0,0 → 1,99 |
#include "Gate_AND.h" |
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Gate_AND::Gate_AND(int gateID, gType type, int numInputs, int gateLevel) |
: Gate_BASE(gateID, type, numInputs, gateLevel) |
{ |
textRect = QRectF(BORDER_OFFSET, BORDER_OFFSET, xSize - BORDER_OFFSET * 3, ySize - BORDER_OFFSET * 2); |
} |
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void Gate_AND::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) |
{ |
Q_UNUSED(widget); |
Q_UNUSED(option); |
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#ifdef _DEBUG |
painter->save(); |
painter->setPen((auxSelected) ? debugSelectedPen : debugPen); |
painter->setBrush(debugBrush); |
painter->drawRect(0, 0, xSize, ySize); |
painter->drawRect(textRect); |
if (numInputs < 2) { |
painter->setPen(debugErrorPen); |
painter->drawLine(0, 0, xSize, ySize); |
painter->drawLine(xSize, 0, 0, ySize); |
} |
painter->restore(); |
#endif |
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if (auxSelected) painter->setPen(highlightedPen); |
else painter->setPen(defaultPen); |
painter->setBrush(defaultBrush); |
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// Draw circles indicating I/O points |
for (int i = 0; i < numInputs; i++) { |
painter->drawEllipse(inputPoints[i], INPUT_CIRCLE_SIZE, INPUT_CIRCLE_SIZE); |
} |
painter->drawEllipse(outputPoint, INPUT_CIRCLE_SIZE, INPUT_CIRCLE_SIZE); |
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// Draw gate outline |
painter->drawLine(BORDER_OFFSET, BORDER_OFFSET, BORDER_OFFSET, ySize - BORDER_OFFSET); |
painter->drawLine(BORDER_OFFSET, BORDER_OFFSET, xSize - (BORDER_OFFSET * (numInputs + 1.5)), BORDER_OFFSET); |
painter->drawLine(BORDER_OFFSET, ySize - BORDER_OFFSET, xSize - (BORDER_OFFSET * (numInputs + 1.5)), ySize - BORDER_OFFSET); |
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QRect arcBox(xSize - BORDER_OFFSET * (numInputs + 1) * 2, BORDER_OFFSET, BORDER_OFFSET * (numInputs + 1) * 2 - BORDER_OFFSET, ySize - BORDER_OFFSET * 2); |
painter->drawArc(arcBox, -90 * 16, 180 * 16); |
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// Draw I/O lines |
for (int i = 0; i < numInputs; i++) { |
painter->drawLine(inputPoints[i], QPointF(inputPoints[i].x() + BORDER_OFFSET, inputPoints[i].y())); |
} |
painter->drawLine(outputPoint, QPointF(outputPoint.x() - BORDER_OFFSET, outputPoint.y())); |
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// Draw text showing gate ID |
painter->setPen(defaultPen); |
painter->setFont(defaultFont); |
painter->drawText(textRect, Qt::AlignCenter, QString::number(gateID)); |
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// If enqueued, draw circle around gate ID |
if (enqueued) { |
painter->drawEllipse(textRect.center(), ENQUEUED_CIRCLE_WIDTH, ENQUEUED_CIRCLE_WIDTH); |
} |
} |
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void Gate_AND::simulateToOutput() |
{ |
// Save initial values to compare to later |
logicValue initValue = outputValue; |
logicValue initFaultyValue = outputFaultyValue; |
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// Compute new output values |
bool undefined = false, undefinedFaulty = false; |
bool allOnes = true, allOnesFaulty = true; |
bool allZeros = true, allZerosFaulty = true; |
for (int i = 0; i < numInputs; i++) { |
if (inputValues[i] == logicValue_X) undefined = true; |
if (inputValues[i] == logicValue_0) allOnes = false; |
if (inputValues[i] == logicValue_1) allZeros = false; |
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if (inputFaultyValues[i] == logicValue_X) undefinedFaulty = true; |
if (inputFaultyValues[i] == logicValue_0) allOnesFaulty = false; |
if (inputFaultyValues[i] == logicValue_1) allZerosFaulty = false; |
} |
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if (undefined) outputValue = logicValue_X; |
else if (allOnes) outputValue = logicValue_1; |
else outputValue = logicValue_0; |
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if (undefinedFaulty) outputFaultyValue = logicValue_X; |
else if (allOnesFaulty) outputFaultyValue = logicValue_1; |
else outputFaultyValue = logicValue_0; |
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// If outputs have changed, queue the connected gate for simulation |
if (outputValue != initValue || outputFaultyValue != initFaultyValue) |
emit enqueueSim(this); |
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// Update connected wire values |
for (int i = 0; i < gateOutputWires.size(); i++) { |
gateOutputWires[i]->setValue(outputValue, outputFaultyValue, false); |
} |
} |