NumericProperty.java

/*
 * Copyright (C) 2015 johnlindsay
 *
 * 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 3 of the License, or
 * (at your option) 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package whitebox.ui;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.event.*;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import javax.swing.*;
import java.text.NumberFormat;

/**
 *
 * @author johnlindsay
 */
public class NumericProperty extends JComponent implements MouseListener,
        PropertyChangeListener {

    public enum Precision {
        DOUBLE, FLOAT, INTEGER;
    }
    private String labelText;
    private String value;
    private Color backColour = Color.WHITE;
    private int leftMargin = 10;
    private int rightMargin = 10;
    private int preferredWidth = 200;
    private int preferredHeight = 24;
    private int textboxWidth = 15;
    private Boolean parseIntegersOnly = false;
    private double minValue = Double.NEGATIVE_INFINITY;
    private double maxValue = Double.POSITIVE_INFINITY;
    private JFormattedTextField formattedTextField = new JFormattedTextField();
    private NumberFormat numberFormat;
    private Precision precision = Precision.DOUBLE;

    public NumericProperty() {
        setOpaque(true);
        revalidate();
    }

    public NumericProperty(String labelText, String value) {
        setOpaque(true);
        this.labelText = labelText;
        this.value = value;
        revalidate();
    }

    public NumericProperty(String labelText, String value, double minValue, double maxValue) {
        setOpaque(true);
        this.labelText = labelText;
        this.value = value;
        this.minValue = minValue;
        this.maxValue = maxValue;
        revalidate();
    }

    public Color getBackColour() {
        return backColour;
    }

    public void setBackColour(Color backColour) {
        this.backColour = backColour;
    }

    public String getLabelText() {
        return labelText;
    }

    public void setLabelText(String labelText) {
        this.labelText = labelText;
    }

    public String getValue() {
        return value;
    }

    public void setValue(String value) {
        String oldValue = this.value;
        this.value = value;
        firePropertyChange("value", oldValue, value);
    }

    public int getLeftMargin() {
        return leftMargin;
    }

    public void setLeftMargin(int leftMargin) {
        this.leftMargin = leftMargin;
    }

    public int getPreferredHeight() {
        return preferredHeight;
    }

    public void setPreferredHeight(int preferredHeight) {
        this.preferredHeight = preferredHeight;
    }

    public int getPreferredWidth() {
        return preferredWidth;
    }

    public void setPreferredWidth(int preferredWidth) {
        this.preferredWidth = preferredWidth;
    }

    public int getRightMargin() {
        return rightMargin;
    }

    public void setRightMargin(int rightMargin) {
        this.rightMargin = rightMargin;
    }

    public int getTextboxWidth() {
        return textboxWidth;
    }

    public void setTextboxWidth(int textboxWidth) {
        this.textboxWidth = textboxWidth;
    }

    public Boolean getParseIntegersOnly() {
        return parseIntegersOnly;
    }

    public void setParseIntegersOnly(Boolean integerNumbersOnly) {
        this.parseIntegersOnly = integerNumbersOnly;
        if (integerNumbersOnly) {
            precision = Precision.INTEGER;
        }
    }
    
    public Precision getPrecision() {
        return precision;
    }
    
    public void setPrecision(Precision precision) {
        this.precision = precision;
        if (precision == Precision.INTEGER) {
            parseIntegersOnly = true;
        }
    }

    public double getMaxValue() {
        return maxValue;
    }

    public void setMaxValue(double maxValue) {
        this.maxValue = maxValue;
    }

    public double getMinValue() {
        return minValue;
    }

    public void setMinValue(double minValue) {
        this.minValue = minValue;
    }
    
    

    @Override
    public final void revalidate() {
        this.removeAll();
        this.
                setupFormat();

        this.setLayout(new BoxLayout(this, BoxLayout.X_AXIS));
        this.setBackground(backColour);
        this.add(Box.createHorizontalStrut(leftMargin));
        JLabel label = new JLabel(labelText);
        label.setPreferredSize(new Dimension(preferredWidth, preferredHeight));
        this.add(label);
        this.add(Box.createHorizontalGlue());
        formattedTextField = new JFormattedTextField(numberFormat);
        //formattedTextField.setMaximumSize(new Dimension(5000, 24));
        formattedTextField.setMaximumSize(new Dimension(Integer.MAX_VALUE,
                formattedTextField.getPreferredSize().height));
        formattedTextField.setColumns(textboxWidth);
        formattedTextField.setHorizontalAlignment(JTextField.RIGHT);
        if (parseIntegersOnly && !value.isEmpty()) {
            formattedTextField.setValue(new Integer(value));
        } else if (!value.isEmpty()) {
            formattedTextField.setValue(new Double(value));
        } else {
            //formattedTextField.setValue(0);
        }
        formattedTextField.addPropertyChangeListener("value", this);
        this.add(formattedTextField);
        //formattedTextField.revalidate();
        this.add(Box.createHorizontalStrut(rightMargin));
        super.revalidate();
    }

    private void setupFormat() {
        numberFormat = NumberFormat.getNumberInstance();
        if (parseIntegersOnly) {
            numberFormat.setParseIntegerOnly(true);
        }
    }

    @Override
    public void propertyChange(PropertyChangeEvent e) {
        try {
            Object source = e.getSource();
            if (source == formattedTextField) {
                if (formattedTextField.getValue() == null) {
                    return;
                }
                if (precision == Precision.INTEGER) {
                    int val = ((Number) formattedTextField.getValue()).intValue();
                    if (val < minValue) {
                        val = (int) minValue;
                        formattedTextField.setValue(val);
                    }
                    if (val > maxValue) {
                        val = (int) maxValue;
                        formattedTextField.setValue(val);
                    }
                    setValue(String.valueOf(val));
                } else if (precision == Precision.DOUBLE) {
                    double val = ((Number) formattedTextField.getValue()).doubleValue();
                    if (val < minValue) {
                        val = minValue;
                        formattedTextField.setValue(val);
                    }
                    if (val > maxValue) {
                        val = maxValue;
                        formattedTextField.setValue(val);
                    }
                    setValue(String.valueOf(val));
                } else if (precision == Precision.FLOAT) {
                    double val = ((Number) formattedTextField.getValue()).floatValue();
                    if (val < minValue) {
                        val = minValue;
                        formattedTextField.setValue(val);
                    }
                    if (val > maxValue) {
                        val = maxValue;
                        formattedTextField.setValue(val);
                    }
                    setValue(String.valueOf((float)val));
                }
            }
        } catch (Exception ex) {
            System.out.println(ex.getMessage());
        }
    }

    @Override
    public void paintComponent(Graphics g) {
        if (isOpaque()) {
            g.setColor(getBackground());
            g.fillRect(0, 0, getWidth(), getHeight());
            g.setColor(getForeground());
        }
    }

    @Override
    public void mouseClicked(MouseEvent e) {
    }

    @Override
    public void mousePressed(MouseEvent e) {
    }

    @Override
    public void mouseReleased(MouseEvent e) {
    }

    @Override
    public void mouseEntered(MouseEvent e) {
    }

    @Override
    public void mouseExited(MouseEvent e) {
    }
}