trackpanel.java

来自「world wind java sdk 源码」· Java 代码 · 共 427 行 · 第 1/2 页

/*
Copyright (C) 2001, 2007 United States Government
as represented by the Administrator of the
National Aeronautics and Space Administration.
All Rights Reserved.
*/

package gov.nasa.worldwind.applications.sar;

import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
import java.util.Hashtable;

/**
 * @author tag
 * @version $Id: TrackPanel.java 9630 2009-03-24 10:50:46Z dcollins $
 */
public class TrackPanel extends JPanel
{
    private String elevationUnit;
    private String angleFormat;

    public TrackPanel()
    {
        initComponents();
        this.scrollPane.addMouseListener(new PositionsContextMenu(this.positionTable));
        this.positionTable.addMouseListener(new PositionsContextMenu(this.positionTable));
    }

    public void setTrack(SARTrack sarTrack)
    {
        this.positionTable.setSarTrack(sarTrack);
    }

    public SARTrack getTrack()
    {
        return this.positionTable.getSarTrack();
    }

    public String getElevationUnit()
    {
        return this.elevationUnit;
    }

    public void setElevationUnit(String unit)
    {
        String oldValue = this.elevationUnit;
        this.elevationUnit = unit;

        this.positionTable.setElevationUnit(unit);
        this.positionTable.updateTableData();
        this.changeOffsetUnit(oldValue, this.elevationUnit);
    }

    public String getAngleFormat()
    {
        return this.angleFormat;
    }

    public void setAngleFormat(String format)
    {
        String oldValue = this.angleFormat;
        this.angleFormat = format;

        this.positionTable.setAngleFormat(format);
        this.positionTable.updateTableData();
    }

    private void visibilityActionPerformed(ActionEvent e)
    {
        String vis = this.visibilityFlag.isSelected() ? TrackController.TRACK_ENABLE : TrackController.TRACK_DISABLE;
        this.positionTable.getSarTrack().firePropertyChange(vis, null, this.positionTable.getSarTrack());
    }

    private void enableTrackExtensionStateChanged(ItemEvent e)
    {
        boolean selected = (e.getStateChange() == ItemEvent.SELECTED);

        this.nextTrackPointButton.setEnabled(selected);
        this.removeTrackPointButton.setEnabled(selected);

        String request = selected ? TrackController.BEGIN_TRACK_POINT_ENTRY : TrackController.END_TRACK_POINT_ENTRY;
        this.positionTable.getSarTrack().firePropertyChange(request, null, this.positionTable.getSarTrack());
    }

    private void nextTrackPositionActionPerformed(ActionEvent e)
    {
        this.positionTable.getSarTrack().firePropertyChange(TrackController.MOVE_TO_NEXT_POINT, null, 
            this.positionTable.getSarTrack());
    }

    private void removeTrackPositionActionPerformed(ActionEvent e)
    {
        this.positionTable.getSarTrack().firePropertyChange(TrackController.REMOVE_LAST_POINT, null,
            this.positionTable.getSarTrack());
    }

    private boolean ignoreOffsetChange = false;

    private void offsetSliderStateChanged(ChangeEvent e)
    {
        if (this.ignoreOffsetChange)
        {
            this.ignoreOffsetChange = false;
            return;
        }

        int offset = this.offsetToggleCheckBox.isSelected() ? this.offsetSlider.getValue() : 0;
        this.offsetReadout.setText(Integer.toString(offset));
        applyTrackOffset(offset);
    }

    private void offsetToggleCheckBoxItemStateChanged(ItemEvent e)
    {
        this.offsetRangeSpinner.setEnabled(this.offsetToggleCheckBox.isSelected());
        this.offsetReadout.setEnabled(this.offsetToggleCheckBox.isSelected());
        this.offsetSlider.setEnabled(this.offsetToggleCheckBox.isSelected());
        double offset = this.offsetToggleCheckBox.isSelected() ? Double.parseDouble(this.offsetReadout.getText()) : 0d;
        applyTrackOffset(offset);
    }

    private void offsetReadoutActionPerformed(ActionEvent e)
    {
        double offset = this.offsetToggleCheckBox.isSelected() ? Double.parseDouble(this.offsetReadout.getText()) : 0d;
        this.offsetReadout.setText(Integer.toString((int) offset));

        this.ignoreOffsetChange = true;
        if (offset >= this.offsetSlider.getMaximum())
            this.offsetSlider.setValue(this.offsetSlider.getMaximum());
        else if (offset <= this.offsetSlider.getMinimum())
            this.offsetSlider.setValue(this.offsetSlider.getMinimum());
        else
            this.offsetSlider.setValue((int) offset);

        applyTrackOffset(offset);
    }

    private void offsetRangeSpinnerStateChanged(ChangeEvent e)
    {
        int rangeValue = Integer.parseInt(((String)this.offsetRangeSpinner.getValue()).replaceAll("[^0-9]", ""));
        this.offsetSlider.setMaximum(rangeValue);
        this.offsetSlider.setMinimum(-rangeValue);
        Hashtable ht;
        if (rangeValue <= 100)
            ht = this.offsetSlider.createStandardLabels(20);
        else if (rangeValue <= 500)
            ht = this.offsetSlider.createStandardLabels(100);
        else if (rangeValue <= 1000)
            ht = this.offsetSlider.createStandardLabels(200);
        else
            ht = this.offsetSlider.createStandardLabels(1000);
        this.offsetSlider.setLabelTable(ht);

        int value = Math.min(rangeValue, Math.max(-rangeValue, this.offsetSlider.getValue()));
        if (value != this.offsetSlider.getValue())
            this.offsetSlider.setValue(value);
    }

    private void applyTrackOffset(double offset)
    {
        // The actual track offset will always be in meters. If the
        // user is working in imperial units, convert the slider
        // value to meters before passing it to SarTrack.
        double trackOffset;
        if (SAR2.UNIT_IMPERIAL.equals(this.elevationUnit))
            trackOffset = SAR2.feetToMeters(offset);
        else // Default to metric units.
            trackOffset = offset;

        this.positionTable.getSarTrack().setOffset(trackOffset);
        this.positionTable.getSarTrack().firePropertyChange(TrackController.TRACK_MODIFY, null,
            this.positionTable.getSarTrack());
    }

    private void changeOffsetUnit(String oldUnit, String newUnit)
    {
        if (newUnit.equals(oldUnit))
            return;
        
        //---- offsetSlider ----
        int value = this.offsetSlider.getValue();

        if (SAR2.UNIT_IMPERIAL.equals(oldUnit))
            value = (int) SAR2.feetToMeters(value);
        else
            value = (int) SAR2.metersToFeet(value);

        if (value > this.offsetSlider.getMaximum())
            value = this.offsetSlider.getMaximum();
        if (value < this.offsetSlider.getMinimum())
            value = this.offsetSlider.getMinimum();

        this.offsetSlider.setValue(value);

        //---- offsetReadout ----
        this.offsetReadout.setText(Integer.toString(value));
    }

//    private void changeOffsetUnitOld(String oldUnit, String newUnit)
//    {
//        int value = this.offsetSlider.getValue();
//
//        //---- offsetSlider ----
//        if (SAR2.UNIT_IMPERIAL.equals(newUnit))
//        {
//            this.offsetSlider.setMaximum(16000);
//            this.offsetSlider.setMinimum(-16000);
//            this.offsetSlider.setMajorTickSpacing(3200);
//            Hashtable ht = this.offsetSlider.createStandardLabels(3200);
//            this.offsetSlider.setLabelTable(ht);
//            if (SAR2.UNIT_METRIC.equals(oldUnit))