// This code is taken from WSO2 Carbon and is licensed by WSO2, Inc.
// under the Apache License version 2.0 http://www.apache.org/licenses/LICENSE-2.0.html
package org.wso2.carbon.bpel.ui.bpel2svg.impl;
import org.wso2.carbon.bpel.ui.bpel2svg.ActivityInterface;
import org.wso2.carbon.bpel.ui.bpel2svg.BPEL2SVGFactory;
import org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates;
import org.wso2.carbon.bpel.ui.bpel2svg.SVGDimension;
import java.util.Iterator;
import org.w3c.dom.Element;
import org.w3c.dom.svg.SVGDocument;
import org.apache.axiom.om.OMElement;
public class EventHandlerImpl extends ActivityImpl implements org.wso2.carbon.bpel.ui.bpel2svg.EventHandlerInterface {
public EventHandlerImpl(String token) {
super(token);
if (name == null) {
name = "EVENTHANDLER" + System.currentTimeMillis();
}
displayName = "Event Handlers";
// Set Icon and Size
startIconPath = org.wso2.carbon.bpel.ui.bpel2svg.BPEL2SVGFactory.getInstance().getIconPath(this.getClass().getName());
endIconPath = BPEL2SVGFactory.getInstance().getEndIconPath(this.getClass().getName());
// Set Layout
setVerticalChildLayout(false);
}
public EventHandlerImpl(OMElement omElement) {
super(omElement);
if (name == null) {
name = "EVENTHANDLER" + System.currentTimeMillis();
}
displayName = "Event Handlers";
// Set Icon and Size
startIconPath = BPEL2SVGFactory.getInstance().getIconPath(this.getClass().getName());
endIconPath = org.wso2.carbon.bpel.ui.bpel2svg.BPEL2SVGFactory.getInstance().getEndIconPath(this.getClass().getName());
// Set Layout
setVerticalChildLayout(false);
}
public EventHandlerImpl(OMElement omElement, ActivityInterface parent) {
super(omElement);
setParent(parent);
if (name == null) {
name = "EVENTHANDLER" + System.currentTimeMillis();
}
displayName = "Event Handlers";
// Set Icon and Size
startIconPath = BPEL2SVGFactory.getInstance().getIconPath(this.getClass().getName());
endIconPath = org.wso2.carbon.bpel.ui.bpel2svg.BPEL2SVGFactory.getInstance().getEndIconPath(this.getClass().getName());
// Set Layout
setVerticalChildLayout(false);
}
@Override
public String getId() {
return getName(); // + "-EventHandler";
}
@Override
public String getEndTag() {
return BPEL2SVGFactory.EVENTHANDLER_END_TAG;
}
@Override
public SVGDimension getDimensions() {
if (dimensions == null) {
int width = 0;
int height = 0;
dimensions = new org.wso2.carbon.bpel.ui.bpel2svg.SVGDimension(width, height);
org.wso2.carbon.bpel.ui.bpel2svg.SVGDimension subActivityDim = null;
org.wso2.carbon.bpel.ui.bpel2svg.ActivityInterface activity = null;
Iterator<ActivityInterface> itr = getSubActivities().iterator();
while (itr.hasNext()) {
activity = itr.next();
subActivityDim = activity.getDimensions();
if (subActivityDim.getHeight() > height) {
height += subActivityDim.getHeight();
}
width += subActivityDim.getWidth();
}
height += getYSpacing();
width += getXSpacing();
dimensions.setWidth(width);
dimensions.setHeight(height);
}
return dimensions;
}
@Override
public void layout(int startXLeft, int startYTop) {
if (layoutManager.isVerticalLayout()) {
layoutVertical(startXLeft, startYTop);
} else {
layoutHorizontal(startXLeft, startYTop);
}
}
public void layoutVertical(int startXLeft, int startYTop) {
int centreOfMyLayout = startXLeft + (dimensions.getWidth() / 2);
int xLeft = centreOfMyLayout - (getStartIconWidth() / 2);
int yTop = startYTop + (getYSpacing() / 2);
int endXLeft = centreOfMyLayout - (getEndIconWidth() / 2);
int endYTop = startYTop + dimensions.getHeight() - getEndIconHeight() - (getYSpacing() / 2);
org.wso2.carbon.bpel.ui.bpel2svg.ActivityInterface activity = null;
Iterator<org.wso2.carbon.bpel.ui.bpel2svg.ActivityInterface> itr = getSubActivities().iterator();
int childYTop = startYTop + (getYSpacing() / 2);
int childXLeft = startXLeft + (getXSpacing() / 2);
while (itr.hasNext()) {
activity = itr.next();
// childYTop += centreOfMyLayout - (activity.getDimensions().getHeight() / 2);
activity.layout(childXLeft, childYTop);
childXLeft += activity.getDimensions().getWidth();
}
// Set the values
setStartIconXLeft(xLeft);
setStartIconYTop(yTop);
setEndIconXLeft(endXLeft);
setEndIconYTop(endYTop);
setStartIconTextXLeft(startXLeft + BOX_MARGIN);
setStartIconTextYTop(startYTop + BOX_MARGIN + org.wso2.carbon.bpel.ui.bpel2svg.BPEL2SVGFactory.TEXT_ADJUST);
getDimensions().setXLeft(startXLeft);
getDimensions().setYTop(startYTop);
}
private void layoutHorizontal(int startXLeft, int startYTop) {
int centreOfMyLayout = startYTop + (dimensions.getHeight() / 2);
int xLeft = startXLeft + (getYSpacing() / 2);
int yTop = centreOfMyLayout - (getStartIconHeight() / 2);
int endXLeft = startXLeft + dimensions.getWidth() - getEndIconWidth() - (getYSpacing() / 2);
int endYTop = centreOfMyLayout - (getEndIconHeight() / 2);
ActivityInterface activity = null;
Iterator<ActivityInterface> itr = getSubActivities().iterator();
int childXLeft = startXLeft + (getYSpacing() / 2);
int childYTop = startYTop + (getXSpacing() / 2);
while (itr.hasNext()) {
activity = itr.next();
// childXLeft = centreOfMyLayout - activity.getDimensions().getWidth() / 2;
activity.layout(childXLeft, childYTop);
childYTop += activity.getDimensions().getHeight();
}
// Set the values
setStartIconXLeft(xLeft);
setStartIconYTop(yTop);
setEndIconXLeft(endXLeft);
setEndIconYTop(endYTop);
setStartIconTextXLeft(startXLeft + BOX_MARGIN);
setStartIconTextYTop(startYTop + BOX_MARGIN + org.wso2.carbon.bpel.ui.bpel2svg.BPEL2SVGFactory.TEXT_ADJUST);
getDimensions().setXLeft(startXLeft);
getDimensions().setYTop(startYTop);
}
@Override
public SVGCoordinates getEntryArrowCoords() {
int xLeft = 0;
int yTop = 0;
if (layoutManager.isVerticalLayout()) {
xLeft = getDimensions().getXLeft() + (getDimensions().getWidth() / 2);
yTop = getDimensions().getYTop() + BOX_MARGIN;
} else {
xLeft = getDimensions().getXLeft() + BOX_MARGIN;
yTop = getDimensions().getYTop() + (getDimensions().getHeight() / 2);
}
SVGCoordinates coords = new SVGCoordinates(xLeft, yTop);
return coords;
}
@Override
public org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates getExitArrowCoords() {
int xLeft = 0;
int yTop = 0;
if (layoutManager.isVerticalLayout()) {
xLeft = getEndIconXLeft() + (getEndIconWidth() / 2);
yTop = getEndIconYTop() + getEndIconHeight();
} else {
xLeft = getEndIconXLeft() + getEndIconWidth();
yTop = getEndIconYTop() + (getEndIconHeight() / 2);
}
SVGCoordinates coords = new SVGCoordinates(xLeft, yTop);
return coords;
}
@Override
public Element getSVGString(SVGDocument doc) {
Element group = null;
group = doc.createElementNS("http://www.w3.org/2000/svg", "g");
group.setAttributeNS(null, "id", getLayerId());
// Check if Layer & Opacity required
if (isAddOpacity()) {
group.setAttributeNS(null, "style", "opacity:" + getOpacity());
}
group.appendChild(getBoxDefinition(doc));
group.appendChild(getImageDefinition(doc));
group.appendChild(getStartImageText(doc));
// Process Sub Activities
group.appendChild(getSubActivitiesSVGString(doc));
group.appendChild(getEndImageDefinition(doc));
//Add Arrow
//group.appendChild(getArrows()); attention - this has no implementaion
return group;
}
protected String getArrows() {
StringBuffer svgSB = new StringBuffer();
return svgSB.toString();
}
@Override
public boolean isAddOpacity() {
return isAddCompositeActivityOpacity();
}
@Override
public double getOpacity() {
return getCompositeOpacity();
}
}