/*
Copyright 2003-2012 Dmitry Barashev, GanttProject Team
This file is part of GanttProject, an opensource project management tool.
GanttProject is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
GanttProject is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GanttProject. If not, see <http://www.gnu.org/licenses/>.
*/
package net.sourceforge.ganttproject.chart;
import java.util.ArrayList;
import java.util.List;
import org.jdesktop.swingx.JXTreeTable;
import org.jdesktop.swingx.treetable.MutableTreeTableNode;
import net.sourceforge.ganttproject.TreeUtil;
import net.sourceforge.ganttproject.task.Task;
/**
* Created by IntelliJ IDEA. User: bard
*/
public class VisibleNodesFilter {
public List<Task> getVisibleNodes(JXTreeTable jtree, int minHeight, int maxHeight, int nodeHeight) {
List<MutableTreeTableNode> preorderedNodes = TreeUtil.collectSubtree((MutableTreeTableNode) jtree.getTreeTableModel().getRoot());
List<Task> result = new ArrayList<Task>();
int currentHeight = 0;
for (int i = 1; i < preorderedNodes.size(); i++) {
MutableTreeTableNode nextNode = preorderedNodes.get(i);
if (false == nextNode.getUserObject() instanceof Task) {
continue;
}
if ((currentHeight + nodeHeight) > minHeight && jtree.isVisible(TreeUtil.createPath(nextNode))) {
result.add((Task) nextNode.getUserObject());
}
if (jtree.isVisible(TreeUtil.createPath(nextNode))) {
currentHeight += nodeHeight;
}
if (currentHeight > minHeight + maxHeight) {
break;
}
}
return result;
}
}