1 files changed, 54 insertions, 0 deletions

diff --git a/src/cuchaz/enigma/gui/BoxHighlightPainter.java b/src/cuchaz/enigma/gui/BoxHighlightPainter.java
new file mode 100644
index 0000000..22db28b
--- /dev/null
+++ b/src/cuchaz/enigma/gui/BoxHighlightPainter.java
@@ -0,0 +1,54 @@
+/*******************************************************************************
+ * Copyright (c) 2014 Jeff Martin.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the GNU Public License v3.0
+ * which accompanies this distribution, and is available at
+ * http://www.gnu.org/licenses/gpl.html
+ * 
+ * Contributors:
+ *     Jeff Martin - initial API and implementation
+ ******************************************************************************/
+package cuchaz.enigma.gui;
+
+import java.awt.Color;
+import java.awt.Graphics;
+import java.awt.Rectangle;
+import java.awt.Shape;
+
+import javax.swing.text.BadLocationException;
+import javax.swing.text.Highlighter;
+import javax.swing.text.JTextComponent;
+
+public class BoxHighlightPainter implements Highlighter.HighlightPainter
+{
+        private static final Color FillColor = new Color( 230, 230, 230 );
+        private static final Color BorderColor = new Color( 100, 100, 100 );
+        
+        @Override
+        public void paint( Graphics g, int start, int end, Shape shape, JTextComponent text )
+        {
+                try
+                {
+                        // determine the bounds of the text
+                        Rectangle bounds = text.getUI().modelToView( text, start ).union( text.getUI().modelToView( text, end ) );
+                        
+                        // adjust the box so it looks nice
+                        bounds.x -= 2;
+                        bounds.width += 2;
+                        bounds.y += 1;
+                        bounds.height -= 2;
+                        
+                        // fill the area
+                        g.setColor( FillColor );
+                        g.fillRoundRect( bounds.x, bounds.y, bounds.width, bounds.height, 4, 4 );
+                        
+                        // draw a box around the area
+                        g.setColor( BorderColor );
+                        g.drawRoundRect( bounds.x, bounds.y, bounds.width, bounds.height, 4, 4 );
+                }
+                catch( BadLocationException ex )
+                {
+                        throw new Error( ex );
+                }
+        }
+}