1 files changed, 78 insertions, 0 deletions
diff --git a/target_explorer/plugins/org.eclipse.tcf.te.ui.controls/src/org/eclipse/tcf/te/ui/controls/validator/HexVerifyListener.java b/target_explorer/plugins/org.eclipse.tcf.te.ui.controls/src/org/eclipse/tcf/te/ui/controls/validator/HexVerifyListener.java
new file mode 100644
index 000000000..348e2a0aa
--- /dev/null
+++ b/target_explorer/plugins/org.eclipse.tcf.te.ui.controls/src/org/eclipse/tcf/te/ui/controls/validator/HexVerifyListener.java
@@ -0,0 +1,78 @@
+/*******************************************************************************
+ * Copyright (c) 2011 Wind River Systems, Inc. and others. All rights reserved.
+ * This program and the accompanying materials are made available under the terms
+ * of the Eclipse Public License v1.0 which accompanies this distribution, and is
+ * available at http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * Wind River Systems - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.tcf.te.ui.controls.validator;
+
+import org.eclipse.core.runtime.Assert;
+import org.eclipse.swt.events.VerifyEvent;
+
+/**
+ * Verify listener for text widgets to receive hex values.
+ */
+public class HexVerifyListener extends RegexVerifyListener {
+
+	// arguments (binary coded)
+	public static final int ATTR_TO_UPPER_CASE = 1;
+	public static final int ATTR_ALLOW_DECIMAL = 2;
+
+	/**
+	 * Enables negative decimal numbers. Has effect on if {@link #ATTR_ALLOW_DECIMAL}
+	 * is set as well.
+	 */
+	public static final int ATTR_ALLOW_NEGATIVE_DECIMAL = 4;
+
+	/**
+	 * Enables negative hexadecimal numbers.
+	 */
+	public static final int ATTR_ALLOW_NEGATIVE_HEX = 8;
+	// next attribute should start with 2^4
+
+	// regular expressions
+	protected static final String HEX_REGEX = "@NEGATIVE@(0((x|X)[0-9a-fA-F]{0,@BYTES@})?)?"; //$NON-NLS-1$
+	protected static final String NUMBER_REGEX = "@NEGATIVE@([0-9]*)"; //$NON-NLS-1$
+
+	/**
+	 * Constructor
+	 * @param bytes The number of bytes (hex digits) allowed.
+	 */
+	public HexVerifyListener(int attributes, int bytes) {
+		super(attributes, getRegEx(attributes, bytes));
+	}
+
+	/*
+	 * Static method to generate regular expression for constructor super call.
+	 */
+	private static String getRegEx(int attributes, int bytes) {
+		return (isAttribute(ATTR_ALLOW_DECIMAL, attributes)
+									? NUMBER_REGEX.replaceAll("@NEGATIVE@", isAttribute(ATTR_ALLOW_NEGATIVE_DECIMAL, attributes) ? "-?" : "") + "|"    //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+									: "") + HEX_REGEX.replaceAll("@BYTES@", "" + bytes) //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+														.replaceAll("@NEGATIVE@", isAttribute(ATTR_ALLOW_NEGATIVE_HEX, attributes) ? "-?" : ""); //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$
+	}
+
+	/**
+	 * Adjust the value for maximum byte allowed.
+	 *
+	 * @param maxBytes The maximum number of bytes. Must be non-negative.
+	 */
+	public void setBounds(int maxBytes) {
+		Assert.isTrue(maxBytes >= 0);
+		setRegularExpression(getRegEx(getAttributes(), maxBytes));
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.tcf.te.ui.controls.validator.RegexVerifyListener#verifyText(org.eclipse.swt.events.VerifyEvent)
+	 */
+	@Override
+	public void verifyText(VerifyEvent e) {
+		super.verifyText(e);
+		if (e.doit && isAttribute(ATTR_TO_UPPER_CASE)) {
+			e.text = e.text.toUpperCase().replace('X', 'x');
+		}
+	}
+}