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* Library General Public License for more details.
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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#ifdef HAVE_CONFIG_H
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#define XFCE_HEADING_SPACING 12
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#define XFCE_HEADING_ICON_SIZE 48
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#define XFCE_HEADING_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), XFCE_TYPE_HEADING, XfceHeadingPrivate))
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/* Property identifiers */
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static void _xfce_heading_finalize (GObject *object);
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static void _xfce_heading_get_property (GObject *object,
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static void _xfce_heading_set_property (GObject *object,
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static void _xfce_heading_realize (GtkWidget *widget);
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static void _xfce_heading_size_request (GtkWidget *widget,
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GtkRequisition *requisition);
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GtkRequisition *requisition);
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static void _xfce_heading_style_set (GtkWidget *widget,
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GtkStyle *previous_style);
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GtkStyle *previous_style);
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static gboolean _xfce_heading_expose_event (GtkWidget *widget,
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GdkEventExpose *event);
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GdkEventExpose *event);
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static AtkObject *_xfce_heading_get_accessible (GtkWidget *widget);
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static PangoLayout *_xfce_heading_make_layout (XfceHeading *heading);
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static GdkPixbuf *_xfce_heading_make_pixbuf (XfceHeading *heading);
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static GdkPixbuf *_xfce_heading_get_icon (XfceHeading *heading);
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static const gchar *_xfce_heading_get_icon_name (XfceHeading *heading);
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static const gchar *_xfce_heading_get_subtitle (XfceHeading *heading);
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static const gchar *_xfce_heading_get_title (XfceHeading *heading);
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struct _XfceHeadingPrivate
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struct _XfceHeadingClass
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GtkWidgetClass __parent__;
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GtkWidgetClass *gtkwidget_class;
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GObjectClass *gobject_class;
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/* add our private data to the class */
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g_type_class_add_private (klass, sizeof (XfceHeadingPrivate));
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gobject_class = G_OBJECT_CLASS (klass);
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gobject_class->finalize = _xfce_heading_finalize;
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gobject_class->get_property = _xfce_heading_get_property;
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gobject_class->set_property = _xfce_heading_set_property;
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gtkwidget_class = GTK_WIDGET_CLASS (klass);
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gtkwidget_class->realize = _xfce_heading_realize;
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gtkwidget_class->style_set = _xfce_heading_style_set;
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gtkwidget_class->expose_event = _xfce_heading_expose_event;
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gtkwidget_class->get_accessible = _xfce_heading_get_accessible;
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* The #GdkPixbuf to display as icon, or %NULL to use the
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* "icon-name" property.
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g_object_class_install_property (gobject_class,
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g_param_spec_object ("icon",
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| G_PARAM_STATIC_STRINGS));
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* XfceHeading:icon-name:
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* If the "icon" property value is %NULL this is the name of
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* the icon to display instead (looked up using the icon theme).
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* If this property is also %NULL or the specified icon does not
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* exist in the selected icon theme, no icon will be displayed.
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g_object_class_install_property (gobject_class,
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g_param_spec_string ("icon-name",
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| G_PARAM_STATIC_STRINGS));
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* XfceHeading:subtitle:
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* The sub title that should be displayed below the
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* title. May be %NULL or the empty string to display
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g_object_class_install_property (gobject_class,
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g_param_spec_string ("subtitle",
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| G_PARAM_STATIC_STRINGS));
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* The title text to display in the heading.
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g_object_class_install_property (gobject_class,
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g_param_spec_string ("title",
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| G_PARAM_STATIC_STRINGS));
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_xfce_heading_init (XfceHeading *heading)
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/* setup the private data */
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heading->priv = XFCE_HEADING_GET_PRIVATE (heading);
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/* setup the widget parameters */
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GTK_WIDGET_UNSET_FLAGS (heading, GTK_NO_WINDOW);
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XfceHeading *heading = XFCE_HEADING (object);
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/* release the private data */
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if (G_UNLIKELY (heading->priv->icon != NULL))
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g_object_unref (G_OBJECT (heading->priv->icon));
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if (G_UNLIKELY (heading->icon != NULL))
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g_object_unref (G_OBJECT (heading->icon));
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g_free (heading->priv->icon_name);
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g_free (heading->priv->subtitle);
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g_free (heading->priv->title);
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g_free (heading->icon_name);
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g_free (heading->subtitle);
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g_free (heading->title);
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(*G_OBJECT_CLASS (_xfce_heading_parent_class)->finalize) (object);
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_xfce_heading_get_property (GObject *object,
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XfceHeading *heading = XFCE_HEADING (object);
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g_value_set_object (value, _xfce_heading_get_icon (heading));
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g_value_set_string (value, _xfce_heading_get_icon_name (heading));
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g_value_set_string (value, _xfce_heading_get_subtitle (heading));
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g_value_set_string (value, _xfce_heading_get_title (heading));
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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_xfce_heading_set_property (GObject *object,
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XfceHeading *heading = XFCE_HEADING (object);
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_xfce_heading_set_icon (heading, g_value_get_object (value));
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_xfce_heading_set_icon_name (heading, g_value_get_string (value));
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_xfce_heading_set_subtitle (heading, g_value_get_string (value));
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_xfce_heading_set_title (heading, g_value_get_string (value));
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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_xfce_heading_realize (GtkWidget *widget)
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GdkWindowAttr attributes;
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_xfce_heading_style_set (GtkWidget *widget,
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GtkStyle *previous_style)
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GtkStyle *previous_style)
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/* check if we're already realized */
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if (GTK_WIDGET_REALIZED (widget))
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y = (widget->allocation.height - height) / 2;
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/* render the title */
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gtk_paint_layout (widget->style, widget->window, GTK_WIDGET_STATE (widget), TRUE, &event->area,
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gtk_paint_layout (widget->style, widget->window,
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GTK_WIDGET_STATE (widget), TRUE, &event->area,
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widget, "heading", (rtl ? x - width : x), y, layout);
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/* release the layout */
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/* generate the full text */
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text = g_string_sized_new (128);
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if (G_LIKELY (heading->priv->title != NULL))
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if (G_LIKELY (heading->title != NULL))
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/* add the main title */
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title_length = strlen (heading->priv->title);
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g_string_append (text, heading->priv->title);
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title_length = strlen (heading->title);
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g_string_append (text, heading->title);
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if (heading->priv->subtitle != NULL && *heading->priv->subtitle != '\0')
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if (heading->subtitle != NULL && *heading->subtitle != '\0')
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/* add an empty line between the title and the subtitle */
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if (G_LIKELY (heading->priv->title != NULL))
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if (G_LIKELY (heading->title != NULL))
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g_string_append (text, "\n");
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/* add the subtitle */
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g_string_append (text, heading->priv->subtitle);
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g_string_append (text, heading->subtitle);
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/* allocate and setup a new layout from the widget's context */
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GtkIconTheme *icon_theme;
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GdkPixbuf *pixbuf = NULL;
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GdkScreen *screen;
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if (G_UNLIKELY (heading->priv->icon != NULL))
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if (G_UNLIKELY (heading->icon != NULL))
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/* just use the specified icon */
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pixbuf = g_object_ref (G_OBJECT (heading->priv->icon));
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pixbuf = g_object_ref (G_OBJECT (heading->icon));
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else if (G_LIKELY (heading->priv->icon_name != NULL))
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else if (G_LIKELY (heading->icon_name != NULL))
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/* determine the icon theme for the current screen */
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screen = gtk_widget_get_screen (GTK_WIDGET (heading));
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icon_theme = gtk_icon_theme_get_for_screen (screen);
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/* try to load the icon from the icon theme */
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pixbuf = gtk_icon_theme_load_icon (icon_theme, heading->priv->icon_name,
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pixbuf = gtk_icon_theme_load_icon (icon_theme, heading->icon_name,
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XFCE_HEADING_ICON_SIZE,
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GTK_ICON_LOOKUP_USE_BUILTIN, NULL);
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&& (gdk_pixbuf_get_height (pixbuf) > XFCE_HEADING_ICON_SIZE
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|| gdk_pixbuf_get_width (pixbuf) > XFCE_HEADING_ICON_SIZE))
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/* this doesn't happen often, so be stupid
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* and assume icons are always squared */
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scaled = gdk_pixbuf_scale_simple (pixbuf,
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XFCE_HEADING_ICON_SIZE,
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XFCE_HEADING_ICON_SIZE,
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GDK_INTERP_BILINEAR);
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g_object_unref (pixbuf);
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/* cache the icon, this does not take theme changes in account,
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* but because of the only use in the titled dialog, this works
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* fine, since the window properties are emitted on icon changes */
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if (heading->icon == NULL
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heading->icon = g_object_ref (pixbuf);
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* Allocates a new #XfceHeading instance.
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* Return value: the newly allocated #XfceHeading.
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_xfce_heading_new (void)
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return g_object_new (XFCE_TYPE_HEADING, NULL);
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* _xfce_heading_get_icon:
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* @heading : a #XfceHeading.
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* Returns the #GdkPixbuf that was set as icon for
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* @heading or %NULL if no icon is set. The returned
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* #GdkPixbuf object is owned by @heading.
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* Return value: the icon for @heading, or %NULL.
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_xfce_heading_get_icon (XfceHeading *heading)
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g_return_val_if_fail (XFCE_IS_HEADING (heading), NULL);
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return heading->priv->icon;
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* _xfce_heading_set_icon:
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* @heading : a #XfceHeading.
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* @icon : the new icon or %NULL.
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_xfce_heading_set_icon (XfceHeading *heading,
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g_return_if_fail (XFCE_IS_HEADING (heading));
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g_return_if_fail (icon == NULL || GDK_IS_PIXBUF (icon));
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_libxfce4ui_return_if_fail (XFCE_IS_HEADING (heading));
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_libxfce4ui_return_if_fail (icon == NULL || GDK_IS_PIXBUF (icon));
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/* check if we have a new icon */
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if (G_LIKELY (heading->priv->icon != icon))
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if (G_LIKELY (heading->icon != icon))
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/* disconnect from the previous icon */
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if (G_LIKELY (heading->priv->icon != NULL))
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g_object_unref (G_OBJECT (heading->priv->icon));
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/* activate the new icon */
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heading->priv->icon = icon;
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/* connect to the new icon */
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if (G_LIKELY (icon != NULL))
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g_object_ref (G_OBJECT (icon));
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/* schedule a resize */
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if (G_LIKELY (heading->icon != NULL))
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g_object_unref (G_OBJECT (heading->icon));
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if (gdk_pixbuf_get_height (icon) > XFCE_HEADING_ICON_SIZE
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|| gdk_pixbuf_get_width (icon) > XFCE_HEADING_ICON_SIZE)
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/* this doesn't happen often, so be stupid
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* and assume icons are always squared */
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heading->icon = gdk_pixbuf_scale_simple (icon,
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XFCE_HEADING_ICON_SIZE,
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XFCE_HEADING_ICON_SIZE,
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GDK_INTERP_BILINEAR);
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heading->icon = g_object_ref (icon);
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heading->icon = NULL;
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gtk_widget_queue_resize (GTK_WIDGET (heading));
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/* notify listeners */
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g_object_notify (G_OBJECT (heading), "icon");
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* _xfce_heading_get_icon_name:
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* @heading : a #XfceHeading.
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* Returns the icon name previously set by a call to
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* _xfce_heading_set_icon_name() or %NULL if no icon name
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* is set for @heading.
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* Return value: the icon name for @heading, or %NULL.
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_xfce_heading_get_icon_name (XfceHeading *heading)
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g_return_val_if_fail (XFCE_IS_HEADING (heading), NULL);
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return heading->priv->icon_name;
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* _xfce_heading_set_icon_name:
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* @heading : a #XfceHeading.
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* @icon_name : the new icon name, or %NULL.
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_xfce_heading_set_icon_name (XfceHeading *heading,
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const gchar *icon_name)
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g_return_if_fail (XFCE_IS_HEADING (heading));
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/* release the previous icon name */
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g_free (heading->priv->icon_name);
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_libxfce4ui_return_if_fail (XFCE_IS_HEADING (heading));
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/* activate the new icon name */
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heading->priv->icon_name = g_strdup (icon_name);
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g_free (heading->icon_name);
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heading->icon_name = g_strdup (icon_name);
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/* schedule a resize */
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gtk_widget_queue_resize (GTK_WIDGET (heading));
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/* notify listeners */
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g_object_notify (G_OBJECT (heading), "icon-name");
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* _xfce_heading_get_subtitle:
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* @heading : a #XfceHeading.
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* Returns the sub title displayed below the
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* main title of the @heading, or %NULL if
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* no subtitle is set.
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* Return value: the subtitle of @heading, or %NULL.
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_xfce_heading_get_subtitle (XfceHeading *heading)
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g_return_val_if_fail (XFCE_IS_HEADING (heading), NULL);
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return heading->priv->subtitle;
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_xfce_heading_set_subtitle (XfceHeading *heading,
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const gchar *subtitle)
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g_return_if_fail (XFCE_IS_HEADING (heading));
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g_return_if_fail (subtitle == NULL || g_utf8_validate (subtitle, -1, NULL));
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/* release the previous subtitle */
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g_free (heading->priv->subtitle);
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_libxfce4ui_return_if_fail (XFCE_IS_HEADING (heading));
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_libxfce4ui_return_if_fail (subtitle == NULL || g_utf8_validate (subtitle, -1, NULL));
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/* activate the new subtitle */
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heading->priv->subtitle = g_strdup (subtitle);
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g_free (heading->subtitle);
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heading->subtitle = g_strdup (subtitle);
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/* schedule a resize */
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gtk_widget_queue_resize (GTK_WIDGET (heading));
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/* notify listeners */
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g_object_notify (G_OBJECT (heading), "subtitle");
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* _xfce_heading_get_title:
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* @heading : a #XfceHeading.
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* Returns the title displayed by the @heading.
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* Return value: the title displayed by the @heading.
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_xfce_heading_get_title (XfceHeading *heading)
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g_return_val_if_fail (XFCE_IS_HEADING (heading), NULL);
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return heading->priv->title;
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_xfce_heading_set_title (XfceHeading *heading,
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const gchar *title)
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g_return_if_fail (XFCE_IS_HEADING (heading));
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g_return_if_fail (title == NULL || g_utf8_validate (title, -1, NULL));
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/* release the previous title */
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g_free (heading->priv->title);
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_libxfce4ui_return_if_fail (XFCE_IS_HEADING (heading));
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_libxfce4ui_return_if_fail (title == NULL || g_utf8_validate (title, -1, NULL));
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/* activate the new title */
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heading->priv->title = g_strdup (title);
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g_free (heading->title);
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heading->title = g_strdup (title);
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/* schedule a resize */
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gtk_widget_queue_resize (GTK_WIDGET (heading));
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/* notify listeners */
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g_object_notify (G_OBJECT (heading), "title");
added
removed
libxfce4ui/xfce-heading.c
