JAL-3746 apply copyright to source

[jalview.git] / src / jalview / gui / JalviewColourChooser.java

diff --git a/src/jalview/gui/JalviewColourChooser.java b/src/jalview/gui/JalviewColourChooser.java
index e0c4eeb..2a6c2c5 100644 (file)
--- a/src/jalview/gui/JalviewColourChooser.java
+++ b/src/jalview/gui/JalviewColourChooser.java
@@ -1,16 +1,32 @@
+/*
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors
+ * 
+ * This file is part of Jalview.
+ * 
+ * Jalview 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.
+ *  
+ * Jalview 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 Jalview.  If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
+ */
 package jalview.gui;
 
-import jalview.gui.JalviewColourChooser.ColourChooserListener;
-
 import java.awt.Color;
 import java.awt.Component;
-import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 
 import javax.swing.JColorChooser;
 import javax.swing.JComponent;
 import javax.swing.JDialog;
-import javax.swing.JPanel;
 
 /**
  * A helper class that shows a JColorChooser and passes the selected colour back
@@ -21,6 +37,10 @@ public class JalviewColourChooser
   public interface ColourChooserListener
   {
     void colourSelected(Color c);
+
+    default void cancel()
+    {
+    };
   }
 
   /**
@@ -41,16 +61,11 @@ public class JalviewColourChooser
     {
       colorChooser.setColor(initialColour);
     }
-    ActionListener al = new ActionListener()
-    {
-      @Override
-      public void actionPerformed(ActionEvent e)
-      {
-        listener.colourSelected(colorChooser.getColor());
-      };
-    };
+    ActionListener onChoose = evt -> listener
+            .colourSelected(colorChooser.getColor());
+    ActionListener onCancel = evt -> listener.cancel();
     JDialog dialog = JColorChooser.createDialog(parent, title, true,
-            colorChooser, al, null);
+            colorChooser, onChoose, onCancel);
     dialog.setVisible(true);
   }