mu/mug/mug-query-bar.c

/* mug-query-bar.c */

/* insert (c)/licensing information) */

#include "mug-query-bar.h"
/* include other impl specific header files */

/* 'private'/'protected' functions */
static void mug_query_bar_class_init (MugQueryBarClass *klass);
static void mug_query_bar_init       (MugQueryBar *obj);
static void mug_query_bar_finalize   (GObject *obj);

/* list my signals  */
enum {
	MUG_QUERY_CHANGED,
	LAST_SIGNAL
};

typedef struct _MugQueryBarPrivate MugQueryBarPrivate;
struct _MugQueryBarPrivate {
	GtkWidget *_entry;
};
#define MUG_QUERY_BAR_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
                                           MUG_TYPE_QUERY_BAR, \
                                           MugQueryBarPrivate))
/* globals */
static GtkContainerClass *parent_class = NULL;

static guint signals[LAST_SIGNAL] = {0};

GType
mug_query_bar_get_type (void)
{
	static GType my_type = 0;
	if (!my_type) {
		static const GTypeInfo my_info = {
			sizeof(MugQueryBarClass),
			NULL,		/* base init */
			NULL,		/* base finalize */
			(GClassInitFunc) mug_query_bar_class_init,
			NULL,		/* class finalize */
			NULL,		/* class data */
			sizeof(MugQueryBar),
			0,		/* n_preallocs, ignored since 2.10 */
			(GInstanceInitFunc) mug_query_bar_init,
			NULL
		};
		my_type = g_type_register_static (GTK_TYPE_HBOX,
		                                  "MugQueryBar",
		                                  &my_info, 0);
	}
	return my_type;
}

static void
mug_query_bar_class_init (MugQueryBarClass *klass)
{
	GObjectClass *gobject_class;
	gobject_class = (GObjectClass*) klass;

	parent_class            = g_type_class_peek_parent (klass);
	gobject_class->finalize = mug_query_bar_finalize;

	g_type_class_add_private (gobject_class, sizeof(MugQueryBarPrivate));

	/* signal definitions go here, e.g.: */
	signals[MUG_QUERY_CHANGED] =
		g_signal_new ("query_changed",
			      G_TYPE_FROM_CLASS(gobject_class),
			      G_SIGNAL_RUN_FIRST,
			      G_STRUCT_OFFSET(MugQueryBarClass, query_changed),
			      NULL, NULL,
			      g_cclosure_marshal_VOID__STRING,
			      G_TYPE_NONE, 1, G_TYPE_STRING);
}


static void
on_entry_activated (GtkEntry *w, MugQueryBar *bar)
{	
 	MugQueryBarPrivate *priv;

	priv = MUG_QUERY_BAR_GET_PRIVATE(bar);

	g_signal_emit (G_OBJECT(bar), signals[MUG_QUERY_CHANGED], 0,
		       gtk_entry_get_text(w));	
}

static void
mug_query_bar_init (MugQueryBar *obj)
{
 	MugQueryBarPrivate *priv;

	priv = MUG_QUERY_BAR_GET_PRIVATE(obj);

	priv->_entry = gtk_entry_new ();
 	/* gtk_entry_set_max_length (GTK_ENTRY(priv->_entry), 32); */

	g_signal_connect (priv->_entry, "activate", G_CALLBACK(on_entry_activated),
			  obj);
	
	gtk_box_pack_start (GTK_BOX(obj), priv->_entry, TRUE, TRUE, 0);
}

static void
mug_query_bar_finalize (GObject *obj)
{
/* 	free/unref instance resources here */
	G_OBJECT_CLASS(parent_class)->finalize (obj);
}

GtkWidget*
mug_query_bar_new (void)
{
	return GTK_WIDGET(g_object_new(MUG_TYPE_QUERY_BAR, NULL));
}



void
mug_query_bar_grab_focus (MugQueryBar *self)
{
	g_return_if_fail (MUG_IS_QUERY_BAR(self));

	gtk_widget_grab_focus
		(GTK_WIDGET(MUG_QUERY_BAR_GET_PRIVATE(self)->_entry));
}