----------------------------------------------------------------------- -- GtkAda - Ada95 binding for Gtk+/Gnome -- -- -- -- Copyright (C) 1998-2000 E. Briot, J. Brobecker and A. Charlet -- -- Copyright (C) 2000-2013, AdaCore -- -- -- -- This library 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 library 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 library; if not, write to the -- -- Free Software Foundation, Inc., 59 Temple Place - Suite 330, -- -- Boston, MA 02111-1307, USA. -- -- -- -- As a special exception, if other files instantiate generics from -- -- this unit, or you link this unit with other files to produce an -- -- executable, this unit does not by itself cause the resulting -- -- executable to be covered by the GNU General Public License. This -- -- exception does not however invalidate any other reasons why the -- -- executable file might be covered by the GNU Public License. -- ----------------------------------------------------------------------- -- <description> -- This widget is a container that catches events for its child when its -- child does not have its own window (like a Gtk_Scrolled_Window or a -- Gtk_Label for instance). Some widgets in GtkAda do not have their own -- window, and thus can not directly get events from the server. The -- Gtk_Event_Box widget can be used to force its child to receive events -- anyway. -- -- For instance, this widget is used internally in a Gtk_Combo_Box so that -- the application can change the cursor when the mouse is in the popup -- window. In that case, it contains a frame, that itself contains the -- scrolled window of the popup. -- -- </description> -- <group>Layout Containers</group> pragma Warnings (Off, "*is already use-visible*");
with Glib; use Glib;
with Glib.Properties; use Glib.Properties;
with Glib.Types; use Glib.Types;
with Gtk.Bin; use Gtk.Bin;
with Gtk.Buildable; use Gtk.Buildable;
with Gtk.Widget; use Gtk.Widget;
package Gtk.Event_Box is
type Gtk_Event_Box_Record is new Gtk_Bin_Record with null record;
type Gtk_Event_Box is access all Gtk_Event_Box_Record'Class;
------------------ -- Constructors -- ------------------ procedure Gtk_New (Event_Box : out Gtk_Event_Box);
procedure Initialize (Event_Box : access Gtk_Event_Box_Record'Class);
-- Create a new box. -- The box's child can then be set using the Gtk.Container.Add function. function Get_Type return Glib.GType;
pragma Import (C, Get_Type, "gtk_event_box_get_type");
------------- -- Methods -- ------------- function Get_Above_Child
(Event_Box : access Gtk_Event_Box_Record) return Boolean;
procedure Set_Above_Child
(Event_Box : access Gtk_Event_Box_Record;
Above_Child : Boolean);
-- Set whether the event box window is positioned above the windows of its -- child, as opposed to below it. If the window is above, all events inside -- the event box will go to the event box. If the window is below, events -- in windows of child widgets will first got to that widget, and then to -- its parents. The default is to keep the window below the child. -- Since: gtk+ 2.4 -- "above_child": True if the event box window is above the windows of its -- child function Get_Visible_Window
(Event_Box : access Gtk_Event_Box_Record) return Boolean;
procedure Set_Visible_Window
(Event_Box : access Gtk_Event_Box_Record;
Visible_Window : Boolean);
-- Set whether the event box uses a visible or invisible child window. The -- default is to use visible windows. In an invisible window event box, the -- window that the event box creates is a %GDK_INPUT_ONLY window, which -- means that it is invisible and only serves to receive events. A visible -- window event box creates a visible (%GDK_INPUT_OUTPUT) window that acts -- as the parent window for all the widgets contained in the event box. You -- should generally make your event box invisible if you just want to trap -- events. Creating a visible window may cause artifacts that are visible -- to the user, especially if the user is using a theme with gradients or -- pixmaps. The main reason to create a non input-only event box is if you -- want to set the background to a different color or draw on it. -- Note: There is one unexpected issue for an invisible event box that has -- its window below the child. (See Gtk.Event_Box.Set_Above_Child.) Since -- the input-only window is not an ancestor window of any windows that -- descendent widgets of the event box create, events on these windows -- aren't propagated up by the windowing system, but only by GTK+. The -- practical effect of this is if an event isn't in the event mask for the -- descendant window (see Gtk.Widget.Add_Event), it won't be received by -- the event box. -- This problem doesn't occur for visible event boxes, because in that -- case, the event box window is actually the ancestor of the descendant -- windows, not just at the same place on the screen. -- Since: gtk+ 2.4 -- "visible_window": boolean value ---------------- -- Interfaces -- ---------------- -- This class implements several interfaces. See Glib.Types -- -- - "Buildable" package Implements_Buildable is new Glib.Types.Implements
(Gtk.Buildable.Gtk_Buildable, Gtk_Event_Box_Record, Gtk_Event_Box);
function "+"
(Widget : access Gtk_Event_Box_Record'Class)
return Gtk.Buildable.Gtk_Buildable
renames Implements_Buildable.To_Interface;
function "-"
(Interf : Gtk.Buildable.Gtk_Buildable)
return Gtk_Event_Box
renames Implements_Buildable.To_Object;
---------------- -- Properties -- ---------------- -- The following properties are defined for this widget. See -- Glib.Properties for more information on properties) -- -- Name: Above_Child_Property -- Type: Boolean -- Flags: read-write -- -- Name: Visible_Window_Property -- Type: Boolean -- Flags: read-write Above_Child_Property : constant Glib.Properties.Property_Boolean;
Visible_Window_Property : constant Glib.Properties.Property_Boolean;
private Above_Child_Property : constant Glib.Properties.Property_Boolean :=
Glib.Properties.Build ("above-child");
Visible_Window_Property : constant Glib.Properties.Property_Boolean :=
Glib.Properties.Build ("visible-window");
end Gtk.Event_Box;