X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.browsing.ui.swt%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2Fswt%2FPropertyIsExpandedProcessor.java;fp=bundles%2Forg.simantics.browsing.ui.swt%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2Fswt%2FPropertyIsExpandedProcessor.java;h=4560238aed65b5f1ae24d8d48b32683756975301;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git diff --git a/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/PropertyIsExpandedProcessor.java b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/PropertyIsExpandedProcessor.java new file mode 100644 index 000000000..4560238ae --- /dev/null +++ b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/PropertyIsExpandedProcessor.java @@ -0,0 +1,131 @@ +/******************************************************************************* + * Copyright (c) 2007, 2012 Association for Decentralized Information Management + * in Industry THTH ry. + * 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: + * VTT Technical Research Centre of Finland - initial API and implementation + *******************************************************************************/ +package org.simantics.browsing.ui.swt; + +import java.util.Map; +import java.util.Set; +import java.util.TreeMap; +import java.util.TreeSet; + +import org.simantics.browsing.ui.BuiltinKeys; +import org.simantics.browsing.ui.NodeContext; +import org.simantics.browsing.ui.NodeContext.PrimitiveQueryKey; +import org.simantics.browsing.ui.PrimitiveQueryUpdater; +import org.simantics.browsing.ui.common.property.IProperty; +import org.simantics.browsing.ui.common.property.PropertyComparable; +import org.simantics.browsing.ui.common.property.PropertyComparator; +import org.simantics.utils.strings.EString; +import org.simantics.utils.ui.AdaptionUtils; + +/** + * A custom processor implementation for the {@link BuiltinKeys#IS_EXPANDED} + * primitive query that specially handles all {@link NodeContext}s that contain + * {@link PropertyComparable} inputs. + * + *
+ * This class is needed because default values for properties are generally
+ * asserted and adding instance properties for subjects with default values
+ * causes the data contained by IProperty instances to change. For this reason
+ * {@link PropertyComparable} contains two methods:
+ * {@link IProperty#propertyHashCode()} and
+ * {@link PropertyComparable#propertyEquals(Object)} for comparing whether
+ * two {@link PropertyComparable} instances represent the same property of the
+ * same subject, regardless of the property value. This allows the UI to
+ * correctly expand tree nodes for record-type and array-valued properties when
+ * the value changes from asserted to direct or vice versa.
+ *
+ * @author Tuukka Lehtonen
+ *
+ * @see BuiltinKeys#IS_EXPANDED
+ * @see IProperty
+ * @see PropertyComparator
+ */
+public class PropertyIsExpandedProcessor extends DefaultIsExpandedProcessor {
+
+ private static final boolean DEBUG = false;
+
+ private final Set