/usr/share/ada/adainclude/gtkada/gdk-dnd.ads is in libgtkada2.24.1-dev 2.24.1-2.
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-- GtkAda - Ada95 binding for Gtk+/Gnome --
-- --
-- Copyright (C) 2001-2005 --
-- 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. --
-- --
-----------------------------------------------------------------------
-- <group>Gdk, the low-level API</group>
with Glib; use Glib;
with Gdk.Types; use Gdk.Types;
with Gdk.Window;
with Gtk;
with Gtk.Selection; use Gtk.Selection;
package Gdk.Dnd is
-----------------
-- Drag_Action --
-----------------
type Drag_Action is mod 2 ** 32;
-- Possible actions for a drop onto a widget, during a drag-and-drop.
-- The drag widgets (ie the ones from which the user can start a
-- drag-and-drop operation) should set a mask, indicating which actions
-- it wants to do. The first action in the list below has the highest
-- priority, the last one the lowest. The actual action chosen for the
-- drag-and-drop will be the highest-priority one that is also accepted
-- by the drop site.
--
-- Note that in the case where the drag source supports multiple actions,
-- the user can select the one he wants. As explained above, the default
-- one is the highest priority one. But if the user pressed Shift at the
-- same time, Action_Move will be used if present. Ctrl-Shift selects
-- an Action_Link, and Ctrl selects an Action_Copy.
Action_Any : constant Drag_Action;
-- Any of the default action is accepted.
Action_Default : constant Drag_Action;
-- ???
Action_Copy : constant Drag_Action;
-- Copy the data to the drop site.
Action_Move : constant Drag_Action;
-- Copy the data to the drop site, and delete it from the drag source.
-- The delete command is invoked automatically by GtkAda.
Action_Link : constant Drag_Action;
-- Allow the drop site to access the data, without copying it.
Action_Private : constant Drag_Action;
-- Any action you want to implement. No automatic behavior is provided
-- by GtkAda.
Action_Ask : constant Drag_Action;
-- ???
-------------------
-- Drag_Protocol --
-------------------
type Drag_Protocol is
(Drag_Proto_Motif,
Drag_Proto_Xdnd,
Drag_Proto_Rootwin,
Drag_Proto_None,
Drag_Proto_Win32_Dropfiles,
Drag_Proto_Ole2,
Drag_Proto_Local);
-- The various dnd protocols recognized by a window.
-- Note that not every window recognizes every protocol, and you should
-- be careful as to which one you use. The function Gdk.Drag_Get_Protocol
-- returns which one is recognized by a window.
------------------
-- Drag_Context --
------------------
type Drag_Context is new Gdk.C_Proxy;
-- Structure that holds information about a drag in progress.
-- This is used on both source and destination sides.
------------------
-- Drag_Context --
------------------
function Get_Actions (Context : Drag_Context) return Drag_Action;
-- Return the possible actions associated with the context.
-- This is the list of actions defined by the source of the drag-and-drop
-- operation, in Source_Set.
-- (for instance, if Source_Set was used with Action_Copy + Action_Move,
-- the result will be exactly this sum, whatever was used for Dest_Set).
function Get_Suggested_Action (Context : Drag_Context) return Drag_Action;
-- Return the suggested action for that context.
-- This is the highest priority action that was set by the source of the
-- drag-and-drop, ie the one it would rather use. The action that is
-- actually used is the one returned by Get_Action, and depends on the
-- mask set by the target.
function Get_Action (Context : Drag_Context) return Drag_Action;
-- Return the action selected for the drag-and-drop operation.
-- This is the highest priority action common between the drag site and the
-- drop widget (for instance, if Source_Set was used with Action_Copy +
-- Action_Move and Dest_Set was used with only Action_Move, this will
-- be Action_Move).
type Gdk_Atom_Array is array (Natural range <>) of Gdk.Types.Gdk_Atom;
function Get_Targets (Context : Drag_Context) return Gdk_Atom_Array;
-- Return the list of targets supported by this context.
procedure Drag_Context_Ref (Context : Drag_Context);
procedure Drag_Context_Unref (Context : Drag_Context);
procedure Drag_Status
(Context : Drag_Context;
Action : Drag_Action;
Time : Guint32);
procedure Drop_Reply
(Context : Drag_Context;
Ok : Boolean;
Time : Guint32);
procedure Drop_Finish
(Context : Drag_Context;
Success : Boolean;
Time : Guint32);
-- Clean up from the drag, and display snapback, if necessary.
function Drag_Get_Selection (Context : Drag_Context) return Gdk_Atom;
function Drag_Begin
(Window : Gdk.Window.Gdk_Window;
Targets : Target_List) return Drag_Context;
function Drag_Get_Protocol
(Xid : Guint32;
Protocol : Drag_Protocol) return Guint32;
-- Return which drag protocol is recognized by a given low level window.
procedure Drag_Find_Window
(Context : Drag_Context;
Drag_Window : Gdk.Window.Gdk_Window;
X_Root : Gint;
Y_Root : Gint;
Dest_Window : Gdk.Window.Gdk_Window;
Protocol : Drag_Protocol);
function Drag_Motion
(Context : Drag_Context;
Dest_Window : Gdk.Window.Gdk_Window;
Protocol : Drag_Protocol;
X_Root : Gint;
Y_Root : Gint;
Suggested_Action : Drag_Action;
Possible_Actions : Drag_Action;
Time : Guint32) return Boolean;
procedure Drag_Drop (Context : Drag_Context; Time : Guint32);
procedure Drag_Abort (Context : Drag_Context; Time : Guint32);
private
pragma Import (C, Get_Actions, "ada_gtk_dnd_context_get_actions");
pragma Import
(C, Get_Suggested_Action,
"ada_gtk_dnd_context_get_suggested_action");
pragma Import (C, Get_Action, "ada_gtk_dnd_context_get_action");
Action_Default : constant Drag_Action := 2 ** 0;
Action_Copy : constant Drag_Action := 2 ** 1;
Action_Move : constant Drag_Action := 2 ** 2;
Action_Link : constant Drag_Action := 2 ** 3;
Action_Private : constant Drag_Action := 2 ** 4;
Action_Ask : constant Drag_Action := 2 ** 5;
Action_Any : constant Drag_Action := 2 ** 8 - 1;
end Gdk.Dnd;
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