bundles/org.simantics.diagram.connection/tests/org/simantics/diagram/connection/tests/actions/HighlightReconnectPointsAction.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2011 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.diagram.connection.tests.actions;\r
  13 \r
  14 import java.awt.Graphics2D;\r
  15 import java.awt.geom.Line2D;\r
  16 \r
  17 import org.simantics.diagram.connection.RouteGraph;\r
  18 import org.simantics.diagram.connection.RouteLineHalf;\r
  19 import org.simantics.diagram.connection.actions.IAction;\r
  20 import org.simantics.diagram.connection.rendering.IRouteGraphRenderer;\r
  21 \r
  22 public class HighlightReconnectPointsAction implements IAction {\r
  23 \r
  24     public static final double DEGENERATED_LINE_LENGTH = 0.8;\r
  25     public static final double CROSS_SIZE = 0.5;\r
  26 \r
  27     RouteGraph rg;\r
  28     double crossSize;\r
  29 \r
  30     public HighlightReconnectPointsAction(RouteGraph rg) {\r
  31         this(rg, CROSS_SIZE);\r
  32     }\r
  33 \r
  34     public HighlightReconnectPointsAction(RouteGraph rg, double crossSize) {\r
  35         this.rg = rg;\r
  36         this.crossSize = crossSize;\r
  37     }\r
  38 \r
  39     @Override\r
  40     public void render(Graphics2D g, IRouteGraphRenderer renderer, double mouseX, double mouseY) {\r
  41         renderer.render(g, rg);\r
  42         for(RouteLineHalf lh : rg.getLineHalves()) {\r
  43             if(lh.getLine().getLength() < DEGENERATED_LINE_LENGTH)\r
  44                 continue;\r
  45             double x = lh.getLink().getX();\r
  46             double y = lh.getLink().getY();\r
  47             if(lh.getLine().isHorizontal()) {\r
  48                 if(lh.getLink() == lh.getLine().getBegin())\r
  49                     x += crossSize*2;\r
  50                 else\r
  51                     x -= crossSize*2;\r
  52             }\r
  53             else {\r
  54                 if(lh.getLink() == lh.getLine().getBegin())\r
  55                     y += crossSize*2;\r
  56                 else\r
  57                     y -= crossSize*2;\r
  58             }\r
  59             g.draw(new Line2D.Double(x-crossSize,y-crossSize,x+crossSize,y+crossSize));\r
  60             g.draw(new Line2D.Double(x-crossSize,y+crossSize,x+crossSize,y-crossSize));\r
  61         }\r
  62     }\r
  63 \r
  64 }\r