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
 161 enum
 162 {
 163   COL_SHEET_NAME,
 164   COL_SHEET_RANGE,
 165   N_COLS
 166 };
 167
 168 static gint
 169 tree_model_n_columns (GtkTreeModel * model)
 170 {
 171   return N_COLS;
 172 }
 173
 174 static GtkTreeModelFlags
 175 tree_model_get_flags (GtkTreeModel * model)
 176 {
 177   g_return_val_if_fail (PSPPIRE_IS_SPREADSHEET_MODEL (model),
 178                         (GtkTreeModelFlags) 0);
 179
 180   return GTK_TREE_MODEL_LIST_ONLY;
 181 }
 182
 183 static GType
 184 tree_model_column_type (GtkTreeModel * model, gint index)
 185 {
 186   g_return_val_if_fail (PSPPIRE_IS_SPREADSHEET_MODEL (model), (GType) 0);
 187   g_return_val_if_fail (index < N_COLS, (GType) 0);
 188
 189   return G_TYPE_STRING;
 190 }
 191
 192
 193 static gboolean
 194 tree_model_get_iter (GtkTreeModel * model, GtkTreeIter * iter,
 195                      GtkTreePath * path)
 196 {
 197   PsppireSpreadsheetModel *spreadsheetModel =
 198     PSPPIRE_SPREADSHEET_MODEL (model);
 199   gint *indices, depth;
 200   gint n;
 201
 202   g_return_val_if_fail (path, FALSE);
 203
 204   depth = gtk_tree_path_get_depth (path);
 205
 206   g_return_val_if_fail (depth == 1, FALSE);
 207
 208   indices = gtk_tree_path_get_indices (path);
 209
 210   n = indices[0];
 211
 212   iter->stamp = spreadsheetModel->stamp;
 213   iter->user_data = (gpointer) n;
 214
 215   return TRUE;
 216 }
 217
 218 static gboolean
 219 tree_model_iter_next (GtkTreeModel *model, GtkTreeIter *iter)
 220 {
 221   PsppireSpreadsheetModel *spreadsheetModel =
 222     PSPPIRE_SPREADSHEET_MODEL (model);
 223   g_return_val_if_fail (iter->stamp == spreadsheetModel->stamp, FALSE);
 224
 225   if (iter == NULL)
 226     return FALSE;
 227
 228   if ((gint) iter->user_data >= spreadsheetModel->spreadsheet->sheets - 1)
 229     {
 230       iter->user_data = NULL;
 231       iter->stamp = 0;
 232       return FALSE;
 233     }
 234
 235   iter->user_data++;
 236
 237   return TRUE;
 238 }
 239
 240
 241 static void
 242 tree_model_get_value (GtkTreeModel * model, GtkTreeIter * iter,
 243                       gint column, GValue * value)
 244 {
 245   PsppireSpreadsheetModel *spreadsheetModel =
 246     PSPPIRE_SPREADSHEET_MODEL (model);
 247   g_return_if_fail (column < N_COLS);
 248   g_return_if_fail (iter->stamp == spreadsheetModel->stamp);
 249
 250   g_value_init (value, G_TYPE_STRING);
 251   switch (column)
 252     {
 253     case COL_SHEET_NAME:
 254       {
 255         const char *x =
 256           gnumeric_get_sheet_name (spreadsheetModel->spreadsheet,
 257                                    (gint) iter->user_data);
 258         g_value_set_string (value, x);
 259       }
 260       break;
 261     case COL_SHEET_RANGE:
 262       {
 263         char *x =
 264           gnumeric_get_sheet_range (spreadsheetModel->spreadsheet,
 265                                     (gint) iter->user_data);
 266         g_value_set_string (value, x);
 267         free (x);
 268       }
 269       break;
 270     default:
 271       g_error ("%s:%d Invalid column in spreadsheet model",
 272                __FILE__, __LINE__);
 273       break;
 274     }
 275 }
 276
 277 static gboolean
 278 tree_model_nth_child (GtkTreeModel * model, GtkTreeIter * iter,
 279                       GtkTreeIter * parent, gint n)
 280 {
 281   PsppireSpreadsheetModel *spreadsheetModel =
 282     PSPPIRE_SPREADSHEET_MODEL (model);
 283
 284   if (parent)
 285     return FALSE;
 286
 287   if (n >= spreadsheetModel->spreadsheet->sheets)
 288     return FALSE;
 289
 290   iter->stamp = spreadsheetModel->stamp;
 291   iter->user_data = (gpointer) n;
 292
 293   return TRUE;
 294 }
 295
 296 static gint
 297 tree_model_n_children (GtkTreeModel * model, GtkTreeIter * iter)
 298 {
 299   PsppireSpreadsheetModel *spreadsheetModel =
 300     PSPPIRE_SPREADSHEET_MODEL (model);
 301
 302   if (iter == NULL)
 303     return spreadsheetModel->spreadsheet->sheets;
 304
 305   return 0;
 306 }
 307
 308 static gboolean
 309 tree_model_iter_has_child (GtkTreeModel *tree_model, GtkTreeIter *iter)
 310 {
 311   return FALSE;
 312 }
 313
 314 static GtkTreePath *
 315 tree_model_get_path (GtkTreeModel * model, GtkTreeIter * iter)
 316 {
 317   PsppireSpreadsheetModel *spreadsheetModel =
 318     PSPPIRE_SPREADSHEET_MODEL (model);
 319   GtkTreePath *path;
 320   gint index = (gint) iter->user_data;
 321
 322   g_return_val_if_fail (iter->stamp == spreadsheetModel->stamp, NULL);
 323
 324   path = gtk_tree_path_new ();
 325
 326   gtk_tree_path_append_index (path, index);
 327
 328   return path;
 329 }
 330
 331
 332 static gboolean
 333 tree_model_children (GtkTreeModel *model, GtkTreeIter *iter, GtkTreeIter *parent)
 334 {
 335   PsppireSpreadsheetModel *spreadsheetModel = PSPPIRE_SPREADSHEET_MODEL (model);
 336
 337   if (parent != NULL)
 338     return FALSE;
 339
 340   iter->stamp = spreadsheetModel->stamp;
 341   iter->user_data = 0;
 342
 343   return TRUE;
 344 }
 345
 346
 347
 348 static void
 349 spreadsheet_tree_model_init (GtkTreeModelIface * iface)
 350 {
 351   iface->get_flags = tree_model_get_flags;
 352   iface->get_n_columns = tree_model_n_columns;
 353   iface->get_column_type = tree_model_column_type;
 354   iface->get_iter = tree_model_get_iter;
 355   iface->iter_next = tree_model_iter_next;
 356   iface->get_value = tree_model_get_value;
 357
 358   iface->iter_children = tree_model_children;
 359   iface->iter_parent = NULL;
 360
 361   iface->get_path = tree_model_get_path;
 362   iface->iter_has_child = tree_model_iter_has_child;
 363   iface->iter_n_children = tree_model_n_children;
 364   iface->iter_nth_child = tree_model_nth_child;
 365 }