e-util/e-selection-model-simple.c

   1 /*
   2  *
   3  * This program is free software; you can redistribute it and/or modify it
   4  * under the terms of the GNU Lesser General Public License as published by
   5  * the Free Software Foundation.
   6  *
   7  * This program is distributed in the hope that it will be useful, but
   8  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   9  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  10  * for more details.
  11  *
  12  * You should have received a copy of the GNU Lesser General Public License
  13  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  14  *
  15  *
  16  * Authors:
  17  *              Chris Lahey <clahey@ximian.com>
  18  *
  19  * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
  20  *
  21  */
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include <config.h>
  25 #endif
  26
  27 #include "e-selection-model-array.h"
  28 #include "e-selection-model-simple.h"
  29
  30 static gint esms_get_row_count (ESelectionModelArray *esma);
  31
  32 G_DEFINE_TYPE (
  33         ESelectionModelSimple,
  34         e_selection_model_simple,
  35         E_TYPE_SELECTION_MODEL_ARRAY)
  36
  37 static void
  38 e_selection_model_simple_init (ESelectionModelSimple *selection)
  39 {
  40         selection->row_count = 0;
  41 }
  42
  43 static void
  44 e_selection_model_simple_class_init (ESelectionModelSimpleClass *class)
  45 {
  46         ESelectionModelArrayClass *esma_class;
  47
  48         esma_class = E_SELECTION_MODEL_ARRAY_CLASS (class);
  49         esma_class->get_row_count = esms_get_row_count;
  50 }
  51
  52 /**
  53  * e_selection_model_simple_new
  54  *
  55  * This routine creates a new #ESelectionModelSimple.
  56  *
  57  * Returns: The new #ESelectionModelSimple.
  58  */
  59 ESelectionModelSimple *
  60 e_selection_model_simple_new (void)
  61 {
  62         return g_object_new (E_TYPE_SELECTION_MODEL_SIMPLE, NULL);
  63 }
  64
  65 void
  66 e_selection_model_simple_set_row_count (ESelectionModelSimple *esms,
  67                                         gint row_count)
  68 {
  69         gboolean any_selected = FALSE;
  70
  71         if (esms->row_count != row_count) {
  72                 ESelectionModelArray *esma = E_SELECTION_MODEL_ARRAY (esms);
  73                 if (esma->eba) {
  74                         any_selected = e_bit_array_selected_count (esma->eba) > 0;
  75                         g_object_unref (esma->eba);
  76                 }
  77                 esma->eba = NULL;
  78                 esma->selected_row = -1;
  79                 esma->selected_range_end = -1;
  80         }
  81
  82         esms->row_count = row_count;
  83
  84         if (any_selected)
  85                 e_selection_model_selection_changed (E_SELECTION_MODEL (esms));
  86 }
  87
  88 static gint
  89 esms_get_row_count (ESelectionModelArray *esma)
  90 {
  91         ESelectionModelSimple *esms = E_SELECTION_MODEL_SIMPLE (esma);
  92
  93         return esms->row_count;
  94 }
  95
  96 void
  97 e_selection_model_simple_insert_rows (ESelectionModelSimple *esms,
  98                                       gint row,
  99                                       gint count)
 100 {
 101         esms->row_count += count;
 102         e_selection_model_array_insert_rows (
 103                 E_SELECTION_MODEL_ARRAY (esms), row, count);
 104 }
 105
 106 void
 107 e_selection_model_simple_delete_rows (ESelectionModelSimple *esms,
 108                                       gint row,
 109                                       gint count)
 110 {
 111         esms->row_count -= count;
 112         e_selection_model_array_delete_rows (
 113                 E_SELECTION_MODEL_ARRAY (esms), row, count);
 114 }
 115
 116 void
 117 e_selection_model_simple_move_row (ESelectionModelSimple *esms,
 118                                    gint old_row,
 119                                    gint new_row)
 120 {
 121         e_selection_model_array_move_row (
 122                 E_SELECTION_MODEL_ARRAY (esms), old_row, new_row);
 123 }