ini/trakem2/display/Channel.java

   1 /**
   2
   3 TrakEM2 plugin for ImageJ(C).
   4 Copyright (C) 2005,2006 Albert Cardona and Rodney Douglas.
   5
   6 This program is free software; you can redistribute it and/or
   7 modify it under the terms of the GNU General Public License
   8 as published by the Free Software Foundation (http://www.gnu.org/licenses/gpl.txt )
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 You may contact Albert Cardona at acardona at ini.phys.ethz.ch
  20 Institute of Neuroinformatics, University of Zurich / ETH, Switzerland.
  21 **/
  22
  23 package ini.trakem2.display;
  24
  25
  26 import javax.swing.*;
  27 import java.awt.event.*;
  28 import java.awt.Color;
  29 import java.awt.Dimension;
  30
  31
  32 public class Channel extends JPanel implements ItemListener, MouseListener {
  33
  34         static public final int HEIGHT = 52;
  35
  36         private JCheckBox c;
  37         private JLabel title;
  38
  39         private Display display;
  40
  41         static public final int MONO = 1;
  42         static public final int RED  = 2;
  43         static public final int GREEN= 4;
  44         static public final int BLUE = 8;
  45         private int channel;
  46         private float alpha = 1.0f;
  47
  48         Channel(Display display, int channel) {
  49                 this.display = display;
  50                 this.channel = channel;
  51                 this.c = new JCheckBox();
  52                 this.c.setSelected(true);
  53                 this.c.addItemListener(this);
  54                 String t = "mono";
  55                 switch (channel) {
  56                         case RED: t = "red"; break;
  57                         case GREEN: t = "green"; break;
  58                         case BLUE: t = "blue"; break;
  59                         default: t = "mono"; break;
  60                 }
  61                 JLabel title = new DisplayableTitleLabel("   " + t);
  62                 title.addMouseListener(this);
  63                 setLayout(new BoxLayout(this, BoxLayout.X_AXIS));
  64                 add(c);
  65                 add(title);
  66
  67                 Dimension dim = new Dimension(250, HEIGHT);
  68                 setMinimumSize(dim);
  69                 setMaximumSize(dim);
  70
  71                 addMouseListener(this);
  72                 setBackground(Color.white);
  73                 setBorder(BorderFactory.createLineBorder(Color.black));
  74         }
  75
  76         /** For reconstructing purposes. */
  77         public void setAlpha(float alpha, boolean selected) {
  78                 if (alpha != this.alpha && alpha >= 0.0f && alpha <= 1.0f) {
  79                         this.alpha = alpha;
  80                 }
  81                 c.setSelected(selected);
  82         }
  83
  84         public void setAlpha(float alpha) {
  85                 if (alpha != this.alpha && alpha >= 0.0f && alpha <= 1.0f) {
  86                         this.alpha = alpha;
  87                         display.setChannel(channel, alpha);
  88                 }
  89         }
  90
  91         public float getAlpha() { return alpha; }
  92
  93         public void itemStateChanged(ItemEvent ie) {
  94                 Object source = ie.getSource();
  95                 if (source.equals(c)) {
  96                         if (ie.getStateChange() == ItemEvent.SELECTED) {
  97                                 display.setChannel(channel, alpha);
  98                         } else if (ie.getStateChange() == ItemEvent.DESELECTED) {
  99                                 display.setChannel(channel, 0.0f);
 100                         }
 101                 }
 102         }
 103
 104         public boolean isSelected() {
 105                 return c.isSelected();
 106         }
 107
 108         public void setActive(boolean active) {
 109                 if (active) {
 110                         setBackground(Color.cyan);
 111                 } else {
 112                         setBackground(Color.white);
 113                 }
 114         }
 115
 116         public boolean isActive() {
 117                 return getBackground().equals(Color.cyan);
 118         }
 119
 120         public void setSelected (boolean s) {
 121                 c.setSelected(s);
 122         }
 123
 124         public void mousePressed(MouseEvent me) {
 125                 display.setActiveChannel(this);
 126         }
 127
 128         public void mouseReleased(MouseEvent me) {}
 129         public void mouseEntered(MouseEvent me) {}
 130         public void mouseExited (MouseEvent me) {}
 131         public void mouseClicked(MouseEvent me) {}
 132 }