X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.browsing.ui%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2FExplorerState.java;fp=bundles%2Forg.simantics.browsing.ui%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2FExplorerState.java;h=ea513a0bc73faf2a927780ab34975d09f1b63f41;hp=0000000000000000000000000000000000000000;hb=969bd23cab98a79ca9101af33334000879fb60c5;hpb=866dba5cd5a3929bbeae85991796acb212338a08

diff --git a/bundles/org.simantics.browsing.ui/src/org/simantics/browsing/ui/ExplorerState.java b/bundles/org.simantics.browsing.ui/src/org/simantics/browsing/ui/ExplorerState.java
new file mode 100644
index 000000000..ea513a0bc
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui/src/org/simantics/browsing/ui/ExplorerState.java
@@ -0,0 +1,82 @@
+/*******************************************************************************
+ * Copyright (c) 2013 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:
+ *     Semantum Oy - initial API and implementation
+ *******************************************************************************/
+package org.simantics.browsing.ui;
+
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Map;
+
+/**
+ * @author Tuukka Lehtonen <tuukka.lehtonen@semantum.fi>
+ */
+public class ExplorerState {
+
+	/**
+	 * Default value for empty {@link #topNodePathChildIndex}.
+	 */
+	private static final int[] NO_CHILD_INDEXES = {};
+
+	/**
+	 * Empty default value for ExplorerState.
+	 */
+	public static final ExplorerState EMPTY = new ExplorerState(
+			NodeContext.NONE, NO_CHILD_INDEXES,
+			Collections.<NodeContext> emptyList(),
+			Collections.<String, Integer> emptyMap());
+
+	/**
+	 * An empty array of no top node path is set.
+	 * @see NodeContext#NONE
+	 */
+	public final NodeContext[] topNodePath;
+
+	/**
+	 * Tells the child index of each node in {@link #topNodePath}. 
+	 * Must be the same size as {@link #topNodePath}.
+	 */
+	public final int[] topNodePathChildIndex;
+
+	/**
+	 * All the expanded nodes in the explorer. Never <code>null</code>.
+	 */
+	public final Collection<NodeContext> expandedNodes;
+
+	/**
+	 * Widths of columns.
+	 */
+	public final Map<String, Integer> columnWidths;
+
+	/**
+	 * @param topNodePath
+	 * @param topNodePathChildIndex
+	 * @param expandedNodes
+	 * @param columnWidths 
+	 */
+	public ExplorerState(NodeContext[] topNodePath, int[] topNodePathChildIndex, Collection<NodeContext> expandedNodes, Map<String, Integer> columnWidths) {
+		if (expandedNodes == null)
+			throw new IllegalArgumentException("null expanded nodes");
+		this.topNodePath = topNodePath;
+		this.topNodePathChildIndex = topNodePathChildIndex;
+		this.expandedNodes = expandedNodes;
+		this.columnWidths = columnWidths;
+	}
+
+	@Override
+	public String toString() {
+		return getClass().getSimpleName() + "[topNodePath="
+				+ Arrays.toString(topNodePath) + ", topNodePathChildIndex="
+				+ Arrays.toString(topNodePathChildIndex) + ", expandedNodes="
+				+ expandedNodes + ", " + columnWidths + "]";
+	}
+
+}