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