Java tutorial
/* * iDMC the interactive Dynamical Model Calculator simulates and performs * graphical and numerical analysis of systems of differential and * difference equations. * * Copyright (C) 2004,2007 Marji Lines and Alfredo Medio. * * Written by Daniele Pizzoni <auouo@tin.it>. * * * The software program was developed within a research project financed * by the Italian Ministry of Universities, the Universities of Udine and * Ca'Foscari of Venice, the Friuli-Venezia Giulia Region. * * This program 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 any * later version. * * This program 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. */ package org.tsho.dmc2.ui.cycles; import java.awt.Component; import java.io.File; import java.io.IOException; import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.WindowConstants; import org.jfree.data.Range; import org.tsho.dmc2.core.VariableDoubles; import org.tsho.dmc2.core.VariableItems; import org.tsho.dmc2.core.dlua.Lua; import org.tsho.dmc2.core.model.Model; import org.tsho.dmc2.core.model.ModelException; import org.tsho.dmc2.ui.AbstractControlForm; import org.tsho.dmc2.ui.AbstractPlotComponent; import org.tsho.dmc2.ui.FormHelper; import org.tsho.dmc2.ui.InvalidData; import org.tsho.dmc2.ui.components.GetFloat; import org.tsho.dmc2.ui.components.GetInt; import com.jgoodies.forms.layout.CellConstraints; import com.jgoodies.forms.layout.FormLayout; import com.jgoodies.forms.layout.RowSpec; public final class CyclesControlForm2 extends AbstractControlForm { private VariableItems parFields; private GetFloat epsilonField; private GetInt periodField; private GetInt triesField; private GetFloat lowerHRangeField; private GetFloat upperHRangeField; private GetFloat lowerVRangeField; private GetFloat upperVRangeField; private GetFloat rangeFieldsMin[]; private GetFloat rangeFieldsMax[]; private JComboBox domainBox; private JComboBox rangeBox; String varNames[]; public CyclesControlForm2(final Model model, AbstractPlotComponent frame) { super(frame); setOpaque(true); if (model.getNVar() < 1) throw new Error("models must be with dimension >= 1"); parFields = FormHelper.createFields(model.getParNames(), "parameter"); varNames = model.getVarNames(); rangeFieldsMin = new GetFloat[varNames.length]; rangeFieldsMax = new GetFloat[varNames.length]; for (int i = 0; i < varNames.length; i++) { rangeFieldsMin[i] = new GetFloat(varNames[i] + " min", FormHelper.FIELD_LENGTH); rangeFieldsMax[i] = new GetFloat(varNames[i] + " max", FormHelper.FIELD_LENGTH); } epsilonField = new GetFloat("epsilon", FormHelper.FIELD_LENGTH, new Range(0, Double.MAX_VALUE)); periodField = new GetInt("period", FormHelper.FIELD_LENGTH, new Range(1, Integer.MAX_VALUE)); triesField = new GetInt("max. tries", FormHelper.FIELD_LENGTH, new Range(1, Integer.MAX_VALUE)); lowerHRangeField = new GetFloat("lower horizontal range", FormHelper.FIELD_LENGTH); upperHRangeField = new GetFloat("upper horizontal range", FormHelper.FIELD_LENGTH); lowerVRangeField = new GetFloat("lower vertical range", FormHelper.FIELD_LENGTH); upperVRangeField = new GetFloat("upper vertical range", FormHelper.FIELD_LENGTH); domainBox = new JComboBox(model.getVarNames()); rangeBox = new JComboBox(model.getVarNames()); domainBox.setSelectedIndex(0); if (model.getNVar() > 1) { rangeBox.setSelectedIndex(1); } FormLayout layout = new FormLayout("f:p:n", ""); setLayout(layout); layout.appendRow(new RowSpec("f:p:n")); add(createPanel(), new CellConstraints(1, 1)); } private JPanel createPanel() { FormHelper.FormBuilder builder; builder = FormHelper.controlFormBuilder(this, false); VariableItems.Iterator i; builder.addTitle("Parameters"); i = parFields.iterator(); while (i.hasNext()) { builder.addRow(i.nextLabel(), (Component) i.value()); } builder.addTitle("Variables ranges"); int j; for (j = 0; j < varNames.length - 1; j++) { builder.addSubtitle(varNames[j]); builder.addRow("min", rangeFieldsMin[j]); builder.addRow("max", rangeFieldsMax[j]); builder.addGap(); } builder.addSubtitle(varNames[j]); builder.addRow("min", rangeFieldsMin[j]); builder.addRow("max", rangeFieldsMax[j]); builder.addTitle("Algorithm"); builder.addRow("epsilon", epsilonField); builder.addRow("period", periodField); builder.addRow("max. tries", triesField); builder.addTitle("Plotting ranges"); builder.addSubtitle("horizontal"); builder.addRow("min", lowerHRangeField); builder.addRow("max", upperHRangeField); builder.addGap(); builder.addSubtitle("vertical"); builder.addRow("min", lowerVRangeField); builder.addRow("max", upperVRangeField); builder.addTitle("Axes"); builder.addRow("domain", domainBox); builder.addRow("range", rangeBox); return builder.getPanel(); } // Enabled state public void setEnabled(boolean flag) { super.setEnabled(flag); VariableItems.Iterator i; i = parFields.iterator(); while (i.hasNext()) { ((GetFloat) i.nextValue()).setEditable(flag); } epsilonField.setEditable(flag); periodField.setEditable(flag); triesField.setEditable(flag); lowerHRangeField.setEditable(flag); upperHRangeField.setEditable(flag); lowerVRangeField.setEditable(flag); upperVRangeField.setEditable(flag); domainBox.setEnabled(flag); rangeBox.setEnabled(flag); } // Parameters public VariableDoubles getParameterValues() throws InvalidData { return FormHelper.collectFieldValues(parFields); } public void setParameterValues(final VariableDoubles init) { FormHelper.setFieldValues(parFields, init); } // Power public double getEpsilon() throws InvalidData { return epsilonField.getValue(); } public void setEpsilon(double value) { epsilonField.setValue(value); } // Limit public int getPeriod() throws InvalidData { return periodField.getValue(); } public void setPeriod(int t) { periodField.setValue(t); } // Limit public int getMaxTries() throws InvalidData { return triesField.getValue(); } public void setMaxTries(int t) { triesField.setValue(t); } // Ranges public VariableDoubles getRangeMin() throws InvalidData { VariableDoubles ans = new VariableDoubles(varNames); for (int i = 0; i < varNames.length; i++) ans.put(varNames[i], rangeFieldsMin[i].getValue()); return ans; } public VariableDoubles getRangeMax() throws InvalidData { VariableDoubles ans = new VariableDoubles(varNames); for (int i = 0; i < varNames.length; i++) ans.put(varNames[i], rangeFieldsMax[i].getValue()); return ans; } public Range getXRange() throws InvalidData { if (lowerHRangeField.getValue() >= upperHRangeField.getValue()) { throw new InvalidData("Invalid horizontal range"); } return new Range(lowerHRangeField.getValue(), upperHRangeField.getValue()); } public void setXRange(Range range) { lowerHRangeField.setValue(range.getLowerBound()); upperHRangeField.setValue(range.getUpperBound()); } public Range getYRange() throws InvalidData { if (lowerVRangeField.getValue() >= upperVRangeField.getValue()) { throw new InvalidData("Invalid vertical range"); } return new Range(lowerVRangeField.getValue(), upperVRangeField.getValue()); } public void setYRange(Range range) { lowerVRangeField.setValue(range.getLowerBound()); upperVRangeField.setValue(range.getUpperBound()); } // Axes public String getLabelOnX() { return (String) domainBox.getSelectedItem(); } public String getLabelOnY() { return (String) rangeBox.getSelectedItem(); } // Debug only /* public static void main(String[] args) { Model model; try { File f = new File("/home/tsho-debian/workspace.common/dmcDue/models/lorenz.lua"); // File f = new File("/home/tsho-debian/workspace.common/dmcDue/models/logist.lua"); model = Lua.newModel(f); } catch (IOException e) { throw new Error(e); } catch (ModelException e) { throw new Error(e); } JFrame frame = new JFrame(); frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE); CyclesControlForm2 panel = new CyclesControlForm2(model); frame.getContentPane().add(panel); frame.setTitle(panel.getClass().getName()); frame.pack(); frame.show(); } */ protected String getFormType() { return "CYCLES"; } }