From 9dcf299b63268278b0a9a27ed2dc600f19e458b2 Mon Sep 17 00:00:00 2001 From: Jed Barber Date: Wed, 10 May 2017 17:45:59 +1000 Subject: Output widgets added --- src/c_fl_output.cpp | 57 ++++++++++++++++++++++ src/c_fl_output.h | 19 ++++++++ src/fltk-widgets-inputs-outputs.adb | 94 +++++++++++++++++++++++++++++++++++++ src/fltk-widgets-inputs-outputs.ads | 30 ++++++++++++ 4 files changed, 200 insertions(+) create mode 100644 src/c_fl_output.cpp create mode 100644 src/c_fl_output.h create mode 100644 src/fltk-widgets-inputs-outputs.adb create mode 100644 src/fltk-widgets-inputs-outputs.ads (limited to 'src') diff --git a/src/c_fl_output.cpp b/src/c_fl_output.cpp new file mode 100644 index 0000000..de2ad49 --- /dev/null +++ b/src/c_fl_output.cpp @@ -0,0 +1,57 @@ + + +#include +#include "c_fl_output.h" + + +typedef void (hook)(void*); +typedef hook* hook_p; + + + + +class My_Output : public Fl_Output { + public: + using Fl_Output::Fl_Output; + friend void output_set_draw_hook(OUTPUTT n, void * d); + friend void fl_output_draw(OUTPUTT n); + protected: + void draw(); + void real_draw(); + hook_p draw_hook; +}; + + +void My_Output::draw() { + (*draw_hook)(this->user_data()); +} + + +void My_Output::real_draw() { + Fl_Output::draw(); +} + + +void output_set_draw_hook(OUTPUTT n, void * d) { + reinterpret_cast(n)->draw_hook = reinterpret_cast(d); +} + + +void fl_output_draw(OUTPUTT n) { + reinterpret_cast(n)->real_draw(); +} + + + + +OUTPUTT new_fl_output(int x, int y, int w, int h, char* label) { + My_Output *i = new My_Output(x, y, w, h, label); + return i; +} + + +void free_fl_output(OUTPUTT i) { + delete reinterpret_cast(i); +} + + diff --git a/src/c_fl_output.h b/src/c_fl_output.h new file mode 100644 index 0000000..da88cb1 --- /dev/null +++ b/src/c_fl_output.h @@ -0,0 +1,19 @@ + + +#ifndef FL_OUTPUT_GUARD +#define FL_OUTPUT_GUARD + + +// using just "OUTPUT" doesn't compile for some reason +typedef void* OUTPUTT; + + +extern "C" void output_set_draw_hook(OUTPUTT n, void * d); +extern "C" void fl_output_draw(OUTPUTT n); + +extern "C" OUTPUTT new_fl_output(int x, int y, int w, int h, char* label); +extern "C" void free_fl_output(OUTPUTT i); + + +#endif + 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; + diff --git a/src/fltk-widgets-inputs-outputs.ads b/src/fltk-widgets-inputs-outputs.ads new file mode 100644 index 0000000..84c4a1f --- /dev/null +++ b/src/fltk-widgets-inputs-outputs.ads @@ -0,0 +1,30 @@ + + +package FLTK.Widgets.Inputs.Outputs is + + + type Output is new Input with private; + + + function Create + (X, Y, W, H : in Integer; + Text : in String) + return Output; + + + procedure Draw + (This : in out Output); + + +private + + + type Output is new Input with null record; + + + overriding procedure Finalize + (This : in out Output); + + +end FLTK.Widgets.Inputs.Outputs; + -- cgit