net.mograsim.logic.ui/src/net/mograsim/logic/ui/model/components/GUIBitDisplay.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.LogicObserver;
  10 import net.mograsim.logic.core.components.BitDisplay;
  11 import net.mograsim.logic.core.types.BitVectorFormatter;
  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.BitDisplayAdapter;
  16 import net.mograsim.preferences.Preferences;
  17
  18 public class GUIBitDisplay extends GUIComponent
  19 {
  20         private static final double width = 20;
  21         private static final double height = 15;
  22         private static final double fontHeight = 5;
  23
  24         private final Pin inputPin;
  25
  26         private final LogicObserver logicObs;
  27         private BitDisplay bitDisplay;
  28
  29         public GUIBitDisplay(ViewModelModifiable model)
  30         {
  31                 super(model);
  32                 logicObs = (i) -> requestRedraw();
  33
  34                 setSize(width, height);
  35                 addPin(this.inputPin = new Pin(this, "", 1, 0, height / 2));
  36         }
  37
  38         @Override
  39         public void render(GeneralGC gc, Rectangle visibleRegion)
  40         {
  41                 Color foreground = Preferences.current().getColor("net.mograsim.logic.ui.color.foreground");
  42                 if (foreground != null)
  43                         gc.setForeground(foreground);
  44                 gc.drawRectangle(getBounds());
  45                 String label = bitDisplay == null ? BitVectorFormatter.formatAsString(null)
  46                                 : BitVectorFormatter.formatAsString(bitDisplay.getDisplayedValue());
  47                 Font oldFont = gc.getFont();
  48                 Font labelFont = new Font(oldFont.getName(), fontHeight, oldFont.getStyle());
  49                 gc.setFont(labelFont);
  50                 Point textExtent = gc.textExtent(label);
  51                 Color textColor = Preferences.current().getColor("net.mograsim.logic.ui.color.text");
  52                 if (textColor != null)
  53                         gc.setForeground(textColor);
  54                 gc.drawText(label, getPosX() + (width - textExtent.x) / 2, getPosY() + (height - textExtent.y) / 2, true);
  55                 gc.setFont(oldFont);
  56         }
  57
  58         public void setLogicModelBinding(BitDisplay bitDisplay)
  59         {
  60                 if (this.bitDisplay != null)
  61                         this.bitDisplay.deregisterObserver(logicObs);
  62                 this.bitDisplay = bitDisplay;
  63                 if (bitDisplay != null)
  64                         bitDisplay.registerObserver(logicObs);
  65         }
  66
  67         public boolean hasLogicModelBinding()
  68         {
  69                 return bitDisplay != null;
  70         }
  71
  72         public BitDisplay getBitDisplay()
  73         {
  74                 return bitDisplay;
  75         }
  76
  77         public Pin getInputPin()
  78         {
  79                 return inputPin;
  80         }
  81
  82         static
  83         {
  84                 ViewLogicModelAdapter.addComponentAdapter(new BitDisplayAdapter());
  85         }
  86 }