// 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.*;
import java.util.Iterator;
import java.util.NoSuchElementException;
import java.util.Set;
import java.util.Map;
import org.w3c.dom.Element;
import org.w3c.dom.svg.SVGDocument;
import org.apache.axiom.om.OMElement;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
public class ProcessImpl extends ActivityImpl implements org.wso2.carbon.bpel.ui.bpel2svg.ProcessInterface {
private Log log = LogFactory.getLog(ActivityImpl.class);
public ProcessImpl(String token) {
super(token);
// Set Icon and Size
startIconPath = org.wso2.carbon.bpel.ui.bpel2svg.BPEL2SVGFactory.getInstance().getIconPath(this.getClass().getName());
endIconPath = org.wso2.carbon.bpel.ui.bpel2svg.BPEL2SVGFactory.getInstance().getEndIconPath(this.getClass().getName());
endIconHeight = startIconHeight;
endIconWidth = startIconWidth;
}
public ProcessImpl(OMElement omElement) {
super(omElement);
// Set Icon and Size
startIconPath = org.wso2.carbon.bpel.ui.bpel2svg.BPEL2SVGFactory.getInstance().getIconPath(this.getClass().getName());
endIconPath = org.wso2.carbon.bpel.ui.bpel2svg.BPEL2SVGFactory.getInstance().getEndIconPath(this.getClass().getName());
endIconHeight = startIconHeight;
endIconWidth = startIconWidth;
}
public ProcessImpl(OMElement omElement, ActivityInterface parent) {
super(omElement);
setParent(parent);
// Set Icon and Size
startIconPath = BPEL2SVGFactory.getInstance().getIconPath(this.getClass().getName());
endIconPath = BPEL2SVGFactory.getInstance().getEndIconPath(this.getClass().getName());
endIconHeight = startIconHeight;
endIconWidth = startIconWidth;
}
@Override
public String getId() {
return getName() + "-Process";
}
@Override
public Element getSVGString(SVGDocument document) {
LayoutManager layoutManager = org.wso2.carbon.bpel.ui.bpel2svg.BPEL2SVGFactory.getInstance().getLayoutManager();
// Build Specific Code
//attention--------- getSVGFileHeader();
doc = (SVGDocument) dom.createDocument(svgNS, "svg", null);
root = doc.getDocumentElement();
root.setAttributeNS(null, "height", "1000");
root.appendChild(getDefs(doc));
root.appendChild(getBoxDefinition(doc));
root.appendChild(getImageDefinition(doc));
// Process Sub Activities
root.appendChild(getSubActivitiesSVGString(doc));
root.appendChild(getEndImageDefinition(doc));
// Add Arrow
root.appendChild(getArrows(doc));
// Add End Tag
// getSCGFileFooter(); //this isn't used
return root;
}
public SVGDocument getSVGDocument() {
LayoutManager layoutManager = org.wso2.carbon.bpel.ui.bpel2svg.BPEL2SVGFactory.getInstance().getLayoutManager();
// Build Specific Code
//attention--------- getSVGFileHeader();
doc = (SVGDocument) dom.createDocument(svgNS, "svg", null);
root = doc.getDocumentElement();
int iHeight = getDimensions().getHeight();
int iWidth = getDimensions().getWidth();
root.setAttributeNS(null, "height", Integer.toString(iHeight));
root.setAttributeNS(null, "width", Integer.toString(iWidth));
root.appendChild(getDefs(doc));
root.appendChild(getBoxDefinition(doc));
root.appendChild(getImageDefinition(doc));
// Process Sub Activities
root.appendChild(getSubActivitiesSVGString(doc));
root.appendChild(getEndImageDefinition(doc));
// Add Arrow
root.appendChild(getArrows(doc));
root.appendChild(getLinkArrows(doc)); //waruna
// Add End Tag
// getSCGFileFooter(); //this isn't used
return doc; //To change body of implemented methods use File | Settings | File Templates.
}
//the following method should be removed.It's auto completed by Batik. But width and height should be changed.
private String getSVGFileHeader() {
StringBuffer svgSB = new StringBuffer();
// Build Specific Code
svgSB.append("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n");
svgSB.append("<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1 Tiny//EN\"\n\t\"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11-tiny.dtd\">\n");
svgSB.append("<!-- Created with Oen ESB SVG Generator http://blogs.sun.com/toxophily/ -->\n");
svgSB.append("<svg\n");
svgSB.append("\txmlns=\"http://www.w3.org/2000/svg\"\n");
// svgSB.append("\txmlns:svg=\"http://www.w3.org/2000/svg\"\n");
svgSB.append("\txmlns:xlink=\"http://www.w3.org/1999/xlink\"\n");
// svgSB.append("\txmlns:inkscape=\"http://www.inkscape.org/namespaces/inkscape\"\n");
svgSB.append("\tversion=\"1.1\" baseProfile=\"tiny\"\n");
// TODO : Fix Sizing
svgSB.append("\twidth=\"" + dimensions.getWidth() * 2 + "\"\n");
svgSB.append("\theight=\"" + dimensions.getHeight() * 2 + "\"\n");
svgSB.append("\tid=\"" + getId() + "\">\n");
return svgSB.toString();
}
private String getSCGFileFooter() {
return "</svg>\n";
}
protected Element getDefs(SVGDocument doc) {
Element defs = doc.createElementNS("http://www.w3.org/2000/svg", "defs");
defs.setAttributeNS(null, "id", "defs4");
Element marker1 = doc.createElementNS("http://www.w3.org/2000/svg", "marker");
marker1.setAttributeNS(null, "refX", "0");
marker1.setAttributeNS(null, "refY", "0");
marker1.setAttributeNS(null, "orient", "auto");
marker1.setAttributeNS(null, "id", "Arrow1Lend");
marker1.setAttributeNS(null, "style", "overflow:visible");
Element path1 = doc.createElementNS("http://www.w3.org/2000/svg", "path");
path1.setAttributeNS(null, "d", "M 0,0 L 5,-5 L -12.5,0 L 5,5 L 0,0 z");
path1.setAttributeNS(null, "transform", "matrix(-0.8,0,0,-0.8,-10,0)");
path1.setAttributeNS(null, "id", "path3166");
path1.setAttributeNS(null, "style", "fill-rule:evenodd;stroke:#000000;stroke-width:1pt;marker-start:none");
Element marker2 = doc.createElementNS("http://www.w3.org/2000/svg", "marker");
marker2.setAttributeNS(null, "refX", "0");
marker2.setAttributeNS(null, "refY", "0");
marker2.setAttributeNS(null, "orient", "auto");
marker2.setAttributeNS(null, "id", "Arrow1Mend");
marker2.setAttributeNS(null, "style", "overflow:visible");
Element path2 = doc.createElementNS("http://www.w3.org/2000/svg", "path");
path2.setAttributeNS(null, "d", "M 0,0 L 5,-5 L -12.5,0 L 5,5 L 0,0 z");
path2.setAttributeNS(null, "transform", "matrix(-0.8,0,0,-0.8,-10,0)");
path2.setAttributeNS(null, "id", "path3193");
path2.setAttributeNS(null, "style", "fill-rule:evenodd;stroke:#000000;stroke-width:1pt;marker-start:none");
Element linkMarker = doc.createElementNS("http://www.w3.org/2000/svg", "marker");
linkMarker.setAttributeNS(null, "refX", "0");
linkMarker.setAttributeNS(null, "refY", "0");
linkMarker.setAttributeNS(null, "orient", "auto");
linkMarker.setAttributeNS(null, "id", "LinkArrow");
linkMarker.setAttributeNS(null, "style", "overflow:visible");
Element linkPath = doc.createElementNS("http://www.w3.org/2000/svg", "path");
// linkPath.setAttributeNS(null, "d", "M 0,0 L 2.5,-7.5 L -1,0 L 2.5,7.5 L 0,0 z");
linkPath.setAttributeNS(null, "d", "M -11.5,0 L -7,-7.5 L -12.5,0 L -7,7.5 L -11.5,0 z");
linkPath.setAttributeNS(null, "transform", "matrix(-0.8,0,0,-0.8,-10,0)");
linkPath.setAttributeNS(null, "id", "linkPath");
linkPath.setAttributeNS(null, "style", "fill-rule:evenodd;stroke:#000000;stroke-width:1pt;marker-start:none");
Element linearGradient = doc.createElementNS("http://www.w3.org/2000/svg", "linearGradient");
linearGradient.setAttributeNS(null, "id", "orange_red");
linearGradient.setAttributeNS(null, "x1" ,"0%");
linearGradient.setAttributeNS(null, "y1", "0%");
linearGradient.setAttributeNS(null, "x2" ,"0%");
linearGradient.setAttributeNS(null, "y2", "100%");
Element stop1 = doc.createElementNS("http://www.w3.org/2000/svg", "stop");
stop1.setAttributeNS(null, "offset", "0%");
stop1.setAttributeNS(null, "style", "stop-color:rgb(255,255,255);stop-opacity:1");
Element stop2 = doc.createElementNS("http://www.w3.org/2000/svg", "stop"); //these should be taken from the svg factory
stop2.setAttributeNS(null, "offset", "100%");
stop2.setAttributeNS(null, "style", "stop-color:rgb(0,0,255);stop-opacity:1"); //these should be taken from the svg factory
marker1.appendChild(path1);
marker2.appendChild(path2);
linkMarker.appendChild(linkPath);
defs.appendChild(marker1);
defs.appendChild(marker2);
defs.appendChild(linkMarker);
linearGradient.appendChild(stop1);
linearGradient.appendChild(stop2);
defs.appendChild(linearGradient);
return defs;
}
protected Element getArrows(SVGDocument doc) {
Element group = doc.createElementNS("http://www.w3.org/2000/svg", "g");
if (subActivities != null) {
ActivityInterface startActivity = subActivities.get(0);
ActivityInterface endActivity = subActivities.get(subActivities.size() - 1);
startActivity = endActivity; // Should ignore event/fault handlers
org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates exitCoords = getExitArrowCoords();
group.appendChild(getArrowDefinition(doc, exitCoords.getXLeft(),
exitCoords.getYTop(), startActivity.getEntryArrowCoords().getXLeft(),
startActivity.getEntryArrowCoords().getYTop(), name,
startActivity, endActivity));
org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates entryCoords = getEndEntryArrowCoords();
group.appendChild(getArrowDefinition(doc, endActivity.getExitArrowCoords().getXLeft(),
endActivity.getExitArrowCoords().getYTop(), entryCoords.getXLeft(),
entryCoords.getYTop(), name, startActivity, endActivity));
}
return group;
}
private Element getLinkArrows(SVGDocument doc) {
Element group = doc.createElementNS("http://www.w3.org/2000/svg", "g");
if (links != null && !links.isEmpty()) {
Set linksSet = links.entrySet();
Iterator linksIterator = linksSet.iterator();
while(linksIterator.hasNext()){
Map.Entry<String, Link> link = (Map.Entry<String, Link>)linksIterator.next();
ActivityInterface startActivity = link.getValue().getSource();
ActivityInterface endActivity = link.getValue().getTarget();
String linkName = link.getKey();
//Element pathGroup = doc.createElementNS("http://www.w3.org/2000/svg", "g");
//group.setAttributeNS("xlink", "title", linkName);
group.appendChild(drawLink(doc, startActivity.getExitArrowCoords().getXLeft(),
startActivity.getExitArrowCoords().getYTop(), endActivity.getEntryArrowCoords().getXLeft(),
endActivity.getEntryArrowCoords().getYTop(), startActivity.getStartIconWidth(),
link.getKey(), linkName));
//group.appendChild(pathGroup);
}
}
return group;
}
private Element drawLink(SVGDocument doc, int startX, int startY, int endX, int endY, int startIconWidth, String id, String linkName)
{
Element path = doc.createElementNS("http://www.w3.org/2000/svg", "path");
int firstBend = 20;
if(layoutManager.isVerticalLayout()){
if (startY < endY) {
path.setAttributeNS(null, "d", "M " + startX + "," + startY + " L " + startX + "," + (startY + firstBend) +
" L " + startX + "," + (startY + firstBend) + " L " + endX + "," + (startY + firstBend) +
" L " + endX + "," + endY); //use constants for these propotions
}
else {
if (startX > endX) {
path.setAttributeNS(null, "d", "M " + startX + "," + startY + " L " + startX + "," + (startY + firstBend) +
" L " + (startX - (startIconWidth/2 + firstBend)) + "," + (startY + firstBend) + " L " +
(startX - (startIconWidth/2 + firstBend)) + "," + (endY - firstBend) + " L " + endX + "," + (endY - firstBend)+
" L " + endX + "," + endY); //use constants for these propotions
}
else {
path.setAttributeNS(null, "d", "M " + startX + "," + startY + " L " + startX + "," + (startY + firstBend) +
" L " + (startX + (startIconWidth/2 + firstBend)) + "," + (startY + firstBend) + " L " +
(startX + (startIconWidth/2 + firstBend)) + "," + (endY - firstBend) + " L " + endX + "," + (endY - firstBend)+
" L " + endX + "," + endY);
}
}
}else{
path.setAttributeNS(null, "d", "M " + startX + "," + startY + " L " + ((startX + 1* endX) / 2) + "," + startY + " L " + ((startX + 1* endX) / 2) + "," + endY + " L " + endX + "," + endY); //use constants for these propotions
}
path.setAttributeNS(null, "id", id);
path.setAttributeNS(null, "style", getLinkArrowStyle());
path.setAttributeNS("xlink", "title", linkName);
//path.setAttributeNS(null, "style", "opacity:" + getIconOpacity());
//path.setAttributeNS(null, "onmouseover", "this.style.opacity=1;this.filters.alpha.opacity=100");
//path.setAttributeNS(null, "onmouseout", "this.style.opacity=" + getIconOpacity() + ";this.filters.alpha.opacity=25");
path.setAttributeNS(null, "onmouseover", "this.style.opacity=1;this.filters.alpha.opacity=100");
path.setAttributeNS(null, "onmouseout", "this.style.opacity=" + getIconOpacity(getState()) + ";this.filters.alpha.opacity=100");
//path.setAttributeNS(null, "onload", "this.style.opacity=" + getIconOpacity() + ";this.filters.alpha.opacity=100");
// path.setAttributeNS(null, "onmousemove", "this.style.opacity=1;this.filters.alpha.opacity=100");
return path;
}
@Override
public String getEndTag() {
return org.wso2.carbon.bpel.ui.bpel2svg.BPEL2SVGFactory.PROCESS_END_TAG;
}
@Override
public SVGDimension getDimensions() {
if (dimensions == null) {
int width = 0;
int height = 0;
dimensions = new SVGDimension(width, height);
org.wso2.carbon.bpel.ui.bpel2svg.SVGDimension subActivityDim = null;
ActivityInterface activity = null;
Iterator<ActivityInterface> itr = getSubActivities().iterator();
try {
while (itr.hasNext()) {
activity = itr.next();
subActivityDim = activity.getDimensions();
if (subActivityDim.getWidth() > width) {
width += subActivityDim.getWidth();
}
height += subActivityDim.getHeight();
}
} catch (NoSuchElementException e) {
log.error("Invalid Element access", e);
//throw new Exception("Error in reading Dimensions", e);
}
height += ((getYSpacing() * 2) + getStartIconHeight() + getEndIconHeight());
width += getXSpacing();
dimensions.setWidth(width);
dimensions.setHeight(height);
layoutManager.setSvgHeight(height);
layoutManager.setSvgWidth(width);
if (!layoutManager.isVerticalLayout()) {
switchDimensionsToHorizontal();
}
}
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);
ActivityInterface activity = null;
Iterator<ActivityInterface> itr = getSubActivities().iterator();
int childYTop = yTop + getStartIconHeight() + (getYSpacing() / 2);
int childXLeft = startXLeft + (getXSpacing() / 2);
while (itr.hasNext()) {
activity = itr.next();
activity.layout(childXLeft, childYTop);
childYTop += activity.getDimensions().getHeight();
}
// Set the values
setStartIconXLeft(xLeft);
setStartIconYTop(yTop);
setEndIconXLeft(endXLeft);
setEndIconYTop(endYTop);
getDimensions().setXLeft(startXLeft); //TODO why startXleft not Xleft?
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 = xLeft + getStartIconWidth() + (getYSpacing() / 2);
int childYTop = startYTop + (getXSpacing() / 2);
while (itr.hasNext()) {
activity = itr.next();
activity.layout(childXLeft, childYTop);
childXLeft += activity.getDimensions().getWidth();
}
// Set the values
setStartIconXLeft(xLeft);
setStartIconYTop(yTop);
setEndIconXLeft(endXLeft);
setEndIconYTop(endYTop);
getDimensions().setXLeft(startXLeft);
getDimensions().setYTop(startYTop);
}
@Override
public org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates getExitArrowCoords() {
int xLeft = getStartIconXLeft() + (getStartIconWidth() / 2);
int yTop = getStartIconYTop() + getStartIconHeight();
if (!layoutManager.isVerticalLayout()) {
xLeft = getStartIconXLeft() + getStartIconWidth();
yTop = getStartIconYTop() + (getStartIconHeight() / 2);
}
org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates coords = new org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates(xLeft, yTop);
return coords;
}
public org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates getEndEntryArrowCoords() {
int xLeft = getEndIconXLeft() + (getEndIconWidth() / 2);
int yTop = getEndIconYTop();
if (!layoutManager.isVerticalLayout()) {
xLeft = getEndIconXLeft();
yTop = getEndIconYTop() + (getEndIconHeight() / 2);
}
org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates coords = new org.wso2.carbon.bpel.ui.bpel2svg.SVGCoordinates(xLeft, yTop);
return coords;
}
@Override
public boolean isAddOpacity() {
return isAddCompositeActivityOpacity();
}
@Override
public double getOpacity() {
return getCompositeOpacity();
}
}