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-- Programmed by Jedidiah Barber
-- Released into the public domain
with
Interfaces.C.Strings;
package body FLTK.Widgets.Valuators.Rollers is
procedure roller_set_draw_hook
(W, D : in Storage.Integer_Address);
pragma Import (C, roller_set_draw_hook, "roller_set_draw_hook");
pragma Inline (roller_set_draw_hook);
procedure roller_set_handle_hook
(W, H : in Storage.Integer_Address);
pragma Import (C, roller_set_handle_hook, "roller_set_handle_hook");
pragma Inline (roller_set_handle_hook);
function new_fl_roller
(X, Y, W, H : in Interfaces.C.int;
Text : in Interfaces.C.char_array)
return Storage.Integer_Address;
pragma Import (C, new_fl_roller, "new_fl_roller");
pragma Inline (new_fl_roller);
procedure free_fl_roller
(D : in Storage.Integer_Address);
pragma Import (C, free_fl_roller, "free_fl_roller");
pragma Inline (free_fl_roller);
procedure fl_roller_draw
(W : in Storage.Integer_Address);
pragma Import (C, fl_roller_draw, "fl_roller_draw");
pragma Inline (fl_roller_draw);
function fl_roller_handle
(W : in Storage.Integer_Address;
E : in Interfaces.C.int)
return Interfaces.C.int;
pragma Import (C, fl_roller_handle, "fl_roller_handle");
pragma Inline (fl_roller_handle);
procedure Extra_Final
(This : in out Roller) is
begin
Extra_Final (Valuator (This));
end Extra_Final;
procedure Finalize
(This : in out Roller) is
begin
Extra_Final (This);
if This.Void_Ptr /= Null_Pointer and This.Needs_Dealloc then
free_fl_roller (This.Void_Ptr);
This.Void_Ptr := Null_Pointer;
end if;
end Finalize;
procedure Extra_Init
(This : in out Roller;
X, Y, W, H : in Integer;
Text : in String) is
begin
Extra_Init (Valuator (This), X, Y, W, H, Text);
end Extra_Init;
package body Forge is
function Create
(X, Y, W, H : in Integer;
Text : in String := "")
return Roller is
begin
return This : Roller do
This.Void_Ptr := new_fl_roller
(Interfaces.C.int (X),
Interfaces.C.int (Y),
Interfaces.C.int (W),
Interfaces.C.int (H),
Interfaces.C.To_C (Text));
Extra_Init (This, X, Y, W, H, Text);
roller_set_draw_hook (This.Void_Ptr, Storage.To_Integer (Draw_Hook'Address));
roller_set_handle_hook (This.Void_Ptr, Storage.To_Integer (Handle_Hook'Address));
end return;
end Create;
end Forge;
procedure Draw
(This : in out Roller) is
begin
fl_roller_draw (This.Void_Ptr);
end Draw;
function Handle
(This : in out Roller;
Event : in Event_Kind)
return Event_Outcome is
begin
return Event_Outcome'Val
(fl_roller_handle (This.Void_Ptr, Event_Kind'Pos (Event)));
end Handle;
end FLTK.Widgets.Valuators.Rollers;
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