SyMAT/src/net/apocalypselabs/symat/GraphScale.java

/* 
 * Copyright (c) 2015, Apocalypse Laboratories
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification,
 *  are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice, this 
 * list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright notice, 
 * this list of conditions and the following disclaimer in the documentation and/or
 *  other materials provided with the distribution.
 * 
 * 3. Neither the name of the copyright holder nor the names of its contributors 
 * may be used to endorse or promote products derived from this software without 
 * specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
 *  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package net.apocalypselabs.symat;

import java.math.BigDecimal;
import java.math.RoundingMode;

/**
 * This is a panel for scale settings.  It is shown in a JOptionPane.
 * @author Skylar
 */
public class GraphScale extends javax.swing.JPanel {

    /**
     * Creates new form GraphSettings
     */
    public GraphScale() {
        initComponents();
    }

    public GraphScale(int scale) {
        this();
        scaleSpinner.setValue(scale);
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        scaleSpinner = new javax.swing.JSpinner();
        helpLbl = new javax.swing.JLabel();
        scaleLbl = new javax.swing.JLabel();

        scaleSpinner.setModel(new javax.swing.SpinnerNumberModel());
        scaleSpinner.setEditor(new javax.swing.JSpinner.NumberEditor(scaleSpinner, ""));
        scaleSpinner.addChangeListener(new javax.swing.event.ChangeListener() {
            public void stateChanged(javax.swing.event.ChangeEvent evt) {
                scaleSpinnerStateChanged(evt);
            }
        });

        helpLbl.setText("Set detail level for graph (larger is finer):");

        scaleLbl.setText("1 tick = 1 x");

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                    .addComponent(helpLbl)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(scaleSpinner, javax.swing.GroupLayout.PREFERRED_SIZE, 71, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(18, 18, 18)
                        .addComponent(scaleLbl, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addComponent(helpLbl)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(scaleSpinner, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(scaleLbl))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );
    }// </editor-fold>//GEN-END:initComponents

    private void scaleSpinnerStateChanged(javax.swing.event.ChangeEvent evt) {//GEN-FIRST:event_scaleSpinnerStateChanged
        double scale = Graph.getScale((int) scaleSpinner.getValue());
        BigDecimal bd = new BigDecimal(scale);
        bd = bd.setScale(6, RoundingMode.HALF_UP);
        scaleLbl.setText("1 tick = " + String.valueOf(bd.doubleValue()) + " x");
    }//GEN-LAST:event_scaleSpinnerStateChanged

    /**
     * Get the chosen scale.
     *
     * @return the scale.
     */
    public int getScale() {
        return (int) scaleSpinner.getValue();
    }

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JLabel helpLbl;
    private javax.swing.JLabel scaleLbl;
    private javax.swing.JSpinner scaleSpinner;
    // End of variables declaration//GEN-END:variables
}