ini/trakem2/display/LayerPanel.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 import ij.IJ;
  26 import ini.trakem2.utils.Utils;
  27
  28 import javax.swing.BoxLayout;
  29 import javax.swing.BorderFactory;
  30 import javax.swing.JLabel;
  31 import javax.swing.JSlider;
  32 import javax.swing.JPanel;
  33 import javax.swing.JPopupMenu;
  34 import javax.swing.JMenuItem;
  35 import javax.swing.event.ChangeEvent;
  36 import javax.swing.event.ChangeListener;
  37 import java.awt.Event;
  38 import java.awt.event.ActionEvent;
  39 import java.awt.event.ActionListener;
  40 import java.awt.event.MouseListener;
  41 import java.awt.event.MouseEvent;
  42 import java.awt.Color;
  43 import java.awt.Graphics;
  44 import java.awt.Dimension;
  45
  46
  47 public final class LayerPanel extends JPanel implements MouseListener {
  48
  49         private final JLabel title;
  50         private final JSlider slider = new JSlider(javax.swing.SwingConstants.HORIZONTAL, 0, 100, 0);
  51         private Color color = Color.white;
  52         private float alpha = 0.0f; // for overlays
  53
  54         private final Display display;
  55         protected final Layer layer;
  56
  57         public LayerPanel(final Display display, final Layer layer) {
  58                 this.display = display;
  59                 this.layer = layer;
  60
  61                 this.slider.addChangeListener(new ChangeListener() {
  62                         public void stateChanged(final ChangeEvent ce) {
  63                                 final float a = slider.getValue() / 100.0f;
  64                                 setAlpha(a);
  65                                 display.storeLayerAlpha(LayerPanel.this, a);
  66                                 display.repaint();
  67                         }
  68                 });
  69
  70                 this.title = new JLabel(makeTitle());
  71                 this.title.addMouseListener(this);
  72
  73                 setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
  74                 add(title);
  75                 add(slider);
  76
  77                 final Dimension dim = new Dimension(250 - Display.scrollbar_width, DisplayablePanel.HEIGHT);
  78                 setMinimumSize(dim);
  79                 setMaximumSize(dim);
  80                 //setPreferredSize(dim);
  81
  82                 addMouseListener(this);
  83                 setBackground(this.color);
  84                 setBorder(BorderFactory.createLineBorder(Color.black));
  85         }
  86
  87         private final String makeTitle() {
  88                 return new StringBuffer().append(layer.getParent().indexOf(layer) + 1).append(':').append(' ').append(layer.getTitle()).toString();
  89         }
  90
  91         public final void setColor(final Color color) {
  92                 this.color = color;
  93                 setBackground(color);
  94                 slider.setBackground(color);
  95                 if (Color.white == color) {
  96                         title.setForeground(Color.black);
  97                 } else {
  98                         title.setForeground(Color.white);
  99                 }
 100                 repaint();
 101         }
 102
 103         public final Color getColor() { return color; }
 104
 105         public final void setAlpha(final float alpha) {
 106                 if (alpha < 0 || alpha > 1) return;
 107                 this.alpha = alpha;
 108                 slider.setValue((int)(alpha * 100));
 109         }
 110
 111         public final float getAlpha() { return alpha; }
 112
 113         public final void paint(final Graphics g) {
 114                 title.setText(makeTitle());
 115                 if (display.getLayer() == layer) {
 116                         setBackground(Color.green);
 117                         slider.setBackground(Color.green);
 118                 } else {
 119                         setBackground(color);
 120                         slider.setBackground(color);
 121                 }
 122                 super.paint(g);
 123         }
 124
 125         public void mousePressed(final MouseEvent me) {
 126                 if (Utils.isPopupTrigger(me)) {
 127                         JPopupMenu popup = new JPopupMenu();
 128                         JMenuItem item = new JMenuItem("Reset layer coloring");
 129                         item.addActionListener(new ActionListener() {
 130                                 public void actionPerformed(ActionEvent ae) {
 131                                         display.resetLayerColors();
 132                                 }
 133                         });
 134                         popup.add(item);
 135                         item = new JMenuItem("Reset all layer alphas");
 136                         item.addActionListener(new ActionListener() {
 137                                 public void actionPerformed(ActionEvent ae) {
 138                                         display.resetLayerAlphas();
 139                                 }
 140                         });
 141                         popup.add(item);
 142                         popup.show(this, me.getX(), me.getY());
 143                         return;
 144                 }
 145
 146                 final int mod = me.getModifiers();
 147                 Utils.log2("mouse pressed : " + mod);
 148                 if (0 == (mod & Event.ALT_MASK) && 0 == (mod & Event.SHIFT_MASK)) {
 149                         // Would mess up translation of red/blue colors when scrolling
 150                         /*
 151                         display.toLayer(this.layer);
 152                         setColor(Color.white);
 153                         display.setColorChannel(this.layer, this.color);
 154                         repaint();
 155                         */
 156                 } else if (display.getLayer() == this.layer) {
 157                         // do nothing
 158                 } else if (0 != (mod & Event.ALT_MASK)) {
 159                         if (this.color == Color.blue) {
 160                                 // unset
 161                                 setColor(Color.white);
 162                         } else {
 163                                 // set as blue channel
 164                                 setColor(Color.blue);
 165                         }
 166                 } else if (0 != (mod & Event.SHIFT_MASK)) {
 167                         if (this.color == Color.red) {
 168                                 // unset
 169                                 setColor(Color.white);
 170                         } else {
 171                                 // set as red channel
 172                                 setColor(Color.red);
 173                         }
 174                 }
 175                 display.setColorChannel(this.layer, this.color);
 176         }
 177
 178         public void mouseReleased(MouseEvent me) {}
 179         public void mouseEntered(MouseEvent me) {}
 180         public void mouseExited (MouseEvent me) {}
 181         public void mouseClicked(MouseEvent me) {}
 182
 183         public final String toString() {
 184                 return "Layer panel for " + layer.getTitle();
 185         }
 186 }