package org.activiti.designer.features;
import java.util.List;
import org.activiti.bpmn.model.Lane;
import org.activiti.bpmn.model.ServiceTask;
import org.activiti.bpmn.model.SubProcess;
import org.activiti.bpmn.model.Task;
import org.activiti.designer.integration.servicetask.CustomServiceTask;
import org.activiti.designer.integration.servicetask.DiagramBaseShape;
import org.activiti.designer.util.eclipse.ActivitiUiUtil;
import org.activiti.designer.util.extension.ExtensionUtil;
import org.activiti.designer.util.platform.OSEnum;
import org.activiti.designer.util.platform.OSUtil;
import org.activiti.designer.util.style.StyleUtil;
import org.eclipse.graphiti.features.IDirectEditingInfo;
import org.eclipse.graphiti.features.IFeatureProvider;
import org.eclipse.graphiti.features.context.IAddContext;
import org.eclipse.graphiti.features.impl.AbstractAddShapeFeature;
import org.eclipse.graphiti.mm.algorithms.Ellipse;
import org.eclipse.graphiti.mm.algorithms.GraphicsAlgorithm;
import org.eclipse.graphiti.mm.algorithms.Image;
import org.eclipse.graphiti.mm.algorithms.MultiText;
import org.eclipse.graphiti.mm.algorithms.Polygon;
import org.eclipse.graphiti.mm.algorithms.Rectangle;
import org.eclipse.graphiti.mm.algorithms.RoundedRectangle;
import org.eclipse.graphiti.mm.algorithms.styles.Orientation;
import org.eclipse.graphiti.mm.pictograms.BoxRelativeAnchor;
import org.eclipse.graphiti.mm.pictograms.ContainerShape;
import org.eclipse.graphiti.mm.pictograms.Diagram;
import org.eclipse.graphiti.mm.pictograms.PictogramElement;
import org.eclipse.graphiti.mm.pictograms.Shape;
import org.eclipse.graphiti.services.Graphiti;
import org.eclipse.graphiti.services.IGaService;
import org.eclipse.graphiti.services.IPeCreateService;
public abstract class AddTaskFeature extends AbstractAddShapeFeature {
private static final int IMAGE_SIZE = 16;
public AddTaskFeature(IFeatureProvider fp) {
super(fp);
}
@Override
public PictogramElement add(IAddContext context) {
final Task addedTask = (Task) context.getNewObject();
final ContainerShape parent = context.getTargetContainer();
// CONTAINER SHAPE WITH ROUNDED RECTANGLE
final IPeCreateService peCreateService = Graphiti.getPeCreateService();
final ContainerShape containerShape = peCreateService.createContainerShape(parent, true);
final IGaService gaService = Graphiti.getGaService();
DiagramBaseShape baseShape = DiagramBaseShape.ACTIVITY;
if (ExtensionUtil.isCustomServiceTask(addedTask)) {
final ServiceTask serviceTask = (ServiceTask) addedTask;
final List<CustomServiceTask> customServiceTasks = ExtensionUtil.getCustomServiceTasks(ActivitiUiUtil.getProjectFromDiagram(getDiagram()));
CustomServiceTask targetTask = null;
for (final CustomServiceTask customServiceTask : customServiceTasks) {
if (customServiceTask.getId().equals(serviceTask.getExtensionId())) {
targetTask = customServiceTask;
break;
}
}
if (!DiagramBaseShape.ACTIVITY.equals(targetTask.getDiagramBaseShape())) {
baseShape = targetTask.getDiagramBaseShape();
}
}
int width = 0;
int height = 0;
GraphicsAlgorithm algorithm = null;
switch (baseShape) {
case ACTIVITY:
// check whether the context has a size (e.g. from a create feature)
// otherwise define a default size for the shape
width = context.getWidth() <= 0 ? 105 : context.getWidth();
height = context.getHeight() <= 0 ? 55 : context.getHeight();
RoundedRectangle roundedRectangle; // need to access it later
{
// create invisible outer rectangle expanded by
// the width needed for the anchor
final Rectangle invisibleRectangle = gaService.createInvisibleRectangle(containerShape);
gaService.setLocationAndSize(invisibleRectangle, context.getX(), context.getY(), width, height);
// create and set visible rectangle inside invisible rectangle
roundedRectangle = gaService.createRoundedRectangle(invisibleRectangle, 20, 20);
algorithm = roundedRectangle;
roundedRectangle.setParentGraphicsAlgorithm(invisibleRectangle);
roundedRectangle.setStyle(StyleUtil.getStyleForTask(getDiagram()));
gaService.setLocationAndSize(roundedRectangle, 0, 0, width, height);
// create link and wire it
link(containerShape, addedTask);
}
break;
case GATEWAY:
// check whether the context has a size (e.g. from a create feature)
// otherwise define a default size for the shape
width = context.getWidth() <= 0 ? 60 : context.getWidth();
height = context.getHeight() <= 0 ? 60 : context.getHeight();
Polygon polygon;
{
int xy[] = new int[] { 0, 30, 30, 0, 60, 30, 30, 60, 0, 30 };
final Polygon invisiblePolygon = gaService.createPolygon(containerShape, xy);
invisiblePolygon.setFilled(false);
invisiblePolygon.setLineVisible(false);
gaService.setLocationAndSize(invisiblePolygon, context.getX(), context.getY(), width, height);
// create and set visible circle inside invisible circle
polygon = gaService.createPolygon(invisiblePolygon, xy);
algorithm = polygon;
polygon.setParentGraphicsAlgorithm(invisiblePolygon);
polygon.setStyle(StyleUtil.getStyleForTask(getDiagram()));
gaService.setLocationAndSize(polygon, 0, 0, width, height);
// create link and wire it
link(containerShape, addedTask);
}
break;
case EVENT:
// check whether the context has a size (e.g. from a create feature)
// otherwise define a default size for the shape
width = context.getWidth() <= 0 ? 55 : context.getWidth();
height = context.getHeight() <= 0 ? 55 : context.getHeight();
Ellipse circle;
{
final Ellipse invisibleCircle = gaService.createEllipse(containerShape);
invisibleCircle.setFilled(false);
invisibleCircle.setLineVisible(false);
gaService.setLocationAndSize(invisibleCircle, context.getX(), context.getY(), width, height);
// create and set visible circle inside invisible circle
circle = gaService.createEllipse(invisibleCircle);
circle.setParentGraphicsAlgorithm(invisibleCircle);
circle.setStyle(StyleUtil.getStyleForTask(getDiagram()));
gaService.setLocationAndSize(circle, 0, 0, width, height);
// create link and wire it
link(containerShape, addedTask);
}
break;
}
// SHAPE WITH TEXT
{
// create shape for text
final Shape shape = peCreateService.createShape(containerShape, false);
// create and set text graphics algorithm
final MultiText text = gaService.createDefaultMultiText(getDiagram(), shape, addedTask.getName());
text.setStyle(StyleUtil.getStyleForTask(getDiagram()));
text.setHorizontalAlignment(Orientation.ALIGNMENT_CENTER);
text.setVerticalAlignment(Orientation.ALIGNMENT_CENTER);
if (OSUtil.getOperatingSystem() == OSEnum.Mac) {
text.setFont(gaService.manageFont(getDiagram(), text.getFont().getName(), 11));
}
switch (baseShape) {
case ACTIVITY:
gaService.setLocationAndSize(text, 0, 20, width, height - 25);
break;
case GATEWAY:
gaService.setLocationAndSize(text, 0, height + 5, width, 40);
break;
case EVENT:
gaService.setLocationAndSize(text, 0, height + 5, width, 40);
break;
}
// create link and wire it
link(shape, addedTask);
// provide information to support direct-editing directly
// after object creation (must be activated additionally)
final IDirectEditingInfo directEditingInfo = getFeatureProvider().getDirectEditingInfo();
// set container shape for direct editing after object creation
directEditingInfo.setMainPictogramElement(containerShape);
// set shape and graphics algorithm where the editor for
// direct editing shall be opened after object creation
directEditingInfo.setPictogramElement(shape);
directEditingInfo.setGraphicsAlgorithm(text);
}
{
final Shape shape = peCreateService.createShape(containerShape, false);
final Image image = gaService.createImage(shape, getIcon(addedTask));
switch (baseShape) {
case ACTIVITY:
gaService.setLocationAndSize(image, 5, 5, IMAGE_SIZE, IMAGE_SIZE);
break;
case GATEWAY:
gaService.setLocationAndSize(image, (width - IMAGE_SIZE) / 2, (height - IMAGE_SIZE) / 2, IMAGE_SIZE, IMAGE_SIZE);
break;
case EVENT:
gaService.setLocationAndSize(image, (width - IMAGE_SIZE) / 2, (height - IMAGE_SIZE) / 2, IMAGE_SIZE, IMAGE_SIZE);
break;
}
}
// add a chopbox anchor to the shape
peCreateService.createChopboxAnchor(containerShape);
// create an additional box relative anchor at middle-right
final BoxRelativeAnchor boxAnchor = peCreateService.createBoxRelativeAnchor(containerShape);
boxAnchor.setRelativeWidth(1.0);
boxAnchor.setRelativeHeight(0.51);
boxAnchor.setReferencedGraphicsAlgorithm(algorithm);
final Ellipse ellipse = ActivitiUiUtil.createInvisibleEllipse(boxAnchor, gaService);
gaService.setLocationAndSize(ellipse, 0, 0, 0, 0);
layoutPictogramElement(containerShape);
return containerShape;
}
@Override
public boolean canAdd(IAddContext context) {
if (context.getNewObject() instanceof Task) {
Object parentObject = getBusinessObjectForPictogramElement(context.getTargetContainer());
if (context.getTargetContainer() instanceof Diagram ||
parentObject instanceof SubProcess || parentObject instanceof Lane) {
return true;
}
}
return false;
}
protected abstract String getIcon(Object bo);
}