Improvements to pdlua graphics

pd.lua

@@ -184,14 +184,16 @@ function pd.Clock:destruct()
 end
 
 function pd.Clock:dispatch()
-  local m = self._target[self._method]
-  if type(m) == "function" then
-    return m(self._target)
-  else
-    self._target:error(
-      "no method for `" .. self._method ..
-      "' at clock of Lua object `" .. self._name .. "'"
-    )
+  if pd._objects[self._target] then
+    local m = self._target[self._method]
+    if type(m) == "function" then
+        return m(self._target)
+    else
+        self._target:error(
+        "no method for `" .. self._method ..
+        "' at clock of Lua object `" .. self._name .. "'"
+        )
+    end
   end
 end
 

pdlua.h

@@ -17,28 +17,32 @@
 
 #include "m_pd.h"
 
-#if !PLUGDATA
 typedef enum {SCALE, TRANSLATE} transform_type;
 
 typedef struct _gfx_transform
 {
     transform_type type;
     float x, y;
 } gfx_transform;
-#endif
 
 typedef struct _pdlua_gfx
 {
     // Size variables
     int width, height;
+    void *object;
 
 #if !PLUGDATA
     char object_tag[128]; // Tcl/tk tag that is attached to all drawings
     char order_tag[64]; // Tag for invisible line, used to preserve correct object ordering
+    char current_item_tag[64]; // Tcl/tk tag that is only attached to the current drawing in progress
+    gfx_transform* transforms;
+    int num_transforms;
+    char current_color[8]; // Keep track of current color
 
     // Variables to keep track of mouse button state and drag position
     int mouse_drag_x, mouse_drag_y, mouse_down;
     int first_draw;
+
 #else
     void(*plugdata_draw_callback)(void*, t_symbol*, int, t_atom*); // Callback to perform drawing in plugdata
 #endif