From e93b9bbc02e2791f3a35b6f077fcbb8514c28aed Mon Sep 17 00:00:00 2001
From: Jedidiah Barber <contact@jedbarber.id.au>
Date: Sun, 12 Jan 2025 01:14:58 +1300
Subject: Refactored draw/handle methods in Widgets hierarchy, improved docs,
 added a few minor method bindings here and there

---
 src/c_fl_overlay_window.cpp | 87 ++++++++++++++++++++-------------------------
 1 file changed, 39 insertions(+), 48 deletions(-)

(limited to 'src/c_fl_overlay_window.cpp')

diff --git a/src/c_fl_overlay_window.cpp b/src/c_fl_overlay_window.cpp
index be924dc..3ce76a4 100644
--- a/src/c_fl_overlay_window.cpp
+++ b/src/c_fl_overlay_window.cpp
@@ -6,75 +6,54 @@
 
 #include <FL/Fl_Overlay_Window.H>
 #include "c_fl_overlay_window.h"
-#include "c_fl_type.h"
 
 
 
 
-class My_Overlay_Window : public Fl_Overlay_Window {
-    public:
-        using Fl_Overlay_Window::Fl_Overlay_Window;
-        friend void overlay_window_set_draw_hook(OVERLAYWINDOW w, void * d);
-        friend void fl_overlay_window_draw(OVERLAYWINDOW w);
-        friend void overlay_window_set_draw_overlay_hook(OVERLAYWINDOW w, void * d);
-        friend void overlay_window_set_handle_hook(OVERLAYWINDOW w, void * h);
-        friend int fl_overlay_window_handle(OVERLAYWINDOW w, int e);
-        friend OVERLAYWINDOW new_fl_overlay_window(int x, int y, int w, int h, char *label);
-        friend OVERLAYWINDOW new_fl_overlay_window2(int w, int h, char *label);
-    protected:
-        void draw();
-        void real_draw();
-        void draw_overlay();
-        int handle(int e);
-        int real_handle(int e);
-        d_hook_p draw_hook;
-        d_hook_p draw_overlay_hook;
-        h_hook_p handle_hook;
-};
+//  Exports from Ada
 
-void My_Overlay_Window::draw() {
-    (*draw_hook)(this->user_data());
-}
+extern "C" void widget_draw_hook(void * ud);
+extern "C" int widget_handle_hook(void * ud, int e);
 
-void My_Overlay_Window::real_draw() {
-    Fl_Overlay_Window::draw();
-}
+extern "C" void overlay_window_draw_overlay_hook(void * ud);
 
-void My_Overlay_Window::draw_overlay() {
-    (*draw_overlay_hook)(this->user_data());
-}
 
-int My_Overlay_Window::handle(int e) {
-    return (*handle_hook)(this->user_data(), e);
-}
 
-int My_Overlay_Window::real_handle(int e) {
-    return Fl_Overlay_Window::handle(e);
-}
 
-void overlay_window_set_draw_hook(OVERLAYWINDOW w, void * d) {
-    reinterpret_cast<My_Overlay_Window*>(w)->draw_hook = reinterpret_cast<d_hook_p>(d);
-}
+//  Attaching all relevant hooks and friends
 
-void fl_overlay_window_draw(OVERLAYWINDOW w) {
-    reinterpret_cast<My_Overlay_Window*>(w)->real_draw();
-}
+class My_Overlay_Window : public Fl_Overlay_Window {
+public:
+    using Fl_Overlay_Window::Fl_Overlay_Window;
+
+    friend OVERLAYWINDOW new_fl_overlay_window(int x, int y, int w, int h, char *label);
+    friend OVERLAYWINDOW new_fl_overlay_window2(int w, int h, char *label);
+
+    friend void fl_overlay_window_draw(OVERLAYWINDOW w);
+    friend int fl_overlay_window_handle(OVERLAYWINDOW w, int e);
 
-void overlay_window_set_draw_overlay_hook(OVERLAYWINDOW w, void * d) {
-    reinterpret_cast<My_Overlay_Window*>(w)->draw_overlay_hook = reinterpret_cast<d_hook_p>(d);
+    void draw();
+    void draw_overlay();
+    int handle(int e);
+};
+
+void My_Overlay_Window::draw() {
+    widget_draw_hook(this->user_data());
 }
 
-void overlay_window_set_handle_hook(OVERLAYWINDOW w, void * h) {
-    reinterpret_cast<My_Overlay_Window*>(w)->handle_hook = reinterpret_cast<h_hook_p>(h);
+void My_Overlay_Window::draw_overlay() {
+    overlay_window_draw_overlay_hook(this->user_data());
 }
 
-int fl_overlay_window_handle(OVERLAYWINDOW w, int e) {
-    return reinterpret_cast<My_Overlay_Window*>(w)->real_handle(e);
+int My_Overlay_Window::handle(int e) {
+    return widget_handle_hook(this->user_data(), e);
 }
 
 
 
 
+//  Flattened C API
+
 OVERLAYWINDOW new_fl_overlay_window(int x, int y, int w, int h, char *label) {
     My_Overlay_Window *ow = new My_Overlay_Window(x, y, w, h, label);
     return ow;
@@ -96,6 +75,10 @@ int fl_overlay_window_can_do_overlay(OVERLAYWINDOW w) {
     return reinterpret_cast<Fl_Overlay_Window*>(w)->can_do_overlay();
 }
 
+void fl_overlay_window_resize(OVERLAYWINDOW ow, int x, int y, int w, int h) {
+    reinterpret_cast<Fl_Overlay_Window*>(ow)->resize(x, y, w, h);
+}
+
 
 
 
@@ -118,4 +101,12 @@ void fl_overlay_window_redraw_overlay(OVERLAYWINDOW w) {
     reinterpret_cast<Fl_Overlay_Window*>(w)->redraw_overlay();
 }
 
+void fl_overlay_window_draw(OVERLAYWINDOW w) {
+    reinterpret_cast<My_Overlay_Window*>(w)->Fl_Overlay_Window::draw();
+}
+
+int fl_overlay_window_handle(OVERLAYWINDOW w, int e) {
+    return reinterpret_cast<My_Overlay_Window*>(w)->Fl_Overlay_Window::handle(e);
+}
+
 
-- 
cgit