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-rw-r--r--e-util/e-table-subset-variable.c267
1 files changed, 267 insertions, 0 deletions
diff --git a/e-util/e-table-subset-variable.c b/e-util/e-table-subset-variable.c
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+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with the program; if not, see <http://www.gnu.org/licenses/>
+ *
+ *
+ * Authors:
+ * Chris Lahey <clahey@ximian.com>
+ *
+ * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "e-table-subset-variable.h"
+
+#define ETSSV_CLASS(e) (E_TABLE_SUBSET_VARIABLE_GET_CLASS (e))
+
+/* workaround for avoiding API breakage */
+#define etssv_get_type e_table_subset_variable_get_type
+G_DEFINE_TYPE (ETableSubsetVariable, etssv, E_TYPE_TABLE_SUBSET)
+
+#define INCREMENT_AMOUNT 10
+
+static void
+etssv_add (ETableSubsetVariable *etssv,
+ gint row)
+{
+ ETableModel *etm = E_TABLE_MODEL (etssv);
+ ETableSubset *etss = E_TABLE_SUBSET (etssv);
+
+ e_table_model_pre_change (etm);
+
+ if (etss->n_map + 1 > etssv->n_vals_allocated) {
+ etssv->n_vals_allocated += INCREMENT_AMOUNT;
+ etss->map_table = g_realloc (
+ etss->map_table,
+ etssv->n_vals_allocated * sizeof (gint));
+ }
+
+ etss->map_table[etss->n_map++] = row;
+
+ e_table_model_row_inserted (etm, etss->n_map - 1);
+}
+
+static void
+etssv_add_array (ETableSubsetVariable *etssv,
+ const gint *array,
+ gint count)
+{
+ ETableModel *etm = E_TABLE_MODEL (etssv);
+ ETableSubset *etss = E_TABLE_SUBSET (etssv);
+ gint i;
+
+ e_table_model_pre_change (etm);
+
+ if (etss->n_map + count > etssv->n_vals_allocated) {
+ etssv->n_vals_allocated += MAX (INCREMENT_AMOUNT, count);
+ etss->map_table = g_realloc (
+ etss->map_table,
+ etssv->n_vals_allocated * sizeof (gint));
+ }
+ for (i = 0; i < count; i++)
+ etss->map_table[etss->n_map++] = array[i];
+
+ e_table_model_changed (etm);
+}
+
+static void
+etssv_add_all (ETableSubsetVariable *etssv)
+{
+ ETableModel *etm = E_TABLE_MODEL (etssv);
+ ETableSubset *etss = E_TABLE_SUBSET (etssv);
+ gint rows;
+ gint i;
+
+ e_table_model_pre_change (etm);
+
+ rows = e_table_model_row_count (etss->source);
+ if (etss->n_map + rows > etssv->n_vals_allocated) {
+ etssv->n_vals_allocated += MAX (INCREMENT_AMOUNT, rows);
+ etss->map_table = g_realloc (
+ etss->map_table,
+ etssv->n_vals_allocated * sizeof (gint));
+ }
+ for (i = 0; i < rows; i++)
+ etss->map_table[etss->n_map++] = i;
+
+ e_table_model_changed (etm);
+}
+
+static gboolean
+etssv_remove (ETableSubsetVariable *etssv,
+ gint row)
+{
+ ETableModel *etm = E_TABLE_MODEL (etssv);
+ ETableSubset *etss = E_TABLE_SUBSET (etssv);
+ gint i;
+
+ for (i = 0; i < etss->n_map; i++) {
+ if (etss->map_table[i] == row) {
+ e_table_model_pre_change (etm);
+ memmove (
+ etss->map_table + i,
+ etss->map_table + i + 1,
+ (etss->n_map - i - 1) * sizeof (gint));
+ etss->n_map--;
+
+ e_table_model_row_deleted (etm, i);
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+static void
+etssv_class_init (ETableSubsetVariableClass *class)
+{
+ class->add = etssv_add;
+ class->add_array = etssv_add_array;
+ class->add_all = etssv_add_all;
+ class->remove = etssv_remove;
+}
+
+static void
+etssv_init (ETableSubsetVariable *etssv)
+{
+ /* nothing to do */
+}
+
+ETableModel *
+e_table_subset_variable_construct (ETableSubsetVariable *etssv,
+ ETableModel *source)
+{
+ if (e_table_subset_construct (E_TABLE_SUBSET (etssv), source, 1) == NULL)
+ return NULL;
+ E_TABLE_SUBSET (etssv)->n_map = 0;
+
+ return E_TABLE_MODEL (etssv);
+}
+
+ETableModel *
+e_table_subset_variable_new (ETableModel *source)
+{
+ ETableSubsetVariable *etssv = g_object_new (E_TYPE_TABLE_SUBSET_VARIABLE, NULL);
+
+ if (e_table_subset_variable_construct (etssv, source) == NULL) {
+ g_object_unref (etssv);
+ return NULL;
+ }
+
+ return (ETableModel *) etssv;
+}
+
+void
+e_table_subset_variable_add (ETableSubsetVariable *etssv,
+ gint row)
+{
+ g_return_if_fail (etssv != NULL);
+ g_return_if_fail (E_IS_TABLE_SUBSET_VARIABLE (etssv));
+
+ if (ETSSV_CLASS (etssv)->add)
+ ETSSV_CLASS (etssv)->add (etssv, row);
+}
+
+void
+e_table_subset_variable_add_array (ETableSubsetVariable *etssv,
+ const gint *array,
+ gint count)
+{
+ g_return_if_fail (etssv != NULL);
+ g_return_if_fail (E_IS_TABLE_SUBSET_VARIABLE (etssv));
+
+ if (ETSSV_CLASS (etssv)->add_array)
+ ETSSV_CLASS (etssv)->add_array (etssv, array, count);
+}
+
+void
+e_table_subset_variable_add_all (ETableSubsetVariable *etssv)
+{
+ g_return_if_fail (etssv != NULL);
+ g_return_if_fail (E_IS_TABLE_SUBSET_VARIABLE (etssv));
+
+ if (ETSSV_CLASS (etssv)->add_all)
+ ETSSV_CLASS (etssv)->add_all (etssv);
+}
+
+gboolean
+e_table_subset_variable_remove (ETableSubsetVariable *etssv,
+ gint row)
+{
+ g_return_val_if_fail (etssv != NULL, FALSE);
+ g_return_val_if_fail (E_IS_TABLE_SUBSET_VARIABLE (etssv), FALSE);
+
+ if (ETSSV_CLASS (etssv)->remove)
+ return ETSSV_CLASS (etssv)->remove (etssv, row);
+ else
+ return FALSE;
+}
+
+void
+e_table_subset_variable_clear (ETableSubsetVariable *etssv)
+{
+ ETableModel *etm = E_TABLE_MODEL (etssv);
+ ETableSubset *etss = E_TABLE_SUBSET (etssv);
+
+ e_table_model_pre_change (etm);
+ etss->n_map = 0;
+ g_free (etss->map_table);
+ etss->map_table = (gint *) g_new (guint, 1);
+ etssv->n_vals_allocated = 1;
+
+ e_table_model_changed (etm);
+}
+
+void
+e_table_subset_variable_increment (ETableSubsetVariable *etssv,
+ gint position,
+ gint amount)
+{
+ gint i;
+ ETableSubset *etss = E_TABLE_SUBSET (etssv);
+ for (i = 0; i < etss->n_map; i++) {
+ if (etss->map_table[i] >= position)
+ etss->map_table[i] += amount;
+ }
+}
+
+void
+e_table_subset_variable_decrement (ETableSubsetVariable *etssv,
+ gint position,
+ gint amount)
+{
+ gint i;
+ ETableSubset *etss = E_TABLE_SUBSET (etssv);
+ for (i = 0; i < etss->n_map; i++) {
+ if (etss->map_table[i] >= position)
+ etss->map_table[i] -= amount;
+ }
+}
+
+void
+e_table_subset_variable_set_allocation (ETableSubsetVariable *etssv,
+ gint total)
+{
+ ETableSubset *etss = E_TABLE_SUBSET (etssv);
+ if (total <= 0)
+ total = 1;
+ if (total > etss->n_map) {
+ etss->map_table = g_realloc (etss->map_table, total * sizeof (gint));
+ }
+}
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