1 files changed, 88 insertions, 0 deletions
diff --git a/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/debug/ui/viewmodel/numberformat/NumberFormatsPropertyTester.java b/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/debug/ui/viewmodel/numberformat/NumberFormatsPropertyTester.java
new file mode 100644
index 00000000000..7dc699bf345
--- /dev/null
+++ b/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/debug/ui/viewmodel/numberformat/NumberFormatsPropertyTester.java
@@ -0,0 +1,88 @@
+/*******************************************************************************
+ * Copyright (c) 2008 Wind River Systems 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.ui.viewmodel.numberformat;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.eclipse.cdt.dsf.debug.service.IFormattedValues;
+import org.eclipse.cdt.dsf.debug.ui.viewmodel.IDebugVMConstants;
+import org.eclipse.cdt.dsf.debug.ui.viewmodel.actions.VMHandlerUtils;
+import org.eclipse.cdt.dsf.ui.viewmodel.IVMContext;
+import org.eclipse.cdt.dsf.ui.viewmodel.IVMProvider;
+import org.eclipse.core.expressions.PropertyTester;
+import org.eclipse.debug.ui.IDebugView;
+import org.eclipse.ui.IWorkbenchPart;
+
+/**
+ * Property tester for number format information available through the given 
+ * object.  The object being tested should be either an {@link IVMContext}, 
+ * through which an instance of {@link IVMProvider} could be obtained.
+ * Or it could be an {@link IWorkbenchPart}, which is tested to see if it
+ * is a debug view through which a caching VM provider can be obtained.  
+ * The view's presentation context is used to test the given property.
+ * <p>
+ * Three properties are supported:
+ * <ul>
+ * <li> "areNumberFormatsSupported" - Checks whether number formats are 
+ * available at all given the receiver.</li>
+ * <li> "isNumberFormatAvailable" - Checks whether the number format ID in the 
+ * expected value is available for the given receiver.</li>
+ * <li> "isNumberFormatActive" - Checks whether the number format ID in the expected 
+ * value is the currently active number format for the given receiver.</li>
+ * </ul>
+ * </p>
+ */
+@SuppressWarnings("restriction")
+public class NumberFormatsPropertyTester extends PropertyTester {
+
+    private static final String SUPPORTED = "areNumberFormatsSupported"; //$NON-NLS-1$
+    private static final String AVAILABLE = "isNumberFormatAvailable"; //$NON-NLS-1$
+    private static final String ACTIVE = "isNumberFormatActive"; //$NON-NLS-1$
+
+    private static final List<String> AVAILABLE_FORMATS = new ArrayList<String>();
+    static {
+        AVAILABLE_FORMATS.add(IFormattedValues.NATURAL_FORMAT);
+        AVAILABLE_FORMATS.add(IFormattedValues.HEX_FORMAT);
+        AVAILABLE_FORMATS.add(IFormattedValues.DECIMAL_FORMAT);
+        AVAILABLE_FORMATS.add(IFormattedValues.OCTAL_FORMAT);
+        AVAILABLE_FORMATS.add(IFormattedValues.BINARY_FORMAT);
+        AVAILABLE_FORMATS.add(IFormattedValues.STRING_FORMAT);
+    };
+    
+    public boolean test(Object receiver, String property, Object[] args, Object expectedValue) {
+        if (receiver instanceof IVMContext) {
+            IVMProvider provider = ((IVMContext)receiver).getVMNode().getVMProvider();
+            if (provider != null) {
+                return testProvider(provider, property, expectedValue);
+            }
+        } else if (receiver instanceof IDebugView) {
+            IVMProvider provider = VMHandlerUtils.getVMProviderForPart((IDebugView)receiver);
+            if (provider != null) {
+                return testProvider(provider, property, expectedValue);                    
+            }
+        }
+        return false;
+    }
+
+    private boolean testProvider(IVMProvider provider, String property, Object expectedValue) {
+        if (SUPPORTED.equals(property)) {
+            return true;
+        } else if (AVAILABLE.equals(property)) {
+            return AVAILABLE_FORMATS.contains(expectedValue);
+        } else if (ACTIVE.equals(property)) {
+            Object activeId = provider.getPresentationContext().getProperty(IDebugVMConstants.CURRENT_FORMAT_STORAGE);
+            return expectedValue != null && expectedValue.equals(activeId);
+        } 
+        return false;
+    }
+    
+}