private void prepareLanes(BPMNElement lane, int level) {
maxLaneDepth = Math.max(maxLaneDepth, level);
List<BPMNElement> childs = new ArrayList<BPMNElement>();
BPMNElement aChild = null;
for (LayoutingElement c : diagram.getChildElementsOf(lane)) {
BPMNElement child = (BPMNElement) c;
if (BPMNType.isASwimlane(child.getType())) {
prepareLanes(child, level + 1);
childs.add(child);
}
aChild = child;
}
// Create Grid for lane (=
// aChild.getParent())
if (aChild != null) {
getContextByElement(aChild);
} else {
// create empty grid for empty lanes
// to prevent nullpointer-exception
GridContext result = new GridContext();
result.grid = new Grid<BPMNElement>();
result.startCell = result.grid.getFirstRow().getFirstCell();
superGrid.add(result.grid);
parent2Context.put(lane, result);
}
lane2LaneChilds.put(lane, childs);
}
/**
* @param lane
* @param absY
* @param level
*/
private void correctLaneElements(BPMNElement lane, double absY, int level) {
List<BPMNElement> childs = lane2LaneChilds.get(lane);
double height = 0;
for (BPMNElement child : childs) {
correctLaneElements(child, absY + height, level + 1);
height += child.getGeometry().getHeight();
}
int xTrans = level * -LANE_HEAD_WIDTH;
for (LayoutingElement content : diagram.getChildElementsOf(lane)) {
if (!BPMNType.isASwimlane(content.getType())) {
LayoutingBounds geom = content.getGeometry();
content.setGeometry(
new LayoutingBoundsImpl(
geom.getX() + xTrans, geom.getY() - absY, geom.getWidth(), geom.getHeight()));
((BPMNElement) content).updateDataModel();
}
}
}
public void doLayout() {
superGrid = new SuperGrid<BPMNElement>();
parent2Context.clear();
lane2LaneChilds.clear();
maxLaneDepth = 0;
if (parent == null) {
for (LayoutingElement pool : diagram.getElementsOfType(BPMNType.Pool)) {
prepareLanes((BPMNElement) pool, 1);
}
}
layoutElements();
if (parent == null) {
// set collapsed pools
List<LayoutingElement> collapsedPools =
this.diagram.getElementsOfType(BPMNType.CollapsedPool);
Grid<BPMNElement> cpGrid = new Grid<BPMNElement>();
superGrid.add(0, cpGrid);
for (LayoutingElement collapsedPool : collapsedPools) {
// make them small to not disturb finding the biggest ones in
// each row / column
collapsedPool.setGeometry(new LayoutingBoundsImpl(0, 0, 0, COLLAPSED_POOL_HEIGHT));
for (Cell<BPMNElement> insertCell : cpGrid.addLastRow()) {
insertCell.setValue((BPMNElement) collapsedPool);
}
}
calcGeometry(superGrid);
poolWidth = Math.max(poolWidth, COLLAPSED_POOL_MIN_WIDTH);
// place Lanes
for (LayoutingElement pool : diagram.getElementsOfType(BPMNType.Pool)) {
Grid<BPMNElement> firstGrid = findFirstGridOfPool((BPMNElement) pool);
int firstGridFirstRowIndex = superGrid.findRow(firstGrid.getFirstRow());
double poolY = 0;
for (int i = 0; i < firstGridFirstRowIndex; i++) {
poolY += heightOfRow[i];
}
placeLane((BPMNElement) pool, poolY, 0);
}
writeGeometry(superGrid);
// set pools to start at x = CELL_MARGIN & correct size
for (LayoutingElement collapsedPool : collapsedPools) {
collapsedPool.setGeometry(
new LayoutingBoundsImpl(
CELL_MARGIN, collapsedPool.getGeometry().getY(), poolWidth, COLLAPSED_POOL_HEIGHT));
((BPMNElement) collapsedPool).updateDataModel();
}
// convert Coordinates of Elements in Lanes from absolut to
// realitive
for (LayoutingElement pool : diagram.getElementsOfType(BPMNType.Pool)) {
correctLaneElements((BPMNElement) pool, pool.getGeometry().getY(), 0);
}
} else {
calcGeometry(superGrid);
writeGeometry(superGrid);
}
}