bundles/org.simantics.g2d/src/org/simantics/g2d/elementclass/ShapeClass.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.g2d.elementclass;
  13
  14 import java.awt.BasicStroke;
  15 import java.awt.Color;
  16 import java.awt.Shape;
  17 import java.awt.geom.AffineTransform;
  18 import java.awt.geom.Ellipse2D;
  19 import java.awt.geom.Rectangle2D;
  20
  21 import org.simantics.g2d.element.ElementClass;
  22 import org.simantics.g2d.element.ElementUtils;
  23 import org.simantics.g2d.element.IElement;
  24 import org.simantics.g2d.element.SceneGraphNodeKey;
  25 import org.simantics.g2d.element.handler.InternalSize;
  26 import org.simantics.g2d.element.handler.Outline;
  27 import org.simantics.g2d.element.handler.SceneGraph;
  28 import org.simantics.g2d.element.handler.impl.BorderColorImpl;
  29 import org.simantics.g2d.element.handler.impl.DefaultTransform;
  30 import org.simantics.g2d.element.handler.impl.FillColorImpl;
  31 import org.simantics.g2d.element.handler.impl.TextImpl;
  32 import org.simantics.g2d.element.handler.impl.TextPainter;
  33 import org.simantics.g2d.elementclass.wheel.RotatorHandler;
  34 import org.simantics.scenegraph.Node;
  35 import org.simantics.scenegraph.g2d.G2DParentNode;
  36 import org.simantics.scenegraph.g2d.nodes.ShapeNode;
  37 import org.simantics.utils.datastructures.hints.IHintContext.Key;
  38
  39 /**
  40  * @author Toni Kalajainen
  41  */
  42 public class ShapeClass {
  43
  44     final static BasicStroke STROKE = new BasicStroke(1.0f);
  45
  46     public static final ElementClass CIRCLE_CLASS = getShapeClass(new Ellipse2D.Double(-10, -10, 20, 20));
  47
  48     public static ElementClass getShapeClass(Shape s)
  49     {
  50         return
  51         ElementClass.compile(
  52                 DefaultTransform.INSTANCE,
  53                 BorderColorImpl.BLACK,
  54                 FillColorImpl.WHITE,
  55                 TextImpl.INSTANCE,
  56                 new ShapePainter(s),
  57                 new TextPainter(),
  58                 new RotatorHandler()
  59         );
  60
  61     }
  62
  63     static class ShapePainter implements SceneGraph, Outline, InternalSize
  64     {
  65         /**
  66          *
  67          */
  68         private static final long serialVersionUID = 2328124349273536527L;
  69         Shape shape;
  70         Rectangle2D bounds;
  71
  72         public static final Key SG_NODE = new SceneGraphNodeKey(Node.class, "SUB_SG_NODE");
  73
  74         public ShapePainter(Shape shape) {
  75             this.shape = shape;
  76             this.bounds = shape.getBounds2D();
  77         }
  78
  79         @Override
  80         public void cleanup(IElement e) {
  81             Node node = e.removeHint(SG_NODE);
  82             if (node != null)
  83                 node.remove();
  84         }
  85
  86         @Override
  87         public void init(IElement e, G2DParentNode parent) {
  88             G2DParentNode node = (G2DParentNode) e.getHint(SG_NODE);
  89             if (node == null) {
  90                 node = parent.addNode(G2DParentNode.class);
  91                 e.setHint(SG_NODE, node);
  92             }
  93                         AffineTransform at      = ElementUtils.getTransform(e);
  94                         if(at != null) node.setTransform(at);
  95
  96             ShapeNode bgnode = node.getOrCreateNode("bgnode", ShapeNode.class);
  97             ShapeNode fgnode = node.getOrCreateNode("fgnode", ShapeNode.class);
  98
  99             Color fc = ElementUtils.getFillColor(e);
 100             Color bc = ElementUtils.getBorderColor(e);
 101
 102             fgnode.setColor(fc);
 103             fgnode.setFill(true);
 104             fgnode.setShape(shape);
 105
 106             bgnode.setColor(bc);
 107             bgnode.setStroke(STROKE);
 108             bgnode.setScaleStroke(true);
 109             bgnode.setShape(shape);
 110         }
 111
 112         @Override
 113         public Shape getElementShape(IElement e) {
 114             return shape;
 115         }
 116
 117         @Override
 118         public Rectangle2D getBounds(IElement e, Rectangle2D size) {
 119             if (size==null) size = new Rectangle2D.Double();
 120             size.setFrame(bounds);
 121             return size;
 122         }
 123     }
 124 }