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Diffstat (limited to 'src/fltk-widgets-inputs-outputs.adb')
-rw-r--r-- | src/fltk-widgets-inputs-outputs.adb | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/src/fltk-widgets-inputs-outputs.adb b/src/fltk-widgets-inputs-outputs.adb new file mode 100644 index 0000000..8aa7021 --- /dev/null +++ b/src/fltk-widgets-inputs-outputs.adb @@ -0,0 +1,94 @@ + + +with Interfaces.C.Strings; +with System; +use type System.Address; + + +package body FLTK.Widgets.Inputs.Outputs is + + + procedure output_set_draw_hook + (W, D : in System.Address); + pragma Import (C, output_set_draw_hook, "output_set_draw_hook"); + + procedure fl_output_draw + (W : in System.Address); + pragma Import (C, fl_output_draw, "fl_output_draw"); + + function new_fl_output + (X, Y, W, H : in Interfaces.C.int; + Text : in Interfaces.C.char_array) + return System.Address; + pragma Import (C, new_fl_output, "new_fl_output"); + + procedure free_fl_output + (F : in System.Address); + pragma Import (C, free_fl_output, "free_fl_output"); + + + + + procedure Draw_Hook (U : in System.Address); + pragma Convention (C, Draw_Hook); + + procedure Draw_Hook + (U : in System.Address) + is + package Output_Convert is new + System.Address_To_Access_Conversions (Output'Class); + + Ada_Output : access Output'Class := + Output_Convert.To_Pointer (U); + begin + Ada_Output.Draw; + end Draw_Hook; + + + + + procedure Draw + (This : in out Output) is + begin + fl_output_draw (This.Void_Ptr); + end Draw; + + + + + procedure Finalize + (This : in out Output) is + begin + if This in Output and then + This.Void_Ptr /= System.Null_Address + then + free_fl_output (This.Void_Ptr); + end if; + Finalize (Input (This)); + end Finalize; + + + + + function Create + (X, Y, W, H : in Integer; + Text : in String) + return Output is + begin + return This : Output do + This.Void_Ptr := new_fl_output + (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)); + output_set_draw_hook (This.Void_Ptr, Draw_Hook'Address); + end return; + end Create; + + +end FLTK.Widgets.Inputs.Outputs; + |