X-Git-Url: https://mograsim.net/gitweb/?a=blobdiff_plain;f=net.mograsim.logic.ui%2Fsrc%2Fnet%2Fmograsim%2Flogic%2Fui%2Fmodel%2Fcomponents%2FGUIBitDisplay.java;fp=net.mograsim.logic.ui%2Fsrc%2Fnet%2Fmograsim%2Flogic%2Fui%2Fmodel%2Fcomponents%2FGUIBitDisplay.java;h=4a75f541b5d3c14836a543c4645c84a35b8b3d7d;hb=41d70703ef1579e85a0965bd1e09cac4b47d52c1;hp=0000000000000000000000000000000000000000;hpb=10a471c1a0bdc5fbab0372db340ca3b0c0ec9d11;p=Mograsim.git

diff --git a/net.mograsim.logic.ui/src/net/mograsim/logic/ui/model/components/GUIBitDisplay.java b/net.mograsim.logic.ui/src/net/mograsim/logic/ui/model/components/GUIBitDisplay.java
new file mode 100644
index 00000000..4a75f541
--- /dev/null
+++ b/net.mograsim.logic.ui/src/net/mograsim/logic/ui/model/components/GUIBitDisplay.java
@@ -0,0 +1,75 @@
+package net.mograsim.logic.ui.model.components;
+
+import net.haspamelodica.swt.helper.gcs.GeneralGC;
+import net.haspamelodica.swt.helper.swtobjectwrappers.Font;
+import net.haspamelodica.swt.helper.swtobjectwrappers.Point;
+import net.haspamelodica.swt.helper.swtobjectwrappers.Rectangle;
+import net.mograsim.logic.core.LogicObservable;
+import net.mograsim.logic.core.LogicObserver;
+import net.mograsim.logic.core.components.BitDisplay;
+import net.mograsim.logic.core.types.BitVectorFormatter;
+import net.mograsim.logic.ui.model.ViewModel;
+import net.mograsim.logic.ui.model.wires.Pin;
+
+public class GUIBitDisplay extends GUIComponent
+{
+	private static final double width = 20;
+	private static final double height = 15;
+	private static final double fontHeight = 5;
+
+	private final Pin inputPin;
+
+	private final LogicObserver logicObs;
+	private BitDisplay bitDisplay;
+
+	public GUIBitDisplay(ViewModel model)
+	{
+		super(model);
+		logicObs = (i) -> callComponentLookChangedListeners();
+
+		setSize(width, height);
+		addPin(this.inputPin = new Pin(this, 1, 0, height / 2));
+	}
+
+	@Override
+	public void render(GeneralGC gc, Rectangle visibleRegion)
+	{
+		double posX = getBounds().x;
+		double posY = getBounds().y;
+
+		// TODO maybe draw switch state too?
+		gc.drawRectangle(posX, posY, width, height);
+		String label = bitDisplay == null ? BitVectorFormatter.formatAsString(null)
+				: BitVectorFormatter.formatAsString(bitDisplay.getDisplayedValue());
+		Font oldFont = gc.getFont();
+		Font labelFont = new Font(oldFont.getName(), fontHeight, oldFont.getStyle());
+		gc.setFont(labelFont);
+		Point textExtent = gc.textExtent(label);
+		gc.drawText(label, posX + (width - textExtent.x) / 2, posY + (height - textExtent.y) / 2, true);
+		gc.setFont(oldFont);
+	}
+
+	public void setLogicModelBinding(BitDisplay bitDisplay)
+	{
+		deregisterLogicObs(this.bitDisplay);
+		this.bitDisplay = bitDisplay;
+		registerLogicObs(bitDisplay);
+	}
+
+	private void registerLogicObs(LogicObservable observable)
+	{
+		if (observable != null)
+			observable.registerObserver(logicObs);
+	}
+
+	private void deregisterLogicObs(LogicObservable observable)
+	{
+		if (observable != null)
+			observable.deregisterObserver(logicObs);
+	}
+
+	public Pin getInputPin()
+	{
+		return inputPin;
+	}
+}
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