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private with Ada.Containers.Vectors;
private with System.Address_To_Access_Conversions;
package FLTK.Text_Buffers is
type Text_Buffer is new Wrapper with private;
type Text_Buffer_Cursor (Data : access Text_Buffer'Class) is limited null record
with Implicit_Dereference => Data;
type Position is new Natural;
type Modification is (Insert, Restyle, Delete);
type Modify_Callback is interface;
procedure Call
(This : in Modify_Callback;
Action : in Modification;
Place : in Position;
Length : in Natural;
Deleted_Text : in String) is abstract;
type Predelete_Callback is interface;
procedure Call
(This : in Predelete_Callback;
Place : in Position;
Length : in Natural) is abstract;
function Create
(Requested_Size : in Natural := 0;
Preferred_Gap_Size : in Natural := 1024)
return Text_Buffer;
procedure Add_Modify_Callback
(This : in out Text_Buffer;
Func : not null access Modify_Callback'Class);
procedure Add_Predelete_Callback
(This : in out Text_Buffer;
Func : not null access Predelete_Callback'Class);
private
type Modify_Access is access all Modify_Callback'Class;
type Predelete_Access is access all Predelete_Callback'Class;
package Modify_Vectors is new Ada.Containers.Vectors
(Index_Type => Positive,
Element_Type => Modify_Access);
package Predelete_Vectors is new Ada.Containers.Vectors
(Index_Type => Positive,
Element_Type => Predelete_Access);
type Text_Buffer is new Wrapper with
record
Modify_CBs : Modify_Vectors.Vector;
Predelete_CBs : Predelete_Vectors.Vector;
end record;
overriding procedure Finalize
(This : in out Text_Buffer);
package Text_Buffer_Convert is new System.Address_To_Access_Conversions (Text_Buffer);
end FLTK.Text_Buffers;
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