diff options
Diffstat (limited to 'src/fltk-widgets-valuators-rollers.adb')
-rw-r--r-- | src/fltk-widgets-valuators-rollers.adb | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/fltk-widgets-valuators-rollers.adb b/src/fltk-widgets-valuators-rollers.adb new file mode 100644 index 0000000..408a286 --- /dev/null +++ b/src/fltk-widgets-valuators-rollers.adb @@ -0,0 +1,109 @@ + + +with + + Interfaces.C.Strings, + System; + +use type + + System.Address; + + +package body FLTK.Widgets.Valuators.Rollers is + + + procedure roller_set_draw_hook + (W, D : in System.Address); + pragma Import (C, roller_set_draw_hook, "roller_set_draw_hook"); + + procedure roller_set_handle_hook + (W, H : in System.Address); + pragma Import (C, roller_set_handle_hook, "roller_set_handle_hook"); + + + + + function new_fl_roller + (X, Y, W, H : in Interfaces.C.int; + Text : in Interfaces.C.char_array) + return System.Address; + pragma Import (C, new_fl_roller, "new_fl_roller"); + + procedure free_fl_roller + (D : in System.Address); + pragma Import (C, free_fl_roller, "free_fl_roller"); + + + + + procedure fl_roller_draw + (W : in System.Address); + pragma Import (C, fl_roller_draw, "fl_roller_draw"); + + function fl_roller_handle + (W : in System.Address; + E : in Interfaces.C.int) + return Interfaces.C.int; + pragma Import (C, fl_roller_handle, "fl_roller_handle"); + + + + + procedure Finalize + (This : in out Roller) is + begin + if This.Void_Ptr /= System.Null_Address and then + This in Roller'Class + then + free_fl_roller (This.Void_Ptr); + This.Void_Ptr := System.Null_Address; + end if; + Finalize (Valuator (This)); + end Finalize; + + + + + 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)); + fl_widget_set_user_data + (This.Void_Ptr, + Widget_Convert.To_Address (This'Unchecked_Access)); + roller_set_draw_hook (This.Void_Ptr, Draw_Hook'Address); + roller_set_handle_hook (This.Void_Ptr, Handle_Hook'Address); + end return; + end Create; + + + + + 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; + |