net.mograsim.logic.ui/src/net/mograsim/logic/ui/model/components/GUIManualSwitch.java

   1 package net.mograsim.logic.ui.model.components;
   2
   3 import net.haspamelodica.swt.helper.gcs.GeneralGC;
   4 import net.haspamelodica.swt.helper.swtobjectwrappers.Font;
   5 import net.haspamelodica.swt.helper.swtobjectwrappers.Point;
   6 import net.haspamelodica.swt.helper.swtobjectwrappers.Rectangle;
   7 import net.mograsim.logic.core.LogicObservable;
   8 import net.mograsim.logic.core.LogicObserver;
   9 import net.mograsim.logic.core.components.ManualSwitch;
  10 import net.mograsim.logic.core.types.BitVectorFormatter;
  11 import net.mograsim.logic.core.wires.Wire.ReadEnd;
  12 import net.mograsim.logic.ui.model.ViewModelModifiable;
  13 import net.mograsim.logic.ui.model.wires.Pin;
  14 import net.mograsim.logic.ui.modeladapter.ViewLogicModelAdapter;
  15 import net.mograsim.logic.ui.modeladapter.componentadapters.ManualSwitchAdapter;
  16
  17 public class GUIManualSwitch extends GUIComponent
  18 {
  19         private static final double width = 20;
  20         private static final double height = 15;
  21         private static final double fontHeight = 5;
  22
  23         private final Pin outputPin;
  24
  25         private final LogicObserver logicObs;
  26         private ManualSwitch logicSwitch;
  27         private ReadEnd end;
  28
  29         public GUIManualSwitch(ViewModelModifiable model)
  30         {
  31                 super(model);
  32                 logicObs = (i) -> requestRedraw();
  33
  34                 setSize(width, height);
  35                 addPin(this.outputPin = new Pin(this, "", 1, width, height / 2));
  36         }
  37
  38         @Override
  39         public void render(GeneralGC gc, Rectangle visibleRegion)
  40         {
  41                 // TODO maybe draw switch state too?
  42                 gc.drawRectangle(getBounds());
  43                 String label = BitVectorFormatter.formatValueAsString(end);
  44                 Font oldFont = gc.getFont();
  45                 Font labelFont = new Font(oldFont.getName(), fontHeight, oldFont.getStyle());
  46                 gc.setFont(labelFont);
  47                 Point textExtent = gc.textExtent(label);
  48                 gc.drawText(label, getPosX() + (width - textExtent.x) / 2, getPosY() + (height - textExtent.y) / 2, true);
  49                 gc.setFont(oldFont);
  50         }
  51
  52         public void setLogicModelBinding(ManualSwitch logicSwitch, ReadEnd end)
  53         {
  54                 deregisterLogicObs(this.end);
  55                 deregisterLogicObs(this.logicSwitch);
  56                 this.logicSwitch = logicSwitch;
  57                 this.end = end;
  58                 registerLogicObs(end);
  59                 registerLogicObs(logicSwitch);
  60         }
  61
  62         private void registerLogicObs(LogicObservable observable)
  63         {
  64                 if (observable != null)
  65                         observable.registerObserver(logicObs);
  66         }
  67
  68         private void deregisterLogicObs(LogicObservable observable)
  69         {
  70                 if (observable != null)
  71                         observable.deregisterObserver(logicObs);
  72         }
  73
  74         @Override
  75         public boolean clicked(double x, double y)
  76         {
  77                 if (logicSwitch != null)
  78                         logicSwitch.toggle();
  79                 return true;
  80         }
  81
  82         public ManualSwitch getManualSwitch()
  83         {
  84                 return logicSwitch;
  85         }
  86
  87         public Pin getOutputPin()
  88         {
  89                 return outputPin;
  90         }
  91
  92         static
  93         {
  94                 ViewLogicModelAdapter.addComponentAdapter(new ManualSwitchAdapter());
  95         }
  96 }