i = 0;
 370       GtkTreeView *tv = GTK_TREE_VIEW (w);
 371       GtkTreeSelection *selection =
 372         gtk_tree_view_get_selection (tv);
 373       GtkTreeViewColumn *col;
 374       GtkTreeModel *model = gtk_tree_view_get_model (tv);
 375
 376       g_signal_connect_swapped (model, "row-changed",
 377                                 G_CALLBACK (psppire_dialog_notify_change),
 378                                 dialog);
 379
 380       g_signal_connect_swapped (model, "row-deleted",
 381                                 G_CALLBACK (psppire_dialog_notify_change),
 382                                 dialog);
 383
 384       g_signal_connect_swapped (model, "row-inserted",
 385                                 G_CALLBACK (psppire_dialog_notify_change),
 386                                 dialog);
 387
 388       g_signal_connect_swapped (selection, "changed",
 389                                 G_CALLBACK (psppire_dialog_notify_change),
 390                                 dialog);
 391
 392       while ((col = gtk_tree_view_get_column (tv, i++)))
 393         {
 394           GList *renderers = gtk_tree_view_column_get_cell_renderers (col);
 395           GList *start = renderers;
 396           while (renderers)
 397             {
 398               if ( GTK_IS_CELL_RENDERER_TOGGLE (renderers->data))
 399                 g_signal_connect_swapped (renderers->data, "toggled",
 400                                           G_CALLBACK (psppire_dialog_notify_change), dialog);
 401               renderers = renderers->next;
 402             }
 403           g_list_free (start);
 404         }
 405     }
 406 }
 407
 408
 409 gint
 410 psppire_dialog_run (PsppireDialog *dialog)
 411 {
 412   if ( dialog->contents_are_valid != NULL )
 413     gtk_container_foreach (GTK_CONTAINER (dialog->box),
 414                            connect_notify_signal,
 415                            dialog);
 416
 417   dialog->loop = g_main_loop_new (NULL, FALSE);
 418
 419   gtk_widget_show (GTK_WIDGET (dialog));
 420
 421   if ( dialog->contents_are_valid != NULL)
 422     g_signal_emit (dialog, signals [VALIDITY_CHANGED], 0, FALSE);
 423
 424   g_signal_emit (dialog, signals [DIALOG_REFRESH], 0);
 425
 426   g_main_loop_run (dialog->loop);
 427
 428   return dialog->response;
 429 }
 430
 431
 432 void
 433 psppire_dialog_reload (PsppireDialog *dialog)
 434 {
 435   g_signal_emit (dialog, signals [DIALOG_REFRESH], 0);
 436 }
 437
 438
 439
 440
 441 GType
 442 psppire_orientation_get_type (void)
 443 {
 444   static GType etype = 0;
 445   if (etype == 0)
 446     {
 447       static const GEnumValue values[] =
 448         {
 449           { PSPPIRE_HORIZONTAL, "PSPPIRE_HORIZONTAL", "Horizontal" },
 450           { PSPPIRE_VERTICAL,   "PSPPIRE_VERTICAL",   "Vertical" },
 451           { PSPPIRE_TABULAR,   "PSPPIRE_TABULAR",   "Tabular" },
 452           { 0, NULL, NULL }
 453         };
 454
 455       etype = g_enum_register_static
 456         (g_intern_static_string ("PsppireOrientation"), values);
 457
 458     }
 459   return etype;
 460 }
 461
 462
 463 void
 464 psppire_dialog_set_valid_predicate (PsppireDialog *dialog,
 465                                     ContentsAreValid contents_are_valid,
 466                                     gpointer data)
 467 {
 468   dialog->contents_are_valid = contents_are_valid;
 469   dialog->validity_data = data;
 470 }
 471
 472