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.Wire;
   9 import net.mograsim.logic.model.model.wires.GUIWire;
  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 GUIWire parent;
  17
  18         private int pointIndex;
  19
  20         public WirePointHandle(HandleManager manager, GUIWire parent, int pointIndex)
  21         {
  22                 super();
  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         }
  36
  37         @Override
  38         public void render(GeneralGC gc)
  39         {
  40                 gc.setLineWidth(1.0);
  41                 gc.setForeground(Display.getDefault().getSystemColor(selected ? SWT.COLOR_YELLOW : SWT.COLOR_BLUE));
  42                 gc.drawLine(getPosX(), getPosY(), getPosX() + END_OFFSET, getPosY() + END_OFFSET);
  43         }
  44
  45         @Override
  46         public void reqMove(double x, double y)
  47         {
  48                 parent.setPathPoint(new Point(x, y), pointIndex);
  49         }
  50
  51         @Override
  52         public void onSelect()
  53         {
  54                 selected = true;
  55                 callRedrawListeners();
  56         }
  57
  58         @Override
  59         public void onDeselect()
  60         {
  61                 selected = false;
  62                 callRedrawListeners();
  63         }
  64
  65         @Override
  66         public void reqDelete()
  67         {
  68                 manager.destroyWirePointHandle(parent, this);
  69         }
  70
  71         @Override
  72         public HandleType getType()
  73         {
  74                 return HandleType.WIRE_POINT;
  75         }
  76
  77         /**
  78          * Sets the index of the {@link Point} within the parent {@link Wire}s path that is controlled by this handle
  79          *
  80          * @param index Index of the Point in the Wires path.
  81          * @throws IndexOutOfBoundsException
  82          */
  83         public void setIndex(int index)
  84         {
  85                 this.pointIndex = index;
  86                 updatePos();
  87         }
  88 }