Added these classes.

2001-03-20  Christopher James Lahey  <clahey@ximian.com>

	* e-table-memory-callbacks.c, e-table-memory-callbacks.h,
	e-table-memory.c, e-table-memory.h: Added these classes.

	* Makefile.am: Added e-table-memory-callbacks.c,
	e-table-memory-callbacks.h, e-table-memory.c, and
	e-table-memory.h.

svn path=/trunk/; revision=8857

1 files changed, 258 insertions, 0 deletions

diff --git a/widgets/table/e-table-memory.c b/widgets/table/e-table-memory.c
new file mode 100644
index 0000000000..87e8121294
--- /dev/null
+++ b/widgets/table/e-table-memory.c
@@ -0,0 +1,258 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/*
+ * e-table-memory.c: a Table Model implementation that the programmer builds in memory.
+ *
+ * Author:
+ *   Chris Toshok (toshok@ximian.com)
+ *   Chris Lahey <clahey@ximian.com>
+ *
+ * Adapted from the gtable code and ETableModel.
+ *
+ * (C) 2000, 2001 Ximian, Inc.
+ */
+#include <config.h>
+
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include <gnome-xml/parser.h>
+#include <gnome-xml/xmlmemory.h>
+
+#include <gtk/gtksignal.h>
+#include <stdlib.h>
+#include "gal/util/e-util.h"
+#include "gal/util/e-xml-utils.h"
+#include "e-table-memory.h"
+
+#define PARENT_TYPE E_TABLE_MODEL_TYPE
+
+static ETableModel *parent_class;
+
+struct ETableMemoryPriv {
+	gpointer *data;
+	int num_rows;
+	gint frozen;
+};
+
+
+/* virtual methods */
+
+static void
+etmm_destroy (GtkObject *object)
+{
+	ETableMemory *etmm = E_TABLE_MEMORY (object);
+	ETableMemoryPriv *priv = etmm->priv;
+
+	/* XXX lots of stuff to free here */
+
+	g_free (priv->data);
+	g_free (priv);
+
+	GTK_OBJECT_CLASS (parent_class)->destroy (object);
+}
+
+static int
+etmm_row_count (ETableModel *etm)
+{
+	ETableMemory *etmm = E_TABLE_MEMORY (etm);
+
+	return etmm->priv->num_rows;
+}
+
+
+static void
+e_table_memory_class_init (GtkObjectClass *klass)
+{
+	ETableModelClass *table_class = (ETableModelClass *) klass;
+
+	parent_class               = gtk_type_class (PARENT_TYPE);
+	
+	klass->destroy             = etmm_destroy;
+
+	table_class->row_count     = etmm_row_count;
+}
+
+static void
+e_table_memory_init (GtkObject *object)
+{
+	ETableMemory *etmm = (ETableMemory *)object;
+
+	ETableMemoryPriv *priv;
+
+	priv = g_new0 (ETableMemoryPriv, 1);
+	etmm->priv = priv;
+
+	priv->data = NULL;
+	priv->num_rows = 0;
+	priv->frozen = 0;
+}
+
+E_MAKE_TYPE(e_table_memory, "ETableMemory", ETableMemory, e_table_memory_class_init, e_table_memory_init, PARENT_TYPE)
+
+
+
+/**
+ * e_table_memory_construct:
+ * @etable: 
+ * 
+ * 
+ **/
+void
+e_table_memory_construct (ETableMemory *etmm)
+{
+}
+
+/**
+ * e_table_memory_new
+ *
+ * XXX docs here.
+ *
+ * return values: a newly constructed ETableMemory.
+ */
+ETableMemory *
+e_table_memory_new (void)
+{
+	ETableMemory *etmm;
+
+	etmm = gtk_type_new (e_table_memory_get_type ());
+
+	e_table_memory_construct(etmm);
+
+	return etmm;
+}
+
+/**
+ * e_table_memory_node_get_data:
+ * @etmm: 
+ * @node: 
+ * 
+ * 
+ * 
+ * Return value: 
+ **/
+gpointer
+e_table_memory_get_data (ETableMemory *etmm, int row)
+{
+	g_return_val_if_fail(row < 0, NULL);
+	g_return_val_if_fail(row >= etmm->priv->num_rows, NULL);
+
+	return etmm->priv->data[row];
+}
+
+/**
+ * e_table_memory_node_set_data:
+ * @etmm: 
+ * @node: 
+ * @node_data: 
+ * 
+ * 
+ **/
+void
+e_table_memory_set_data (ETableMemory *etmm, int row, gpointer node_data)
+{
+	g_return_if_fail(row < 0);
+	g_return_if_fail(row > etmm->priv->num_rows);
+
+	etmm->priv->data[row] = node_data;
+}
+
+/**
+ * e_table_memory_node_insert:
+ * @table_model: 
+ * @parent_path: 
+ * @position: 
+ * @node_data: 
+ * 
+ * 
+ * 
+ * Return value: 
+ **/
+void
+e_table_memory_node_insert (ETableMemory *etmm,
+			    int row,
+			    gpointer node_data)
+{
+	g_return_if_fail(row < 0);
+	g_return_if_fail(row > etmm->priv->num_rows);
+
+	if (!etmm->priv->frozen)
+		e_table_model_pre_change(E_TABLE_MODEL(etmm));
+	etmm->priv->data = g_renew(gpointer, etmm->priv->data, etmm->priv->num_rows + 1);
+	memmove(etmm->priv->data + row + 1, etmm->priv->data + row, (etmm->priv->num_rows - row) * sizeof (gpointer));
+	etmm->priv->data[row] = node_data;
+	etmm->priv->num_rows ++;
+	if (!etmm->priv->frozen)
+		e_table_model_row_inserted(E_TABLE_MODEL(etmm), row);
+}
+
+
+
+/**
+ * e_table_memory_node_remove:
+ * @etable: 
+ * @path: 
+ * 
+ * 
+ * 
+ * Return value: 
+ **/
+gpointer
+e_table_memory_node_remove (ETableMemory *etmm, int row)
+{
+	gpointer ret;
+
+	g_return_val_if_fail(row < 0, NULL);
+	g_return_val_if_fail(row >= etmm->priv->num_rows, NULL);
+
+	if (!etmm->priv->frozen)
+		e_table_model_pre_change(E_TABLE_MODEL(etmm));
+	ret = etmm->priv->data[row];
+	memmove(etmm->priv->data + row, etmm->priv->data + row + 1, (etmm->priv->num_rows - row - 1) * sizeof (gpointer));
+	etmm->priv->num_rows --;
+	if (!etmm->priv->frozen)
+		e_table_model_row_deleted(E_TABLE_MODEL(etmm), row);
+	return ret;
+}
+
+/**
+ * e_table_memory_freeze:
+ * @etmm: the ETableModel to freeze.
+ * 
+ * This function prepares an ETableModel for a period of much change.
+ * All signals regarding changes to the table are deferred until we
+ * thaw the table.
+ * 
+ **/
+void
+e_table_memory_freeze(ETableMemory *etmm)
+{
+	ETableMemoryPriv *priv = etmm->priv;
+
+	if (priv->frozen == 0)
+		e_table_model_pre_change(E_TABLE_MODEL(etmm));
+
+	priv->frozen ++;
+}
+
+/**
+ * e_table_memory_thaw:
+ * @etmm: the ETableMemory to thaw.
+ * 
+ * This function thaws an ETableMemory.  All the defered signals can add
+ * up to a lot, we don't know - so we just emit a model_changed
+ * signal.
+ * 
+ **/
+void
+e_table_memory_thaw(ETableMemory *etmm)
+{
+	ETableMemoryPriv *priv = etmm->priv;
+
+	if (priv->frozen > 0)
+		priv->frozen --;
+	if (priv->frozen == 0) {
+		e_table_model_changed(E_TABLE_MODEL(etmm));
+	}
+}