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-rw-r--r--widgets/e-table-sorted.c90
1 files changed, 90 insertions, 0 deletions
diff --git a/widgets/e-table-sorted.c b/widgets/e-table-sorted.c
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index 0000000000..d8c5273800
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+++ b/widgets/e-table-sorted.c
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+/*
+ * E-table-sorted.c: Implements a table that sorts another table
+ *
+ * Author:
+ * Miguel de Icaza (miguel@gnu.org)
+ *
+ * (C) 1999 Helix Code, Inc.
+ */
+#include <config.h>
+#include <stdlib.h>
+#include "e-util.h"
+#include "e-table-sorted.h"
+
+#define PARENT_TYPE E_TABLE_MODEL_TYPE
+
+static ETableModelClass *ets_parent_class;
+
+static void
+ets_destroy (GtkObject *object)
+{
+ ETableSorted *ets = E_TABLE_SORTED (object);
+
+ gtk_object_unref (GTK_OBJECT (ets->source));
+ gtk_object_unref (GTK_OBJECT (ets->header));
+ free (ets->map_table);
+
+ GTK_OBJECT_CLASS (ets_parent_class)->destroy (object);
+}
+
+static void
+ets_class_init (GtkObjectClass *klass)
+{
+ ets_parent_class = gtk_type_class (PARENT_TYPE);
+ klass->destroy = ets_destroy;
+}
+
+E_MAKE_TYPE(e_table_sorted, "ETableSorted", ETableSorted, ets_class_init, NULL, PARENT_TYPE);
+
+static ETableSorted *sort_ets;
+
+static int
+my_sort (const void *a, const void *b)
+{
+ GCompareFunc comp;
+ const int *ia = (const int *) a;
+ const int *ib = (const int *) b;
+ void *va, *vb;
+
+ va = e_table_model_value_at (sort_ets->source, sort_ets->sort_idx, *ia);
+ vb = e_table_model_value_at (sort_ets->source, sort_ets->sort_idx, *ib);
+
+ comp = sort_ets->sort_col->compare;
+
+ return (*comp) (va, vb);
+}
+
+ETableModel *
+e_table_sorted_new (ETableModel *source, ETableHeader *header, short sort_field)
+{
+ ETableSorted *ets = gtk_type_new (E_TABLE_SORTED_TYPE);
+ const int nvals = e_table_model_row_count (source);
+ unsigned int *buffer;
+ int i;
+
+ buffer = malloc (sizeof (unsigned int *) * nvals);
+ if (buffer = NULL)
+ return NULL;
+ ets->map_table = buffer;
+ ets->n_map = nvals;
+ ets->source = source;
+ ets->header = header;
+ ets->sort_col = e_table_header_get_column (header, sort_field);
+ ets->sort_idx = sort_field;
+ gtk_object_ref (GTK_OBJECT (source));
+ gtk_object_ref (GTK_OBJECT (header));
+
+ /* Init */
+ for (i = 0; i < nvals; i++)
+ ets->map_table [i] = i;
+
+ /* Sort */
+ g_assert (sort_ets == NULL);
+ sort_ets = ets;
+ qsort (ets->map_table, nvals, sizeof (unsigned int), my_sort);
+ sort_ets = NULL;
+
+ return (ETableModel *) ets;
+}
+
+