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an Open Source BPMN 2.0 Modeler
package org.yaoqiang.graph.view;
import java.util.Map;
import org.yaoqiang.graph.model.YGraphModel;
import org.yaoqiang.graph.swing.YGraphComponent;
import org.yaoqiang.graph.util.Constants;
import org.yaoqiang.graph.util.Utils;
import com.mxgraph.model.mxCell;
import com.mxgraph.util.mxEvent;
import com.mxgraph.util.mxEventObject;
import com.mxgraph.util.mxEventSource;
import com.mxgraph.util.mxUtils;
import com.mxgraph.view.mxCellState;
/**
* SwimlaneManager
*
* @author Shi Yaoqiang([email protected])
*/
public class SwimlaneManager extends mxEventSource {
protected YGraphComponent graphComponent;
protected YGraph graph;
protected YGraphModel model;
public SwimlaneManager(YGraphComponent graphComponent) {
if (this.graph != null) {
this.graph.removeListener(handler);
}
this.graphComponent = graphComponent;
this.graph = graphComponent.getGraph();
this.model = graphComponent.getGraph().getModel();
if (this.graph != null) {
this.graph.addListener(null, handler);
}
}
public final mxIEventListener getHandler() {
return handler;
}
protected mxIEventListener handler = new mxIEventListener() {
public void invoke(Object source, mxEventObject evt) {
String eventName = evt.getName();
if (evt.getName().equals(mxEvent.REPAINT) || evt.getName().equals(mxEvent.CONNECT_CELL) || evt.getName().equals(mxEvent.CELL_CONNECTED)
|| evt.getName().equals(mxEvent.CHANGE) || evt.getName().equals(mxEvent.ORDER_CELLS) || evt.getName().equals(mxEvent.CELLS_ORDERED)) {
return;
}
Object cell = graph.getSelectionCell();
Object[] cells = (Object[]) evt.getProperty("cells");
if (cell == null) {
if (cells != null && cells.length > 0) {
cell = (mxCell) cells[0];
}
}
if (!graph.isSwimlane(cell) && !eventName.equals(mxEvent.ROOT) && !eventName.equals(mxEvent.MOVE_CELLS) && !eventName.equals(mxEvent.FOLD_CELLS) && !eventName.equals(mxEvent.RESIZE_CELLS)) {
return;
}
if (eventName.equals(mxEvent.RESIZE_CELLS) || (!graph.isSwimlane(cell) && eventName.equals(mxEvent.FOLD_CELLS))) {
model.beginUpdate();
try {
if (!graph.isSwimlane(cell)) {
cell = graph.getParentSwimlane(cell);
}
if (cell != null) {
Utils.arrangeSwimlanePosition(graphComponent);
Utils.arrangeSwimlaneLength(graph, cell, false, false);
Utils.manualArrangeSwimlaneLength(graph, cell);
Utils.arrangeSwimlaneSize(graph, cell, false, false, true);
}
} finally {
model.endUpdate();
}
} else if (eventName.equals(mxEvent.REMOVE_CELLS)) {
Utils.arrangeSwimlaneSize(graph, cell, false, false, true);
Object parent = model.getParent(cell);
if (graph.isVerticalSwimlane(cell)) {
Utils.arrangeLaneXOffset(graph, parent);
} else {
Utils.arrangeLaneYOffset(graph, parent);
}
if (graph.isLane(parent) && model.getChildCount(parent) == 0) {
Utils.setLaneStyle(graph, parent);
}
} else if (eventName.equals(mxEvent.FOLD_CELLS)) {
model.beginUpdate();
try {
Utils.arrangeSwimlaneLength(graph, cell, false, true);
Utils.manualArrangeSwimlaneLength(graph, cell);
Utils.arrangeSwimlaneSize(graph, cell, false, true, false);
if (graph.isManualPool(model.getParent(cell))) {
if (graph.isVerticalSwimlane(model.getParent(cell))) {
Utils.arrangeLaneXOffset(graph, model.getParent(cell));
} else {
Utils.arrangeLaneYOffset(graph, model.getParent(cell));
}
} else {
Utils.arrangeSwimlanePosition(graphComponent);
}
} finally {
model.endUpdate();
}
} else if (eventName.equals(mxEvent.UNDO) || eventName.equals(mxEvent.REDO)) {
Utils.arrangeSwimlaneLength(graph, cell, true, false);
Utils.manualArrangeSwimlaneLength(graph, cell);
Utils.arrangeSwimlaneSize(graph, cell, false, false, false);
if (graph.isVerticalSwimlane(cell)) {
Utils.arrangeLaneXOffset(graph, model.getParent(cell));
} else {
Utils.arrangeLaneYOffset(graph, model.getParent(cell));
}
Utils.arrangeSwimlanePosition(graphComponent);
} else if (eventName.equals(mxEvent.MOVE_CELLS)) {
Object targetCell = evt.getProperty("target");
boolean changeStyle = evt.getProperty("changeStyle") == null ? true : false;
for (int i = 0; i < cells.length; i++) {
String value = (String) model.getValue(cells[i]);
mxCellState state = graph.getView().getState(cells[i]);
Map style = (state != null) ? state.getStyle() : graph.getCellStyle(cells[i]);
if (graph.isSwimlane(cells[i]) && changeStyle) {
if (targetCell == null || graph.isPlane(targetCell)) {
if (value.equals("Lane")) {
model.setValue(cells[i], "Participant");
}
if (mxUtils.isTrue(style, Constants.SWIMLANE_STYLE_LANE, true)) {
Utils.setPoolStyle(graph, cells[i]);
}
} else if (graph.isSwimlane(targetCell)) {
if (value.equals("Participant")) {
model.setValue(cells[i], "Lane");
}
if (model.getChildCount(cells[i]) == 0 || graph.hasChildNonLane(cells[i])) {
Utils.setLaneStyle(graph, cells[i]);
}
// if (model.getChildCount(targetCell) == 1) {
// if (!graph.isPool(targetCell)) {
// Utils.setPoolStyle(graph, targetCell);
// }
// }
}
}
}
if ((targetCell == null || graph.isPlane(targetCell) || graph.isSwimlane(targetCell)) && graph.isSwimlane(cells[0])) {
Utils.arrangeSwimlaneLength(graph, cells[0], true, false);
Utils.manualArrangeSwimlaneLength(graph, cells[0]);
Utils.arrangeSwimlaneSize(graph, cells[0], false, false, false);
Utils.arrangeSwimlanePosition(graphComponent);
} else if (graph.isSwimlane(targetCell) && !graph.isSwimlane(cells[0])) {
Utils.arrangeSwimlaneSize(graph, targetCell, false, false, false);
Utils.arrangeSwimlanePosition(graphComponent);
}
} else if (eventName.equals(mxEvent.ROOT)) {
for (Object pool : graph.getAllPools()) {
Utils.arrangeSwimlaneLength(graph, pool, true, false);
Utils.manualArrangeSwimlaneLength(graph, pool);
Utils.arrangeSwimlaneSize(graph, pool, false, true, false);
Utils.arrangeSwimlanePosition(graphComponent);
}
} else if (eventName.equals(mxEvent.CELLS_ADDED)) {
Object parent = evt.getProperty("parent");
if (parent != null) {
if (graph.isVerticalSwimlane(cell)) {
Utils.arrangeLaneXOffset(graph, parent);
} else {
Utils.arrangeLaneYOffset(graph, parent);
}
}
}
graph.refresh();
}
};
}
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