Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.modeling.ui / src / org / simantics / modeling / ui / diagram / style / SymbolTerminalNameStyle.java

diff --git a/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagram/style/SymbolTerminalNameStyle.java b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagram/style/SymbolTerminalNameStyle.java
new file mode 100644 (file)
index 0000000..f98e829
--- /dev/null
+++ b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagram/style/SymbolTerminalNameStyle.java
@@ -0,0 +1,134 @@
+/*******************************************************************************\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.modeling.ui.diagram.style;\r
+\r
+import java.awt.Color;\r
+import java.awt.Font;\r
+import java.awt.geom.AffineTransform;\r
+\r
+import org.simantics.databoard.Bindings;\r
+import org.simantics.datatypes.literal.Vec2d;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.layer0.variable.Variable;\r
+import org.simantics.diagram.elements.TextNode;\r
+import org.simantics.diagram.profile.StyleBase;\r
+import org.simantics.diagram.synchronization.graph.DiagramGraphUtil;\r
+import org.simantics.g2d.utils.Alignment;\r
+import org.simantics.layer0.Layer0;\r
+import org.simantics.modeling.ModelingResources;\r
+import org.simantics.scenegraph.INode;\r
+import org.simantics.scenegraph.g2d.IG2DNode;\r
+import org.simantics.scenegraph.g2d.nodes.SingleElementNode;\r
+import org.simantics.scenegraph.profile.EvaluationContext;\r
+import org.simantics.scenegraph.profile.common.ProfileVariables;\r
+import org.simantics.scenegraph.utils.NodeUtil;\r
+import org.simantics.utils.datastructures.map.Tuple;\r
+\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class SymbolTerminalNameStyle extends StyleBase<SymbolNameResult> {\r
+\r
+    static final Font FONT = Font.decode("Arial 6");\r
+\r
+    private static final String NODE_NAME = "terminalName";\r
+\r
+    /**\r
+     * Must override the StyleBase implementation because terminals do not\r
+     * depend on runtime variable. They need to be shown regardless of variable\r
+     * existence.\r
+     */\r
+    @Override\r
+    public SymbolNameResult calculateStyle(ReadGraph graph, Resource runtimeDiagram, Resource entry, Resource groupItem) throws DatabaseException {\r
+        return calculateStyle(graph, runtimeDiagram, entry, groupItem, null);\r
+    }\r
+\r
+    @Override\r
+    public SymbolNameResult calculateStyle(ReadGraph graph, Resource runtimeDiagram, Resource entry, Resource element, Variable configuration) throws DatabaseException {\r
+\r
+        AffineTransform transform = DiagramGraphUtil.getAffineTransform(graph, element);\r
+\r
+        Layer0 L0 = Layer0.getInstance(graph);\r
+        ModelingResources MOD = ModelingResources.getInstance(graph);\r
+\r
+        Resource binds = DiagramGraphUtil.getPossibleConnectionPointOfTerminal(graph, element);\r
+        if (binds == null)\r
+            return null;\r
+\r
+        Resource conn = graph.getPossibleObject(binds, MOD.DiagramConnectionRelationToConnectionRelation);\r
+        String name = graph.getPossibleRelatedValue(conn, L0.HasName, Bindings.STRING);\r
+        if (conn == null || name == null)\r
+            return null;\r
+\r
+        return new SymbolNameResult(name, transform);\r
+\r
+    }\r
+\r
+    private AffineTransform translateAndScaleIfNeeded(AffineTransform tr, Vec2d offset, double scale) {\r
+       if(!offset.isZero() || scale != 1.0) {\r
+               tr = new AffineTransform(tr);\r
+               tr.translate(offset.x, offset.y);\r
+               tr.scale(scale, scale);\r
+       }\r
+       return tr;\r
+    }\r
+    \r
+    private AffineTransform getSymbolTransform(INode node, Vec2d offset, double size) {\r
+       if(node instanceof SingleElementNode) {\r
+               SingleElementNode s = (SingleElementNode)node;\r
+               INode symbol = NodeUtil.findChildByPrefix(s, "composite_image"); \r
+               return translateAndScaleIfNeeded(symbol != null ? ((IG2DNode)symbol).getTransform() : new AffineTransform(), offset, size);\r
+       }\r
+       return null;\r
+    }\r
+    \r
+    @Override\r
+    public void applyStyleForNode(EvaluationContext observer, INode _node, SymbolNameResult result) {\r
+       \r
+        if (result == null) {\r
+            ProfileVariables.denyChild(_node, "", NODE_NAME);\r
+            return;\r
+        }\r
+\r
+        TextNode node = ProfileVariables.claimChild(_node, "", NODE_NAME, TextNode.class, observer);\r
+\r
+        node.setZIndex( Integer.MAX_VALUE );\r
+        node.setTransform( getSymbolTransform(_node, new Vec2d(0, -1), 0.08) ); \r
+        node.setText(result.getName());\r
+        node.setHorizontalAlignment((byte)Alignment.CENTER.ordinal());\r
+        node.setBackgroundColor(Color.WHITE);\r
+        node.setPadding(0.2, 0);\r
+        \r
+    }\r
+\r
+    @Override\r
+    protected void cleanupStyleForNode(INode node) {\r
+        ProfileVariables.denyChild(node, "", NODE_NAME);\r
+    }\r
+\r
+}\r
+\r
+/**\r
+ * This is needed to keep the issue decoration up-to-date when its parent\r
+ * element moves.\r
+ */\r
+class SymbolNameResult extends Tuple {\r
+    public SymbolNameResult(String name, AffineTransform transform) {\r
+        super(name, transform);\r
+    }\r
+    public String getName() {\r
+        return (String) getField(0);\r
+    }\r
+}\r