VuoInputEditorTransform2d.cc

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#include "VuoInputEditorTransform2d.hh"
 
extern "C"
{
    #include "VuoTransform2d.h"
    #include "VuoReal.h"
}
 
#define DEG2RAD 0.0174532925f                                                           
#define RAD2DEG 57.295779513f                                                           
 
VuoInputEditor * VuoInputEditorTransform2dFactory::newInputEditor()
{
    return new VuoInputEditorTransform2d();
}
 
QLabel* makeLabel(const char* text)
{
    QLabel* label = new QLabel(text);
    label->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Maximum);
    return label;
}
 
void VuoInputEditorTransform2d::setCoordMap(map<coord, double>* coordMap, VuoTransform2d transform)
{
    (*coordMap)[xTranslation] = transform.translation.x;
    (*coordMap)[yTranslation] = transform.translation.y;
    (*coordMap)[rotation] = RAD2DEG * transform.rotation;
    (*coordMap)[xScale] = transform.scale.x;
    (*coordMap)[yScale] = transform.scale.y;
}
 
VuoDoubleSpinBox* VuoInputEditorTransform2d::initSpinBox(coord whichCoord, QDialog& dialog, double initialValue)
{
    VuoDoubleSpinBox* spin = new VuoDoubleSpinBox(&dialog, 7);
    const int decimalPrecision = DBL_MAX_10_EXP + DBL_DIG;
    spin->setDecimals(decimalPrecision);
    spin->setButtonMinimum(suggestedMinForCoord[whichCoord]);
    spin->setButtonMaximum(suggestedMaxForCoord[whichCoord]);
    spin->setSingleStep(suggestedStepForCoord[whichCoord]);
    spin->setValue(initialValue);
    spin->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Maximum);
 
    return spin;
}
 
QSlider* VuoInputEditorTransform2d::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->setAttribute(Qt::WA_MacSmallSize);
    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 VuoInputEditorTransform2d::setUpDialog(QDialog& dialog, json_object *originalValue, json_object *details)
{
    currentTransform = VuoTransform2d_makeFromJson(originalValue);
 
    bool tabCycleForward = true;
 
    VuoTransform2d default_min = VuoTransform2d_make( VuoPoint2d_make(-1, -.75), -180. * DEG2RAD, VuoPoint2d_make(0,0));
    VuoTransform2d default_max = VuoTransform2d_make( VuoPoint2d_make(1, .75), 180. * DEG2RAD, VuoPoint2d_make(2,2));
    VuoTransform2d default_step = VuoTransform2d_make( VuoPoint2d_make(.01, .01), 5. * DEG2RAD, VuoPoint2d_make(.01,.01));
 
    setCoordMap(&suggestedMinForCoord, default_min);
    setCoordMap(&suggestedMaxForCoord, default_max);
    setCoordMap(&suggestedStepForCoord, default_step);
 
    // 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))
        {
            VuoTransform2d minTransform = VuoTransform2d_makeFromJson(suggestedMinValue);
            setCoordMap(&suggestedMinForCoord, minTransform);
        }
 
        // "suggestedMax"
        json_object *suggestedMaxValue = NULL;
        if (json_object_object_get_ex(details, "suggestedMax", &suggestedMaxValue))
        {
            VuoTransform2d maxTransform = VuoTransform2d_makeFromJson(suggestedMaxValue);
            setCoordMap(&suggestedMaxForCoord, maxTransform);
        }
 
        // "suggestedStep"
        json_object *suggestedStepValue = NULL;
        if (json_object_object_get_ex(details, "suggestedStep", &suggestedStepValue))
        {
            VuoTransform2d stepTransform = VuoTransform2d_makeFromJson(suggestedStepValue);
            setCoordMap(&suggestedStepForCoord, stepTransform);
        }
    }
 
    // x-translation
    spinboxForCoord[xTranslation] = initSpinBox(xTranslation, dialog, currentTransform.translation.x);
    sliderForCoord[xTranslation] = initSlider(xTranslation, dialog, currentTransform.translation.x);
    connect(sliderForCoord[xTranslation], &QSlider::valueChanged, this, &VuoInputEditorTransform2d::onSliderUpdate);
    connect(spinboxForCoord[xTranslation], static_cast<void (QDoubleSpinBox::*)(const QString &)>(&QDoubleSpinBox::valueChanged), this, &VuoInputEditorTransform2d::onSpinboxUpdate);
 
    // y-translation
    spinboxForCoord[yTranslation] = initSpinBox(yTranslation, dialog, currentTransform.translation.y);
    sliderForCoord[yTranslation] = initSlider(yTranslation, dialog, currentTransform.translation.y);
    connect(sliderForCoord[yTranslation], &QSlider::valueChanged, this, &VuoInputEditorTransform2d::onSliderUpdate);
    connect(spinboxForCoord[yTranslation], static_cast<void (QDoubleSpinBox::*)(const QString &)>(&QDoubleSpinBox::valueChanged), this, &VuoInputEditorTransform2d::onSpinboxUpdate);
 
    // rotation
    spinboxForCoord[rotation] = initSpinBox(rotation, dialog, currentTransform.rotation * RAD2DEG);
    sliderForCoord[rotation] = initSlider(rotation, dialog, currentTransform.rotation * RAD2DEG);
    connect(sliderForCoord[rotation], &QSlider::valueChanged, this, &VuoInputEditorTransform2d::onSliderUpdate);
    connect(spinboxForCoord[rotation], static_cast<void (QDoubleSpinBox::*)(const QString &)>(&QDoubleSpinBox::valueChanged), this, &VuoInputEditorTransform2d::onSpinboxUpdate);
 
    // x-scale
    spinboxForCoord[xScale] = initSpinBox(xScale, dialog, currentTransform.scale.x);
    sliderForCoord[xScale] = initSlider(xScale, dialog, currentTransform.scale.x);
    connect(sliderForCoord[xScale], &QSlider::valueChanged, this, &VuoInputEditorTransform2d::onSliderUpdate);
    connect(spinboxForCoord[xScale], static_cast<void (QDoubleSpinBox::*)(const QString &)>(&QDoubleSpinBox::valueChanged), this, &VuoInputEditorTransform2d::onSpinboxUpdate);
 
    // y-scale
    spinboxForCoord[yScale] = initSpinBox(yScale, dialog, currentTransform.scale.y);
    sliderForCoord[yScale] = initSlider(yScale, dialog, currentTransform.scale.y);
    connect(sliderForCoord[yScale], &QSlider::valueChanged, this, &VuoInputEditorTransform2d::onSliderUpdate);
    connect(spinboxForCoord[yScale], static_cast<void (QDoubleSpinBox::*)(const QString &)>(&QDoubleSpinBox::valueChanged), this, &VuoInputEditorTransform2d::onSpinboxUpdate);
 
    // 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(8);
 
    unsigned int row = 0;
 
    layout->addWidget(makeLabel("X"), row, 1, Qt::AlignHCenter);
    layout->addWidget(makeLabel("Y"), row, 2, Qt::AlignHCenter);
 
    row++;
 
    layout->addWidget(makeLabel("Translation"), row, 0);
    layout->addWidget( spinboxForCoord[xTranslation], row, 1);
    layout->addWidget( spinboxForCoord[yTranslation], row, 2);
 
    row++;
 
    layout->addWidget( sliderForCoord[xTranslation], row, 1);
    layout->addWidget( sliderForCoord[yTranslation], row, 2);
 
    row++;
 
    layout->addWidget(makeLabel("Rotation"), row, 0);
 
    QHBoxLayout* rotation_layout = new QHBoxLayout;
    rotation_layout->addStretch(0);
    QVBoxLayout* rotation_vertical = new QVBoxLayout();
    rotation_vertical->addWidget( spinboxForCoord[rotation] );
    rotation_vertical->addWidget( sliderForCoord[rotation] );
    rotation_layout->addLayout(rotation_vertical);
    rotation_layout->addStretch(0);
 
    layout->addLayout(rotation_layout, row, 1, 2, 2);
 
    row++;
 
    layout->addWidget(makeLabel(""), row, 0);
 
    row++;
 
    layout->addWidget(makeLabel("Scale"), row, 0);
    layout->addWidget( spinboxForCoord[xScale], row, 1);
    layout->addWidget( spinboxForCoord[yScale], row, 2);
 
    row++;
 
    layout->addWidget( sliderForCoord[xScale], row, 1);
    layout->addWidget( sliderForCoord[yScale], row, 2);
 
    row++;
 
    // min acceptable size
    dialog.setMaximumWidth(1);
    dialog.setMaximumHeight(1);
 
    dialog.adjustSize();
 
    // Layout details
    setFirstWidgetInTabOrder(spinboxForCoord[xTranslation]);
    setLastWidgetInTabOrder(spinboxForCoord[yScale]);
 
    // 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[xTranslation] : spinboxForCoord[yScale])->setFocus();
    (tabCycleForward ? spinboxForCoord[xTranslation] : spinboxForCoord[yScale])->selectAll();
}
 
json_object * VuoInputEditorTransform2d::getAcceptedValue(void)
{
    return VuoTransform2d_getJson(currentTransform);
}
 
void VuoInputEditorTransform2d::setTransformProperty(coord whichCoord, double value)
{
    if(whichCoord == xTranslation)
        currentTransform.translation.x = value;
    else if(whichCoord == yTranslation)
        currentTransform.translation.y = value;
    else if(whichCoord == rotation)
        currentTransform.rotation = value * DEG2RAD;
    else if(whichCoord == xScale)
        currentTransform.scale.x = value;
    else if(whichCoord == yScale)
        currentTransform.scale.y = value;
}
 
VuoInputEditorTransform2d::coord VuoInputEditorTransform2d::getCoordFromQObject(QObject* sender)
{
    if( sender == sliderForCoord[xTranslation] || sender == spinboxForCoord[xTranslation] )
        return xTranslation;
    else if( sender == sliderForCoord[yTranslation] || sender == spinboxForCoord[yTranslation] )
        return yTranslation;
    else if( sender == sliderForCoord[rotation] || sender == spinboxForCoord[rotation] )
        return rotation;
    else if( sender == sliderForCoord[xScale] || sender == spinboxForCoord[xScale] )
        return xScale;
    else if( sender == sliderForCoord[yScale] || sender == spinboxForCoord[yScale] )
        return yScale;
 
    return xTranslation;
}
 
void VuoInputEditorTransform2d::onSliderUpdate(int sliderValue)
{
    coord whichCoord = getCoordFromQObject(QObject::sender());
    QSlider *targetSlider = sliderForCoord[whichCoord];
    double value = VuoDoubleSpinBox::sliderToDouble(targetSlider->minimum(), targetSlider->maximum(), suggestedMinForCoord[whichCoord], suggestedMaxForCoord[whichCoord], sliderValue);
    setTransformProperty(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, &VuoInputEditorTransform2d::onSpinboxUpdate);
    spinboxForCoord[whichCoord]->setValue( value );
    connect(spinboxForCoord[whichCoord], static_cast<void (QDoubleSpinBox::*)(const QString &)>(&QDoubleSpinBox::valueChanged), this, &VuoInputEditorTransform2d::onSpinboxUpdate);
 
    spinboxForCoord[whichCoord]->setFocus();
    spinboxForCoord[whichCoord]->selectAll();
 
    emit valueChanged( getAcceptedValue() );
}
 
void VuoInputEditorTransform2d::onSpinboxUpdate(QString spinboxValue)
{
    coord whichCoord = getCoordFromQObject(QObject::sender());
 
    double value = QLocale().toDouble(spinboxValue);
    setTransformProperty(whichCoord, value);
 
    QSlider *targetSlider = sliderForCoord[whichCoord];
    int sliderValue = VuoDoubleSpinBox::doubleToSlider(targetSlider->minimum(), targetSlider->maximum(), suggestedMinForCoord[whichCoord], suggestedMaxForCoord[whichCoord], value);
 
    disconnect(targetSlider, &QSlider::valueChanged, this, &VuoInputEditorTransform2d::onSliderUpdate);
    targetSlider->setValue( sliderValue );
    connect(targetSlider, &QSlider::valueChanged, this, &VuoInputEditorTransform2d::onSliderUpdate);
 
    emit valueChanged( getAcceptedValue() );
}