pintos-os.org Git - pspp/blob - src/ui/gui/psppire-dictview.c

   1 /* PSPPIRE - a graphical user interface for PSPP.
   2    Copyright (C) 2009, 2010, 2011, 2012  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 #include <config.h>
  18
  19 #include <gtk/gtk.h>
  20 #include "psppire-dictview.h"
  21 #include "psppire-dict.h"
  22 #include "psppire-conf.h"
  23 #include <data/format.h>
  24 #include <libpspp/i18n.h>
  25 #include "helper.h"
  26
  27 #include <gettext.h>
  28 #define _(msgid) gettext (msgid)
  29 #define N_(msgid) msgid
  30
  31 static void psppire_dict_view_base_finalize (PsppireDictViewClass *, gpointer);
  32 static void psppire_dict_view_base_init     (PsppireDictViewClass *class);
  33 static void psppire_dict_view_class_init    (PsppireDictViewClass *class);
  34 static void psppire_dict_view_init          (PsppireDictView      *dict_view);
  35
  36
  37 GType
  38 psppire_dict_view_get_type (void)
  39 {
  40   static GType psppire_dict_view_type = 0;
  41
  42   if (!psppire_dict_view_type)
  43     {
  44       static const GTypeInfo psppire_dict_view_info =
  45       {
  46         sizeof (PsppireDictViewClass),
  47         (GBaseInitFunc) psppire_dict_view_base_init,
  48         (GBaseFinalizeFunc) psppire_dict_view_base_finalize,
  49         (GClassInitFunc)psppire_dict_view_class_init,
  50         (GClassFinalizeFunc) NULL,
  51         NULL,
  52         sizeof (PsppireDictView),
  53         0,
  54         (GInstanceInitFunc) psppire_dict_view_init,
  55       };
  56
  57       psppire_dict_view_type =
  58         g_type_register_static (GTK_TYPE_TREE_VIEW, "PsppireDictView",
  59                                 &psppire_dict_view_info, 0);
  60     }
  61
  62   return psppire_dict_view_type;
  63 }
  64
  65
  66 static void
  67 psppire_dict_view_finalize (GObject *object)
  68 {
  69   PsppireDictView *dict_view = PSPPIRE_DICT_VIEW (object);
  70
  71   gtk_widget_destroy (dict_view->menu);
  72 }
  73
  74 /* Properties */
  75 enum
  76 {
  77   PROP_0,
  78   PROP_DICTIONARY,
  79   PROP_PREDICATE,
  80   PROP_SELECTION_MODE
  81 };
  82
  83
  84 /* A GtkTreeModelFilterVisibleFunc to filter lines in the treeview */
  85 static gboolean
  86 filter_variables (GtkTreeModel *model, GtkTreeIter *iter, gpointer data)
  87 {
  88   var_predicate_func *predicate = data;
  89   struct variable *var;
  90   PsppireDict *dict = PSPPIRE_DICT (model);
  91
  92   GtkTreePath *path = gtk_tree_model_get_path (model, iter);
  93
  94   gint *idx = gtk_tree_path_get_indices (path);
  95
  96   var =  psppire_dict_get_variable (dict, *idx);
  97
  98   gtk_tree_path_free (path);
  99
 100   return predicate (var);
 101 }
 102
 103 static void
 104 set_model (PsppireDictView *dict_view)
 105 {
 106   GtkTreeModel *model ;
 107
 108   if ( dict_view->dict == NULL)
 109     return;
 110
 111    if ( dict_view->predicate )
 112     {
 113       model = gtk_tree_model_filter_new (GTK_TREE_MODEL (dict_view->dict),
 114                                          NULL);
 115
 116       gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (model),
 117                                               filter_variables,
 118                                               dict_view->predicate,
 119                                               NULL);
 120     }
 121   else
 122     {
 123       model = GTK_TREE_MODEL (dict_view->dict);
 124       g_object_ref (model);
 125     }
 126
 127   gtk_tree_view_set_model (GTK_TREE_VIEW (dict_view), model);
 128   g_object_unref (model);
 129 }
 130
 131 static void
 132 psppire_dict_view_set_property (GObject         *object,
 133                                guint            prop_id,
 134                                const GValue    *value,
 135                                GParamSpec      *pspec)
 136 {
 137   PsppireDictView *dict_view = PSPPIRE_DICT_VIEW (object);
 138
 139   switch (prop_id)
 140     {
 141     case PROP_DICTIONARY:
 142       dict_view->dict = g_value_get_object (value);
 143       break;
 144     case PROP_PREDICATE:
 145       dict_view->predicate = g_value_get_pointer (value);
 146       break;
 147     case PROP_SELECTION_MODE:
 148       {
 149         GtkTreeSelection *selection =
 150           gtk_tree_view_get_selection (GTK_TREE_VIEW (dict_view));
 151
 152         GtkSelectionMode mode = g_value_get_enum (value);
 153
 154         gtk_tree_selection_set_mode (selection, mode);
 155       }
 156       break;
 157     default:
 158       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 159       break;
 160     };
 161
 162
 163   set_model (dict_view);
 164 }
 165
 166
 167 static void
 168 psppire_dict_view_get_property (GObject         *object,
 169                                guint            prop_id,
 170                                GValue          *value,
 171                                GParamSpec      *pspec)
 172 {
 173   PsppireDictView *dict_view = PSPPIRE_DICT_VIEW (object);
 174
 175   switch (prop_id)
 176     {
 177     case PROP_DICTIONARY:
 178       g_value_set_object (value, dict_view->dict);
 179       break;
 180     case PROP_PREDICATE:
 181       g_value_set_pointer (value, dict_view->predicate);
 182       break;
 183     case PROP_SELECTION_MODE:
 184       {
 185         GtkTreeSelection *selection =
 186           gtk_tree_view_get_selection (GTK_TREE_VIEW (dict_view));
 187
 188         g_value_set_enum (value, gtk_tree_selection_get_mode (selection));
 189       }
 190     default:
 191       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 192       break;
 193     };
 194 }
 195
 196
 197
 198 static void
 199 psppire_dict_view_class_init (PsppireDictViewClass *class)
 200 {
 201   GObjectClass *object_class = G_OBJECT_CLASS (class);
 202
 203   GParamSpec *predicate_spec =
 204     g_param_spec_pointer ("predicate",
 205                           "Predicate",
 206                           "A predicate function",
 207                           G_PARAM_READABLE | G_PARAM_WRITABLE);
 208
 209
 210   GParamSpec *selection_mode_spec =
 211     g_param_spec_enum ("selection-mode",
 212                        "Selection Mode",
 213                        "How many things can be selected",
 214                        GTK_TYPE_SELECTION_MODE,
 215                        GTK_SELECTION_MULTIPLE,
 216                        G_PARAM_CONSTRUCT | G_PARAM_READABLE | G_PARAM_WRITABLE);
 217
 218   object_class->set_property = psppire_dict_view_set_property;
 219   object_class->get_property = psppire_dict_view_get_property;
 220
 221   g_object_class_override_property (object_class,
 222                                     PROP_DICTIONARY,
 223                                     "model");
 224
 225   g_object_class_install_property (object_class,
 226                                    PROP_PREDICATE,
 227                                    predicate_spec);
 228
 229   g_object_class_install_property (object_class,
 230                                    PROP_SELECTION_MODE,
 231                                    selection_mode_spec);
 232 }
 233
 234
 235 static void
 236 psppire_dict_view_base_init (PsppireDictViewClass *class)
 237 {
 238   GObjectClass *object_class = G_OBJECT_CLASS (class);
 239
 240   object_class->finalize = psppire_dict_view_finalize;
 241 }
 242
 243
 244
 245 static void
 246 psppire_dict_view_base_finalize (PsppireDictViewClass *class,
 247                                  gpointer class_data)
 248 {
 249
 250 }
 251
 252
 253 static void
 254 dv_get_base_model (GtkTreeModel *top_model, GtkTreeIter *top_iter,
 255                 GtkTreeModel **model, GtkTreeIter *iter)
 256 {
 257   *model = top_model;
 258
 259   if ( iter)
 260     *iter = *top_iter;
 261
 262   while ( ! PSPPIRE_IS_DICT (*model))
 263     {
 264       GtkTreeIter parent_iter;
 265       if (iter)
 266         parent_iter = *iter;
 267
 268       if ( GTK_IS_TREE_MODEL_FILTER (*model))
 269         {
 270           GtkTreeModelFilter *parent_model = GTK_TREE_MODEL_FILTER (*model);
 271
 272           *model = gtk_tree_model_filter_get_model (parent_model);
 273
 274           if (iter)
 275             gtk_tree_model_filter_convert_iter_to_child_iter (parent_model,
 276                                                               iter,
 277                                                               &parent_iter);
 278         }
 279       else if (GTK_IS_TREE_MODEL_SORT (*model))
 280         {
 281           GtkTreeModelSort *parent_model = GTK_TREE_MODEL_SORT (*model);
 282
 283           *model = gtk_tree_model_sort_get_model (parent_model);
 284
 285           if (iter)
 286             gtk_tree_model_sort_convert_iter_to_child_iter (parent_model,
 287                                                             iter,
 288                                                             &parent_iter);
 289         }
 290     }
 291 }
 292
 293
 294
 295 /* A GtkTreeCellDataFunc which renders the name and/or label of the
 296    variable */
 297 static void
 298 var_description_cell_data_func (GtkTreeViewColumn *col,
 299                                 GtkCellRenderer *cell,
 300                                 GtkTreeModel *top_model,
 301                                 GtkTreeIter *top_iter,
 302                                 gpointer data)
 303 {
 304   PsppireDictView *dv = PSPPIRE_DICT_VIEW (data);
 305   struct variable *var;
 306   GtkTreeIter iter;
 307   GtkTreeModel *model;
 308   PsppireDict *dict;
 309
 310   dv_get_base_model (top_model, top_iter, &model, &iter);
 311
 312   dict = PSPPIRE_DICT (model);
 313
 314   gtk_tree_model_get (model,
 315                       &iter, DICT_TVM_COL_VAR, &var, -1);
 316
 317   if ( var_has_label (var) && dv->prefer_labels)
 318     {
 319       gchar *text = g_markup_printf_escaped (
 320                                      "<span stretch=\"condensed\">%s</span>",
 321                                      var_get_label (var));
 322
 323       g_object_set (cell, "markup", text, NULL);
 324       g_free (text);
 325     }
 326   else
 327     {
 328       g_object_set (cell, "text", var_get_name (var), NULL);
 329     }
 330 }
 331
 332
 333
 334 /* A GtkTreeCellDataFunc which sets the icon appropriate to the type
 335    of variable */
 336 static void
 337 var_icon_cell_data_func (GtkTreeViewColumn *col,
 338                        GtkCellRenderer *cell,
 339                        GtkTreeModel *model,
 340                        GtkTreeIter *iter,
 341                        gpointer data)
 342 {
 343   struct variable *var;
 344   gtk_tree_model_get (model, iter, DICT_TVM_COL_VAR, &var, -1);
 345
 346   if ( var_is_alpha (var))
 347     {
 348       g_object_set (cell, "stock-id", "var-string", NULL);
 349     }
 350   else
 351     {
 352       const struct fmt_spec *fs = var_get_print_format (var);
 353       int cat = fmt_get_category (fs->type);
 354       switch ( var_get_measure (var))
 355         {
 356         case MEASURE_NOMINAL:
 357           g_object_set (cell, "stock-id", "var-nominal", NULL);
 358           break;
 359         case MEASURE_ORDINAL:
 360           g_object_set (cell, "stock-id", "var-ordinal", NULL);
 361           break;
 362         case MEASURE_SCALE:
 363           if ( ( FMT_CAT_DATE | FMT_CAT_TIME ) & cat )
 364             g_object_set (cell, "stock-id", "var-date-scale", NULL);
 365           else
 366             g_object_set (cell, "stock-id", "var-scale", NULL);
 367           break;
 368         default:
 369           g_assert_not_reached ();
 370         };
 371     }
 372 }
 373
 374
 375 /* Sets the tooltip to be the name of the variable under the cursor */
 376 static gboolean
 377 set_tooltip_for_variable (GtkTreeView  *treeview,
 378                           gint        x,
 379                           gint        y,
 380                           gboolean    keyboard_mode,
 381                           GtkTooltip *tooltip,
 382                           gpointer    user_data)
 383 {
 384   gint bx, by;
 385   GtkTreeIter iter;
 386   GtkTreePath *path;
 387   GtkTreeModel *tree_model;
 388   struct variable *var = NULL;
 389   gboolean ok;
 390
 391   gtk_tree_view_convert_widget_to_bin_window_coords (treeview,
 392                                                      x, y, &bx, &by);
 393
 394   if (!gtk_tree_view_get_path_at_pos (treeview, bx, by,
 395                                       &path, NULL, NULL, NULL))
 396     return FALSE;
 397
 398   tree_model = gtk_tree_view_get_model (treeview);
 399
 400   gtk_tree_view_set_tooltip_row (treeview, tooltip, path);
 401
 402   ok = gtk_tree_model_get_iter (tree_model, &iter, path);
 403
 404   gtk_tree_path_free (path);
 405   if (!ok)
 406     return FALSE;
 407
 408
 409   gtk_tree_model_get (tree_model, &iter, DICT_TVM_COL_VAR,  &var, -1);
 410
 411   if ( ! var_has_label (var))
 412     return FALSE;
 413
 414   {
 415     const gchar *tip ;
 416     GtkTreeModel *m;
 417     PsppireDict *dict;
 418
 419     dv_get_base_model (tree_model, NULL, &m, NULL);
 420     dict = PSPPIRE_DICT (m);
 421
 422     if ( PSPPIRE_DICT_VIEW (treeview)->prefer_labels )
 423       tip = var_get_name (var);
 424     else
 425       tip = var_get_label (var);
 426
 427     gtk_tooltip_set_text (tooltip, tip);
 428   }
 429
 430   return TRUE;
 431 }
 432
 433 static gboolean
 434 show_menu (PsppireDictView *dv, GdkEventButton *event, gpointer data)
 435 {
 436   if (event->button != 3)
 437     return FALSE;
 438
 439   gtk_menu_popup (GTK_MENU (dv->menu), NULL, NULL, NULL, NULL,
 440                   event->button, event->time);
 441
 442   return TRUE;
 443 }
 444
 445 static void
 446 toggle_label_preference (GtkCheckMenuItem *checkbox, gpointer data)
 447 {
 448   PsppireDictView *dv = PSPPIRE_DICT_VIEW (data);
 449
 450   dv->prefer_labels = gtk_check_menu_item_get_active (checkbox);
 451
 452   gtk_widget_queue_draw (GTK_WIDGET (dv));
 453 }
 454
 455
 456
 457 static void
 458 psppire_dict_view_init (PsppireDictView *dict_view)
 459 {
 460   GtkTreeViewColumn *col = gtk_tree_view_column_new ();
 461
 462   GtkCellRenderer *renderer = gtk_cell_renderer_pixbuf_new ();
 463
 464   dict_view->prefer_labels = TRUE;
 465
 466   psppire_conf_get_boolean (psppire_conf_new (),
 467                             G_OBJECT_TYPE_NAME (dict_view),
 468                             "prefer-labels",
 469                             &dict_view->prefer_labels);
 470
 471   gtk_tree_view_column_set_title (col, _("Variable"));
 472
 473   gtk_tree_view_column_pack_start (col, renderer, FALSE);
 474
 475   gtk_tree_view_column_set_cell_data_func (col, renderer,
 476                                            var_icon_cell_data_func,
 477                                            NULL, NULL);
 478
 479   renderer = gtk_cell_renderer_text_new ();
 480   gtk_tree_view_column_pack_start (col, renderer, TRUE);
 481   gtk_tree_view_column_set_cell_data_func (col, renderer,
 482                                            var_description_cell_data_func,
 483                                            dict_view, NULL);
 484
 485   g_object_set (renderer, "ellipsize-set", TRUE, NULL);
 486   g_object_set (renderer, "ellipsize", PANGO_ELLIPSIZE_MIDDLE, NULL);
 487
 488   gtk_tree_view_column_set_sizing (col, GTK_TREE_VIEW_COLUMN_FIXED);
 489
 490   /* FIXME: make this a value in terms of character widths */
 491   gtk_tree_view_column_set_min_width (col, 150);
 492
 493   gtk_tree_view_append_column (GTK_TREE_VIEW (dict_view), col);
 494
 495   g_object_set (dict_view,
 496                 "has-tooltip", TRUE,
 497                 "headers-visible", FALSE,
 498                 NULL);
 499
 500   g_signal_connect (dict_view, "query-tooltip",
 501                     G_CALLBACK (set_tooltip_for_variable), NULL);
 502
 503   dict_view->menu = gtk_menu_new ();
 504
 505
 506   {
 507     GtkWidget *checkbox =
 508       gtk_check_menu_item_new_with_label  (_("Prefer variable labels"));
 509
 510     gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (checkbox),
 511                                     dict_view->prefer_labels);
 512
 513     g_signal_connect (checkbox, "toggled",
 514                       G_CALLBACK (toggle_label_preference), dict_view);
 515
 516
 517     gtk_menu_shell_append (GTK_MENU_SHELL (dict_view->menu), checkbox);
 518
 519   }
 520
 521   gtk_widget_show_all (dict_view->menu);
 522
 523   g_signal_connect (dict_view, "button-press-event",
 524                     G_CALLBACK (show_menu), NULL);
 525 }
 526
 527
 528 GtkWidget*
 529 psppire_dict_view_new (void)
 530 {
 531   return GTK_WIDGET (g_object_new (psppire_dict_view_get_type (), NULL));
 532 }
 533
 534
 535
 536 struct variable *
 537 psppire_dict_view_get_selected_variable (PsppireDictView *treeview)
 538 {
 539   struct variable *var;
 540   GtkTreeModel *top_model;
 541   GtkTreeIter top_iter;
 542
 543   GtkTreeModel *model;
 544   GtkTreeIter iter;
 545
 546   GtkTreeSelection *selection =
 547     gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview));
 548
 549   if (! gtk_tree_selection_get_selected (selection,
 550                                          &top_model, &top_iter))
 551     return NULL;
 552
 553   dv_get_base_model (top_model, &top_iter, &model, &iter);
 554
 555   g_assert (PSPPIRE_IS_DICT (model));
 556
 557   gtk_tree_model_get (model,
 558                       &iter, DICT_TVM_COL_VAR, &var, -1);
 559
 560   return var;
 561 }
 562
 563