LogicUI/src/era/mi/gui/wires/GUIWire.java

   1 package era.mi.gui.wires;\r
   2 \r
   3 import java.util.Objects;\r
   4 \r
   5 import org.eclipse.swt.SWT;\r
   6 import org.eclipse.swt.graphics.Color;\r
   7 \r
   8 import era.mi.gui.components.BasicGUIComponent;\r
   9 import era.mi.logic.Bit;\r
  10 import era.mi.logic.wires.WireArray;\r
  11 import net.haspamelodica.swt.helper.gcs.GeneralGC;\r
  12 import net.haspamelodica.swt.helper.swtobjectwrappers.Point;\r
  13 \r
  14 public class GUIWire\r
  15 {\r
  16         private final WireArray wa;\r
  17         private final double[] path;\r
  18 \r
  19         public GUIWire(Runnable redraw, BasicGUIComponent component1, int component1ConnectionIndex, Point component1Pos,\r
  20                         BasicGUIComponent component2, int component2ConnectionIndex, Point component2Pos, Point... path)\r
  21         {\r
  22                 this.wa = component1.getConnectedWireArray(component1ConnectionIndex);\r
  23                 if (!Objects.equals(wa, component2.getConnectedWireArray(component2ConnectionIndex)))\r
  24                         throw new IllegalArgumentException("Given connection points are not connected!");\r
  25                 this.path = new double[path.length * 2 + 4];\r
  26                 Point component1ConnectionPoint = component1.getWireArrayConnectionPoint(component1ConnectionIndex);\r
  27                 this.path[0] = component1Pos.x + component1ConnectionPoint.x;\r
  28                 this.path[1] = component1Pos.y + component1ConnectionPoint.y;\r
  29                 for (int srcI = 0, dstI = 2; srcI < path.length; srcI++, dstI += 2)\r
  30                 {\r
  31                         this.path[dstI + 0] = path[srcI].x;\r
  32                         this.path[dstI + 1] = path[srcI].y;\r
  33                 }\r
  34                 Point component2ConnectionPoint = component2.getWireArrayConnectionPoint(component2ConnectionIndex);\r
  35                 this.path[this.path.length - 2] = component2Pos.x + component2ConnectionPoint.x;\r
  36                 this.path[this.path.length - 1] = component2Pos.y + component2ConnectionPoint.y;\r
  37 \r
  38                 wa.addObserver((initiator, oldValues) -> redraw.run());\r
  39         }\r
  40 \r
  41         public void render(GeneralGC gc)\r
  42         {\r
  43                 Color oldFG = gc.getForeground();\r
  44                 if (wa.length == 1)\r
  45                         gc.setForeground(gc.getDevice().getSystemColor(getSWTColorConstantForBit(wa.getValue())));\r
  46                 gc.drawPolyline(path);\r
  47                 gc.setForeground(oldFG);\r
  48         }\r
  49 \r
  50         public static int getSWTColorConstantForBit(Bit bit)\r
  51         {\r
  52                 switch (bit)\r
  53                 {\r
  54                 case ONE:\r
  55                         return SWT.COLOR_GREEN;\r
  56                 case ZERO:\r
  57                         return SWT.COLOR_BLUE;\r
  58                 case Z:\r
  59                         return SWT.COLOR_BLACK;\r
  60                 case U:\r
  61                 case X:\r
  62                         return SWT.COLOR_RED;\r
  63                 default:\r
  64                         throw new IllegalArgumentException("Unknown enum constant: " + bit);\r
  65                 }\r
  66         }\r
  67 }