Java tutorial
/* * Copyright 2006-2015 The MZmine 2 Development Team * * This file is part of MZmine 2. * * MZmine 2 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 2 of the License, or (at your option) any later * version. * * MZmine 2 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 * MZmine 2; if not, write to the Free Software Foundation, Inc., 51 Franklin * St, Fifth Floor, Boston, MA 02110-1301 USA */ package net.sf.mzmine.modules.visualization.histogram; import java.util.Collection; import net.sf.mzmine.parameters.UserParameter; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.NodeList; import com.google.common.collect.Range; public class HistogramRangeParameter implements UserParameter<Range<Double>, HistogramRangeEditor> { private String name, description; private HistogramDataType selectedType = HistogramDataType.MASS; private Range<Double> value; public HistogramRangeParameter() { this.name = "Plotted data"; this.description = "Plotted data type and range"; } /** * @see net.sf.mzmine.data.Parameter#getName() */ @Override public String getName() { return name; } /** * @see net.sf.mzmine.data.Parameter#getDescription() */ @Override public String getDescription() { return description; } @Override public HistogramRangeEditor createEditingComponent() { return new HistogramRangeEditor(); } @Override public HistogramRangeParameter cloneParameter() { HistogramRangeParameter copy = new HistogramRangeParameter(); copy.selectedType = this.selectedType; copy.value = this.value; return copy; } @Override public void setValueFromComponent(HistogramRangeEditor component) { this.selectedType = component.getSelectedType(); this.value = component.getValue(); } @Override public void setValueToComponent(HistogramRangeEditor component, Range<Double> newValue) { component.setValue(newValue); } @Override public Range<Double> getValue() { return value; } public HistogramDataType getType() { return selectedType; } @Override public void setValue(Range<Double> newValue) { value = newValue; } @Override public void loadValueFromXML(Element xmlElement) { String typeAttr = xmlElement.getAttribute("selected"); if (typeAttr.length() == 0) return; this.selectedType = HistogramDataType.valueOf(typeAttr); NodeList minNodes = xmlElement.getElementsByTagName("min"); if (minNodes.getLength() != 1) return; NodeList maxNodes = xmlElement.getElementsByTagName("max"); if (maxNodes.getLength() != 1) return; String minText = minNodes.item(0).getTextContent(); String maxText = maxNodes.item(0).getTextContent(); double min = Double.valueOf(minText); double max = Double.valueOf(maxText); value = Range.closed(min, max); } @Override public void saveValueToXML(Element xmlElement) { if (value == null) return; Document parentDocument = xmlElement.getOwnerDocument(); Element newElement = parentDocument.createElement("min"); newElement.setTextContent(String.valueOf(value.lowerEndpoint())); xmlElement.appendChild(newElement); newElement = parentDocument.createElement("max"); newElement.setTextContent(String.valueOf(value.upperEndpoint())); xmlElement.appendChild(newElement); xmlElement.setAttribute("selected", selectedType.name()); } @Override public boolean checkValue(Collection<String> errorMessages) { if (value == null) { errorMessages.add(name + " is not set"); return false; } return true; } }