1.Activiti自带的流程图追踪接口
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script type="text/javascript" src="jquery.min.js"></script>
</head>
<body>
![在这里插入图片描述]()
<script>
$(function() {
$("#proimg0").attr('src', src="/graphHistoryProcessInstance?processInstanceId=52505&rand="+Math.random());
});
</script>
</body>
</html>
@RequestMapping("graphHistoryProcessInstance")
public void processTracking(String processInstanceId,HttpServletResponse response) throws Exception {
HistoricProcessInstance processInstance = historyService.createHistoricProcessInstanceQuery().processInstanceId(processInstanceId).singleResult();
String procDefId = processInstance.getProcessDefinitionId();
// 当前活动节点、活动线
List<String> activeActivityIds = new ArrayList<>(), highLightedFlows;
//所有的历史活动节点
List<String> highLightedFinishes = new ArrayList<>();
// 如果流程已经结束，则得到结束节点
if (!isFinished(processInstanceId)) {
// 如果流程没有结束，则取当前活动节点
// 根据流程实例ID获得当前处于活动状态的ActivityId合集
activeActivityIds = runtimeService.getActiveActivityIds(processInstanceId);
}
// 获得历史活动记录实体（通过启动时间正序排序，不然有的线可以绘制不出来）
List<HistoricActivityInstance> historicActivityInstances = historyService
.createHistoricActivityInstanceQuery().processInstanceId(processInstanceId)
.orderByHistoricActivityInstanceStartTime().asc().list();
for(HistoricActivityInstance historicActivityInstance : historicActivityInstances){
highLightedFinishes.add(historicActivityInstance.getActivityId());
}
// 计算活动线
highLightedFlows = getHighLightedFlows(
(ProcessDefinitionEntity) ((RepositoryServiceImpl) repositoryService)
.getDeployedProcessDefinition(procDefId),
historicActivityInstances);
if (null != activeActivityIds) {
InputStream imageStream = null;
try {
response.setContentType("image/png");
// 获得流程引擎配置
ProcessEngineConfiguration processEngineConfiguration = processEngine.getProcessEngineConfiguration();
// 根据流程定义ID获得BpmnModel
BpmnModel bpmnModel = repositoryService
.getBpmnModel(procDefId);
// 输出资源内容到相应对象
imageStream = new DefaultProcessDiagramGenerator().generateDiagram(
bpmnModel,
"png",
activeActivityIds,
highLightedFlows,
"宋体",
"宋体",
"宋体",
processEngineConfiguration.getClassLoader(),
1.0);
int len;
byte[] b = new byte[1024];
while ((len = imageStream.read(b, 0, 1024)) != -1) {
response.getOutputStream().write(b, 0, len);
}
} finally {
if(imageStream != null){
imageStream.close();
}
}
}
}
public boolean isFinished(String processInstanceId) {
return historyService.createHistoricProcessInstanceQuery().finished().processInstanceId(processInstanceId).count() > 0;
}
/**
* @author H.J
* @date 2018/4/9 10:29
* @title getHighLightedFlows
* @description: 获取流程应该高亮的线
* @param processDefinitionEntity 流程定义实例
* @param historicActivityInstances 流程活动节点实例
* @return: java.util.List<java.lang.String>
*/
public List<String> getHighLightedFlows(ProcessDefinitionEntity processDefinitionEntity,List<HistoricActivityInstance> historicActivityInstances) {
List<String> highFlows = new ArrayList<>();// 用以保存高亮的线flowId
List<String> highActivitiImpl = new ArrayList<>();
for(HistoricActivityInstance historicActivityInstance : historicActivityInstances){
highActivitiImpl.add(historicActivityInstance.getActivityId());
}
for(HistoricActivityInstance historicActivityInstance : historicActivityInstances){
ActivityImpl activityImpl = processDefinitionEntity.findActivity(historicActivityInstance.getActivityId());
List<PvmTransition> pvmTransitions = activityImpl.getOutgoingTransitions();
// 对所有的线进行遍历
for (PvmTransition pvmTransition : pvmTransitions) {
// 如果取出的线的目标节点存在时间相同的节点里，保存该线的id，进行高亮显示
ActivityImpl pvmActivityImpl = (ActivityImpl) pvmTransition.getDestination();
if (highActivitiImpl.contains(pvmActivityImpl.getId())) {
highFlows.add(pvmTransition.getId());
}
}
}
return highFlows;
}
效果
2.查看源码
DefaultProcessDiagramGenerator 中的generateProcessDiagram方法
var12 = bpmnModel.getProcesses().iterator();
while(var12.hasNext()) {
process = (Process)var12.next();
var20 = process.findFlowElementsOfType(FlowNode.class).iterator();
while(var20.hasNext()) {
FlowNode flowNode = (FlowNode)var20.next();
//绘画节点
this.drawActivity(processDiagramCanvas, bpmnModel, flowNode, highLightedActivities, highLightedFlows, scaleFactor);
}
}
DefaultProcessDiagramGenerator 中的drawActivity方法
//如果节点ID在高亮节点的List中，则使用高亮
if(highLightedActivities.contains(flowNode.getId())) {
drawHighLight(processDiagramCanvas, bpmnModel.getGraphicInfo(flowNode.getId()));
}
DefaultProcessDiagramCanvas 中的drawHighLight方法
public void drawHighLight(int x, int y, int width, int height) {
Paint originalPaint = this.g.getPaint();
Stroke originalStroke = this.g.getStroke();
this.g.setPaint(HIGHLIGHT_COLOR);
this.g.setStroke(THICK_TASK_BORDER_STROKE);
RoundRectangle2D rect = new java.awt.geom.RoundRectangle2D.Double((double)x, (double)y, (double)width, (double)height, 20.0D, 20.0D);
this.g.draw(rect);
this.g.setPaint(originalPaint);
this.g.setStroke(originalStroke);
}
3.修改源码
复制DefaultProcessDiagramCanvas 到本地，并修改上述提到的几个方法
package com.example.demo.util;
import org.activiti.bpmn.model.AssociationDirection;
import org.activiti.bpmn.model.GraphicInfo;
import org.activiti.image.exception.ActivitiImageException;
import org.activiti.image.util.ReflectUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.font.FontRenderContext;
import java.awt.font.LineBreakMeasurer;
import java.awt.font.TextAttribute;
import java.awt.font.TextLayout;
import java.awt.geom.*;
import java.awt.geom.Ellipse2D.Double;
import java.awt.image.BufferedImage;
import java.awt.image.ImageObserver;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.text.AttributedCharacterIterator;
import java.text.AttributedString;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
public class DefaultProcessDiagramCanvas {
protected static final Logger LOGGER = LoggerFactory.getLogger(org.activiti.image.impl.DefaultProcessDiagramCanvas.class);
protected static Color TASK_BOX_COLOR = new Color(249, 249, 249);
protected static Color SUBPROCESS_BOX_COLOR = new Color(255, 255, 255);
protected static Color EVENT_COLOR = new Color(255, 255, 255);
protected static Color CONNECTION_COLOR = new Color(88, 88, 88);
protected static Color CONDITIONAL_INDICATOR_COLOR = new Color(255, 255, 255);
protected static Color HIGHLIGHT_COLOR;
protected static Color FINISHHIGHLIGHT_COLOR;
protected static Color LABEL_COLOR;
protected static Color TASK_BORDER_COLOR;
protected static Color EVENT_BORDER_COLOR;
protected static Color SUBPROCESS_BORDER_COLOR;
protected static Font LABEL_FONT;
protected static Font ANNOTATION_FONT;
protected static Stroke THICK_TASK_BORDER_STROKE;
protected static Stroke GATEWAY_TYPE_STROKE;
protected static Stroke END_EVENT_STROKE;
protected static Stroke MULTI_INSTANCE_STROKE;
protected static Stroke EVENT_SUBPROCESS_STROKE;
protected static Stroke NON_INTERRUPTING_EVENT_STROKE;
protected static Stroke HIGHLIGHT_FLOW_STROKE;
protected static Stroke ANNOTATION_STROKE;
protected static Stroke ASSOCIATION_STROKE;
protected static int ICON_PADDING;
protected static BufferedImage USERTASK_IMAGE;
protected static BufferedImage SCRIPTTASK_IMAGE;
protected static BufferedImage SERVICETASK_IMAGE;
protected static BufferedImage RECEIVETASK_IMAGE;
protected static BufferedImage SENDTASK_IMAGE;
protected static BufferedImage MANUALTASK_IMAGE;
protected static BufferedImage BUSINESS_RULE_TASK_IMAGE;
protected static BufferedImage SHELL_TASK_IMAGE;
protected static BufferedImage MULE_TASK_IMAGE;
protected static BufferedImage CAMEL_TASK_IMAGE;
protected static BufferedImage TIMER_IMAGE;
protected static BufferedImage COMPENSATE_THROW_IMAGE;
protected static BufferedImage COMPENSATE_CATCH_IMAGE;
protected static BufferedImage ERROR_THROW_IMAGE;
protected static BufferedImage ERROR_CATCH_IMAGE;
protected static BufferedImage MESSAGE_THROW_IMAGE;
protected static BufferedImage MESSAGE_CATCH_IMAGE;
protected static BufferedImage SIGNAL_CATCH_IMAGE;
protected static BufferedImage SIGNAL_THROW_IMAGE;
protected int canvasWidth = -1;
protected int canvasHeight = -1;
protected int minX = -1;
protected int minY = -1;
protected BufferedImage processDiagram;
protected Graphics2D g;
protected FontMetrics fontMetrics;
protected boolean closed;
protected ClassLoader customClassLoader;
protected String activityFontName = "Arial";
protected String labelFontName = "Arial";
protected String annotationFontName = "Arial";
public DefaultProcessDiagramCanvas(int width, int height, int minX, int minY, String imageType, String activityFontName, String labelFontName, String annotationFontName, ClassLoader customClassLoader) {
this.canvasWidth = width;
this.canvasHeight = height;
this.minX = minX;
this.minY = minY;
if(activityFontName != null) {
this.activityFontName = activityFontName;
}
if(labelFontName != null) {
this.labelFontName = labelFontName;
}
if(annotationFontName != null) {
this.annotationFontName = annotationFontName;
}
this.customClassLoader = customClassLoader;
this.initialize(imageType);
}
public void initialize(String imageType) {
if("png".equalsIgnoreCase(imageType)) {
this.processDiagram = new BufferedImage(this.canvasWidth, this.canvasHeight, 2);
} else {
this.processDiagram = new BufferedImage(this.canvasWidth, this.canvasHeight, 1);
}
this.g = this.processDiagram.createGraphics();
if(!"png".equalsIgnoreCase(imageType)) {
this.g.setBackground(new Color(255, 255, 255, 0));
this.g.clearRect(0, 0, this.canvasWidth, this.canvasHeight);
}
this.g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
this.g.setPaint(Color.black);
Font font = new Font(this.activityFontName, 1, 11);
this.g.setFont(font);
this.fontMetrics = this.g.getFontMetrics();
LABEL_FONT = new Font(this.labelFontName, 2, 10);
ANNOTATION_FONT = new Font(this.annotationFontName, 0, 11);
try {
USERTASK_IMAGE = ImageIO.read(ReflectUtil.getResource("org/activiti/icons/userTask.png", this.customClassLoader));
SCRIPTTASK_IMAGE = ImageIO.read(ReflectUtil.getResource("org/activiti/icons/scriptTask.png", this.customClassLoader));
SERVICETASK_IMAGE = ImageIO.read(ReflectUtil.getResource("org/activiti/icons/serviceTask.png", this.customClassLoader));
RECEIVETASK_IMAGE = ImageIO.read(ReflectUtil.getResource("org/activiti/icons/receiveTask.png", this.customClassLoader));
SENDTASK_IMAGE = ImageIO.read(ReflectUtil.getResource("org/activiti/icons/sendTask.png", this.customClassLoader));
MANUALTASK_IMAGE = ImageIO.read(ReflectUtil.getResource("org/activiti/icons/manualTask.png", this.customClassLoader));
BUSINESS_RULE_TASK_IMAGE = ImageIO.read(ReflectUtil.getResource("org/activiti/icons/businessRuleTask.png", this.customClassLoader));
SHELL_TASK_IMAGE = ImageIO.read(ReflectUtil.getResource("org/activiti/icons/shellTask.png", this.customClassLoader));
CAMEL_TASK_IMAGE = ImageIO.read(ReflectUtil.getResource("org/activiti/icons/camelTask.png", this.customClassLoader));
MULE_TASK_IMAGE = ImageIO.read(ReflectUtil.getResource("org/activiti/icons/muleTask.png", this.customClassLoader));
TIMER_IMAGE = ImageIO.read(ReflectUtil.getResource("org/activiti/icons/timer.png", this.customClassLoader));
COMPENSATE_THROW_IMAGE = ImageIO.read(ReflectUtil.getResource("org/activiti/icons/compensate-throw.png", this.customClassLoader));
COMPENSATE_CATCH_IMAGE = ImageIO.read(ReflectUtil.getResource("org/activiti/icons/compensate.png", this.customClassLoader));
ERROR_THROW_IMAGE = ImageIO.read(ReflectUtil.getResource("org/activiti/icons/error-throw.png", this.customClassLoader));
ERROR_CATCH_IMAGE = ImageIO.read(ReflectUtil.getResource("org/activiti/icons/error.png", this.customClassLoader));
MESSAGE_THROW_IMAGE = ImageIO.read(ReflectUtil.getResource("org/activiti/icons/message-throw.png", this.customClassLoader));
MESSAGE_CATCH_IMAGE = ImageIO.read(ReflectUtil.getResource("org/activiti/icons/message.png", this.customClassLoader));
SIGNAL_THROW_IMAGE = ImageIO.read(ReflectUtil.getResource("org/activiti/icons/signal-throw.png", this.customClassLoader));
SIGNAL_CATCH_IMAGE = ImageIO.read(ReflectUtil.getResource("org/activiti/icons/signal.png", this.customClassLoader));
} catch (IOException var4) {
LOGGER.warn("Could not load image for process diagram creation: {}", var4.getMessage());
}
}
public InputStream generateImage(String imageType) {
if(this.closed) {
throw new ActivitiImageException("ProcessDiagramGenerator already closed");
} else {
ByteArrayOutputStream out = new ByteArrayOutputStream();
try {
ImageIO.write(this.processDiagram, imageType, out);
} catch (IOException var11) {
throw new ActivitiImageException("Error while generating process image", var11);
} finally {
try {
if(out != null) {
out.close();
}
} catch (IOException var10) {
;
}
}
return new ByteArrayInputStream(out.toByteArray());
}
}
public void close() {
this.g.dispose();
this.closed = true;
}
public void drawNoneStartEvent(GraphicInfo graphicInfo) {
this.drawStartEvent(graphicInfo, (BufferedImage)null, 1.0D);
}
public void drawTimerStartEvent(GraphicInfo graphicInfo, double scaleFactor) {
this.drawStartEvent(graphicInfo, TIMER_IMAGE, scaleFactor);
}
public void drawSignalStartEvent(GraphicInfo graphicInfo, double scaleFactor) {
this.drawStartEvent(graphicInfo, SIGNAL_CATCH_IMAGE, scaleFactor);
}
public void drawMessageStartEvent(GraphicInfo graphicInfo, double scaleFactor) {
this.drawStartEvent(graphicInfo, MESSAGE_CATCH_IMAGE, scaleFactor);
}
public void drawStartEvent(GraphicInfo graphicInfo, BufferedImage image, double scaleFactor) {
Paint originalPaint = this.g.getPaint();
this.g.setPaint(EVENT_COLOR);
Ellipse2D circle = new Double(graphicInfo.getX(), graphicInfo.getY(), graphicInfo.getWidth(), graphicInfo.getHeight());
this.g.fill(circle);
this.g.setPaint(EVENT_BORDER_COLOR);
this.g.draw(circle);
this.g.setPaint(originalPaint);
if(image != null) {
int imageX = (int)Math.round(graphicInfo.getX() + graphicInfo.getWidth() / 2.0D - (double)(image.getWidth() / 2) * scaleFactor);
int imageY = (int)Math.round(graphicInfo.getY() + graphicInfo.getHeight() / 2.0D - (double)(image.getHeight() / 2) * scaleFactor);
this.g.drawImage(image, imageX, imageY, (int)((double)image.getWidth() / scaleFactor), (int)((double)image.getHeight() / scaleFactor), (ImageObserver)null);
}
}
public void drawNoneEndEvent(GraphicInfo graphicInfo, double scaleFactor) {
Paint originalPaint = this.g.getPaint();
Stroke originalStroke = this.g.getStroke();
this.g.setPaint(EVENT_COLOR);
Ellipse2D circle = new Double(graphicInfo.getX(), graphicInfo.getY(), graphicInfo.getWidth(), graphicInfo.getHeight());
this.g.fill(circle);
this.g.setPaint(EVENT_BORDER_COLOR);
if(scaleFactor == 1.0D) {
this.g.setStroke(END_EVENT_STROKE);
} else {
this.g.setStroke(new BasicStroke(2.0F));
}
this.g.draw(circle);
this.g.setStroke(originalStroke);
this.g.setPaint(originalPaint);
}
public void drawErrorEndEvent(String name, GraphicInfo graphicInfo, double scaleFactor) {
this.drawErrorEndEvent(graphicInfo, scaleFactor);
if(scaleFactor == 1.0D) {
this.drawLabel(name, graphicInfo);
}
}
public void drawErrorEndEvent(GraphicInfo graphicInfo, double scaleFactor) {
this.drawNoneEndEvent(graphicInfo, scaleFactor);
this.g.drawImage(ERROR_THROW_IMAGE, (int)(graphicInfo.getX() + graphicInfo.getWidth() / 4.0D), (int)(graphicInfo.getY() + graphicInfo.getHeight() / 4.0D), (int)((double)ERROR_THROW_IMAGE.getWidth() / scaleFactor), (int)((double)ERROR_THROW_IMAGE.getHeight() / scaleFactor), (ImageObserver)null);
}
public void drawErrorStartEvent(GraphicInfo graphicInfo, double scaleFactor) {
this.drawNoneStartEvent(graphicInfo);
this.g.drawImage(ERROR_CATCH_IMAGE, (int)(graphicInfo.getX() + graphicInfo.getWidth() / 4.0D), (int)(graphicInfo.getY() + graphicInfo.getHeight() / 4.0D), (int)((double)ERROR_CATCH_IMAGE.getWidth() / scaleFactor), (int)((double)ERROR_CATCH_IMAGE.getHeight() / scaleFactor), (ImageObserver)null);
}
public void drawCatchingEvent(GraphicInfo graphicInfo, boolean isInterrupting, BufferedImage image, String eventType, double scaleFactor) {
Ellipse2D outerCircle = new Double(graphicInfo.getX(), graphicInfo.getY(), graphicInfo.getWidth(), graphicInfo.getHeight());
int innerCircleSize = (int)(4.0D / scaleFactor);
if(innerCircleSize == 0) {
innerCircleSize = 1;
}
int innerCircleX = (int)graphicInfo.getX() + innerCircleSize;
int innerCircleY = (int)graphicInfo.getY() + innerCircleSize;
int innerCircleWidth = (int)graphicInfo.getWidth() - 2 * innerCircleSize;
int innerCircleHeight = (int)graphicInfo.getHeight() - 2 * innerCircleSize;
Ellipse2D innerCircle = new Double((double)innerCircleX, (double)innerCircleY, (double)innerCircleWidth, (double)innerCircleHeight);
Paint originalPaint = this.g.getPaint();
Stroke originalStroke = this.g.getStroke();
this.g.setPaint(EVENT_COLOR);
this.g.fill(outerCircle);
this.g.setPaint(EVENT_BORDER_COLOR);
if(!isInterrupting) {
this.g.setStroke(NON_INTERRUPTING_EVENT_STROKE);
}
this.g.draw(outerCircle);
this.g.setStroke(originalStroke);
this.g.setPaint(originalPaint);
this.g.draw(innerCircle);
if(image != null) {
int imageX = (int)(graphicInfo.getX() + graphicInfo.getWidth() / 2.0D - (double)(image.getWidth() / 2) * scaleFactor);
int imageY = (int)(graphicInfo.getY() + graphicInfo.getHeight() / 2.0D - (double)(image.getHeight() / 2) * scaleFactor);
if(scaleFactor == 1.0D && "timer".equals(eventType)) {
++imageX;
++imageY;
}
this.g.drawImage(image, imageX, imageY, (int)((double)image.getWidth() / scaleFactor), (int)((double)image.getHeight() / scaleFactor), (ImageObserver)null);
}
}
public void drawCatchingCompensateEvent(GraphicInfo graphicInfo, boolean isInterrupting, double scaleFactor) {
this.drawCatchingEvent(graphicInfo, isInterrupting, COMPENSATE_CATCH_IMAGE, "compensate", scaleFactor);
}
public void drawCatchingTimerEvent(String name, GraphicInfo graphicInfo, boolean isInterrupting, double scaleFactor) {
this.drawCatchingTimerEvent(graphicInfo, isInterrupting, scaleFactor);
this.drawLabel(name, graphicInfo);
}
public void drawCatchingTimerEvent(GraphicInfo graphicInfo, boolean isInterrupting, double scaleFactor) {
this.drawCatchingEvent(graphicInfo, isInterrupting, TIMER_IMAGE, "timer", scaleFactor);
}
public void drawCatchingErrorEvent(GraphicInfo graphicInfo, boolean isInterrupting, double scaleFactor) {
this.drawCatchingEvent(graphicInfo, isInterrupting, ERROR_CATCH_IMAGE, "error", scaleFactor);
}
public void drawCatchingSignalEvent(String name, GraphicInfo graphicInfo, boolean isInterrupting, double scaleFactor) {
this.drawCatchingSignalEvent(graphicInfo, isInterrupting, scaleFactor);
this.drawLabel(name, graphicInfo);
}
public void drawCatchingSignalEvent(GraphicInfo graphicInfo, boolean isInterrupting, double scaleFactor) {
this.drawCatchingEvent(graphicInfo, isInterrupting, SIGNAL_CATCH_IMAGE, "signal", scaleFactor);
}
public void drawCatchingMessageEvent(String name, GraphicInfo graphicInfo, boolean isInterrupting, double scaleFactor) {
this.drawCatchingEvent(graphicInfo, isInterrupting, MESSAGE_CATCH_IMAGE, "message", scaleFactor);
this.drawLabel(name, graphicInfo);
}
public void drawThrowingCompensateEvent(GraphicInfo graphicInfo, double scaleFactor) {
this.drawCatchingEvent(graphicInfo, true, COMPENSATE_THROW_IMAGE, "compensate", scaleFactor);
}
public void drawThrowingSignalEvent(GraphicInfo graphicInfo, double scaleFactor) {
this.drawCatchingEvent(graphicInfo, true, SIGNAL_THROW_IMAGE, "signal", scaleFactor);
}
public void drawThrowingNoneEvent(GraphicInfo graphicInfo, double scaleFactor) {
this.drawCatchingEvent(graphicInfo, true, (BufferedImage)null, "none", scaleFactor);
}
public void drawAssociation(int[] xPoints, int[] yPoints, AssociationDirection associationDirection, boolean highLighted, double scaleFactor) {
boolean conditional = false;
boolean isDefault = false;
this.drawConnection(xPoints, yPoints, conditional, isDefault, "association", associationDirection, highLighted, scaleFactor);
}
public void drawSequenceflow(int[] xPoints, int[] yPoints, boolean conditional, boolean isDefault, boolean highLighted, double scaleFactor) {
this.drawConnection(xPoints, yPoints, conditional, isDefault, "sequenceFlow", AssociationDirection.ONE, highLighted, scaleFactor);
}
public void drawConnection(int[] xPoints, int[] yPoints, boolean conditional, boolean isDefault, String connectionType, AssociationDirection associationDirection, boolean highLighted, double scaleFactor) {
Paint originalPaint = this.g.getPaint();
Stroke originalStroke = this.g.getStroke();
this.g.setPaint(CONNECTION_COLOR);
if(connectionType.equals("association")) {
this.g.setStroke(ASSOCIATION_STROKE);
} else if(highLighted) {
this.g.setPaint(FINISHHIGHLIGHT_COLOR);
this.g.setStroke(HIGHLIGHT_FLOW_STROKE);
}
for(int i = 1; i < xPoints.length; ++i) {
Integer sourceX = Integer.valueOf(xPoints[i - 1]);
Integer sourceY = Integer.valueOf(yPoints[i - 1]);
Integer targetX = Integer.valueOf(xPoints[i]);
Integer targetY = Integer.valueOf(yPoints[i]);
Line2D.Double line = new Line2D.Double((double)sourceX.intValue(), (double)sourceY.intValue(), (double)targetX.intValue(), (double)targetY.intValue());
this.g.draw(line);
}
Line2D.Double line;
if(isDefault) {
line = new Line2D.Double((double)xPoints[0], (double)yPoints[0], (double)xPoints[1], (double)yPoints[1]);
this.drawDefaultSequenceFlowIndicator(line, scaleFactor);
}
if(conditional) {
line = new Line2D.Double((double)xPoints[0], (double)yPoints[0], (double)xPoints[1], (double)yPoints[1]);
this.drawConditionalSequenceFlowIndicator(line, scaleFactor);
}
if(associationDirection.equals(AssociationDirection.ONE) || associationDirection.equals(AssociationDirection.BOTH)) {
line = new Line2D.Double((double)xPoints[xPoints.length - 2], (double)yPoints[xPoints.length - 2], (double)xPoints[xPoints.length - 1], (double)yPoints[xPoints.length - 1]);
this.drawArrowHead(line, scaleFactor);
}
if(associationDirection.equals(AssociationDirection.BOTH)) {
line = new Line2D.Double((double)xPoints[1], (double)yPoints[1], (double)xPoints[0], (double)yPoints[0]);
this.drawArrowHead(line, scaleFactor);
}
this.g.setPaint(originalPaint);
this.g.setStroke(originalStroke);
}
public void drawArrowHead(Line2D.Double line, double scaleFactor) {
int doubleArrowWidth = (int)(10.0D / scaleFactor);
if(doubleArrowWidth == 0) {
doubleArrowWidth = 2;
}
Polygon arrowHead = new Polygon();
arrowHead.addPoint(0, 0);
int arrowHeadPoint = (int)(-5.0D / scaleFactor);
if(arrowHeadPoint == 0) {
arrowHeadPoint = -1;
}
arrowHead.addPoint(arrowHeadPoint, -doubleArrowWidth);
arrowHeadPoint = (int)(5.0D / scaleFactor);
if(arrowHeadPoint == 0) {
arrowHeadPoint = 1;
}
arrowHead.addPoint(arrowHeadPoint, -doubleArrowWidth);
AffineTransform transformation = new AffineTransform();
transformation.setToIdentity();
double angle = Math.atan2(line.y2 - line.y1, line.x2 - line.x1);
transformation.translate(line.x2, line.y2);
transformation.rotate(angle - 1.5707963267948966D);
AffineTransform originalTransformation = this.g.getTransform();
this.g.setTransform(transformation);
this.g.fill(arrowHead);
this.g.setTransform(originalTransformation);
}
public void drawDefaultSequenceFlowIndicator(Line2D.Double line, double scaleFactor) {
double length = 10.0D / scaleFactor;
double halfOfLength = length / 2.0D;
double f = 8.0D;
Line2D.Double defaultIndicator = new Line2D.Double(-halfOfLength, 0.0D, halfOfLength, 0.0D);
double angle = Math.atan2(line.y2 - line.y1, line.x2 - line.x1);
double dx = f * Math.cos(angle);
double dy = f * Math.sin(angle);
double x1 = line.x1 + dx;
double y1 = line.y1 + dy;
AffineTransform transformation = new AffineTransform();
transformation.setToIdentity();
transformation.translate(x1, y1);
transformation.rotate(angle - 2.356194490192345D);
AffineTransform originalTransformation = this.g.getTransform();
this.g.setTransform(transformation);
this.g.draw(defaultIndicator);
this.g.setTransform(originalTransformation);
}
public void drawConditionalSequenceFlowIndicator(Line2D.Double line, double scaleFactor) {
if(scaleFactor <= 1.0D) {
int horizontal = 11;
int halfOfHorizontal = horizontal / 2;
int halfOfVertical = 8;
Polygon conditionalIndicator = new Polygon();
conditionalIndicator.addPoint(0, 0);
conditionalIndicator.addPoint(-halfOfHorizontal, halfOfVertical);
conditionalIndicator.addPoint(0, 16);
conditionalIndicator.addPoint(halfOfHorizontal, halfOfVertical);
AffineTransform transformation = new AffineTransform();
transformation.setToIdentity();
double angle = Math.atan2(line.y2 - line.y1, line.x2 - line.x1);
transformation.translate(line.x1, line.y1);
transformation.rotate(angle - 1.5707963267948966D);
AffineTransform originalTransformation = this.g.getTransform();
this.g.setTransform(transformation);
this.g.draw(conditionalIndicator);
Paint originalPaint = this.g.getPaint();
this.g.setPaint(CONDITIONAL_INDICATOR_COLOR);
this.g.fill(conditionalIndicator);
this.g.setPaint(originalPaint);
this.g.setTransform(originalTransformation);
}
}
public void drawTask(BufferedImage icon, String name, GraphicInfo graphicInfo, double scaleFactor) {
this.drawTask(name, graphicInfo);
this.g.drawImage(icon, (int)(graphicInfo.getX() + (double)ICON_PADDING / scaleFactor), (int)(graphicInfo.getY() + (double)ICON_PADDING / scaleFactor), (int)((double)icon.getWidth() / scaleFactor), (int)((double)icon.getHeight() / scaleFactor), (ImageObserver)null);
}
public void drawTask(String name, GraphicInfo graphicInfo) {
this.drawTask(name, graphicInfo, false);
}
public void drawPoolOrLane(String name, GraphicInfo graphicInfo) {
int x = (int)graphicInfo.getX();
int y = (int)graphicInfo.getY();
int width = (int)graphicInfo.getWidth();
int height = (int)graphicInfo.getHeight();
this.g.drawRect(x, y, width, height);
if(name != null && name.length() > 0) {
int availableTextSpace = height - 6;
AffineTransform transformation = new AffineTransform();
transformation.setToIdentity();
transformation.rotate(4.71238898038469D);
Font currentFont = this.g.getFont();
Font theDerivedFont = currentFont.deriveFont(transformation);
this.g.setFont(theDerivedFont);
String truncated = this.fitTextToWidth(name, availableTextSpace);
int realWidth = this.fontMetrics.stringWidth(truncated);
this.g.drawString(truncated, x + 2 + this.fontMetrics.getHeight(), 3 + y + availableTextSpace - (availableTextSpace - realWidth) / 2);
this.g.setFont(currentFont);
}
}
protected void drawTask(String name, GraphicInfo graphicInfo, boolean thickBorder) {
Paint originalPaint = this.g.getPaint();
int x = (int)graphicInfo.getX();
int y = (int)graphicInfo.getY();
int width = (int)graphicInfo.getWidth();
int height = (int)graphicInfo.getHeight();
this.g.setPaint(TASK_BOX_COLOR);
int arcR = 6;
if(thickBorder) {
arcR = 3;
}
RoundRectangle2D rect = new RoundRectangle2D.Double((double)x, (double)y, (double)width, (double)height, (double)arcR, (double)arcR);
this.g.fill(rect);
this.g.setPaint(TASK_BORDER_COLOR);
if(thickBorder) {
Stroke originalStroke = this.g.getStroke();
this.g.setStroke(THICK_TASK_BORDER_STROKE);
this.g.draw(rect);
this.g.setStroke(originalStroke);
} else {
this.g.draw(rect);
}
this.g.setPaint(originalPaint);
if(name != null && name.length() > 0) {
int boxWidth = width - 6;
int boxHeight = height - 16 - ICON_PADDING - ICON_PADDING - 12 - 2 - 2;
int boxX = x + width / 2 - boxWidth / 2;
int boxY = y + height / 2 - boxHeight / 2 + ICON_PADDING + ICON_PADDING - 2 - 2;
this.drawMultilineCentredText(name, boxX, boxY, boxWidth, boxHeight);
}
}
protected void drawMultilineCentredText(String text, int x, int y, int boxWidth, int boxHeight) {
this.drawMultilineText(text, x, y, boxWidth, boxHeight, true);
}
protected void drawMultilineAnnotationText(String text, int x, int y, int boxWidth, int boxHeight) {
this.drawMultilineText(text, x, y, boxWidth, boxHeight, false);
}
protected void drawMultilineText(String text, int x, int y, int boxWidth, int boxHeight, boolean centered) {
AttributedString attributedString = new AttributedString(text);
attributedString.addAttribute(TextAttribute.FONT, this.g.getFont());
attributedString.addAttribute(TextAttribute.FOREGROUND, Color.black);
AttributedCharacterIterator characterIterator = attributedString.getIterator();
int currentHeight = 0;
List<TextLayout> layouts = new ArrayList();
String lastLine = null;
LineBreakMeasurer measurer = new LineBreakMeasurer(characterIterator, this.g.getFontRenderContext());
int currentY;
int currentX;
for(TextLayout layout = null; measurer.getPosition() < characterIterator.getEndIndex() && currentHeight <= boxHeight; currentHeight += currentX) {
currentY = measurer.getPosition();
layout = measurer.nextLayout((float)boxWidth);
currentX = Float.valueOf(layout.getDescent() + layout.getAscent() + layout.getLeading()).intValue();
if(currentHeight + currentX > boxHeight) {
if(!layouts.isEmpty()) {
layouts.remove(layouts.size() - 1);
if(lastLine.length() >= 4) {
lastLine = lastLine.substring(0, lastLine.length() - 4) + "...";
}
layouts.add(new TextLayout(lastLine, this.g.getFont(), this.g.getFontRenderContext()));
}
break;
}
layouts.add(layout);
lastLine = text.substring(currentY, measurer.getPosition());
}
currentY = y + (centered?(boxHeight - currentHeight) / 2:0);
// int currentX = false;
TextLayout textLayout;
for(Iterator var16 = layouts.iterator(); var16.hasNext(); currentY = (int)((float)currentY + textLayout.getDescent() + textLayout.getLeading())) {
textLayout = (TextLayout)var16.next();
currentY = (int)((float)currentY + textLayout.getAscent());
currentX = x + (centered?(boxWidth - java.lang.Double.valueOf(textLayout.getBounds().getWidth()).intValue()) / 2:0);
textLayout.draw(this.g, (float)currentX, (float)currentY);
}
}
protected String fitTextToWidth(String original, int width) {
String text = original;
for(int maxWidth = width - 10; this.fontMetrics.stringWidth(text + "...") > maxWidth && text.length() > 0; text = text.substring(0, text.length() - 1)) {
;
}
if(!text.equals(original)) {
text = text + "...";
}
return text;
}
public void drawUserTask(String name, GraphicInfo graphicInfo, double scaleFactor) {
this.drawTask(USERTASK_IMAGE, name, graphicInfo, scaleFactor);
}
public void drawScriptTask(String name, GraphicInfo graphicInfo, double scaleFactor) {
this.drawTask(SCRIPTTASK_IMAGE, name, graphicInfo, scaleFactor);
}
public void drawServiceTask(String name, GraphicInfo graphicInfo, double scaleFactor) {
this.drawTask(SERVICETASK_IMAGE, name, graphicInfo, scaleFactor);
}
public void drawReceiveTask(String name, GraphicInfo graphicInfo, double scaleFactor) {
this.drawTask(RECEIVETASK_IMAGE, name, graphicInfo, scaleFactor);
}
public void drawSendTask(String name, GraphicInfo graphicInfo, double scaleFactor) {
this.drawTask(SENDTASK_IMAGE, name, graphicInfo, scaleFactor);
}
public void drawManualTask(String name, GraphicInfo graphicInfo, double scaleFactor) {
this.drawTask(MANUALTASK_IMAGE, name, graphicInfo, scaleFactor);
}
public void drawBusinessRuleTask(String name, GraphicInfo graphicInfo, double scaleFactor) {
this.drawTask(BUSINESS_RULE_TASK_IMAGE, name, graphicInfo, scaleFactor);
}
public void drawCamelTask(String name, GraphicInfo graphicInfo, double scaleFactor) {
this.drawTask(CAMEL_TASK_IMAGE, name, graphicInfo, scaleFactor);
}
public void drawMuleTask(String name, GraphicInfo graphicInfo, double scaleFactor) {
this.drawTask(MULE_TASK_IMAGE, name, graphicInfo, scaleFactor);
}
public void drawExpandedSubProcess(String name, GraphicInfo graphicInfo, Boolean isTriggeredByEvent, double scaleFactor) {
RoundRectangle2D rect = new RoundRectangle2D.Double(graphicInfo.getX(), graphicInfo.getY(), graphicInfo.getWidth(), graphicInfo.getHeight(), 8.0D, 8.0D);
if(isTriggeredByEvent.booleanValue()) {
Stroke originalStroke = this.g.getStroke();
this.g.setStroke(EVENT_SUBPROCESS_STROKE);
this.g.draw(rect);
this.g.setStroke(originalStroke);
} else {
Paint originalPaint = this.g.getPaint();
this.g.setPaint(SUBPROCESS_BOX_COLOR);
this.g.fill(rect);
this.g.setPaint(SUBPROCESS_BORDER_COLOR);
this.g.draw(rect);
this.g.setPaint(originalPaint);
}
if(scaleFactor == 1.0D && name != null && !name.isEmpty()) {
String text = this.fitTextToWidth(name, (int)graphicInfo.getWidth());
this.g.drawString(text, (int)graphicInfo.getX() + 10, (int)graphicInfo.getY() + 15);
}
}
public void drawCollapsedSubProcess(String name, GraphicInfo graphicInfo, Boolean isTriggeredByEvent) {
this.drawCollapsedTask(name, graphicInfo, false);
}
public void drawCollapsedCallActivity(String name, GraphicInfo graphicInfo) {
this.drawCollapsedTask(name, graphicInfo, true);
}
protected void drawCollapsedTask(String name, GraphicInfo graphicInfo, boolean thickBorder) {
this.drawTask(name, graphicInfo, thickBorder);
}
public void drawCollapsedMarker(int x, int y, int width, int height) {
int rectangleWidth = 12;
int rectangleHeight = 12;
Rectangle rect = new Rectangle(x + (width - rectangleWidth) / 2, y + height - rectangleHeight - 3, rectangleWidth, rectangleHeight);
this.g.draw(rect);
Line2D.Double line = new Line2D.Double(rect.getCenterX(), rect.getY() + 2.0D, rect.getCenterX(), rect.getMaxY() - 2.0D);
this.g.draw(line);
line = new Line2D.Double(rect.getMinX() + 2.0D, rect.getCenterY(), rect.getMaxX() - 2.0D, rect.getCenterY());
this.g.draw(line);
}
public void drawActivityMarkers(int x, int y, int width, int height, boolean multiInstanceSequential, boolean multiInstanceParallel, boolean collapsed) {
if(collapsed) {
if(!multiInstanceSequential && !multiInstanceParallel) {
this.drawCollapsedMarker(x, y, width, height);
} else {
this.drawCollapsedMarker(x - 6 - 2, y, width, height);
if(multiInstanceSequential) {
this.drawMultiInstanceMarker(true, x + 6 + 2, y, width, height);
} else {
this.drawMultiInstanceMarker(false, x + 6 + 2, y, width, height);
}
}
} else if(multiInstanceSequential) {
this.drawMultiInstanceMarker(true, x, y, width, height);
} else if(multiInstanceParallel) {
this.drawMultiInstanceMarker(false, x, y, width, height);
}
}
public void drawGateway(GraphicInfo graphicInfo) {
Polygon rhombus = new Polygon();
int x = (int)graphicInfo.getX();
int y = (int)graphicInfo.getY();
int width = (int)graphicInfo.getWidth();
int height = (int)graphicInfo.getHeight();
rhombus.addPoint(x, y + height / 2);
rhombus.addPoint(x + width / 2, y + height);
rhombus.addPoint(x + width, y + height / 2);
rhombus.addPoint(x + width / 2, y);
this.g.draw(rhombus);
}
public void drawParallelGateway(GraphicInfo graphicInfo, double scaleFactor) {
this.drawGateway(graphicInfo);
int x = (int)graphicInfo.getX();
int y = (int)graphicInfo.getY();
int width = (int)graphicInfo.getWidth();
int height = (int)graphicInfo.getHeight();
if(scaleFactor == 1.0D) {
Stroke orginalStroke = this.g.getStroke();
this.g.setStroke(GATEWAY_TYPE_STROKE);
Line2D.Double line = new Line2D.Double((double)(x + 10), (double)(y + height / 2), (double)(x + width - 10), (double)(y + height / 2));
this.g.draw(line);
line = new Line2D.Double((double)(x + width / 2), (double)(y + height - 10), (double)(x + width / 2), (double)(y + 10));
this.g.draw(line);
this.g.setStroke(orginalStroke);
}
}
public void drawExclusiveGateway(GraphicInfo graphicInfo, double scaleFactor) {
this.drawGateway(graphicInfo);
int x = (int)graphicInfo.getX();
int y = (int)graphicInfo.getY();
int width = (int)graphicInfo.getWidth();
int height = (int)graphicInfo.getHeight();
int quarterWidth = width / 4;
int quarterHeight = height / 4;
if(scaleFactor == 1.0D) {
Stroke orginalStroke = this.g.getStroke();
this.g.setStroke(GATEWAY_TYPE_STROKE);
Line2D.Double line = new Line2D.Double((double)(x + quarterWidth + 3), (double)(y + quarterHeight + 3), (double)(x + 3 * quarterWidth - 3), (double)(y + 3 * quarterHeight - 3));
this.g.draw(line);
line = new Line2D.Double((double)(x + quarterWidth + 3), (double)(y + 3 * quarterHeight - 3), (double)(x + 3 * quarterWidth - 3), (double)(y + quarterHeight + 3));
this.g.draw(line);
this.g.setStroke(orginalStroke);
}
}
public void drawInclusiveGateway(GraphicInfo graphicInfo, double scaleFactor) {
this.drawGateway(graphicInfo);
int x = (int)graphicInfo.getX();
int y = (int)graphicInfo.getY();
int width = (int)graphicInfo.getWidth();
int height = (int)graphicInfo.getHeight();
int diameter = width / 2;
if(scaleFactor == 1.0D) {
Stroke orginalStroke = this.g.getStroke();
this.g.setStroke(GATEWAY_TYPE_STROKE);
Double circle = new Double((double)((width - diameter) / 2 + x), (double)((height - diameter) / 2 + y), (double)diameter, (double)diameter);
this.g.draw(circle);
this.g.setStroke(orginalStroke);
}
}
public void drawEventBasedGateway(GraphicInfo graphicInfo, double scaleFactor) {
this.drawGateway(graphicInfo);
if(scaleFactor == 1.0D) {
int x = (int)graphicInfo.getX();
int y = (int)graphicInfo.getY();
int width = (int)graphicInfo.getWidth();
int height = (int)graphicInfo.getHeight();
double scale = 0.6D;
GraphicInfo eventInfo = new GraphicInfo();
eventInfo.setX((double)x + (double)width * (1.0D - scale) / 2.0D);
eventInfo.setY((double)y + (double)height * (1.0D - scale) / 2.0D);
eventInfo.setWidth((double)width * scale);
eventInfo.setHeight((double)height * scale);
this.drawCatchingEvent(eventInfo, true, (BufferedImage)null, "eventGateway", scaleFactor);
double r = (double)width / 6.0D;
int topX = (int)(0.95D * r);
int topY = (int)(-0.31D * r);
int bottomX = (int)(0.59D * r);
int bottomY = (int)(0.81D * r);
int[] xPoints = new int[]{0, topX, bottomX, -bottomX, -topX};
int[] yPoints = new int[]{-((int)r), topY, bottomY, bottomY, topY};
Polygon pentagon = new Polygon(xPoints, yPoints, 5);
pentagon.translate(x + width / 2, y + width / 2);
this.g.drawPolygon(pentagon);
}
}
public void drawMultiInstanceMarker(boolean sequential, int x, int y, int width, int height) {
int rectangleWidth = 12;
int rectangleHeight = 12;
int lineX = x + (width - rectangleWidth) / 2;
int lineY = y + height - rectangleHeight - 3;
Stroke orginalStroke = this.g.getStroke();
this.g.setStroke(MULTI_INSTANCE_STROKE);
if(sequential) {
this.g.draw(new Line2D.Double((double)lineX, (double)lineY, (double)(lineX + rectangleWidth), (double)lineY));
this.g.draw(new Line2D.Double((double)lineX, (double)(lineY + rectangleHeight / 2), (double)(lineX + rectangleWidth), (double)(lineY + rectangleHeight / 2)));
this.g.draw(new Line2D.Double((double)lineX, (double)(lineY + rectangleHeight), (double)(lineX + rectangleWidth), (double)(lineY + rectangleHeight)));
} else {
this.g.draw(new Line2D.Double((double)lineX, (double)lineY, (double)lineX, (double)(lineY + rectangleHeight)));
this.g.draw(new Line2D.Double((double)(lineX + rectangleWidth / 2), (double)lineY, (double)(lineX + rectangleWidth / 2), (double)(lineY + rectangleHeight)));
this.g.draw(new Line2D.Double((double)(lineX + rectangleWidth), (double)lineY, (double)(lineX + rectangleWidth), (double)(lineY + rectangleHeight)));
}
this.g.setStroke(orginalStroke);
}
public void drawHighLight(int x, int y, int width, int height, Color color) {
Paint originalPaint = this.g.getPaint();
Stroke originalStroke = this.g.getStroke();
this.g.setPaint(color);
this.g.setStroke(THICK_TASK_BORDER_STROKE);
RoundRectangle2D rect = new RoundRectangle2D.Double((double)x, (double)y, (double)width, (double)height, 20.0D, 20.0D);
this.g.draw(rect);
this.g.setPaint(originalPaint);
this.g.setStroke(originalStroke);
}
public void drawHighLightEvent(int x, int y, int width, int height, Color color) {
Paint originalPaint = this.g.getPaint();
Stroke originalStroke = this.g.getStroke();
Double circle = new Double(x, y, width, height);
this.g.setStroke(THICK_TASK_BORDER_STROKE);
this.g.setPaint(color);
this.g.draw(circle);
this.g.setPaint(originalPaint);
this.g.setStroke(originalStroke);
}
public void drawHighLightGateway(int x, int y, int width, int height, Color color){
Paint originalPaint = this.g.getPaint();
Stroke originalStroke = this.g.getStroke();
Polygon rhombus = new Polygon();
this.g.setPaint(color);
rhombus.addPoint(x, y + (height / 2));
rhombus.addPoint(x + (width / 2), y + height);
rhombus.addPoint(x + width, y + (height / 2));
rhombus.addPoint(x + (width / 2), y);
this.g.draw(rhombus);
this.g.setPaint(originalPaint);
this.g.setStroke(originalStroke);
}
public void drawHighLightTask(int x, int y, int width, int height, Color color) {
Paint originalPaint = this.g.getPaint();
Stroke originalStroke = this.g.getStroke();
this.g.setPaint(color);
this.g.setStroke(THICK_TASK_BORDER_STROKE);
RoundRectangle2D rect = new RoundRectangle2D.Double((double)x, (double)y, (double)width, (double)height, 10.0D, 10.0D);
this.g.draw(rect);
this.g.setPaint(originalPaint);
this.g.setStroke(originalStroke);
}
public void drawHighLightSubProcess(int x, int y, int width, int height, Color color) {
Paint originalPaint = this.g.getPaint();
Stroke originalStroke = this.g.getStroke();
this.g.setPaint(color);
this.g.setStroke(THICK_TASK_BORDER_STROKE);
RoundRectangle2D rect = new RoundRectangle2D.Double(x + 1, y + 1,width - 2, height - 2, 5.0D, 5.0D);
this.g.draw(rect);
this.g.setPaint(originalPaint);
this.g.setStroke(originalStroke);
}
public void drawTextAnnotation(String text, GraphicInfo graphicInfo) {
int x = (int)graphicInfo.getX();
int y = (int)graphicInfo.getY();
int width = (int)graphicInfo.getWidth();
int height = (int)graphicInfo.getHeight();
Font originalFont = this.g.getFont();
Stroke originalStroke = this.g.getStroke();
this.g.setFont(ANNOTATION_FONT);
Path2D path = new Path2D.Double();
x = (int)((double)x + 0.5D);
int lineLength = 18;
path.moveTo((double)(x + lineLength), (double)y);
path.lineTo((double)x, (double)y);
path.lineTo((double)x, (double)(y + height));
path.lineTo((double)(x + lineLength), (double)(y + height));
path.lineTo((double)(x + lineLength), (double)(y + height - 1));
path.lineTo((double)(x + 1), (double)(y + height - 1));
path.lineTo((double)(x + 1), (double)(y + 1));
path.lineTo((double)(x + lineLength), (double)(y + 1));
path.closePath();
this.g.draw(path);
int boxWidth = width - 14;
int boxHeight = height - 14;
int boxX = x + width / 2 - boxWidth / 2;
int boxY = y + height / 2 - boxHeight / 2;
if(text != null && !text.isEmpty()) {
this.drawMultilineAnnotationText(text, boxX, boxY, boxWidth, boxHeight);
}
this.g.setFont(originalFont);
this.g.setStroke(originalStroke);
}
public void drawLabel(String text, GraphicInfo graphicInfo) {
this.drawLabel(text, graphicInfo, true);
}
public void drawLabel(String text, GraphicInfo graphicInfo, boolean centered) {
float interline = 1.0F;
if(text != null && text.length() > 0) {
Paint originalPaint = this.g.getPaint();
Font originalFont = this.g.getFont();
this.g.setPaint(LABEL_COLOR);
this.g.setFont(LABEL_FONT);
int wrapWidth = 100;
int textY = (int)graphicInfo.getY();
AttributedString as = new AttributedString(text);
as.addAttribute(TextAttribute.FOREGROUND, this.g.getPaint());
as.addAttribute(TextAttribute.FONT, this.g.getFont());
AttributedCharacterIterator aci = as.getIterator();
FontRenderContext frc = new FontRenderContext((AffineTransform)null, true, false);
TextLayout tl;
for(LineBreakMeasurer lbm = new LineBreakMeasurer(aci, frc); lbm.getPosition() < text.length(); textY = (int)((float)textY + tl.getDescent() + tl.getLeading() + (interline - 1.0F) * tl.getAscent())) {
tl = lbm.nextLayout((float)wrapWidth);
textY = (int)((float)textY + tl.getAscent());
Rectangle2D bb = tl.getBounds();
double tX = graphicInfo.getX();
if(centered) {
tX += (double)((int)(graphicInfo.getWidth() / 2.0D - bb.getWidth() / 2.0D));
}
tl.draw(this.g, (float)tX, (float)textY);
}
this.g.setFont(originalFont);
this.g.setPaint(originalPaint);
}
}
public List<GraphicInfo> connectionPerfectionizer(org.activiti.image.impl.DefaultProcessDiagramCanvas.SHAPE_TYPE sourceShapeType, org.activiti.image.impl.DefaultProcessDiagramCanvas.SHAPE_TYPE targetShapeType, GraphicInfo sourceGraphicInfo, GraphicInfo targetGraphicInfo, List<GraphicInfo> graphicInfoList) {
Shape shapeFirst = createShape(sourceShapeType, sourceGraphicInfo);
Shape shapeLast = createShape(targetShapeType, targetGraphicInfo);
if(graphicInfoList != null && graphicInfoList.size() > 0) {
GraphicInfo graphicInfoFirst = (GraphicInfo)graphicInfoList.get(0);
GraphicInfo graphicInfoLast = (GraphicInfo)graphicInfoList.get(graphicInfoList.size() - 1);
if(shapeFirst != null) {
graphicInfoFirst.setX(shapeFirst.getBounds2D().getCenterX());
graphicInfoFirst.setY(shapeFirst.getBounds2D().getCenterY());
}
if(shapeLast != null) {
graphicInfoLast.setX(shapeLast.getBounds2D().getCenterX());
graphicInfoLast.setY(shapeLast.getBounds2D().getCenterY());
}
Point p = null;
Line2D.Double lineLast;
if(shapeFirst != null) {
lineLast = new Line2D.Double(graphicInfoFirst.getX(), graphicInfoFirst.getY(), ((GraphicInfo)graphicInfoList.get(1)).getX(), ((GraphicInfo)graphicInfoList.get(1)).getY());
p = getIntersection(shapeFirst, lineLast);
if(p != null) {
graphicInfoFirst.setX(p.getX());
graphicInfoFirst.setY(p.getY());
}
}
if(shapeLast != null) {
lineLast = new Line2D.Double(graphicInfoLast.getX(), graphicInfoLast.getY(), ((GraphicInfo)graphicInfoList.get(graphicInfoList.size() - 2)).getX(), ((GraphicInfo)graphicInfoList.get(graphicInfoList.size() - 2)).getY());
p = getIntersection(shapeLast, lineLast);
if(p != null) {
graphicInfoLast.setX(p.getX());
graphicInfoLast.setY(p.getY());
}
}
}
return graphicInfoList;
}
private static Shape createShape(org.activiti.image.impl.DefaultProcessDiagramCanvas.SHAPE_TYPE shapeType, GraphicInfo graphicInfo) {
if(org.activiti.image.impl.DefaultProcessDiagramCanvas.SHAPE_TYPE.Rectangle.equals(shapeType)) {
return new Rectangle2D.Double(graphicInfo.getX(), graphicInfo.getY(), graphicInfo.getWidth(), graphicInfo.getHeight());
} else if(org.activiti.image.impl.DefaultProcessDiagramCanvas.SHAPE_TYPE.Rhombus.equals(shapeType)) {
Path2D.Double rhombus = new Path2D.Double();
rhombus.moveTo(graphicInfo.getX(), graphicInfo.getY() + graphicInfo.getHeight() / 2.0D);
rhombus.lineTo(graphicInfo.getX() + graphicInfo.getWidth() / 2.0D, graphicInfo.getY() + graphicInfo.getHeight());
rhombus.lineTo(graphicInfo.getX() + graphicInfo.getWidth(), graphicInfo.getY() + graphicInfo.getHeight() / 2.0D);
rhombus.lineTo(graphicInfo.getX() + graphicInfo.getWidth() / 2.0D, graphicInfo.getY());
rhombus.lineTo(graphicInfo.getX(), graphicInfo.getY() + graphicInfo.getHeight() / 2.0D);
rhombus.closePath();
return rhombus;
} else {
return org.activiti.image.impl.DefaultProcessDiagramCanvas.SHAPE_TYPE.Ellipse.equals(shapeType)?new Double(graphicInfo.getX(), graphicInfo.getY(), graphicInfo.getWidth(), graphicInfo.getHeight()):null;
}
}
private static Point getIntersection(Shape shape, Line2D.Double line) {
return shape instanceof Ellipse2D?getEllipseIntersection(shape, line):(!(shape instanceof Rectangle2D) && !(shape instanceof Path2D)?null:getShapeIntersection(shape, line));
}
private static Point getEllipseIntersection(Shape shape, Line2D.Double line) {
double angle = Math.atan2(line.y2 - line.y1, line.x2 - line.x1);
double x = shape.getBounds2D().getWidth() / 2.0D * Math.cos(angle) + shape.getBounds2D().getCenterX();
double y = shape.getBounds2D().getHeight() / 2.0D * Math.sin(angle) + shape.getBounds2D().getCenterY();
Point p = new Point();
p.setLocation(x, y);
return p;
}
private static Point getShapeIntersection(Shape shape, Line2D.Double line) {
PathIterator it = shape.getPathIterator((AffineTransform)null);
double[] coords = new double[6];
double[] pos = new double[2];
new Line2D.Double();
for(; !it.isDone(); it.next()) {
int type = it.currentSegment(coords);
switch(type) {
case 0:
pos[0] = coords[0];
pos[1] = coords[1];
break;
case 1:
Line2D.Double l = new Line2D.Double(pos[0], pos[1], coords[0], coords[1]);
if(line.intersectsLine(l)) {
return getLinesIntersection(line, l);
}
pos[0] = coords[0];
pos[1] = coords[1];
case 2:
case 3:
case 4:
}
}
return null;
}
private static Point getLinesIntersection(Line2D a, Line2D b) {
double d = (a.getX1() - a.getX2()) * (b.getY2() - b.getY1()) - (a.getY1() - a.getY2()) * (b.getX2() - b.getX1());
double da = (a.getX1() - b.getX1()) * (b.getY2() - b.getY1()) - (a.getY1() - b.getY1()) * (b.getX2() - b.getX1());
double ta = da / d;
Point p = new Point();
p.setLocation(a.getX1() + ta * (a.getX2() - a.getX1()), a.getY1() + ta * (a.getY2() - a.getY1()));
return p;
}
static {
HIGHLIGHT_COLOR = Color.decode("#F68535");
FINISHHIGHLIGHT_COLOR = Color.decode("#60B467");
LABEL_COLOR = new Color(112, 146, 190);
TASK_BORDER_COLOR = new Color(187, 187, 187);
EVENT_BORDER_COLOR = new Color(88, 88, 88);
SUBPROCESS_BORDER_COLOR = new Color(0, 0, 0);
LABEL_FONT = null;
ANNOTATION_FONT = null;
THICK_TASK_BORDER_STROKE = new BasicStroke(3.0F);
GATEWAY_TYPE_STROKE = new BasicStroke(3.0F);
END_EVENT_STROKE = new BasicStroke(3.0F);
MULTI_INSTANCE_STROKE = new BasicStroke(1.3F);
EVENT_SUBPROCESS_STROKE = new BasicStroke(1.0F, 0, 0, 1.0F, new float[]{1.0F}, 0.0F);
NON_INTERRUPTING_EVENT_STROKE = new BasicStroke(1.0F, 0, 0, 1.0F, new float[]{4.0F, 3.0F}, 0.0F);
HIGHLIGHT_FLOW_STROKE = new BasicStroke(1.3F);
ANNOTATION_STROKE = new BasicStroke(2.0F);
ASSOCIATION_STROKE = new BasicStroke(2.0F, 0, 0, 1.0F, new float[]{2.0F, 2.0F}, 0.0F);
ICON_PADDING = 5;
}
public static enum SHAPE_TYPE {
Rectangle,
Rhombus,
Ellipse;
private SHAPE_TYPE() {
}
}
}
复制DefaultProcessDiagramGenerator ，并修改上述提到的方法
package com.example.demo.util;
import org.activiti.bpmn.model.*;
import org.activiti.bpmn.model.Event;
import org.activiti.bpmn.model.Process;
import org.activiti.image.impl.DefaultProcessDiagramCanvas.SHAPE_TYPE;
import java.awt.*;
import java.io.InputStream;
import java.util.*;
import java.util.List;
public class DefaultProcessDiagramGenerator {
protected Map<Class<? extends BaseElement>, ActivityDrawInstruction> activityDrawInstructions;
protected Map<Class<? extends BaseElement>, ArtifactDrawInstruction> artifactDrawInstructions;
public DefaultProcessDiagramGenerator() {
this(1.0D);
}
public DefaultProcessDiagramGenerator(final double scaleFactor) {
this.activityDrawInstructions = new HashMap();
this.artifactDrawInstructions = new HashMap();
this.activityDrawInstructions.put(StartEvent.class, new DefaultProcessDiagramGenerator.ActivityDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
StartEvent startEvent = (StartEvent)flowNode;
if(startEvent.getEventDefinitions() != null && !startEvent.getEventDefinitions().isEmpty()) {
EventDefinition eventDefinition = (EventDefinition)startEvent.getEventDefinitions().get(0);
if(eventDefinition instanceof TimerEventDefinition) {
processDiagramCanvas.drawTimerStartEvent(graphicInfo, scaleFactor);
} else if(eventDefinition instanceof ErrorEventDefinition) {
processDiagramCanvas.drawErrorStartEvent(graphicInfo, scaleFactor);
} else if(eventDefinition instanceof SignalEventDefinition) {
processDiagramCanvas.drawSignalStartEvent(graphicInfo, scaleFactor);
} else if(eventDefinition instanceof MessageEventDefinition) {
processDiagramCanvas.drawMessageStartEvent(graphicInfo, scaleFactor);
} else {
processDiagramCanvas.drawNoneStartEvent(graphicInfo);
}
} else {
processDiagramCanvas.drawNoneStartEvent(graphicInfo);
}
}
});
this.activityDrawInstructions.put(IntermediateCatchEvent.class, new DefaultProcessDiagramGenerator.ActivityDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
IntermediateCatchEvent intermediateCatchEvent = (IntermediateCatchEvent)flowNode;
if(intermediateCatchEvent.getEventDefinitions() != null && !intermediateCatchEvent.getEventDefinitions().isEmpty()) {
if(intermediateCatchEvent.getEventDefinitions().get(0) instanceof SignalEventDefinition) {
processDiagramCanvas.drawCatchingSignalEvent(flowNode.getName(), graphicInfo, true, scaleFactor);
} else if(intermediateCatchEvent.getEventDefinitions().get(0) instanceof TimerEventDefinition) {
processDiagramCanvas.drawCatchingTimerEvent(flowNode.getName(), graphicInfo, true, scaleFactor);
} else if(intermediateCatchEvent.getEventDefinitions().get(0) instanceof MessageEventDefinition) {
processDiagramCanvas.drawCatchingMessageEvent(flowNode.getName(), graphicInfo, true, scaleFactor);
}
}
}
});
this.activityDrawInstructions.put(ThrowEvent.class, new DefaultProcessDiagramGenerator.ActivityDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
ThrowEvent throwEvent = (ThrowEvent)flowNode;
if(throwEvent.getEventDefinitions() != null && !throwEvent.getEventDefinitions().isEmpty()) {
if(throwEvent.getEventDefinitions().get(0) instanceof SignalEventDefinition) {
processDiagramCanvas.drawThrowingSignalEvent(graphicInfo, scaleFactor);
} else if(throwEvent.getEventDefinitions().get(0) instanceof CompensateEventDefinition) {
processDiagramCanvas.drawThrowingCompensateEvent(graphicInfo, scaleFactor);
} else {
processDiagramCanvas.drawThrowingNoneEvent(graphicInfo, scaleFactor);
}
} else {
processDiagramCanvas.drawThrowingNoneEvent(graphicInfo, scaleFactor);
}
}
});
this.activityDrawInstructions.put(EndEvent.class, new DefaultProcessDiagramGenerator.ActivityDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
EndEvent endEvent = (EndEvent)flowNode;
if(endEvent.getEventDefinitions() != null && !endEvent.getEventDefinitions().isEmpty()) {
if(endEvent.getEventDefinitions().get(0) instanceof ErrorEventDefinition) {
processDiagramCanvas.drawErrorEndEvent(flowNode.getName(), graphicInfo, scaleFactor);
} else {
processDiagramCanvas.drawNoneEndEvent(graphicInfo, scaleFactor);
}
} else {
processDiagramCanvas.drawNoneEndEvent(graphicInfo, scaleFactor);
}
}
});
this.activityDrawInstructions.put(Task.class, new DefaultProcessDiagramGenerator.ActivityDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
processDiagramCanvas.drawTask(flowNode.getName(), graphicInfo);
}
});
this.activityDrawInstructions.put(UserTask.class, new DefaultProcessDiagramGenerator.ActivityDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
processDiagramCanvas.drawUserTask(flowNode.getName(), graphicInfo, scaleFactor);
}
});
this.activityDrawInstructions.put(ScriptTask.class, new DefaultProcessDiagramGenerator.ActivityDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
processDiagramCanvas.drawScriptTask(flowNode.getName(), graphicInfo, scaleFactor);
}
});
this.activityDrawInstructions.put(ServiceTask.class, new DefaultProcessDiagramGenerator.ActivityDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
ServiceTask serviceTask = (ServiceTask)flowNode;
if("camel".equalsIgnoreCase(serviceTask.getType())) {
processDiagramCanvas.drawCamelTask(serviceTask.getName(), graphicInfo, scaleFactor);
} else if("mule".equalsIgnoreCase(serviceTask.getType())) {
processDiagramCanvas.drawMuleTask(serviceTask.getName(), graphicInfo, scaleFactor);
} else {
processDiagramCanvas.drawServiceTask(serviceTask.getName(), graphicInfo, scaleFactor);
}
}
});
this.activityDrawInstructions.put(ReceiveTask.class, new DefaultProcessDiagramGenerator.ActivityDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
processDiagramCanvas.drawReceiveTask(flowNode.getName(), graphicInfo, scaleFactor);
}
});
this.activityDrawInstructions.put(SendTask.class, new DefaultProcessDiagramGenerator.ActivityDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
processDiagramCanvas.drawSendTask(flowNode.getName(), graphicInfo, scaleFactor);
}
});
this.activityDrawInstructions.put(ManualTask.class, new DefaultProcessDiagramGenerator.ActivityDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
processDiagramCanvas.drawManualTask(flowNode.getName(), graphicInfo, scaleFactor);
}
});
this.activityDrawInstructions.put(BusinessRuleTask.class, new DefaultProcessDiagramGenerator.ActivityDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
processDiagramCanvas.drawBusinessRuleTask(flowNode.getName(), graphicInfo, scaleFactor);
}
});
this.activityDrawInstructions.put(ExclusiveGateway.class, new DefaultProcessDiagramGenerator.ActivityDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
processDiagramCanvas.drawExclusiveGateway(graphicInfo, scaleFactor);
}
});
this.activityDrawInstructions.put(InclusiveGateway.class, new DefaultProcessDiagramGenerator.ActivityDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
processDiagramCanvas.drawInclusiveGateway(graphicInfo, scaleFactor);
}
});
this.activityDrawInstructions.put(ParallelGateway.class, new DefaultProcessDiagramGenerator.ActivityDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
processDiagramCanvas.drawParallelGateway(graphicInfo, scaleFactor);
}
});
this.activityDrawInstructions.put(EventGateway.class, new DefaultProcessDiagramGenerator.ActivityDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
processDiagramCanvas.drawEventBasedGateway(graphicInfo, scaleFactor);
}
});
this.activityDrawInstructions.put(BoundaryEvent.class, new DefaultProcessDiagramGenerator.ActivityDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
BoundaryEvent boundaryEvent = (BoundaryEvent)flowNode;
if(boundaryEvent.getEventDefinitions() != null && !boundaryEvent.getEventDefinitions().isEmpty()) {
if(boundaryEvent.getEventDefinitions().get(0) instanceof TimerEventDefinition) {
processDiagramCanvas.drawCatchingTimerEvent(flowNode.getName(), graphicInfo, boundaryEvent.isCancelActivity(), scaleFactor);
} else if(boundaryEvent.getEventDefinitions().get(0) instanceof ErrorEventDefinition) {
processDiagramCanvas.drawCatchingErrorEvent(graphicInfo, boundaryEvent.isCancelActivity(), scaleFactor);
} else if(boundaryEvent.getEventDefinitions().get(0) instanceof SignalEventDefinition) {
processDiagramCanvas.drawCatchingSignalEvent(flowNode.getName(), graphicInfo, boundaryEvent.isCancelActivity(), scaleFactor);
} else if(boundaryEvent.getEventDefinitions().get(0) instanceof MessageEventDefinition) {
processDiagramCanvas.drawCatchingMessageEvent(flowNode.getName(), graphicInfo, boundaryEvent.isCancelActivity(), scaleFactor);
} else if(boundaryEvent.getEventDefinitions().get(0) instanceof CompensateEventDefinition) {
processDiagramCanvas.drawCatchingCompensateEvent(graphicInfo, boundaryEvent.isCancelActivity(), scaleFactor);
}
}
}
});
this.activityDrawInstructions.put(SubProcess.class, new DefaultProcessDiagramGenerator.ActivityDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
if(graphicInfo.getExpanded() != null && !graphicInfo.getExpanded().booleanValue()) {
processDiagramCanvas.drawCollapsedSubProcess(flowNode.getName(), graphicInfo, Boolean.valueOf(false));
} else {
processDiagramCanvas.drawExpandedSubProcess(flowNode.getName(), graphicInfo, Boolean.valueOf(false), scaleFactor);
}
}
});
this.activityDrawInstructions.put(EventSubProcess.class, new DefaultProcessDiagramGenerator.ActivityDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
if(graphicInfo.getExpanded() != null && !graphicInfo.getExpanded().booleanValue()) {
processDiagramCanvas.drawCollapsedSubProcess(flowNode.getName(), graphicInfo, Boolean.valueOf(true));
} else {
processDiagramCanvas.drawExpandedSubProcess(flowNode.getName(), graphicInfo, Boolean.valueOf(true), scaleFactor);
}
}
});
this.activityDrawInstructions.put(CallActivity.class, new DefaultProcessDiagramGenerator.ActivityDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
processDiagramCanvas.drawCollapsedCallActivity(flowNode.getName(), graphicInfo);
}
});
this.artifactDrawInstructions.put(TextAnnotation.class, new DefaultProcessDiagramGenerator.ArtifactDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, Artifact artifact) {
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(artifact.getId());
TextAnnotation textAnnotation = (TextAnnotation)artifact;
processDiagramCanvas.drawTextAnnotation(textAnnotation.getText(), graphicInfo);
}
});
this.artifactDrawInstructions.put(Association.class, new DefaultProcessDiagramGenerator.ArtifactDrawInstruction() {
public void draw(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, Artifact artifact) {
Association association = (Association)artifact;
String sourceRef = association.getSourceRef();
String targetRef = association.getTargetRef();
BaseElement sourceElement = bpmnModel.getFlowElement(sourceRef);
BaseElement targetElement = bpmnModel.getFlowElement(targetRef);
if(sourceElement == null) {
sourceElement = bpmnModel.getArtifact(sourceRef);
}
if(targetElement == null) {
targetElement = bpmnModel.getArtifact(targetRef);
}
List<GraphicInfo> graphicInfoList = bpmnModel.getFlowLocationGraphicInfo(artifact.getId());
graphicInfoList = DefaultProcessDiagramGenerator.connectionPerfectionizer(processDiagramCanvas, bpmnModel, (BaseElement)sourceElement, (BaseElement)targetElement, graphicInfoList);
int[] xPoints = new int[graphicInfoList.size()];
int[] yPoints = new int[graphicInfoList.size()];
for(int i = 1; i < graphicInfoList.size(); ++i) {
GraphicInfo graphicInfo = (GraphicInfo)graphicInfoList.get(i);
GraphicInfo previousGraphicInfo = (GraphicInfo)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();
}
AssociationDirection associationDirection = association.getAssociationDirection();
processDiagramCanvas.drawAssociation(xPoints, yPoints, associationDirection, false, scaleFactor);
}
});
}
public InputStream generateDiagram(BpmnModel bpmnModel, String imageType,List<String> highLightedFinishes, List<String> highLightedActivities, List<String> highLightedFlows, String activityFontName, String labelFontName, String annotationFontName, ClassLoader customClassLoader, double scaleFactor) {
return this.generateProcessDiagram(bpmnModel, imageType,highLightedFinishes, highLightedActivities, highLightedFlows, activityFontName, labelFontName, annotationFontName, customClassLoader, scaleFactor).generateImage(imageType);
}
protected DefaultProcessDiagramCanvas generateProcessDiagram(BpmnModel bpmnModel, String imageType,List<String> highLightedFinishes, List<String> highLightedActivities, List<String> highLightedFlows, String activityFontName, String labelFontName, String annotationFontName, ClassLoader customClassLoader, double scaleFactor) {
this.prepareBpmnModel(bpmnModel);
DefaultProcessDiagramCanvas processDiagramCanvas = initProcessDiagramCanvas(bpmnModel, imageType, activityFontName, labelFontName, annotationFontName, customClassLoader);
Iterator var12 = bpmnModel.getPools().iterator();
while(var12.hasNext()) {
Pool pool = (Pool)var12.next();
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(pool.getId());
processDiagramCanvas.drawPoolOrLane(pool.getName(), graphicInfo);
}
var12 = bpmnModel.getProcesses().iterator();
Process process;
Iterator var20;
while(var12.hasNext()) {
process = (Process)var12.next();
var20 = process.getLanes().iterator();
while(var20.hasNext()) {
Lane lane = (Lane)var20.next();
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(lane.getId());
processDiagramCanvas.drawPoolOrLane(lane.getName(), graphicInfo);
}
}
var12 = bpmnModel.getProcesses().iterator();
while(var12.hasNext()) {
process = (Process)var12.next();
var20 = process.findFlowElementsOfType(FlowNode.class).iterator();
while(var20.hasNext()) {
FlowNode flowNode = (FlowNode)var20.next();
this.drawActivity(processDiagramCanvas, bpmnModel, flowNode, highLightedFinishes,highLightedActivities, highLightedFlows, scaleFactor);
}
}
var12 = bpmnModel.getProcesses().iterator();
while(true) {
List subProcesses;
do {
if(!var12.hasNext()) {
return processDiagramCanvas;
}
process = (Process)var12.next();
var20 = process.getArtifacts().iterator();
while(var20.hasNext()) {
Artifact artifact = (Artifact)var20.next();
this.drawArtifact(processDiagramCanvas, bpmnModel, artifact);
}
subProcesses = process.findFlowElementsOfType(SubProcess.class, true);
} while(subProcesses == null);
Iterator var24 = subProcesses.iterator();
while(var24.hasNext()) {
SubProcess subProcess = (SubProcess)var24.next();
Iterator var17 = subProcess.getArtifacts().iterator();
while(var17.hasNext()) {
Artifact subProcessArtifact = (Artifact)var17.next();
this.drawArtifact(processDiagramCanvas, bpmnModel, subProcessArtifact);
}
}
}
}
protected void prepareBpmnModel(BpmnModel bpmnModel) {
List<GraphicInfo> allGraphicInfos = new ArrayList();
if(bpmnModel.getLocationMap() != null) {
allGraphicInfos.addAll(bpmnModel.getLocationMap().values());
}
if(bpmnModel.getLabelLocationMap() != null) {
allGraphicInfos.addAll(bpmnModel.getLabelLocationMap().values());
}
if(bpmnModel.getFlowLocationMap() != null) {
Iterator var3 = bpmnModel.getFlowLocationMap().values().iterator();
while(var3.hasNext()) {
List<GraphicInfo> flowGraphicInfos = (List)var3.next();
allGraphicInfos.addAll(flowGraphicInfos);
}
}
if(allGraphicInfos.size() > 0) {
boolean needsTranslationX = false;
boolean needsTranslationY = false;
double lowestX = 0.0D;
double lowestY = 0.0D;
Iterator var9 = allGraphicInfos.iterator();
double translationY;
while(var9.hasNext()) {
GraphicInfo graphicInfo = (GraphicInfo)var9.next();
translationY = graphicInfo.getX();
double y = graphicInfo.getY();
if(translationY < lowestX) {
needsTranslationX = true;
lowestX = translationY;
}
if(y < lowestY) {
needsTranslationY = true;
lowestY = y;
}
}
if(needsTranslationX || needsTranslationY) {
double translationX = Math.abs(lowestX);
translationY = Math.abs(lowestY);
Iterator var18 = allGraphicInfos.iterator();
while(var18.hasNext()) {
GraphicInfo graphicInfo = (GraphicInfo)var18.next();
if(needsTranslationX) {
graphicInfo.setX(graphicInfo.getX() + translationX);
}
if(needsTranslationY) {
graphicInfo.setY(graphicInfo.getY() + translationY);
}
}
}
}
}
protected void drawActivity(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, FlowNode flowNode,List<String> highLightedFinishes, List<String> highLightedActivities, List<String> highLightedFlows, double scaleFactor) {
DefaultProcessDiagramGenerator.ActivityDrawInstruction drawInstruction = this.activityDrawInstructions.get(flowNode.getClass());
boolean highLighted;
if(drawInstruction != null) {
drawInstruction.draw(processDiagramCanvas, bpmnModel, flowNode);
boolean multiInstanceSequential = false;
boolean multiInstanceParallel = false;
highLighted = false;
if(flowNode instanceof Activity) {
Activity activity = (Activity)flowNode;
MultiInstanceLoopCharacteristics multiInstanceLoopCharacteristics = activity.getLoopCharacteristics();
if(multiInstanceLoopCharacteristics != null) {
multiInstanceSequential = multiInstanceLoopCharacteristics.isSequential();
multiInstanceParallel = !multiInstanceSequential;
}
}
GraphicInfo graphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
if(!(flowNode instanceof SubProcess)) {
if(flowNode instanceof CallActivity) {
highLighted = true;
}
} else {
highLighted = graphicInfo.getExpanded() != null && !graphicInfo.getExpanded().booleanValue();
}
if(scaleFactor == 1.0D) {
processDiagramCanvas.drawActivityMarkers((int)graphicInfo.getX(), (int)graphicInfo.getY(), (int)graphicInfo.getWidth(), (int)graphicInfo.getHeight(), multiInstanceSequential, multiInstanceParallel, highLighted);
}
if(highLightedActivities.contains(flowNode.getId())) {
drawHighLight(processDiagramCanvas, bpmnModel.getGraphicInfo(flowNode.getId()),DefaultProcessDiagramCanvas.HIGHLIGHT_COLOR,flowNode);
}
if(highLightedFinishes.contains(flowNode.getId()) && !highLightedActivities.contains(flowNode.getId())) {
drawHighLight(processDiagramCanvas, bpmnModel.getGraphicInfo(flowNode.getId()),DefaultProcessDiagramCanvas.FINISHHIGHLIGHT_COLOR,flowNode);
}
}
Iterator var25 = flowNode.getOutgoingFlows().iterator();
while(var25.hasNext()) {
SequenceFlow sequenceFlow = (SequenceFlow)var25.next();
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 = (GraphicInfo)graphicInfoList.get(i);
GraphicInfo previousGraphicInfo = (GraphicInfo)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);
GraphicInfo labelGraphicInfo = bpmnModel.getLabelGraphicInfo(sequenceFlow.getId());
if(labelGraphicInfo != null) {
processDiagramCanvas.drawLabel(sequenceFlow.getName(), labelGraphicInfo, false);
}
}
}
if(flowNode instanceof FlowElementsContainer) {
var25 = ((FlowElementsContainer)flowNode).getFlowElements().iterator();
while(var25.hasNext()) {
FlowElement nestedFlowElement = (FlowElement)var25.next();
if(nestedFlowElement instanceof FlowNode) {
this.drawActivity(processDiagramCanvas, bpmnModel, (FlowNode)nestedFlowElement, highLightedFinishes,highLightedActivities, highLightedFlows, scaleFactor);
}
}
}
}
protected static List<GraphicInfo> connectionPerfectionizer(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, BaseElement sourceElement, BaseElement targetElement, List<GraphicInfo> graphicInfoList) {
GraphicInfo sourceGraphicInfo = bpmnModel.getGraphicInfo(sourceElement.getId());
GraphicInfo targetGraphicInfo = bpmnModel.getGraphicInfo(targetElement.getId());
SHAPE_TYPE sourceShapeType = getShapeType(sourceElement);
SHAPE_TYPE targetShapeType = getShapeType(targetElement);
return processDiagramCanvas.connectionPerfectionizer(sourceShapeType, targetShapeType, sourceGraphicInfo, targetGraphicInfo, graphicInfoList);
}
protected static SHAPE_TYPE getShapeType(BaseElement baseElement) {
return !(baseElement instanceof Task) && !(baseElement instanceof Activity) && !(baseElement instanceof TextAnnotation)?(baseElement instanceof Gateway?SHAPE_TYPE.Rhombus:(baseElement instanceof Event?SHAPE_TYPE.Ellipse:null)):SHAPE_TYPE.Rectangle;
}
protected void drawArtifact(DefaultProcessDiagramCanvas processDiagramCanvas, BpmnModel bpmnModel, Artifact artifact) {
DefaultProcessDiagramGenerator.ArtifactDrawInstruction drawInstruction = this.artifactDrawInstructions.get(artifact.getClass());
if(drawInstruction != null) {
drawInstruction.draw(processDiagramCanvas, bpmnModel, artifact);
}
}
private static void drawHighLight(DefaultProcessDiagramCanvas processDiagramCanvas, GraphicInfo graphicInfo, Color color,FlowNode flowNode) {
if(flowNode instanceof Event){
processDiagramCanvas.drawHighLightEvent((int)graphicInfo.getX(), (int)graphicInfo.getY(), (int)graphicInfo.getWidth(), (int)graphicInfo.getHeight(),color);
}else if(flowNode instanceof Gateway){
processDiagramCanvas.drawHighLightGateway((int)graphicInfo.getX(), (int)graphicInfo.getY(), (int)graphicInfo.getWidth(), (int)graphicInfo.getHeight(),color);
}else if(flowNode instanceof Task){
processDiagramCanvas.drawHighLightTask((int)graphicInfo.getX(), (int)graphicInfo.getY(), (int)graphicInfo.getWidth(), (int)graphicInfo.getHeight(),color);
}else if(flowNode instanceof SubProcess){
processDiagramCanvas.drawHighLightSubProcess((int)graphicInfo.getX(), (int)graphicInfo.getY(), (int)graphicInfo.getWidth(), (int)graphicInfo.getHeight(),color);
}else{
processDiagramCanvas.drawHighLight((int)graphicInfo.getX(), (int)graphicInfo.getY(), (int)graphicInfo.getWidth(), (int)graphicInfo.getHeight(),color);
}
}
protected static DefaultProcessDiagramCanvas initProcessDiagramCanvas(BpmnModel bpmnModel, String imageType, String activityFontName, String labelFontName, String annotationFontName, ClassLoader customClassLoader) {
double minX = 1.7976931348623157E308D;
double maxX = 0.0D;
double minY = 1.7976931348623157E308D;
double maxY = 0.0D;
GraphicInfo graphicInfo;
for(Iterator var14 = bpmnModel.getPools().iterator(); var14.hasNext(); maxY = graphicInfo.getY() + graphicInfo.getHeight()) {
Pool pool = (Pool)var14.next();
graphicInfo = bpmnModel.getGraphicInfo(pool.getId());
minX = graphicInfo.getX();
maxX = graphicInfo.getX() + graphicInfo.getWidth();
minY = graphicInfo.getY();
}
List<FlowNode> flowNodes = gatherAllFlowNodes(bpmnModel);
Iterator var24 = flowNodes.iterator();
label155:
while(var24.hasNext()) {
FlowNode flowNode = (FlowNode)var24.next();
GraphicInfo flowNodeGraphicInfo = bpmnModel.getGraphicInfo(flowNode.getId());
if(flowNodeGraphicInfo.getX() + flowNodeGraphicInfo.getWidth() > maxX) {
maxX = flowNodeGraphicInfo.getX() + flowNodeGraphicInfo.getWidth();
}
if(flowNodeGraphicInfo.getX() < minX) {
minX = flowNodeGraphicInfo.getX();
}
if(flowNodeGraphicInfo.getY() + flowNodeGraphicInfo.getHeight() > maxY) {
maxY = flowNodeGraphicInfo.getY() + flowNodeGraphicInfo.getHeight();
}
if(flowNodeGraphicInfo.getY() < minY) {
minY = flowNodeGraphicInfo.getY();
}
Iterator var18 = flowNode.getOutgoingFlows().iterator();
while(true) {
List graphicInfoList;
do {
if(!var18.hasNext()) {
continue label155;
}
SequenceFlow sequenceFlow = (SequenceFlow)var18.next();
graphicInfoList = bpmnModel.getFlowLocationGraphicInfo(sequenceFlow.getId());
} while(graphicInfoList == null);
Iterator var21 = graphicInfoList.iterator();
while(var21.hasNext()) {
graphicInfo = (GraphicInfo)var21.next();
if(graphicInfo.getX() > maxX) {
maxX = graphicInfo.getX();
}
if(graphicInfo.getX() < minX) {
minX = graphicInfo.getX();
}
if(graphicInfo.getY() > maxY) {
maxY = graphicInfo.getY();
}
if(graphicInfo.getY() < minY) {
minY = graphicInfo.getY();
}
}
}
}
List<Artifact> artifacts = gatherAllArtifacts(bpmnModel);
Iterator var27 = artifacts.iterator();
while(var27.hasNext()) {
Artifact artifact = (Artifact)var27.next();
GraphicInfo artifactGraphicInfo = bpmnModel.getGraphicInfo(artifact.getId());
if(artifactGraphicInfo != null) {
if(artifactGraphicInfo.getX() + artifactGraphicInfo.getWidth() > maxX) {
maxX = artifactGraphicInfo.getX() + artifactGraphicInfo.getWidth();
}
if(artifactGraphicInfo.getX() < minX) {
minX = artifactGraphicInfo.getX();
}
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) {
Iterator var35 = graphicInfoList.iterator();
while(var35.hasNext()) {
graphicInfo = (GraphicInfo)var35.next();
if(graphicInfo.getX() > maxX) {
maxX = graphicInfo.getX();
}
if(graphicInfo.getX() < minX) {
minX = graphicInfo.getX();
}
if(graphicInfo.getY() > maxY) {
maxY = graphicInfo.getY();
}
if(graphicInfo.getY() < minY) {
minY = graphicInfo.getY();
}
}
}
}
int nrOfLanes = 0;
Iterator var30 = bpmnModel.getProcesses().iterator();
while(var30.hasNext()) {
Process process = (Process)var30.next();
Iterator var34 = process.getLanes().iterator();
while(var34.hasNext()) {
Lane l = (Lane)var34.next();
++nrOfLanes;
graphicInfo = bpmnModel.getGraphicInfo(l.getId());
if(graphicInfo.getX() + graphicInfo.getWidth() > maxX) {
maxX = graphicInfo.getX() + graphicInfo.getWidth();
}
if(graphicInfo.getX() < minX) {
minX = graphicInfo.getX();
}
if(graphicInfo.getY() + graphicInfo.getHeight() > maxY) {
maxY = graphicInfo.getY() + graphicInfo.getHeight();
}
if(graphicInfo.getY() < minY) {
minY = graphicInfo.getY();
}
}
}
if(flowNodes.isEmpty() && bpmnModel.getPools().isEmpty() && nrOfLanes == 0) {
minX = 0.0D;
minY = 0.0D;
}
return new DefaultProcessDiagramCanvas((int)maxX + 10, (int)maxY + 10, (int)minX, (int)minY, imageType, activityFontName, labelFontName, annotationFontName, customClassLoader);
}
protected static List<Artifact> gatherAllArtifacts(BpmnModel bpmnModel) {
List<Artifact> artifacts = new ArrayList();
Iterator var2 = bpmnModel.getProcesses().iterator();
while(var2.hasNext()) {
Process process = (Process)var2.next();
artifacts.addAll(process.getArtifacts());
}
return artifacts;
}
protected static List<FlowNode> gatherAllFlowNodes(BpmnModel bpmnModel) {
List<FlowNode> flowNodes = new ArrayList();
Iterator var2 = bpmnModel.getProcesses().iterator();
while(var2.hasNext()) {
Process process = (Process)var2.next();
flowNodes.addAll(gatherAllFlowNodes((FlowElementsContainer)process));
}
return flowNodes;
}
protected static List<FlowNode> gatherAllFlowNodes(FlowElementsContainer flowElementsContainer) {
List<FlowNode> flowNodes = new ArrayList();
Iterator var2 = flowElementsContainer.getFlowElements().iterator();
while(var2.hasNext()) {
FlowElement flowElement = (FlowElement)var2.next();
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 this.activityDrawInstructions;
}
public void setActivityDrawInstructions(Map<Class<? extends BaseElement>, ActivityDrawInstruction> activityDrawInstructions) {
this.activityDrawInstructions = activityDrawInstructions;
}
public Map<Class<? extends BaseElement>, ArtifactDrawInstruction> getArtifactDrawInstructions() {
return this.artifactDrawInstructions;
}
public void setArtifactDrawInstructions(Map<Class<? extends BaseElement>, ArtifactDrawInstruction> artifactDrawInstructions) {
this.artifactDrawInstructions = artifactDrawInstructions;
}
protected interface ArtifactDrawInstruction {
void draw(DefaultProcessDiagramCanvas var1, BpmnModel var2, Artifact var3);
}
protected interface ActivityDrawInstruction {
void draw(DefaultProcessDiagramCanvas var1, BpmnModel var2, FlowNode var3);
}
}
方法的引用
imageStream = new DefaultProcessDiagramGenerator().generateDiagram(
bpmnModel,
"png",
highLightedFinishes,//所有活动过的节点，包括当前在激活状态下的节点
activeActivityIds,//当前为激活状态下的节点
highLightedFlows,//活动过的线
"宋体",
"宋体",
"宋体",
processEngineConfiguration.getClassLoader(),
1.0);
修改后的效果，已活动过的节点为绿色，正在激活状态下的节点为橙色
也可根据需要再另行修改
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