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

   1 /* PSPPIRE - a graphical user interface for PSPP.
   2    Copyright (C) 2013  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 #include <glib.h>
  20
  21 #include "psppire-spreadsheet-model.h"
  22
  23 #include "data/spreadsheet-reader.h"
  24
  25 #include "data/gnumeric-reader.h"
  26
  27 static void psppire_spreadsheet_model_init (PsppireSpreadsheetModel *
  28                                             spreadsheetModel);
  29 static void psppire_spreadsheet_model_class_init (PsppireSpreadsheetModelClass
  30                                                   * class);
  31
  32 static void psppire_spreadsheet_model_finalize (GObject * object);
  33 static void psppire_spreadsheet_model_dispose (GObject * object);
  34
  35 static GObjectClass *parent_class = NULL;
  36
  37
  38 static void spreadsheet_tree_model_init (GtkTreeModelIface * iface);
  39
  40
  41 GType
  42 psppire_spreadsheet_model_get_type (void)
  43 {
  44   static GType object_type = 0;
  45
  46   if (!object_type)
  47     {
  48       static const GTypeInfo spreadsheet_model_info = {
  49         sizeof (PsppireSpreadsheetModelClass),
  50         NULL,                   /* base_init */
  51         NULL,                   /* base_finalize */
  52         (GClassInitFunc) psppire_spreadsheet_model_class_init,
  53         NULL,                   /* class_finalize */
  54         NULL,                   /* class_data */
  55         sizeof (PsppireSpreadsheetModel),
  56         0,
  57         (GInstanceInitFunc) psppire_spreadsheet_model_init,
  58       };
  59
  60       static const GInterfaceInfo tree_model_info = {
  61         (GInterfaceInitFunc) spreadsheet_tree_model_init,
  62         NULL,
  63         NULL
  64       };
  65
  66       object_type = g_type_register_static (G_TYPE_OBJECT,
  67                                             "PsppireSpreadsheetModel",
  68                                             &spreadsheet_model_info, 0);
  69
  70       g_type_add_interface_static (object_type, GTK_TYPE_TREE_MODEL,
  71                                    &tree_model_info);
  72     }
  73
  74   return object_type;
  75 }
  76
  77
  78 /* Properties */
  79 enum
  80 {
  81   PROP_0,
  82   PROP_SPREADSHEET
  83 };
  84
  85
  86 static void
  87 psppire_spreadsheet_model_set_property (GObject * object,
  88                                         guint prop_id,
  89                                         const GValue * value,
  90                                         GParamSpec * pspec)
  91 {
  92   PsppireSpreadsheetModel *spreadsheetModel =
  93     PSPPIRE_SPREADSHEET_MODEL (object);
  94
  95   switch (prop_id)
  96     {
  97     case PROP_SPREADSHEET:
  98       spreadsheetModel->spreadsheet = g_value_get_pointer (value);
  99       break;
 100     default:
 101       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 102       break;
 103     };
 104 }
 105
 106
 107 static void
 108 psppire_spreadsheet_model_dispose (GObject * object)
 109 {
 110 }
 111
 112 static void
 113 psppire_spreadsheet_model_finalize (GObject * object)
 114 {
 115   //  PsppireSpreadsheetModel *spreadsheetModel = PSPPIRE_SPREADSHEET_MODEL (object);
 116 }
 117
 118 static void
 119 psppire_spreadsheet_model_class_init (PsppireSpreadsheetModelClass * class)
 120 {
 121   GObjectClass *object_class;
 122
 123   GParamSpec *spreadsheet_spec = g_param_spec_pointer ("spreadsheet",
 124                                                        "Spreadsheet",
 125                                                        "The spreadsheet that this model represents",
 126                                                        G_PARAM_CONSTRUCT_ONLY
 127                                                        | G_PARAM_WRITABLE);
 128
 129   parent_class = g_type_class_peek_parent (class);
 130   object_class = (GObjectClass *) class;
 131
 132   object_class->set_property = psppire_spreadsheet_model_set_property;
 133
 134   g_object_class_install_property (object_class,
 135                                    PROP_SPREADSHEET, spreadsheet_spec);
 136
 137   object_class->finalize = psppire_spreadsheet_model_finalize;
 138   object_class->dispose = psppire_spreadsheet_model_dispose;
 139 }
 140
 141
 142 static void
 143 psppire_spreadsheet_model_init (PsppireSpreadsheetModel * spreadsheetModel)
 144 {
 145   spreadsheetModel->dispose_has_run = FALSE;
 146   spreadsheetModel->stamp = g_random_int ();
 147 }
 148
 149
 150 GtkTreeModel *
 151 psppire_spreadsheet_model_new (struct spreadsheet *sp)
 152 {
 153   return g_object_new (psppire_spreadsheet_model_get_type (),
 154                        "spreadsheet", sp, NULL);
 155 }
 156
 157
 158 \f
 159
 160 static gint
 161 tree_model_n_columns (GtkTreeModel * model)
 162 {
 163   return PSPPIRE_SPREADSHEET_MODEL_N_COLS;
 164 }
 165
 166 static GtkTreeModelFlags
 167 tree_model_get_flags (GtkTreeModel * model)
 168 {
 169   g_return_val_if_fail (PSPPIRE_IS_SPREADSHEET_MODEL (model),
 170                         (GtkTreeModelFlags) 0);
 171
 172   return GTK_TREE_MODEL_LIST_ONLY;
 173 }
 174
 175 static GType
 176 tree_model_column_type (GtkTreeModel * model, gint index)
 177 {
 178   g_return_val_if_fail (PSPPIRE_IS_SPREADSHEET_MODEL (model), (GType) 0);
 179   g_return_val_if_fail (index < PSPPIRE_SPREADSHEET_MODEL_N_COLS, (GType) 0);
 180
 181   return G_TYPE_STRING;
 182 }
 183
 184
 185 static gboolean
 186 tree_model_get_iter (GtkTreeModel * model, GtkTreeIter * iter,
 187                      GtkTreePath * path)
 188 {
 189   PsppireSpreadsheetModel *spreadsheetModel =
 190     PSPPIRE_SPREADSHEET_MODEL (model);
 191   gint *indices, depth;
 192   gint n;
 193
 194   g_return_val_if_fail (path, FALSE);
 195
 196   depth = gtk_tree_path_get_depth (path);
 197
 198   g_return_val_if_fail (depth == 1, FALSE);
 199
 200   indices = gtk_tree_path_get_indices (path);
 201
 202   n = indices[0];
 203
 204   iter->stamp = spreadsheetModel->stamp;
 205   iter->user_data = (gpointer) n;
 206
 207   return TRUE;
 208 }
 209
 210 static gboolean
 211 tree_model_iter_next (GtkTreeModel *model, GtkTreeIter *iter)
 212 {
 213   PsppireSpreadsheetModel *spreadsheetModel =
 214     PSPPIRE_SPREADSHEET_MODEL (model);
 215   g_return_val_if_fail (iter->stamp == spreadsheetModel->stamp, FALSE);
 216
 217   if (iter == NULL)
 218     return FALSE;
 219
 220   if ((gint) iter->user_data >= spreadsheetModel->spreadsheet->n_sheets - 1)
 221     {
 222       iter->user_data = NULL;
 223       iter->stamp = 0;
 224       return FALSE;
 225     }
 226
 227   iter->user_data++;
 228
 229   return TRUE;
 230 }
 231
 232
 233 static void
 234 tree_model_get_value (GtkTreeModel * model, GtkTreeIter * iter,
 235                       gint column, GValue * value)
 236 {
 237   PsppireSpreadsheetModel *spreadsheetModel =
 238     PSPPIRE_SPREADSHEET_MODEL (model);
 239   g_return_if_fail (column < PSPPIRE_SPREADSHEET_MODEL_N_COLS);
 240   g_return_if_fail (iter->stamp == spreadsheetModel->stamp);
 241
 242   g_value_init (value, G_TYPE_STRING);
 243   switch (column)
 244     {
 245     case PSPPIRE_SPREADSHEET_MODEL_COL_NAME:
 246       {
 247         const char *x =
 248           gnumeric_get_sheet_name (spreadsheetModel->spreadsheet,
 249                                    (gint) iter->user_data);
 250         g_value_set_string (value, x);
 251       }
 252       break;
 253     case PSPPIRE_SPREADSHEET_MODEL_COL_RANGE:
 254       {
 255         char *x =
 256           gnumeric_get_sheet_range (spreadsheetModel->spreadsheet,
 257                                     (gint) iter->user_data);
 258         g_value_set_string (value, x);
 259         g_free (x);
 260       }
 261       break;
 262     default:
 263       g_error ("%s:%d Invalid column in spreadsheet model",
 264                __FILE__, __LINE__);
 265       break;
 266     }
 267 }
 268
 269 static gboolean
 270 tree_model_nth_child (GtkTreeModel * model, GtkTreeIter * iter,
 271                       GtkTreeIter * parent, gint n)
 272 {
 273   PsppireSpreadsheetModel *spreadsheetModel =
 274     PSPPIRE_SPREADSHEET_MODEL (model);
 275
 276   if (parent)
 277     return FALSE;
 278
 279   if (n >= spreadsheetModel->spreadsheet->n_sheets)
 280     return FALSE;
 281
 282   iter->stamp = spreadsheetModel->stamp;
 283   iter->user_data = (gpointer) n;
 284
 285   return TRUE;
 286 }
 287
 288 static gint
 289 tree_model_n_children (GtkTreeModel * model, GtkTreeIter * iter)
 290 {
 291   PsppireSpreadsheetModel *spreadsheetModel =
 292     PSPPIRE_SPREADSHEET_MODEL (model);
 293
 294   if (iter == NULL)
 295     return spreadsheetModel->spreadsheet->n_sheets;
 296
 297   return 0;
 298 }
 299
 300 static gboolean
 301 tree_model_iter_has_child (GtkTreeModel *tree_model, GtkTreeIter *iter)
 302 {
 303   return FALSE;
 304 }
 305
 306 static GtkTreePath *
 307 tree_model_get_path (GtkTreeModel * model, GtkTreeIter * iter)
 308 {
 309   PsppireSpreadsheetModel *spreadsheetModel =
 310     PSPPIRE_SPREADSHEET_MODEL (model);
 311   GtkTreePath *path;
 312   gint index = (gint) iter->user_data;
 313
 314   g_return_val_if_fail (iter->stamp == spreadsheetModel->stamp, NULL);
 315
 316   path = gtk_tree_path_new ();
 317
 318   gtk_tree_path_append_index (path, index);
 319
 320   return path;
 321 }
 322
 323
 324 static gboolean
 325 tree_model_children (GtkTreeModel *model, GtkTreeIter *iter, GtkTreeIter *parent)
 326 {
 327   PsppireSpreadsheetModel *spreadsheetModel = PSPPIRE_SPREADSHEET_MODEL (model);
 328
 329   if (parent != NULL)
 330     return FALSE;
 331
 332   iter->stamp = spreadsheetModel->stamp;
 333   iter->user_data = 0;
 334
 335   return TRUE;
 336 }
 337
 338
 339
 340 static void
 341 spreadsheet_tree_model_init (GtkTreeModelIface * iface)
 342 {
 343   iface->get_flags = tree_model_get_flags;
 344   iface->get_n_columns = tree_model_n_columns;
 345   iface->get_column_type = tree_model_column_type;
 346   iface->get_iter = tree_model_get_iter;
 347   iface->iter_next = tree_model_iter_next;
 348   iface->get_value = tree_model_get_value;
 349
 350   iface->iter_children = tree_model_children;
 351   iface->iter_parent = NULL;
 352
 353   iface->get_path = tree_model_get_path;
 354   iface->iter_has_child = tree_model_iter_has_child;
 355   iface->iter_n_children = tree_model_n_children;
 356   iface->iter_nth_child = tree_model_nth_child;
 357 }