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 <gettext.h>
  22 #define _(msgid) gettext (msgid)
  23 #define N_(msgid) msgid
  24
  25
  26 #include "psppire-spreadsheet-model.h"
  27 #include "data/spreadsheet-reader.h"
  28
  29
  30 static void psppire_spreadsheet_model_init (PsppireSpreadsheetModel *
  31                                             spreadsheetModel);
  32 static void psppire_spreadsheet_model_class_init (PsppireSpreadsheetModelClass
  33                                                   * class);
  34
  35 static void psppire_spreadsheet_model_finalize (GObject * object);
  36 static void psppire_spreadsheet_model_dispose (GObject * object);
  37
  38 static GObjectClass *parent_class = NULL;
  39
  40
  41 static void spreadsheet_tree_model_init (GtkTreeModelIface * iface);
  42
  43
  44 GType
  45 psppire_spreadsheet_model_get_type (void)
  46 {
  47   static GType object_type = 0;
  48
  49   if (!object_type)
  50     {
  51       static const GTypeInfo spreadsheet_model_info = {
  52         sizeof (PsppireSpreadsheetModelClass),
  53         NULL,                   /* base_init */
  54         NULL,                   /* base_finalize */
  55         (GClassInitFunc) psppire_spreadsheet_model_class_init,
  56         NULL,                   /* class_finalize */
  57         NULL,                   /* class_data */
  58         sizeof (PsppireSpreadsheetModel),
  59         0,
  60         (GInstanceInitFunc) psppire_spreadsheet_model_init,
  61       };
  62
  63       static const GInterfaceInfo tree_model_info = {
  64         (GInterfaceInitFunc) spreadsheet_tree_model_init,
  65         NULL,
  66         NULL
  67       };
  68
  69       object_type = g_type_register_static (G_TYPE_OBJECT,
  70                                             "PsppireSpreadsheetModel",
  71                                             &spreadsheet_model_info, 0);
  72
  73       g_type_add_interface_static (object_type, GTK_TYPE_TREE_MODEL,
  74                                    &tree_model_info);
  75     }
  76
  77   return object_type;
  78 }
  79
  80
  81 /* Properties */
  82 enum
  83 {
  84   PROP_0,
  85   PROP_SPREADSHEET
  86 };
  87
  88
  89 static void
  90 psppire_spreadsheet_model_set_property (GObject * object,
  91                                         guint prop_id,
  92                                         const GValue * value,
  93                                         GParamSpec * pspec)
  94 {
  95   PsppireSpreadsheetModel *spreadsheetModel =
  96     PSPPIRE_SPREADSHEET_MODEL (object);
  97
  98   switch (prop_id)
  99     {
 100     case PROP_SPREADSHEET:
 101       spreadsheetModel->spreadsheet = g_value_get_pointer (value);
 102       break;
 103     default:
 104       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 105       break;
 106     };
 107 }
 108
 109
 110 static void
 111 psppire_spreadsheet_model_dispose (GObject * object)
 112 {
 113 }
 114
 115 static void
 116 psppire_spreadsheet_model_finalize (GObject * object)
 117 {
 118   //  PsppireSpreadsheetModel *spreadsheetModel = PSPPIRE_SPREADSHEET_MODEL (object);
 119 }
 120
 121 static void
 122 psppire_spreadsheet_model_class_init (PsppireSpreadsheetModelClass * class)
 123 {
 124   GObjectClass *object_class;
 125
 126   GParamSpec *spreadsheet_spec = g_param_spec_pointer ("spreadsheet",
 127                                                        "Spreadsheet",
 128                                                        "The spreadsheet that this model represents",
 129                                                        G_PARAM_CONSTRUCT_ONLY
 130                                                        | G_PARAM_WRITABLE);
 131
 132   parent_class = g_type_class_peek_parent (class);
 133   object_class = (GObjectClass *) class;
 134
 135   object_class->set_property = psppire_spreadsheet_model_set_property;
 136
 137   g_object_class_install_property (object_class,
 138                                    PROP_SPREADSHEET, spreadsheet_spec);
 139
 140   object_class->finalize = psppire_spreadsheet_model_finalize;
 141   object_class->dispose = psppire_spreadsheet_model_dispose;
 142 }
 143
 144
 145 static void
 146 psppire_spreadsheet_model_init (PsppireSpreadsheetModel * spreadsheetModel)
 147 {
 148   spreadsheetModel->dispose_has_run = FALSE;
 149   spreadsheetModel->stamp = g_random_int ();
 150 }
 151
 152
 153 GtkTreeModel *
 154 psppire_spreadsheet_model_new (struct spreadsheet *sp)
 155 {
 156   return g_object_new (psppire_spreadsheet_model_get_type (),
 157                        "spreadsheet", sp, NULL);
 158 }
 159
 160
 161 \f
 162
 163 static gint
 164 tree_model_n_columns (GtkTreeModel * model)
 165 {
 166   return PSPPIRE_SPREADSHEET_MODEL_N_COLS;
 167 }
 168
 169 static GtkTreeModelFlags
 170 tree_model_get_flags (GtkTreeModel * model)
 171 {
 172   g_return_val_if_fail (PSPPIRE_IS_SPREADSHEET_MODEL (model),
 173                         (GtkTreeModelFlags) 0);
 174
 175   return GTK_TREE_MODEL_LIST_ONLY;
 176 }
 177
 178 static GType
 179 tree_model_column_type (GtkTreeModel * model, gint index)
 180 {
 181   g_return_val_if_fail (PSPPIRE_IS_SPREADSHEET_MODEL (model), (GType) 0);
 182   g_return_val_if_fail (index < PSPPIRE_SPREADSHEET_MODEL_N_COLS, (GType) 0);
 183
 184   return G_TYPE_STRING;
 185 }
 186
 187
 188 static gboolean
 189 tree_model_get_iter (GtkTreeModel * model, GtkTreeIter * iter,
 190                      GtkTreePath * path)
 191 {
 192   PsppireSpreadsheetModel *spreadsheetModel =
 193     PSPPIRE_SPREADSHEET_MODEL (model);
 194   gint *indices, depth;
 195   gint n;
 196
 197   g_return_val_if_fail (path, FALSE);
 198
 199   depth = gtk_tree_path_get_depth (path);
 200
 201   g_return_val_if_fail (depth == 1, FALSE);
 202
 203   indices = gtk_tree_path_get_indices (path);
 204
 205   n = indices[0];
 206
 207   iter->stamp = spreadsheetModel->stamp;
 208   iter->user_data = (gpointer) n;
 209
 210   return TRUE;
 211 }
 212
 213 static gboolean
 214 tree_model_iter_next (GtkTreeModel *model, GtkTreeIter *iter)
 215 {
 216   PsppireSpreadsheetModel *spreadsheetModel =
 217     PSPPIRE_SPREADSHEET_MODEL (model);
 218   g_return_val_if_fail (iter->stamp == spreadsheetModel->stamp, FALSE);
 219
 220   if (iter == NULL)
 221     return FALSE;
 222
 223   if ((gint) iter->user_data >= spreadsheetModel->spreadsheet->n_sheets - 1)
 224     {
 225       iter->user_data = NULL;
 226       iter->stamp = 0;
 227       return FALSE;
 228     }
 229
 230   iter->user_data++;
 231
 232   return TRUE;
 233 }
 234
 235
 236 static void
 237 tree_model_get_value (GtkTreeModel * model, GtkTreeIter * iter,
 238                       gint column, GValue * value)
 239 {
 240   PsppireSpreadsheetModel *spreadsheetModel =
 241     PSPPIRE_SPREADSHEET_MODEL (model);
 242   g_return_if_fail (column < PSPPIRE_SPREADSHEET_MODEL_N_COLS);
 243   g_return_if_fail (iter->stamp == spreadsheetModel->stamp);
 244
 245   g_value_init (value, G_TYPE_STRING);
 246   switch (column)
 247     {
 248     case PSPPIRE_SPREADSHEET_MODEL_COL_NAME:
 249       {
 250         const char *x =
 251           spreadsheet_get_sheet_name (spreadsheetModel->spreadsheet,
 252                                    (gint) iter->user_data);
 253
 254         g_value_set_string (value, x);
 255       }
 256       break;
 257     case PSPPIRE_SPREADSHEET_MODEL_COL_RANGE:
 258       {
 259         char *x =
 260           spreadsheet_get_sheet_range (spreadsheetModel->spreadsheet,
 261                                     (gint) iter->user_data);
 262
 263         g_value_set_string (value, x ? x : _("(empty)"));
 264         g_free (x);
 265       }
 266       break;
 267     default:
 268       g_error ("%s:%d Invalid column in spreadsheet model",
 269                __FILE__, __LINE__);
 270       break;
 271     }
 272 }
 273
 274 static gboolean
 275 tree_model_nth_child (GtkTreeModel * model, GtkTreeIter * iter,
 276                       GtkTreeIter * parent, gint n)
 277 {
 278   PsppireSpreadsheetModel *spreadsheetModel =
 279     PSPPIRE_SPREADSHEET_MODEL (model);
 280
 281   if (parent)
 282     return FALSE;
 283
 284   if (n >= spreadsheetModel->spreadsheet->n_sheets)
 285     return FALSE;
 286
 287   iter->stamp = spreadsheetModel->stamp;
 288   iter->user_data = (gpointer) n;
 289
 290   return TRUE;
 291 }
 292
 293 static gint
 294 tree_model_n_children (GtkTreeModel * model, GtkTreeIter * iter)
 295 {
 296   PsppireSpreadsheetModel *spreadsheetModel =
 297     PSPPIRE_SPREADSHEET_MODEL (model);
 298
 299   if (iter == NULL)
 300     return spreadsheetModel->spreadsheet->n_sheets;
 301
 302   return 0;
 303 }
 304
 305 static gboolean
 306 tree_model_iter_has_child (GtkTreeModel *tree_model, GtkTreeIter *iter)
 307 {
 308   return FALSE;
 309 }
 310
 311 static GtkTreePath *
 312 tree_model_get_path (GtkTreeModel * model, GtkTreeIter * iter)
 313 {
 314   PsppireSpreadsheetModel *spreadsheetModel =
 315     PSPPIRE_SPREADSHEET_MODEL (model);
 316   GtkTreePath *path;
 317   gint index = (gint) iter->user_data;
 318
 319   g_return_val_if_fail (iter->stamp == spreadsheetModel->stamp, NULL);
 320
 321   path = gtk_tree_path_new ();
 322
 323   gtk_tree_path_append_index (path, index);
 324
 325   return path;
 326 }
 327
 328
 329 static gboolean
 330 tree_model_children (GtkTreeModel *model, GtkTreeIter *iter, GtkTreeIter *parent)
 331 {
 332   PsppireSpreadsheetModel *spreadsheetModel = PSPPIRE_SPREADSHEET_MODEL (model);
 333
 334   if (parent != NULL)
 335     return FALSE;
 336
 337   iter->stamp = spreadsheetModel->stamp;
 338   iter->user_data = 0;
 339
 340   return TRUE;
 341 }
 342
 343
 344
 345 static void
 346 spreadsheet_tree_model_init (GtkTreeModelIface * iface)
 347 {
 348   iface->get_flags = tree_model_get_flags;
 349   iface->get_n_columns = tree_model_n_columns;
 350   iface->get_column_type = tree_model_column_type;
 351   iface->get_iter = tree_model_get_iter;
 352   iface->iter_next = tree_model_iter_next;
 353   iface->get_value = tree_model_get_value;
 354
 355   iface->iter_children = tree_model_children;
 356   iface->iter_parent = NULL;
 357
 358   iface->get_path = tree_model_get_path;
 359   iface->iter_has_child = tree_model_iter_has_child;
 360   iface->iter_n_children = tree_model_n_children;
 361   iface->iter_nth_child = tree_model_nth_child;
 362 }