bundles/org.simantics.modeling.template2d.ui/src/org/simantics/modeling/template2d/ui/diagram/adapter/DrawingTemplateStyle.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2012 Association for Decentralized Information Management in\r
   3  * Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.modeling.template2d.ui.diagram.adapter;\r
  13 \r
  14 import org.simantics.db.ReadGraph;\r
  15 import org.simantics.db.Resource;\r
  16 import org.simantics.db.exception.DatabaseException;\r
  17 import org.simantics.db.layer0.variable.Variable;\r
  18 import org.simantics.diagram.profile.StyleBase;\r
  19 import org.simantics.g2d.scenegraph.SceneGraphConstants;\r
  20 import org.simantics.modeling.template2d.ontology.Template2dResource;\r
  21 import org.simantics.modeling.template2d.ui.function.All;\r
  22 import org.simantics.scenegraph.INode;\r
  23 import org.simantics.scenegraph.g2d.G2DParentNode;\r
  24 import org.simantics.scenegraph.g2d.G2DSceneGraph;\r
  25 import org.simantics.scenegraph.g2d.nodes.SingleElementNode;\r
  26 import org.simantics.scenegraph.loader.ScenegraphLoaderProcess;\r
  27 import org.simantics.scenegraph.profile.DataNodeMap;\r
  28 import org.simantics.scenegraph.profile.EvaluationContext;\r
  29 import org.simantics.scenegraph.profile.common.ProfileVariables;\r
  30 \r
  31 \r
  32 public class DrawingTemplateStyle extends StyleBase<INode> {\r
  33 \r
  34         private static final String PAGE_TEMPLATE_NODE_NAME = "pageTemplate";\r
  35 \r
  36         private static Resource getTemplateScenegraph(ReadGraph graph, Resource runtimeDiagram) throws DatabaseException {\r
  37                 Template2dResource TEMPLATE2D = Template2dResource.getInstance(graph);\r
  38                 Resource template = All.getTemplate(graph, runtimeDiagram);\r
  39                 if (template == null)\r
  40                         return null;\r
  41                 return graph.getPossibleObject(template, TEMPLATE2D.HasScenegraph);\r
  42         }\r
  43 \r
  44         @Override\r
  45         public INode calculateStyle(ReadGraph graph, Resource runtimeDiagram, Resource entry, Resource groupItem, Variable activeComposite)\r
  46                         throws DatabaseException {\r
  47                 Resource sceneGraph = DrawingTemplateStyle.getTemplateScenegraph(graph, runtimeDiagram);\r
  48                 if (sceneGraph == null)\r
  49                         return null;\r
  50                 ScenegraphLoaderProcess loader = new ScenegraphLoaderProcess(new G2DParentNode(), "TemplateStyle.calculate");\r
  51                 return loader.load(graph, sceneGraph, runtimeDiagram);\r
  52         }\r
  53 \r
  54         @Override\r
  55         public void applyStyleForItem(EvaluationContext evaluationContext, DataNodeMap map, Object item, INode node) {\r
  56                 if (node == null)\r
  57                         return;\r
  58 \r
  59                 G2DSceneGraph sg = evaluationContext.getSceneGraph();\r
  60                 if (sg == null)\r
  61                         return;\r
  62                 G2DParentNode nav = (G2DParentNode) sg.getNode(SceneGraphConstants.NAVIGATION_NODE_NAME);\r
  63                 if (nav == null)\r
  64                         return;\r
  65 \r
  66                 SingleElementNode pageTemplate = ProfileVariables.claimChild(evaluationContext.getSceneGraph(),\r
  67                                 SceneGraphConstants.NAVIGATION_NODE_NAME, PAGE_TEMPLATE_NODE_NAME, SingleElementNode.class,\r
  68                                 evaluationContext);\r
  69 \r
  70                 if (pageTemplate == null)\r
  71                         return;\r
  72 \r
  73                 pageTemplate.setZIndex(1);\r
  74                 pageTemplate.setVisible(true);\r
  75 \r
  76                 // Switch template contents if the contents are not exactly the same.\r
  77                 INode previous = pageTemplate.getNode("structure");\r
  78                 if (previous != node) {\r
  79                         pageTemplate.detachNode("structure");\r
  80                         pageTemplate.attachNode("structure", node);\r
  81                 }\r
  82         }\r
  83 \r
  84         @Override\r
  85         protected void cleanupStyleForItem(EvaluationContext evaluationContext, DataNodeMap map, Object item) {\r
  86                 G2DSceneGraph sg = evaluationContext.getSceneGraph();\r
  87                 if (sg == null)\r
  88                         return;\r
  89                 G2DParentNode nav = (G2DParentNode) sg.getNode(SceneGraphConstants.NAVIGATION_NODE_NAME);\r
  90                 if (nav == null)\r
  91                         return;\r
  92 \r
  93                 G2DParentNode pageTemplate = (G2DParentNode) nav.getNode(PAGE_TEMPLATE_NODE_NAME);\r
  94                 if (pageTemplate == null)\r
  95                         return;\r
  96 \r
  97                 pageTemplate.detachNode("structure");\r
  98                 ProfileVariables.denyChild(evaluationContext.getSceneGraph(),\r
  99                                 SceneGraphConstants.NAVIGATION_NODE_NAME, PAGE_TEMPLATE_NODE_NAME);\r
 100         }\r
 101 \r
 102         @Override\r
 103         public String toString() {\r
 104                 return "Template";\r
 105         }\r
 106 \r
 107 }\r