package org.jeecg.common.config;
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import java.awt.image.BufferedImage;
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import java.io.InputStream;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import org.activiti.bpmn.model.Activity;
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import org.activiti.bpmn.model.Artifact;
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import org.activiti.bpmn.model.Association;
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import org.activiti.bpmn.model.AssociationDirection;
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import org.activiti.bpmn.model.BaseElement;
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import org.activiti.bpmn.model.BoundaryEvent;
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import org.activiti.bpmn.model.BpmnModel;
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import org.activiti.bpmn.model.BusinessRuleTask;
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import org.activiti.bpmn.model.CallActivity;
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import org.activiti.bpmn.model.CompensateEventDefinition;
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import org.activiti.bpmn.model.EndEvent;
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import org.activiti.bpmn.model.ErrorEventDefinition;
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import org.activiti.bpmn.model.Event;
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import org.activiti.bpmn.model.EventDefinition;
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import org.activiti.bpmn.model.EventGateway;
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import org.activiti.bpmn.model.EventSubProcess;
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import org.activiti.bpmn.model.ExclusiveGateway;
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import org.activiti.bpmn.model.FlowElement;
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import org.activiti.bpmn.model.FlowElementsContainer;
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import org.activiti.bpmn.model.FlowNode;
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import org.activiti.bpmn.model.Gateway;
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import org.activiti.bpmn.model.GraphicInfo;
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import org.activiti.bpmn.model.InclusiveGateway;
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import org.activiti.bpmn.model.IntermediateCatchEvent;
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import org.activiti.bpmn.model.Lane;
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import org.activiti.bpmn.model.ManualTask;
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import org.activiti.bpmn.model.MessageEventDefinition;
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import org.activiti.bpmn.model.MultiInstanceLoopCharacteristics;
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import org.activiti.bpmn.model.ParallelGateway;
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import org.activiti.bpmn.model.Pool;
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import org.activiti.bpmn.model.Process;
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import org.activiti.bpmn.model.ReceiveTask;
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import org.activiti.bpmn.model.ScriptTask;
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import org.activiti.bpmn.model.SendTask;
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import org.activiti.bpmn.model.SequenceFlow;
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import org.activiti.bpmn.model.ServiceTask;
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import org.activiti.bpmn.model.SignalEventDefinition;
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import org.activiti.bpmn.model.StartEvent;
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import org.activiti.bpmn.model.SubProcess;
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import org.activiti.bpmn.model.Task;
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import org.activiti.bpmn.model.TextAnnotation;
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import org.activiti.bpmn.model.ThrowEvent;
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import org.activiti.bpmn.model.TimerEventDefinition;
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import org.activiti.bpmn.model.UserTask;
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import org.activiti.image.ProcessDiagramGenerator;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* Class to generate an image based the diagram interchange information in a BPMN 2.0 process.
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*
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* @author Joram Barrez
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* @author Tijs Rademakers
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*/
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public class CustomProcessDiagramGenerator implements ProcessDiagramGenerator {
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protected static final Logger logger = LoggerFactory.getLogger(CustomProcessDiagramGenerator.class);
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protected Map<Class<? extends BaseElement>, ActivityDrawInstruction> activityDrawInstructions = new HashMap<Class<? extends BaseElement>, ActivityDrawInstruction>();
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protected Map<Class<? extends BaseElement>, ArtifactDrawInstruction> artifactDrawInstructions = new HashMap<Class<? extends BaseElement>, ArtifactDrawInstruction>();
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public CustomProcessDiagramGenerator() {
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this(1.0);
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}
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/**
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* The instructions on how to draw a certain construct is
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* created statically and stored in a map for performance.
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*/
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public CustomProcessDiagramGenerator(final double scaleFactor) {
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// start event
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activityDrawInstructions.put(StartEvent.class, new ActivityDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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StartEvent startEvent = (StartEvent) flowNode;
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if (startEvent.getEventDefinitions() != null && !startEvent.getEventDefinitions().isEmpty()) {
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EventDefinition eventDefinition = startEvent.getEventDefinitions().get(0);
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if (eventDefinition instanceof TimerEventDefinition) {
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processDiagramCanvas.drawTimerStartEvent(graphicInfo, scaleFactor);
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} else if (eventDefinition instanceof ErrorEventDefinition) {
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processDiagramCanvas.drawErrorStartEvent(graphicInfo, scaleFactor);
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} else if (eventDefinition instanceof SignalEventDefinition) {
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processDiagramCanvas.drawSignalStartEvent(graphicInfo, scaleFactor);
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} else if (eventDefinition instanceof MessageEventDefinition) {
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processDiagramCanvas.drawMessageStartEvent(graphicInfo, scaleFactor);
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} else {
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processDiagramCanvas.drawNoneStartEvent(graphicInfo);
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}
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} else {
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processDiagramCanvas.drawNoneStartEvent(graphicInfo);
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}
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}
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});
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// signal catch
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activityDrawInstructions.put(IntermediateCatchEvent.class, new ActivityDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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IntermediateCatchEvent intermediateCatchEvent = (IntermediateCatchEvent) flowNode;
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if (intermediateCatchEvent.getEventDefinitions() != null && !intermediateCatchEvent
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.getEventDefinitions().isEmpty()) {
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if (intermediateCatchEvent.getEventDefinitions().get(0) instanceof SignalEventDefinition) {
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processDiagramCanvas.drawCatchingSignalEvent(flowNode.getName(), graphicInfo, true,
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scaleFactor);
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} else if (intermediateCatchEvent.getEventDefinitions().get(0) instanceof TimerEventDefinition) {
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processDiagramCanvas.drawCatchingTimerEvent(flowNode.getName(), graphicInfo, true, scaleFactor);
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} else if (intermediateCatchEvent.getEventDefinitions().get(0) instanceof MessageEventDefinition) {
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processDiagramCanvas.drawCatchingMessageEvent(flowNode.getName(), graphicInfo, true,
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scaleFactor);
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}
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}
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}
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});
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// signal throw
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activityDrawInstructions.put(ThrowEvent.class, new ActivityDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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ThrowEvent throwEvent = (ThrowEvent) flowNode;
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if (throwEvent.getEventDefinitions() != null && !throwEvent.getEventDefinitions().isEmpty()) {
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if (throwEvent.getEventDefinitions().get(0) instanceof SignalEventDefinition) {
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processDiagramCanvas.drawThrowingSignalEvent(graphicInfo, scaleFactor);
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} else if (throwEvent.getEventDefinitions().get(0) instanceof CompensateEventDefinition) {
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processDiagramCanvas.drawThrowingCompensateEvent(graphicInfo, scaleFactor);
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} else {
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processDiagramCanvas.drawThrowingNoneEvent(graphicInfo, scaleFactor);
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}
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} else {
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processDiagramCanvas.drawThrowingNoneEvent(graphicInfo, scaleFactor);
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}
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}
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});
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// end event
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activityDrawInstructions.put(EndEvent.class, new ActivityDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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EndEvent endEvent = (EndEvent) flowNode;
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if (endEvent.getEventDefinitions() != null && !endEvent.getEventDefinitions().isEmpty()) {
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if (endEvent.getEventDefinitions().get(0) instanceof ErrorEventDefinition) {
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processDiagramCanvas.drawErrorEndEvent(flowNode.getName(), graphicInfo, scaleFactor);
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} else {
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processDiagramCanvas.drawNoneEndEvent(graphicInfo, scaleFactor);
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}
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} else {
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processDiagramCanvas.drawNoneEndEvent(graphicInfo, scaleFactor);
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}
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}
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});
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// task
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activityDrawInstructions.put(Task.class, new ActivityDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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processDiagramCanvas.drawTask(flowNode.getName(), graphicInfo);
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}
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});
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// user task
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activityDrawInstructions.put(UserTask.class, new ActivityDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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processDiagramCanvas.drawUserTask(flowNode.getName(), graphicInfo, scaleFactor);
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}
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});
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// script task
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activityDrawInstructions.put(ScriptTask.class, new ActivityDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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processDiagramCanvas.drawScriptTask(flowNode.getName(), graphicInfo, scaleFactor);
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}
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});
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// service task
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activityDrawInstructions.put(ServiceTask.class, new ActivityDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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ServiceTask serviceTask = (ServiceTask) flowNode;
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if ("camel".equalsIgnoreCase(serviceTask.getType())) {
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processDiagramCanvas.drawCamelTask(serviceTask.getName(), graphicInfo, scaleFactor);
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} else if ("mule".equalsIgnoreCase(serviceTask.getType())) {
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processDiagramCanvas.drawMuleTask(serviceTask.getName(), graphicInfo, scaleFactor);
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} else {
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processDiagramCanvas.drawServiceTask(serviceTask.getName(), graphicInfo, scaleFactor);
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}
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}
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});
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// receive task
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activityDrawInstructions.put(ReceiveTask.class, new ActivityDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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processDiagramCanvas.drawReceiveTask(flowNode.getName(), graphicInfo, scaleFactor);
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}
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});
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// send task
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activityDrawInstructions.put(SendTask.class, new ActivityDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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processDiagramCanvas.drawSendTask(flowNode.getName(), graphicInfo, scaleFactor);
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}
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});
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// manual task
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activityDrawInstructions.put(ManualTask.class, new ActivityDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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processDiagramCanvas.drawManualTask(flowNode.getName(), graphicInfo, scaleFactor);
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}
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});
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// businessRuleTask task
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activityDrawInstructions.put(BusinessRuleTask.class, new ActivityDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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processDiagramCanvas.drawBusinessRuleTask(flowNode.getName(), graphicInfo, scaleFactor);
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}
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});
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// exclusive gateway
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activityDrawInstructions.put(ExclusiveGateway.class, new ActivityDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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processDiagramCanvas.drawExclusiveGateway(graphicInfo, scaleFactor);
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}
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});
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// inclusive gateway
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activityDrawInstructions.put(InclusiveGateway.class, new ActivityDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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processDiagramCanvas.drawInclusiveGateway(graphicInfo, scaleFactor);
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}
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});
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// parallel gateway
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activityDrawInstructions.put(ParallelGateway.class, new ActivityDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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processDiagramCanvas.drawParallelGateway(graphicInfo, scaleFactor);
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}
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});
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// event based gateway
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activityDrawInstructions.put(EventGateway.class, new ActivityDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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processDiagramCanvas.drawEventBasedGateway(graphicInfo, scaleFactor);
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}
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});
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// Boundary timer
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activityDrawInstructions.put(BoundaryEvent.class, new ActivityDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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BoundaryEvent boundaryEvent = (BoundaryEvent) flowNode;
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if (boundaryEvent.getEventDefinitions() != null && !boundaryEvent.getEventDefinitions().isEmpty()) {
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if (boundaryEvent.getEventDefinitions().get(0) instanceof TimerEventDefinition) {
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processDiagramCanvas.drawCatchingTimerEvent(flowNode.getName(), graphicInfo, boundaryEvent
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.isCancelActivity(), scaleFactor);
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} else if (boundaryEvent.getEventDefinitions().get(0) instanceof ErrorEventDefinition) {
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processDiagramCanvas.drawCatchingErrorEvent(graphicInfo, boundaryEvent.isCancelActivity(),
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scaleFactor);
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} else if (boundaryEvent.getEventDefinitions().get(0) instanceof SignalEventDefinition) {
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processDiagramCanvas.drawCatchingSignalEvent(flowNode.getName(), graphicInfo, boundaryEvent
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.isCancelActivity(), scaleFactor);
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} else if (boundaryEvent.getEventDefinitions().get(0) instanceof MessageEventDefinition) {
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processDiagramCanvas.drawCatchingMessageEvent(flowNode.getName(), graphicInfo, boundaryEvent
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.isCancelActivity(), scaleFactor);
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} else if (boundaryEvent.getEventDefinitions().get(0) instanceof CompensateEventDefinition) {
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processDiagramCanvas.drawCatchingCompensateEvent(graphicInfo, boundaryEvent.isCancelActivity(),
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scaleFactor);
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}
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}
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}
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});
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// subprocess
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activityDrawInstructions.put(SubProcess.class, new ActivityDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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if (graphicInfo.getExpanded() != null && !graphicInfo.getExpanded()) {
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processDiagramCanvas.drawCollapsedSubProcess(flowNode.getName(), graphicInfo, false);
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} else {
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processDiagramCanvas.drawExpandedSubProcess(flowNode.getName(), graphicInfo, false, scaleFactor);
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}
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}
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});
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// Event subprocess
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activityDrawInstructions.put(EventSubProcess.class, new ActivityDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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if (graphicInfo.getExpanded() != null && !graphicInfo.getExpanded()) {
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processDiagramCanvas.drawCollapsedSubProcess(flowNode.getName(), graphicInfo, true);
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} else {
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processDiagramCanvas.drawExpandedSubProcess(flowNode.getName(), graphicInfo, true, scaleFactor);
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}
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}
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});
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// call activity
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activityDrawInstructions.put(CallActivity.class, new ActivityDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
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processDiagramCanvas.drawCollapsedCallActivity(flowNode.getName(), graphicInfo);
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}
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});
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// text annotation
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artifactDrawInstructions.put(TextAnnotation.class, new ArtifactDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, Artifact artifact) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(artifact.getId());
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TextAnnotation textAnnotation = (TextAnnotation) artifact;
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processDiagramCanvas.drawTextAnnotation(textAnnotation.getText(), graphicInfo);
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}
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});
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// association
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artifactDrawInstructions.put(Association.class, new ArtifactDrawInstruction() {
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@Override
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public void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, Artifact artifact) {
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Association association = (Association) artifact;
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String sourceRef = association.getSourceRef();
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String targetRef = association.getTargetRef();
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// source and target can be instance of FlowElement or Artifact
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BaseElement sourceElement = bpmnModel.getFlowElement(sourceRef);
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BaseElement targetElement = bpmnModel.getFlowElement(targetRef);
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if (sourceElement == null) {
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sourceElement = bpmnModel.getArtifact(sourceRef);
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}
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if (targetElement == null) {
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targetElement = bpmnModel.getArtifact(targetRef);
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}
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List<GraphicInfo> graphicInfoList = bpmnModel.getFlowLocationGraphicInfo(artifact.getId());
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graphicInfoList = connectionPerfectionizer(processDiagramCanvas, bpmnModel, sourceElement,
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targetElement, graphicInfoList);
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int[] xPoints = new int[graphicInfoList.size()];
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int[] yPoints = new int[graphicInfoList.size()];
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for (int i = 1; i < graphicInfoList.size(); i++) {
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GraphicInfo graphicInfo = graphicInfoList.get(i);
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GraphicInfo previousGraphicInfo = graphicInfoList.get(i - 1);
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if (i == 1) {
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xPoints[0] = (int) previousGraphicInfo.getX();
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yPoints[0] = (int) previousGraphicInfo.getY();
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}
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xPoints[i] = (int) graphicInfo.getX();
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yPoints[i] = (int) graphicInfo.getY();
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}
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AssociationDirection associationDirection = association.getAssociationDirection();
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processDiagramCanvas.drawAssociation(xPoints, yPoints, associationDirection, false, scaleFactor);
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}
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});
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}
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public InputStream generateDiagram(BpmnModel bpmnModel, String imageType, List<String> highLightedActivities,
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List<String> highLightedFlows, String activityFontName, String labelFontName, ClassLoader customClassLoader,
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double scaleFactor) {
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return generateProcessDiagram(bpmnModel, imageType, highLightedActivities, new ArrayList<String>(),
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highLightedFlows, activityFontName, labelFontName, customClassLoader, scaleFactor).generateImage(
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imageType);
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}
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@Override
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public InputStream generateDiagram(BpmnModel bpmnModel, String imageType, List<String> highLightedActivities,
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List<String> highLightedFlows) {
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return generateDiagram(bpmnModel, imageType, highLightedActivities, highLightedFlows, null, null, null, 1.0);
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}
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@Override
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public InputStream generateDiagram(BpmnModel bpmnModel, String imageType, List<String> highLightedActivities,
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List<String> highLightedFlows, double scaleFactor) {
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return generateDiagram(bpmnModel, imageType, highLightedActivities, highLightedFlows, null, null, null,
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scaleFactor);
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}
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@Override
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public InputStream generateDiagram(BpmnModel bpmnModel, String imageType, List<String> highLightedActivities) {
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return generateDiagram(bpmnModel, imageType, highLightedActivities, Collections.<String>emptyList());
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}
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@Override
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public InputStream generateDiagram(BpmnModel bpmnModel, String imageType, List<String> highLightedActivities,
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double scaleFactor) {
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return generateDiagram(bpmnModel, imageType, highLightedActivities, Collections.<String>emptyList(),
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scaleFactor);
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}
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public InputStream generateDiagram(BpmnModel bpmnModel, String imageType, String activityFontName,
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String labelFontName, ClassLoader customClassLoader) {
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return generateDiagram(bpmnModel, imageType, Collections.<String>emptyList(), Collections.<String>emptyList(),
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activityFontName, labelFontName, customClassLoader, 1.0);
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}
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public InputStream generateDiagram(BpmnModel bpmnModel, String imageType, String activityFontName,
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String labelFontName, ClassLoader customClassLoader, double scaleFactor) {
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return generateDiagram(bpmnModel, imageType, Collections.<String>emptyList(), Collections.<String>emptyList(),
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activityFontName, labelFontName, customClassLoader, scaleFactor);
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}
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@Override
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public InputStream generatePngDiagram(BpmnModel bpmnModel) {
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return generatePngDiagram(bpmnModel, 1.0);
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}
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@Override
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public InputStream generatePngDiagram(BpmnModel bpmnModel, double scaleFactor) {
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return generateDiagram(bpmnModel, "png", Collections.<String>emptyList(), Collections.<String>emptyList(),
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scaleFactor);
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}
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@Override
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public InputStream generateJpgDiagram(BpmnModel bpmnModel) {
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return generateJpgDiagram(bpmnModel, 1.0);
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}
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@Override
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public InputStream generateJpgDiagram(BpmnModel bpmnModel, double scaleFactor) {
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return generateDiagram(bpmnModel, "jpg", Collections.<String>emptyList(), Collections.<String>emptyList());
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}
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public BufferedImage generateImage(BpmnModel bpmnModel, String imageType, List<String> highLightedActivities,
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List<String> highLightedFlows, String activityFontName, String labelFontName, ClassLoader customClassLoader,
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double scaleFactor) {
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return generateProcessDiagram(bpmnModel, imageType, highLightedActivities, new ArrayList<String>(),
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highLightedFlows, activityFontName, labelFontName, customClassLoader, scaleFactor)
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.generateBufferedImage(imageType);
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}
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public BufferedImage generateImage(BpmnModel bpmnModel, String imageType, List<String> highLightedActivities,
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List<String> highLightedFlows, double scaleFactor) {
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return generateImage(bpmnModel, imageType, highLightedActivities, highLightedFlows, null, null, null,
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scaleFactor);
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}
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@Override
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public BufferedImage generatePngImage(BpmnModel bpmnModel, double scaleFactor) {
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return generateImage(bpmnModel, "png", Collections.<String>emptyList(), Collections.<String>emptyList(),
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scaleFactor);
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}
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protected CustomProcessDiagramCanvas generateProcessDiagram(BpmnModel bpmnModel, String imageType,
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List<String> highLightedActivities, List<String> runningActivitiIdList, List<String> highLightedFlows,
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String activityFontName, String labelFontName, ClassLoader customClassLoader, double scaleFactor) {
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CustomProcessDiagramCanvas processDiagramCanvas = initProcessDiagramCanvas(bpmnModel, imageType,
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activityFontName, labelFontName, customClassLoader);
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// Draw pool shape, if process is participant in collaboration
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for (Pool pool : bpmnModel.getPools()) {
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GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(pool.getId());
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processDiagramCanvas.drawPoolOrLane(pool.getName(), graphicInfo);
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}
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// Draw lanes
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for (Process process : bpmnModel.getProcesses()) {
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for (Lane lane : process.getLanes()) {
|
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(lane.getId());
|
processDiagramCanvas.drawPoolOrLane(lane.getName(), graphicInfo);
|
}
|
}
|
|
// Draw activities and their sequence-flows
|
/**
|
* 绘制流程图上的所有节点和流程线，对高亮显示的节点和流程线进行特殊处理
|
*/
|
for (FlowNode flowNode : bpmnModel.getProcesses().get(0).findFlowElementsOfType(FlowNode.class)) {
|
drawActivity(processDiagramCanvas, bpmnModel, flowNode, highLightedActivities, runningActivitiIdList,
|
highLightedFlows, scaleFactor);
|
}
|
|
// Draw artifacts
|
for (Process process : bpmnModel.getProcesses()) {
|
for (Artifact artifact : process.getArtifacts()) {
|
drawArtifact(processDiagramCanvas, bpmnModel, artifact);
|
}
|
}
|
|
return processDiagramCanvas;
|
}
|
|
/**
|
* Desc: 绘制流程图上的所有节点和流程线，对高亮显示的节点和流程线进行特殊处理
|
*
|
* @param processDiagramCanvas
|
* @param bpmnModel
|
* @param flowNode
|
* @param highLightedActivities
|
* @param highLightedFlows
|
* @param scaleFactor
|
* @author Fuxs
|
*/
|
protected void drawActivity(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode,
|
List<String> highLightedActivities, List<String> runningActivitiIdList, List<String> highLightedFlows,
|
double scaleFactor) {
|
|
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.getExpanded() != null && !graphicInfo.getExpanded();
|
} else if (flowNode instanceof CallActivity) {
|
collapsed = true;
|
}
|
|
if (scaleFactor == 1.0) {
|
// 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())) {
|
/**
|
* 如果节点为当前正在处理中的节点，则红色高亮显示
|
*/
|
if (runningActivitiIdList.contains(flowNode.getId())) {
|
logger.debug("[绘制]-当前正在处理中的节点-红色高亮显示节点[{}-{}]", flowNode.getId(), flowNode.getName());
|
drawRunningActivitiHighLight(processDiagramCanvas, bpmnModel.getGraphicInfo(flowNode.getId()));
|
} else {
|
logger.debug("[绘制]-高亮显示节点[{}-{}]", flowNode.getId(), flowNode.getName());
|
drawHighLight(processDiagramCanvas, bpmnModel.getGraphicInfo(flowNode.getId()));
|
}
|
}
|
}
|
|
// Outgoing transitions of activity
|
/**
|
* 绘制当前节点的流程线
|
*/
|
for (SequenceFlow sequenceFlow : flowNode.getOutgoingFlows()) {
|
boolean highLighted = (highLightedFlows.contains(sequenceFlow.getId()));
|
String defaultFlow = null;
|
if (flowNode instanceof Activity) {
|
defaultFlow = ((Activity) flowNode).getDefaultFlow();
|
} else if (flowNode instanceof Gateway) {
|
defaultFlow = ((Gateway) flowNode).getDefaultFlow();
|
}
|
|
boolean isDefault = false;
|
if (defaultFlow != null && defaultFlow.equalsIgnoreCase(sequenceFlow.getId())) {
|
isDefault = true;
|
}
|
boolean drawConditionalIndicator = sequenceFlow.getConditionExpression() != null
|
&& !(flowNode instanceof Gateway);
|
|
String sourceRef = sequenceFlow.getSourceRef();
|
String targetRef = sequenceFlow.getTargetRef();
|
FlowElement sourceElement = bpmnModel.getFlowElement(sourceRef);
|
FlowElement targetElement = bpmnModel.getFlowElement(targetRef);
|
List<GraphicInfo> graphicInfoList = bpmnModel.getFlowLocationGraphicInfo(sequenceFlow.getId());
|
if (graphicInfoList != null && graphicInfoList.size() > 0) {
|
graphicInfoList = connectionPerfectionizer(processDiagramCanvas, bpmnModel, sourceElement,
|
targetElement, graphicInfoList);
|
int[] xPoints = new int[graphicInfoList.size()];
|
int[] yPoints = new int[graphicInfoList.size()];
|
|
for (int i = 1; i < graphicInfoList.size(); i++) {
|
GraphicInfo graphicInfo = graphicInfoList.get(i);
|
GraphicInfo previousGraphicInfo = graphicInfoList.get(i - 1);
|
|
if (i == 1) {
|
xPoints[0] = (int) previousGraphicInfo.getX();
|
yPoints[0] = (int) previousGraphicInfo.getY();
|
}
|
xPoints[i] = (int) graphicInfo.getX();
|
yPoints[i] = (int) graphicInfo.getY();
|
|
}
|
|
processDiagramCanvas.drawSequenceflow(xPoints, yPoints, drawConditionalIndicator, isDefault,
|
highLighted, scaleFactor);
|
|
// Draw sequenceflow label
|
/**
|
* 绘制流程线名称
|
*/
|
GraphicInfo labelGraphicInfo = bpmnModel.getLabelGraphicInfo(sequenceFlow.getId());
|
// if (labelGraphicInfo != null) {
|
GraphicInfo lineCenter = getLineCenter(graphicInfoList);
|
processDiagramCanvas.drawLabel(sequenceFlow.getName(), lineCenter, true);
|
// }
|
}
|
}
|
|
// Nested elements
|
if (flowNode instanceof FlowElementsContainer) {
|
for (FlowElement nestedFlowElement : ((FlowElementsContainer) flowNode).getFlowElements()) {
|
if (nestedFlowElement instanceof FlowNode) {
|
drawActivity(processDiagramCanvas, bpmnModel, (FlowNode) nestedFlowElement, highLightedActivities,
|
runningActivitiIdList, highLightedFlows, scaleFactor);
|
}
|
}
|
}
|
}
|
|
/**
|
* This method makes coordinates of connection flow better.
|
*
|
* @param processDiagramCanvas
|
* @param bpmnModel
|
* @param sourceElement
|
* @param targetElement
|
* @param graphicInfoList
|
* @return
|
*/
|
protected static List<GraphicInfo> connectionPerfectionizer(CustomProcessDiagramCanvas processDiagramCanvas,
|
BpmnModel bpmnModel, BaseElement sourceElement, BaseElement targetElement,
|
List<GraphicInfo> graphicInfoList) {
|
GraphicInfo sourceGraphicInfo = bpmnModel.getGraphicInfo(sourceElement.getId());
|
GraphicInfo targetGraphicInfo = bpmnModel.getGraphicInfo(targetElement.getId());
|
|
CustomProcessDiagramCanvas.SHAPE_TYPE sourceShapeType = getShapeType(sourceElement);
|
CustomProcessDiagramCanvas.SHAPE_TYPE targetShapeType = getShapeType(targetElement);
|
|
return processDiagramCanvas.connectionPerfectionizer(sourceShapeType, targetShapeType, sourceGraphicInfo,
|
targetGraphicInfo, graphicInfoList);
|
}
|
|
/**
|
* This method returns shape type of base element.<br>
|
* Each element can be presented as rectangle, rhombus, or ellipse.
|
*
|
* @param baseElement
|
* @return CustomProcessDiagramCanvas.SHAPE_TYPE
|
*/
|
protected static CustomProcessDiagramCanvas.SHAPE_TYPE getShapeType(BaseElement baseElement) {
|
if (baseElement instanceof Task || baseElement instanceof Activity || baseElement instanceof TextAnnotation) {
|
return CustomProcessDiagramCanvas.SHAPE_TYPE.Rectangle;
|
} else if (baseElement instanceof Gateway) {
|
return CustomProcessDiagramCanvas.SHAPE_TYPE.Rhombus;
|
} else if (baseElement instanceof Event) {
|
return CustomProcessDiagramCanvas.SHAPE_TYPE.Ellipse;
|
} else {
|
// unknown source element, just do not correct coordinates
|
}
|
return null;
|
}
|
|
protected static GraphicInfo getLineCenter(List<GraphicInfo> graphicInfoList) {
|
GraphicInfo gi = new GraphicInfo();
|
|
int[] xPoints = new int[graphicInfoList.size()];
|
int[] yPoints = new int[graphicInfoList.size()];
|
|
double length = 0;
|
double[] lengths = new double[graphicInfoList.size()];
|
lengths[0] = 0;
|
double m;
|
for (int i = 1; i < graphicInfoList.size(); i++) {
|
GraphicInfo graphicInfo = graphicInfoList.get(i);
|
GraphicInfo previousGraphicInfo = graphicInfoList.get(i - 1);
|
|
if (i == 1) {
|
xPoints[0] = (int) previousGraphicInfo.getX();
|
yPoints[0] = (int) previousGraphicInfo.getY();
|
}
|
xPoints[i] = (int) graphicInfo.getX();
|
yPoints[i] = (int) graphicInfo.getY();
|
|
length += Math.sqrt(Math.pow((int) graphicInfo.getX() - (int) previousGraphicInfo.getX(), 2) + Math.pow(
|
(int) graphicInfo.getY() - (int) previousGraphicInfo.getY(), 2));
|
lengths[i] = length;
|
}
|
m = length / 2;
|
int p1 = 0, p2 = 1;
|
for (int i = 1; i < lengths.length; i++) {
|
double len = lengths[i];
|
p1 = i - 1;
|
p2 = i;
|
if (len > m) {
|
break;
|
}
|
}
|
|
GraphicInfo graphicInfo1 = graphicInfoList.get(p1);
|
GraphicInfo graphicInfo2 = graphicInfoList.get(p2);
|
|
double AB = (int) graphicInfo2.getX() - (int) graphicInfo1.getX();
|
double OA = (int) graphicInfo2.getY() - (int) graphicInfo1.getY();
|
double OB = lengths[p2] - lengths[p1];
|
double ob = m - lengths[p1];
|
double ab = AB * ob / OB;
|
double oa = OA * ob / OB;
|
|
double mx = graphicInfo1.getX() + ab;
|
double my = graphicInfo1.getY() + oa;
|
|
gi.setX(mx);
|
gi.setY(my);
|
return gi;
|
}
|
|
protected void drawArtifact(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel,
|
Artifact artifact) {
|
|
ArtifactDrawInstruction drawInstruction = artifactDrawInstructions.get(artifact.getClass());
|
if (drawInstruction != null) {
|
drawInstruction.draw(processDiagramCanvas, bpmnModel, artifact);
|
}
|
}
|
|
private static void drawHighLight(CustomProcessDiagramCanvas processDiagramCanvas, GraphicInfo graphicInfo) {
|
processDiagramCanvas.drawHighLight((int) graphicInfo.getX(), (int) graphicInfo.getY(), (int) graphicInfo
|
.getWidth(), (int) graphicInfo.getHeight());
|
|
}
|
|
/**
|
* Desc:绘制正在执行中的节点红色高亮显示
|
*
|
* @param processDiagramCanvas
|
* @param graphicInfo
|
* @author Fuxs
|
*/
|
private static void drawRunningActivitiHighLight(CustomProcessDiagramCanvas processDiagramCanvas, GraphicInfo graphicInfo) {
|
processDiagramCanvas.drawRunningActivitiHighLight((int) graphicInfo.getX(), (int) graphicInfo.getY(), (int) graphicInfo
|
.getWidth(), (int) graphicInfo.getHeight());
|
|
}
|
|
protected static CustomProcessDiagramCanvas initProcessDiagramCanvas(BpmnModel bpmnModel, String imageType,
|
String activityFontName, String labelFontName, ClassLoader customClassLoader) {
|
|
// We need to calculate maximum values to know how big the image will be in its entirety
|
double minX = Double.MAX_VALUE;
|
double maxX = 0;
|
double minY = Double.MAX_VALUE;
|
double maxY = 0;
|
|
for (Pool pool : bpmnModel.getPools()) {
|
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(pool.getId());
|
minX = graphicInfo.getX();
|
maxX = graphicInfo.getX() + graphicInfo.getWidth();
|
minY = graphicInfo.getY();
|
maxY = graphicInfo.getY() + graphicInfo.getHeight();
|
}
|
|
List<FlowNode> flowNodes = gatherAllFlowNodes(bpmnModel);
|
for (FlowNode flowNode : flowNodes) {
|
|
GraphicInfo flowNodeGraphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
|
|
// width
|
if (flowNodeGraphicInfo.getX() + flowNodeGraphicInfo.getWidth() > maxX) {
|
maxX = flowNodeGraphicInfo.getX() + flowNodeGraphicInfo.getWidth();
|
}
|
if (flowNodeGraphicInfo.getX() < minX) {
|
minX = flowNodeGraphicInfo.getX();
|
}
|
// height
|
if (flowNodeGraphicInfo.getY() + flowNodeGraphicInfo.getHeight() > maxY) {
|
maxY = flowNodeGraphicInfo.getY() + flowNodeGraphicInfo.getHeight();
|
}
|
if (flowNodeGraphicInfo.getY() < minY) {
|
minY = flowNodeGraphicInfo.getY();
|
}
|
|
for (SequenceFlow sequenceFlow : flowNode.getOutgoingFlows()) {
|
List<GraphicInfo> graphicInfoList = bpmnModel.getFlowLocationGraphicInfo(sequenceFlow.getId());
|
if (graphicInfoList != null) {
|
for (GraphicInfo graphicInfo : graphicInfoList) {
|
// width
|
if (graphicInfo.getX() > maxX) {
|
maxX = graphicInfo.getX();
|
}
|
if (graphicInfo.getX() < minX) {
|
minX = graphicInfo.getX();
|
}
|
// height
|
if (graphicInfo.getY() > maxY) {
|
maxY = graphicInfo.getY();
|
}
|
if (graphicInfo.getY() < minY) {
|
minY = graphicInfo.getY();
|
}
|
}
|
}
|
}
|
}
|
|
List<Artifact> artifacts = gatherAllArtifacts(bpmnModel);
|
for (Artifact artifact : artifacts) {
|
|
GraphicInfo artifactGraphicInfo = bpmnModel.getGraphicInfo(artifact.getId());
|
|
if (artifactGraphicInfo != null) {
|
// width
|
if (artifactGraphicInfo.getX() + artifactGraphicInfo.getWidth() > maxX) {
|
maxX = artifactGraphicInfo.getX() + artifactGraphicInfo.getWidth();
|
}
|
if (artifactGraphicInfo.getX() < minX) {
|
minX = artifactGraphicInfo.getX();
|
}
|
// height
|
if (artifactGraphicInfo.getY() + artifactGraphicInfo.getHeight() > maxY) {
|
maxY = artifactGraphicInfo.getY() + artifactGraphicInfo.getHeight();
|
}
|
if (artifactGraphicInfo.getY() < minY) {
|
minY = artifactGraphicInfo.getY();
|
}
|
}
|
|
List<GraphicInfo> graphicInfoList = bpmnModel.getFlowLocationGraphicInfo(artifact.getId());
|
if (graphicInfoList != null) {
|
for (GraphicInfo graphicInfo : graphicInfoList) {
|
// width
|
if (graphicInfo.getX() > maxX) {
|
maxX = graphicInfo.getX();
|
}
|
if (graphicInfo.getX() < minX) {
|
minX = graphicInfo.getX();
|
}
|
// height
|
if (graphicInfo.getY() > maxY) {
|
maxY = graphicInfo.getY();
|
}
|
if (graphicInfo.getY() < minY) {
|
minY = graphicInfo.getY();
|
}
|
}
|
}
|
}
|
|
int nrOfLanes = 0;
|
for (Process process : bpmnModel.getProcesses()) {
|
for (Lane l : process.getLanes()) {
|
|
nrOfLanes++;
|
|
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(l.getId());
|
// // width
|
if (graphicInfo.getX() + graphicInfo.getWidth() > maxX) {
|
maxX = graphicInfo.getX() + graphicInfo.getWidth();
|
}
|
if (graphicInfo.getX() < minX) {
|
minX = graphicInfo.getX();
|
}
|
// height
|
if (graphicInfo.getY() + graphicInfo.getHeight() > maxY) {
|
maxY = graphicInfo.getY() + graphicInfo.getHeight();
|
}
|
if (graphicInfo.getY() < minY) {
|
minY = graphicInfo.getY();
|
}
|
}
|
}
|
|
// Special case, see http://jira.codehaus.org/browse/ACT-1431
|
if (flowNodes.isEmpty() && bpmnModel.getPools().isEmpty() && nrOfLanes == 0) {
|
// Nothing to show
|
minX = 0;
|
minY = 0;
|
}
|
|
return new CustomProcessDiagramCanvas((int) maxX + 10, (int) maxY + 10, (int) minX, (int) minY, imageType,
|
activityFontName, labelFontName, customClassLoader);
|
}
|
|
protected static List<Artifact> gatherAllArtifacts(BpmnModel bpmnModel) {
|
List<Artifact> artifacts = new ArrayList<Artifact>();
|
for (Process process : bpmnModel.getProcesses()) {
|
artifacts.addAll(process.getArtifacts());
|
}
|
return artifacts;
|
}
|
|
protected static List<FlowNode> gatherAllFlowNodes(BpmnModel bpmnModel) {
|
List<FlowNode> flowNodes = new ArrayList<FlowNode>();
|
for (Process process : bpmnModel.getProcesses()) {
|
flowNodes.addAll(gatherAllFlowNodes(process));
|
}
|
return flowNodes;
|
}
|
|
protected static List<FlowNode> gatherAllFlowNodes(FlowElementsContainer flowElementsContainer) {
|
List<FlowNode> flowNodes = new ArrayList<FlowNode>();
|
for (FlowElement flowElement : flowElementsContainer.getFlowElements()) {
|
if (flowElement instanceof FlowNode) {
|
flowNodes.add((FlowNode) flowElement);
|
}
|
if (flowElement instanceof FlowElementsContainer) {
|
flowNodes.addAll(gatherAllFlowNodes((FlowElementsContainer) flowElement));
|
}
|
}
|
return flowNodes;
|
}
|
|
public Map<Class<? extends BaseElement>, ActivityDrawInstruction> getActivityDrawInstructions() {
|
return activityDrawInstructions;
|
}
|
|
public void setActivityDrawInstructions(
|
Map<Class<? extends BaseElement>, ActivityDrawInstruction> activityDrawInstructions) {
|
this.activityDrawInstructions = activityDrawInstructions;
|
}
|
|
public Map<Class<? extends BaseElement>, ArtifactDrawInstruction> getArtifactDrawInstructions() {
|
return artifactDrawInstructions;
|
}
|
|
public void setArtifactDrawInstructions(
|
Map<Class<? extends BaseElement>, ArtifactDrawInstruction> artifactDrawInstructions) {
|
this.artifactDrawInstructions = artifactDrawInstructions;
|
}
|
|
protected interface ActivityDrawInstruction {
|
|
void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode);
|
}
|
|
protected interface ArtifactDrawInstruction {
|
|
void draw(CustomProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, Artifact artifact);
|
}
|
|
|
/**
|
* Desc: 自定义生成Diagram方法，添加对正在执行中的节点红色高亮显示
|
*
|
* @param bpmnModel
|
* @param imageType
|
* @param highLightedActivities
|
* @param runningActivitiIdList
|
* @param highLightedFlows
|
* @param activityFontName
|
* @param labelFontName
|
* @param annotationFontName
|
* @param customClassLoader
|
* @param scaleFactor
|
* @return
|
* @author Fuxs
|
*/
|
public InputStream generateDiagramCustom(BpmnModel bpmnModel, String imageType, List<String> highLightedActivities,
|
List<String> runningActivitiIdList, List<String> highLightedFlows, String activityFontName,
|
String labelFontName, String annotationFontName, ClassLoader customClassLoader, double scaleFactor) {
|
// TODO Auto-generated method stub
|
return generateProcessDiagram(bpmnModel, imageType, highLightedActivities, runningActivitiIdList,
|
highLightedFlows, activityFontName, labelFontName, customClassLoader, scaleFactor).generateImage(
|
imageType);
|
}
|
|
@Override
|
public InputStream generateDiagram(BpmnModel bpmnModel, String imageType, String activityFontName,
|
String labelFontName, String annotationFontName, ClassLoader customClassLoader) {
|
return generateDiagram(bpmnModel, imageType, Collections.<String>emptyList(), Collections.<String>emptyList(),
|
activityFontName, labelFontName, customClassLoader, 1.0);
|
}
|
|
@Override
|
public InputStream generateDiagram(BpmnModel bpmnModel, String imageType, String activityFontName,
|
String labelFontName, String annotationFontName, ClassLoader customClassLoader, double scaleFactor) {
|
// TODO Auto-generated method stub
|
return generateDiagram(bpmnModel, imageType, Collections.<String>emptyList(), Collections.<String>emptyList(),
|
activityFontName, labelFontName, customClassLoader, scaleFactor);
|
}
|
|
@Override
|
public InputStream generateDiagram(BpmnModel bpmnModel, String imageType, List<String> highLightedActivities,
|
List<String> highLightedFlows, String activityFontName, String labelFontName, String annotationFontName,
|
ClassLoader customClassLoader, double scaleFactor) {
|
// TODO Auto-generated method stub
|
return generateProcessDiagram(bpmnModel, imageType, highLightedActivities, new ArrayList<String>(),
|
highLightedFlows, activityFontName, labelFontName, customClassLoader, scaleFactor).generateImage(
|
imageType);
|
}
|
|
}
|
