1 files changed, 101 insertions, 0 deletions
diff --git a/src/fltk-widgets-groups-windows-double-cairo.ads b/src/fltk-widgets-groups-windows-double-cairo.ads
new file mode 100644
index 0000000..111f7ac
--- /dev/null
+++ b/src/fltk-widgets-groups-windows-double-cairo.ads
@@ -0,0 +1,101 @@
+
+
+--  Programmed by Jedidiah Barber
+--  Released into the public domain
+
+
+with
+
+    System;
+
+
+package FLTK.Widgets.Groups.Windows.Double.Cairo is
+
+
+    --  If FLTK has not been built with Cairo support then
+    --  this will just be a duplicate of Double_Window and the
+    --  callback set with Set_Cairo_Draw will never be triggered.
+
+    --  Building with Cairo support requires either of
+    --  1. CMake option FLTK_OPTION_CAIRO_WINDOW
+    --  2. configure -enable-cairo
+    --  when building FLTK itself.
+
+
+    type Cairo_Window is new Double_Window with private;
+
+    type Cairo_Window_Reference (Data : not null access Cairo_Window'Class) is
+        limited null record with Implicit_Dereference => Data;
+
+    type Cairo_Callback is access procedure
+           (This    : in out Cairo_Window;
+            Context : in     System.Address);
+
+
+
+
+    package Forge is
+
+        function Create
+               (X, Y, W, H : in Integer;
+                Text       : in String := "")
+            return Cairo_Window;
+
+        function Create
+               (W, H : in Integer;
+                Text : in String := "")
+            return Cairo_Window;
+
+        function Create
+               (W, H : in Integer)
+            return Cairo_Window;
+
+    end Forge;
+
+
+
+
+    procedure Set_Cairo_Draw
+           (This : in out Cairo_Window;
+            Func : in     Cairo_Callback);
+
+
+
+
+    procedure Draw
+           (This : in out Cairo_Window);
+
+    function Handle
+           (This  : in out Cairo_Window;
+            Event : in     Event_Kind)
+        return Event_Outcome;
+
+
+private
+
+
+    type Cairo_Window is new Double_Window with record
+        My_Func : Cairo_Callback;
+    end record;
+
+    overriding procedure Finalize
+           (This : in out Cairo_Window);
+
+    procedure Extra_Init
+           (This       : in out Cairo_Window;
+            X, Y, W, H : in     Integer;
+            Text       : in     String);
+
+    procedure Extra_Final
+           (This : in out Cairo_Window);
+
+
+    pragma Inline (Set_Cairo_Draw);
+
+    pragma Inline (Draw);
+    pragma Inline (Handle);
+
+
+end FLTK.Widgets.Groups.Windows.Double.Cairo;
+
+