#usage "<b>Show object and zoom in</b>\n"
       "<p>"
       "Implemented for parts and signals on a board. "
       "Could be extended for schematics."
       "<p>"
       "<author>Author: support@cadsoft.de</author>"

// THIS PROGRAM IS PROVIDED AS IS AND WITHOUT WARRANTY OF ANY KIND, EXPRESSED OR IMPLIED

string   h, cmd = "", sname = "";
real     x, y, zoom_win = 10;
int      part = 1, xmin, xmax, ymin, ymax, found = 0;

zoom_win = zoom_win/2;

if (board) board(B) {
   cmd = "grid mm finest;\n";
   int Result = dlgDialog("Show and zoom in") {
   dlgHBoxLayout {
      dlgGroup("Include") {
         dlgRadioButton("&Signals", part);
         dlgRadioButton("&Parts",   part);
         }
      }
   dlgLabel("&Enter Name");
   dlgStringEdit(sname);
   dlgHBoxLayout {
      dlgPushButton("+OK") dlgAccept();
      dlgPushButton("-Cancel") dlgReject();
      }
   };
   if (Result == 0) exit (0);

   if (!part) { // if signals checked
      B.signals(S) {
        if (strupr(sname)==strupr(S.name)) {
           found = 1;
           S.wires(W) {
             xmin = min(W.x1, W.x2);
             ymin = min(W.y1, W.y2);
             xmax = max(W.x1, W.x2);
             ymax = max(W.y1, W.y2);
             break;
             }
           S.wires(W) {
             xmin = min(xmin, W.x1);
             xmin = min(xmin, W.x2);
             ymin = min(ymin, W.y1);
             ymin = min(ymin, W.y2);
             xmax = max(xmax, W.x1);
             xmax = max(xmax, W.x2);
             ymax = max(ymax, W.y1);
             ymax = max(ymax, W.y2);
             }
           xmin = u2mm(xmin);
           xmax = u2mm(xmax);
           ymin = u2mm(ymin);
           ymax = u2mm(ymax);
           }
        }
      h = "";
      sprintf(h, "Window (%f %f)(%f %f);\n",
                  xmin-zoom_win, ymin-zoom_win, xmax+zoom_win, ymax+zoom_win);
      }

   if (part) { // if parts checked
      B.elements(E) {
        if (strupr(sname)==strupr(E.name)) {
           found = 1;
           x = u2mm(E.x);
           y = u2mm(E.y);
           }
        }
      h = "";
      sprintf(h, "Window (%f %f)(%f %f);\n",
                  x-zoom_win, y-zoom_win, x+zoom_win, y+zoom_win);
      }

   if (!found) {
      dlgMessageBox("Name not found!", "&OK");
      exit(1);
      }
   cmd += h;
   cmd += "Show " + sname + ";\n";
   cmd += "grid last;\n";
   exit(cmd);
   }
else {
   dlgMessageBox("No board loaded!");
   exit(1);
   }