1 files changed, 353 insertions, 0 deletions
diff --git a/widgets/misc/e-combo-button.c b/widgets/misc/e-combo-button.c
new file mode 100644
index 0000000000..9f5a536ff2
--- /dev/null
+++ b/widgets/misc/e-combo-button.c
@@ -0,0 +1,353 @@
+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
+/* e-combo-button.c
+ *
+ * Copyright (C) 2001  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.
+ *
+ * Author: Ettore Perazzoli <ettore@ximian.com>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "e-combo-button.h"
+
+#include <gtk/gtkvseparator.h>
+#include <gtk/gtkhbox.h>
+#include <gtk/gtklabel.h>
+#include <gtk/gtkmain.h>
+#include <gtk/gtkpixmap.h>
+#include <gtk/gtksignal.h>
+
+#include <gal/util/e-util.h>
+
+
+enum {
+	ACTIVATE_DEFAULT,
+	LAST_SIGNAL
+};
+
+
+struct _EComboButtonPrivate {
+	GtkWidget *arrow_pixmap;
+	GtkWidget *hbox;
+	GtkWidget *separator;
+	GtkWidget *label_hbox;
+
+	GtkMenu *menu;
+
+	gboolean menu_popped_up;
+};
+
+
+#define SPACING 2
+
+static char *arrow_xpm[] = {
+	"11 5  2 1",
+	" 	c none",
+	".	c #000000000000",
+	" ......... ",
+	"  .......  ",
+	"   .....   ",
+	"    ...    ",
+	"     .     ",
+};
+
+
+#define PARENT_TYPE gtk_button_get_type ()
+static GtkButtonClass *parent_class = NULL;
+static guint combo_button_signals[LAST_SIGNAL] = { 0 };
+
+
+/* Callbacks for the associated menu.  */
+
+static void
+menu_detacher (GtkWidget *widget,
+	       GtkMenu *menu)
+{
+	EComboButton *combo_button;
+	EComboButtonPrivate *priv;
+
+	combo_button = E_COMBO_BUTTON (widget);
+	priv = combo_button->priv;
+
+	gtk_signal_disconnect_by_data (GTK_OBJECT (menu), combo_button);
+	priv->menu = NULL;
+}
+
+static void
+menu_deactivate_callback (GtkMenuShell *menu_shell,
+			  void *data)
+{
+	EComboButton *combo_button;
+	EComboButtonPrivate *priv;
+
+	combo_button = E_COMBO_BUTTON (data);
+	priv = combo_button->priv;
+
+	priv->menu_popped_up = FALSE;
+
+	GTK_BUTTON (combo_button)->button_down = FALSE;
+	gtk_button_leave (GTK_BUTTON (combo_button));
+	gtk_button_clicked (GTK_BUTTON (combo_button));
+}
+
+static void
+menu_position_func (GtkMenu *menu,
+		    gint *x_return,
+		    gint *y_return,
+		    void *data)
+{
+	EComboButton *combo_button;
+	GtkAllocation *allocation;
+
+	combo_button = E_COMBO_BUTTON (data);
+	allocation = & (GTK_WIDGET (combo_button)->allocation);
+
+	gdk_window_get_origin (GTK_WIDGET (combo_button)->window, x_return, y_return);
+
+	*y_return += allocation->height;
+}
+
+
+/* GtkObject methods.  */
+
+static void
+impl_destroy (GtkObject *object)
+{
+	EComboButton *combo_button;
+	EComboButtonPrivate *priv;
+
+	combo_button = E_COMBO_BUTTON (object);
+	priv = combo_button->priv;
+
+	if (priv->arrow_pixmap != NULL) {
+		gtk_widget_destroy (priv->arrow_pixmap);
+		priv->arrow_pixmap = NULL;
+	}
+
+	g_free (priv);
+
+	(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
+}
+
+
+/* GtkWidget methods.  */
+
+static void
+impl_realize (GtkWidget *widget)
+{
+	EComboButton *combo_button;
+	EComboButtonPrivate *priv;
+	GdkPixmap *arrow_gdk_pixmap;
+	GdkBitmap *arrow_gdk_mask;
+
+	combo_button = E_COMBO_BUTTON (widget);
+	priv = combo_button->priv;
+
+	(* GTK_WIDGET_CLASS (parent_class)->realize) (widget);
+
+	g_assert (priv->arrow_pixmap == NULL);
+
+	arrow_gdk_pixmap = gdk_pixmap_create_from_xpm_d (widget->window, &arrow_gdk_mask, NULL, arrow_xpm);
+	priv->arrow_pixmap = gtk_pixmap_new (arrow_gdk_pixmap, arrow_gdk_mask);
+	gtk_widget_show (priv->arrow_pixmap);
+
+	gtk_box_pack_start (GTK_BOX (priv->hbox), priv->arrow_pixmap, FALSE, TRUE, SPACING);
+
+	gdk_pixmap_unref (arrow_gdk_pixmap);
+	gdk_bitmap_unref (arrow_gdk_mask);
+}
+
+static void
+impl_unrealize (GtkWidget *widget)
+{
+	EComboButton *combo_button;
+	EComboButtonPrivate *priv;
+
+	combo_button = E_COMBO_BUTTON (widget);
+	priv = combo_button->priv;
+
+	(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
+
+	if (priv->arrow_pixmap != NULL) {
+		gtk_widget_destroy (priv->arrow_pixmap);
+		priv->arrow_pixmap = NULL;
+	}
+}
+
+static int
+impl_button_press_event (GtkWidget *widget,
+			 GdkEventButton *event)
+{
+	EComboButton *combo_button;
+	EComboButtonPrivate *priv;
+
+	combo_button = E_COMBO_BUTTON (widget);
+	priv = combo_button->priv;
+
+	if (event->type == GDK_BUTTON_PRESS && event->button == 1) {
+		GTK_BUTTON (widget)->button_down = TRUE;
+
+		if (event->x >= priv->separator->allocation.x) {
+			/* User clicked on the right side: pop up the menu.  */
+			gtk_button_pressed (GTK_BUTTON (widget));
+
+			priv->menu_popped_up = TRUE;
+			gtk_menu_popup (GTK_MENU (priv->menu), NULL, NULL,
+					menu_position_func, combo_button,
+					event->button, event->time);
+		} else {
+			/* User clicked on the left side: just behave like a
+			   normal button (i.e. not a toggle).  */
+			gtk_grab_add (widget);
+			gtk_button_pressed (GTK_BUTTON (widget));
+		}
+	}
+
+	return TRUE;
+}
+
+static int
+impl_button_release_event (GtkWidget *widget,
+			   GdkEventButton *event)
+{
+	if (event->button == 1) {
+		gtk_grab_remove (widget);
+		gtk_button_released (GTK_BUTTON (widget));
+	}
+
+	return TRUE;
+}
+
+static int
+impl_leave_notify_event (GtkWidget *widget,
+			 GdkEventCrossing *event)
+{
+	EComboButton *combo_button;
+	EComboButtonPrivate *priv;
+
+	combo_button = E_COMBO_BUTTON (widget);
+	priv = combo_button->priv;
+
+	/* This is to override the standard behavior of deactivating the button
+	   when the pointer gets out of the widget, in the case in which we
+	   have just popped up the menu.  Otherwise, the button would look as
+	   inactive when the menu is popped up.  */
+	if (! priv->menu_popped_up)
+		return (* GTK_WIDGET_CLASS (parent_class)->leave_notify_event) (widget, event);
+
+	return FALSE;
+}
+
+
+static void
+class_init (GtkObjectClass *object_class)
+{
+	GtkWidgetClass *widget_class;
+
+	parent_class = gtk_type_class (PARENT_TYPE);
+
+	object_class->destroy = impl_destroy;
+
+	widget_class = GTK_WIDGET_CLASS (object_class);
+	widget_class->realize              = impl_realize;
+	widget_class->unrealize            = impl_unrealize;
+	widget_class->button_press_event   = impl_button_press_event;
+	widget_class->button_release_event = impl_button_release_event;
+	widget_class->leave_notify_event   = impl_leave_notify_event;
+
+	combo_button_signals[ACTIVATE_DEFAULT] = 
+		gtk_signal_new ("activate_default",
+				GTK_RUN_FIRST,
+				object_class->type,
+				GTK_SIGNAL_OFFSET (EComboButtonClass, activate_default),
+				gtk_marshal_NONE__NONE,
+				GTK_TYPE_NONE, 0);
+
+	gtk_object_class_add_signals (object_class, combo_button_signals, LAST_SIGNAL);
+}
+
+static void
+init (EComboButton *combo_button)
+{
+	EComboButtonPrivate *priv;
+	GtkWidget *label;
+
+	priv = g_new (EComboButtonPrivate, 1);
+	combo_button->priv = priv;
+
+	priv->hbox = gtk_hbox_new (FALSE, SPACING);
+	gtk_container_add (GTK_CONTAINER (combo_button), priv->hbox);
+	gtk_widget_show (priv->hbox);
+
+	priv->label_hbox = gtk_hbox_new (FALSE, SPACING);
+	gtk_box_pack_start (GTK_BOX (priv->hbox), priv->label_hbox, TRUE, TRUE, 0);
+	gtk_widget_show (priv->label_hbox);
+
+	priv->separator = gtk_vseparator_new ();
+	gtk_box_pack_start (GTK_BOX (priv->hbox), priv->separator, FALSE, TRUE, SPACING);
+	gtk_widget_show (priv->separator);
+
+	label = gtk_label_new ("TEST!!!");
+	gtk_container_add (GTK_CONTAINER (priv->label_hbox), label);
+	gtk_widget_show (label);
+
+	priv->arrow_pixmap   = NULL;
+	priv->menu           = NULL;
+	priv->menu_popped_up = FALSE;
+}
+
+
+void
+e_combo_button_construct (EComboButton *combo_button,
+			  GtkMenu *menu)
+{
+	EComboButtonPrivate *priv;
+
+	g_return_if_fail (combo_button != NULL);
+	g_return_if_fail (E_IS_COMBO_BUTTON (combo_button));
+	g_return_if_fail (menu != NULL);
+	g_return_if_fail (GTK_IS_MENU (menu));
+
+	priv = combo_button->priv;
+	g_return_if_fail (priv->menu == NULL);
+
+	priv->menu = menu;
+	gtk_menu_attach_to_widget (menu, GTK_WIDGET (combo_button), menu_detacher);
+
+	gtk_signal_connect (GTK_OBJECT (menu), "deactivate",
+			    GTK_SIGNAL_FUNC (menu_deactivate_callback),
+			    combo_button);
+
+	GTK_WIDGET_UNSET_FLAGS (combo_button, GTK_CAN_FOCUS);
+}
+
+GtkWidget *
+e_combo_button_new (GtkMenu *menu)
+{
+	GtkWidget *new;
+
+	new = gtk_type_new (e_combo_button_get_type ());
+
+	e_combo_button_construct (E_COMBO_BUTTON (new), menu);
+
+	return new;
+}
+
+
+E_MAKE_TYPE (e_combo_button, "EComboButton", EComboButton, class_init, init, PARENT_TYPE)