[Pixelle-commit] SF.net SVN: pixelle:[217] trunk/pixelle/src/com/mebigfatguy/pixelle/utils/ IntegerDocument.java

[<dbr...@us...>]

Revision: 217
          http://pixelle.svn.sourceforge.net/pixelle/?rev=217&view=rev
Author:   dbrosius
Date:     2008-11-22 01:56:50 +0000 (Sat, 22 Nov 2008)

Log Message:
-----------
a swing document to inforce integer entry

Added Paths:
-----------
    trunk/pixelle/src/com/mebigfatguy/pixelle/utils/IntegerDocument.java

Added: trunk/pixelle/src/com/mebigfatguy/pixelle/utils/IntegerDocument.java
===================================================================
--- trunk/pixelle/src/com/mebigfatguy/pixelle/utils/IntegerDocument.java	                        (rev 0)
+++ trunk/pixelle/src/com/mebigfatguy/pixelle/utils/IntegerDocument.java	2008-11-22 01:56:50 UTC (rev 217)
@@ -0,0 +1,46 @@
+/*
+ * pixelle - Graphics algorithmic editor
+ * Copyright (C) 2008 Dave Brosius
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ * 
+ * This library 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
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+package com.mebigfatguy.pixelle.utils;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import javax.swing.text.AttributeSet;
+import javax.swing.text.BadLocationException;
+import javax.swing.text.PlainDocument;
+
+
+public class IntegerDocument extends PlainDocument
+{
+	private static final long serialVersionUID = -4300414460486882975L;
+	
+	private static final Pattern INTEGERPATTERN = Pattern.compile("-?[0-9]*");
+    
+    @Override
+    public void insertString(int offs, String str, AttributeSet a) throws BadLocationException {
+        String start = getText(0, offs);
+        String end = getText(offs, this.getLength() - offs);
+        String newIntegerString = (start + str + end).trim();
+        
+        Matcher m = INTEGERPATTERN.matcher(newIntegerString);
+        if (m.matches()) {
+            super.insertString(offs, str, a);
+        }
+    }
+}
\ No newline at end of file


Property changes on: trunk/pixelle/src/com/mebigfatguy/pixelle/utils/IntegerDocument.java
___________________________________________________________________
Added: svn:mime-type
   + text/plain
Added: svn:eol-style
   + native


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