add scaling to vu

pd/src/g_vumeter.c

@@ -314,7 +314,11 @@ static void vu_draw_select(t_vu* x,t_glist* glist)
 static void vu__clickhook(t_scalehandle *sh, int newstate)
 {
     t_vu *x = (t_vu *)(sh->h_master);
-    if (sh->h_dragon && newstate == 0  && sh->h_scale)
+    if (newstate && sh->h_scale)
+    {
+        canvas_apply_setundo(x->x_gui.x_glist, (t_gobj *)x);
+    }
+    else if (sh->h_dragon && newstate == 0  && sh->h_scale)
     {
         canvas_apply_setundo(x->x_gui.x_glist, (t_gobj *)x);
         if (sh->h_dragx || sh->h_dragy)
@@ -335,18 +339,32 @@ static void vu__clickhook(t_scalehandle *sh, int newstate)
     iemgui__clickhook3(sh,newstate);
 }
 
-static void vu__motionhook(t_scalehandle *sh, t_floatarg f1, t_floatarg f2)
+static void vu__motionhook(t_scalehandle *sh, t_floatarg mouse_x, t_floatarg mouse_y)
 {
-    if (sh->h_dragon && sh->h_scale)
+    if (sh->h_scale)
     {
         t_vu *x = (t_vu *)(sh->h_master);
-        int dx = (int)f1, dy = (int)f2;
+        int dx = (int)(mouse_x - sh->h_offset_x),
+            dy = (int)(mouse_y - sh->h_offset_y);
         dx = maxi(dx, 8-x->x_gui.x_w);
-        dy = maxi(dy,80-x->x_gui.x_h);        
+        dy = maxi(dy,80-x->x_gui.x_h);
         sh->h_dragx = dx;
         sh->h_dragy = dy;
         scalehandle_drag_scale(sh);
 
+        x->x_gui.x_w += dx;
+        x->x_gui.x_h += dy;
+
+        if (glist_isvisible(x->x_gui.x_glist))
+        {
+            /* draw_move doesn't seem to cut it for vu, so we
+               just toggle visibility */
+            //vu_draw_move(x, x->x_gui.x_glist);
+            gobj_vis((t_gobj *)x, x->x_gui.x_glist, 0);
+            gobj_vis((t_gobj *)x, x->x_gui.x_glist, 1);
+            scalehandle_unclick_scale(sh);
+        }
+
         int properties = gfxstub_haveproperties((void *)x);
         if (properties)
         {
@@ -356,7 +374,7 @@ static void vu__motionhook(t_scalehandle *sh, t_floatarg f1, t_floatarg f2)
             properties_set_field_int(properties,"dim.h_ent",new_h);
         }
     }
-    scalehandle_dragon_label(sh,f1,f2);
+    scalehandle_dragon_label(sh,mouse_x - sh->h_offset_x, mouse_y - sh->h_offset_y);
 }
 
 void vu_draw(t_vu *x, t_glist *glist, int mode)