Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.diagram / src / org / simantics / diagram / adapter / ConstantStyle.java

diff --git a/bundles/org.simantics.diagram/src/org/simantics/diagram/adapter/ConstantStyle.java b/bundles/org.simantics.diagram/src/org/simantics/diagram/adapter/ConstantStyle.java
new file mode 100644 (file)
index 0000000..a70eb45
--- /dev/null
+++ b/bundles/org.simantics.diagram/src/org/simantics/diagram/adapter/ConstantStyle.java
@@ -0,0 +1,137 @@
+/*******************************************************************************\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.adapter;\r
+\r
+import java.awt.AlphaComposite;\r
+import java.awt.Color;\r
+import java.util.HashMap;\r
+import java.util.Map;\r
+\r
+import org.simantics.databoard.Bindings;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.RequestProcessor;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.diagram.profile.ProfileKeys;\r
+import org.simantics.diagram.stubs.DiagramResource;\r
+import org.simantics.g2d.canvas.ICanvasContext;\r
+import org.simantics.layer0.Layer0;\r
+import org.simantics.scenegraph.INode;\r
+import org.simantics.scenegraph.profile.DataNodeMap;\r
+import org.simantics.scenegraph.profile.EvaluationContext;\r
+import org.simantics.scenegraph.profile.Group;\r
+import org.simantics.scenegraph.profile.Style;\r
+import org.simantics.scenegraph.profile.common.ObserverGroupListener;\r
+import org.simantics.scenegraph.profile.common.ProfileVariables;\r
+\r
+public class ConstantStyle implements Style {\r
+\r
+    final String name;\r
+    final Map<String, Object> values = new HashMap<String, Object>();\r
+    ObserverGroupListener listener = null;\r
+\r
+    public ConstantStyle(ReadGraph graph, Resource style) throws DatabaseException {\r
+        Layer0 L0 = Layer0.getInstance(graph);\r
+        DiagramResource DIA = DiagramResource.getInstance(graph);\r
+        this.name = graph.getPossibleRelatedValue(style, L0.HasName, Bindings.STRING);\r
+        String[] values = graph.getPossibleRelatedValue(style, DIA.HasValues, Bindings.getBindingUnchecked(String[].class));\r
+        for(int i=0;i<values.length;i+=2) {\r
+            String key  = values[i];\r
+            Object value = haxx(key, values[i+1]);\r
+            this.values.put(key, value);\r
+        }\r
+    }\r
+\r
+    private Object haxx(String key, Object value) {\r
+        if("alpha".equals(key)) {\r
+            return AlphaComposite.getInstance(AlphaComposite. SRC_OVER, Float.parseFloat((String)value));\r
+        } else if("color".equals(key)) {\r
+            return new Color(Integer.parseInt(value.toString(), 16));\r
+        } else {\r
+            return value;\r
+        }\r
+    }\r
+\r
+    @Override\r
+    public void deactivate(Resource diagram, Resource entry, Group group,\r
+               EvaluationContext observer) {\r
+        if (listener != null && !listener.isDisposed()) {\r
+            listener.dispose();\r
+            values.clear();\r
+            observer.update();\r
+        }\r
+    }\r
+\r
+    @Override\r
+    public void activate(RequestProcessor backend, Resource diagram, Resource entry, Group group, final EvaluationContext observer) {\r
+\r
+        if (listener != null && !listener.isDisposed())\r
+            return;\r
+\r
+        listener = new ObserverGroupListener(this, group, observer);\r
+\r
+        group.trackItems(backend, diagram, listener);\r
+\r
+    }\r
+\r
+    @Override\r
+    public void apply(Resource entry, Group group, final EvaluationContext evaluationContext) {\r
+\r
+//        throw new UnsupportedOperationException();\r
+        \r
+//        IDiagram diagram = evaluationContext.getConstant(ProfileKeys.DIAGRAM);\r
+        ICanvasContext context = evaluationContext.getConstant(ProfileKeys.CANVAS);\r
+        \r
+        assert context.getThreadAccess().currentThreadAccess();\r
+\r
+        if(listener == null) {\r
+            System.out.println("ConstantStyle " + this + " was not active in apply!");\r
+            return;\r
+        }\r
+\r
+        final DataNodeMap map = evaluationContext.getConstant(ProfileKeys.NODE_MAP);\r
+        \r
+//        DataElementMap map = diagram.getDiagramClass().getSingleItem(DataElementMap.class);\r
+\r
+        for(Map.Entry<String, Object> value : values.entrySet()) {\r
+\r
+            for(Object item : listener.getItems()) {\r
+\r
+                final INode node = map.getNode(item);\r
+                \r
+//                final IElement element = map.getElement(diagram, item);\r
+                if(node == null) {\r
+                    //observer.exception(new NullPointerException("ConstantStyle.apply: no element for " + item));\r
+                    evaluationContext.update();\r
+                    return;\r
+                }\r
+\r
+                ProfileVariables.claimNodeProperty(node, value.getKey(), value.getValue(), evaluationContext);\r
+                \r
+////                System.out.println("apply[" + element + "]: " + value.getKey() + " => " + value.getValue());\r
+//                Variables.set(node, value.getKey(), value.getValue(), evaluationContext);\r
+//\r
+//                PropertySetter setter = element.getElementClass().getAtMostOneItemOfClass(PropertySetter.class);\r
+//                if(setter != null)\r
+//                    setter.syncPropertiesToNode(element);\r
+                \r
+            }\r
+        }\r
+\r
+    }\r
+\r
+    @Override\r
+    public String toString() {\r
+        return name;\r
+    }\r
+\r
+}\r