Updates pull request from Roman Tsypuk to convert the build system from

ant to gradle.  Removes linux and windows application launch scripts and
produces an executable jar with all resources included.

src/main/java/io/github/dsheirer/gui/editor/DocumentListenerEditor.java

@@ -0,0 +1,29 @@
+package io.github.dsheirer.gui.editor;
+
+import javax.swing.event.DocumentEvent;
+import javax.swing.event.DocumentListener;
+
+public abstract class DocumentListenerEditor<T> extends Editor<T> 
+				implements DocumentListener
+{
+	private static final long serialVersionUID = 1L;
+
+	public DocumentListenerEditor()
+	{
+	}
+
+    @Override
+	public void insertUpdate( DocumentEvent e )
+	{
+		setModified( true );
+	}
+
+	@Override
+	public void removeUpdate( DocumentEvent e )
+	{
+		setModified( true );
+	}
+
+	@Override
+	public void changedUpdate( DocumentEvent e ) { }
+}

src/main/java/io/github/dsheirer/gui/editor/Editor.java

@@ -0,0 +1,148 @@
+/*******************************************************************************
+ * sdrtrunk
+ * Copyright (C) 2014-2017 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.editor;
+
+import javax.swing.*;
+
+/**
+ * Generic editor with change detection, save and reset functions.
+ *
+ * This editor supports hierarchical nesting of sub-component editors where changes are detected
+ * at the lowest editor in the tree and percolated up to the top-level editor for managing the
+ * configuration set as a whole.
+ *
+ * To configure this editor as a collective, register each parent editor as a saveRequestListener
+ * on each child editor.  If no save request listener is registered, the editor will simply invoke
+ * save when a change is detected and the user opts to save the contents.
+ *
+ * The top-level editor can override the saveRequest() method to perform custom save operations
+ * and validation.
+ */
+public abstract class Editor<T> extends JPanel
+{
+    private static final long serialVersionUID = 1L;
+
+    protected T mItem;
+    protected boolean mModified = false;
+    protected Editor<?> mSaveRequestListener;
+
+    public Editor()
+    {
+    }
+
+    /**
+     * Requests to save the contents of this editor.
+     *
+     * If a save request listener is registered, the listener is notified that a save is requested,
+     * otherwise the save is request is processed by the instance.
+     *
+     * This allows for a save event to be percolated up the hierarchical set of editors so that
+     * a top-level editor can invoke custom operations such as configuration validation.
+     */
+    protected void saveRequest()
+    {
+        if(mSaveRequestListener != null)
+        {
+            mSaveRequestListener.saveRequest();
+        }
+        else
+        {
+            save();
+        }
+    }
+
+    /**
+     * Registers the editor to be notified when this editor contents have been saved.
+     */
+    public void setSaveRequestListener(Editor<?> listener)
+    {
+        mSaveRequestListener = listener;
+    }
+
+
+    /**
+     * Sets the object to be edited.  If the contents from the previous object have changed, this
+     * prompts the user to save these changes.  A saveRequest() is issued and either this editor
+     * or the parent editor will respond to the save request and invoke the save() method.
+     */
+    public void setItem(T item)
+    {
+        if(isModified())
+        {
+            int option = JOptionPane.showConfirmDialog(
+                Editor.this,
+                "This item has changed.  Do you want to save these changes?",
+                "Save Changes?",
+                JOptionPane.YES_NO_OPTION,
+                JOptionPane.QUESTION_MESSAGE);
+
+            if(option == JOptionPane.YES_OPTION)
+            {
+                saveRequest();
+            }
+
+            setModified(false);
+        }
+
+        mItem = item;
+    }
+
+    /**
+     * Current editing item
+     */
+    public T getItem()
+    {
+        return mItem;
+    }
+
+    public boolean hasItem()
+    {
+        return mItem != null;
+    }
+
+    /**
+     * Sets the contents modified flag
+     */
+    public void setModified(boolean modified)
+    {
+        mModified = modified;
+    }
+
+    /**
+     * Indicates if this editor contents have been modified
+     */
+    public boolean isModified()
+    {
+        return mModified;
+    }
+
+    /**
+     * Save the contents of the editor
+     */
+    public abstract void save();
+
+    /**
+     * Reset the contents of the editor without saving any changes
+     */
+    public void reset()
+    {
+        mModified = false;
+        setItem(mItem);
+    }
+}

src/main/java/io/github/dsheirer/gui/editor/EditorValidationException.java

@@ -0,0 +1,25 @@
+package io.github.dsheirer.gui.editor;
+
+public class EditorValidationException extends Exception
+{
+	private static final long serialVersionUID = 1L;
+
+	private Editor<?> mEditor;
+	private String mReason;
+	
+	public EditorValidationException( Editor<?> editor, String reason )
+	{
+		mEditor = editor;
+		mReason = reason;
+	}
+
+	public Editor<?> getEditor()
+	{
+		return mEditor;
+	}
+	
+	public String getReason()
+	{
+		return mReason;
+	}
+}

src/main/java/io/github/dsheirer/gui/editor/EmptyEditor.java

@@ -0,0 +1,31 @@
+package io.github.dsheirer.gui.editor;
+
+import net.miginfocom.swing.MigLayout;
+
+import javax.swing.*;
+
+public class EmptyEditor<T> extends Editor<T>
+{
+	private static final long serialVersionUID = 1L;
+
+	public EmptyEditor( String descriptor )
+	{
+		setLayout( new MigLayout( "insets 0 0 0 0", "[center]", "[grow]" ) );
+		add( new JLabel( "Please select " + descriptor ), "wrap" );
+	}
+	
+	public EmptyEditor()
+	{
+		this( "an item" );
+	}
+
+	@Override
+	public void save()
+	{
+	}
+
+	@Override
+	public void reset()
+	{
+	}
+}

src/main/java/io/github/dsheirer/gui/editor/EmptyValidatingEditor.java

@@ -0,0 +1,36 @@
+package io.github.dsheirer.gui.editor;
+
+import net.miginfocom.swing.MigLayout;
+
+import javax.swing.*;
+
+public class EmptyValidatingEditor<T> extends ValidatingEditor<T>
+{
+	private static final long serialVersionUID = 1L;
+
+	public EmptyValidatingEditor( String descriptor )
+	{
+		setLayout( new MigLayout( "insets 0 0 0 0", "", "" ) );
+		add( new JLabel( "Please select " + descriptor ), "wrap" );
+	}
+	
+	public EmptyValidatingEditor()
+	{
+		this( "an item" );
+	}
+
+	@Override
+	public void save()
+	{
+	}
+
+	@Override
+	public void reset()
+	{
+	}
+
+	@Override
+	public void validate( Editor<T> editor ) throws EditorValidationException
+	{
+	}
+}

src/main/java/io/github/dsheirer/gui/editor/ValidatingEditor.java

@@ -0,0 +1,15 @@
+package io.github.dsheirer.gui.editor;
+
+
+/**
+ * Editor class that allows other editors to be validated for configuration with this editor
+ */
+public abstract class ValidatingEditor<T> extends Editor<T>
+{
+	private static final long serialVersionUID = 1L;
+
+	/**
+	 * Indicates if the editor argument is valid according to the settings of this editor
+	 */
+	public abstract void validate( Editor<T> editor ) throws EditorValidationException;
+}