New Preferences window: renders fine on every OS and it's easier to adapt using NetBeans as visual editor. Fixes #3140

Author: Federico Fissore

app/src/cc/arduino/view/SplashScreenHelper.java

@@ -89,7 +89,7 @@ public void close() {
     splash.close();
   }
 
-  public void printText(String str) {
+  private void printText(String str) {
     System.out.println(str);
   }
 

app/src/cc/arduino/view/StubMenuListener.java

@@ -1,3 +1,32 @@
+/*
+ * This file is part of Arduino.
+ *
+ * Copyright 2015 Arduino LLC (http://www.arduino.cc/)
+ *
+ * Arduino 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 program 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 program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction.  Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License.  This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ */
+
 package cc.arduino.view;
 
 import javax.swing.event.MenuEvent;

app/src/cc/arduino/view/preferences/AdditionalBoardsManagerURLTextArea.java

@@ -35,6 +35,7 @@
 import com.google.common.collect.FluentIterable;
 import processing.app.Base;
 
+import java.awt.*;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.awt.event.WindowEvent;
@@ -47,7 +48,7 @@ public class AdditionalBoardsManagerURLTextArea extends javax.swing.JDialog {
 
   private ActionListener onOkListener;
 
-  public AdditionalBoardsManagerURLTextArea(java.awt.Frame parent) {
+  public AdditionalBoardsManagerURLTextArea(Window parent) {
     super(parent);
     initComponents();
     setLocationRelativeTo(parent);