Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.diagram / src / org / simantics / diagram / synchronization / graph / TransformSynchronizer.java

diff --git a/bundles/org.simantics.diagram/src/org/simantics/diagram/synchronization/graph/TransformSynchronizer.java b/bundles/org.simantics.diagram/src/org/simantics/diagram/synchronization/graph/TransformSynchronizer.java
new file mode 100644 (file)
index 0000000..2ca6797
--- /dev/null
+++ b/bundles/org.simantics.diagram/src/org/simantics/diagram/synchronization/graph/TransformSynchronizer.java
@@ -0,0 +1,66 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.diagram.synchronization.graph;\r
+\r
+import java.awt.geom.AffineTransform;\r
+import java.awt.geom.Rectangle2D;\r
+\r
+import org.simantics.databoard.Bindings;\r
+import org.simantics.db.Resource;\r
+import org.simantics.diagram.synchronization.IModificationQueue;\r
+import org.simantics.diagram.synchronization.ISynchronizationContext;\r
+import org.simantics.g2d.element.ElementHints;\r
+import org.simantics.utils.datastructures.hints.IHintObservable;\r
+import org.simantics.utils.datastructures.hints.IHintContext.Key;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class TransformSynchronizer extends ResourceSynchronizer {\r
+\r
+    public static final TransformSynchronizer INSTANCE = new TransformSynchronizer();\r
+\r
+    private static final Key[] SYNCHRONIZED_HINTS = {\r
+        ElementHints.KEY_TRANSFORM,\r
+        ElementHints.KEY_BOUNDS\r
+    };\r
+\r
+    @Override\r
+    public Key[] getSynchronizedHints() {\r
+        return SYNCHRONIZED_HINTS;\r
+    }\r
+\r
+    @Override\r
+    public boolean hintChanged(ISynchronizationContext context, IModificationQueue queue, Resource object, IHintObservable sender, Key key, Object oldValue, Object newValue) {\r
+       if(newValue == null) return false;\r
+       if (ElementHints.KEY_TRANSFORM.equals(key)) {\r
+            BasicResources br = context.get(GraphSynchronizationHints.BASIC_RESOURCES);\r
+\r
+            final double[] flatmatrix = new double[6];\r
+            ((AffineTransform) newValue).getMatrix(flatmatrix);\r
+\r
+            return queue.offer(new PropertyModification(object, br.DIA.HasTransform, br.G2D.Transform, flatmatrix, Bindings.DOUBLE_ARRAY), null);\r
+        } else if (ElementHints.KEY_BOUNDS.equals(key)) {\r
+            BasicResources br = context.get(GraphSynchronizationHints.BASIC_RESOURCES);\r
+\r
+            final double[] flatmatrix = new double[4];\r
+            flatmatrix[0] = ((Rectangle2D)newValue).getMinX();\r
+            flatmatrix[1] = ((Rectangle2D)newValue).getMinY();\r
+            flatmatrix[2] = ((Rectangle2D)newValue).getWidth();\r
+            flatmatrix[3] = ((Rectangle2D)newValue).getHeight();\r
+            return queue.offer(new PropertyModification(object, br.G2D.HasBounds, br.G2D.Rectangle2D, flatmatrix, Bindings.DOUBLE_ARRAY), null);\r
+        }\r
+        \r
+        return false;\r
+    }\r
+\r
+}\r