diff dwtx/draw2d/graph/CompoundVerticalPlacement.d @ 98:95307ad235d9

Added Draw2d code, still work in progress
author Frank Benoit <benoit@tionex.de>
date Sun, 03 Aug 2008 00:52:14 +0200
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwtx/draw2d/graph/CompoundVerticalPlacement.d	Sun Aug 03 00:52:14 2008 +0200
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+/*******************************************************************************
+ * Copyright (c) 2003, 2005 IBM Corporation 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:
+ *     IBM Corporation - initial API and implementation
+ * Port to the D programming language:
+ *     Frank Benoit <benoit@tionex.de>
+ *******************************************************************************/
+module dwtx.draw2d.graph.CompoundVerticalPlacement;
+
+import dwt.dwthelper.utils;
+import dwtx.draw2d.graph.DirectedGraph;
+import dwtx.draw2d.graph.VerticalPlacement;
+import dwtx.draw2d.graph.CompoundDirectedGraph;
+import dwtx.draw2d.graph.Subgraph;
+
+/**
+ * calculates the height and y-coordinates for nodes and subgraphs in a compound directed
+ * graph.
+ * @author Randy Hudson
+ * @since 2.1.2
+ */
+class CompoundVerticalPlacement : VerticalPlacement {
+
+/**
+ * @see GraphVisitor#visit(DirectedGraph)
+ * Extended to set subgraph values.
+ */
+void visit(DirectedGraph dg) {
+    CompoundDirectedGraph g = cast(CompoundDirectedGraph)dg;
+    super.visit(g);
+    for (int i = 0; i < g.subgraphs.size(); i++) {
+        Subgraph s = cast(Subgraph)g.subgraphs.get(i);
+        s.y = s.head.y;
+        s.height = s.tail.height + s.tail.y - s.y;
+    }
+}
+
+}