Remove maximum size limits for nxagent window

Set maximum size to MAXSHORT (32767).

This especially helps when reconnecting to a session that had
initially been started from a client with a small(er) screen. Before
it was impossible to increase the maximum size of a running session
beyond the screen size of the client that had initiated the session.

This change, together with the previous commit, fixes #472

Author: uli42

nx-X11/programs/Xserver/hw/nxagent/Events.c

@@ -593,8 +593,8 @@ void nxagentSwitchResizeMode(ScreenPtr pScreen)
 
     if (nxagentOption(Fullscreen) == 0)
     {
-      sizeHints.max_width = nxagentOption(RootWidth);
-      sizeHints.max_height = nxagentOption(RootHeight);
+      sizeHints.max_width = MAXSHORT;
+      sizeHints.max_height = MAXSHORT;
 
       XSetWMNormalHints(nxagentDisplay, nxagentDefaultWindows[pScreen->myNum],
                             &sizeHints);
@@ -614,8 +614,8 @@ void nxagentSwitchResizeMode(ScreenPtr pScreen)
       NXSetExposeParameters(nxagentDisplay, 0, 0, 0);
     }
 
-    sizeHints.max_width = WidthOfScreen(DefaultScreenOfDisplay(nxagentDisplay));
-    sizeHints.max_height = HeightOfScreen(DefaultScreenOfDisplay(nxagentDisplay));
+    sizeHints.max_width = MAXSHORT;
+    sizeHints.max_height = MAXSHORT;
 
     XSetWMNormalHints(nxagentDisplay, nxagentDefaultWindows[pScreen->myNum],
                           &sizeHints);
@@ -639,9 +639,6 @@ void nxagentShadowSwitchResizeMode(ScreenPtr pScreen)
     nxagentShadowCreateMainWindow(screenInfo.screens[DefaultScreen(nxagentDisplay)], screenInfo.screens[0]->root,
                                       screenInfo.screens[0]->root -> drawable.width, screenInfo.screens[0]->root -> drawable.height);
 
-    sizeHints.max_width = nxagentOption(RootWidth);
-    sizeHints.max_height = nxagentOption(RootHeight);
-
     fprintf(stderr,"Info: Disabled resize mode in shadow agent.\n");
   }
   else
@@ -655,12 +652,12 @@ void nxagentShadowSwitchResizeMode(ScreenPtr pScreen)
                                       screenInfo.screens[0]->root, screenInfo.screens[0]->root -> drawable.width,
                                           screenInfo.screens[0]->root -> drawable.height);
 
-    sizeHints.max_width = WidthOfScreen(DefaultScreenOfDisplay(nxagentDisplay));
-    sizeHints.max_height = HeightOfScreen(DefaultScreenOfDisplay(nxagentDisplay));
-
     fprintf(stderr,"Info: Enabled resize mode in shadow agent.\n");
   }
 
+  sizeHints.max_width = MAXSHORT;
+  sizeHints.max_height = MAXSHORT;
+
   XSetWMNormalHints(nxagentDisplay, nxagentDefaultWindows[pScreen->myNum],
                        &sizeHints);
 }

nx-X11/programs/Xserver/hw/nxagent/Screen.c

@@ -1852,16 +1852,8 @@ N/A
     sizeHints.width = nxagentOption(RootWidth);
     sizeHints.height = nxagentOption(RootHeight);
 
-    if (nxagentOption(DesktopResize) == 1 || nxagentOption(Fullscreen) == 1)
-    {
-      sizeHints.max_width = WidthOfScreen(DefaultScreenOfDisplay(nxagentDisplay));
-      sizeHints.max_height = HeightOfScreen(DefaultScreenOfDisplay(nxagentDisplay));
-    }
-    else
-    {
-      sizeHints.max_width = nxagentOption(RootWidth);
-      sizeHints.max_height = nxagentOption(RootHeight);
-    }
+    sizeHints.max_width = MAXSHORT;
+    sizeHints.max_height = MAXSHORT;
 
     if (nxagentUserGeometry.flag & XValue || nxagentUserGeometry.flag & YValue)
       sizeHints.flags |= USPosition;
@@ -2374,17 +2366,8 @@ FIXME: We should try to restore the previously
     sizeHints.min_height = MIN_NXAGENT_HEIGHT;
     sizeHints.width = width;
     sizeHints.height = height;
-
-    if (nxagentOption(DesktopResize) == 1)
-    {
-      sizeHints.max_width = WidthOfScreen(DefaultScreenOfDisplay(nxagentDisplay));
-      sizeHints.max_height = HeightOfScreen(DefaultScreenOfDisplay(nxagentDisplay));
-    }
-    else
-    {
-      sizeHints.max_width = nxagentOption(RootWidth);
-      sizeHints.max_height = nxagentOption(RootHeight);
-    }
+    sizeHints.max_width = MAXSHORT;
+    sizeHints.max_height = MAXSHORT;
 
     if (nxagentUserGeometry.flag & XValue || nxagentUserGeometry.flag & YValue)
     {
@@ -4412,16 +4395,8 @@ void nxagentSetWMNormalHints(int screen)
   sizeHints.width = nxagentOption(Width);
   sizeHints.height = nxagentOption(Height);
 
-  if (nxagentOption(DesktopResize) == 1)
-  {
-    sizeHints.max_width = WidthOfScreen(DefaultScreenOfDisplay(nxagentDisplay));
-    sizeHints.max_height = HeightOfScreen(DefaultScreenOfDisplay(nxagentDisplay));
-  }
-  else
-  {
-    sizeHints.max_width = nxagentOption(RootWidth);
-    sizeHints.max_height = nxagentOption(RootHeight);
-  }
+  sizeHints.max_width = MAXSHORT;
+  sizeHints.max_height = MAXSHORT;
 
   if (nxagentUserGeometry.flag & XValue || nxagentUserGeometry.flag & YValue)
   {
@@ -4450,8 +4425,8 @@ void nxagentShadowAdaptToRatio(void)
 
   nxagentShadowCreateMainWindow(pScreen, screenInfo.screens[0]->root, nxagentShadowWidth, nxagentShadowHeight);
 
-  sizeHints.max_width = WidthOfScreen(DefaultScreenOfDisplay(nxagentDisplay));
-  sizeHints.max_height = HeightOfScreen(DefaultScreenOfDisplay(nxagentDisplay));
+  sizeHints.max_width = MAXSHORT;
+  sizeHints.max_height = MAXSHORT;
 
   sizeHints.flags = PMaxSize;