VuoInputEditorPoint2d.cc

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#include "VuoInputEditorPoint2d.hh"
 
VuoInputEditor * VuoInputEditorPoint2dFactory::newInputEditor()
{
    return new VuoInputEditorPoint2d();
}
 
QLabel* makeLabel(const char* text)
{
    QLabel* label = new QLabel(text);
    label->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Maximum);
    return label;
}
 
VuoDoubleSpinBox* VuoInputEditorPoint2d::initSpinBox(coord whichCoord, QDialog& dialog, double initialValue)
{
    VuoDoubleSpinBox* spin = new VuoDoubleSpinBox(&dialog, 7);
    const int decimalPrecision = FLT_MAX_10_EXP + FLT_DIG;
    spin->setDecimals(decimalPrecision);
    spin->setFixedWidth(100);
    spin->setButtonMinimum(suggestedMinForCoord[whichCoord]);
    spin->setButtonMaximum(suggestedMaxForCoord[whichCoord]);
    spin->setSingleStep(suggestedStepForCoord[whichCoord]);
    spin->setValue(initialValue);
    return spin;
}
 
QSlider* VuoInputEditorPoint2d::initSlider(coord whichCoord, QDialog& dialog, double initialValue)
{
    double min = suggestedMinForCoord[whichCoord];
    double max = suggestedMaxForCoord[whichCoord];
    double step = suggestedStepForCoord[whichCoord];
    double range = max - min;
 
    QSlider* slider = new QSlider(&dialog);
    slider->setOrientation(Qt::Horizontal);
    slider->setFocusPolicy(Qt::NoFocus);
    slider->setMinimum(0);
    slider->setMaximum(slider->width());
    slider->setSingleStep( fmax(1, step * (slider->maximum() - slider->minimum()) / range ) );
    slider->setValue( VuoDoubleSpinBox::doubleToSlider(slider->minimum(), slider->maximum(), min, max, initialValue) );
    return slider;
}
 
void VuoInputEditorPoint2d::setUpDialog(QDialog &dialog, json_object *originalValue, json_object *details)
{
    current = VuoPoint2d_makeFromJson(originalValue);
 
    const double max_dbl = std::numeric_limits<double>::max();
 
    VuoPoint2d suggestedMin = VuoPoint2d_make(-max_dbl, -max_dbl);
    VuoPoint2d suggestedMax = VuoPoint2d_make( max_dbl,  max_dbl);
    VuoPoint2d suggestedStep = VuoPoint2d_make(1.0, 1.0);
 
    bool hasMinMax = true;
    bool tabCycleForward = true;
 
    // Parse supported port annotations from the port's "details" JSON object:
    if (details)
    {
        json_object *forwardTabTraversal = NULL;
        if (json_object_object_get_ex(details, "forwardTabTraversal", &forwardTabTraversal))
            tabCycleForward = json_object_get_boolean(forwardTabTraversal);
 
        // "suggestedMin"
        json_object *suggestedMinValue = NULL;
        if (json_object_object_get_ex(details, "suggestedMin", &suggestedMinValue))
            suggestedMin = VuoPoint2d_makeFromJson(suggestedMinValue);
        else
            hasMinMax = false;
 
        // "suggestedMax"
        json_object *suggestedMaxValue = NULL;
        if (json_object_object_get_ex(details, "suggestedMax", &suggestedMaxValue))
            suggestedMax = VuoPoint2d_makeFromJson(suggestedMaxValue);
        else
            hasMinMax = false;
 
        // "suggestedStep"
        if (hasMinMax)
            suggestedStep = VuoPoint2d_make((suggestedMax.x - suggestedMin.x)/10.,
                                            (suggestedMax.y - suggestedMin.y)/10.);
        json_object *suggestedStepValue = NULL;
        if (json_object_object_get_ex(details, "suggestedStep", &suggestedStepValue))
            suggestedStep = VuoPoint2d_makeFromJson(suggestedStepValue);
    }
 
    suggestedMinForCoord[coord_x] = suggestedMin.x;
    suggestedMinForCoord[coord_y] = suggestedMin.y;
    suggestedMaxForCoord[coord_x] = suggestedMax.x;
    suggestedMaxForCoord[coord_y] = suggestedMax.y;
    suggestedStepForCoord[coord_x] = suggestedStep.x;
    suggestedStepForCoord[coord_y] = suggestedStep.y;
 
    spinboxForCoord[coord_x] = initSpinBox(coord_x, dialog, current.x);
    spinboxForCoord[coord_y] = initSpinBox(coord_y, dialog, current.y);
    connect(spinboxForCoord[coord_x], static_cast<void (QDoubleSpinBox::*)(const QString &)>(&QDoubleSpinBox::valueChanged), this, &VuoInputEditorPoint2d::onSpinboxUpdate);
    connect(spinboxForCoord[coord_y], static_cast<void (QDoubleSpinBox::*)(const QString &)>(&QDoubleSpinBox::valueChanged), this, &VuoInputEditorPoint2d::onSpinboxUpdate);
 
    if(hasMinMax)
    {
        sliderForCoord[coord_x] = initSlider(coord_x, dialog, current.x);
        sliderForCoord[coord_y] = initSlider(coord_y, dialog, current.y);
        connect(sliderForCoord[coord_x], &QSlider::valueChanged, this, &VuoInputEditorPoint2d::onSliderUpdate);
        connect(sliderForCoord[coord_y], &QSlider::valueChanged, this, &VuoInputEditorPoint2d::onSliderUpdate);
    }
 
    // layout dialog
    QGridLayout* layout = new QGridLayout;
    dialog.setLayout(layout);
 
    // left, top, right, bottom
    // when showing sliders, add a little extra margin on the bottom since QSlider takes up the
    // entire vertical spacing
    layout->setContentsMargins(4, 4, 16, 4);
    layout->setSpacing(4);
 
    int row = 0;
 
    layout->addWidget(makeLabel("X"), row, 0, Qt::AlignHCenter);
    layout->addWidget(spinboxForCoord[coord_x], row++, 1);
    if(hasMinMax) layout->addWidget(sliderForCoord[coord_x], row++, 1);
 
    layout->addWidget(makeLabel("Y"), row, 0, Qt::AlignHCenter);
    layout->addWidget(spinboxForCoord[coord_y], row++, 1);
    if(hasMinMax) layout->addWidget(sliderForCoord[coord_y], row++, 1);
 
    dialog.setMaximumWidth(1);
    dialog.setMaximumHeight(1);
 
    dialog.adjustSize();
 
    // Layout details
    setFirstWidgetInTabOrder(spinboxForCoord[coord_x]);
    setLastWidgetInTabOrder(spinboxForCoord[coord_y]);
 
    // Return focus to the topmost line edit by default, or to the bottommost
    // line edit if tab-cycling backwards.
    // To be handled properly for https://b33p.net/kosada/node/6365 .
    (tabCycleForward ? spinboxForCoord[coord_x] : spinboxForCoord[coord_y])->setFocus();
    (tabCycleForward ? spinboxForCoord[coord_x] : spinboxForCoord[coord_y])->selectAll();
}
 
bool VuoInputEditorPoint2d::getCoordFromQObject(QObject* sender, VuoInputEditorPoint2d::coord* whichCoord)
{
    if(sender == spinboxForCoord[coord_x] || sender == sliderForCoord[coord_x])
        *whichCoord = coord_x;
    else if(sender == spinboxForCoord[coord_y] || sender == sliderForCoord[coord_y])
        *whichCoord = coord_y;
    else
        return false;
 
    return true;
}
 
void VuoInputEditorPoint2d::setCoord(coord c, double value)
{
    if(c == coord_x)
        current.x = value;
    else if(c == coord_y)
        current.y = value;
}
 
void VuoInputEditorPoint2d::onSliderUpdate(int sliderValue)
{
    coord whichCoord;
 
    if(!getCoordFromQObject(QObject::sender(), &whichCoord))
        return;
 
    QSlider *targetSlider = sliderForCoord[whichCoord];
 
    double value = VuoDoubleSpinBox::sliderToDouble(targetSlider->minimum(),
                                                    targetSlider->maximum(),
                                                    suggestedMinForCoord[whichCoord],
                                                    suggestedMaxForCoord[whichCoord],
                                                    sliderValue);
    setCoord(whichCoord, value);
 
    // disconnect before setting spinbox value otherwise onSpinboxUpdate is called and the whole thing just cycles
    disconnect(spinboxForCoord[whichCoord], static_cast<void (QDoubleSpinBox::*)(const QString &)>(&QDoubleSpinBox::valueChanged), this, &VuoInputEditorPoint2d::onSpinboxUpdate);
    spinboxForCoord[whichCoord]->setValue( value );
    connect(spinboxForCoord[whichCoord], static_cast<void (QDoubleSpinBox::*)(const QString &)>(&QDoubleSpinBox::valueChanged), this, &VuoInputEditorPoint2d::onSpinboxUpdate);
 
    spinboxForCoord[whichCoord]->setFocus();
    spinboxForCoord[whichCoord]->selectAll();
 
    emit valueChanged( getAcceptedValue() );
}
 
void VuoInputEditorPoint2d::onSpinboxUpdate(QString spinboxValue)
{
    coord whichCoord;
 
    if(!getCoordFromQObject(QObject::sender(), &whichCoord))
        return;
 
    double value = QLocale().toDouble(spinboxValue);
    setCoord(whichCoord, value);
 
    QSlider *targetSlider = sliderForCoord[whichCoord];
 
    if(targetSlider != NULL)
    {
        int sliderValue = VuoDoubleSpinBox::doubleToSlider(targetSlider->minimum(), targetSlider->maximum(), suggestedMinForCoord[whichCoord], suggestedMaxForCoord[whichCoord], value);
        disconnect(targetSlider, &QSlider::valueChanged, this, &VuoInputEditorPoint2d::onSliderUpdate);
        targetSlider->setValue( sliderValue );
        connect(targetSlider, &QSlider::valueChanged, this, &VuoInputEditorPoint2d::onSliderUpdate);
    }
 
    emitValueChanged();
}
 
json_object * VuoInputEditorPoint2d::getAcceptedValue(void)
{
    return VuoPoint2d_getJson(current);
}
 
void VuoInputEditorPoint2d::emitValueChanged()
{
    emit valueChanged(getAcceptedValue());
}