new, treeview renderer for combo cells new, GtkCellEditable for combo

2003-09-30  Mike Kestner  <mkestner@ximian.com>

	* e-cell-renderer-combo.* : new, treeview renderer for combo cells
	* e-combo-cell-editable.* : new, GtkCellEditable for combo cells
	* Makefile.am : build the new files

svn path=/trunk/; revision=22773

1 files changed, 180 insertions, 0 deletions

diff --git a/widgets/misc/e-cell-renderer-combo.c b/widgets/misc/e-cell-renderer-combo.c
new file mode 100644
index 0000000000..8b4134fdce
--- /dev/null
+++ b/widgets/misc/e-cell-renderer-combo.c
@@ -0,0 +1,180 @@
+/*
+ * e-cell-renderer-combo.c
+ *
+ * Author:  Mike Kestner  <mkestner@ximian.com>
+ *
+ * Copyright (C) 2003 Ximian Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public 
+ * License as published by the Free Software Foundation.
+ *
+ * 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <config.h>
+#include <gtk/gtkcellrenderertext.h>
+#include <gtk/gtkarrow.h>
+#include <gtk/gtkbutton.h>
+#include <gal/util/e-util.h>
+
+#include "e-combo-cell-editable.h"
+#include "e-cell-renderer-combo.h"
+
+enum {
+	PROP_0,
+	PROP_LIST
+};
+
+struct _ECellRendererComboPriv {
+	EComboCellEditable *editable;
+	gchar *path;
+	GList *list;
+};
+
+static GtkCellRendererTextClass *parent_class;
+
+static void
+ecrc_editing_done (GtkCellEditable *editable, ECellRendererCombo *cell)
+{
+	const gchar *new_text;
+
+	if (e_combo_cell_editable_cancelled (E_COMBO_CELL_EDITABLE (editable)))
+		return;
+
+	new_text = e_combo_cell_editable_get_text (E_COMBO_CELL_EDITABLE (editable));
+                                                             
+	g_signal_emit_by_name (cell, "edited", cell->priv->path, new_text);
+	g_free (cell->priv->path);
+	cell->priv->path = NULL;
+}
+
+static GtkCellEditable *
+ecrc_start_editing (GtkCellRenderer *cell, GdkEvent *event, GtkWidget *widget, const gchar *path,
+		    GdkRectangle *bg_area, GdkRectangle *cell_area, GtkCellRendererState flags)
+{
+	ECellRendererCombo *combo_cell = E_CELL_RENDERER_COMBO (cell);
+	GtkCellRendererText *text_cell = GTK_CELL_RENDERER_TEXT (cell);
+	EComboCellEditable *editable;
+
+	if (!text_cell->editable)
+		return NULL;
+
+	editable = E_COMBO_CELL_EDITABLE (e_combo_cell_editable_new ());
+	e_combo_cell_editable_set_text (editable, text_cell->text);
+	e_combo_cell_editable_set_list (editable, combo_cell->priv->list);
+	gtk_widget_show (GTK_WIDGET (editable));
+
+	g_signal_connect (editable, "editing-done", G_CALLBACK (ecrc_editing_done), combo_cell);
+
+	combo_cell->priv->editable = g_object_ref (editable);
+	combo_cell->priv->path = g_strdup (path);
+
+	return GTK_CELL_EDITABLE (editable);
+}
+
+static void
+ecrc_get_size (GtkCellRenderer *cell, GtkWidget *widget, GdkRectangle *cell_area, 
+	       gint *x_offset, gint *y_offset, gint *width, gint *height)
+{
+	GtkWidget *btn;
+	GtkRequisition req;
+
+	if (GTK_CELL_RENDERER_CLASS (parent_class)->get_size)
+		GTK_CELL_RENDERER_CLASS (parent_class)->get_size (cell, widget, cell_area, x_offset, y_offset, width, height);
+
+	btn = gtk_button_new ();
+	gtk_container_add (GTK_CONTAINER (btn), gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_OUT));
+	gtk_widget_size_request (btn, &req);
+	*width += req.width;
+	gtk_widget_destroy (btn);
+}
+
+static void
+ecrc_get_prop (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+{
+	ECellRendererCombo *ecrc = E_CELL_RENDERER_COMBO (object);
+
+	switch (prop_id) {
+	case PROP_LIST:
+		g_value_set_pointer (value, ecrc->priv->list);
+		break;
+	default:
+		break;
+	}
+}
+
+static void
+ecrc_set_prop (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
+{
+	ECellRendererCombo *ecrc = E_CELL_RENDERER_COMBO (object);
+
+	switch (prop_id) {
+	case PROP_LIST:
+		ecrc->priv->list = g_value_get_pointer (value);
+		break;
+	default:
+		break;
+	}
+}
+
+static void
+ecrc_finalize (GObject *obj)
+{
+	ECellRendererCombo *cell = (ECellRendererCombo *) obj;
+
+	if (cell->priv->editable)
+		g_object_unref (cell->priv->editable);
+	cell->priv->editable = NULL;
+
+	if (cell->priv->path)
+		g_free (cell->priv->path);
+	cell->priv->path = NULL;
+
+	g_free (cell->priv);
+
+	if (G_OBJECT_CLASS (parent_class)->finalize)
+		G_OBJECT_CLASS (parent_class)->finalize (obj);
+}
+
+static void
+ecrc_init (ECellRendererCombo *cell)
+{
+	cell->priv = g_new0 (ECellRendererComboPriv, 1);
+}
+
+static void
+ecrc_class_init (ECellRendererComboClass *class)
+{
+	GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (class);
+	GObjectClass *obj_class = G_OBJECT_CLASS (class);
+	
+	parent_class = GTK_CELL_RENDERER_TEXT_CLASS (g_type_class_peek_parent (class));
+	
+	obj_class->get_property = ecrc_get_prop;
+	obj_class->set_property = ecrc_set_prop;
+	obj_class->finalize = ecrc_finalize;
+
+	cell_class->start_editing = ecrc_start_editing;
+	cell_class->get_size = ecrc_get_size;
+
+	g_object_class_install_property (obj_class, PROP_LIST,
+					 g_param_spec_pointer ("list", "List", "List of items to popup.", G_PARAM_READWRITE));
+}
+
+E_MAKE_TYPE (e_cell_renderer_combo, "ECellRendererCombo", ECellRendererCombo, ecrc_class_init, ecrc_init, GTK_TYPE_CELL_RENDERER_TEXT)
+
+GtkCellRenderer *
+e_cell_renderer_combo_new (void)
+{
+	return GTK_CELL_RENDERER (g_object_new (E_TYPE_CELL_RENDERER_COMBO, NULL));
+}
+