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 Marji Lines and Alfredo Medio. * * Written by Daniele Pizzoni <auouo@tin.it>. * Extended by Alexei Grigoriev <alexei_grigoriev@libero.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.bifurcation; import java.awt.Component; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import javax.swing.JComboBox; import javax.swing.JComponent; import javax.swing.JPanel; import org.jfree.chart.plot.DefaultDrawingSupplier; import org.jfree.data.Range; import org.tsho.dmc2.core.VariableDoubles; import org.tsho.dmc2.core.VariableItems; import org.tsho.dmc2.core.model.Model; import org.tsho.dmc2.core.model.ODE; 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 org.tsho.dmc2.ui.components.GetVector; import com.jgoodies.forms.layout.CellConstraints; import com.jgoodies.forms.layout.FormLayout; import com.jgoodies.forms.layout.RowSpec; public final class BifurcationControlForm2 extends AbstractControlForm { private VariableItems varFields; private VariableItems parFields; private GetFloat lFirstParRange; private GetFloat uFirstParRange; private GetFloat lSecondParRange; private GetFloat uSecondParRange; private JComboBox box1; private JComboBox box2; private String item1; private String item2; private GetInt transientsField; private GetInt iterationsField; //private GetInt periodTransientsField; private GetInt periodField; private GetFloat epsilonField; private GetFloat infinityField; private GetFloat lowerVRangeField; private GetFloat upperVRangeField; private GetFloat timeField; private GetFloat stepField; private JComboBox verticalBox; private GetVector hyperplaneCoeffField; private Model model; public static final byte TYPE_SINGLE = 2; public static final byte TYPE_DOUBLE = 3; private byte type; public BifurcationControlForm2(final Model model, AbstractPlotComponent frame) { super(frame); setOpaque(true); this.model = model; type = TYPE_DOUBLE; parFields = FormHelper.createFields(model.getParNames(), "parameter"); varFields = FormHelper.createFields(model.getVarNames(), "initial value"); box1 = new JComboBox(model.getParNames()); box2 = new JComboBox(model.getParNames()); MyListener myListener = new MyListener(); box1.addItemListener(myListener); box2.addItemListener(myListener); transientsField = new GetInt("transients", FormHelper.FIELD_LENGTH, new Range(0, Integer.MAX_VALUE)); iterationsField = new GetInt("iterations", FormHelper.FIELD_LENGTH, new Range(1, Integer.MAX_VALUE)); periodField = new GetInt("maximal period", FormHelper.FIELD_LENGTH, new Range(0, DefaultDrawingSupplier.DEFAULT_PAINT_SEQUENCE.length)); epsilonField = new GetFloat("epsilon", FormHelper.FIELD_LENGTH, new Range(0, Double.MAX_VALUE)); infinityField = new GetFloat("infinity", FormHelper.FIELD_LENGTH, new Range(0, Double.MAX_VALUE)); lFirstParRange = new GetFloat("first parameter lower value", FormHelper.FIELD_LENGTH); uFirstParRange = new GetFloat("first parameter upper value", FormHelper.FIELD_LENGTH); lSecondParRange = new GetFloat("second parameter upper value", FormHelper.FIELD_LENGTH); uSecondParRange = new GetFloat("second parameter upper value", FormHelper.FIELD_LENGTH); lowerVRangeField = new GetFloat("lower vertical range", FormHelper.FIELD_LENGTH); upperVRangeField = new GetFloat("upper vertical range", FormHelper.FIELD_LENGTH); verticalBox = new JComboBox(model.getVarNames()); timeField = new GetFloat("time", FormHelper.FIELD_LENGTH); stepField = new GetFloat("step", FormHelper.FIELD_LENGTH); hyperplaneCoeffField = new GetVector("hyperplane coefficients", model.getNVar() + 1); FormLayout layout = new FormLayout("f:p:n", ""); setLayout(layout); layout.appendRow(new RowSpec("f:p:n")); add(createPanel(), new CellConstraints(1, 1)); if (model.getNPar() >= 2) { box1.setSelectedIndex(0); box2.setSelectedIndex(1); item1 = (String) box1.getSelectedItem(); item2 = (String) box2.getSelectedItem(); } } protected String getFormType() { String s = "BIFURCATION"; if (type == BifurcationControlForm2.TYPE_DOUBLE) s = s + "_2"; if (type == BifurcationControlForm2.TYPE_SINGLE) s = s + "_1"; return s; } private JPanel createPanel() { if (type == TYPE_SINGLE) { return createSimpleParameterPanel(); } else if (type == TYPE_DOUBLE) { return createDoubleParameterPanel(); } throw new Error("invalid type"); } private JPanel createSimpleParameterPanel() { FormHelper.FormBuilder builder; builder = FormHelper.controlFormBuilder(this, false); VariableItems.Iterator i; builder.addTitle("Inital values"); i = varFields.iterator(); while (i.hasNext()) { builder.addRow(i.nextLabel(), (Component) i.value()); } builder.addTitle("Parameters"); i = parFields.iterator(); int idx = 0; String label; while (i.hasNext()) { label = i.nextLabel(); if (idx++ == box1.getSelectedIndex()) { ((GetFloat) parFields.get(label)).setIgnoreValid(true); continue; } ((GetFloat) parFields.get(label)).setIgnoreValid(false); builder.addRow(label, (JComponent) i.value()); } builder.addGap(); builder.addRow("Horizontal axis", box1); builder.addRow("min", lFirstParRange); builder.addRow("max", uFirstParRange); builder.addGap(); builder.addTitle("Vertical range"); builder.addRow("min", lowerVRangeField); builder.addRow("max", upperVRangeField); builder.addGap(); if (model instanceof ODE) { builder.addTitle("Poincare section"); builder.addRow("plane coefficients", hyperplaneCoeffField); builder.addGap(); } builder.addTitle("Algorithm"); builder.addRow("transients", transientsField); if (model instanceof ODE) { builder.addRow("time", timeField); builder.addRow("step", stepField); } else { builder.addRow("iterations", iterationsField); } builder.addGap(); builder.addRow("vertical axis", verticalBox); return builder.getPanel(); } private JPanel createDoubleParameterPanel() { FormHelper.FormBuilder builder; builder = FormHelper.controlFormBuilder(this, false); VariableItems.Iterator i; builder.addTitle("Inital values"); i = varFields.iterator(); while (i.hasNext()) { builder.addRow(i.nextLabel(), (Component) i.value()); } builder.addTitle("Parameters"); i = parFields.iterator(); int idx = 0; String label; while (i.hasNext()) { label = i.nextLabel(); if (idx++ == box1.getSelectedIndex()) { ((GetFloat) parFields.get(label)).setIgnoreValid(true); continue; } if (idx - 1 == box2.getSelectedIndex()) { ((GetFloat) parFields.get(label)).setIgnoreValid(true); continue; } ((GetFloat) parFields.get(label)).setIgnoreValid(false); builder.addRow(label, (JComponent) i.value()); } builder.addGap(); builder.addRow("Horizontal axis", box1); builder.addRow("min", lFirstParRange); builder.addRow("max", uFirstParRange); builder.addGap(); builder.addRow("Vertical axis", box2); builder.addRow("min", lSecondParRange); builder.addRow("max", uSecondParRange); builder.addTitle("Approximation"); builder.addRow("epsilon", epsilonField); builder.addRow("infinity", infinityField); if (model instanceof ODE) { builder.addTitle("Poincare section"); builder.addRow("plane coefficients", hyperplaneCoeffField); builder.addGap(); } builder.addTitle("Period"); builder.addRow("maximal period", periodField); builder.addTitle("Algorithm"); builder.addRow("transients", transientsField); if (model instanceof ODE) { builder.addRow("maximal time", timeField); builder.addRow("step", stepField); } return builder.getPanel(); } private class MyListener implements ItemListener { private String cb1, cb2; public void itemStateChanged(ItemEvent e) { //if (ignoreComboBoxChanges) return; // catch deselected combo events if (e.getStateChange() == ItemEvent.DESELECTED) { return; } cb1 = (String) box1.getSelectedItem(); cb2 = (String) box2.getSelectedItem(); if (cb1.equals(cb2)) { if (!cb1.equals(item1)) { box2.setSelectedItem(item1); } else { box1.setSelectedItem(item2); } } item1 = (String) box1.getSelectedItem(); item2 = (String) box2.getSelectedItem(); removeAll(); add(createPanel(), new CellConstraints(1, 1)); revalidate(); repaint(); } } // Type public byte getType() { return type; } public void setType(byte t) { this.type = t; removeAll(); add(createPanel(), new CellConstraints(1, 1)); revalidate(); repaint(); } // Enabled state public void setEnabled(boolean flag) { super.setEnabled(flag); VariableItems.Iterator i; i = varFields.iterator(); while (i.hasNext()) { ((GetFloat) i.nextValue()).setEditable(flag); } i = parFields.iterator(); while (i.hasNext()) { ((GetFloat) i.nextValue()).setEditable(flag); } lFirstParRange.setEditable(flag); uFirstParRange.setEditable(flag); lSecondParRange.setEditable(flag); uSecondParRange.setEditable(flag); box1.setEnabled(flag); box2.setEnabled(flag); iterationsField.setEditable(flag); epsilonField.setEditable(flag); transientsField.setEditable(flag); periodField.setEditable(flag); infinityField.setEditable(flag); lowerVRangeField.setEditable(flag); upperVRangeField.setEditable(flag); verticalBox.setEnabled(flag); } // Initial values public VariableDoubles getInitialValues() throws InvalidData { return FormHelper.collectFieldValues(varFields); } public void setInitialValues(final VariableDoubles init) { FormHelper.setFieldValues(varFields, init); } // Parameters public VariableDoubles getParameters() throws InvalidData { return FormHelper.collectFieldValues(parFields); } public void setParameters(final VariableDoubles init) { FormHelper.setFieldValues(parFields, init); } public Range getFirstParameterRange() throws InvalidData { if (lFirstParRange.getValue() >= uFirstParRange.getValue()) { throw new InvalidData("Invalid \"" + box1.getSelectedItem() + "\" parameter range"); } return new Range(lFirstParRange.getValue(), uFirstParRange.getValue()); } public void setFirstParameterRange(Range range) { lFirstParRange.setValue(range.getLowerBound()); uFirstParRange.setValue(range.getUpperBound()); } public String getFirstParameterLabel() throws InvalidData { return (String) box1.getSelectedItem(); } public Range getSecondParameterRange() throws InvalidData { if (box1.getSelectedItem() == box2.getSelectedItem()) { throw new InvalidData("Must select different parameters"); } if (lSecondParRange.getValue() >= uSecondParRange.getValue()) { throw new InvalidData("Invalid \"" + box2.getSelectedItem() + "\" parameter range"); } return new Range(lSecondParRange.getValue(), uSecondParRange.getValue()); } public void setsecondParameterRange(Range range) { lSecondParRange.setValue(range.getLowerBound()); uSecondParRange.setValue(range.getUpperBound()); } public String getSecondParameterLabel() throws InvalidData { return (String) box2.getSelectedItem(); } // Vertical axis label public String getVerticalAxisLabel() throws InvalidData { return (String) verticalBox.getSelectedItem(); } // Epsilon public double getEpsilon() throws InvalidData { return epsilonField.getValue(); } public void setEpsilon(double value) { epsilonField.setValue(value); } // Infinity public double getInfinity() throws InvalidData { return infinityField.getValue(); } public void setInfinity(double value) { infinityField.setValue(value); } // Iterations public int getIterations() throws InvalidData { return iterationsField.getValue(); } public void setIterations(int t) { iterationsField.setValue(t); } // Transients public int getTransients() throws InvalidData { return transientsField.getValue(); } public void setTransients(int t) { iterationsField.setValue(t); } public void setTime(double time) { timeField.setValue(time); } public double getTime() throws InvalidData { return timeField.getValue(); } public void setStep(double step) { stepField.setValue(step); } public double getStep() throws InvalidData { return stepField.getValue(); } public double[] getHyperplaneCoeff() throws InvalidData { return hyperplaneCoeffField.getValue(); } public void setHyperplaneCoeff(double[] coeffs) { hyperplaneCoeffField.setValue(coeffs); } // Period public int getPeriod() throws InvalidData { return periodField.getValue(); } public void setPeriod(int t) { periodField.setValue(t); } // Period transients /* public int getPeriodTransients() throws InvalidData { return periodTransientsField.getValue(); } public void setPeriodTransients(int t) { periodTransientsField.setValue(t); } */ // Vertical Range public Range getVerticalRange() throws InvalidData { if (lowerVRangeField.getValue() >= upperVRangeField.getValue()) { throw new InvalidData("Invalid vertical range."); } return new Range(lowerVRangeField.getValue(), upperVRangeField.getValue()); } public void setVerticalRange(Range range) { lowerVRangeField.setValue(range.getLowerBound()); upperVRangeField.setValue(range.getUpperBound()); } }