Add wiring

plugins/quantum_computing/src/CMakeLists.txt

@@ -14,6 +14,7 @@ list(APPEND HEADERS
 	BasicQuantumGates.h
 	visuals/BlochSphereNode.h
 	visuals/QuantumCircuitNode.h
+	visuals/QuantumCircuitElementNode.h
 	visuals/QuantumGateNode.h
 	visuals/QuantumWireNode.h
 	visuals/QuantumTerminalNode.h
@@ -33,6 +34,7 @@ list(APPEND SOURCES
 	BasicQuantumGates.cpp
 	visuals/BlochSphereNode.cpp
 	visuals/QuantumCircuitNode.cpp
+	visuals/QuantumCircuitElementNode.cpp
 	visuals/QuantumGateNode.cpp
 	visuals/QuantumWireNode.cpp
 	visuals/QuantumTerminalNode.cpp

plugins/quantum_computing/src/QuantumCircuit.cpp

@@ -2,6 +2,8 @@
 
 #include "QuantumGate.h"
 
+#include "FileLogger.h"
+
 void QuantumCircuit::addInputTerminal(QuantumTerminalPtr terminal)
 {
 	mInputTerminals.push_back(terminal.get());
@@ -44,4 +46,89 @@ const std::vector<QuantumGate*>& QuantumCircuit::getLogicGates() const
 const std::vector<QuantumWire*>& QuantumCircuit::getQuantumWires() const
 {
 	return mWires;
+}
+
+void QuantumCircuit::buildWireConnections()
+{
+	for (const auto& wire : mWires)
+	{
+		bool input_set{ false };
+		bool output_set{ false };
+
+		for (auto input : mInputTerminals)
+		{
+			if (wire->getInput() == input)
+			{
+				input->setConnection(wire);
+				input_set = true;
+				break;
+			}
+		}
+
+		for (auto output : mOutputTerminals)
+		{
+			if (wire->getOutput() == output)
+			{
+				output->setConnection(wire);
+				output_set = true;
+				break;
+			}
+		}
+
+		if (input_set && output_set)
+		{
+			break;
+		}
+
+		for (auto gate : mGates)
+		{
+			if (wire->getOutput() == gate)
+			{
+				for (std::size_t idx = 0; idx < gate->getNumInputs(); idx++)
+				{
+					if (gate->getInput(idx) == nullptr)
+					{
+						gate->setAtInput(idx, wire);
+						output_set = true;
+						break;
+					}
+				}
+			}
+
+			if (wire->getInput() == gate)
+			{
+				for (std::size_t idx = 0; idx < gate->getNumOutputs(); idx++)
+				{
+					if (gate->getOutput(idx) == nullptr)
+					{
+						gate->setAtOutput(idx, wire);
+						input_set = true;
+						break;
+					}
+				}
+			}
+
+			if (input_set && output_set)
+			{
+				break;
+			}
+		}
+	}
+
+	if (!connectivityIsValid())
+	{
+		MLOG_ERROR("Input circuit does not have complete connectivity");
+	}
+}
+
+bool QuantumCircuit::connectivityIsValid() const
+{
+	for (const auto& element : mElements)
+	{
+		if (!element->isFullyConnected())
+		{
+			return false;
+		}
+	}
+	return true;
 }

plugins/quantum_computing/src/QuantumCircuit.h

@@ -18,6 +18,8 @@ public:
 
 	void addLogicGate(QuantumGatePtr gate);
 
+	void buildWireConnections();
+
 	const std::vector<QuantumTerminal*>& getInputTerminals() const;
 
 	const std::vector<QuantumTerminal*>& getOutputTerminals() const;
@@ -27,6 +29,8 @@ public:
 	const std::vector<QuantumWire*>& getQuantumWires() const;
 
 private:
+	bool connectivityIsValid() const;
+
 	std::vector<QuantumTerminal*> mInputTerminals;
 	std::vector<QuantumTerminal*> mOutputTerminals;
 

plugins/quantum_computing/src/QuantumCircuitElement.h

@@ -16,5 +16,7 @@ public:
 
     virtual ~QuantumCircuitElement() = default;
 
+    virtual bool isFullyConnected() const = 0;
+
     virtual QuantumCircuitElement::Type getType() const = 0;
 };

plugins/quantum_computing/src/QuantumCircuitReader.cpp

@@ -27,6 +27,7 @@ std::unique_ptr<QuantumCircuit> QuantumCircuitReader::read(const std::string& co
 		onLine(line, cursor);
 		cursor++;
 	}
+	circuit->buildWireConnections();
 	return circuit;
 }
 

plugins/quantum_computing/src/QuantumGate.h

@@ -3,6 +3,7 @@
 #include "QuantumCircuitElement.h"
 
 #include "QuantumWire.h"
+
 #include <vector>
 
 class QuantumGate : public QuantumCircuitElement
@@ -27,6 +28,10 @@ public:
 
     virtual AbstractQuantumWire* getOutput(std::size_t idx) const = 0;
 
+    virtual void setAtInput(std::size_t idx, AbstractQuantumWire* value) = 0;
+
+    virtual void setAtOutput(std::size_t idx, AbstractQuantumWire* value) = 0;
+
     virtual GateType getGateType() const = 0;
 
     Type getType() const override
@@ -52,9 +57,29 @@ public:
 
     AbstractQuantumWire* getOutput(std::size_t idx) const override;
 
-    void setAtInput(std::size_t idx, AbstractQuantumWire* value);
+    void setAtInput(std::size_t idx, AbstractQuantumWire* value) override;
 
-    void setAtOutput(std::size_t idx, AbstractQuantumWire* value);
+    void setAtOutput(std::size_t idx, AbstractQuantumWire* value) override;
+
+    bool isFullyConnected() const override
+    {
+        for (const auto input : mInputs)
+        {
+            if (input == nullptr)
+            {
+                return false;
+            }
+        }
+
+        for (const auto output : mOutputs)
+        {
+            if (output == nullptr)
+            {
+                return false;
+            }
+        }
+        return true;
+    }
 
 private:
     std::size_t mNumIn{ 1 };

plugins/quantum_computing/src/QuantumTerminal.h

@@ -23,6 +23,16 @@ public:
 
     Type getType() const override;
 
+    TerminalType getTerminalType() const
+    {
+        return mType;
+    }
+
+    bool isFullyConnected() const override
+    {
+        return mConnection;
+    }
+
     const Qubit& getValue() const;
 
     void setConnection(QuantumWire* connection);

plugins/quantum_computing/src/QuantumWire.cpp

@@ -1,12 +1,18 @@
 #include "QuantumWire.h"
 
-QuantumWire::QuantumWire(QuantumCircuitElement* input, QuantumCircuitElement* output)
+AbstractQuantumWire::AbstractQuantumWire(QuantumCircuitElement* input, QuantumCircuitElement* output)
     : mInput(input),
     mOutput(output)
 {
 
 }
 
+QuantumWire::QuantumWire(QuantumCircuitElement* input, QuantumCircuitElement* output)
+    : AbstractQuantumWire(input, output)
+{
+
+}
+
 QuantumCircuitElement* QuantumWire::getInput() const
 {
     return mInput;

plugins/quantum_computing/src/QuantumWire.h

@@ -11,9 +11,20 @@ public:
         CLASSICAL
     };
 
+    AbstractQuantumWire(QuantumCircuitElement* input, QuantumCircuitElement* output);
+
     virtual ~AbstractQuantumWire() = default;
 
     virtual WireType getWireType() const = 0;
+
+    bool isFullyConnected() const override
+    {
+        return mInput && mOutput;
+    }
+
+protected:
+    QuantumCircuitElement* mInput{ nullptr };
+    QuantumCircuitElement* mOutput{ nullptr };
 };
 
 class QuantumWire : public AbstractQuantumWire
@@ -26,9 +37,6 @@ public:
 
     Type getType() const override;
     WireType getWireType() const override;
-private:
-    QuantumCircuitElement* mInput{ nullptr };
-    QuantumCircuitElement* mOutput{ nullptr };
 };
 using QuantumWirePtr = std::unique_ptr<QuantumWire>;
 

plugins/quantum_computing/src/visuals/QuantumCircuitElementNode.cpp

@@ -0,0 +1,12 @@
+#include "QuantumCircuitElementNode.h"
+
+QuantumCircuitElementNode::QuantumCircuitElementNode(const Transform& t)
+	: AbstractVisualNode(t)
+{
+
+}
+
+QuantumCircuitElementNode::~QuantumCircuitElementNode()
+{
+
+}

plugins/quantum_computing/src/visuals/QuantumCircuitElementNode.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include "AbstractVisualNode.h"
+
+#include "QuantumWire.h"
+
+class QuantumCircuitElementNode : public AbstractVisualNode
+{
+public:
+	QuantumCircuitElementNode(const Transform& t = {});
+
+	virtual ~QuantumCircuitElementNode();
+
+	virtual Point getConnectionLocation(AbstractQuantumWire* wire) const = 0;
+};

plugins/quantum_computing/src/visuals/QuantumCircuitNode.cpp

@@ -1,9 +1,16 @@
 #include "QuantumCircuitNode.h"
 
 #include "QuantumCircuit.h"
+#include "QuantumCircuitElement.h"
+#include "QuantumWire.h"
+
+#include "QuantumCircuitElementNode.h"
 #include "QuantumTerminalNode.h"
+#include "QuantumWireNode.h"
+#include "QuantumGateNode.h"
 
 QuantumCircuitNode::QuantumCircuitNode(const Transform& t)
+    : AbstractVisualNode(t)
 {
 
 }
@@ -23,9 +30,40 @@ void QuantumCircuitNode::update(SceneInfo* sceneInfo)
     }
 }
 
+void QuantumCircuitNode::buildWireConnections()
+{
+    mWireInputConnections.clear();
+    mWireOutputConnections.clear();
+
+    for (auto terminal : mContent->getInputTerminals())
+    {
+        mWireOutputConnections[terminal->getConnection()] = terminal;
+    }
+
+    for (auto gate : mContent->getLogicGates())
+    {
+        for (std::size_t idx = 0; idx < gate->getNumInputs(); idx++)
+        {
+            mWireInputConnections[gate->getInput(idx)] = gate;
+        }
+
+        for (std::size_t idx = 0; idx < gate->getNumOutputs(); idx++)
+        {
+            mWireOutputConnections[gate->getOutput(idx)] = gate;
+        }
+    }
+
+    for (auto terminal : mContent->getOutputTerminals())
+    {
+        mWireInputConnections[terminal->getConnection()] = terminal;
+    }
+}
+
 void QuantumCircuitNode::createOrUpdateGeometry(SceneInfo*)
 {
-    double terminal_vertical_spacing = 100;
+    buildWireConnections();
+
+    double wire_vertical_spacing = 50;
     double terminal_left_margin = 10;
 
     double terminal_y = 10;
@@ -37,8 +75,56 @@ void QuantumCircuitNode::createOrUpdateGeometry(SceneInfo*)
         terminal_node->setContent(terminal);
 
         addChild(terminal_node.get());
+        mNodesForContent[terminal] = terminal_node.get();
 
         mInputTerminalNodes.push_back(std::move(terminal_node));
-        terminal_y += terminal_vertical_spacing;
+        terminal_y += wire_vertical_spacing;
+    }
+
+    terminal_y = 10;
+    for (auto terminal : mContent->getOutputTerminals())
+    {
+        Point loc{ 150.0, terminal_y };
+        auto terminal_node = std::make_unique<QuantumTerminalNode>(Transform(loc));
+
+        terminal_node->setContent(terminal);
+
+        addChild(terminal_node.get());
+        mNodesForContent[terminal] = terminal_node.get();
+
+        mOutputTerminalNodes.push_back(std::move(terminal_node));
+        terminal_y += wire_vertical_spacing;
+    }
+
+    double gate_y = 0;
+    for (auto gate : mContent->getLogicGates())
+    {
+        Point loc{ 75.0, gate_y };
+        auto gate_node = std::make_unique<QuantumGateNode>(Transform(loc));
+        gate_node->setContent(gate);
+
+        addChild(gate_node.get());
+        mNodesForContent[gate] = gate_node.get();
+
+        mGateNodes.push_back(std::move(gate_node));
+        gate_y += wire_vertical_spacing;
+    }
+
+    for (auto wire : mContent->getQuantumWires())
+    {
+        auto start_node = mNodesForContent[mWireOutputConnections[wire]];
+        auto end_node = mNodesForContent[mWireInputConnections[wire]];
+
+        auto wire_node = std::make_unique<QuantumWireNode>(Transform());
+        auto start_loc = start_node->getConnectionLocation(wire);
+        wire_node->setInputLocation(start_loc);
+
+        auto end_loc = end_node->getConnectionLocation(wire);
+        auto straight_end_loc = Point(end_loc.getX(), start_loc.getY());
+        wire_node->setOutputLocation(straight_end_loc);
+
+        addChild(wire_node.get());
+
+        mWireNodes.push_back(std::move(wire_node));
     }
 }

plugins/quantum_computing/src/visuals/QuantumCircuitNode.h

@@ -2,8 +2,16 @@
 
 #include "AbstractVisualNode.h"
 
+#include <unordered_map>
+
 class QuantumCircuit;
+class QuantumCircuitElement;
+class AbstractQuantumWire;
+
 class QuantumTerminalNode;
+class QuantumGateNode;
+class QuantumWireNode;
+class QuantumCircuitElementNode;
 
 class QuantumCircuitNode : public AbstractVisualNode
 {
@@ -16,8 +24,18 @@ public:
 private:
 	void createOrUpdateGeometry(SceneInfo* sceneInfo);
 
+	void buildWireConnections();
+
 	bool mContentDirty{ true };
 	QuantumCircuit* mContent{ nullptr };
 
 	std::vector<std::unique_ptr<QuantumTerminalNode> > mInputTerminalNodes;
+	std::vector<std::unique_ptr<QuantumTerminalNode> > mOutputTerminalNodes;
+	std::vector<std::unique_ptr<QuantumGateNode> > mGateNodes;
+	std::vector<std::unique_ptr<QuantumWireNode> > mWireNodes;
+
+	std::unordered_map<AbstractQuantumWire*, QuantumCircuitElement*> mWireInputConnections;
+	std::unordered_map<AbstractQuantumWire*, QuantumCircuitElement*> mWireOutputConnections;
+
+	std::unordered_map<QuantumCircuitElement*, QuantumCircuitElementNode*> mNodesForContent;
 };

plugins/quantum_computing/src/visuals/QuantumGateNode.cpp

@@ -0,0 +1,111 @@
+#include "QuantumGateNode.h"
+
+#include "RectangleNode.h"
+#include "EquationNode.h"
+#include "QuantumGate.h"
+
+#include "LatexMathExpression.h"
+
+QuantumGateNode::QuantumGateNode(const Transform& t)
+	: QuantumCircuitElementNode(t)
+{
+
+}
+
+QuantumGateNode::~QuantumGateNode()
+{
+
+}
+
+void QuantumGateNode::setContent(QuantumGate* gate)
+{
+	mContent = gate;
+	mContentDirty = true;
+}
+
+void QuantumGateNode::update(SceneInfo* sceneInfo)
+{
+	if (mContentDirty)
+	{
+		createOrUpdateGeometry(sceneInfo);
+		mContentDirty = false;
+	}
+}
+
+void QuantumGateNode::createOrUpdateGeometry(SceneInfo* sceneInfo) 
+{
+	if (!mBody)
+	{
+		mBody = std::make_unique<RectangleNode>(Point(0, 0), mBodyWidth, mBodyHeight);
+		addChild(mBody.get());
+	}
+
+	if (!mLabel)
+	{
+		mLabel = std::make_unique<EquationNode>(Point(mBodyWidth /3.0, mBodyHeight / 3.0));
+
+		std::string label_content;
+		if (mContent->getGateType() == QuantumGate::GateType::X)
+		{
+			label_content = "X";
+		}
+		else if (mContent->getGateType() == QuantumGate::GateType::Y)
+		{
+			label_content = "Y";
+		}
+		else if (mContent->getGateType() == QuantumGate::GateType::Z)
+		{
+			label_content = "Z";
+		}
+		else if (mContent->getGateType() == QuantumGate::GateType::H)
+		{
+			label_content = "H";
+		}
+		else
+		{
+			label_content = "U";
+		}
+
+		mLabelExpression = std::make_unique<LatexMathExpression>(label_content);
+		mLabel->setContent(mLabelExpression.get());
+		addChild(mLabel.get());
+	}
+}
+
+Point QuantumGateNode::getConnectionLocation(AbstractQuantumWire* wire) const
+{
+	bool is_input{ false };
+	std::size_t connection_id{ 0 };
+
+	for (std::size_t idx = 0; idx < mContent->getNumInputs(); idx++)
+	{
+		if (mContent->getInput(idx) == wire)
+		{
+			is_input = true;
+			connection_id = idx;
+			break;
+		}
+	}
+
+	for (std::size_t idx = 0; idx < mContent->getNumOutputs(); idx++)
+	{
+		if (mContent->getOutput(idx) == wire)
+		{
+			connection_id = idx;
+			break;
+		}
+	}
+
+	Point loc;
+	if (is_input)
+	{
+		loc = Point(0.0, mBodyHeight/2.0);
+	}
+	else
+	{
+		loc = Point(mBodyWidth, mBodyHeight / 2.0);
+	}
+
+	loc.move(mTransform.getLocation().getX(), mTransform.getLocation().getY());
+	return loc;
+}

plugins/quantum_computing/src/visuals/QuantumGateNode.h

@@ -0,0 +1,34 @@
+#pragma once
+
+#include "QuantumCircuitElementNode.h"
+
+class RectangleNode;
+class EquationNode;
+class QuantumGate;
+class LatexMathExpression;
+
+class QuantumGateNode : public QuantumCircuitElementNode
+{
+public:
+	QuantumGateNode(const Transform& t = {});
+
+	virtual ~QuantumGateNode();
+
+	Point getConnectionLocation(AbstractQuantumWire* wire) const override;
+
+	void setContent(QuantumGate* gate);
+
+	void update(SceneInfo* sceneInfo);
+private:
+	void createOrUpdateGeometry(SceneInfo* sceneInfo);
+
+	QuantumGate* mContent{ nullptr };
+	bool mContentDirty{ true };
+
+	std::unique_ptr<RectangleNode> mBody;
+
+	double mBodyWidth = 30;
+	double mBodyHeight = 24;
+	std::unique_ptr<LatexMathExpression> mLabelExpression;
+	std::unique_ptr<EquationNode> mLabel;
+};

plugins/quantum_computing/src/visuals/QuantumTerminalNode.cpp

@@ -5,7 +5,7 @@
 #include "LatexMathExpression.h"
 
 QuantumTerminalNode::QuantumTerminalNode(const Transform& transform)
-	: AbstractVisualNode(transform)
+	: QuantumCircuitElementNode(transform)
 {
 
 }
@@ -27,7 +27,7 @@ void QuantumTerminalNode::update(SceneInfo* sceneInfo)
 
 void QuantumTerminalNode::createOrUpdateGeometry(SceneInfo* sceneInfo)
 {
-	if (!mLabel)
+	if (!mLabel && mContent->getTerminalType() != QuantumTerminal::TerminalType::OUTPUT)
 	{
 		const auto value = mContent->getValue();
 		std::string label;
@@ -50,4 +50,11 @@ void QuantumTerminalNode::createOrUpdateGeometry(SceneInfo* sceneInfo)
 
 		addChild(mLabel.get());
 	}
-}
+}
+
+Point QuantumTerminalNode::getConnectionLocation(AbstractQuantumWire*) const
+{
+	auto left = mTransform.getLocation();
+	left.move(mWidth, mHeight/2.0);
+	return left;
+}

plugins/quantum_computing/src/visuals/QuantumTerminalNode.h

@@ -1,16 +1,18 @@
 #pragma once
 
-#include "AbstractVisualNode.h"
+#include "QuantumCircuitElementNode.h"
 
 class QuantumTerminal;
 class EquationNode;
 class LatexMathExpression;
 
-class QuantumTerminalNode : public AbstractVisualNode
+class QuantumTerminalNode : public QuantumCircuitElementNode
 {
 public:
 	QuantumTerminalNode(const Transform& transform);
 
+	Point getConnectionLocation(AbstractQuantumWire* wire) const override;
+
 	void setContent(QuantumTerminal* terminal);
 
 	void update(SceneInfo* sceneInfo);
@@ -20,6 +22,9 @@ private:
 	QuantumTerminal* mContent{ nullptr };
 	bool mContentDirty{ true };
 
+	double mWidth = 20.0;
+	double mHeight = 10.0;
+
 	std::unique_ptr<LatexMathExpression> mLabelExpression;
 	std::unique_ptr<EquationNode> mLabel;
 };

plugins/quantum_computing/src/visuals/QuantumWireNode.cpp

@@ -0,0 +1,73 @@
+#include "QuantumWireNode.h"
+
+#include "QuantumWire.h"
+#include "LineNode.h"
+
+QuantumWireNode::QuantumWireNode(const Transform& t)
+{
+
+}
+
+QuantumWireNode::~QuantumWireNode()
+{
+
+}
+
+void QuantumWireNode::setContent(QuantumWire* content)
+{
+	mContent = content;
+	mContentDirty = true;
+}
+
+void QuantumWireNode::setInputLocation(const Point& point)
+{
+    if (mInputLocation != point)
+    {
+        mContentDirty = true;
+        mInputLocation = point;
+    }
+}
+
+void QuantumWireNode::setOutputLocation(const Point& point)
+{
+    if (mOutputLocation != point)
+    {
+        mContentDirty = true;
+        mOutputLocation = point;
+    }
+}
+
+void QuantumWireNode::update(SceneInfo* sceneInfo)
+{
+    if (mContentDirty)
+    {
+        createOrUpdateGeometry(sceneInfo);
+        mContentDirty = false;
+    }
+}
+
+void QuantumWireNode::createOrUpdateGeometry(SceneInfo* sceneInfo)
+{
+    if (!mLine)
+    {
+        auto loc = mOutputLocation;
+        loc.move(-mInputLocation.getX(), -mInputLocation.getY(), -mInputLocation.getZ());
+
+        std::vector<Point> points;
+
+        if (loc.getY() == 0.0)
+        {
+            points = { loc };
+        }
+        else
+        {
+            auto join0 = Point(loc.getX() * 3.0 / 4.0, 0.0);
+            auto join1 = Point(loc.getX() * 3.0 / 4.0, loc.getY());
+            points = { join0,  join1 , loc };
+        }
+
+        mLine = std::make_unique<LineNode>(Transform(mInputLocation), points);
+
+        addChild(mLine.get());
+    }
+}

plugins/quantum_computing/src/visuals/QuantumWireNode.h

@@ -0,0 +1,33 @@
+#pragma once
+
+#include "AbstractVisualNode.h"
+
+class QuantumWire;
+class LineNode;
+
+class QuantumWireNode : public AbstractVisualNode
+{
+public:
+	QuantumWireNode(const Transform& t = {});
+
+	virtual ~QuantumWireNode();
+
+	void setInputLocation(const Point& point);
+
+	void setOutputLocation(const Point& point);
+
+	void setContent(QuantumWire* content);
+
+	void update(SceneInfo* sceneInfo);
+
+private:
+	void createOrUpdateGeometry(SceneInfo* sceneInfo);
+
+	QuantumWire* mContent{ nullptr };
+	bool mContentDirty{ true };
+
+	Point mInputLocation;
+	Point mOutputLocation;
+
+	std::unique_ptr<LineNode> mLine;
+};

plugins/quantum_computing/test/TestQuantumCircuitParsing.cpp

@@ -15,7 +15,7 @@ TEST_CASE(TestQuantumCircuitParsing, "quantum_computing")
 
     TestRenderer renderer(100, 100);
 
-    auto node = std::make_unique<QuantumCircuitNode>(Point(10, 10));
+    auto node = std::make_unique<QuantumCircuitNode>(Point(20, 20));
 
     node->setContent(circuit.get());