Beispiel #1
0
 /**
  * Adds a popup menu.
  *
  * @param label the label
  * @param items the menu items
  * @param defaultItem the menu item initially selected
  */
 public void addChoice(String label, String[] items, String defaultItem) {
   String label2 = label;
   if (label2.indexOf('_') != -1) label2 = label2.replace('_', ' ');
   Label theLabel = makeLabel(label2);
   c.gridx = 0;
   c.gridy = y;
   c.anchor = GridBagConstraints.EAST;
   c.gridwidth = 1;
   if (choice == null) {
     choice = new Vector(4);
     defaultChoiceIndexes = new Vector(4);
     c.insets = getInsets(5, 0, 5, 0);
   } else c.insets = getInsets(0, 0, 5, 0);
   grid.setConstraints(theLabel, c);
   add(theLabel);
   Choice thisChoice = new Choice();
   thisChoice.addKeyListener(this);
   thisChoice.addItemListener(this);
   for (int i = 0; i < items.length; i++) thisChoice.addItem(items[i]);
   if (defaultItem != null) thisChoice.select(defaultItem);
   else thisChoice.select(0);
   c.gridx = 1;
   c.gridy = y;
   c.anchor = GridBagConstraints.WEST;
   grid.setConstraints(thisChoice, c);
   add(thisChoice);
   choice.addElement(thisChoice);
   int index = thisChoice.getSelectedIndex();
   defaultChoiceIndexes.addElement(new Integer(index));
   if (Recorder.record || macro) saveLabel(thisChoice, label);
   y++;
 }
Beispiel #2
0
 /**
  * Adds a numeric field. The first word of the label must be unique or command recording will not
  * work.
  *
  * @param label the label
  * @param defaultValue value to be initially displayed
  * @param digits number of digits to right of decimal point
  * @param columns width of field in characters
  * @param units a string displayed to the right of the field
  */
 public void addNumericField(
     String label, double defaultValue, int digits, int columns, String units) {
   String label2 = label;
   if (label2.indexOf('_') != -1) label2 = label2.replace('_', ' ');
   Label theLabel = makeLabel(label2);
   c.gridx = 0;
   c.gridy = y;
   c.anchor = GridBagConstraints.EAST;
   c.gridwidth = 1;
   if (firstNumericField) c.insets = getInsets(5, 0, 3, 0);
   else c.insets = getInsets(0, 0, 3, 0);
   grid.setConstraints(theLabel, c);
   add(theLabel);
   if (numberField == null) {
     numberField = new Vector(5);
     defaultValues = new Vector(5);
     defaultText = new Vector(5);
   }
   if (IJ.isWindows()) columns -= 2;
   if (columns < 1) columns = 1;
   String defaultString = IJ.d2s(defaultValue, digits);
   if (Double.isNaN(defaultValue)) defaultString = "";
   TextField tf = new TextField(defaultString, columns);
   if (IJ.isLinux()) tf.setBackground(Color.white);
   tf.addActionListener(this);
   tf.addTextListener(this);
   tf.addFocusListener(this);
   tf.addKeyListener(this);
   numberField.addElement(tf);
   defaultValues.addElement(new Double(defaultValue));
   defaultText.addElement(tf.getText());
   c.gridx = 1;
   c.gridy = y;
   c.anchor = GridBagConstraints.WEST;
   tf.setEditable(true);
   // if (firstNumericField) tf.selectAll();
   firstNumericField = false;
   if (units == null || units.equals("")) {
     grid.setConstraints(tf, c);
     add(tf);
   } else {
     Panel panel = new Panel();
     panel.setLayout(new FlowLayout(FlowLayout.LEFT, 0, 0));
     panel.add(tf);
     panel.add(new Label(" " + units));
     grid.setConstraints(panel, c);
     add(panel);
   }
   if (Recorder.record || macro) saveLabel(tf, label);
   y++;
 }
Beispiel #3
0
 /**
  * Adds a radio button group.
  *
  * @param label group label (or null)
  * @param items radio button labels
  * @param rows number of rows
  * @param columns number of columns
  * @param defaultItem button initially selected
  */
 public void addRadioButtonGroup(
     String label, String[] items, int rows, int columns, String defaultItem) {
   Panel panel = new Panel();
   int n = items.length;
   panel.setLayout(new GridLayout(rows, columns, 0, 0));
   CheckboxGroup cg = new CheckboxGroup();
   for (int i = 0; i < n; i++) {
     Checkbox cb = new Checkbox(items[i], cg, items[i].equals(defaultItem));
     cb.addItemListener(this);
     panel.add(cb);
   }
   if (radioButtonGroups == null) radioButtonGroups = new Vector();
   radioButtonGroups.addElement(cg);
   Insets insets = getInsets(5, 10, 0, 0);
   if (label == null || label.equals("")) {
     label = "rbg" + radioButtonGroups.size();
     insets.top += 5;
   } else {
     setInsets(10, insets.left, 0);
     addMessage(label);
     insets.top = 2;
     insets.left += 10;
   }
   c.gridx = 0;
   c.gridy = y;
   c.gridwidth = 2;
   c.anchor = GridBagConstraints.WEST;
   c.insets = new Insets(insets.top, insets.left, 0, 0);
   grid.setConstraints(panel, c);
   add(panel);
   if (Recorder.record || macro) saveLabel(cg, label);
   y++;
 }
Beispiel #4
0
  public Channels() {
    super("Channels");
    if (instance != null) {
      instance.toFront();
      return;
    }
    WindowManager.addWindow(this);
    instance = this;
    GridBagLayout gridbag = new GridBagLayout();
    GridBagConstraints c = new GridBagConstraints();
    setLayout(gridbag);
    int y = 0;
    c.gridx = 0;
    c.gridy = y++;
    c.gridwidth = 1;
    c.fill = GridBagConstraints.BOTH;
    c.anchor = GridBagConstraints.CENTER;
    int margin = 32;
    if (IJ.isMacOSX()) margin = 20;
    c.insets = new Insets(10, margin, 10, margin);
    choice = new Choice();
    for (int i = 0; i < modes.length; i++) choice.addItem(modes[i]);
    choice.select(0);
    choice.addItemListener(this);
    add(choice, c);

    CompositeImage ci = getImage();
    int nCheckBoxes = ci != null ? ci.getNChannels() : 3;
    if (nCheckBoxes > CompositeImage.MAX_CHANNELS) nCheckBoxes = CompositeImage.MAX_CHANNELS;
    checkbox = new Checkbox[nCheckBoxes];
    for (int i = 0; i < nCheckBoxes; i++) {
      checkbox[i] = new Checkbox("Channel " + (i + 1), true);
      c.insets = new Insets(0, 25, i < nCheckBoxes - 1 ? 0 : 10, 5);
      c.gridy = y++;
      add(checkbox[i], c);
      checkbox[i].addItemListener(this);
    }

    c.insets = new Insets(0, 15, 10, 15);
    c.fill = GridBagConstraints.NONE;
    c.gridy = y++;
    moreButton = new Button(moreLabel);
    moreButton.addActionListener(this);
    add(moreButton, c);
    update();

    pm = new PopupMenu();
    for (int i = 0; i < menuItems.length; i++) addPopupItem(menuItems[i]);
    add(pm);

    addKeyListener(IJ.getInstance()); // ImageJ handles keyboard shortcuts
    setResizable(false);
    pack();
    if (location == null) {
      GUI.center(this);
      location = getLocation();
    } else setLocation(location);
    show();
  }
Beispiel #5
0
 /**
  * Adds a group of checkboxs using a grid layout.
  *
  * @param rows the number of rows
  * @param columns the number of columns
  * @param labels the labels
  * @param defaultValues the initial states
  * @param headings the column headings Example:
  *     http://imagej.nih.gov/ij/plugins/multi-column-dialog/index.html
  */
 public void addCheckboxGroup(
     int rows, int columns, String[] labels, boolean[] defaultValues, String[] headings) {
   Panel panel = new Panel();
   int nRows = headings != null ? rows + 1 : rows;
   panel.setLayout(new GridLayout(nRows, columns, 6, 0));
   int startCBIndex = cbIndex;
   if (checkbox == null) checkbox = new Vector(12);
   if (headings != null) {
     Font font = new Font("SansSerif", Font.BOLD, 12);
     for (int i = 0; i < columns; i++) {
       if (i > headings.length - 1 || headings[i] == null) panel.add(new Label(""));
       else {
         Label label = new Label(headings[i]);
         label.setFont(font);
         panel.add(label);
       }
     }
   }
   int i1 = 0;
   int[] index = new int[labels.length];
   for (int row = 0; row < rows; row++) {
     for (int col = 0; col < columns; col++) {
       int i2 = col * rows + row;
       if (i2 >= labels.length) break;
       index[i1] = i2;
       String label = labels[i1];
       if (label == null || label.length() == 0) {
         Label lbl = new Label("");
         panel.add(lbl);
         i1++;
         continue;
       }
       if (label.indexOf('_') != -1) label = label.replace('_', ' ');
       Checkbox cb = new Checkbox(label);
       checkbox.addElement(cb);
       cb.setState(defaultValues[i1]);
       cb.addItemListener(this);
       if (Recorder.record || macro) saveLabel(cb, labels[i1]);
       if (IJ.isLinux()) {
         Panel panel2 = new Panel();
         panel2.setLayout(new BorderLayout());
         panel2.add("West", cb);
         panel.add(panel2);
       } else panel.add(cb);
       i1++;
     }
   }
   c.gridx = 0;
   c.gridy = y;
   c.gridwidth = 2;
   c.anchor = GridBagConstraints.WEST;
   c.insets = getInsets(10, 0, 0, 0);
   grid.setConstraints(panel, c);
   add(panel);
   y++;
 }
Beispiel #6
0
 /**
  * Adds a Panel to the dialog with custom contraint and insets. The defaults are
  * GridBagConstraints.WEST (left justified) and "new Insets(5, 0, 0, 0)" (5 pixels of padding at
  * the top).
  */
 public void addPanel(Panel panel, int constraints, Insets insets) {
   c.gridx = 0;
   c.gridy = y;
   c.gridwidth = 2;
   c.anchor = constraints;
   c.insets = insets;
   grid.setConstraints(panel, c);
   add(panel);
   y++;
 }
Beispiel #7
0
 /**
  * Adds a text field.
  *
  * @param label the label
  * @param defaultText text initially displayed
  * @param columns width of the text field
  */
 public void addStringField(String label, String defaultText, int columns) {
   String label2 = label;
   if (label2.indexOf('_') != -1) label2 = label2.replace('_', ' ');
   Label theLabel = makeLabel(label2);
   c.gridx = 0;
   c.gridy = y;
   c.anchor = GridBagConstraints.EAST;
   c.gridwidth = 1;
   boolean custom = customInsets;
   if (stringField == null) {
     stringField = new Vector(4);
     defaultStrings = new Vector(4);
     c.insets = getInsets(5, 0, 5, 0);
   } else c.insets = getInsets(0, 0, 5, 0);
   grid.setConstraints(theLabel, c);
   add(theLabel);
   if (custom) {
     if (stringField.size() == 0) c.insets = getInsets(5, 0, 5, 0);
     else c.insets = getInsets(0, 0, 5, 0);
   }
   TextField tf = new TextField(defaultText, columns);
   if (IJ.isLinux()) tf.setBackground(Color.white);
   tf.setEchoChar(echoChar);
   echoChar = 0;
   tf.addActionListener(this);
   tf.addTextListener(this);
   tf.addFocusListener(this);
   tf.addKeyListener(this);
   c.gridx = 1;
   c.gridy = y;
   c.anchor = GridBagConstraints.WEST;
   grid.setConstraints(tf, c);
   tf.setEditable(true);
   add(tf);
   stringField.addElement(tf);
   defaultStrings.addElement(defaultText);
   if (Recorder.record || macro) saveLabel(tf, label);
   y++;
 }
Beispiel #8
0
 /**
  * Adds a message consisting of one or more lines of text, which will be displayed using the
  * specified font and color.
  */
 public void addMessage(String text, Font font, Color color) {
   theLabel = null;
   if (text.indexOf('\n') >= 0) theLabel = new MultiLineLabel(text);
   else theLabel = new Label(text);
   // theLabel.addKeyListener(this);
   c.gridx = 0;
   c.gridy = y;
   c.gridwidth = 2;
   c.anchor = GridBagConstraints.WEST;
   c.insets = getInsets(text.equals("") ? 0 : 10, 20, 0, 0);
   c.fill = GridBagConstraints.HORIZONTAL;
   grid.setConstraints(theLabel, c);
   if (font != null) theLabel.setFont(font);
   if (color != null) theLabel.setForeground(color);
   add(theLabel);
   c.fill = GridBagConstraints.NONE;
   y++;
 }
Beispiel #9
0
 /**
  * Adds one or two (side by side) text areas.
  *
  * @param text1 initial contents of the first text area
  * @param text2 initial contents of the second text area or null
  * @param rows the number of rows
  * @param columns the number of columns
  */
 public void addTextAreas(String text1, String text2, int rows, int columns) {
   if (textArea1 != null) return;
   Panel panel = new Panel();
   textArea1 = new TextArea(text1, rows, columns, TextArea.SCROLLBARS_NONE);
   if (IJ.isLinux()) textArea1.setBackground(Color.white);
   textArea1.addTextListener(this);
   panel.add(textArea1);
   if (text2 != null) {
     textArea2 = new TextArea(text2, rows, columns, TextArea.SCROLLBARS_NONE);
     if (IJ.isLinux()) textArea2.setBackground(Color.white);
     panel.add(textArea2);
   }
   c.gridx = 0;
   c.gridy = y;
   c.gridwidth = 2;
   c.anchor = GridBagConstraints.WEST;
   c.insets = getInsets(15, 20, 0, 0);
   grid.setConstraints(panel, c);
   add(panel);
   y++;
 }
Beispiel #10
0
 /**
  * Adds a checkbox; does not make it recordable if isPreview is true. With isPreview true, the
  * checkbox can be referred to as previewCheckbox from hereon.
  */
 private void addCheckbox(String label, boolean defaultValue, boolean isPreview) {
   String label2 = label;
   if (label2.indexOf('_') != -1) label2 = label2.replace('_', ' ');
   if (checkbox == null) {
     checkbox = new Vector(4);
     c.insets = getInsets(15, 20, 0, 0);
   } else c.insets = getInsets(0, 20, 0, 0);
   c.gridx = 0;
   c.gridy = y;
   c.gridwidth = 2;
   c.anchor = GridBagConstraints.WEST;
   Checkbox cb = new Checkbox(label2);
   grid.setConstraints(cb, c);
   cb.setState(defaultValue);
   cb.addItemListener(this);
   cb.addKeyListener(this);
   add(cb);
   checkbox.addElement(cb);
   // ij.IJ.write("addCheckbox: "+ y+" "+cbIndex);
   if (!isPreview && (Recorder.record || macro)) // preview checkbox is not recordable
   saveLabel(cb, label);
   if (isPreview) previewCheckbox = cb;
   y++;
 }
Beispiel #11
0
  /**
   * Adds a slider (scroll bar) to the dialog box. Floating point values will be used if
   * (maxValue-minValue)<=5.0 and either minValue or maxValue are non-integer.
   *
   * @param label the label
   * @param minValue the minimum value of the slider
   * @param maxValue the maximum value of the slider
   * @param defaultValue the initial value of the slider
   */
  public void addSlider(String label, double minValue, double maxValue, double defaultValue) {
    if (defaultValue < minValue) defaultValue = minValue;
    if (defaultValue > maxValue) defaultValue = maxValue;
    int columns = 4;
    int digits = 0;
    double scale = 1.0;
    if ((maxValue - minValue) <= 5.0
        && (minValue != (int) minValue
            || maxValue != (int) maxValue
            || defaultValue != (int) defaultValue)) {
      scale = 20.0;
      minValue *= scale;
      maxValue *= scale;
      defaultValue *= scale;
      digits = 2;
    }
    String label2 = label;
    if (label2.indexOf('_') != -1) label2 = label2.replace('_', ' ');
    Label theLabel = makeLabel(label2);
    c.gridx = 0;
    c.gridy = y;
    c.anchor = GridBagConstraints.EAST;
    c.gridwidth = 1;
    c.insets = new Insets(0, 0, 3, 0);
    grid.setConstraints(theLabel, c);
    add(theLabel);

    if (slider == null) {
      slider = new Vector(5);
      sliderIndexes = new int[MAX_SLIDERS];
      sliderScales = new double[MAX_SLIDERS];
    }
    Scrollbar s =
        new Scrollbar(
            Scrollbar.HORIZONTAL, (int) defaultValue, 1, (int) minValue, (int) maxValue + 1);
    GUI.fix(s);
    slider.addElement(s);
    s.addAdjustmentListener(this);
    s.setUnitIncrement(1);

    if (numberField == null) {
      numberField = new Vector(5);
      defaultValues = new Vector(5);
      defaultText = new Vector(5);
    }
    if (IJ.isWindows()) columns -= 2;
    if (columns < 1) columns = 1;
    TextField tf = new TextField(IJ.d2s(defaultValue / scale, digits), columns);
    if (IJ.isLinux()) tf.setBackground(Color.white);
    tf.addActionListener(this);
    tf.addTextListener(this);
    tf.addFocusListener(this);
    tf.addKeyListener(this);
    numberField.addElement(tf);
    sliderIndexes[slider.size() - 1] = numberField.size() - 1;
    sliderScales[slider.size() - 1] = scale;
    defaultValues.addElement(new Double(defaultValue / scale));
    defaultText.addElement(tf.getText());
    tf.setEditable(true);
    firstSlider = false;

    Panel panel = new Panel();
    GridBagLayout pgrid = new GridBagLayout();
    GridBagConstraints pc = new GridBagConstraints();
    panel.setLayout(pgrid);
    pc.gridx = 0;
    pc.gridy = 0;
    pc.gridwidth = 1;
    pc.ipadx = 85;
    pc.anchor = GridBagConstraints.WEST;
    pgrid.setConstraints(s, pc);
    panel.add(s);
    pc.ipadx = 0; // reset
    // text field
    pc.gridx = 1;
    pc.insets = new Insets(5, 5, 0, 0);
    pc.anchor = GridBagConstraints.EAST;
    pgrid.setConstraints(tf, pc);
    panel.add(tf);

    grid.setConstraints(panel, c);
    c.gridx = 1;
    c.gridy = y;
    c.gridwidth = 1;
    c.anchor = GridBagConstraints.WEST;
    c.insets = new Insets(0, 0, 0, 0);
    grid.setConstraints(panel, c);
    add(panel);
    y++;
    if (Recorder.record || macro) saveLabel(tf, label);
  }
Beispiel #12
0
 /** Displays this dialog box. */
 public void showDialog() {
   if (macro) {
     dispose();
     recorderOn = Recorder.record && Recorder.recordInMacros;
   } else {
     if (pfr != null) // prepare preview (not in macro mode): tell the PlugInFilterRunner to listen
     pfr.setDialog(this);
     Panel buttons = new Panel();
     buttons.setLayout(new FlowLayout(FlowLayout.CENTER, 5, 0));
     cancel = new Button(cancelLabel);
     cancel.addActionListener(this);
     cancel.addKeyListener(this);
     if (yesNoCancel) {
       okLabel = yesLabel;
       no = new Button(noLabel);
       no.addActionListener(this);
       no.addKeyListener(this);
     }
     okay = new Button(okLabel);
     okay.addActionListener(this);
     okay.addKeyListener(this);
     boolean addHelp = helpURL != null;
     if (addHelp) {
       help = new Button(helpLabel);
       help.addActionListener(this);
       help.addKeyListener(this);
     }
     if (IJ.isMacintosh()) {
       if (addHelp) buttons.add(help);
       if (yesNoCancel) buttons.add(no);
       if (!hideCancelButton) buttons.add(cancel);
       buttons.add(okay);
     } else {
       buttons.add(okay);
       if (yesNoCancel) buttons.add(no);
       ;
       if (!hideCancelButton) buttons.add(cancel);
       if (addHelp) buttons.add(help);
     }
     c.gridx = 0;
     c.gridy = y;
     c.anchor = GridBagConstraints.EAST;
     c.gridwidth = 2;
     c.insets = new Insets(15, 0, 0, 0);
     grid.setConstraints(buttons, c);
     add(buttons);
     if (IJ.isMacintosh()) setResizable(false);
     pack();
     setup();
     if (centerDialog) GUI.center(this);
     setVisible(true);
     recorderOn = Recorder.record;
     IJ.wait(50); // work around for Sun/WinNT bug
   }
   /* For plugins that read their input only via dialogItemChanged, call it at least once */
   if (!wasCanceled && dialogListeners != null && dialogListeners.size() > 0) {
     resetCounters();
     ((DialogListener) dialogListeners.elementAt(0)).dialogItemChanged(this, null);
     recorderOn = false;
   }
   resetCounters();
 }
    public BandAdjuster() {

      super("Threshold Colour");
      if (instance != null) {
        instance.toFront();
        return;
      }
      imp = WindowManager.getCurrentImage();
      if (imp == null) {
        IJ.beep();
        IJ.showStatus("No image");
        return;
      }
      IJ.run("Select None");
      thread = new Thread(this, "BandAdjuster");
      WindowManager.addWindow(this);
      instance = this;
      IJ.register(PasteController.class);

      ij = IJ.getInstance();
      Font font = new Font("SansSerif", Font.PLAIN, 10);
      GridBagLayout gridbag = new GridBagLayout();
      GridBagConstraints c = new GridBagConstraints();
      setLayout(gridbag);

      int y = 0;
      c.gridx = 0;
      c.gridy = y;
      c.gridwidth = 1;
      c.weightx = 0;
      c.insets = new Insets(5, 0, 0, 0);
      labelh = new Label("Hue", Label.CENTER);
      add(labelh, c);

      c.gridx = 1;
      c.gridy = y++;
      c.gridwidth = 1;
      c.weightx = 0;
      c.insets = new Insets(7, 0, 0, 0);
      labelf = new Label("Filter type", Label.RIGHT);
      add(labelf, c);

      // plot
      c.gridx = 0;
      c.gridy = y;
      c.gridwidth = 1;
      c.fill = c.BOTH;
      c.anchor = c.CENTER;
      c.insets = new Insets(0, 5, 0, 0);
      add(plot, c);

      // checkboxes
      panelh = new Panel();
      filterTypeH = new CheckboxGroup();
      bandPassH = new Checkbox("Pass");
      bandPassH.setCheckboxGroup(filterTypeH);
      bandPassH.addItemListener(this);
      panelh.add(bandPassH);
      bandStopH = new Checkbox("Stop");
      bandStopH.setCheckboxGroup(filterTypeH);
      bandStopH.addItemListener(this);
      panelh.add(bandStopH);
      bandPassH.setState(true);
      c.gridx = 1;
      c.gridy = y++;
      c.gridwidth = 2;
      c.insets = new Insets(5, 0, 0, 0);
      add(panelh, c);

      // minHue slider
      minSlider = new Scrollbar(Scrollbar.HORIZONTAL, 0, 1, 0, sliderRange);
      c.gridx = 0;
      c.gridy = y++;
      c.gridwidth = 1;
      c.weightx = IJ.isMacintosh() ? 90 : 100;
      c.fill = c.HORIZONTAL;
      c.insets = new Insets(5, 5, 0, 0);

      add(minSlider, c);
      minSlider.addAdjustmentListener(this);
      minSlider.setUnitIncrement(1);

      // minHue slider label
      c.gridx = 1;
      c.gridwidth = 1;
      c.weightx = IJ.isMacintosh() ? 10 : 0;
      c.insets = new Insets(5, 0, 0, 0);
      label1 = new Label("       ", Label.LEFT);
      label1.setFont(font);
      add(label1, c);

      // maxHue sliderHue
      maxSlider = new Scrollbar(Scrollbar.HORIZONTAL, 0, 1, 0, sliderRange);
      c.gridx = 0;
      c.gridy = y;
      c.gridwidth = 1;
      c.weightx = 100;
      c.insets = new Insets(5, 5, 0, 0);
      add(maxSlider, c);
      maxSlider.addAdjustmentListener(this);
      maxSlider.setUnitIncrement(1);

      // maxHue slider label
      c.gridx = 1;
      c.gridwidth = 1;
      c.gridy = y++;
      c.weightx = 0;
      c.insets = new Insets(5, 0, 0, 0);
      label2 = new Label("       ", Label.LEFT);
      label2.setFont(font);
      add(label2, c);

      // =====
      c.gridx = 0;
      c.gridy = y++;
      c.gridwidth = 1;
      c.weightx = 0;
      c.insets = new Insets(10, 0, 0, 0);
      labels = new Label("Saturation", Label.CENTER);
      add(labels, c);

      // plot
      c.gridx = 0;
      c.gridy = y;
      c.gridwidth = 1;
      c.fill = c.BOTH;
      c.anchor = c.CENTER;
      c.insets = new Insets(0, 5, 0, 0);
      add(splot, c);

      // checkboxes
      panels = new Panel();
      filterTypeS = new CheckboxGroup();
      bandPassS = new Checkbox("Pass");
      bandPassS.setCheckboxGroup(filterTypeS);
      bandPassS.addItemListener(this);
      panels.add(bandPassS);
      bandStopS = new Checkbox("Stop");
      bandStopS.setCheckboxGroup(filterTypeS);
      bandStopS.addItemListener(this);
      panels.add(bandStopS);
      bandPassS.setState(true);
      c.gridx = 1;
      c.gridy = y++;
      c.gridwidth = 2;
      c.insets = new Insets(5, 0, 0, 0);
      add(panels, c);

      // minSat slider
      minSlider2 = new Scrollbar(Scrollbar.HORIZONTAL, 0, 1, 0, sliderRange);
      c.gridx = 0;
      c.gridy = y++;
      c.gridwidth = 1;
      c.weightx = IJ.isMacintosh() ? 90 : 100;
      c.fill = c.HORIZONTAL;
      c.insets = new Insets(5, 5, 0, 0);
      add(minSlider2, c);
      minSlider2.addAdjustmentListener(this);
      minSlider2.setUnitIncrement(1);

      // minSat slider label
      c.gridx = 1;
      c.gridwidth = 1;
      c.weightx = IJ.isMacintosh() ? 10 : 0;
      c.insets = new Insets(5, 0, 0, 0);
      label3 = new Label("       ", Label.LEFT);
      label3.setFont(font);
      add(label3, c);

      // maxSat slider
      maxSlider2 = new Scrollbar(Scrollbar.HORIZONTAL, 0, 1, 0, sliderRange);
      c.gridx = 0;
      c.gridy = y++;
      c.gridwidth = 1;
      c.weightx = 100;
      c.insets = new Insets(5, 5, 0, 0);
      add(maxSlider2, c);
      maxSlider2.addAdjustmentListener(this);
      maxSlider2.setUnitIncrement(1);

      // maxSat slider label
      c.gridx = 1;
      c.gridwidth = 1;
      c.weightx = 0;
      c.insets = new Insets(5, 0, 0, 0);
      label4 = new Label("       ", Label.LEFT);
      label4.setFont(font);
      add(label4, c);

      // =====
      c.gridx = 0;
      c.gridwidth = 1;
      c.gridy = y++;
      c.weightx = 0;
      c.insets = new Insets(10, 0, 0, 0);
      labelb = new Label("Brightness", Label.CENTER);
      add(labelb, c);

      c.gridx = 0;
      c.gridwidth = 1;
      c.gridy = y;
      c.fill = c.BOTH;
      c.anchor = c.CENTER;
      c.insets = new Insets(0, 5, 0, 0);
      add(bplot, c);

      // checkboxes
      panelb = new Panel();
      filterTypeB = new CheckboxGroup();
      bandPassB = new Checkbox("Pass");
      bandPassB.setCheckboxGroup(filterTypeB);
      bandPassB.addItemListener(this);
      panelb.add(bandPassB);
      bandStopB = new Checkbox("Stop");
      bandStopB.setCheckboxGroup(filterTypeB);
      bandStopB.addItemListener(this);
      panelb.add(bandStopB);
      bandPassB.setState(true);
      c.gridx = 1;
      c.gridy = y++;
      c.gridwidth = 2;
      c.insets = new Insets(5, 0, 0, 0);
      add(panelb, c);

      // minBri slider
      minSlider3 = new Scrollbar(Scrollbar.HORIZONTAL, 0, 1, 0, sliderRange);
      c.gridx = 0;
      c.gridy = y++;
      c.gridwidth = 1;
      c.weightx = IJ.isMacintosh() ? 90 : 100;
      c.fill = c.HORIZONTAL;
      c.insets = new Insets(5, 5, 0, 0);
      add(minSlider3, c);
      minSlider3.addAdjustmentListener(this);
      minSlider3.setUnitIncrement(1);

      // minBri slider label
      c.gridx = 1;
      c.gridwidth = 1;
      c.weightx = IJ.isMacintosh() ? 10 : 0;
      c.insets = new Insets(5, 0, 0, 0);
      label5 = new Label("       ", Label.LEFT);
      label5.setFont(font);
      add(label5, c);

      // maxBri slider
      maxSlider3 = new Scrollbar(Scrollbar.HORIZONTAL, 0, 1, 0, sliderRange);
      c.gridx = 0;
      c.gridy = y++;
      c.gridwidth = 1;
      c.weightx = 100;
      c.insets = new Insets(5, 5, 0, 0);
      add(maxSlider3, c);
      maxSlider3.addAdjustmentListener(this);
      maxSlider3.setUnitIncrement(1);

      // maxBri slider label
      c.gridx = 1;
      c.gridwidth = 1;
      c.weightx = 0;
      c.insets = new Insets(5, 0, 0, 0);
      label6 = new Label("       ", Label.LEFT);
      label6.setFont(font);
      add(label6, c);

      // =====
      panelt = new Panel();
      threshold = new Checkbox("Threshold");
      threshold.addItemListener(this);
      panelt.add(threshold);

      invert = new Checkbox("Invert");
      invert.addItemListener(this);
      panelt.add(invert);

      c.gridx = 0;
      c.gridy = y++;
      c.gridwidth = 2;
      c.insets = new Insets(0, 0, 0, 0);
      add(panelt, c);

      // buttons
      panel = new Panel();
      // panel.setLayout(new GridLayout(2, 2, 0, 0));
      originalB = new Button("Original");
      originalB.setEnabled(false);
      originalB.addActionListener(this);
      originalB.addKeyListener(ij);
      panel.add(originalB);

      filteredB = new Button("Filtered");
      filteredB.setEnabled(false);
      filteredB.addActionListener(this);
      filteredB.addKeyListener(ij);
      panel.add(filteredB);

      stackB = new Button("Stack");
      stackB.addActionListener(this);
      stackB.addKeyListener(ij);
      panel.add(stackB);

      helpB = new Button("Help");
      helpB.addActionListener(this);
      helpB.addKeyListener(ij);
      panel.add(helpB);

      c.gridx = 0;
      c.gridy = y++;
      c.gridwidth = 2;
      c.insets = new Insets(0, 0, 0, 0);
      add(panel, c);

      panelMode = new Panel();

      sampleB = new Button("Sample");
      sampleB.addActionListener(this);
      sampleB.addKeyListener(ij);
      panelMode.add(sampleB);

      colourMode = new CheckboxGroup();
      hsb = new Checkbox("HSB");
      hsb.setCheckboxGroup(colourMode);
      hsb.addItemListener(this);
      panelMode.add(hsb);
      hsb.setState(true);
      rgb = new Checkbox("RGB");
      rgb.setCheckboxGroup(colourMode);
      rgb.addItemListener(this);
      panelMode.add(rgb);

      c.gridx = 0;
      c.gridy = y++;
      c.gridwidth = 2;
      c.insets = new Insets(0, 0, 0, 0);
      add(panelMode, c);

      addKeyListener(ij); // ImageJ handles keyboard shortcuts
      pack();
      GUI.center(this);
      setVisible(true);

      ip = setup(imp);
      if (ip == null) {
        imp.unlock();
        IJ.beep();
        IJ.showStatus("RGB image cannot be thresholded");
        return;
      }
      thread.start();
    }