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[gtranslator] Add GtrStatusComboBox borrowed from gedit.

commit 4969da41c17ad967c66eeed4415aace926c479fe
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Thu Feb 18 22:08:10 2010 +0100

    Add GtrStatusComboBox borrowed from gedit.

 src/gtr-status-combo-box.c |  418 ++++++++++++++++++++++++++++++++++++++++++++
 src/gtr-status-combo-box.h |   82 +++++++++
 2 files changed, 500 insertions(+), 0 deletions(-)
---
diff --git a/src/gtr-status-combo-box.c b/src/gtr-status-combo-box.c
new file mode 100644
index 0000000..29a6fde
--- /dev/null
+++ b/src/gtr-status-combo-box.c
@@ -0,0 +1,418 @@
+/*
+ * gtr-status-combo-box.c
+ * This file is part of gtr
+ *
+ * Copyright (C) 2008 - Jesse van den Kieboom
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 "gtr-status-combo-box.h"
+
+#define COMBO_BOX_TEXT_DATA "GtrStatusComboBoxTextData"
+
+#define GTR_STATUS_COMBO_BOX_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE((object), GTR_TYPE_STATUS_COMBO_BOX, GtrStatusComboBoxPrivate))
+
+struct _GtrStatusComboBoxPrivate
+{
+	GtkWidget *frame;
+	GtkWidget *button;
+	GtkWidget *hbox;
+	GtkWidget *label;
+	GtkWidget *item;
+	GtkWidget *arrow;
+	
+	GtkWidget *menu;
+	GtkWidget *current_item;
+};
+
+/* Signals */
+enum
+{
+	CHANGED,
+	NUM_SIGNALS
+};
+
+/* Properties */
+enum 
+{
+	PROP_0,
+	
+	PROP_LABEL
+};
+
+static guint signals[NUM_SIGNALS] = { 0 };
+
+G_DEFINE_TYPE(GtrStatusComboBox, gtr_status_combo_box, GTK_TYPE_EVENT_BOX)
+
+static void
+gtr_status_combo_box_finalize (GObject *object)
+{
+	G_OBJECT_CLASS (gtr_status_combo_box_parent_class)->finalize (object);
+}
+
+static void
+gtr_status_combo_box_get_property (GObject    *object,
+			             guint       prop_id,
+			             GValue     *value,
+			             GParamSpec *pspec)
+{
+	GtrStatusComboBox *obj = GTR_STATUS_COMBO_BOX (object);
+
+	switch (prop_id)
+	{
+		case PROP_LABEL:
+			g_value_set_string (value, gtr_status_combo_box_get_label (obj));
+			break;
+		default:
+			G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+			break;
+	}
+}
+
+static void
+gtr_status_combo_box_set_property (GObject      *object,
+			             guint         prop_id,
+			             const GValue *value,
+			             GParamSpec   *pspec)
+{
+	GtrStatusComboBox *obj = GTR_STATUS_COMBO_BOX (object);
+
+	switch (prop_id)
+	{
+		case PROP_LABEL:
+			gtr_status_combo_box_set_label (obj, g_value_get_string (value));
+			break;
+		default:
+			G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+			break;
+	}
+}
+
+static void
+gtr_status_combo_box_changed (GtrStatusComboBox *combo,
+				GtkMenuItem         *item)
+{
+	const gchar *text;
+	
+	text = g_object_get_data (G_OBJECT (item), COMBO_BOX_TEXT_DATA);
+
+	if (text != NULL)
+	{
+		gtk_label_set_markup (GTK_LABEL (combo->priv->item), text);
+		combo->priv->current_item = GTK_WIDGET (item);
+	}
+}
+
+static void
+gtr_status_combo_box_class_init (GtrStatusComboBoxClass *klass)
+{
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+	
+	object_class->finalize = gtr_status_combo_box_finalize;
+	object_class->get_property = gtr_status_combo_box_get_property;
+	object_class->set_property = gtr_status_combo_box_set_property;
+	
+	klass->changed = gtr_status_combo_box_changed;
+
+	signals[CHANGED] =
+	    g_signal_new ("changed",
+			  G_OBJECT_CLASS_TYPE (object_class),
+			  G_SIGNAL_RUN_LAST,
+			  G_STRUCT_OFFSET (GtrStatusComboBoxClass,
+					   changed), NULL, NULL,
+			  g_cclosure_marshal_VOID__OBJECT, G_TYPE_NONE, 1,
+			  GTK_TYPE_MENU_ITEM);
+			  
+	g_object_class_install_property (object_class, PROP_LABEL,
+					 g_param_spec_string ("label",
+					 		      "LABEL",
+					 		      "The label",
+					 		      NULL,
+					 		      G_PARAM_READWRITE));
+
+	/* Set up a style for the button to decrease spacing. */
+	gtk_rc_parse_string (
+		"style \"gtr-status-combo-button-style\"\n"
+		"{\n"
+		"  GtkWidget::focus-padding = 0\n"
+		"  GtkWidget::focus-line-width = 0\n"
+		"  xthickness = 0\n"
+		"  ythickness = 0\n"
+		"}\n"
+		"widget \"*.gtr-status-combo-button\" style \"gtr-status-combo-button-style\"");
+
+	g_type_class_add_private (object_class, sizeof(GtrStatusComboBoxPrivate));
+}
+
+static void
+menu_deactivate (GtkMenu             *menu,
+		 GtrStatusComboBox *combo)
+{
+	gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (combo->priv->button), FALSE);
+}
+
+static void
+menu_position_func (GtkMenu		*menu,
+	            gint		*x,
+		    gint		*y,
+		    gboolean		*push_in,
+		    GtrStatusComboBox *combo)
+{
+	GtkRequisition request;
+	
+	*push_in = FALSE;
+	
+	gtk_widget_size_request (gtk_widget_get_toplevel (GTK_WIDGET (menu)), &request);
+	
+	/* get the origin... */
+	gdk_window_get_origin (GTK_WIDGET (combo)->window, x, y);
+	
+	/* make the menu as wide as the widget */
+	if (request.width < GTK_WIDGET (combo)->allocation.width)
+	{
+		gtk_widget_set_size_request (GTK_WIDGET (menu), GTK_WIDGET (combo)->allocation.width, -1);
+	}
+	
+	/* position it above the widget */
+	*y -= request.height;
+}
+
+static void
+button_press_event (GtkWidget           *widget,
+		    GdkEventButton      *event,
+		    GtrStatusComboBox *combo)
+{
+	GtkRequisition request;
+	gint max_height;
+	
+	gtk_widget_size_request (combo->priv->menu, &request);
+
+	/* do something relative to our own height here, maybe we can do better */
+	max_height = GTK_WIDGET (combo)->allocation.height * 20;
+	
+	if (request.height > max_height)
+	{
+		gtk_widget_set_size_request (combo->priv->menu, -1, max_height);
+		gtk_widget_set_size_request (gtk_widget_get_toplevel (combo->priv->menu), -1, max_height);
+	}
+	
+	gtk_menu_popup (GTK_MENU (combo->priv->menu), 
+			NULL, 
+			NULL, 
+			(GtkMenuPositionFunc)menu_position_func, 
+			combo, 
+			event->button, 
+			event->time);
+
+	gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (combo->priv->button), TRUE);
+
+	if (combo->priv->current_item)
+	{
+		gtk_menu_shell_select_item (GTK_MENU_SHELL (combo->priv->menu), 
+					    combo->priv->current_item);
+	}
+}
+
+static void
+set_shadow_type (GtrStatusComboBox *combo)
+{
+	GtkShadowType shadow_type;
+	GtkWidget *statusbar;
+
+	/* This is a hack needed to use the shadow type of a statusbar */
+	statusbar = gtk_statusbar_new ();
+	gtk_widget_ensure_style (statusbar);
+
+	gtk_widget_style_get (statusbar, "shadow-type", &shadow_type, NULL);
+	gtk_frame_set_shadow_type (GTK_FRAME (combo->priv->frame), shadow_type);
+
+	gtk_widget_destroy (statusbar);
+}
+
+static void
+gtr_status_combo_box_init (GtrStatusComboBox *self)
+{
+	self->priv = GTR_STATUS_COMBO_BOX_GET_PRIVATE (self);
+	
+	gtk_event_box_set_visible_window (GTK_EVENT_BOX (self), TRUE);
+
+	self->priv->frame = gtk_frame_new (NULL);
+	gtk_widget_show (self->priv->frame);
+	
+	self->priv->button = gtk_toggle_button_new ();
+	gtk_widget_set_name (self->priv->button, "gtr-status-combo-button");
+	gtk_button_set_relief (GTK_BUTTON (self->priv->button), GTK_RELIEF_NONE);
+	gtk_widget_show (self->priv->button);
+
+	set_shadow_type (self);
+
+	self->priv->hbox = gtk_hbox_new (FALSE, 3);
+	gtk_widget_show (self->priv->hbox);
+	
+	gtk_container_add (GTK_CONTAINER (self), self->priv->frame);
+	gtk_container_add (GTK_CONTAINER (self->priv->frame), self->priv->button);
+	gtk_container_add (GTK_CONTAINER (self->priv->button), self->priv->hbox);
+	
+	self->priv->label = gtk_label_new ("");
+	gtk_widget_show (self->priv->label);
+	
+	gtk_label_set_single_line_mode (GTK_LABEL (self->priv->label), TRUE);
+	gtk_misc_set_alignment (GTK_MISC (self->priv->label), 0.0, 0.5);
+	
+	gtk_box_pack_start (GTK_BOX (self->priv->hbox), self->priv->label, FALSE, TRUE, 0);
+	
+	self->priv->item = gtk_label_new ("");
+	gtk_widget_show (self->priv->item);
+	
+	gtk_label_set_single_line_mode (GTK_LABEL (self->priv->item), TRUE);
+	gtk_misc_set_alignment (GTK_MISC (self->priv->item), 0, 0.5);
+	
+	gtk_box_pack_start (GTK_BOX (self->priv->hbox), self->priv->item, TRUE, TRUE, 0);
+	
+	self->priv->arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE);
+	gtk_widget_show (self->priv->arrow);
+	gtk_misc_set_alignment (GTK_MISC (self->priv->arrow), 0.5, 0.5);
+	
+	gtk_box_pack_start (GTK_BOX (self->priv->hbox), self->priv->arrow, FALSE, TRUE, 0);
+	
+	self->priv->menu = gtk_menu_new ();
+	g_object_ref_sink (self->priv->menu);
+
+	g_signal_connect (self->priv->button, 
+			  "button-press-event", 
+			  G_CALLBACK (button_press_event), 
+			  self);
+	g_signal_connect (self->priv->menu,
+			  "deactivate",
+			  G_CALLBACK (menu_deactivate),
+			  self);
+}
+
+/* public functions */
+GtkWidget *
+gtr_status_combo_box_new (const gchar *label)
+{
+	return g_object_new (GTR_TYPE_STATUS_COMBO_BOX, "label", label, NULL);
+}
+
+void
+gtr_status_combo_box_set_label (GtrStatusComboBox *combo, 
+				  const gchar         *label)
+{
+	gchar *text;
+
+	g_return_if_fail (GTR_IS_STATUS_COMBO_BOX (combo));
+	
+	text = g_strconcat ("  ", label, ": ", NULL);
+	gtk_label_set_markup (GTK_LABEL (combo->priv->label), text);
+	g_free (text);
+}
+
+const gchar *
+gtr_status_combo_box_get_label (GtrStatusComboBox *combo)
+{
+	g_return_val_if_fail (GTR_IS_STATUS_COMBO_BOX (combo), NULL);
+
+	return gtk_label_get_label (GTK_LABEL (combo->priv->label));
+}
+
+static void
+item_activated (GtkMenuItem         *item,
+		GtrStatusComboBox *combo)
+{
+	gtr_status_combo_box_set_item (combo, item);
+}
+
+void
+gtr_status_combo_box_add_item (GtrStatusComboBox *combo,
+				 GtkMenuItem         *item,
+				 const gchar         *text)
+{
+	g_return_if_fail (GTR_IS_STATUS_COMBO_BOX (combo));
+	g_return_if_fail (GTK_IS_MENU_ITEM (item));
+
+	gtk_menu_shell_append (GTK_MENU_SHELL (combo->priv->menu), GTK_WIDGET (item));
+	
+	gtr_status_combo_box_set_item_text (combo, item, text);
+	g_signal_connect (item, "activate", G_CALLBACK (item_activated), combo);
+}
+
+void
+gtr_status_combo_box_remove_item (GtrStatusComboBox *combo,
+				    GtkMenuItem         *item)
+{
+	g_return_if_fail (GTR_IS_STATUS_COMBO_BOX (combo));
+	g_return_if_fail (GTK_IS_MENU_ITEM (item));
+
+	gtk_container_remove (GTK_CONTAINER (combo->priv->menu),
+			      GTK_WIDGET (item));
+}
+
+GList *
+gtr_status_combo_box_get_items (GtrStatusComboBox *combo)
+{
+	g_return_val_if_fail (GTR_IS_STATUS_COMBO_BOX (combo), NULL);
+
+	return gtk_container_get_children (GTK_CONTAINER (combo->priv->menu));
+}
+
+const gchar *
+gtr_status_combo_box_get_item_text (GtrStatusComboBox *combo,
+				      GtkMenuItem	  *item)
+{
+	const gchar *ret = NULL;
+	
+	g_return_val_if_fail (GTR_IS_STATUS_COMBO_BOX (combo), NULL);
+	g_return_val_if_fail (GTK_IS_MENU_ITEM (item), NULL);
+	
+	ret = g_object_get_data (G_OBJECT (item), COMBO_BOX_TEXT_DATA);
+	
+	return ret;
+}
+
+void 
+gtr_status_combo_box_set_item_text (GtrStatusComboBox *combo,
+				      GtkMenuItem	  *item,
+				      const gchar         *text)
+{
+	g_return_if_fail (GTR_IS_STATUS_COMBO_BOX (combo));
+	g_return_if_fail (GTK_IS_MENU_ITEM (item));
+
+	g_object_set_data_full (G_OBJECT (item), 
+				COMBO_BOX_TEXT_DATA,
+				g_strdup (text),
+				(GDestroyNotify)g_free);
+}
+
+void
+gtr_status_combo_box_set_item (GtrStatusComboBox *combo,
+				 GtkMenuItem         *item)
+{
+	g_return_if_fail (GTR_IS_STATUS_COMBO_BOX (combo));
+	g_return_if_fail (GTK_IS_MENU_ITEM (item));
+
+	g_signal_emit (combo, signals[CHANGED], 0, item, NULL);
+}
+
+GtkLabel *
+gtr_status_combo_box_get_item_label (GtrStatusComboBox *combo)
+{
+	g_return_val_if_fail (GTR_IS_STATUS_COMBO_BOX (combo), NULL);
+	
+	return GTK_LABEL (combo->priv->item);
+}
+
diff --git a/src/gtr-status-combo-box.h b/src/gtr-status-combo-box.h
new file mode 100644
index 0000000..257866d
--- /dev/null
+++ b/src/gtr-status-combo-box.h
@@ -0,0 +1,82 @@
+/*
+ * gtr-status-combo-box.h
+ * This file is part of gtr
+ *
+ * Copyright (C) 2008 - Jesse van den Kieboom
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ */
+
+#ifndef __GTR_STATUS_COMBO_BOX_H__
+#define __GTR_STATUS_COMBO_BOX_H__
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define GTR_TYPE_STATUS_COMBO_BOX		(gtr_status_combo_box_get_type ())
+#define GTR_STATUS_COMBO_BOX(obj)		(G_TYPE_CHECK_INSTANCE_CAST ((obj), GTR_TYPE_STATUS_COMBO_BOX, GtrStatusComboBox))
+#define GTR_STATUS_COMBO_BOX_CONST(obj)	(G_TYPE_CHECK_INSTANCE_CAST ((obj), GTR_TYPE_STATUS_COMBO_BOX, GtrStatusComboBox const))
+#define GTR_STATUS_COMBO_BOX_CLASS(klass)	(G_TYPE_CHECK_CLASS_CAST ((klass), GTR_TYPE_STATUS_COMBO_BOX, GtrStatusComboBoxClass))
+#define GTR_IS_STATUS_COMBO_BOX(obj)		(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTR_TYPE_STATUS_COMBO_BOX))
+#define GTR_IS_STATUS_COMBO_BOX_CLASS(klass)	(G_TYPE_CHECK_CLASS_TYPE ((klass), GTR_TYPE_STATUS_COMBO_BOX))
+#define GTR_STATUS_COMBO_BOX_GET_CLASS(obj)	(G_TYPE_INSTANCE_GET_CLASS ((obj), GTR_TYPE_STATUS_COMBO_BOX, GtrStatusComboBoxClass))
+
+typedef struct _GtrStatusComboBox		GtrStatusComboBox;
+typedef struct _GtrStatusComboBoxClass	GtrStatusComboBoxClass;
+typedef struct _GtrStatusComboBoxPrivate	GtrStatusComboBoxPrivate;
+
+struct _GtrStatusComboBox {
+	GtkEventBox parent;
+	
+	GtrStatusComboBoxPrivate *priv;
+};
+
+struct _GtrStatusComboBoxClass {
+	GtkEventBoxClass parent_class;
+	
+	void (*changed) (GtrStatusComboBox *combo,
+			 GtkMenuItem         *item);
+};
+
+GType gtr_status_combo_box_get_type 			(void) G_GNUC_CONST;
+GtkWidget *gtr_status_combo_box_new			(const gchar 		*label);
+
+const gchar *gtr_status_combo_box_get_label 		(GtrStatusComboBox 	*combo);
+void gtr_status_combo_box_set_label 			(GtrStatusComboBox 	*combo,
+							 const gchar         	*label);
+
+void gtr_status_combo_box_add_item 			(GtrStatusComboBox 	*combo,
+							 GtkMenuItem         	*item,
+							 const gchar         	*text);
+void gtr_status_combo_box_remove_item			(GtrStatusComboBox    *combo,
+							 GtkMenuItem            *item);
+
+GList *gtr_status_combo_box_get_items			(GtrStatusComboBox    *combo);
+const gchar *gtr_status_combo_box_get_item_text 	(GtrStatusComboBox	*combo,
+							 GtkMenuItem		*item);
+void gtr_status_combo_box_set_item_text 		(GtrStatusComboBox	*combo,
+							 GtkMenuItem		*item,
+							 const gchar            *text);
+
+void gtr_status_combo_box_set_item			(GtrStatusComboBox	*combo,
+							 GtkMenuItem		*item);
+
+GtkLabel *gtr_status_combo_box_get_item_label		(GtrStatusComboBox	*combo);
+
+G_END_DECLS
+
+#endif /* __GTR_STATUS_COMBO_BOX_H__ */
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