-
Notifications
You must be signed in to change notification settings - Fork 68
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
correct #7 label of connection mislocation.
- Loading branch information
1 parent
b9bfc5e
commit 9fe7a1d
Showing
3 changed files
with
1,012 additions
and
0 deletions.
There are no files selected for viewing
227 changes: 227 additions & 0 deletions
227
src/main/java/com/mossle/bpm/support/CustomProcessDiagramGenerator.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,227 @@ | ||
| /* Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package com.mossle.bpm.support; | ||
|
|
||
| import org.activiti.engine.impl.bpmn.diagram.ProcessDiagramGenerator; | ||
| import org.activiti.engine.impl.bpmn.diagram.ProcessDiagramCanvas; | ||
|
|
||
| import java.io.InputStream; | ||
| import java.util.ArrayList; | ||
| import java.util.Collections; | ||
| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
|
|
||
| import org.activiti.bpmn.model.Activity; | ||
| import org.activiti.bpmn.model.BaseElement; | ||
| import org.activiti.bpmn.model.BoundaryEvent; | ||
| import org.activiti.bpmn.model.BpmnModel; | ||
| import org.activiti.bpmn.model.BusinessRuleTask; | ||
| import org.activiti.bpmn.model.CallActivity; | ||
| import org.activiti.bpmn.model.EndEvent; | ||
| import org.activiti.bpmn.model.ErrorEventDefinition; | ||
| import org.activiti.bpmn.model.EventGateway; | ||
| import org.activiti.bpmn.model.EventSubProcess; | ||
| import org.activiti.bpmn.model.ExclusiveGateway; | ||
| import org.activiti.bpmn.model.FlowElement; | ||
| import org.activiti.bpmn.model.FlowElementsContainer; | ||
| import org.activiti.bpmn.model.FlowNode; | ||
| import org.activiti.bpmn.model.Gateway; | ||
| import org.activiti.bpmn.model.GraphicInfo; | ||
| import org.activiti.bpmn.model.InclusiveGateway; | ||
| import org.activiti.bpmn.model.IntermediateCatchEvent; | ||
| import org.activiti.bpmn.model.Lane; | ||
| import org.activiti.bpmn.model.ManualTask; | ||
| import org.activiti.bpmn.model.MultiInstanceLoopCharacteristics; | ||
| import org.activiti.bpmn.model.ParallelGateway; | ||
| import org.activiti.bpmn.model.Pool; | ||
| import org.activiti.bpmn.model.Process; | ||
| import org.activiti.bpmn.model.ReceiveTask; | ||
| import org.activiti.bpmn.model.ScriptTask; | ||
| import org.activiti.bpmn.model.SendTask; | ||
| import org.activiti.bpmn.model.SequenceFlow; | ||
| import org.activiti.bpmn.model.ServiceTask; | ||
| import org.activiti.bpmn.model.SignalEventDefinition; | ||
| import org.activiti.bpmn.model.StartEvent; | ||
| import org.activiti.bpmn.model.SubProcess; | ||
| import org.activiti.bpmn.model.Task; | ||
| import org.activiti.bpmn.model.ThrowEvent; | ||
| import org.activiti.bpmn.model.TimerEventDefinition; | ||
| import org.activiti.bpmn.model.UserTask; | ||
|
|
||
| /** | ||
| * Class to generate an image based the diagram interchange information in a | ||
| * BPMN 2.0 process. | ||
| * | ||
| * @author Joram Barrez | ||
| */ | ||
| public class CustomProcessDiagramGenerator extends ProcessDiagramGenerator { | ||
|
|
||
| protected static void drawActivity(ProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode, List<String> highLightedActivities, List<String> highLightedFlows) { | ||
|
|
||
| ActivityDrawInstruction drawInstruction = activityDrawInstructions.get(flowNode.getClass()); | ||
| if (drawInstruction != null) { | ||
|
|
||
| drawInstruction.draw(processDiagramCanvas, bpmnModel, flowNode); | ||
|
|
||
| // Gather info on the multi instance marker | ||
| boolean multiInstanceSequential = false, multiInstanceParallel = false, collapsed = false; | ||
| if (flowNode instanceof Activity) { | ||
| Activity activity = (Activity) flowNode; | ||
| MultiInstanceLoopCharacteristics multiInstanceLoopCharacteristics = activity.getLoopCharacteristics(); | ||
| if (multiInstanceLoopCharacteristics != null) { | ||
| multiInstanceSequential = multiInstanceLoopCharacteristics.isSequential(); | ||
| multiInstanceParallel = !multiInstanceSequential; | ||
| } | ||
| } | ||
|
|
||
| // Gather info on the collapsed marker | ||
| GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId()); | ||
| if (flowNode instanceof SubProcess) { | ||
| collapsed = !graphicInfo.isExpanded(); | ||
| } else if (flowNode instanceof CallActivity) { | ||
| collapsed = true; | ||
| } | ||
|
|
||
| // Actually draw the markers | ||
| processDiagramCanvas.drawActivityMarkers((int) graphicInfo.getX(), (int) graphicInfo.getY(),(int) graphicInfo.getWidth(), (int) graphicInfo.getHeight(), | ||
| multiInstanceSequential, multiInstanceParallel, collapsed); | ||
|
|
||
| // Draw highlighted activities | ||
| if (highLightedActivities.contains(flowNode.getId())) { | ||
| drawHighLight(processDiagramCanvas, bpmnModel.getGraphicInfo(flowNode.getId())); | ||
| } | ||
|
|
||
| } | ||
|
|
||
| // Outgoing transitions of activity | ||
| for (SequenceFlow sequenceFlow : flowNode.getOutgoingFlows()) { | ||
| List<GraphicInfo> graphicInfoList = bpmnModel.getFlowLocationGraphicInfo(sequenceFlow.getId()); | ||
| boolean drawedLabel = false; | ||
| for (int i=1; i<graphicInfoList.size(); i++) { | ||
|
|
||
| GraphicInfo graphicInfo = graphicInfoList.get(i); | ||
| GraphicInfo previousGraphicInfo = graphicInfoList.get(i-1); | ||
|
|
||
| boolean highLighted = (highLightedFlows.contains(sequenceFlow.getId())); | ||
| boolean drawConditionalIndicator = (i == 1) && sequenceFlow.getConditionExpression() != null && !(flowNode instanceof Gateway); | ||
|
|
||
| if (i < graphicInfoList.size() - 1) { | ||
| processDiagramCanvas.drawSequenceflowWithoutArrow((int) previousGraphicInfo.getX(), (int) previousGraphicInfo.getY(), | ||
| (int) graphicInfo.getX(), (int) graphicInfo.getY(), drawConditionalIndicator, highLighted); | ||
| } else { | ||
| processDiagramCanvas.drawSequenceflow((int) previousGraphicInfo.getX(), (int) previousGraphicInfo.getY(), | ||
| (int) graphicInfo.getX(), (int) graphicInfo.getY(), drawConditionalIndicator, highLighted); | ||
| if (!drawedLabel) { | ||
| GraphicInfo labelGraphicInfo = bpmnModel.getLabelGraphicInfo(sequenceFlow.getId()); | ||
| if (labelGraphicInfo != null) { | ||
| previousGraphicInfo = graphicInfoList.get(0); | ||
|
|
||
| // int middleX = (int) (((previousGraphicInfo.getX() + labelGraphicInfo.getX()) + (graphicInfo.getX()+ labelGraphicInfo.getX())) / 2); | ||
| // int middleY = (int) (((previousGraphicInfo.getY() + labelGraphicInfo.getY()) + (graphicInfo.getY()+ labelGraphicInfo.getY())) / 2); | ||
| // middleX += 15; | ||
|
|
||
| int[] point = findMiddlePoint(graphicInfoList); | ||
| int middleX = (int) (point[0] + labelGraphicInfo.getX()); | ||
| int middleY = (int) (point[1] + labelGraphicInfo.getY()) - 15; | ||
|
|
||
| processDiagramCanvas.drawLabel(sequenceFlow.getName(), middleX, middleY, | ||
| (int) labelGraphicInfo.getWidth(), (int) labelGraphicInfo.getHeight()); | ||
| drawedLabel = true; | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // TODO: curvy parameter | ||
|
|
||
| // Outgoing transitions of activity | ||
| // for (PvmTransition sequenceFlow : activity.getOutgoingTransitions()) { | ||
| // boolean highLighted = (highLightedFlows.contains(sequenceFlow.getId())); | ||
| // boolean drawConditionalIndicator = sequenceFlow.getProperty(BpmnParse.PROPERTYNAME_CONDITION) != null | ||
| // && !((String) activity.getProperty("type")).toLowerCase().contains("gateway"); | ||
| // boolean isDefault = sequenceFlow.getId().equals(activity.getProperty("default")) | ||
| // && ((String) activity.getProperty("type")).toLowerCase().contains("gateway"); | ||
| // | ||
| // List<Integer> waypoints = ((TransitionImpl) sequenceFlow).getWaypoints(); | ||
| // int xPoints[]= new int[waypoints.size()/2]; | ||
| // int yPoints[]= new int[waypoints.size()/2]; | ||
| // for (int i=0, j=0; i < waypoints.size(); i+=2, j++) { // waypoints.size() | ||
| // // minimally 4: x1, y1, | ||
| // // x2, y2 | ||
| // xPoints[j] = waypoints.get(i); | ||
| // yPoints[j] = waypoints.get(i+1); | ||
| // } | ||
| // processDiagramCanvas.drawSequenceflow(xPoints, yPoints, drawConditionalIndicator, isDefault, highLighted); | ||
| // } | ||
|
|
||
| // Nested elements | ||
| if (flowNode instanceof FlowElementsContainer) { | ||
| for (FlowElement nestedFlowElement : ((FlowElementsContainer) flowNode).getFlowElements()) { | ||
| if (nestedFlowElement instanceof FlowNode) { | ||
| drawActivity(processDiagramCanvas, bpmnModel, (FlowNode) nestedFlowElement, highLightedActivities, highLightedFlows); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private static int[] findMiddlePoint(List<GraphicInfo> graphicInfoList) { | ||
| double totalLength = 0D; | ||
| GraphicInfo previousNode = null; | ||
| for (GraphicInfo graphicInfo : graphicInfoList) { | ||
| if (previousNode != null) { | ||
| totalLength += getLength(previousNode.getX(), graphicInfo.getX(), | ||
| previousNode.getY(), graphicInfo.getY()); | ||
| } | ||
| previousNode = graphicInfo; | ||
| } | ||
|
|
||
| double halfLength = totalLength / 2; | ||
| totalLength = 0D; | ||
| previousNode = null; | ||
| for (GraphicInfo graphicInfo : graphicInfoList) { | ||
| if (previousNode != null) { | ||
| double length = getLength(previousNode.getX(), graphicInfo.getX(), | ||
| previousNode.getY(), graphicInfo.getY()); | ||
|
|
||
| if (length >= halfLength) { | ||
| double rate = halfLength / length; | ||
| double x0 = previousNode.getX(); | ||
| double y0 = previousNode.getY(); | ||
| double x1 = graphicInfo.getX(); | ||
| double y1 = graphicInfo.getY(); | ||
| int[] point = new int[2]; | ||
| point[0] = (int) (x0 + (x1 - x0) * rate); | ||
| point[1] = (int) (y0 + (y1 - y0) * rate); | ||
| return point; | ||
| } else { | ||
| halfLength -= length; | ||
| } | ||
| } | ||
| previousNode = graphicInfo; | ||
| } | ||
|
|
||
| return null; | ||
| } | ||
|
|
||
| private static double getLength(double x0, double x1, double y0, double y1) { | ||
| return Math.sqrt((x0 - x1) * (x0 - x1) + (y0 - y1) * (y0 - y1)); | ||
| } | ||
|
|
||
| protected static void drawHighLight(ProcessDiagramCanvas processDiagramCanvas, GraphicInfo graphicInfo) { | ||
| processDiagramCanvas.drawHighLight((int) graphicInfo.getX(), (int) graphicInfo.getY(), (int) graphicInfo.getWidth(), (int) graphicInfo.getHeight()); | ||
|
|
||
| } | ||
| } |
Oops, something went wrong.