TrakEM2_/src/main/java/ini/trakem2/display/d3d/ControlClickBehavior.java

   1 package ini.trakem2.display.d3d;
   2
   3 import java.awt.event.MouseEvent;
   4
   5 import org.scijava.vecmath.Point3d;
   6
   7 import ij.measure.Calibration;
   8 import ij3d.Content;
   9 import ij3d.Image3DUniverse;
  10 import ij3d.behaviors.InteractiveBehavior;
  11 import ij3d.behaviors.Picker;
  12 import ini.trakem2.display.Coordinate;
  13 import ini.trakem2.display.Display;
  14 import ini.trakem2.display.Layer;
  15 import ini.trakem2.display.LayerSet;
  16 import ini.trakem2.utils.Utils;
  17
  18 /** A class to provide the behavior on control-clicking on
  19 content in the 3D viewer.  This will attempt to center
  20 the front TrakEM2 Display on the clicked point */
  21 public class ControlClickBehavior extends InteractiveBehavior {
  22
  23         protected Image3DUniverse universe;
  24         protected LayerSet ls;
  25
  26         public ControlClickBehavior(final Image3DUniverse univ, final LayerSet ls) {
  27                 super(univ);
  28                 this.universe = univ;
  29                 this.ls = ls;
  30         }
  31
  32         @Override
  33         public void doProcess(final MouseEvent e) {
  34                 if(!e.isControlDown() ||
  35                                 e.getID() != MouseEvent.MOUSE_PRESSED) {
  36                         super.doProcess(e);
  37                         return;
  38                 }
  39                 final Picker picker = universe.getPicker();
  40                 final Content content = picker.getPickedContent(e.getX(),e.getY());
  41                 if(content==null)
  42                         return;
  43                 final Point3d p = picker.getPickPointGeometry(content,e);
  44                 if(p==null) {
  45                         Utils.log("No point was found on content "+content);
  46                         return;
  47                 }
  48                 final Display display = Display.getFront(ls.getProject());
  49                 if(display==null) {
  50                         // If there's no Display, just return...
  51                         return;
  52                 }
  53                 if (display.getLayerSet() != ls) {
  54                         Utils.log("The LayerSet instances do not match");
  55                         return;
  56                 }
  57                 if(ls==null) {
  58                         Utils.log("No LayerSet was found for the Display");
  59                         return;
  60                 }
  61                 final Calibration cal = ls.getCalibration();
  62                 if(cal==null) {
  63                         Utils.log("No calibration information was found for the LayerSet");
  64                         return;
  65                 }
  66                 final double scaledZ = p.z/cal.pixelWidth;
  67                 final Layer l = ls.getNearestLayer(scaledZ);
  68                 if(l==null) {
  69                         Utils.log("No layer was found nearest to "+scaledZ);
  70                         return;
  71                 }
  72                 final Coordinate<?> coordinate = new Coordinate<Object>(p.x/cal.pixelWidth,p.y/cal.pixelHeight,l,null);
  73                 display.center(coordinate);
  74         }
  75 }