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

   1 package net.mograsim.logic.ui.model.components;
   2
   3 import org.eclipse.swt.graphics.Color;
   4
   5 import net.haspamelodica.swt.helper.gcs.GeneralGC;
   6 import net.haspamelodica.swt.helper.swtobjectwrappers.Font;
   7 import net.haspamelodica.swt.helper.swtobjectwrappers.Point;
   8 import net.haspamelodica.swt.helper.swtobjectwrappers.Rectangle;
   9 import net.mograsim.logic.core.LogicObservable;
  10 import net.mograsim.logic.core.LogicObserver;
  11 import net.mograsim.logic.core.components.ManualSwitch;
  12 import net.mograsim.logic.core.types.Bit;
  13 import net.mograsim.logic.core.types.BitVectorFormatter;
  14 import net.mograsim.logic.core.wires.Wire.ReadEnd;
  15 import net.mograsim.logic.ui.model.ViewModelModifiable;
  16 import net.mograsim.logic.ui.model.wires.Pin;
  17 import net.mograsim.logic.ui.modeladapter.ViewLogicModelAdapter;
  18 import net.mograsim.logic.ui.modeladapter.componentadapters.ManualSwitchAdapter;
  19 import net.mograsim.preferences.Preferences;
  20
  21 public class GUIManualSwitch extends GUIComponent
  22 {
  23         private static final double width = 20;
  24         private static final double height = 15;
  25         private static final double fontHeight = 5;
  26
  27         private final Pin outputPin;
  28
  29         private final LogicObserver logicObs;
  30         private ManualSwitch logicSwitch;
  31         private ReadEnd end;
  32
  33         public GUIManualSwitch(ViewModelModifiable model)
  34         {
  35                 super(model);
  36                 logicObs = (i) -> requestRedraw();
  37
  38                 setSize(width, height);
  39                 addPin(this.outputPin = new Pin(this, "", 1, width, height / 2));
  40         }
  41
  42         @Override
  43         public void render(GeneralGC gc, Rectangle visibleRegion)
  44         {
  45                 // TODO maybe draw switch state too?
  46                 Color foreground = Preferences.current().getColor("net.mograsim.logic.ui.color.foreground");
  47                 if (foreground != null)
  48                         gc.setForeground(foreground);
  49                 gc.drawRectangle(getBounds());
  50                 String label = BitVectorFormatter.formatValueAsString(end);
  51                 Font oldFont = gc.getFont();
  52                 Font labelFont = new Font(oldFont.getName(), fontHeight, oldFont.getStyle());
  53                 gc.setFont(labelFont);
  54                 Point textExtent = gc.textExtent(label);
  55                 Color textColor = Preferences.current().getColor("net.mograsim.logic.ui.color.text");
  56                 if (textColor != null)
  57                         gc.setForeground(textColor);
  58                 gc.drawText(label, getPosX() + (width - textExtent.x) / 2, getPosY() + (height - textExtent.y) / 2, true);
  59                 gc.setFont(oldFont);
  60         }
  61
  62         public void setLogicModelBinding(ManualSwitch logicSwitch, ReadEnd end)
  63         {
  64                 deregisterLogicObs(this.end);
  65                 deregisterLogicObs(this.logicSwitch);
  66                 this.logicSwitch = logicSwitch;
  67                 this.end = end;
  68                 registerLogicObs(end);
  69                 registerLogicObs(logicSwitch);
  70         }
  71
  72         public boolean hasLogicModelBinding()
  73         {
  74                 return logicSwitch != null;
  75         }
  76
  77         @Override
  78         public void setHighLevelState(String stateID, Object newState)
  79         {
  80                 if ("out".equals(stateID))
  81                 {
  82                         if (logicSwitch != null)
  83                                 logicSwitch.setToValueOf((Bit) newState);
  84                 } else
  85                         super.setHighLevelState(stateID, newState);
  86         }
  87
  88         private void registerLogicObs(LogicObservable observable)
  89         {
  90                 if (observable != null)
  91                         observable.registerObserver(logicObs);
  92         }
  93
  94         private void deregisterLogicObs(LogicObservable observable)
  95         {
  96                 if (observable != null)
  97                         observable.deregisterObserver(logicObs);
  98         }
  99
 100         @Override
 101         public boolean clicked(double x, double y)
 102         {
 103                 if (logicSwitch != null)
 104                         logicSwitch.toggle();
 105                 return true;
 106         }
 107
 108         public ManualSwitch getManualSwitch()
 109         {
 110                 return logicSwitch;
 111         }
 112
 113         public Pin getOutputPin()
 114         {
 115                 return outputPin;
 116         }
 117
 118         static
 119         {
 120                 ViewLogicModelAdapter.addComponentAdapter(new ManualSwitchAdapter());
 121         }
 122 }