I normally edit 10 to 20 files at the same time and my screen is
filled with editor icons. To make things less messy, I edited your
source/window.c file so that when I iconify an editor window, the
window gets unmapped if there is at least one more window or icon
viewable on the screen. To get the unmapped window back, I just select
it from the "Windows" menu. Define -DHIDE_ICONS to get these changes
compiled in.

I have only tested these changes under SGI IRIX 6.1.

(Yunliang Yu, yu@math.duke.edu)
----------------------------------------------------------------------

diff -rc ../nedit_source.org/source/window.c ./source/window.c
*** ../nedit_source.org/source/window.c Wed Mar 20 16:13:51 1996
--- ./source/window.c   Fri May 24 14:01:49 1996
***************
*** 89,94 ****
--- 89,130 ----
  static void patchedRemoveChild(Widget child);
  #endif
  
+ #ifdef HIDE_ICONS
+ #define isViewable(w) \
+       XGetWindowAttributes(TheDisplay, XtWindow(w), &xwa) &&\
+       xwa.map_state == IsViewable
+ static void StructureNotifyCB(Widget w, XtPointer clientData,
+       XEvent *event, Boolean *flag)
+ {
+     WindowInfo *wi, *window=(WindowInfo *)clientData;
+     XWindowAttributes xwa;
+     Boolean lastone=True; /* this is the last viewable window */
+
+     /* printf("StructureNotifyCB changed\n"); */
+     switch(event->xany.type){
+     case UnmapNotify:
+         for (wi=WindowList; wi!=NULL; wi=wi->next) {
+             if(wi==window) continue;
+             if(isViewable(wi)){
+                       lastone=False;break;
+               }
+         }
+         if(!lastone){
+             XWithdrawWindow(TheDisplay,XtWindow(w),DefaultScreen(TheDisplay));
+         } /* else let WM iconify the window */
+
+         /* printf("unmap notify\n"); */
+     break;
+     case MapNotify:
+         /* printf("Map notify\n"); */
+     break;
+     default:
+         /* XtDispatchEvent(event); Don't do this, infinite loop*/
+     break;
+     }
+ }
+ #endif
+
  /*
  ** Create a new editor window
  */
***************
*** 157,162 ****
--- 193,203 ----
                applicationShellWidgetClass, TheDisplay, al, ac);
      window->shell = appShell;
  
+ #ifdef HIDE_ICONS
+     XtAddEventHandler(appShell, StructureNotifyMask, FALSE,
+               StructureNotifyCB, (XtPointer)window );
+ #endif
+
  #ifdef EDITRES
      XtAddEventHandler (appShell, (EventMask)0, True,
            _XEditResCheckMessages, NULL);
***************
*** 255,260 ****
--- 296,306 ----
  */
  void CloseWindow(WindowInfo *window)
  {
+ #ifdef HIDE_ICONS
+     WindowInfo *wi;
+     XWindowAttributes xwa;
+ #endif
+
      /* if this is the last window, don't close it, make it Untitled */
      if (WindowList == window && window->next == NULL) {
        window->readOnly = FALSE;
***************
*** 278,283 ****
--- 324,345 ----
        updateStatsLine(window);
        return;
      }
+
+ #ifdef HIDE_ICONS
+     /* bring up a hidden window if any */
+       if(isViewable(window->shell)){
+         for (wi=WindowList; wi!=NULL; wi=wi->next) {
+             if(wi == window) continue;
+                       if(!(isViewable(wi->shell))){
+                 XMapRaised(TheDisplay,XtWindow(wi->shell));
+                 break;
+             } else {
+                 XRaiseWindow(TheDisplay,XtWindow(wi->shell));
+                 break;
+             }
+         }
+     }
+ #endif
      
      /* remove the buffer modification callback so the buffer will be
         deallocated when the last text widget is destroyed */