Fix 'vtm.*' objects referencing in Lua (regression from 9d3fff95 v2026.07.13)

doc/settings.md

@@ -848,7 +848,7 @@ Notes
         <gridsize=""/>        <!-- Initial window grid size as "width,height" in text cells. If empty or "0,0", the OS window manager determines the size. -->
         <wincoor=""/>         <!-- Initial window coordinates "x,y" (top-left corner in physical pixels). If empty, the OS window manager determines the position. -->
         <winstate="normal"/>  <!-- Initial window state: "normal" | "maximized" | "minimized". -->
-        <blinkrate=400ms/>    <!-- Cursor/text blink rate (SGR 5/6). Set to zero to disable blinking. -->
+        <blinkrate=400ms/>    <!-- Text blink rate (SGR 5/6). Set to zero to disable blinking. -->
         <quality=80/>         <!-- 1-100: JPEG compression quality for raster graphics preview. -->
         <fonts>  <!-- Ordered font fallback list. Other available system fonts will be loaded dynamically. -->
             <font*/>  <!-- Clear previously defined fonts to start a new list. -->
@@ -984,7 +984,7 @@ Notes
             <height=1/>  <!-- Reserved space at the top of the desktop. -->
         </panel>
         <background>  <!-- Desktop background settings. -->
-            <color fgc=whitedk bgc= #00007fFF/>  <!-- Background color. -->
+            <color fgc=whitedk bgc= #00004080/>  <!-- Desktop background color. -->
             <tile=""/>                           <!-- Optional: Truecolor ANSI-art for the background. -->
         </background>
     </desktop>

src/netxs/desktopio/application.hpp

@@ -21,7 +21,7 @@ namespace netxs::app
 
 namespace netxs::app::shared
 {
-    static const auto version = "v2026.09.20";
+    static const auto version = "v2026.09.23";
     static const auto repository = "https://github.com/directvt/vtm";
     static const auto usr_config = "~/.config/vtm/settings.xml"s;
     static const auto sys_config = "/etc/vtm/settings.xml"s;

src/netxs/desktopio/canvas.hpp

@@ -1072,7 +1072,7 @@ namespace netxs
               a{ c.chan.a * inv_255 }
         { }
 
-        operator argb() const { return argb{ r, g, b, a }; }
+        operator argb () const { return argb{ r, g, b, a }; }
 
         bool operator > (auto n) const { return r > n || g > n || b > n || a > n; }
         auto operator / (auto n) const { return irgb{ r / n, g / n, b / n, a / n }; } // 10% faster than divround.

src/netxs/desktopio/controls.hpp

@@ -384,12 +384,21 @@ namespace netxs
             else if constexpr (std::is_same_v<std::decay_t<T>, twod>) return twod{ ::lua_tonumber(lua, idx), ::lua_tonumber(lua, idx + 1) };
             else if constexpr (std::is_same_v<std::decay_t<T>, sptr<ui::base>>)
             {
-                if (auto ptr = (ui::base*)::lua_touserdata(lua, idx)) // Get ui::base*.
-                {
-                    auto object_ptr = ptr->This();
-                    return object_ptr;
+                auto object_ptr = sptr<ui::base>{};
+                if (type == LUA_TTABLE)
+                {
+                    auto abs_idx = ::lua_absindex(lua, idx);
+                    ::lua_pushstring(lua, "__self");
+                    auto raw_type = ::lua_rawget(lua, abs_idx); // Push ptr to stack.
+                    if (raw_type == LUA_TLIGHTUSERDATA)
+                    if (auto ptr = (ui::base*)::lua_touserdata(lua, -1))
+                    {
+                        object_ptr = ptr->This();
+                    }
+                    //luna::vtmlua_log(lua);
+                    ::lua_pop(lua, 1); // Pop ptr from stack.
                 }
-                return sptr<ui::base>{};
+                return object_ptr;
             }
         }
         if constexpr (is_string_v || is_cstring_v) return text{ fallback };

src/netxs/desktopio/generics.hpp

@@ -447,7 +447,7 @@ namespace netxs::generics
             friend auto operator + (iter i, si32 n) { i += n; return i;                                                     }
             friend auto operator + (si32 n, iter i) { i += n; return i;                                                     }
             friend auto operator - (iter i, si32 n) { i -= n; return i;                                                     }
-            reference operator[](difference_type n) const { return *(*this + (si32)n);                                      }
+            reference operator [] (difference_type n) const { return *(*this + (si32)n);                                    }
         };
 
         ring(si32 ring_size, si32 grow_by = 0, si32 grow_mx = 0)
@@ -1137,9 +1137,9 @@ namespace netxs::generics
             handle_type h;
             bool        done;
 
-            void operator++()                            { h.resume(); done = h.done(); }
-            auto& operator*() const                      { return *(h.promise().current_value); }
-            auto operator!=(iterator const& other) const { return done != other.done; }
+            void operator ++ ()                            { h.resume(); done = h.done(); }
+            auto& operator * () const                      { return *(h.promise().current_value); }
+            auto operator != (iterator const& other) const { return done != other.done; }
         };
 
         auto begin()

src/netxs/desktopio/geometry.hpp

@@ -113,8 +113,8 @@ namespace netxs
         constexpr auto  operator ~  ()       const { return xy2d{       y, x       };  }
 
         //In C++11, signed shift left of a negative number is always undefined
-        //void operator>>= (T i) { x >>=i; y >>=i; }
-        //void operator<<= (T i) { x <<=i; y <<=i; }
+        //void operator >>= (T i) { x >>=i; y >>=i; }
+        //void operator <<= (T i) { x <<=i; y <<=i; }
         //
         //In C++11, signed shift left of a negative number is always undefined
         //xy2d operator << (T i) const { return { x << i, y << i }; }
@@ -753,7 +753,7 @@ namespace netxs
         base _data;
         rect _area;
         rect _clip;
-        auto length() const { return _data.length(); }
+        auto length() const { return _data.size();   }
         auto  begin()       { return _data.begin();  }
         auto  begin() const { return _data.begin();  }
         auto   data()       { return _data.data();   }