trackviewpanel.java

来自「world wind java sdk 源码」· Java 代码 · 共 783 行 · 第 1/2 页

                        // enough space inside this segment
                        curDelta += distanceToGo / segmentLength;
                        setPositionDelta(positionNumber, curDelta);
                        distanceToGo = 0;
                    }
                    else
                    {
                        // move to next segment
                        if (!this.isLastPosition(positionNumber + 1))
                        {
                            distanceToGo -= segmentLength * (1d - curDelta);
                            positionNumber++;
                            curDelta = 0;
                        }
                        else
                        {
                            // reached end of track
                            setPositionDelta(positionNumber + 1, 0);
                            this.playMode = PLAY_STOP;
                            break;
                        }
                    }
                }
                this.firePropertyChange(POSITION_CHANGE, -1, 0);
            }
        }
        else if (this.playMode == PLAY_BACKWARD)
        {
            this.stopButton.setEnabled(true);
            if (positionNumber <= 0 && curDelta <= 0)
            {
                setPositionDelta(0, 0);
                this.playMode = PLAY_STOP;
            }
            else
            {
                double distanceToGo = computeDistanceToGo(speedKMH);
                while (distanceToGo > 0)
                {
                    double segmentLength = this.analysisPanel.getSegmentLength(positionNumber);
                    if (segmentLength * curDelta - distanceToGo >= 0)
                    {
                        // enough space inside this segment
                        curDelta -= distanceToGo / segmentLength;
                        setPositionDelta(positionNumber, curDelta);
                        distanceToGo = 0;
                    }
                    else
                    {
                        // move to previous segment
                        if (positionNumber > 0)
                        {
                            distanceToGo -= segmentLength * curDelta;
                            positionNumber--;
                            curDelta = 1;
                        }
                        else
                        {
                            // reached start of track
                            setPositionDelta(0, 0);
                            this.playMode = PLAY_STOP;
                            break;
                        }
                    }
                }
                this.firePropertyChange(POSITION_CHANGE, -1, 0);
            }
        }
    }

    private double computeDistanceToGo(double speedKMH)
    {
        long stepTime = System.nanoTime();
        double distance = 0;
        if (this.previousStepTime > 0)
        {
            double ellapsedMillisec = (stepTime - this.previousStepTime) / 1e6;
            distance = speedKMH / 3600d * ellapsedMillisec; // meters
        }
        this.previousStepTime = stepTime;
        return distance;
    }

    private void initComponents()
    {
        //======== this ========
        setLayout(new BoxLayout(this, BoxLayout.PAGE_AXIS));

        //======== "View" Section ========
        Box viewPanel = Box.createVerticalBox();
        {
            //viewBox.setBorder(new EmptyBorder(5, 10, 12, 5));
            viewPanel.setBorder(new CompoundBorder(
                new TitledBorder(BorderFactory.createMatteBorder(1, 0, 0, 0, Color.GRAY), "View"),
                new EmptyBorder(5, 5, 5, 5)));

            //======== View Mode Panel ========
            Box modePanel = Box.createHorizontalBox();
            modePanel.setAlignmentX(Component.LEFT_ALIGNMENT);
            {
                //---- "Subsurface" Button ----
                this.subsurfaceButton = new JCheckBox();
                this.subsurfaceButton.setText("Subsurface");
                this.subsurfaceButton.addItemListener(new ItemListener() {
                    public void itemStateChanged(ItemEvent e) {
                        subsurfaceButtonItemStateChanged();
                    }
                });
                modePanel.add(this.subsurfaceButton);
                modePanel.add(Box.createHorizontalStrut(20));

                //---- "EXAMINE" Button ----
                this.examineButton = new JRadioButton();
                this.examineButton.setText("EXAMINE");
                this.examineButton.setHorizontalAlignment(SwingConstants.CENTER);
                this.examineButton.setEnabled(false);
                this.examineButton.addItemListener(new ItemListener() {
                    public void itemStateChanged(ItemEvent e) {
                        examineButtonItemStateChanged();
                    }
                });
                modePanel.add(this.examineButton);
                modePanel.add(Box.createHorizontalStrut(20));

                //---- "FLY-IT" Button ----
                this.followButton = new JRadioButton();
                this.followButton.setText("FLY-IT");
                this.followButton.setHorizontalAlignment(SwingConstants.CENTER);
                this.followButton.setEnabled(false);
                this.followButton.addItemListener(new ItemListener() {
                    public void itemStateChanged(ItemEvent e) {
                        followButtonItemStateChanged();
                    }
                });
                modePanel.add(this.followButton);
                modePanel.add(Box.createHorizontalStrut(20));

                //---- "FREE" Button ----
                this.freeButton = new JRadioButton();
                this.freeButton.setText("FREE");
                this.freeButton.setSelected(true);
                this.freeButton.setHorizontalAlignment(SwingConstants.CENTER);
                this.freeButton.addItemListener(new ItemListener() {
                    public void itemStateChanged(ItemEvent e) {
                        freeButtonItemStateChanged();
                    }
                });
                modePanel.add(this.freeButton);

                //--------
                modePanel.add(Box.createHorizontalGlue());

                //---- View Mode ButtonGroup ----
                ButtonGroup viewModeButtonGroup = new ButtonGroup();
                viewModeButtonGroup.add(this.examineButton);
                viewModeButtonGroup.add(this.followButton);
                viewModeButtonGroup.add(this.freeButton);
            }
            viewPanel.add(modePanel);
            viewPanel.add(Box.createVerticalStrut(10));

            //======== Clip Control Panel ========
            Box clipPanel = Box.createHorizontalBox();
            clipPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
            {
                //---- "Override Clip Distance" Button ----
                this.overrideClipDistanceButton = new JCheckBox();
                this.overrideClipDistanceButton.setText("Override Clip Distance:");
                this.overrideClipDistanceButton.addItemListener(new ItemListener() {
                    public void itemStateChanged(ItemEvent e) {
                        overrideClipDistanceButtonStateChanged();
                    }
                });
                clipPanel.add(this.overrideClipDistanceButton);
                clipPanel.add(Box.createHorizontalStrut(3));

                int minDistance = 10;
                int maxDistance = 100000;
                this.clipDistanceSlider = new JSlider();
                this.clipDistanceSlider.setMinimum(minDistance);
                this.clipDistanceSlider.setMaximum(maxDistance);
                this.clipDistanceSlider.setValue(minDistance + (maxDistance - minDistance) / 2);
                this.clipDistanceSlider.addChangeListener(new ChangeListener() {
                    public void stateChanged(ChangeEvent event) {
                        clipDistanceStateChanged();
                    }
                });
                clipPanel.add(this.clipDistanceSlider);
            }
            //viewPanel.add(clipPanel);
        }
        add(viewPanel);

        //======== "Position" Section ========
        Box positionPanel = Box.createVerticalBox();
        positionPanel.setBorder(new CompoundBorder(
                new TitledBorder(BorderFactory.createMatteBorder(1, 0, 0, 0, Color.GRAY), "Position"),
                new EmptyBorder(5, 5, 5, 5)));
        {
            //======== Position Readout ========
            JPanel readoutPanel = new JPanel();
            readoutPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
            readoutPanel.setLayout(new GridLayout(1, 3));
            {
                //======== Latitude ========
                Box lat = Box.createHorizontalBox();
                {
                    this.latLabel = new JLabel();
                    this.latLabel.setText("Lat:");
                    lat.add(this.latLabel);
                    lat.add(Box.createHorizontalStrut(3));

                    this.latReadout = new JLabel();
                    this.latReadout.setText("-90.0000");
                    lat.add(this.latReadout);
                    lat.add(Box.createHorizontalGlue());                    
                }
                readoutPanel.add(lat);

                //======== Longitude ========
                Box lon = Box.createHorizontalBox();
                {
                    this.lonLabel = new JLabel();
                    this.lonLabel.setText("Lon:");
                    lon.add(this.lonLabel);
                    lon.add(Box.createHorizontalStrut(3));

                    //---- lonReadout ----
                    this.lonReadout = new JLabel();
                    this.lonReadout.setText("-180.0000");
                    lon.add(this.lonReadout);
                    lon.add(Box.createHorizontalGlue());
                }
                readoutPanel.add(lon);

                //======== Altitude ========
                Box alt = Box.createHorizontalBox();
                {
                    this.altLabel = new JLabel();
                    this.altLabel.setText("Alt:");
                    alt.add(this.altLabel);
                    alt.add(Box.createHorizontalStrut(3));

                    this.altReadout = new JLabel();
                    this.altReadout.setText("50,000.000");
                    alt.add(this.altReadout);
                    alt.add(Box.createHorizontalGlue());
                }
                readoutPanel.add(alt);
            }
            positionPanel.add(readoutPanel);
            positionPanel.add(Box.createVerticalStrut(5));

            //======== Position Spinner, Slider ========
            JPanel positionControlPanel = new JPanel();
            positionControlPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
            positionControlPanel.setLayout(new BorderLayout(10, 0));
            {
                //---- Position Spinner ----
                this.positionSpinner = new JSpinner();
                this.positionSpinner.setModel(new SpinnerListModel(new String[] {"   0"}));
                this.positionSpinner.setEnabled(false);
                this.positionSpinner.addChangeListener(new ChangeListener() {
                    public void stateChanged(ChangeEvent e) {
                        positionSpinnerStateChanged();
                    }
                });
                positionControlPanel.add(this.positionSpinner, BorderLayout.WEST);

                //---- Position Slider ----
                this.positionSlider = new JSlider();
                this.positionSlider.setMaximum(1000);
                this.positionSlider.setValue(0);
                this.positionSlider.setEnabled(false);
                this.positionSlider.addChangeListener(new ChangeListener() {
                    public void stateChanged(ChangeEvent e) {
                        positionSliderStateChanged();
                    }
                });
                positionControlPanel.add(this.positionSlider, BorderLayout.CENTER);
            }
            positionPanel.add(positionControlPanel);
            positionPanel.add(Box.createVerticalStrut(10));

            //======== "VCR" Panel ========
            Box vcrPanel = Box.createHorizontalBox();
            vcrPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
            {
                vcrPanel.add(Box.createHorizontalGlue());
                //---- "<<" Button ----
                this.fastReverseButton = new JButton();
                this.fastReverseButton.setText("<<");
                this.fastReverseButton.setEnabled(false);
                this.fastReverseButton.addActionListener(new ActionListener() {
                    public void actionPerformed(ActionEvent e) {
                        fastReverseButtonActionPerformed();
                    }
                });
                vcrPanel.add(this.fastReverseButton);
                vcrPanel.add(Box.createHorizontalStrut(3));

                //---- "<" Button----
                this.reverseButton = new JButton();
                this.reverseButton.setText("<");
                this.reverseButton.setEnabled(false);
                this.reverseButton.addActionListener(new ActionListener() {
                    public void actionPerformed(ActionEvent e) {
                        reverseButtonActionPerformed();
                    }
                });
                vcrPanel.add(this.reverseButton);
                vcrPanel.add(Box.createHorizontalStrut(3));

                //---- "Stop" Button ----
                this.stopButton = new JButton();
                this.stopButton.setText("Stop");
                this.stopButton.setEnabled(false);
                this.stopButton.addActionListener(new ActionListener() {
                    public void actionPerformed(ActionEvent e) {
                        stopButtonActionPerformed();
                    }
                });
                vcrPanel.add(this.stopButton);
                vcrPanel.add(Box.createHorizontalStrut(3));

                //---- ">" Button ----
                this.forwardButton = new JButton();
                this.forwardButton.setText(">");
                this.forwardButton.setBorder(UIManager.getBorder("Button.border"));
                this.forwardButton.setEnabled(false);
                this.forwardButton.addActionListener(new ActionListener() {
                    public void actionPerformed(ActionEvent e) {
                        forwardButtonActionPerformed();
                    }
                });
                vcrPanel.add(this.forwardButton);
                vcrPanel.add(Box.createHorizontalStrut(3));

                //---- ">>" Button ----
                this.fastForwardButton = new JButton();
                this.fastForwardButton.setText(">>");
                this.fastForwardButton.setEnabled(false);
                this.fastForwardButton.addActionListener(new ActionListener() {
                    public void actionPerformed(ActionEvent e) {
                        fastForwardButtonActionPerformed();
                    }
                });
                vcrPanel.add(this.fastForwardButton);

                //--------
                vcrPanel.add(Box.createHorizontalGlue());
            }
            positionPanel.add(vcrPanel);
            positionPanel.add(Box.createVerticalStrut(10));

            //======== "Speed" Panel ========
            Box speedPanel = Box.createHorizontalBox();
            speedPanel.setAlignmentX(Component.LEFT_ALIGNMENT);
            {
                //---- "Speed:" Label ----
                this.speedLabel = new JLabel();
                this.speedLabel.setText("Speed:");
                speedPanel.add(this.speedLabel);
                speedPanel.add(Box.createHorizontalStrut(10));

                //---- Speed Spinner ----
                int numValues = 100;
                String[] speedValues = new String[numValues];
                for (int i = 1; i <= numValues; i++)
                    speedValues[i - 1] = "" + (i * 10);
                this.speedSpinner = new JSpinner();
                this.speedSpinner.setModel(new SpinnerListModel(speedValues));
                this.speedSpinner.setValue("200");
                this.speedSpinner.setEnabled(false);
                speedPanel.add(this.speedSpinner);
                speedPanel.add(Box.createHorizontalStrut(10));

                //---- Speed Multiplier Spinner ----
                this.speedFactorSpinner = new JSpinner();
                this.speedFactorSpinner.setModel(new SpinnerListModel(
                    new String[] {"x.12", "x.25", "x.50", "x1", "x2", "x3", "x4", "x5", "x7", "x10"}));
                this.speedFactorSpinner.setValue("x1");
                this.speedFactorSpinner.setEnabled(false);
                speedPanel.add(this.speedFactorSpinner);
            }
            positionPanel.add(speedPanel);
        }
        add(positionPanel);
    }
}