1 files changed, 95 insertions, 0 deletions
diff --git a/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/debug/internal/ui/preferences/DecoratingIntegerFieldEditor.java b/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/debug/internal/ui/preferences/DecoratingIntegerFieldEditor.java
new file mode 100644
index 00000000000..7d155967292
--- /dev/null
+++ b/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/debug/internal/ui/preferences/DecoratingIntegerFieldEditor.java
@@ -0,0 +1,95 @@
+/*******************************************************************************
+ * Copyright (c) 2008 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.cdt.dsf.debug.internal.ui.preferences;
+
+import org.eclipse.jface.fieldassist.ControlDecoration;
+import org.eclipse.jface.fieldassist.FieldDecoration;
+import org.eclipse.jface.fieldassist.FieldDecorationRegistry;
+import org.eclipse.jface.preference.IntegerFieldEditor;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.FocusAdapter;
+import org.eclipse.swt.events.FocusEvent;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Text;
+
+/**
+ * An {@link IntegerFieldEditor} with field decoration.
+ * 
+ * @since 1.1
+ */
+public class DecoratingIntegerFieldEditor extends IntegerFieldEditor {
+
+	private ControlDecoration fDecoration;
+
+	protected DecoratingIntegerFieldEditor() {
+	}
+
+    /**
+     * Creates an integer field editor.
+     * 
+     * @param name the name of the preference this field editor works on
+     * @param labelText the label text of the field editor
+     * @param parent the parent of the field editor's control
+     */
+	public DecoratingIntegerFieldEditor(String name, String labelText, Composite parent) {
+		super(name, labelText, parent);
+	}
+
+    /**
+     * Creates an integer field editor.
+     * 
+     * @param name the name of the preference this field editor works on
+     * @param labelText the label text of the field editor
+     * @param parent the parent of the field editor's control
+     * @param textLimit the maximum number of characters in the text.
+     */
+	public DecoratingIntegerFieldEditor(String name, String labelText, Composite parent, int textLimit) {
+		super(name, labelText, parent, textLimit);
+	}
+
+	@Override
+	public Text getTextControl(Composite parent) {
+		Text control = super.getTextControl(parent);
+		if (fDecoration == null) {
+			fDecoration = new ControlDecoration(control, SWT.LEFT | SWT.TOP);
+			FieldDecoration errorDecoration = FieldDecorationRegistry.getDefault().getFieldDecoration(FieldDecorationRegistry.DEC_ERROR);
+			fDecoration.setImage(errorDecoration.getImage());
+			fDecoration.setDescriptionText(getErrorMessage());
+
+			// validate on focus gain
+            control.addFocusListener(new FocusAdapter() {
+                @Override
+				public void focusGained(FocusEvent e) {
+                    refreshValidState();
+                }
+            });
+		}
+		return control;
+	}
+	
+	@Override
+	protected void showErrorMessage(String msg) {
+		super.showErrorMessage(msg);
+		if (fDecoration != null) {
+			fDecoration.setDescriptionText(msg);
+			fDecoration.show();
+		}
+	}
+
+	@Override
+	protected void clearErrorMessage() {
+		super.clearErrorMessage();
+		if (fDecoration != null) {
+			fDecoration.hide();
+		}
+	}
+
+}