Source Code Cross Referenced for QuadraticGanttLinkRouting.java in  » Project-Management » OpenProj » com » projity » pm » graphic » gantt » link_routing » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Project Management » OpenProj » com.projity.pm.graphic.gantt.link_routing 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:        The contents of this file are subject to the Common Public Attribution License 
003:        Version 1.0 (the "License"); you may not use this file except in compliance with 
004:        the License. You may obtain a copy of the License at 
005:        http://www.projity.com/license . The License is based on the Mozilla Public 
006:        License Version 1.1 but Sections 14 and 15 have been added to cover use of 
007:        software over a computer network and provide for limited attribution for the 
008:        Original Developer. In addition, Exhibit A has been modified to be consistent 
009:        with Exhibit B.
010:
011:        Software distributed under the License is distributed on an "AS IS" basis, 
012:        WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the 
013:        specific language governing rights and limitations under the License. The 
014:        Original Code is OpenProj. The Original Developer is the Initial Developer and 
015:        is Projity, Inc. All portions of the code written by Projity are Copyright (c) 
016:        2006, 2007. All Rights Reserved. Contributors Projity, Inc.
017:
018:        Alternatively, the contents of this file may be used under the terms of the 
019:        Projity End-User License Agreeement (the Projity License), in which case the 
020:        provisions of the Projity License are applicable instead of those above. If you 
021:        wish to allow use of your version of this file only under the terms of the 
022:        Projity License and not to allow others to use your version of this file under 
023:        the CPAL, indicate your decision by deleting the provisions above and replace 
024:        them with the notice and other provisions required by the Projity  License. If 
025:        you do not delete the provisions above, a recipient may use your version of this 
026:        file under either the CPAL or the Projity License.
027:
028:        [NOTE: The text of this license may differ slightly from the text of the notices 
029:        in Exhibits A and B of the license at http://www.projity.com/license. You should 
030:        use the latest text at http://www.projity.com/license for your modifications.
031:        You may not remove this license text from the source files.]
032:
033:        Attribution Information: Attribution Copyright Notice: Copyright © 2006, 2007 
034:        Projity, Inc. Attribution Phrase (not exceeding 10 words): Powered by OpenProj, 
035:        an open source solution from Projity. Attribution URL: http://www.projity.com 
036:        Graphic Image as provided in the Covered Code as file:  openproj_logo.png with 
037:        alternatives listed on http://www.projity.com/logo
038:
039:        Display of Attribution Information is required in Larger Works which are defined 
040:        in the CPAL as a work which combines Covered Code or portions thereof with code 
041:        not governed by the terms of the CPAL. However, in addition to the other notice 
042:        obligations, all copies of the Covered Code in Executable and Source Code form 
043:        distributed must, as a form of attribution of the original author, include on 
044:        each user interface screen the "OpenProj" logo visible to all users.  The 
045:        OpenProj logo should be located horizontally aligned with the menu bar and left 
046:        justified on the top left of the screen adjacent to the File menu.  The logo 
047:        must be at least 100 x 25 pixels.  When users click on the "OpenProj" logo it 
048:        must direct them back to http://www.projity.com.  
049:         */
050:        package com.projity.pm.graphic.gantt.link_routing;
051:
052:        import java.awt.geom.GeneralPath;
053:
054:        import com.projity.pm.dependency.DependencyType;
055:
056:        /**
057:         *
058:         */
059:        public class QuadraticGanttLinkRouting extends GanttLinkRouting {
060:            private static final long serialVersionUID = -1617695945785858247L;
061:
062:            public void routePath(GeneralPath path, double x0, double y0,
063:                    double x1, double y1, double y2, double y1floor,
064:                    double y1ceil, int type) {
065:                this .path = path;
066:                int fromSign = (type == DependencyType.SF || type == DependencyType.SS) ? -1
067:                        : 1;
068:                int toSign = (type == DependencyType.FS || type == DependencyType.SS) ? -1
069:                        : 1;
070:
071:                double fromDeltaX = 5.0;
072:                double toDeltaX = 15.0;
073:                double maxDeltaXVerticalArrow = 20;
074:                double deltaQ = 10;
075:                double deltaXb = Math.min(deltaQ, Math.abs(y1 - y0) / 2);
076:                double signY = (y1 >= y0) ? 1 : -1;
077:
078:                double x2 = x0 + fromSign * fromDeltaX;
079:                double x2b = x2 + fromSign * 2 * deltaXb;
080:                double x3 = x1 + toSign * toDeltaX;
081:                double x3b = x3 + toSign * 2 * deltaXb;
082:                double x2bb = (x2b + x2) / 2;
083:                double x3bb = (x3b + x3) / 2;
084:
085:                double y0b = y0 + signY * deltaXb;
086:                double y1b = y1 - signY * deltaXb;
087:                double y0bb = y0 + signY
088:                        * Math.min(deltaQ, Math.abs(y2 - y0) / 2);
089:                double y1bb = y1 - signY
090:                        * Math.min(deltaQ, Math.abs(y1 - y2) / 2);
091:                double y2b0 = y2 - signY
092:                        * Math.min(deltaQ, Math.abs(y2 - y0) / 2);
093:                double y2b1 = y2 + signY
094:                        * Math.min(deltaQ, Math.abs(y1 - y2) / 2);
095:
096:                resetLinkPoints();
097:                addLinkPoint(x0, y0);
098:                if (type == DependencyType.FS && verticalArrow
099:                        && x1 + maxDeltaXVerticalArrow >= x2bb) {
100:                    double x4 = Math.max(x1, x2bb);
101:                    double x4b = x4 - deltaXb;
102:                    addLinkPoint(x4b, y0);
103:                    addLinkPoint(x4, y0, false);
104:                    addLinkPoint(x4, y0b, false);
105:                    quad();
106:                    addLinkPoint(x4, (y1 >= y0) ? y1ceil : y1floor);
107:                    return;
108:                }
109:                switch (type) {
110:                case DependencyType.FS:
111:                case DependencyType.SF:
112:                    if (type == DependencyType.FS && x3 >= x2 || x3 <= x2
113:                            && type == DependencyType.SF) {
114:                        addLinkPoint(x3b, y0);
115:                        addLinkPoint(x3bb, y0, false);
116:                        addLinkPoint(x3bb, y0b, false);
117:                        quad();
118:                        if (y0b != y1b)
119:                            addLinkPoint(x3bb, y1b);
120:                        addLinkPoint(x3bb, y1, false);
121:                        addLinkPoint(x3, y1, false);
122:                        quad();
123:                    } else {
124:                        addLinkPoint(x2, y0);
125:                        addLinkPoint(x2bb, y0, false);
126:                        addLinkPoint(x2bb, y0bb, false);
127:                        quad();
128:                        if (y0bb != y2b0)
129:                            addLinkPoint(x2bb, y2b0);
130:                        addLinkPoint(x2bb, y2, false);
131:                        addLinkPoint(x2, y2, false);
132:                        quad();
133:                        addLinkPoint(x3, y2);
134:                        addLinkPoint(x3bb, y2, false);
135:                        addLinkPoint(x3bb, y2b1, false);
136:                        quad();
137:                        if (y1bb != y2b1)
138:                            addLinkPoint(x3bb, y1bb);
139:                        addLinkPoint(x3bb, y1, false);
140:                        addLinkPoint(x3, y1, false);
141:                        quad();
142:                    }
143:                    break;
144:                case DependencyType.SS:
145:                case DependencyType.FF: {
146:                    double x5, x5b;
147:                    if (type == DependencyType.SS) {
148:                        x5 = (x2 < x3) ? x2 : x3;
149:                        x5b = (x2b < x3b) ? x2b : x3b;
150:                    } else {
151:                        x5 = (x2 > x3) ? x2 : x3;
152:                        x5b = (x2b > x3b) ? x2b : x3b;
153:                    }
154:                    double x5bb = (x5b + x5) / 2;
155:                    addLinkPoint(x5, y0);
156:                    addLinkPoint(x5bb, y0, false);
157:                    addLinkPoint(x5bb, y0b, false);
158:                    quad();
159:                    if (y0b != y1b)
160:                        addLinkPoint(x5bb, y1b);
161:                    addLinkPoint(x5bb, y1, false);
162:                    addLinkPoint(x5, y1, false);
163:                    quad();
164:                    break;
165:                }
166:                default:
167:                    return;
168:                }
169:                addLinkPoint(x1, y1);
170:            }
171:        }
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