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 boolean selected = false;
  15         public final GUIWire parent;
  16
  17         private int pointIndex;
  18
  19         public WirePointHandle(GUIWire parent, int pointIndex)
  20         {
  21                 super();
  22                 this.parent = parent;
  23                 this.pointIndex = pointIndex;
  24                 setSize(END_OFFSET, END_OFFSET);
  25                 Point pathPoint = parent.getPathPoint(pointIndex);
  26                 moveTo(pathPoint.x, pathPoint.y);
  27         }
  28
  29         void updatePos()
  30         {
  31                 Point p = parent.getPathPoint(pointIndex);
  32                 moveTo(p.x, p.y);
  33         }
  34
  35         @Override
  36         public void render(GeneralGC gc)
  37         {
  38                 gc.setLineWidth(1.0);
  39                 gc.setForeground(Display.getDefault().getSystemColor(selected ? SWT.COLOR_YELLOW : SWT.COLOR_BLUE));
  40                 gc.drawLine(getPosX(), getPosY(), getPosX() + END_OFFSET, getPosY() + END_OFFSET);
  41         }
  42
  43         @Override
  44         public void reqMove(double x, double y)
  45         {
  46                 parent.setPathPoint(new Point(x, y), pointIndex);
  47         }
  48
  49         @Override
  50         public void onSelect()
  51         {
  52                 selected = true;
  53                 callRedrawListeners();
  54         }
  55
  56         @Override
  57         public void onDeselect()
  58         {
  59                 selected = false;
  60                 callRedrawListeners();
  61         }
  62
  63         @Override
  64         public void reqDelete()
  65         {
  66                 parent.removePathPoint(pointIndex);
  67         }
  68
  69         @Override
  70         public HandleType getType()
  71         {
  72                 return HandleType.WIRE_POINT;
  73         }
  74
  75         /**
  76          * Sets the index of the {@link Point} within the parent {@link Wire}s path that is controlled by this handle
  77          * @param index Index of the Point in the Wires path.
  78          * @throws IndexOutOfBoundsException
  79          */
  80         public void setIndex(int index)
  81         {
  82                 this.pointIndex = index;
  83                 updatePos();
  84         }
  85 }