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with Interfaces.C;
with System;
use type System.Address;
package body FLTK.Widgets.Buttons is
procedure button_set_draw_hook
(W, D : in System.Address);
pragma Import (C, button_set_draw_hook, "button_set_draw_hook");
procedure fl_button_draw
(W : in System.Address);
pragma Import (C, fl_button_draw, "fl_button_draw");
function new_fl_button
(X, Y, W, H : in Interfaces.C.int;
Text : in Interfaces.C.char_array)
return System.Address;
pragma Import (C, new_fl_button, "new_fl_button");
procedure free_fl_button
(B : in System.Address);
pragma Import (C, free_fl_button, "free_fl_button");
function fl_button_get_state
(B : in System.Address)
return Interfaces.C.int;
pragma Import (C, fl_button_get_state, "fl_button_get_state");
procedure fl_button_set_state
(B : in System.Address;
S : in Interfaces.C.int);
pragma Import (C, fl_button_set_state, "fl_button_set_state");
procedure fl_button_set_only
(B : in System.Address);
pragma Import (C, fl_button_set_only, "fl_button_set_only");
procedure Draw_Hook (U : in System.Address);
pragma Convention (C, Draw_Hook);
procedure Draw_Hook
(U : in System.Address)
is
package Button_Convert is new System.Address_To_Access_Conversions (Button'Class);
Ada_Button : access Button'Class :=
Button_Convert.To_Pointer (U);
begin
Ada_Button.Draw;
end Draw_Hook;
procedure Draw
(This : in out Button) is
begin
fl_button_draw (This.Void_Ptr);
end Draw;
procedure Finalize
(This : in out Button) is
begin
if This in Button and then
This.Void_Ptr /= System.Null_Address
then
free_fl_button (This.Void_Ptr);
end if;
Finalize (Widget (This));
end Finalize;
function Create
(X, Y, W, H : in Integer;
Text : in String)
return Button is
begin
return This : Button do
This.Void_Ptr := new_fl_button
(Interfaces.C.int (X),
Interfaces.C.int (Y),
Interfaces.C.int (W),
Interfaces.C.int (H),
Interfaces.C.To_C (Text));
fl_widget_set_user_data
(This.Void_Ptr,
Widget_Convert.To_Address (This'Unchecked_Access));
button_set_draw_hook (This.Void_Ptr, Draw_Hook'Address);
end return;
end Create;
function Get_State
(This : in Button)
return State is
begin
return State'Val (fl_button_get_state (This.Void_Ptr));
end Get_State;
procedure Set_State
(This : in out Button;
St : in State) is
begin
fl_button_set_state (This.Void_Ptr, State'Pos (St));
end Set_State;
procedure Set_Only
(This : in out Button) is
begin
fl_button_set_only (This.Void_Ptr);
end Set_Only;
end FLTK.Widgets.Buttons;
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