backported sys_queuegui changes from 0.46

implemented iemgui "pos" method

pd/nw/pdgui.js

@@ -2246,6 +2246,12 @@ return;
     }
 }
 
+function elem_move(elem, x, y) {
+    var t = elem.transform.baseVal.getItem(0);
+    t.matrix.e = x;
+    t.matrix.f = y;
+}
+
 function elem_displace(elem, dx, dy) {
         var t = elem.transform.baseVal.getItem(0);
         t.matrix.e += dx; 
@@ -2702,8 +2708,10 @@ function gui_iemgui_drawborder(cid, tag, bgcolor, x1, y1, x2, y2) {
     g.appendChild(rect);
 }
 
-function gui_iemgui_redraw_border(cid, tag, x1, y1, x2, y2) {
-    var item = get_gobj(cid, tag).querySelector('.border');
+function gui_iemgui_move_and_resize(cid, tag, x1, y1, x2, y2) {
+    var gobj = get_gobj(cid, tag);
+    var item = gobj.querySelector('.border');
+    elem_move(gobj, x1, y1);
     configure_item(item, {
         width: x2 - x1,
         height: y2 - y1

pd/src/g_all_guis.c

@@ -1228,7 +1228,7 @@ void iemgui_base_draw_move(t_iemgui *x) {
     c->c_wb->w_getrectfn((t_gobj *)x,x->x_glist,&x1,&y1,&x2,&y2);
     gop_redraw=gr;
     //sys_vgui(".x%lx.c coords %lxBASE %d %d %d %d\n", canvas, x, x1, y1, x2, y2);
-    gui_vmess("gui_iemgui_redraw_border", "xxiiii",
+    gui_vmess("gui_iemgui_move_and_resize", "xxiiii",
         canvas, x, x1, y1, x2, y2);
 }
 

pd/src/s_inter.c

@@ -1006,14 +1006,14 @@ void sys_queuegui(void *client, t_glist *glist, t_guicallbackfn f)
 void sys_unqueuegui(void *client)
 {
     t_guiqueue *gq, *gq2;
-    if (!sys_guiqueuehead)
-        return;
-    while (sys_guiqueuehead->gq_client == client)
+    while (sys_guiqueuehead && sys_guiqueuehead->gq_client == client)
     {
         gq = sys_guiqueuehead;
         sys_guiqueuehead = sys_guiqueuehead->gq_next;
         t_freebytes(gq, sizeof(*gq));
     }
+    if (!sys_guiqueuehead)
+        return;
     for (gq = sys_guiqueuehead; gq2 = gq->gq_next; gq = gq2)
         if (gq2->gq_client == client)
     {