/**
* @param lane
* @param relY
* @param level
* @return height of lane
*/
private double placeLane(BPMNElement lane, double relY, int level) {
List<BPMNElement> childs = lane2LaneChilds.get(lane);
double height = 0;
for (BPMNElement child : childs) {
height += placeLane(child, height, level + 1);
}
int width = poolWidth - level * LANE_HEAD_WIDTH;
Grid<BPMNElement> myGrid = parent2Context.get(lane).grid;
int firstRow = superGrid.findRow(myGrid.getFirstRow());
int lastRow = superGrid.findRow(myGrid.getLastRow());
for (int i = firstRow; i <= lastRow; i++) {
height += heightOfRow[i];
}
double minHeight = lane.getGeometry().getHeight();
if (level == 0) {
minHeight += CELL_MARGIN / 2;
}
double diff = minHeight - height;
if (diff > 1.0) {
firstRow = superGrid.findRow(findFirstGridOfPool(lane).getFirstRow());
double toAdd = diff / (lastRow - firstRow + 1.0);
for (int i = firstRow; i <= lastRow; i++) {
heightOfRow[i] += toAdd;
}
// Redo placement
return placeLane(lane, relY, level);
}
if (level == 0) {
// pool with magin
lane.setGeometry(
new LayoutingBoundsImpl(
CELL_MARGIN, relY + (CELL_MARGIN / 4), width, height - (CELL_MARGIN / 2)));
} else {
// lane without margin
lane.setGeometry(new LayoutingBoundsImpl(CELL_MARGIN, relY, width, height));
}
lane.updateDataModel();
return height;
}
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);
}
}