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with
FLTK.Images;
limited with
FLTK.Widgets.Groups;
private with
System.Address_To_Access_Conversions,
Ada.Unchecked_Conversion,
Interfaces.C;
package FLTK.Widgets is
type Widget is new Wrapper with private;
type Widget_Callback is access procedure
(Item : in out Widget'Class);
function Create
(X, Y, W, H : in Integer;
Text : in String)
return Widget;
procedure Activate
(This : in out Widget);
procedure Deactivate
(This : in out Widget);
function Is_Active
(This : in Widget)
return Boolean;
function Is_Tree_Active
(This : in Widget)
return Boolean;
procedure Clear_Active
(This : in out Widget);
function Has_Changed
(This : in Widget)
return Boolean;
procedure Clear_Changed
(This : in out Widget);
function Parent
(This : in Widget)
return access FLTK.Widgets.Groups.Group'Class;
function Contains
(This : in Widget;
Item : in Widget'Class)
return Boolean;
function Get_Alignment
(This : in Widget)
return Alignment;
procedure Set_Alignment
(This : in out Widget;
New_Align : in Alignment);
function Get_Box
(This : in Widget)
return Box_Kind;
procedure Set_Box
(This : in out Widget;
Box : in Box_Kind);
function Get_Label
(This : in out Widget)
return String;
procedure Set_Label
(This : in out Widget;
Text : in String);
function Get_Label_Font
(This : in Widget)
return Font_Kind;
procedure Set_Label_Font
(This : in out Widget;
Font : in Font_Kind);
function Get_Label_Size
(This : in Widget)
return Font_Size;
procedure Set_Label_Size
(This : in out Widget;
Size : in Font_Size);
function Get_Label_Type
(This : in Widget)
return Label_Kind;
procedure Set_Label_Type
(This : in out Widget;
Label : in Label_Kind);
function Get_Callback
(This : in Widget)
return Widget_Callback;
procedure Set_Callback
(This : in out Widget;
Func : in Widget_Callback);
function Get_X
(This : in Widget)
return Integer;
function Get_Y
(This : in Widget)
return Integer;
function Get_W
(This : in Widget)
return Integer;
function Get_H
(This : in Widget)
return Integer;
procedure Resize
(This : in out Widget;
W, H : in Integer);
procedure Reposition
(This : in out Widget;
X, Y : in Integer);
function Get_Image
(This : in Widget)
return access FLTK.Images.Image'Class;
procedure Set_Image
(This : in out Widget;
Pic : in out FLTK.Images.Image'Class);
procedure Draw
(This : in out Widget) is null;
procedure Redraw
(This : in out Widget);
procedure Redraw_Label
(This : in out Widget);
function Handle
(This : in out Widget;
Event : in Event_Kind)
return Event_Outcome;
private
type Widget is new Wrapper with
record
Callback : Widget_Callback;
Current_Image : access FLTK.Images.Image'Class;
end record;
overriding procedure Finalize
(This : in out Widget);
-- the user data portion should always be a reference back to the Ada binding
procedure Callback_Hook
(W, U : in System.Address);
pragma Convention (C, Callback_Hook);
procedure Draw_Hook
(U : in System.Address);
pragma Convention (C, Draw_Hook);
function Handle_Hook
(U : in System.Address;
E : in Interfaces.C.int)
return Interfaces.C.int;
pragma Convention (C, Handle_Hook);
package Widget_Convert is new System.Address_To_Access_Conversions (Widget'Class);
package Callback_Convert is
function To_Pointer is new Ada.Unchecked_Conversion (System.Address, Widget_Callback);
function To_Address is new Ada.Unchecked_Conversion (Widget_Callback, System.Address);
end Callback_Convert;
function fl_widget_get_user_data
(W : in System.Address)
return System.Address;
pragma Import (C, fl_widget_get_user_data, "fl_widget_get_user_data");
procedure fl_widget_set_user_data
(W, D : in System.Address);
pragma Import (C, fl_widget_set_user_data, "fl_widget_set_user_data");
end FLTK.Widgets;
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