Added e-sorter.lo and e-selection-model.lo.

2001-02-27  Christopher James Lahey  <clahey@ximian.com>

	* gal/Makefile.am: Added e-sorter.lo and e-selection-model.lo.

	* gal/util/Makefile.am: Added e-sorter.c and e-sorter.h.

	* gal/util/e-sorter.c, gal/util/e-sorter.h: New class.  This is a
	new simple virtual class for use with ESelectionModel.  It
	implements the same set of methods as ETableSorter but the default
	behavior is as if the sorting was a no-op.

	* gal/widgets/Makefile.am: Added e-selection-model.c and
	e-selection-model.h.

	* gal/widgets/e-selection-model.c,
	gal/widgets/e-selection-model.h: New class.  Implements all of the
	semantics of ETableSelectionModel except for the connection to the
	ETableModel.

svn path=/trunk/; revision=8421

2 files changed, 201 insertions, 0 deletions

diff --git a/e-util/e-sorter.c b/e-util/e-sorter.c
new file mode 100644
index 0000000000..b6e0c000fc
--- /dev/null
+++ b/e-util/e-sorter.c
@@ -0,0 +1,142 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/*
+ * E-sorted.c: Virtual sorter class
+ *
+ * Author:
+ *   Chris Lahey <clahey@ximian.com>
+ *
+ * (C) 2000,2001 Ximian, Inc.
+ */
+#include <config.h>
+#include <stdlib.h>
+#include <gtk/gtksignal.h>
+#include <string.h>
+#include "gal/util/e-util.h"
+#include "e-sorter.h"
+
+#define d(x)
+
+#define PARENT_TYPE gtk_object_get_type()
+
+static GtkObjectClass *parent_class;
+
+#define ES_CLASS(es) ((ESorterClass *)((GtkObject *)(es))->klass)
+
+static gint es_model_to_sorted (ESorter *es, int row);
+static gint es_sorted_to_model (ESorter *es, int row);
+static void es_get_model_to_sorted_array (ESorter *es, int **array, int *count);
+static void es_get_sorted_to_model_array (ESorter *es, int **array, int *count);
+static gboolean es_needs_sorting(ESorter *es);
+
+static void
+es_class_init (ESorterClass *klass)
+{
+	parent_class                     = gtk_type_class (PARENT_TYPE);
+
+	klass->model_to_sorted           = es_model_to_sorted;
+	klass->sorted_to_model           = es_sorted_to_model;
+	klass->get_model_to_sorted_array = es_get_model_to_sorted_array;
+	klass->get_sorted_to_model_array = es_get_sorted_to_model_array;
+	klass->needs_sorting             = es_needs_sorting;
+}
+
+static void
+es_init (ESorter *es)
+{
+}
+
+E_MAKE_TYPE(e_sorter, "ESorter", ESorter, es_class_init, es_init, PARENT_TYPE);
+
+ESorter *
+e_sorter_new (void)
+{
+	ESorter *es = gtk_type_new (E_SORTER_TYPE);
+	
+	return es;
+}
+
+
+static gint
+es_model_to_sorted (ESorter *es, int row)
+{
+	return row;
+}
+
+static gint
+es_sorted_to_model (ESorter *es, int row)
+{
+	return row;
+}
+
+
+static void
+es_get_model_to_sorted_array (ESorter *es, int **array, int *count)
+{
+}
+
+static void
+es_get_sorted_to_model_array (ESorter *es, int **array, int *count)
+{
+}
+
+
+static gboolean
+es_needs_sorting(ESorter *es)
+{
+	return FALSE;
+}
+
+gint
+e_sorter_model_to_sorted (ESorter *es, int row)
+{
+	g_return_val_if_fail(es != NULL, -1);
+	g_return_val_if_fail(row >= 0, -1);
+
+	if (ES_CLASS(es)->model_to_sorted)
+		return ES_CLASS(es)->model_to_sorted (es, row);
+	else
+		return -1;
+}
+
+gint
+e_sorter_sorted_to_model (ESorter *es, int row)
+{
+	g_return_val_if_fail(es != NULL, -1);
+	g_return_val_if_fail(row >= 0, -1);
+
+	if (ES_CLASS(es)->sorted_to_model)
+		return ES_CLASS(es)->sorted_to_model (es, row);
+	else
+		return -1;
+}
+
+
+void
+e_sorter_get_model_to_sorted_array (ESorter *es, int **array, int *count)
+{
+	g_return_if_fail(es != NULL);
+
+	if (ES_CLASS(es)->get_model_to_sorted_array)
+		ES_CLASS(es)->get_model_to_sorted_array (es, array, count);
+}
+
+void
+e_sorter_get_sorted_to_model_array (ESorter *es, int **array, int *count)
+{
+	g_return_if_fail(es != NULL);
+
+	if (ES_CLASS(es)->get_sorted_to_model_array)
+		ES_CLASS(es)->get_sorted_to_model_array (es, array, count);
+}
+
+
+gboolean
+e_sorter_needs_sorting(ESorter *es)
+{
+	g_return_val_if_fail (es != NULL, FALSE);
+
+	if (ES_CLASS(es)->needs_sorting)
+		return ES_CLASS(es)->needs_sorting (es);
+	else
+		return FALSE;
+}
diff --git a/e-util/e-sorter.h b/e-util/e-sorter.h
new file mode 100644
index 0000000000..fa6c5bbc60
--- /dev/null
+++ b/e-util/e-sorter.h
@@ -0,0 +1,59 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+#ifndef _E_SORTER_H_
+#define _E_SORTER_H_
+
+#include <gtk/gtkobject.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+#define E_SORTER_TYPE        (e_sorter_get_type ())
+#define E_SORTER(o)          (GTK_CHECK_CAST ((o), E_SORTER_TYPE, ESorter))
+#define E_SORTER_CLASS(k)    (GTK_CHECK_CLASS_CAST((k), E_SORTER_TYPE, ESorterClass))
+#define E_IS_SORTER(o)       (GTK_CHECK_TYPE ((o), E_SORTER_TYPE))
+#define E_IS_SORTER_CLASS(k) (GTK_CHECK_CLASS_TYPE ((k), E_SORTER_TYPE))
+
+typedef struct {
+	GtkObject base;
+} ESorter;
+
+typedef struct {
+	GtkObjectClass parent_class;
+	gint      (*model_to_sorted)            (ESorter    *sorter,
+						 int         row);
+	gint      (*sorted_to_model)            (ESorter    *sorter,
+						 int         row);
+	  
+	void      (*get_model_to_sorted_array)  (ESorter    *sorter,
+						 int       **array,
+						 int        *count);
+	void      (*get_sorted_to_model_array)  (ESorter    *sorter,
+						 int       **array,
+						 int        *count);
+	  
+	gboolean  (*needs_sorting)              (ESorter    *sorter);
+} ESorterClass;
+
+GtkType   e_sorter_get_type                   (void);
+ESorter  *e_sorter_new                        (void);
+
+gint      e_sorter_model_to_sorted            (ESorter  *sorter,
+					       int       row);
+gint      e_sorter_sorted_to_model            (ESorter  *sorter,
+					       int       row);
+
+void      e_sorter_get_model_to_sorted_array  (ESorter  *sorter,
+					       int     **array,
+					       int      *count);
+void      e_sorter_get_sorted_to_model_array  (ESorter  *sorter,
+					       int     **array,
+					       int      *count);
+
+gboolean  e_sorter_needs_sorting              (ESorter  *sorter);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* _E_SORTER_H_ */