Initial quantum circuit.

plugins/quantum_computing/src/visuals/QuantumTerminalNode.cpp

@@ -0,0 +1,53 @@
+#include "QuantumTerminalNode.h"
+
+#include "QuantumTerminal.h"
+#include "EquationNode.h"
+#include "LatexMathExpression.h"
+
+QuantumTerminalNode::QuantumTerminalNode(const Transform& transform)
+	: AbstractVisualNode(transform)
+{
+
+}
+
+void QuantumTerminalNode::setContent(QuantumTerminal* terminal)
+{
+	mContent = terminal;
+	mContentDirty = true;
+}
+
+void QuantumTerminalNode::update(SceneInfo* sceneInfo)
+{
+	if (mContentDirty)
+	{
+		createOrUpdateGeometry(sceneInfo);
+		mContentDirty = false;
+	}
+}
+
+void QuantumTerminalNode::createOrUpdateGeometry(SceneInfo* sceneInfo)
+{
+	if (!mLabel)
+	{
+		const auto value = mContent->getValue();
+		std::string label;
+		if (value.isIn0State())
+		{
+			label = "\\ket{0}";
+		}
+		else if(value.isIn1State())
+		{
+			label = "\\ket{1}";
+		}
+		else
+		{
+			label = "\\Psi";
+		}
+
+		mLabelExpression = std::make_unique<LatexMathExpression>(label);
+		mLabel = std::make_unique<EquationNode>();
+		mLabel->setContent(mLabelExpression.get());
+
+		addChild(mLabel.get());
+	}
+}