X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fappletgui%2FFeatureColourChooser.java;h=30733efb404421b7780c936166a26422183fb216;hb=04c8f7bff663aa469127e9eed4164e02933782f1;hp=f4ad1d5162f2c2442050e241e5a9a277c8a7f2de;hpb=2de8acfae59aced665e4c37ad0f7dcc2ed68818e;p=jalview.git

diff --git a/src/jalview/appletgui/FeatureColourChooser.java b/src/jalview/appletgui/FeatureColourChooser.java
index f4ad1d5..30733ef 100644
--- a/src/jalview/appletgui/FeatureColourChooser.java
+++ b/src/jalview/appletgui/FeatureColourChooser.java
@@ -1,76 +1,159 @@
 /*
- * Jalview - A Sequence Alignment Editor and Viewer (Development Version 2.4.1)
- * Copyright (C) 2009 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors
  * 
- * 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 2
- * of the License, or (at your option) any later version.
+ * This file is part of Jalview.
  * 
- * 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.
+ * Jalview 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.
+ *  
+ * Jalview 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, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ * along with Jalview.  If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
  */
 package jalview.appletgui;
 
-import java.util.*;
+import jalview.api.FeatureColourI;
+import jalview.datamodel.GraphLine;
+import jalview.schemes.AnnotationColourGradient;
+import jalview.schemes.FeatureColour;
+import jalview.util.MessageManager;
+
+import java.awt.Checkbox;
+import java.awt.Choice;
+import java.awt.Color;
+import java.awt.Dimension;
+import java.awt.FlowLayout;
+import java.awt.Font;
+import java.awt.Frame;
+import java.awt.GridLayout;
+import java.awt.Label;
+import java.awt.Panel;
+import java.awt.Scrollbar;
+import java.awt.TextField;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.AdjustmentEvent;
+import java.awt.event.AdjustmentListener;
+import java.awt.event.FocusAdapter;
+import java.awt.event.FocusEvent;
+import java.awt.event.ItemEvent;
+import java.awt.event.ItemListener;
+import java.awt.event.MouseEvent;
+import java.awt.event.MouseListener;
+
+public class FeatureColourChooser extends Panel implements ActionListener,
+        AdjustmentListener, ItemListener, MouseListener
+{
+  /*
+   * the absolute min-max range of a feature score is scaled to 
+   * 1000 positions on the colour threshold slider
+   */
+  private static final int SCALE_FACTOR_1K = 1000;
 
-import java.awt.*;
-import java.awt.event.*;
+  private static final String COLON = ":";
 
-import jalview.datamodel.*;
-import jalview.schemes.*;
-import java.awt.Rectangle;
+  private JVDialog frame;
 
-public class FeatureColourChooser extends Panel implements
-        ActionListener, AdjustmentListener, ItemListener, MouseListener
-{
-  Frame frame;
+  private Frame owner;
+
+  private FeatureRenderer fr;
+
+  private FeatureSettings fs = null;
+
+  private FeatureColourI cs;
+
+  private FeatureColourI oldcs;
+
+  private boolean adjusting = false;
+
+  private float min, max;
+
+  private String type = null;
+
+  private AlignFrame af = null;
+
+  private Panel minColour = new Panel();
 
-  FeatureRenderer fr;
-  FeatureSettings fs;
-  AlignmentPanel ap;
+  private Panel maxColour = new Panel();
 
-  GraduatedColor cs;
-  Object oldcs;
+  private Choice threshold = new Choice();
 
-  Hashtable oldgroupColours;
+  private Scrollbar slider = new Scrollbar(Scrollbar.HORIZONTAL);
 
+  private TextField thresholdValue = new TextField(20);
 
-  boolean adjusting = false;
-  private float min,max;
-  String type=null;
-  
-  public FeatureColourChooser(FeatureSettings fsettings, String type)
+  private Checkbox thresholdIsMin = new Checkbox();
+
+  private Checkbox colourFromLabel = new Checkbox();
+
+  private GraphLine threshline;
+
+  /**
+   * Constructor given a context AlignFrame and a feature type. This is used
+   * when opening the graduated colour dialog from the Amend Feature dialog.
+   * 
+   * @param alignFrame
+   * @param featureType
+   */
+  public FeatureColourChooser(AlignFrame alignFrame, String featureType)
+  {
+    this.af = alignFrame;
+    init(alignFrame.getSeqcanvas().getFeatureRenderer(), featureType);
+  }
+
+  /**
+   * Constructor given a context FeatureSettings and a feature type. This is
+   * used when opening the graduated colour dialog from Feature Settings.
+   * 
+   * @param fsettings
+   * @param featureType
+   */
+  public FeatureColourChooser(FeatureSettings fsettings, String featureType)
   {
     this.fs = fsettings;
-    this.type = type;
-    fr = fsettings.fr;
-    ap = fsettings.ap;
-    float mm[] = ((float[][]) fr.minmax.get(type))[0];
+    init(fsettings.fr, featureType);
+  }
+
+  private void init(FeatureRenderer frenderer, String featureType)
+  {
+    this.type = featureType;
+    fr = frenderer;
+    float mm[] = fr.getMinMax().get(type)[0];
     min = mm[0];
     max = mm[1];
-    oldcs = fr.featureColours.get(type);
-    if (oldcs instanceof GraduatedColor)
+    threshline = new GraphLine((max - min) / 2f, "Threshold", Color.black);
+    oldcs = fr.getFeatureColours().get(type);
+    if (oldcs.isGraduatedColour())
+    {
+      threshline.value = oldcs.getThreshold();
+      cs = new FeatureColour(oldcs.getColour(), oldcs.getMinColour(),
+              oldcs.getMaxColour(), oldcs.getNoColour(), min, max);
+    }
+    else
     {
-      cs = new GraduatedColor((GraduatedColor) oldcs, min, max);
-    } else {
       // promote original color to a graduated color
       Color bl = Color.black;
-      if (oldcs instanceof Color)
+      if (oldcs.isSimpleColour())
       {
-        bl = (Color) oldcs;
+        bl = oldcs.getColour();
       }
       // original colour becomes the maximum colour
-      cs = new GraduatedColor(Color.white,bl,mm[0],mm[1]);
+      cs = new FeatureColour(bl, Color.white, bl, Color.white, mm[0],
+              mm[1]);
     }
-    minColour.setBackground(cs.getMinColor());
-    maxColour.setBackground(cs.getMaxColor());
+    minColour.setBackground(cs.getMinColour());
+    maxColour.setBackground(cs.getMaxColour());
+    minColour.setForeground(cs.getMinColour());
+    maxColour.setForeground(cs.getMaxColour());
+    colourFromLabel.setState(cs.isColourByLabel());
     adjusting = true;
 
     try
@@ -79,16 +162,31 @@ public class FeatureColourChooser extends Panel implements
     } catch (Exception ex)
     {
     }
-    // To HERE!
+    threshold.select(
+            cs.isAboveThreshold() ? 1 : (cs.isBelowThreshold() ? 2 : 0));
+
     adjusting = false;
-    changeColour();
+    changeColour(true);
+    colourFromLabel.addItemListener(this);
     slider.addAdjustmentListener(this);
     slider.addMouseListener(this);
-    frame = new Frame();
-    frame.add(this);
-    jalview.bin.JalviewLite.addFrame(frame, "Graduated Feature Colour for "+type, 480,
-            145);
+    owner = (af != null) ? af : fs.frame;
+    frame = new JVDialog(owner, MessageManager
+            .formatMessage("label.variable_color_for", new String[]
+            { type }), true, 480, 248);
+    frame.setMainPanel(this);
     validate();
+    frame.setVisible(true);
+    if (frame.accept)
+    {
+      changeColour(true);
+    }
+    else
+    {
+      // cancel
+      reset();
+      frame.setVisible(false);
+    }
   }
 
   public FeatureColourChooser()
@@ -104,103 +202,93 @@ public class FeatureColourChooser extends Panel implements
 
   private void jbInit() throws Exception
   {
-    minColour.setFont(new java.awt.Font("Verdana", Font.PLAIN, 11));
-    minColour.setLabel("Min Colour");
-    minColour.addActionListener(this);
+    Label minLabel = new Label(
+            MessageManager.getString("label.min_value") + COLON);
+    Label maxLabel = new Label(
+            MessageManager.getString("label.max_value") + COLON);
+    minLabel.setFont(new java.awt.Font("Verdana", Font.PLAIN, 11));
+    maxLabel.setFont(new java.awt.Font("Verdana", Font.PLAIN, 11));
+    // minColour.setFont(new java.awt.Font("Verdana", Font.PLAIN, 11));
+    // minColour.setLabel("Min Colour");
+
+    minColour.setBounds(0, 0, 40, 27);
+    maxColour.setBounds(0, 0, 40, 27);
+    minColour.addMouseListener(this);
 
     maxColour.setFont(new java.awt.Font("Verdana", Font.PLAIN, 11));
-    maxColour.setLabel("Max Colour");
-    maxColour.addActionListener(this);
+    maxColour.addMouseListener(this);
 
     thresholdIsMin.addItemListener(this);
-    ok.setLabel("OK");
-    ok.addActionListener(this);
-
-    cancel.setLabel("Cancel");
-    cancel.addActionListener(this);
-
-    this.setLayout(borderLayout1);
-    jPanel2.setLayout(flowLayout1);
 
+    this.setLayout(new GridLayout(4, 1));
+    Panel jPanel1 = new Panel();
+    jPanel1.setLayout(new FlowLayout());
+    Panel jPanel2 = new Panel();
+    jPanel2.setLayout(new FlowLayout());
+    Panel jPanel3 = new Panel();
+    jPanel3.setLayout(new GridLayout(1, 1));
+    Panel jPanel4 = new Panel();
+    jPanel4.setLayout(new FlowLayout());
     jPanel1.setBackground(Color.white);
     jPanel2.setBackground(Color.white);
+    jPanel4.setBackground(Color.white);
     threshold.addItemListener(this);
-    threshold.addItem("No Threshold");
-    threshold.addItem("Above Threshold");
-    threshold.addItem("Below Threshold");
-    jPanel3.setLayout(null);
+    threshold.addItem(MessageManager
+            .getString("label.threshold_feature_no_threshold"));
+    threshold.addItem(MessageManager
+            .getString("label.threshold_feature_above_threshold"));
+    threshold.addItem(MessageManager
+            .getString("label.threshold_feature_below_threshold"));
     thresholdValue.addActionListener(this);
-
+    thresholdValue.addFocusListener(new FocusAdapter()
+    {
+      @Override
+      public void focusLost(FocusEvent e)
+      {
+        thresholdValue_actionPerformed();
+      }
+    });
     slider.setBackground(Color.white);
     slider.setEnabled(false);
-    slider.setBounds(new Rectangle(153, 3, 93, 21));
+    slider.setSize(new Dimension(93, 21));
     thresholdValue.setEnabled(false);
-    thresholdValue.setBounds(new Rectangle(248, 2, 79, 22));
+    thresholdValue.setSize(new Dimension(79, 22)); // setBounds(new
+                                                   // Rectangle(248, 2, 79,
+                                                   // 22));
     thresholdValue.setColumns(5);
     jPanel3.setBackground(Color.white);
-    //currentColours.setFont(new java.awt.Font("Verdana", Font.PLAIN, 11));
-    //currentColours.setLabel("Use Original Colours");
-    //currentColours.addItemListener(this);
 
-    threshold.setBounds(new Rectangle(11, 3, 139, 22));
+    colourFromLabel.setFont(new java.awt.Font("Verdana", Font.PLAIN, 11));
+    colourFromLabel
+            .setLabel(MessageManager.getString("label.colour_by_label"));
+    colourFromLabel.setSize(new Dimension(139, 22));
+    // threshold.setBounds(new Rectangle(11, 3, 139, 22));
     thresholdIsMin.setBackground(Color.white);
-    thresholdIsMin.setLabel("Threshold is min/max");
-    thresholdIsMin.setBounds(new Rectangle(328, 3, 135, 23));
-    jPanel1.add(ok);
-    jPanel1.add(cancel);
-    //jPanel2.add(currentColours);
-    jPanel2.add(minColour);
-    jPanel2.add(maxColour);
-    jPanel3.add(threshold);
+    thresholdIsMin
+            .setLabel(MessageManager.getString("label.threshold_minmax"));
+    thresholdIsMin.setSize(new Dimension(135, 23));
+    // thresholdIsMin.setBounds(new Rectangle(328, 3, 135, 23));
+    jPanel1.add(minLabel);
+    jPanel1.add(minColour);
+    jPanel1.add(maxLabel);
+    jPanel1.add(maxColour);
+    jPanel1.add(colourFromLabel);
+    jPanel2.add(threshold);
     jPanel3.add(slider);
-    jPanel3.add(thresholdValue);
-    jPanel3.add(thresholdIsMin);
-    this.add(jPanel2, java.awt.BorderLayout.NORTH);
-    this.add(jPanel3, java.awt.BorderLayout.CENTER);
-    this.add(jPanel1, java.awt.BorderLayout.SOUTH);
+    jPanel4.add(thresholdValue);
+    jPanel4.add(thresholdIsMin);
+    this.add(jPanel1);// , java.awt.BorderLayout.NORTH);
+    this.add(jPanel2);// , java.awt.BorderLayout.NORTH);
+    this.add(jPanel3);// , java.awt.BorderLayout.CENTER);
+    this.add(jPanel4);// , java.awt.BorderLayout.CENTER);
   }
 
-  Button minColour = new Button();
-
-  Button maxColour = new Button();
-
-  Button ok = new Button();
-
-  Button cancel = new Button();
-
-  Panel jPanel1 = new Panel();
-
-  Panel jPanel2 = new Panel();
-
-  Choice threshold = new Choice();
-
-  FlowLayout flowLayout1 = new FlowLayout();
-
-  Panel jPanel3 = new Panel();
-
-  Scrollbar slider = new Scrollbar(Scrollbar.HORIZONTAL);
-
-  TextField thresholdValue = new TextField(20);
-
-
-  BorderLayout borderLayout1 = new BorderLayout();
-
-  Checkbox thresholdIsMin = new Checkbox();
-
-  private GraphLine threshline;
-
+  @Override
   public void actionPerformed(ActionEvent evt)
   {
     if (evt.getSource() == thresholdValue)
     {
-      try
-      {
-        float f = new Float(thresholdValue.getText()).floatValue();
-        slider.setValue((int) (f * 1000));
-        adjustmentValueChanged(null);
-      } catch (NumberFormatException ex)
-      {
-      }
+      thresholdValue_actionPerformed();
     }
     else if (evt.getSource() == minColour)
     {
@@ -210,74 +298,102 @@ public class FeatureColourChooser extends Panel implements
     {
       maxColour_actionPerformed(null);
     }
-
-    else if (evt.getSource() == ok)
-    {
-      changeColour();
-      frame.setVisible(false);
-    }
-    else if (evt.getSource() == cancel)
+    else
     {
-      reset();
-      ap.paintAlignment(true);
-      frame.setVisible(false);
+      changeColour(true);
     }
+  }
 
-    else
+  /**
+   * Action on input of a value for colour score threshold
+   */
+  protected void thresholdValue_actionPerformed()
+  {
+    try
+    {
+      float f = Float.valueOf(thresholdValue.getText()).floatValue();
+      slider.setValue((int) (f * SCALE_FACTOR_1K));
+      adjustmentValueChanged(null);
+
+      /*
+       * force repaint of any Overview window or structure
+       */
+      changeColour(true);
+    } catch (NumberFormatException ex)
     {
-      changeColour();
     }
   }
 
+  @Override
   public void itemStateChanged(ItemEvent evt)
   {
-
-    changeColour();
+    maxColour.setEnabled(!colourFromLabel.getState());
+    minColour.setEnabled(!colourFromLabel.getState());
+    changeColour(true);
   }
 
+  /**
+   * Handler called when the value of the threshold slider changes, either by
+   * user action or programmatically
+   */
+  @Override
   public void adjustmentValueChanged(AdjustmentEvent evt)
   {
     if (!adjusting)
     {
-      thresholdValue.setText(((float) slider.getValue() / 1000f) + "");
+      thresholdValue.setText((slider.getValue() / 1000f) + "");
       valueChanged();
     }
   }
-  protected void valueChanged() {
-    changeColour();
-    threshline.value = (float) slider.getValue() / 1000f;
-    ap.paintAlignment(false);
+
+  /**
+   * Responds to a change of colour threshold by computing the absolute value
+   * and refreshing the alignment.
+   */
+  protected void valueChanged()
+  {
+    threshline.value = slider.getValue() / 1000f;
+    cs.setThreshold(threshline.value);
+    changeColour(false);
+    PaintRefresher.Refresh(this, fr.getViewport().getSequenceSetId());
   }
+
   public void minColour_actionPerformed(Color newCol)
   {
-    if (newCol != null)
+    if (newCol == null)
     {
-      minColour.setBackground(newCol);
-      minColour.repaint();
-      changeColour();
+      new UserDefinedColours(this, minColour.getBackground(), owner,
+              MessageManager
+                      .getString("label.select_colour_minimum_value"));
     }
     else
     {
-      new UserDefinedColours(this, "Select Colour for Minimum Value", minColour.getBackground());
+      minColour.setBackground(newCol);
+      minColour.setForeground(newCol);
+      minColour.repaint();
+      changeColour(true);
     }
 
   }
 
   public void maxColour_actionPerformed(Color newCol)
   {
-    if (newCol != null)
+    if (newCol == null)
     {
-      maxColour.setBackground(newCol);
-      maxColour.repaint();
-      changeColour();
+      new UserDefinedColours(this, maxColour.getBackground(), owner,
+              MessageManager
+                      .getString("label.select_colour_maximum_value"));
     }
     else
     {
-      new UserDefinedColours(this, "Select Colour for Maximum Value", maxColour.getBackground());
+      maxColour.setBackground(newCol);
+      maxColour.setForeground(newCol);
+      maxColour.repaint();
+      changeColour(true);
     }
   }
 
-  void changeColour()
+  void changeColour(boolean updateOverview)
   {
     // Check if combobox is still adjusting
     if (adjusting)
@@ -285,93 +401,113 @@ public class FeatureColourChooser extends Panel implements
       return;
     }
 
-    int aboveThreshold = AnnotationColourGradient.NO_THRESHOLD;
-    if (threshold.getSelectedItem().equals("Above Threshold"))
+    int thresholdOption = AnnotationColourGradient.NO_THRESHOLD;
+    if (threshold.getSelectedIndex() == 1)
     {
-      aboveThreshold = AnnotationColourGradient.ABOVE_THRESHOLD;
+      thresholdOption = AnnotationColourGradient.ABOVE_THRESHOLD;
     }
-    else if (threshold.getSelectedItem().equals("Below Threshold"))
+    else if (threshold.getSelectedIndex() == 2)
     {
-      aboveThreshold = AnnotationColourGradient.BELOW_THRESHOLD;
+      thresholdOption = AnnotationColourGradient.BELOW_THRESHOLD;
     }
 
     slider.setEnabled(true);
     thresholdValue.setEnabled(true);
-    GraduatedColor acg = new GraduatedColor(minColour.getBackground(), maxColour.getBackground(), min, max);
-
-    if (aboveThreshold == AnnotationColourGradient.NO_THRESHOLD)
+    Color minc = minColour.getBackground();
+    Color maxc = maxColour.getBackground();
+    FeatureColour acg = new FeatureColour(maxc, minc, maxc, minc, min, max);
+
+    acg.setColourByLabel(colourFromLabel.getState());
+    maxColour.setEnabled(!colourFromLabel.getState());
+    minColour.setEnabled(!colourFromLabel.getState());
+    if (thresholdOption == AnnotationColourGradient.NO_THRESHOLD)
     {
       slider.setEnabled(false);
       thresholdValue.setEnabled(false);
       thresholdValue.setText("");
     }
-    
-    else if (aboveThreshold != AnnotationColourGradient.NO_THRESHOLD
-            && threshline == null)
-    {
-      // todo visual indication of feature threshold
-      threshline = new jalview.datamodel.GraphLine(
-                      (max - min) / 2f,
-                      "Threshold", Color.black);
-    }
 
-    if (aboveThreshold != AnnotationColourGradient.NO_THRESHOLD)
+    if (thresholdOption != AnnotationColourGradient.NO_THRESHOLD)
     {
       adjusting = true;
-      acg.setThresh(threshline.value);
-
-      float range = max * 1000f
-              - min * 1000f;
+      acg.setThreshold(threshline.value);
 
-      slider.setMinimum((int) (min * 1000));
-      slider.setMaximum((int) (max * 1000));
-      slider.setValue((int) (threshline.value * 1000));
+      slider.setMinimum((int) (min * SCALE_FACTOR_1K));
+      slider.setMaximum((int) (max * SCALE_FACTOR_1K));
+      slider.setValue((int) (threshline.value * SCALE_FACTOR_1K));
       thresholdValue.setText(threshline.value + "");
       slider.setEnabled(true);
       thresholdValue.setEnabled(true);
       adjusting = false;
     }
 
-    acg.setThreshType(aboveThreshold);
-    if (thresholdIsMin.getState() && aboveThreshold != AnnotationColourGradient.NO_THRESHOLD)
+    acg.setAboveThreshold(
+            thresholdOption == AnnotationColourGradient.ABOVE_THRESHOLD);
+    acg.setBelowThreshold(
+            thresholdOption == AnnotationColourGradient.BELOW_THRESHOLD);
+
+    if (thresholdIsMin.getState()
+            && thresholdOption != AnnotationColourGradient.NO_THRESHOLD)
     {
-      if (aboveThreshold==AnnotationColourGradient.ABOVE_THRESHOLD)
-      { 
-        acg = new GraduatedColor(acg, threshline.value, max);
-      } else { 
-        acg = new GraduatedColor(acg, min,threshline.value);
+      if (thresholdOption == AnnotationColourGradient.ABOVE_THRESHOLD)
+      {
+        acg = new FeatureColour(acg.getColour(), acg.getMinColour(),
+                acg.getMaxColour(), acg.getNoColour(), threshline.value,
+                max);
+      }
+      else
+      {
+        acg = new FeatureColour(acg.getColour(), acg.getMinColour(),
+                acg.getMaxColour(), acg.getNoColour(), min,
+                threshline.value);
       }
     }
-    
-    fr.featureColours.put(type,acg);
+
+    fr.setColour(type, acg);
     cs = acg;
-    ap.paintAlignment(false);
+    fs.selectionChanged(updateOverview);
   }
 
   void reset()
   {
-    fr.featureColours.put(type, oldcs);
-    ap.paintAlignment(true);
-
+    fr.setColour(type, oldcs);
+    fs.selectionChanged(true);
   }
 
+  @Override
   public void mouseClicked(MouseEvent evt)
   {
   }
 
+  @Override
   public void mousePressed(MouseEvent evt)
   {
   }
 
+  @Override
   public void mouseReleased(MouseEvent evt)
   {
-    ap.paintAlignment(true);
+    if (evt.getSource() == minColour)
+    {
+      minColour_actionPerformed(null);
+    }
+    else if (evt.getSource() == maxColour)
+    {
+      maxColour_actionPerformed(null);
+    }
+    else
+    {
+      changeColour(true);
+      // PaintRefresher.Refresh(this, fr.getViewport().getSequenceSetId());
+    }
   }
 
+  @Override
   public void mouseEntered(MouseEvent evt)
   {
   }
 
+  @Override
   public void mouseExited(MouseEvent evt)
   {
   }