VuoRendererPort.cc

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#include "VuoStringUtilities.hh"
 
#include "VuoRendererComposition.hh"
#include "VuoRendererFonts.hh"
#include "VuoRendererPort.hh"
#include "VuoRendererSignaler.hh"
#include "VuoRendererTypecastPort.hh"
 
#include "VuoCompilerInputEventPort.hh"
#include "VuoCompilerInputDataClass.hh"
#include "VuoCompilerInputEventPortClass.hh"
 
#include "VuoGenericType.hh"
#include "VuoNodeClass.hh"
 
extern "C" {
#include "VuoAnchor.h"
#include "VuoAudioInputDevice.h"
#include "VuoAudioOutputDevice.h"
#include "VuoImage.h"
#include "VuoIntegerRange.h"
#include "VuoRange.h"
#include "VuoScreen.h"
#include "VuoTransform.h"
#include "VuoUrl.h"
#include "VuoSpeechVoice.h"
}
 
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdocumentation"
    #include <json-c/json.h>
#pragma clang diagnostic pop
 
 
#include "VuoHeap.h"
 
const qreal VuoRendererPort::portRadius              = 8;         // VuoRendererFonts::thickPenWidth*8./20.
const qreal VuoRendererPort::portSpacing             = 15;        // VuoRendererFonts::thickPenWidth*3.0/4.0
const qreal VuoRendererPort::portContainerMargin     = 3.333333;  // VuoRendererFonts::thickPenWidth / 6.
const qreal VuoRendererPort::portInset               = 1.4;
const qreal VuoRendererPort::portBarrierWidth        = 5.5;  // VuoRendererFonts::thickPenWidth*5.5/20.
const qreal VuoRendererPort::portConstantTextPadding = 6.5;  // VuoRendererFonts::thickPenWidth*6.5/20.
 
VuoRendererPort::VuoRendererPort(VuoPort * basePort, VuoRendererSignaler *signaler,
                                 bool isOutput, bool isRefreshPort, bool isFunctionPort)
    : VuoBaseDetail<VuoPort>("VuoRendererPort standard", basePort)
{
    getBase()->setRenderer(this);
 
    setZValue(portZValue);
 
    this->signaler = signaler;
 
    this->isOutput = isOutput;
    this->isRefreshPort = isRefreshPort;
    this->isFunctionPort = isFunctionPort;
    this->_eligibilityHighlight = VuoRendererColors::noHighlight;
    this->isEligibleForSelection = false;
    setAnimated(false);
    this->typecastParentPort = NULL;
    this->customizedPortName = getDefaultPortNameToRender();
 
    resetTimeLastEventFired();
 
    const int maxAnimationsPerPort = 4;
 
    if (getInput() || (getBase()->getClass()->getPortType() == VuoPortClass::triggerPort))
    {
        for (int i = 0; i < maxAnimationsPerPort; ++i)
        {
            QGraphicsItemAnimation *animation = new QGraphicsItemAnimation();
            animation->setTimeLine(new QTimeLine(VuoRendererColors::activityAnimationFadeDuration));
            animations.push_back(animation);
        }
    }
 
    if (! isHiddenRefreshPort())
    {
        setFlag(QGraphicsItem::ItemIsFocusable, true);  // allow delivery of key events
        setAcceptHoverEvents(true);  // allow delivery of mouse-hover events
    }
 
    updateNameRect();
    updateCachedPortPath();
    updateCachedBoundingRect();
    updateEnabledStatus();
 
    if (getConstantAsStringToRender() != getConstantAsTruncatedStringToRender())
        setToolTip(QString("<span></span>") + getConstantAsStringToRender().c_str());
}
 
void VuoRendererPort::addRoundedTriangle(QPainterPath &p, QPointF center, qreal radius, qreal cornerRadius)
{
    p.moveTo(center + QPointF(radius,0));
    for (int theta = 0; theta <= 360; theta += 120)
    {
        QRectF rect(center.x() + (radius - cornerRadius)*cos(theta*M_PI/180.) - cornerRadius,
                    center.y() - (radius - cornerRadius)*sin(theta*M_PI/180.) - cornerRadius,
                    cornerRadius*2,
                    cornerRadius*2);
        bool first = theta==0;
        bool last = theta==360;
 
        p.arcTo(rect,
                theta - (first ? 0 : 60),
                (first||last ? 60 : 120));
    }
}
 
QPainterPath VuoRendererPort::getPortPath() const
{
    return cachedPortPath;
}
 
void VuoRendererPort::updateCachedPortPath()
{
    if (isHiddenRefreshPort())
    {
        cachedPortPath = QPainterPath();
        return;
    }
 
    cachedPortPath = getPortPath(VuoRendererPort::portInset,
                       getBase()->getClass()->getPortType(),
                       isConstant() ? QString::fromUtf8(getConstantAsTruncatedStringToRender().c_str()) : "",
                       getInput(),
                       carriesData()
                       );
}
 
QPainterPath VuoRendererPort::getPortPath(qreal inset,
                                          VuoPortClass::PortType portType,
                                          QString constantText,
                                          bool isInputPort,
                                          bool carriesData
                                         )
{
    QPainterPath p;
    QRectF outerPortRect = getPortRect();
    QRectF innerPortRect = outerPortRect.adjusted(inset,inset,-inset,-inset);
 
    QRectF textRect = getPortConstantTextRectForText(constantText);
 
    qreal left = textRect.x() - portConstantTextPadding + inset - VuoRendererPort::portInset;
    QPointF     topLeftCorner(left                  + .5, innerPortRect.top()    - .24);
    QPointF    topRightCorner(innerPortRect.right() + .5, innerPortRect.top()    - .24);
    QPointF bottomRightCorner(innerPortRect.right() + .5, innerPortRect.bottom() - .43);
    QPointF  bottomLeftCorner(left                  + .5, innerPortRect.bottom() - .43);
 
    p.moveTo(innerPortRect.right() + .5, innerPortRect.center().y());
    qreal adjustedPortRadius = portRadius - 2;
    addRoundedCorner(p, true, bottomRightCorner, adjustedPortRadius, false, false);
    addRoundedCorner(p, true,  bottomLeftCorner, adjustedPortRadius, false, true);
    addRoundedCorner(p, true,     topLeftCorner, adjustedPortRadius, true, true);
    addRoundedCorner(p, true,    topRightCorner, adjustedPortRadius, true, false);
 
    return p;
}
 
QRectF VuoRendererPort::getPortRect(void)
{
    return QRectF(
        -portRadius,
        -portRadius,
        portRadius*2.0,
        portRadius*2.0
    );
}
 
QRectF VuoRendererPort::getEventBarrierRect(void) const
{
    QRectF barrierRect = QRectF();
 
    bool sidebarPaintMode = dynamic_cast<const VuoRendererPublishedPort *>(this);
    VuoPortClass::PortType type = getBase()->getClass()->getPortType();
    VuoPortClass::EventBlocking eventBlocking = getBase()->getClass()->getEventBlocking();
 
    if (!isAnimated &&
            ((!isOutput && !sidebarPaintMode && eventBlocking != VuoPortClass::EventBlocking_None)
            || (isOutput && type == VuoPortClass::triggerPort))
        )
    {
        QRectF portRect = getPortRect();
        if (isOutput)
            barrierRect = QRectF(portRect.topLeft()  + QPointF( 2 - VuoRendererPort::portBarrierWidth, 2), portRect.bottomLeft()  + QPointF( 2, -3));
        else
            barrierRect = QRectF(portRect.topRight() + QPointF(-1 + VuoRendererPort::portBarrierWidth, 2), portRect.bottomRight() + QPointF(-1, -3));
    }
 
    return barrierRect;
}
 
QPainterPath VuoRendererPort::getWirelessAntennaPath() const
{
    bool paintDataAntenna = hasConnectedWirelessDataCable(true);
    bool paintEventAntenna = hasConnectedWirelessEventCable(true);
    if (!paintDataAntenna && !paintEventAntenna)
        return QPainterPath();
 
    // Mast
    qreal cableWidth;
    VuoRendererCable::getCableSpecs(paintDataAntenna, cableWidth);
 
    const qreal constantWidth = fmax(0, getPortConstantTextRect().width() - 3);
    const qreal mastLength = portRadius * 2.;
    const qreal pixelOffset = -.3;
    QPointF startPoint = (getInput()? -QPointF(mastLength - (paintDataAntenna ? 0.5 : 0 ) + constantWidth, -pixelOffset) : QPointF(0, pixelOffset));
    QPointF endPoint = (getInput()? QPointF(-constantWidth, pixelOffset) : QPointF(mastLength + (paintDataAntenna ? 0.5 : 0 ), pixelOffset));
 
    VuoCable cableBase(NULL, NULL, NULL, NULL);
    VuoRendererCable cableRenderer(&cableBase);
    QPainterPath mastPath = cableRenderer.getCablePathForEndpoints(startPoint, endPoint);
 
    QPainterPathStroker mastStroker;
    mastStroker.setWidth(cableWidth);
    mastStroker.setCapStyle(Qt::RoundCap);
    QPainterPath antennaOutline = mastStroker.createStroke(mastPath);
 
    // Crossbars
    qreal outerCrossbarXOffset = (paintDataAntenna? 1 : 0.5);
    const QPointF outerCrossbarPos = (getInput()? startPoint - QPointF(outerCrossbarXOffset, 0) :
                                                  endPoint + QPointF(outerCrossbarXOffset, 0));
    const int crossbarSpacing = 5;
    const int crossbarHeight = VuoRendererFonts::midPenWidth*5;
 
    QPainterPath crossbars;
    for (int i = 0; i < 2; ++i)
    {
        crossbars.moveTo((outerCrossbarPos +
                         QPointF(QPointF(0, -0.5*crossbarHeight) +
                         QPointF((getInput()? 1 : -1)*crossbarSpacing*i, 0))));
        crossbars.lineTo((outerCrossbarPos +
                         QPointF(QPointF(0, 0.5*crossbarHeight) +
                         QPointF((getInput()? 1 : -1)*crossbarSpacing*i, 0))));
    }
 
    // Union the mast and crossbars.
    QPainterPathStroker crossbarStroker;
    crossbarStroker.setWidth(cableWidth*3/5);
    crossbarStroker.setCapStyle(Qt::RoundCap);
    antennaOutline += crossbarStroker.createStroke(crossbars);
 
    return antennaOutline;
}
 
bool VuoRendererPort::hasConnectedWirelessDataCable(bool includePublishedCables) const
{
    vector<VuoCable *> connectedCables = getBase()->getConnectedCables(includePublishedCables);
    for (vector<VuoCable *>::iterator cable = connectedCables.begin(); cable != connectedCables.end(); ++cable)
        if ((*cable)->hasRenderer() && (*cable)->getRenderer()->effectivelyCarriesData() &&
                (*cable)->getRenderer()->getEffectivelyWireless() &&
                (*cable)->getRenderer()->paintingDisabled())
            return true;
    return false;
}
 
bool VuoRendererPort::hasConnectedWirelessEventCable(bool includePublishedCables) const
{
    vector<VuoCable *> connectedCables = getBase()->getConnectedCables(includePublishedCables);
    for (vector<VuoCable *>::iterator cable = connectedCables.begin(); cable != connectedCables.end(); ++cable)
        if ((*cable)->hasRenderer() && !(*cable)->getRenderer()->effectivelyCarriesData() &&
                (*cable)->getRenderer()->getEffectivelyWireless() &&
                (*cable)->getRenderer()->paintingDisabled())
            return true;
    return false;
}
 
VuoNode::TintColor VuoRendererPort::getPortTint() const
{
    VuoRendererNode *renderedParentNode = getRenderedParentNode();
    if (renderedParentNode)
        return renderedParentNode->getBase()->getTintColor();
    else
    {
        // Tint protocol ports the same color as the protocol.
        if (dynamic_cast<const VuoRendererPublishedPort *>(this) &&
                (dynamic_cast<VuoPublishedPort *>(this->getBase()))->isProtocolPort())
        {
            // @todo: Account for multiple simultaneous active protocols. https://b33p.net/kosada/node/9585
            return VuoRendererColors::getActiveProtocolTint(0, !isOutput);
        }
    }
 
    return VuoNode::TintNone;
}
 
VuoNode::TintColor VuoRendererPort::getWirelessAntennaTint() const
{
    if (!getInput())
        return getPortTint();
 
    set<VuoNode::TintColor> connectedPortTints;
    foreach (VuoRendererPort *port, getPortsConnectedWirelessly(true))
    {
        connectedPortTints.insert(port->getPortTint());
        if (connectedPortTints.size() > 1)
            return VuoNode::TintNone;
    }
 
    if (connectedPortTints.size() == 1)
        return *connectedPortTints.begin();
    else
        return VuoNode::TintNone;
}
 
set<VuoRendererPort *> VuoRendererPort::getPortsConnectedWirelessly(bool includePublishedCables) const
{
    set<VuoRendererPort *> connectedPorts;
    foreach (VuoCable *cable, getBase()->getConnectedCables(includePublishedCables))
    {
        if (cable->hasRenderer() &&
                cable->getRenderer()->getEffectivelyWireless() &&
                cable->getRenderer()->paintingDisabled())
        {
            VuoPort *connectedPort = (getInput()? cable->getFromPort() : cable->getToPort());
            if (connectedPort && connectedPort->hasRenderer())
                connectedPorts.insert(connectedPort->getRenderer());
        }
    }
 
    return connectedPorts;
}
 
VuoRendererInputDrawer * VuoRendererPort::getAttachedInputDrawer(void) const
{
    return getAttachedInputDrawerRenderedWithHostPort(this);
}
 
VuoRendererInputDrawer * VuoRendererPort::getAttachedInputDrawerRenderedWithHostPort(const VuoRendererPort *targetHostPort) const
{
    VuoRendererInputAttachment *underlyingAttachment = getUnderlyingInputAttachment();
    if (underlyingAttachment &&
            underlyingAttachment->getRenderedHostPort() &&
            underlyingAttachment->getRenderedHostPort()->hasRenderer() &&
            (underlyingAttachment->getRenderedHostPort()->getRenderer() == targetHostPort) &&
            (dynamic_cast<VuoRendererInputDrawer *>(underlyingAttachment)))
        return dynamic_cast<VuoRendererInputDrawer *>(underlyingAttachment);
 
    else if (underlyingAttachment)
    {
        // The drawer might not be directly connected in the underlying composition.  Find it anyway.
        foreach (VuoPort *port, underlyingAttachment->getBase()->getInputPorts())
        {
            VuoRendererInputDrawer *upstreamDrawer = port->getRenderer()->getAttachedInputDrawerRenderedWithHostPort(targetHostPort);
            if (upstreamDrawer)
                return upstreamDrawer;
        }
    }
 
    return NULL;
}
 
VuoRendererInputAttachment * VuoRendererPort::getUnderlyingInputAttachment(void) const
{
    if (! getInput())
        return NULL;
 
    vector<VuoCable *> inCables = getBase()->getConnectedCables(false);
    foreach (VuoCable *cable, inCables)
    {
        VuoNode *fromNode = cable->getFromNode();
        if (fromNode && fromNode->hasRenderer() &&
                dynamic_cast<VuoRendererInputAttachment *>(fromNode->getRenderer()) &&
                dynamic_cast<VuoRendererInputAttachment *>(fromNode->getRenderer())->getUnderlyingHostPort()->getRenderer() == this)
            return dynamic_cast<VuoRendererInputAttachment *>(fromNode->getRenderer());
    }
 
    return NULL;
}
 
set<VuoRendererInputAttachment *> VuoRendererPort::getAllUnderlyingUpstreamInputAttachments(void) const
{
    set<VuoRendererInputAttachment *> allUpstreamAttachments;
    VuoRendererInputAttachment *directUpstreamAttachment = getUnderlyingInputAttachment();
    if (!directUpstreamAttachment)
        return allUpstreamAttachments;
 
    allUpstreamAttachments.insert(directUpstreamAttachment);
 
    vector<VuoPort *> inputPorts = directUpstreamAttachment->getBase()->getInputPorts();
    foreach (VuoPort *port, inputPorts)
    {
        set<VuoRendererInputAttachment *> indirectUpstreamAttachments = port->getRenderer()->getAllUnderlyingUpstreamInputAttachments();
        allUpstreamAttachments.insert(indirectUpstreamAttachments.begin(), indirectUpstreamAttachments.end());
    }
 
    return allUpstreamAttachments;
}
 
QRectF VuoRendererPort::getPortConstantTextRect(void) const
{
    return (isConstant()?
                getPortConstantTextRectForText(QString::fromUtf8(getConstantAsTruncatedStringToRender().c_str())) :
                QRectF());
}
 
int VuoRendererPort::getTextWidth(QString text)
{
    static QHash<QString, int> cachedTextWidths;
    QHash<QString, int>::iterator i = cachedTextWidths.find(text);
    if (i != cachedTextWidths.end())
        return i.value();
 
    int textWidth = QFontMetricsF(VuoRendererFonts::getSharedFonts()->nodePortConstantFont())
        .boundingRect(QRectF(0,0,0,0), Qt::TextIncludeTrailingSpaces, text)
        .width();
    cachedTextWidths.insert(text, textWidth);
    return textWidth;
}
 
QRectF VuoRendererPort::getPortConstantTextRectForText(QString text)
{
    int textWidth = getTextWidth(text) + 1;
 
    QRectF textRect(
        -textWidth - portConstantTextPadding + 8,
        -VuoRendererFonts::thickPenWidth/3.0,
        textWidth,
        (VuoRendererPort::portRadius - 1)*2 - 1
    );
 
    return textRect.toAlignedRect();
}
 
 
QRectF VuoRendererPort::getNameRect() const
{
    return this->nameRect;
}
 
void VuoRendererPort::updateNameRect()
{
    QString text = QString::fromUtf8(getPortNameToRender().c_str());
    QFont font = getPortNameFont();
    QSizeF textSize = QFontMetricsF(font).size(0,text);
 
    bool isPortOnDrawer = dynamic_cast<VuoRendererInputAttachment *>(getUnderlyingParentNode());
 
    this->nameRect = QRectF(
        (isOutput? -VuoRendererFonts::thickPenWidth/2.0 - textSize.width() - VuoRendererPort::portRadius :
                                         VuoRendererFonts::thickPenWidth/2.0
                                             - VuoRendererFonts::getHorizontalOffset(font, text)
                                             + (isPortOnDrawer ? 2 : VuoRendererPort::portRadius) + 2.
                                         ),
        -VuoRendererFonts::thickPenWidth/3.0 - (isPortOnDrawer ? 0 : 1),
        textSize.width(),
        textSize.height()
    );
}
 
VuoRendererNode * VuoRendererPort::getUnderlyingParentNode(void) const
{
    VuoRendererNode *node;
    if (getTypecastParentPort())
        node = (((VuoRendererTypecastPort *)(getTypecastParentPort()))->getUncollapsedTypecastNode());
    else
        node = getRenderedParentNode();
 
    return node;
}
 
VuoRendererNode * VuoRendererPort::getRenderedParentNode(void) const
{
    if (!parentItem())
        return NULL;
 
    if (!parentItem()->parentItem())
        return (VuoRendererNode *)(parentItem());
 
    return (VuoRendererNode *)(parentItem()->parentItem());
}
 
VuoRendererPort * VuoRendererPort::getTypecastParentPort() const
{
    return typecastParentPort;
}
 
void VuoRendererPort::setTypecastParentPort(VuoRendererPort *typecastParentPort)
{
    this->typecastParentPort = typecastParentPort;
}
 
QRectF VuoRendererPort::boundingRect(void) const
{
    return cachedBoundingRect;
}
 
void VuoRendererPort::updateCachedBoundingRect()
{
    VuoRendererNode *renderedParentNode = getRenderedParentNode();
    if ((renderedParentNode && renderedParentNode->paintingDisabled()) || isHiddenRefreshPort())
    {
        cachedBoundingRect = QRectF();
        return;
    }
 
    QRectF r = getPortPath().boundingRect();
 
    r = r.united(getEventBarrierRect());
 
    if (portNameRenderingEnabled())
        r = r.united(getNameRect());
 
    if (hasPortAction())
        r = r.united(getActionIndicatorRect());
 
    r = r.united(getWirelessAntennaPath().boundingRect());
 
    // Antialiasing bleed
    r.adjust(-1,-1,1,1);
 
    cachedBoundingRect = r.toAlignedRect();
}
 
QPainterPath VuoRendererPort::shape() const
{
    QPainterPath p;
    p.addRect(boundingRect());
    return p;
}
 
void VuoRendererPort::paintEventBarrier(QPainter *painter, VuoRendererColors *colors)
{
    bool sidebarPaintMode = dynamic_cast<VuoRendererPublishedPort *>(this);
 
    VuoPortClass::PortType type = getBase()->getClass()->getPortType();
    VuoPortClass::EventBlocking eventBlocking = getBase()->getClass()->getEventBlocking();
 
    if (
            !isAnimated &&
            ((!isOutput && !sidebarPaintMode && eventBlocking != VuoPortClass::EventBlocking_None)
            || (isOutput && type == VuoPortClass::triggerPort))
            )
    {
        QRectF barrierRect = getEventBarrierRect();
        QColor eventBlockingBarrierColor = (isAnimated? colors->animatedeventBlockingBarrier() : colors->eventBlockingBarrier());
        painter->setPen(QPen(eventBlockingBarrierColor, VuoRendererPort::portBarrierWidth, Qt::SolidLine, Qt::RoundCap));
 
        if (eventBlocking == VuoPortClass::EventBlocking_Wall || type == VuoPortClass::triggerPort)
            painter->drawLine(barrierRect.center() + QPointF(0, -barrierRect.height()/2. + VuoRendererPort::portBarrierWidth/2. - .83),
                              barrierRect.center() + QPointF(0,  barrierRect.height()/2. - VuoRendererPort::portBarrierWidth/2. +1.16));
        else // VuoPortClass::EventBlocking_Door
        {
            painter->drawPoint(barrierRect.center() + QPointF(0, -barrierRect.height()/2. + 1.75 + .17));
            painter->drawPoint(barrierRect.center() + QPointF(0,  barrierRect.height()/2. - 1.75 + .17));
        }
    }
}
 
QFont VuoRendererPort::getPortNameFont(void) const
{
    if (dynamic_cast<VuoRendererInputAttachment *>(getUnderlyingParentNode()))
        // Use a smaller font for port labels on drawers.
        return VuoRendererFonts::getSharedFonts()->nodePortConstantFont();
    else
        return VuoRendererFonts::getSharedFonts()->nodePortTitleFont();
}
 
void VuoRendererPort::paintPortName(QPainter *painter, VuoRendererColors *colors)
{
    if (!portNameRenderingEnabled())
        return;
 
    VuoRendererPublishedPort *rpp = dynamic_cast<VuoRendererPublishedPort *>(this);
 
    string name = getPortNameToRender();
 
    if (rpp)
        painter->setPen((rpp->isSelected() && rpp->getCurrentlyActive())
                        ? Qt::white
                        : (dynamic_cast<VuoPublishedPort *>(rpp->getBase())->isProtocolPort() ? colors->publishedProtocolPortTitle() : colors->publishedPortTitle()));
    else
        painter->setPen(colors->portTitle());
 
    painter->setFont(getPortNameFont());
    painter->drawText(getNameRect(), isOutput? Qt::AlignRight : Qt::AlignLeft, QString::fromStdString(name));
}
 
string VuoRendererPort::getPortNameToRender() const
{
    bool displayPortName = (getRenderedParentNode()? getRenderedParentNode()->nameDisplayEnabledForPort(this) : true);
 
    return (!displayPortName? "": getPortNameToRenderWhenDisplayed());
}
 
string VuoRendererPort::getPortNameToRenderWhenDisplayed() const
{
    const VuoRendererPublishedPort *publishedPort = dynamic_cast<const VuoRendererPublishedPort *>(this);
    return (publishedPort? getBase()->getClass()->getName() :
                              (!customizedPortName.empty()? customizedPortName :
                                                            getBase()->getClass()->getName()));
}
 
void VuoRendererPort::setPortNameToRender(string name)
{
    this->customizedPortName = name;
    updateNameRect();
}
 
string VuoRendererPort::getDefaultPortNameToRender()
{
    VuoPortClass *pc = getBase()->getClass();
    if (pc->hasCompiler())
        return static_cast<VuoCompilerPortClass *>(pc->getCompiler())->getDisplayName();
    else
        return "";
}
 
bool VuoRendererPort::hasPortAction(void) const
{
    return getBase()->getClass()->hasPortAction();
}
 
QRectF VuoRendererPort::getActionIndicatorRect(void) const
{
    QFontMetricsF fontMetrics = QFontMetricsF(getPortNameFont());
    const qreal marginFromPortName = 4;
    const qreal triangleSize = 6;
    qreal triangleLeft = qRound( getNameRect().right() + marginFromPortName );
    qreal triangleTop = qRound( getNameRect().bottom() - fontMetrics.descent() - fontMetrics.xHeight() );
 
    return QRectF(triangleLeft, triangleTop, triangleSize, triangleSize);
}
 
void VuoRendererPort::paintActionIndicator(QPainter *painter, VuoRendererColors *colors)
{
    if (hasPortAction())
    {
        QRectF rect = getActionIndicatorRect();
 
        QPainterPath p;
        addRoundedTriangle(p, rect.center() + QPointF(-1,-.75), qRound(rect.width()/2.) + .5, VuoRendererNode::cornerRadius/9.);
 
        QColor color = colors->actionIndicator();
        painter->fillPath(p, color);
    }
}
 
void VuoRendererPort::paintWirelessAntenna(QPainter *painter, VuoRendererColors *colors)
{
    painter->fillPath(getWirelessAntennaPath(), QBrush(colors->cableMain()));
}
 
void VuoRendererPort::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
    if (isHiddenRefreshPort())
        return;
 
    VuoRendererNode *renderedParentNode = getRenderedParentNode();
    if (renderedParentNode && renderedParentNode->paintingDisabled())
        return;
 
    VuoRendererPublishedPort *publishedPort = dynamic_cast<VuoRendererPublishedPort *>(this);
 
    // Workaround to prevent items that have been removed from the scene from being painted on the scene anyway.
    // https://b33p.net/kosada/node/7938
    if (!(scene() || publishedPort))
        return;
 
    painter->setRenderHint(QPainter::Antialiasing, true);
    drawBoundingRect(painter);
 
    bool isColorInverted = isRefreshPort || isFunctionPort;
 
    VuoRendererColors::SelectionType selectionType = ((renderedParentNode && renderedParentNode->isSelected())? VuoRendererColors::directSelection :
                                                       VuoRendererColors::noSelection);
 
    bool isHovered = isEligibleForSelection;
    qint64 timeOfLastActivity = getTimeOfLastActivity();
 
    // If an attached drawer does have eligible ports, ensure this host port isn't faded out, so the port name is legible.
    VuoRendererColors::HighlightType effectiveHighlight = _eligibilityHighlight;
    bool effectivelyHovered = isHovered;
    VuoRendererInputDrawer *drawer = getAttachedInputDrawer();
    if (drawer)
    {
        VuoRendererColors::HighlightType drawerHighlight = drawer->getEligibilityHighlight();
        if (drawerHighlight < _eligibilityHighlight)
        {
            effectiveHighlight = drawerHighlight;
 
            if (_eligibilityHighlight == VuoRendererColors::ineligibleHighlight)
                effectivelyHovered = false;
        }
    }
 
    VuoRendererColors *colors = new VuoRendererColors(getPortTint(),
                                                      selectionType,
                                                      effectivelyHovered,
                                                      effectiveHighlight,
                                                      timeOfLastActivity);
    VuoRendererColors *antennaColors = new VuoRendererColors((getWirelessAntennaTint()),
                                                      selectionType,
                                                      isHovered,
                                                      VuoRendererColors::noHighlight,
                                                      timeOfLastActivity);
 
    // Draw the port circle / constant flag
    QPainterPath portPath = getPortPath();
 
    QBrush portBrush;
 
    if (isColorInverted)
        portBrush = colors->portTitlebarFill();
    else if (isAnimated)
        portBrush = colors->animatedPortFill();
    else if (publishedPort && dynamic_cast<VuoPublishedPort *>(publishedPort->getBase())->isProtocolPort())
        portBrush = colors->portTitlebarFill();
    else if (publishedPort)
        portBrush = colors->publishedPortFill();
    else
        portBrush = colors->portFill();
 
 
    if (!isConstant())
    {
        bool showRightHalfOnly = false;
        VuoRendererInputDrawer *drawer = getAttachedInputDrawer();
        if (drawer)
        {
            VuoRendererPort *drawerChildPort = (drawer && (drawer->getInputPorts().size() >= VuoNodeClass::unreservedInputPortStartIndex+1)?
                                                    drawer->getInputPorts()[VuoNodeClass::unreservedInputPortStartIndex] :
                                                NULL);
 
            // Prevent neighboring semi-transparent highlights from overlapping in a misleading way
            // Essentially: Paint the whole circle if the circle is meant to be more opaque than the drawer handle it intersects.
            qint64 timeNow = QDateTime::currentMSecsSinceEpoch();
            const double fadeThreshold = 0.3; // Tuned visually.
            qint64 childTimeOfLastActivity = drawerChildPort? drawerChildPort->getTimeOfLastActivity() : VuoRendererItem::notTrackingActivity;
            bool showingActiveEvent = (timeOfLastActivity != VuoRendererItem::notTrackingActivity) &&
                                      (((timeNow - timeOfLastActivity) < VuoRendererColors::activityAnimationFadeDuration*fadeThreshold) ||
                                       (timeOfLastActivity == VuoRendererItem::activityInProgress));
            bool childShowingActiveEvent = (childTimeOfLastActivity != VuoRendererItem::notTrackingActivity) &&
                                           (((timeNow - childTimeOfLastActivity) < VuoRendererColors::activityAnimationFadeDuration*fadeThreshold) ||
                                           (childTimeOfLastActivity == VuoRendererItem::activityInProgress));
            showRightHalfOnly = !effectivelyHovered && drawerChildPort &&
                                     (drawerChildPort->eligibilityHighlight() <= effectiveHighlight) &&
                                     !(showingActiveEvent && !childShowingActiveEvent);
        }
 
        if (showRightHalfOnly)
            painter->setClipRect(QRectF(-0.39, -portRadius, portRadius, portRadius*2.));
 
        painter->fillPath(portPath, portBrush);
 
        if (showRightHalfOnly)
            painter->setClipping(false);
    }
    else
    {
        // Display a color swatch for VuoColor data.
        bool isColorPort = getDataType() && getDataType()->getModuleKey()=="VuoColor";
        if (isColorPort)
        {
            string colorRGBAJsonString = getConstantAsString();
            VuoColor c = VuoColor_makeFromString(colorRGBAJsonString.c_str());
            QColor swatchColor = QColor(c.r*255, c.g*255, c.b*255, c.a*255 * portBrush.color().alphaF());
            VuoReal h,s,l,a;
            VuoColor_getHSLA(c, &h, &s, &l, &a);
 
            bool isDark = colors->isDark();
 
            // Two possible swatches:
 
            // 1. Semitransparent color, or solid color that matches the canvas background:  Draw a background+border, then draw the swatch.
            if ((a < 1) || (isDark ? l < .25 : l > .75))
            {
                // Fill the entire background with a color distinct from the canvas.
                QColor topLeftColor = colors->nodeFrame();
                painter->fillPath(portPath, topLeftColor);
 
                // Fill the bottom right of the background with the opposite color.
                // Use a slightly smaller circle, so the topLeftColor acts as a border.
                QColor bottomRightColor = isDark ? Qt::black : Qt::white;
                QTransform transform;
                transform.scale(0.87, 0.87);
                QPainterPath smallerCircle = portPath * transform;
                {
                    QRectF r = portPath.boundingRect();
                    QPainterPath bottomRight;
                    bottomRight.moveTo(r.bottomLeft());
                    bottomRight.lineTo(r.topRight());
                    bottomRight.lineTo(r.bottomRight());
                    painter->setClipPath(smallerCircle);
                    painter->fillPath(bottomRight, bottomRightColor);
                    painter->setClipping(false);
                }
 
                // Draw the swatch.
                painter->fillPath(smallerCircle, swatchColor);
            }
 
            // 2. Solid color that's distinct from the canvas background:  Just draw the swatch.
            else
                painter->fillPath(portPath, swatchColor);
        }
        else
        {
            painter->fillPath(portPath, portBrush);
 
            QString constantText = QString::fromUtf8(getConstantAsTruncatedStringToRender().c_str());
            QBrush constantFlagBackgroundBrush = colors->constantFill();
 
            // Constant string
            QRectF textRect = getPortConstantTextRectForText(constantText);
            painter->setPen(colors->constantText());
            painter->setFont(VuoRendererFonts::getSharedFonts()->nodePortConstantFont());
            painter->drawText(textRect, Qt::AlignLeft, constantText);
        }
    }
 
    if (! carriesData())
    {
        QRectF r = getPortRect();
        QPainterPath p;
        addRoundedTriangle(p, r.center() + QPointF(.5, -.3), (r.width() - VuoRendererPort::portInset*2)/2.-2, VuoRendererNode::cornerRadius/6.);
        painter->fillPath(p, colors->portIcon());
    }
 
    paintEventBarrier(painter, colors);
    paintPortName(painter, colors);
    paintActionIndicator(painter, colors);
    paintWirelessAntenna(painter, antennaColors);
 
    delete colors;
    delete antennaColors;
}
 
qint64 VuoRendererPort::getTimeOfLastActivity()
{
    VuoPortClass::PortType type = getBase()->getClass()->getPortType();
    bool isTriggerPort = (type == VuoPortClass::triggerPort);
 
    VuoRendererComposition *composition = dynamic_cast<VuoRendererComposition *>(scene());
    bool renderNodeActivity = composition && composition->getRenderNodeActivity();
    bool renderPortActivity = composition && composition->getRenderPortActivity();
    VuoRendererNode *renderedParentNode = getRenderedParentNode();
 
    return ((! renderNodeActivity)? VuoRendererItem::notTrackingActivity :
                                    ((isTriggerPort && renderPortActivity)? timeLastEventFired :
                                    (getTypecastParentPort()? static_cast<VuoRendererTypecastPort *>(getTypecastParentPort())->getUncollapsedTypecastNode()->getTimeLastExecutionEnded() :
                                    (renderedParentNode? renderedParentNode->getTimeLastExecutionEnded() :
                                    VuoRendererItem::notTrackingActivity))));
}
 
bool VuoRendererPort::getEligibleForSelection(void)
{
    return isEligibleForSelection;
}
 
bool VuoRendererPort::isEligibleForConnection(void)
{
    return _eligibilityHighlight == VuoRendererColors::standardHighlight
        || _eligibilityHighlight == VuoRendererColors::subtleHighlight;
}
 
void VuoRendererPort::setEligibilityHighlight(VuoRendererColors::HighlightType eligibility)
{
    _eligibilityHighlight = eligibility;
}
 
VuoRendererColors::HighlightType VuoRendererPort::eligibilityHighlight(void)
{
    return _eligibilityHighlight;
}
 
void VuoRendererPort::extendedHoverEnterEvent(bool cableDragUnderway, bool disableConnectedCableHighlight)
{
    extendedHoverMoveEvent(cableDragUnderway, disableConnectedCableHighlight);
}
 
void VuoRendererPort::extendedHoverMoveEvent(bool cableDragUnderway, bool disableConnectedCableHighlight)
{
    QGraphicsItem::CacheMode normalCacheMode = cacheMode();
    setCacheMode(QGraphicsItem::NoCache);
 
    prepareGeometryChange();
    isEligibleForSelection = (cableDragUnderway? isEligibleForConnection() : true);
 
    setCacheMode(normalCacheMode);
 
    setFocus();
 
    if (!cableDragUnderway && !disableConnectedCableHighlight)
    {
        vector<VuoCable *> connectedCables = getBase()->getConnectedCables(false);
        if (supportsDisconnectionByDragging() && (! connectedCables.empty()))
        {
            VuoRendererCable *cableToDisconnect = connectedCables.back()->getRenderer();
            cableToDisconnect->updateGeometry();
            cableToDisconnect->setHovered(true);
        }
    }
}
 
void VuoRendererPort::extendedHoverLeaveEvent()
{
    QGraphicsItem::CacheMode normalCacheMode = cacheMode();
    setCacheMode(QGraphicsItem::NoCache);
 
    prepareGeometryChange();
    isEligibleForSelection = false;
 
    setCacheMode(normalCacheMode);
 
    clearFocus();
 
    vector<VuoCable *> connectedCables = getBase()->getConnectedCables(false);
    if (supportsDisconnectionByDragging() && (! connectedCables.empty()))
    {
        VuoRendererCable *cableToDisconnect = connectedCables.back()->getRenderer();
        cableToDisconnect->updateGeometry();
        cableToDisconnect->setHovered(false);
    }
}
 
bool VuoRendererPort::canConnectDirectlyWithoutSpecializationTo(VuoRendererPort *toPort, bool eventOnlyConnection)
{
    bool fromPortIsEnabledOutput = (this->getOutput() && this->isEnabled());
    bool toPortIsEnabledInput = (toPort && toPort->getInput() && toPort->isEnabled());
 
    if (!(fromPortIsEnabledOutput && toPortIsEnabledInput))
            return false;
 
    // OK: Any connection made using an event-only cable.
    if (eventOnlyConnection)
        return true;
 
    VuoType *fromDataType = this->getDataType();
    VuoType *toDataType = toPort->getDataType();
 
    // OK: Event-only to event+data.
    // OK: Event-only to event-only.
    // OK: Event+data to event-only.
    if (!fromDataType || !toDataType)
        return true;
 
    // OK: Event+data to event+data, if types are non-generic and identical.
    if (! dynamic_cast<VuoGenericType *>(fromDataType) && (fromDataType == toDataType))
        return true;
 
    // OK: Event+data to event+data, if types are generic and compatible.
    if (dynamic_cast<VuoGenericType *>(fromDataType) && dynamic_cast<VuoGenericType *>(toDataType))
    {
        if (VuoType::isListTypeName(fromDataType->getModuleKey()) != VuoType::isListTypeName(toDataType->getModuleKey()))
            return false;
 
        return (dynamic_cast<VuoGenericType *>(fromDataType)->isGenericTypeCompatible(dynamic_cast<VuoGenericType *>(toDataType)));
    }
 
    return false;
}
 
bool VuoRendererPort::canConnectDirectlyWithSpecializationTo(VuoRendererPort *toPort, bool eventOnlyConnection)
{
    VuoRendererPort *portToSpecialize = NULL;
    string specializedTypeName = "";
 
    return (this->canConnectDirectlyWithSpecializationTo(toPort, eventOnlyConnection, &portToSpecialize, specializedTypeName));
}
 
bool VuoRendererPort::canConnectDirectlyWithSpecializationTo(VuoRendererPort *toPort, bool eventOnlyConnection, VuoRendererPort **portToSpecialize, string &specializedTypeName)
{
    *portToSpecialize = NULL;
    specializedTypeName = "";
 
    if (this->canConnectDirectlyWithoutSpecializationTo(toPort, eventOnlyConnection))
        return true;
 
    bool fromPortIsEnabledOutput = (this->getOutput() && this->isEnabled());
    bool toPortIsEnabledInput = (toPort && toPort->getInput() && toPort->isEnabled());
 
    if (!(fromPortIsEnabledOutput && toPortIsEnabledInput))
        return false;
 
    VuoType *originalFromDataType = ((VuoCompilerPortClass *)(this->getBase()->getClass()->getCompiler()))->getDataVuoType();
    VuoType *originalToDataType = ((VuoCompilerPortClass *)(toPort->getBase()->getClass()->getCompiler()))->getDataVuoType();
 
    VuoType *currentFromDataType = this->getDataType();
    VuoType *currentToDataType = toPort->getDataType();
 
    if (!(originalFromDataType && originalToDataType && currentFromDataType && currentToDataType))
        return false;
 
    VuoGenericType *currentFromGenericType = dynamic_cast<VuoGenericType *>(currentFromDataType);
    VuoGenericType *currentToGenericType = dynamic_cast<VuoGenericType *>(currentToDataType);
 
    if (VuoType::isListTypeName(currentFromDataType->getModuleKey()) != VuoType::isListTypeName(currentToDataType->getModuleKey()))
        return false;
 
    // Case: The 'From' port is generic and can be specialized to match the concrete type of the 'To' port.
    if (currentFromGenericType && currentFromGenericType->isSpecializedTypeCompatible(originalToDataType->getModuleKey()))
    {
        *portToSpecialize = this;
        specializedTypeName = originalToDataType->getModuleKey();
 
        return true;
    }
 
    // Case: The 'To' port is generic and can be specialized to match the concrete type of the 'From' port.
    else if (currentToGenericType && currentToGenericType->isSpecializedTypeCompatible(originalFromDataType->getModuleKey()))
    {
        *portToSpecialize = toPort;
        specializedTypeName = originalFromDataType->getModuleKey();
 
        return true;
    }
 
    return false;
}
 
VuoCable * VuoRendererPort::getCableConnectedTo(VuoRendererPort *toPort, bool includePublishedCables)
{
    vector<VuoCable *> cables = this->getBase()->getConnectedCables(includePublishedCables);
    for (vector<VuoCable *>::iterator cable = cables.begin(); cable != cables.end(); ++cable)
        if ((*cable)->getToPort() == toPort->getBase())
            return (*cable);
 
    return NULL;
}
 
void VuoRendererPort::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event)
{
    if (isConstant())
    {
        signaler->signalInputEditorRequested(this);
    }
}
 
void VuoRendererPort::keyPressEvent(QKeyEvent *event)
{
    if (isConstant() &&
        (event->key() == Qt::Key_Return || event->key() == Qt::Key_Enter))
    {
        signaler->signalInputEditorRequested(this);
    }
}
 
bool VuoRendererPort::supportsDisconnectionByDragging(void)
{
    return (getInput() &&
            (! dynamic_cast<VuoRendererTypecastPort *>(this)) &&
            (! getAttachedInputDrawer()));
}
 
bool VuoRendererPort::getInput(void) const
{
    return ((! isOutput) && (! isFunctionPort));
}
 
bool VuoRendererPort::getOutput(void) const
{
    return isOutput;
}
 
bool VuoRendererPort::getRefreshPort(void) const
{
    return isRefreshPort;
}
 
bool VuoRendererPort::getFunctionPort(void) const
{
    return isFunctionPort;
}
 
bool VuoRendererPort::isHiddenRefreshPort(void)
{
    return isRefreshPort && getBase()->getConnectedCables(true).empty();
}
 
bool VuoRendererPort::carriesData(void) const
{
    return (getBase()->getClass()->getPortType() == VuoPortClass::dataAndEventPort ||
            (getBase()->getClass()->hasCompiler() &&
             static_cast<VuoCompilerPortClass *>(getBase()->getClass()->getCompiler())->getDataVuoType()));
}
 
void VuoRendererPort::updateGeometry()
{
    updateCachedPortPath();
    this->prepareGeometryChange();
    updateCachedBoundingRect();
}
 
QVariant VuoRendererPort::itemChange(GraphicsItemChange change, const QVariant &value)
{
    // Port has moved relative to its parent
    if (change == QGraphicsItem::ItemPositionHasChanged)
    {
        VuoRendererNode *parentNode = getRenderedParentNode();
        if (parentNode)
            parentNode->layoutConnectedInputDrawersAtAndAbovePort(this);
    }
 
    return QGraphicsItem::itemChange(change, value);
}
 
VuoType * VuoRendererPort::getDataType(void) const
{
    if (!(getBase() && getBase()->hasCompiler()))
        return NULL;
 
    VuoCompilerPort *compilerPort = static_cast<VuoCompilerPort *>(getBase()->getCompiler());
    return compilerPort->getDataVuoType();
}
 
bool VuoRendererPort::hasURLType() const
{
    // For now, ports with URLs are expected to be of type "VuoText".
    if ( !(getDataType() && getDataType()->getModuleKey() == "VuoText") )
        return false;
 
    string portName = getBase()->getClass()->getName();
 
    // Case: Port is titled "url"
    if (portName == "url")
        return true;
 
    // Case: Port is titled "folder"
    // Relevant for vuo.file.list node.
    if (portName == "folder")
        return true;
 
    // Case: Port is an input port on a drawer attached to a port titled "urls"
    // Relevant for vuo.image.fetch.list, vuo.scene.fetch.list nodes.
    VuoRendererInputDrawer *drawer = dynamic_cast<VuoRendererInputDrawer *>(getRenderedParentNode());
    if (drawer)
    {
        VuoPort *hostPort = drawer->getRenderedHostPort();
        if (hostPort && (hostPort->getClass()->getName() == "urls"))
            return true;
    }
 
    return false;
}
 
bool VuoRendererPort::hasRelativeReadURLConstantValue() const
{
    if ( !(isConstant() && hasURLType()) )
        return false;
 
    json_object *details = static_cast<VuoCompilerInputEventPortClass *>(getBase()->getClass()->getCompiler())->getDataClass()->getDetails();
    json_object *isSaveValue = NULL;
    if (details && json_object_object_get_ex(details, "isSave", &isSaveValue) && json_object_get_boolean(isSaveValue))
        return false;
 
    VuoUrl url = VuoUrl_makeFromString(getConstantAsString().c_str());
    VuoRetain(url);
    bool isRelativePath = VuoUrl_isRelativePath(url);
    VuoRelease(url);
    return isRelativePath;
}
 
bool VuoRendererPort::isConstant(void) const
{
    return ((getInput() && getDataType()) &&                        // input port with data...
            (!effectivelyHasConnectedDataCable(true))); // ... that has no incoming data cable (published or unpublished).
}
 
bool VuoRendererPort::effectivelyHasConnectedDataCable(bool includePublishedCables) const
{
    vector<VuoCable *> connectedCables = getBase()->getConnectedCables(includePublishedCables);
    for (vector<VuoCable *>::iterator cable = connectedCables.begin(); cable != connectedCables.end(); ++cable)
        if ((*cable)->hasRenderer() && (*cable)->getRenderer()->effectivelyCarriesData())
            return true;
    return false;
}
 
string VuoRendererPort::format(const char *format, ...)
{
    va_list args;
 
    va_start(args, format);
    int size = vsnprintf(NULL, 0, format, args);
    va_end(args);
 
    char *formattedString = (char *)malloc(size+1);
    va_start(args, format);
    vsnprintf(formattedString, size+1, format, args);
    va_end(args);
 
    string s(formattedString);
    free(formattedString);
    return s;
}
 
string VuoRendererPort::stringAndFree(char *strz)
{
    string s(strz);
    free(strz);
    return s;
}
 
string VuoRendererPort::getConstantAsString(void) const
{
    if (!(getInput() && getDataType()))
        return "";
 
    VuoCompilerInputEventPort *compilerEventPort = dynamic_cast<VuoCompilerInputEventPort *>(getBase()->getCompiler());
    if (! compilerEventPort)
        return "";
 
    return compilerEventPort->getData()->getInitialValue();
}
 
string VuoRendererPort::getConstantAsTruncatedStringToRender(void) const
{
    VuoText fullString = VuoText_make(getConstantAsStringToRender().c_str());
    VuoLocal(fullString);
 
    if (getDataType() && (getDataType()->getModuleKey() == "VuoColor"))
        return "";
 
    bool truncateFromBeginning = (getDataType() &&
                                  (getDataType()->getModuleKey()=="VuoArtNetInputDevice" ||
                                   getDataType()->getModuleKey()=="VuoArtNetOutputDevice" ||
                                   hasURLType()));
 
    size_t maxLength = strlen("Matches wildcard (not case-sensitive)");
    VuoText t = VuoText_truncateWithEllipsis(fullString, maxLength, truncateFromBeginning?
                                                 VuoTextTruncation_Beginning :
                                                 VuoTextTruncation_End);
    VuoLocal(t);
    return string(t);
}
 
#define RETURN_SHORT_SUMMARY(type)                                           \
    if (getDataType()->getModuleKey() == #type)                              \
    {                                                                        \
        type value = type ## _makeFromString(getConstantAsString().c_str()); \
        type ## _retain(value);                                              \
        string s = stringAndFree(type ## _getShortSummary(value));           \
        type ## _release(value);                                             \
        return s;                                                            \
    }
 
string VuoRendererPort::getConstantAsStringToRender(void) const
{
    if (!(getInput() && getDataType()))
        return "";
 
    if (getDataType())
    {
        // Don't display constant input values for generic ports.
        if (dynamic_cast<VuoGenericType *>(getDataType()))
            return "";
 
        string typeName = getDataType()->getModuleKey();
 
        // Don't display constant input values for list ports.
        if (VuoType::isListTypeName(typeName))
            return "";
 
        // Don't display constant input values for types that don't have input editors.
        if (typeName == "VuoData")
            return "";
 
        if (getDataType()->getModuleKey()=="VuoColor")
        {
            string colorRGBAJsonString = getConstantAsString();
            VuoColor c = VuoColor_makeFromString(colorRGBAJsonString.c_str());
            return stringAndFree(VuoColor_getSummary(c));
        }
        if (getDataType()->getModuleKey()=="VuoBoolean")
            return stringAndFree(VuoBoolean_getSummary(VuoBoolean_makeFromString(getConstantAsString().c_str())));
        if (getDataType()->getModuleKey()=="VuoReal")
        {
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
            double real = json_object_get_double(js);
            json_object_put(js);
 
            if (getBase()->getClass()->hasCompiler() && !dynamic_cast<VuoPublishedPort *>(getBase()))
            {
                json_object *portDetails = static_cast<VuoCompilerEventPortClass *>(getBase()->getClass()->getCompiler())->getDataClass()->getDetails();
                json_object *autoObject = NULL;
                if (json_object_object_get_ex(portDetails, "auto", &autoObject))
                    if (real == json_object_get_double(autoObject))
                        return "Auto";
            }
 
            return getStringForRealValue(real);
        }
        if (getDataType()->getModuleKey()=="VuoInteger")
        {
            // Retrieve the port's JSON details object.
            json_object *details = NULL;
            VuoCompilerInputEventPortClass *portClass = dynamic_cast<VuoCompilerInputEventPortClass *>(getBase()->getClass()->getCompiler());
            if (portClass)
                details = portClass->getDataClass()->getDetails();
 
            // Case: Port type is named enum
            json_object *menuItemsValue = NULL;
            if (details && json_object_object_get_ex(details, "menuItems", &menuItemsValue))
            {
                string portValue = getConstantAsString();
                // Support upgrading a VuoBoolean port to a named enum.
                if (portValue == "false")
                    portValue = "0";
                else if (portValue == "true")
                    portValue = "1";
 
                int len = json_object_array_length(menuItemsValue);
                for (int i = 0; i < len; ++i)
                {
                    json_object *menuItem = json_object_array_get_idx(menuItemsValue, i);
                    if (json_object_is_type(menuItem, json_type_object))
                    {
                        json_object *value = NULL;
                        if (json_object_object_get_ex(menuItem, "value", &value))
                            if ((json_object_is_type(value, json_type_string) && portValue == json_object_get_string(value))
                             || (json_object_is_type(value, json_type_int   ) && atol(portValue.c_str()) == json_object_get_int64(value)))
                            {
                                json_object *name = NULL;
                                if (json_object_object_get_ex(menuItem, "name", &name))
                                {
                                    VuoText t = VuoText_makeFromJson(name);
                                    VuoLocal(t);
                                    VuoText tr = VuoText_trim(t);  // Trim off leading indentation, if any.
                                    VuoLocal(tr);
                                    return string(tr);
                                }
                            }
                    }
                }
            }
 
            // Case: Port type is a regular VuoInteger
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
            VuoInteger i = json_object_get_int64(js);
            json_object_put(js);
 
            if (getBase()->getClass()->hasCompiler() && !dynamic_cast<VuoPublishedPort *>(getBase()))
            {
                json_object *portDetails = static_cast<VuoCompilerEventPortClass *>(getBase()->getClass()->getCompiler())->getDataClass()->getDetails();
                json_object *autoObject = NULL;
                if (json_object_object_get_ex(portDetails, "auto", &autoObject))
                    if (i == json_object_get_int64(autoObject))
                        return "Auto";
            }
 
            return format("%lld", i);
        }
        if (getDataType()->getModuleKey()=="VuoPoint2d")
        {
            VuoPoint2d p = VuoPoint2d_makeFromString(getConstantAsString().c_str());
            QList<float> pointList = QList<float>() << p.x << p.y;
            return getPointStringForCoords(pointList);
        }
        if (getDataType()->getModuleKey()=="VuoPoint3d")
        {
            VuoPoint3d p = VuoPoint3d_makeFromString(getConstantAsString().c_str());
            QList<float> pointList = QList<float>() << p.x << p.y << p.z;
            return getPointStringForCoords(pointList);
        }
        if (getDataType()->getModuleKey()=="VuoPoint4d")
        {
            VuoPoint4d p = VuoPoint4d_makeFromString(getConstantAsString().c_str());
            QList<float> pointList = QList<float>() << p.x << p.y << p.z << p.w;
            return getPointStringForCoords(pointList);
        }
        if (getDataType()->getModuleKey()=="VuoFont")
        {
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
            json_object *o = NULL;
 
            const char *fontName = NULL;
            if (json_object_object_get_ex(js, "fontName", &o))
                fontName = json_object_get_string(o);
 
            double pointSize = 0;
            if (json_object_object_get_ex(js, "pointSize", &o))
                pointSize = json_object_get_double(o);
 
            bool underline = false;
            if (json_object_object_get_ex(js, "underline", &o))
                underline = json_object_get_boolean(o);
            const char *underlineString = underline ? " [U]" : "";
 
            string outputString;
            if (fontName)
                outputString = format("%s %gpt%s", fontName, pointSize, underlineString);
 
            json_object_put(js);
 
            return outputString;
        }
        if (getDataType()->getModuleKey()=="VuoMathExpressionList")
        {
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
            json_object *expressionsObject = NULL;
 
            string expression;
            if (json_object_object_get_ex(js, "expressions", &expressionsObject))
            {
                if (json_object_get_type(expressionsObject) == json_type_array)
                {
                    int itemCount = json_object_array_length(expressionsObject);
                    if (itemCount > 0)
                    {
                        json_object *itemObject = json_object_array_get_idx(expressionsObject, 0);
                        if (json_object_get_type(itemObject) == json_type_string)
                        {
                            expression = json_object_get_string(itemObject);
                            json_object_put(itemObject);
                        }
                    }
                }
            }
 
            json_object_put(js);
 
            return expression;
        }
        if (getDataType()->getModuleKey()=="VuoRealRegulation")
        {
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
            json_object *o = NULL;
 
            string outputString;
            if (json_object_object_get_ex(js, "name", &o))
                outputString = json_object_get_string(o);
 
            json_object_put(js);
 
            return outputString;
        }
        if (getDataType()->getModuleKey()=="VuoImage")
        {
            VuoImage value = VuoImage_makeFromString(getConstantAsString().c_str());
            if (!value)
                return "";
 
            VuoLocal(value);
            return format("%lu×%lu", value->pixelsWide, value->pixelsHigh);
        }
        if (getDataType()->getModuleKey()=="VuoTransform")
        {
            VuoTransform value = VuoTransform_makeFromString(getConstantAsString().c_str());
 
            if (VuoTransform_isIdentity(value))
                return "≡";
 
            if (value.type == VuoTransformTypeTargeted)
                return format("(%g,%g,%g) toward (%g,%g,%g)",
                                      value.translation.x, value.translation.y, value.translation.z, value.rotationSource.target.x, value.rotationSource.target.y, value.rotationSource.target.z);
 
            string rotation;
            if (value.type == VuoTransformTypeQuaternion)
                rotation = format("‹%g,%g,%g,%g›",
                                          value.rotationSource.quaternion.x, value.rotationSource.quaternion.y, value.rotationSource.quaternion.z, value.rotationSource.quaternion.w);
            else
            {
                VuoPoint3d r = VuoPoint3d_multiply(value.rotationSource.euler, 180./M_PI);
                rotation = format("(%g°,%g°,%g°)",
                                          r.x, r.y, r.z);
            }
 
            return format("(%g,%g,%g) %s %g×%g×%g",
                                                 value.translation.x, value.translation.y, value.translation.z, rotation.c_str(), value.scale.x, value.scale.y, value.scale.z);
        }
        if (getDataType()->getModuleKey()=="VuoTransform2d")
        {
            VuoTransform2d value = VuoTransform2d_makeFromString(getConstantAsString().c_str());
 
            if (VuoTransform2d_isIdentity(value))
                return "≡";
 
            VuoReal rotationInDegrees = value.rotation * 180./M_PI;
            return format("(%g,%g) %g° %g×%g",
                                  value.translation.x, value.translation.y, rotationInDegrees, value.scale.x, value.scale.y);
        }
        if (getDataType()->getModuleKey()=="VuoMovieFormat")
        {
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
            json_object *o = NULL;
 
            const char *imageEncoding = NULL;
            if (json_object_object_get_ex(js, "imageEncoding", &o))
            {
                imageEncoding = json_object_get_string(o);
                if (strcasecmp(imageEncoding, "jpeg") == 0)
                    imageEncoding = "JPEG";
                else if (strcasecmp(imageEncoding, "h264") == 0)
                    imageEncoding = "H.264";
                else if (strcasecmp(imageEncoding, "prores4444") == 0)
                    imageEncoding = "ProRes 4444";
                else if (strcasecmp(imageEncoding, "prores422") == 0)
                    imageEncoding = "ProRes 422";
                else if (strcasecmp(imageEncoding, "prores422-hq") == 0)
                    imageEncoding = "ProRes 422 HQ";
                else if (strcasecmp(imageEncoding, "prores422-lt") == 0)
                    imageEncoding = "ProRes 422 LT";
                else if (strcasecmp(imageEncoding, "prores422-proxy") == 0)
                    imageEncoding = "ProRes 422 Proxy";
                else if (strcmp(imageEncoding, "hevc") == 0)
                    imageEncoding = "HEVC";
                else if (strcmp(imageEncoding, "hevc-alpha") == 0)
                    imageEncoding = "HEVC+Alpha";
            }
 
            const char *audioEncoding = NULL;
            if (json_object_object_get_ex(js, "audioEncoding", &o))
            {
                audioEncoding = json_object_get_string(o);
                if (strcmp(audioEncoding, "LinearPCM") == 0)
                    audioEncoding = "Linear PCM";
            }
 
            string outputString;
            if (imageEncoding && audioEncoding)
                outputString = format("%s, %s", imageEncoding, audioEncoding);
 
            json_object_put(js);
 
            return outputString;
        }
        if (getDataType()->getModuleKey()=="VuoScreen")
        {
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
            json_object *o = NULL;
 
            string label;
            if (json_object_object_get_ex(js, "type", &o))
            {
                VuoScreenType type = VuoScreen_typeFromCString(json_object_get_string(o));
 
                if (type == VuoScreenType_Active)
                    label = "Active";
                else if (type == VuoScreenType_Primary)
                    label = "Primary";
                else if (type == VuoScreenType_Secondary)
                    label = "Secondary";
                else if (type == VuoScreenType_MatchName)
                {
                    if (json_object_object_get_ex(js, "name", &o))
                        label = json_object_get_string(o);
                }
                else if (type == VuoScreenType_MatchId)
                {
                    VuoScreen screen = VuoScreen_makeFromJson(js);
                    VuoScreen realizedScreen;
                    if (VuoScreen_realize(screen, &realizedScreen))
                        label = realizedScreen.name;
                }
            }
            json_object_put(js);
 
            return label;
        }
        if (getDataType()->getModuleKey()=="VuoSerialDevice")
        {
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
            json_object *o = NULL;
 
            const char *name = NULL;
            if (json_object_object_get_ex(js, "name", &o))
                name = json_object_get_string(o);
            else if (json_object_object_get_ex(js, "path", &o))
                name = json_object_get_string(o);
 
            string outputString = "First";
            if (name && strlen(name))
                outputString = name;
 
            json_object_put(js);
 
            return outputString;
        }
        if (getDataType()->getModuleKey()=="VuoMidiInputDevice")
        {
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
            json_object *o = NULL;
 
            const char *name = NULL;
            if (json_object_object_get_ex(js, "name", &o))
                name = json_object_get_string(o);
 
            string outputString = "First";
            if (name && strlen(name))
                outputString = name;
 
            json_object_put(js);
 
            return outputString;
        }
        if (getDataType()->getModuleKey()=="VuoMidiOutputDevice")
        {
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
            json_object *o = NULL;
 
            const char *name = NULL;
            if (json_object_object_get_ex(js, "name", &o))
                name = json_object_get_string(o);
 
            string outputString = "First";
            if (name && strlen(name))
                outputString = name;
 
            json_object_put(js);
 
            return outputString;
        }
        if (getDataType()->getModuleKey()=="VuoSyphonServerDescription")
        {
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
            json_object *o = NULL;
 
            const char *name = NULL;
            if (json_object_object_get_ex(js, "serverName", &o))
            {
                const char *n = json_object_get_string(o);
                if (strcmp(n, "*"))
                    name = n;
            }
            if (!name && json_object_object_get_ex(js, "applicationName", &o))
            {
                const char *n = json_object_get_string(o);
                if (strcmp(n, "*"))
                    name = n;
            }
 
            string outputString = "First";
            if (name && strlen(name))
                outputString = name;
 
            json_object_put(js);
 
            return outputString;
        }
        if (getDataType()->getModuleKey()=="VuoVideoInputDevice")
        {
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
            json_object *o = NULL;
 
            const char *name = NULL;
            if (json_object_object_get_ex(js, "name", &o))
                name = json_object_get_string(o);
            else if (json_object_object_get_ex(js, "id", &o))
                name = json_object_get_string(o);
 
            string outputString = "Default";
            if (name && strlen(name))
                outputString = name;
 
            json_object_put(js);
 
            return outputString;
        }
        RETURN_SHORT_SUMMARY(VuoAudioInputDevice);
        RETURN_SHORT_SUMMARY(VuoAudioOutputDevice);
        if (getDataType()->getModuleKey()=="VuoHidDevice")
        {
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
            json_object *o = NULL;
 
            QString outputString;
            if (json_object_object_get_ex(js, "name", &o))
            {
                outputString = json_object_get_string(o);
 
                // Trim off the parenthetical vendor/class.
                outputString = outputString.section(" (", 0, 0);
            }
            json_object_put(js);
 
            return outputString.toStdString();
        }
        if (getDataType()->getModuleKey()=="VuoOscInputDevice"
         || getDataType()->getModuleKey()=="VuoOscOutputDevice")
        {
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
            json_object *o = NULL;
 
            const char *name = NULL;
            if (json_object_object_get_ex(js, "name", &o))
                name = json_object_get_string(o);
 
            string outputString = "Auto";
            if (name && strlen(name))
                outputString = name;
 
            json_object_put(js);
 
            return outputString;
        }
        if (getDataType()->getModuleKey()=="VuoArtNetInputDevice"
         || getDataType()->getModuleKey()=="VuoArtNetOutputDevice")
        {
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
            json_object *o = NULL;
 
            const char *name = NULL;
            if (json_object_object_get_ex(js, "name", &o))
                name = json_object_get_string(o);
            else
            {
                if (getDataType()->getModuleKey()=="VuoArtNetInputDevice")
                    name = "Any";
                else
                    name = "Broadcast";
            }
 
            VuoInteger net=0, subNet=0, universe=0;
            if (json_object_object_get_ex(js, "net", &o))
                net = json_object_get_int64(o);
            if (json_object_object_get_ex(js, "subNet", &o))
                subNet = json_object_get_int64(o);
            if (json_object_object_get_ex(js, "universe", &o))
                universe = json_object_get_int64(o);
 
            string outputString = format("%s (%lld:%lld:%lld)", name, net, subNet, universe);
 
            json_object_put(js);
 
            return outputString;
        }
        if (getDataType()->getModuleKey()=="VuoTempoRange")
        {
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
            const char *tempoRange = json_object_get_string(js);
            if (!tempoRange)
                return "Unknown";
            if (strcmp(tempoRange, "andante") == 0)
                return "70–110 BPM";
            else if (strcmp(tempoRange, "moderato") == 0)
                return "100–140 BPM";
            else if (strcmp(tempoRange, "allegro") == 0)
                return "120–180 BPM";
            else if (strcmp(tempoRange, "presto") == 0)
                return "170–250 BPM";
            else if (strcmp(tempoRange, "prestissimo") == 0)
                return "220–320 BPM";
        }
        if (getDataType()->getModuleKey()=="VuoEdgeBlend")
        {
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
 
            double cutoff = 0, gamma = 0, crop = 0;
            json_object *o = NULL;
 
            if (json_object_object_get_ex(js, "cutoff", &o))
                cutoff = json_object_get_double(o);
 
            if (json_object_object_get_ex(js, "gamma", &o))
                gamma = json_object_get_double(o);
 
            if (json_object_object_get_ex(js, "crop", &o))
                crop = json_object_get_double(o);
 
            json_object_put(js);
 
            double cropPercent = -crop * 100;
            double cutoffPercent = cutoff * 100;
            if (VuoReal_areEqual(crop, 0) && VuoReal_areEqual(cutoff, 0))
                return "≡";
            else if (VuoReal_areEqual(cutoff, 0))
                return format("%.0f%%", cropPercent);
            else if (VuoReal_areEqual(gamma, 1))
                return format("%.0f%% %.0f%%", cropPercent, cutoffPercent);
            else
                return format("%.0f%% %.0f%% @ %.2gγ", cropPercent, cutoffPercent, gamma);
        }
        if (getDataType()->getModuleKey()=="VuoRange")
        {
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
 
            double minimum = VuoRange_NoMinimum, maximum = VuoRange_NoMaximum;
 
            json_object *o = NULL;
 
            if (json_object_object_get_ex(js, "minimum", &o))
                minimum = json_object_get_double(o);
 
            if (json_object_object_get_ex(js, "maximum", &o))
                maximum = json_object_get_double(o);
 
            json_object_put(js);
 
            if (minimum != VuoRange_NoMinimum && maximum != VuoRange_NoMaximum)
                return format("%.4g to %.4g", minimum, maximum);
            else if (minimum != VuoRange_NoMinimum)
                return format("%.4g to ∞", minimum);
            else if (maximum != VuoRange_NoMaximum)
                return format("-∞ to %.4g", maximum);
            else
                return format("-∞ to ∞");
        }
        if (getDataType()->getModuleKey()=="VuoIntegerRange")
        {
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
 
            VuoInteger minimum = VuoIntegerRange_NoMinimum, maximum = VuoIntegerRange_NoMaximum;
 
            json_object *o = NULL;
 
            if (json_object_object_get_ex(js, "minimum", &o))
                minimum = json_object_get_int64(o);
 
            if (json_object_object_get_ex(js, "maximum", &o))
                maximum = json_object_get_int64(o);
 
            json_object_put(js);
 
            if (minimum != VuoIntegerRange_NoMinimum && maximum != VuoIntegerRange_NoMaximum)
                return format("%lld to %lld", minimum, maximum);
            else if (minimum != VuoIntegerRange_NoMinimum)
                return format("%lld to ∞", minimum);
            else if (maximum != VuoIntegerRange_NoMaximum)
                return format("-∞ to %lld", maximum);
            else
                return format("-∞ to ∞");
        }
        if (getDataType()->getModuleKey() == "VuoAnchor")
        {
            VuoAnchor value = VuoAnchor_makeFromString(getConstantAsString().c_str());
            return stringAndFree(VuoAnchor_getSummary(value));
        }
        if (getDataType()->getModuleKey() == "VuoTextComparison")
        {
            VuoTextComparison value = VuoTextComparison_makeFromString(getConstantAsString().c_str());
            return stringAndFree(VuoTextComparison_getSummary(value));
        }
        if (getDataType()->getModuleKey() == "VuoBlackmagicInputDevice"
         || getDataType()->getModuleKey() == "VuoBlackmagicOutputDevice")
        {
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
            json_object *o;
            if (json_object_object_get_ex(js, "name", &o))
                return json_object_get_string(o);
            else
                return "First";
        }
        if (getDataType()->getModuleKey() == "VuoSpeechVoice")
        {
            VuoSpeechVoice value = VuoSpeechVoice_makeFromString(getConstantAsString().c_str());
            return stringAndFree(VuoSpeechVoice_getSummary(value));
        }
        if (getDataType()->getModuleKey() == "VuoRectangle")
        {
            VuoRectangle value = VuoRectangle_makeFromString(getConstantAsString().c_str());
            return stringAndFree(VuoRectangle_getSummary(value));
        }
        if (getDataType()->getModuleKey() == "VuoNdiSource")
        {
            json_object *js = json_tokener_parse(getConstantAsString().c_str());
            json_object *o, *o2;
            if (json_object_object_get_ex(js, "name", &o))
                return json_object_get_string(o);
            else if (json_object_object_get_ex(js, "ipAddress", &o)
                  && json_object_object_get_ex(js, "port", &o2))
                return format("%s:%lld", json_object_get_string(o), json_object_get_int(o2));
            else if (json_object_object_get_ex(js, "ipAddress", &o))
                return json_object_get_string(o);
            else
                return "First";
        }
    }
 
    // If it's a JSON string (e.g., VuoText or an enum identifier), unescape and optionally capitalize it.
    json_object *js = json_tokener_parse(getConstantAsString().c_str());
    if (json_object_get_type(js) == json_type_string)
    {
        string textWithoutQuotes = json_object_get_string(js);
        json_object_put(js);
 
        // Show linebreaks as a glyph (rather than causing the following text to move to the next line, which gets cut off).
        VuoStringUtilities::replaceAll(textWithoutQuotes, "\n", "⏎");
 
        string type;
        if (getDataType())
            type = getDataType()->getModuleKey();
 
        // Leave text as-is.
        if (type == "VuoText"
         || type == "VuoImageFormat"
         || type == "VuoAudioEncoding"
         || type == "VuoBlackmagicConnection"
         || type == "VuoBlackmagicVideoMode"
         || type == "VuoMovieImageEncoding")
            return textWithoutQuotes;
 
        // All-caps.
        if (type == "VuoTableFormat")
        {
            std::transform(textWithoutQuotes.begin(), textWithoutQuotes.end(), textWithoutQuotes.begin(), ::toupper);
            return textWithoutQuotes;
        }
 
        // Convert hyphenations to camelcase.
        // Example: VuoTimeFormat
        for (auto it = textWithoutQuotes.begin(); it != textWithoutQuotes.end();)
            if (*it == '-')
            {
                textWithoutQuotes.erase(it);
                *it = toupper(*it);
            }
            else
                ++it;
 
        return VuoStringUtilities::expandCamelCase(textWithoutQuotes);
    }
    json_object_put(js);
 
    return getConstantAsString();
}
 
void VuoRendererPort::setConstant(string constantValue)
{
    VuoCompilerInputEventPort *eventPort = dynamic_cast<VuoCompilerInputEventPort *>(getBase()->getCompiler());
    if (eventPort)
    {
        QGraphicsItem::CacheMode normalCacheMode = cacheMode();
        setCacheMode(QGraphicsItem::NoCache);
        updateGeometry();
 
        eventPort->getData()->setInitialValue(constantValue);
 
        if (getConstantAsStringToRender() != getConstantAsTruncatedStringToRender())
            setToolTip(QString("<span></span>") + getConstantAsStringToRender().c_str());
        else
            setToolTip("");
 
        setCacheMode(normalCacheMode);
        updateCachedPortPath();
        updateCachedBoundingRect();
        getRenderedParentNode()->layoutConnectedInputDrawersAtAndAbovePort(eventPort->getBase()->getRenderer());
 
        // Ensure this node's cable paths are updated to escape the new constant's flag.
        set<VuoCable *> cables = getRenderedParentNode()->getConnectedInputCables(true);
        for (set<VuoCable *>::iterator i = cables.begin(); i != cables.end(); ++i)
        {
            (*i)->getRenderer()->setPortConstantsChanged();
            (*i)->getRenderer()->updateGeometry();
        }
    }
}
 
bool VuoRendererPort::portNameRenderingEnabled() const
{
    bool sidebarPaintMode = dynamic_cast<const VuoRendererPublishedPort *>(this);
    string name = getPortNameToRender();
    VuoRendererNode *parent = getRenderedParentNode();
 
    if (name.empty() || isAnimated)
        return false;
    else if (parent && parent->isMissingImplementation())
        return false;
    else if (sidebarPaintMode)
        return true;
    else if (isRefreshPort || isFunctionPort || typecastParentPort)
        return false;
 
    return true;
}
 
string VuoRendererPort::getPointStringForCoords(QList<float> coordList) const
{
    const QString coordSeparator = QString(QLocale::system().decimalPoint() != ','? QChar(',') : QChar(';')).append(" ");
    QStringList coordStringList;
 
    foreach (float coord, coordList)
        coordStringList.append(getStringForRealValue(coord).c_str());
 
    QString pointString = QString("(").append(coordStringList.join(coordSeparator).append(")"));
    return pointString.toStdString();
}
 
string VuoRendererPort::getStringForRealValue(double value) const
{
    // See VuoDoubleSpinBox::textFromValue.
    QString valueAsStringInUserLocale = QLocale::system().toString(value, 'g', 11);
    if (qAbs(value) >= 1000.0)
        valueAsStringInUserLocale.remove(QLocale::system().groupSeparator());
 
    return valueAsStringInUserLocale.toStdString();
}
 
string VuoRendererPort::getStringForRealValue(float value) const
{
    // Like the `double` version, but reduced to 7 so we don't display bogus precision when rendering VuoPoint*d (whose components are `float`, not `double` like VuoReal).
    QString valueAsStringInUserLocale = QLocale::system().toString(value, 'g', 7);
    if (qAbs(value) >= 1000.0)
        valueAsStringInUserLocale.remove(QLocale::system().groupSeparator());
 
    return valueAsStringInUserLocale.toStdString();
}
 
bool VuoRendererPort::getPublishable() const
{
    // @todo: Allow generic published ports (https://b33p.net/kosada/node/7655).
    bool isGeneric = bool(dynamic_cast<VuoGenericType *>(this->getDataType()));
 
    // @todo: Allow published dictionary ports (https://b33p.net/kosada/node/8524).
    bool hasDictionaryType = (this->getDataType() && VuoStringUtilities::beginsWith(this->getDataType()->getModuleKey(), "VuoDictionary_"));
 
    // @todo: Allow published math expression ports for "Calculate" nodes (https://b33p.net/kosada/node/8550).
    bool isMathExpressionInputToCalculateNode = (this->getDataType() &&
                                                 (this->getDataType()->getModuleKey() == "VuoMathExpressionList") &&
                                                 this->getUnderlyingParentNode() &&
                                                 VuoStringUtilities::beginsWith(this->getUnderlyingParentNode()->getBase()->getNodeClass()->getClassName(), "vuo.math.calculate"));
 
 
    // @todo: Allow direct connections between external published inputs and external published outputs
    // (https://b33p.net/kosada/node/7756).
    return (!isGeneric && !hasDictionaryType && !isMathExpressionInputToCalculateNode && !dynamic_cast<const VuoRendererPublishedPort *>(this));
}
 
vector<VuoRendererPublishedPort *> VuoRendererPort::getPublishedPorts(void) const
{
    vector <VuoRendererPublishedPort *> publishedPorts;
    foreach (VuoCable *cable, getBase()->getConnectedCables(true))
    {
        if (getInput() && cable->isPublishedInputCable())
            publishedPorts.push_back(dynamic_cast<VuoRendererPublishedPort *>(cable->getFromPort()->getRenderer()));
        else if (getOutput() && cable->isPublishedOutputCable())
            publishedPorts.push_back(dynamic_cast<VuoRendererPublishedPort *>(cable->getToPort()->getRenderer()));
    }
 
    return publishedPorts;
}
 
vector<VuoRendererPublishedPort *> VuoRendererPort::getPublishedPortsConnectedByDataCarryingCables(void) const
{
    vector <VuoRendererPublishedPort *> publishedPorts;
    foreach (VuoCable *cable, getBase()->getConnectedCables(true))
    {
        if (getInput() && cable->isPublishedInputCable() && cable->getRenderer()->effectivelyCarriesData())
            publishedPorts.push_back(dynamic_cast<VuoRendererPublishedPort *>(cable->getFromPort()->getRenderer()));
        else if (getOutput() && cable->isPublishedOutputCable() && cable->getRenderer()->effectivelyCarriesData())
            publishedPorts.push_back(dynamic_cast<VuoRendererPublishedPort *>(cable->getToPort()->getRenderer()));
    }
 
    return publishedPorts;
}
 
void VuoRendererPort::resetTimeLastEventFired()
{
    this->timeLastEventFired = VuoRendererColors::getVirtualFiredEventOrigin();
}
 
void VuoRendererPort::setFiredEvent()
{
    this->timeLastEventFired = QDateTime::currentMSecsSinceEpoch();
}
 
void VuoRendererPort::setFadePercentageSinceEventFired(qreal percentage)
{
    this->timeLastEventFired = VuoRendererColors::getVirtualFiredEventOriginForAnimationFadePercentage(percentage);
}
 
vector<QGraphicsItemAnimation *> VuoRendererPort::getAnimations()
{
    return this->animations;
}
 
void VuoRendererPort::setAnimated(bool animated)
{
    this->isAnimated = animated;
    updateEnabledStatus();
}
 
void VuoRendererPort::setCacheModeForPortAndChildren(QGraphicsItem::CacheMode mode)
{
    this->setCacheMode(mode);
 
    VuoRendererTypecastPort *typecastPort = dynamic_cast<VuoRendererTypecastPort *>(this);
    if (typecastPort)
        typecastPort->getChildPort()->setCacheMode(mode);
}
 
void VuoRendererPort::updateEnabledStatus()
{
    // Port animations, and ports without compilers, shouldn't accept mouse events.
    setEnabled(!isAnimated &&
               ((getBase()->hasCompiler() && getBase()->getClass()->hasCompiler()) ||
                dynamic_cast<VuoRendererPublishedPort *>(this)) &&
               !isHiddenRefreshPort());
}
 
QString VuoRendererPort::getPortIdentifierRegExp()
{
    // A published port name must:
    // - Contain only alphanumeric characters; and
    // - Either be entirely numeric or begin with an alphabetic character; and
    // - Have a total length of 1-31 characters.
    return QString("[A-Za-z][A-Za-z0-9]{0,30}")
            .append("|")
            .append("[0-9]{1,31}");
}
 
QString VuoRendererPort::sanitizePortIdentifier(QString portID)
{
    // Remove non-alphanumeric characters.
    portID.remove(QRegExp("[^A-Za-z0-9]"));
 
    // Unless the identifier is purely numeric, remove non-alphabetic first characters.
    if (!portID.contains(QRegExp("^[0-9]+$")))
    {
        while (!portID.isEmpty() && !portID.contains(QRegExp("^[A-Za-z]")))
            portID = portID.right(portID.size()-1);
    }
 
    // Remove characters beyond the 31st.
    portID = portID.left(31);
 
    return portID;
}
 
VuoRendererPort::~VuoRendererPort()
{
    foreach (QGraphicsItemAnimation *animation, animations)
        animation->clear();
 
    animations.clear();
}