Simplifications for plugdata drawing mechanism, fixed iolet position offset when zoomed in pd-vanilla

Author: timothyschoen

pdlua.c

@@ -1111,7 +1111,6 @@ static int pdlua_object_new(lua_State *L)
 #else
                 // NULL until plugdata overrides them with something useful
                 o->gfx.plugdata_draw_callback = NULL;
-                o->gfx.plugdata_callback_target = NULL;
 #endif
 
                 lua_pushlightuserdata(L, o);

pdlua.h

@@ -45,7 +45,6 @@ typedef struct _pdlua_gfx
     char current_color[8]; // Keep track of current color
 #else
     void(*plugdata_draw_callback)(void*, t_symbol*, int, t_atom*); // Callback to perform drawing in plugdata
-    void* plugdata_callback_target; // Pointer to plugdata object, the target for our draw callback
 #endif
 
     // Size variables

pdlua_gfx.h

@@ -244,8 +244,8 @@ static int get_size(lua_State* L)
 // Wrapper around draw callback to plugdata
 static inline void plugdata_draw(t_pdlua* obj, t_symbol* sym, int argc, t_atom* argv)
 {
-    if(obj->gfx.plugdata_callback_target) {
-        obj->gfx.plugdata_draw_callback(obj->gfx.plugdata_callback_target, sym, argc, argv);
+    if(obj->gfx.plugdata_draw_callback) {
+        obj->gfx.plugdata_draw_callback(obj, sym, argc, argv);
     }
 }
 
@@ -637,9 +637,11 @@ static void gfx_displace(t_pdlua *x, t_glist *glist, int dx, int dy)
     sys_vgui(".x%lx.c move .x%lx %d %d\n", glist_getcanvas(x->canvas), (long)x, dx, dy);
     canvas_fixlinesfor(glist, (t_text*)x);
 
+    auto scale = glist_getzoom(glist_getcanvas(x->canvas));
+    
     int xpos = text_xpix((t_object*)x, x->canvas);
     int ypos = text_ypix((t_object*)x, x->canvas);
-    glist_drawiofor(glist_getcanvas(x->canvas), (t_object*)x, 0, x->gfx.object_tag, xpos, ypos, xpos + x->gfx.width, ypos + x->gfx.height);
+    glist_drawiofor(x->canvas, (t_object*)x, 0, x->gfx.object_tag, xpos, ypos, xpos + (x->gfx.width * scale), ypos + (x->gfx.height * scale));
 }
 
 static const char* register_drawing(t_pdlua *object)