#5 Playlist Editor With Radio Reference Support (#760)

* WIP - Adds support for aliasing P25 Phase 2 tones.Playlist editor - adds editor support for alias actions

* Playlist editor implementation and integration into application is complete. Adds JavaFX window monitoring to persist window size/location across application runs.

Co-authored-by: Denny <denny@denny-desktop>

src/main/java/io/github/dsheirer/gui/control/IntegerTextField.java

@@ -0,0 +1,84 @@
+/*
+ *
+ *  * ******************************************************************************
+ *  * Copyright (C) 2014-2020 Dennis Sheirer
+ *  *
+ *  * This program 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 3 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, see <http://www.gnu.org/licenses/>
+ *  * *****************************************************************************
+ *
+ *
+ */
+
+package io.github.dsheirer.gui.control;
+
+import javafx.scene.control.TextField;
+import javafx.scene.control.TextFormatter;
+import javafx.util.converter.IntegerStringConverter;
+
+import java.util.function.UnaryOperator;
+
+/**
+ * Text field control for integer values.
+ */
+public class IntegerTextField extends TextField
+{
+    private static final String REGEX = "[1-9][0-9]*";
+
+    /**
+     * Constructs an instance
+     */
+    public IntegerTextField()
+    {
+        UnaryOperator<TextFormatter.Change> filter = change ->
+        {
+            String newText = change.getControlNewText();
+
+            if(newText.isEmpty() || newText.matches(REGEX))
+            {
+                return change;
+            }
+
+            return null;
+        };
+
+        setTextFormatter(new TextFormatter<Integer>(new IntegerStringConverter(), 0, filter));
+    }
+
+    /**
+     * Current integer value of the control, or null if the value is not parsable as an integer
+     */
+    public Integer get()
+    {
+        String rawText = getText();
+
+        try
+        {
+            return Integer.parseInt(rawText);
+        }
+        catch(Exception pe)
+        {
+            //Do nothing ... we couldn't parse the value
+        }
+
+        return null;
+    }
+
+    /**
+     * Sets the integer value in the control
+     */
+    public void set(int value)
+    {
+        setText(String.valueOf(value));
+    }
+}