net.mograsim.logic.model.editor/src/net/mograsim/logic/model/editor/handles/WirePointHandle.java

   1 package net.mograsim.logic.model.editor.handles;
   2
   3 import org.eclipse.swt.SWT;
   4 import org.eclipse.swt.widgets.Display;
   5
   6 import net.haspamelodica.swt.helper.gcs.GeneralGC;
   7 import net.haspamelodica.swt.helper.swtobjectwrappers.Point;
   8 import net.mograsim.logic.core.wires.CoreWire;
   9 import net.mograsim.logic.model.model.wires.ModelWire;
  10
  11 public class WirePointHandle extends Handle
  12 {
  13         private final static int END_OFFSET = 4;
  14         private final HandleManager manager;
  15         private boolean selected = false;
  16         public final ModelWire parent;
  17
  18         private int pointIndex;
  19
  20         public WirePointHandle(HandleManager manager, ModelWire parent, int pointIndex)
  21         {
  22                 super(3);
  23                 this.manager = manager;
  24                 this.parent = parent;
  25                 this.pointIndex = pointIndex;
  26                 setSize(END_OFFSET, END_OFFSET);
  27                 Point pathPoint = parent.getPathPoint(pointIndex);
  28                 moveTo(pathPoint.x, pathPoint.y);
  29         }
  30
  31         void updatePos()
  32         {
  33                 Point p = parent.getPathPoint(pointIndex);
  34                 moveTo(p.x, p.y);
  35                 callRedrawListeners();
  36         }
  37
  38         @Override
  39         public void render(GeneralGC gc)
  40         {
  41                 gc.setLineWidth(1.0);
  42                 gc.setForeground(Display.getDefault().getSystemColor(selected ? SWT.COLOR_YELLOW : SWT.COLOR_BLUE));
  43                 gc.drawLine(getPosX(), getPosY(), getPosX() + END_OFFSET, getPosY() + END_OFFSET);
  44         }
  45
  46         @Override
  47         public void reqMove(double x, double y)
  48         {
  49                 parent.setPathPoint(new Point(x, y), pointIndex);
  50         }
  51
  52         @Override
  53         public void onSelect()
  54         {
  55                 selected = true;
  56                 callRedrawListeners();
  57         }
  58
  59         @Override
  60         public void onDeselect()
  61         {
  62                 selected = false;
  63                 callRedrawListeners();
  64         }
  65
  66         @Override
  67         public void reqDelete()
  68         {
  69                 manager.destroyWirePointHandle(parent, this);
  70         }
  71
  72         @Override
  73         public HandleType getType()
  74         {
  75                 return HandleType.WIRE_POINT;
  76         }
  77
  78         /**
  79          * Sets the index of the {@link Point} within the parent {@link CoreWire}s path that is controlled by this handle
  80          *
  81          * @param index Index of the Point in the Wires path.
  82          * @throws IndexOutOfBoundsException
  83          */
  84         public void setIndex(int index)
  85         {
  86                 this.pointIndex = index;
  87                 updatePos();
  88         }
  89 }