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with Interfaces.C;
with Interfaces.C.Strings;
with System;
with System.Address_To_Access_Conversions;
with FLTK.Widgets.Groups; use FLTK.Widgets.Groups;
use type System.Address;
package body FLTK.Widgets is
package Group_Convert is new System.Address_To_Access_Conversions (Group'Class);
function fl_widget_get_box
(W : in System.Address)
return Interfaces.C.int;
pragma Import (C, fl_widget_get_box, "fl_widget_get_box");
procedure fl_widget_set_box
(W : in System.Address;
B : in Interfaces.C.int);
pragma Import (C, fl_widget_set_box, "fl_widget_set_box");
function fl_widget_get_label
(W : in System.Address)
return Interfaces.C.Strings.chars_ptr;
pragma Import (C, fl_widget_get_label, "fl_widget_get_label");
procedure fl_widget_set_label
(W : in System.Address;
T : in Interfaces.C.char_array);
pragma Import (C, fl_widget_set_label, "fl_widget_set_label");
function fl_widget_get_label_font
(W : in System.Address)
return Interfaces.C.int;
pragma Import (C, fl_widget_get_label_font, "fl_widget_get_label_font");
procedure fl_widget_set_label_font
(W : in System.Address;
F : in Interfaces.C.int);
pragma Import (C, fl_widget_set_label_font, "fl_widget_set_label_font");
function fl_widget_get_label_size
(W : in System.Address)
return Interfaces.C.int;
pragma Import (C, fl_widget_get_label_size, "fl_widget_get_label_size");
procedure fl_widget_set_label_size
(W : in System.Address;
S : in Interfaces.C.int);
pragma Import (C, fl_widget_set_label_size, "fl_widget_set_label_size");
function fl_widget_get_label_type
(W : in System.Address)
return Interfaces.C.int;
pragma Import (C, fl_widget_get_label_type, "fl_widget_get_label_type");
procedure fl_widget_set_label_type
(W : in System.Address;
L : in Interfaces.C.int);
pragma Import (C, fl_widget_set_label_type, "fl_widget_set_label_type");
function fl_widget_get_parent
(W : in System.Address)
return System.Address;
pragma Import (C, fl_widget_get_parent, "fl_widget_get_parent");
procedure fl_widget_set_callback
(W, C : in System.Address);
pragma Import (C, fl_widget_set_callback, "fl_widget_set_callback");
function Parent
(This : in Widget)
return Group_Cursor is
Parent_Ptr : System.Address;
Actual_Parent : access Group'Class;
begin
Parent_Ptr := fl_widget_get_parent (This.Void_Ptr);
if Parent_Ptr /= System.Null_Address then
Actual_Parent := Group_Convert.To_Pointer (fl_widget_get_user_data (Parent_Ptr));
end if;
return Ref : Group_Cursor (Data => Actual_Parent);
end Parent;
function Get_Box
(This : in Widget)
return Box_Kind is
begin
return Box_Kind'Val (fl_widget_get_box (This.Void_Ptr));
end Get_Box;
procedure Set_Box
(This : in out Widget;
Box : in Box_Kind) is
begin
fl_widget_set_box (This.Void_Ptr, Box_Kind'Pos (Box));
end Set_Box;
function Get_Label
(This : in out Widget)
return String is
begin
return Interfaces.C.Strings.Value (fl_widget_get_label (This.Void_Ptr));
end Get_Label;
procedure Set_Label
(This : in out Widget;
Text : in String) is
begin
fl_widget_set_label (This.Void_Ptr, Interfaces.C.To_C (Text));
end Set_Label;
function Get_Label_Font
(This : in Widget)
return Font_Kind is
begin
return Font_Kind'Val (fl_widget_get_label_font (This.Void_Ptr));
end Get_Label_Font;
procedure Set_Label_Font
(This : in out Widget;
Font : in Font_Kind) is
begin
fl_widget_set_label_font (This.Void_Ptr, Font_Kind'Pos (Font));
end Set_Label_Font;
function Get_Label_Size
(This : in Widget)
return Font_Size is
begin
return Font_Size (fl_widget_get_label_size (This.Void_Ptr));
end Get_Label_Size;
procedure Set_Label_Size
(This : in out Widget;
Size : in Font_Size) is
begin
fl_widget_set_label_size (This.Void_Ptr, Interfaces.C.int (Size));
end Set_Label_Size;
function Get_Label_Type
(This : in Widget)
return Label_Kind is
begin
return Label_Kind'Val (fl_widget_get_label_type (This.Void_Ptr));
end Get_Label_Type;
procedure Set_Label_Type
(This : in out Widget;
Label : in Label_Kind) is
begin
fl_widget_set_label_type (This.Void_Ptr, Label_Kind'Pos (Label));
end Set_Label_Type;
-- this is the part called by FLTK callbacks
-- note that the user data portion is a reference back to the Ada binding
procedure Callback_Hook (W, U : in System.Address);
pragma Convention (C, Callback_Hook);
procedure Callback_Hook
(W, U : in System.Address) is
Ada_Widget : access Widget'Class :=
Widget_Convert.To_Pointer (U);
begin
Ada_Widget.Callback.Call (Ada_Widget.all);
end Callback_Hook;
procedure Set_Callback
(This : in out Widget;
Func : not null access Widget_Callback'Class) is
begin
This.Callback := Func;
fl_widget_set_callback (This.Void_Ptr, Callback_Hook'Address);
end Set_Callback;
end FLTK.Widgets;
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