TrakEM2_/src/main/java/ini/trakem2/display/DefaultMode.java

   1 package ini.trakem2.display;
   2
   3 import ini.trakem2.display.graphics.DefaultGraphicsSource;
   4 import ini.trakem2.display.graphics.GraphicsSource;
   5
   6 import java.awt.Rectangle;
   7 import java.awt.event.MouseEvent;
   8 import java.util.Collection;
   9
  10 public class DefaultMode implements Mode {
  11
  12         final private DefaultGraphicsSource gs = new DefaultGraphicsSource();
  13         final private Display display;
  14
  15         public DefaultMode(final Display display) {
  16                 this.display = display;
  17         }
  18
  19         public GraphicsSource getGraphicsSource() {
  20                 return gs;
  21         }
  22
  23         public boolean canChangeLayer() { return true; }
  24         public boolean canZoom() { return true; }
  25         public boolean canPan() { return true; }
  26
  27         private boolean dragging = false;
  28
  29         public boolean isDragging() {
  30                 return dragging;
  31         }
  32
  33         public void mousePressed(MouseEvent me, int x_p, int y_p, double magnification) {
  34                 final Collection<Displayable> sel = display.getSelection().getSelected();
  35                 dragging = false; //reset
  36                 for (final Displayable d : sel) {
  37                         if (d.contains(x_p, y_p)) {
  38                                 dragging = true;
  39                                 break;
  40                         }
  41                 }
  42                 final Collection<Displayable> affected = display.getSelection().getAffected();
  43                 if (display.getLayerSet().prepareStep(affected)) {
  44                         display.getLayerSet().addTransformStep(affected);
  45                 }
  46         }
  47         public void mouseDragged(MouseEvent me, int x_p, int y_p, int x_d, int y_d, int x_d_old, int y_d_old) {
  48                 int dx = x_d - x_d_old;
  49                 int dy = y_d - y_d_old;
  50
  51                 if (dragging) execDrag(me, dx, dy);
  52         }
  53         private void execDrag(MouseEvent me, int dx, int dy) {
  54                 if (0 == dx && 0 == dy) return;
  55                 // drag all selected and linked
  56                 display.getSelection().translate(dx, dy);
  57         }
  58         public void mouseReleased(MouseEvent me, int x_p, int y_p, int x_d, int y_d, int x_r, int y_r) {
  59                 // Record current state for selected Displayable set, if there was any change:
  60                 final int dx = x_r - x_p;
  61                 final int dy = y_r - y_p;
  62                 if (0 != dx || 0 != dy) {
  63                         display.getLayerSet().addTransformStep(display.getSelection().getAffected()); // all selected and their links: i.e. all that will change
  64                 }
  65
  66                 dragging = false;
  67         }
  68
  69         public void undoOneStep() {
  70                 display.getLayerSet().undoOneStep();
  71                 Display.repaint(display.getLayerSet());
  72         }
  73
  74         public void redoOneStep() {
  75                 display.getLayerSet().redoOneStep();
  76                 Display.repaint(display.getLayerSet());
  77         }
  78
  79         public boolean apply() { return true; } // already done
  80         public boolean cancel() { return true; } // nothing to cancel
  81
  82         public Rectangle getRepaintBounds() {
  83                 return display.getSelection().getLinkedBox();
  84         }
  85
  86         public void srcRectUpdated(Rectangle srcRect, double magnification) {}
  87         public void magnificationUpdated(Rectangle srcRect, double magnification) {}
  88 }