FlowchartDataPainter.java |
1 /**************************************************************************** 2 * This demo file is part of yFiles for Java 2.14. 3 * Copyright (c) 2000-2017 by yWorks GmbH, Vor dem Kreuzberg 28, 4 * 72070 Tuebingen, Germany. All rights reserved. 5 * 6 * yFiles demo files exhibit yFiles for Java functionalities. Any redistribution 7 * of demo files in source code or binary form, with or without 8 * modification, is not permitted. 9 * 10 * Owners of a valid software license for a yFiles for Java version that this 11 * demo is shipped with are allowed to use the demo source code as basis 12 * for their own yFiles for Java powered applications. Use of such programs is 13 * governed by the rights and conditions as set out in the yFiles for Java 14 * license agreement. 15 * 16 * THIS SOFTWARE IS PROVIDED ''AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 19 * NO EVENT SHALL yWorks BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 21 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 22 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 23 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 24 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 ***************************************************************************/ 28 package demo.view.flowchart.painters; 29 30 import y.view.NodeRealizer; 31 import y.view.GenericNodeRealizer; 32 33 import java.awt.Shape; 34 import java.awt.geom.GeneralPath; 35 36 /** 37 * Draws the data symbol of flowchart diagrams. 38 */ 39 public class FlowchartDataPainter extends AbstractFlowchartPainter { 40 protected Shape newShape( NodeRealizer context ) { 41 double x = context.getX(); 42 double y = context.getY(); 43 double height = context.getHeight(); 44 double width = context.getWidth(); 45 46 double inclination = Math.min(getInclination(context, FLOWCHART_DEFAULT_DATA_INCLINATION), 0.5); 47 double borderDistance = inclination * Math.min(width, height); 48 49 GeneralPath shapePath = new GeneralPath(); 50 shapePath.moveTo((float)(x + borderDistance), (float)y); 51 shapePath.lineTo((float)(x + width), (float)y); 52 shapePath.lineTo((float)(x + width - borderDistance), (float)(y + height)); 53 shapePath.lineTo((float)x, (float)(y + height)); 54 shapePath.closePath(); 55 return shapePath; 56 } 57 58 protected double getInclination( NodeRealizer context, double defaultValue ) { 59 GenericNodeRealizer gnr = (GenericNodeRealizer) context; 60 Object value = gnr.getStyleProperty(PROPERTY_INCLINATION); 61 if (value instanceof Number) { 62 return ((Number) value).doubleValue(); 63 } else { 64 return defaultValue; 65 } 66 } 67 } 68