GTK+设置控件背景图片

void update_widget_bg(GtkWidget *widget, const gchar *img_file)  

{          

GtkStyle *style;        

GdkPixbuf *pixbuf;          

GdkPixmap *pixmap;        

gint width, height;       

   

pixbuf = gdk_pixbuf_new_from_file(img_file, NULL);       

width = gdk_pixbuf_get_width(pixbuf);      

height = gdk_pixbuf_get_height(pixbuf);       

pixmap = gdk_pixmap_new(NULL, width, height, 24);      

gdk_pixbuf_render_pixmap_and_mask(pixbuf, &pixmap, NULL, 0);  

style = gtk_style_copy(GTK_WIDGET (widget)->style);       

   

if (style->bg_pixmap[GTK_STATE_NORMAL])           

    g_object_unref(style->bg_pixmap[GTK_STATE_NORMAL]);       

   

style->bg_pixmap[GTK_STATE_NORMAL] = g_object_ref(pixmap);       

style->bg_pixmap[GTK_STATE_ACTIVE] = g_object_ref(pixmap);  

style->bg_pixmap[GTK_STATE_PRELIGHT] = g_object_ref(pixmap);  

style->bg_pixmap[GTK_STATE_SELECTED] = g_object_ref(pixmap);  

style->bg_pixmap[GTK_STATE_INSENSITIVE] = g_object_ref(pixmap);  

gtk_widget_set_style(GTK_WIDGET (widget), style);  

g_object_unref(style);  

  

}