Relicense MonitorArrangement widget

This was designed as a general FLTK widget and we want to encourage
others to use it and improve it. So relicense these particular files in
a way that allows it to be used by anyone using FLTK.

As part of this we need to stop using other parts of TigerVNC as that
code is still covered by the GPL.

vncviewer/MonitorArrangement.cxx

@@ -1,20 +1,25 @@
 /* Copyright 2021 Hugo Lundin <huglu@cendio.se> for Cendio AB.
  * Copyright 2021 Pierre Ossman for Cendio AB
  * 
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
  * 
- * This software is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
  * 
- * You should have received a copy of the GNU General Public License
- * along with this software; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
- * USA.
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
  */
 
 #include <set>
@@ -43,18 +48,9 @@
 #include <IOKit/hidsystem/IOHIDParameter.h>
 #endif
 
-#include <rfb/Rect.h>
-#include <rfb/LogWriter.h>
-
-#ifdef WIN32
-#include "win32.h"
-#endif
-
-#include "i18n.h"
 #include "MonitorArrangement.h"
 
 static std::set<MonitorArrangement *> instances;
-static rfb::LogWriter vlog("MonitorArrangement");
 static const Fl_Boxtype FL_CHECKERED_BOX = FL_FREE_BOXTYPE;
 
 MonitorArrangement::MonitorArrangement(
@@ -242,13 +238,19 @@ bool MonitorArrangement::is_required(int m)
     }
   }
 
-  rfb::Rect viewport, monitor;
-  viewport.setXYWH(left_x, top_y, right_x - left_x, bottom_y - top_y);
 
   Fl::screen_xywh(x, y, w, h, m);
-  monitor.setXYWH(x, y, w, h);
 
-  return monitor.enclosed_by(viewport);
+  if (x < left_x)
+    return false;
+  if ((x + w) > right_x)
+    return false;
+  if (y < top_y)
+    return false;
+  if ((y + h) > bottom_y)
+    return false;
+
+  return true;
 }
 
 double MonitorArrangement::scale()
@@ -486,24 +488,18 @@ std::string MonitorArrangement::get_monitor_name(int m)
   assert(fl_display != NULL);
   Fl::screen_xywh(x, y, w, h, m);
 
-  if (!XQueryExtension(fl_display, "RANDR", &xi_major, &ev, &err)) {
-    vlog.info(_("Failed to get monitor name because X11 RandR could not be found"));
+  if (!XQueryExtension(fl_display, "RANDR", &xi_major, &ev, &err))
     return "";
-  }
 
   XRRScreenResources *res = XRRGetScreenResources(fl_display, DefaultRootWindow(fl_display));
-  if (!res) {
-    vlog.error(_("Failed to get system monitor configuration"));
+  if (!res)
     return "";
-  }
 
   for (int i = 0; i < res->ncrtc; i++) {
     XRRCrtcInfo *crtc = XRRGetCrtcInfo(fl_display, res, res->crtcs[i]);
 
-    if (!crtc) {
-      vlog.error(_("Failed to get information about CRTC %d"), i);
+    if (!crtc)
       continue;
-    }
 
     if ((crtc->x != x) || (crtc->y != y) ||
         ((int)crtc->width != w) || ((int)crtc->height != h))
@@ -513,10 +509,8 @@ std::string MonitorArrangement::get_monitor_name(int m)
       XRROutputInfo *output;
 
       output = XRRGetOutputInfo(fl_display, res, crtc->outputs[j]);
-      if (!output) {
-        vlog.error(_("Failed to get information about output %d for CRTC %d"), j, i);
+      if (!output)
         continue;
-      }
 
       if (!name.empty())
         name += " / ";

vncviewer/MonitorArrangement.h

@@ -1,20 +1,25 @@
 /* Copyright 2021 Hugo Lundin <huglu@cendio.se> for Cendio AB.
  * Copyright 2021 Pierre Ossman for Cendio AB
  *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This software is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this software; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
- * USA.
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
  */
 
 #ifndef __MONITOR_ARRANGEMENT_H__