VuoInputEditorMovieFormat.cc

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#include "VuoInputEditorMovieFormat.hh"
#include "VuoComboBox.hh"
 
const QColor VuoInputEditorMovieFormat::darkModeEnabledLabelTextColor = QColor(207, 207, 207);
const QColor VuoInputEditorMovieFormat::darkModeDisabledLabelTextColor = QColor(127, 127, 127);
 
extern "C"
{
    #include "VuoMovieFormat.h"
    #include "VuoReal.h"
}
 
VuoInputEditor * VuoInputEditorMovieFormatFactory::newInputEditor()
{
    return new VuoInputEditorMovieFormat();
}
 
void VuoInputEditorMovieFormat::setUpDialog(QDialog &dialog, json_object *originalValue, json_object *details)
{
    const int decimalPrecision = DBL_MAX_10_EXP + DBL_DIG;
 
    suggestedMinImageQuality = 0;
    suggestedMaxImageQuality = 1;
 
    suggestedMinAudioQuality = 0;
    suggestedMaxAudioQuality = 1;
 
    double suggestedStepImageQuality = 0.1;
    double suggestedStepAudioQuality = 0.1;
 
    QDoubleValidator *validator = new QDoubleValidator(this);
    validator->setDecimals(decimalPrecision);
 
    isDark = false;
    tabCycleForward = true;
 
    // Parse supported port annotations from the port's "details" JSON object:
    if (details)
    {
        json_object *darkMode = NULL;
        if (json_object_object_get_ex(details, "isDark", &darkMode))
            isDark = json_object_get_boolean(darkMode);
 
        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))
        {
            suggestedMinImageQuality = VuoMovieFormat_makeFromJson(suggestedMinValue).imageQuality;
            suggestedMinAudioQuality = VuoMovieFormat_makeFromJson(suggestedMinValue).audioQuality;
        }
 
        // "suggestedMax"
        json_object *suggestedMaxValue = NULL;
        if (json_object_object_get_ex(details, "suggestedMax", &suggestedMaxValue))
        {
            suggestedMaxImageQuality = VuoMovieFormat_makeFromJson(suggestedMaxValue).imageQuality;
            suggestedMaxAudioQuality = VuoMovieFormat_makeFromJson(suggestedMaxValue).audioQuality;
        }
 
        // "suggestedStep"
        json_object *suggestedStepValue = NULL;
        if (json_object_object_get_ex(details, "suggestedStep", &suggestedStepValue))
        {
            suggestedStepImageQuality = VuoMovieFormat_makeFromJson(suggestedStepValue).imageQuality;
            suggestedStepAudioQuality = VuoMovieFormat_makeFromJson(suggestedStepValue).audioQuality;
        }
    }
 
    QFont font = getDefaultFont();
 
    // Display menus for "Image Encoding" and "Audio Encoding".
    {
        string originalMovieImageEncodingAsString = json_object_to_json_string_ext(VuoMovieImageEncoding_getJson(VuoMovieFormat_makeFromJson(originalValue).imageEncoding), JSON_C_TO_STRING_PLAIN);
        comboBoxImageEncoding = new VuoComboBox(&dialog);
        comboBoxImageEncoding->setFont(font);
        setUpComboBoxForType(comboBoxImageEncoding, "VuoMovieImageEncoding", originalMovieImageEncodingAsString);
        connect(comboBoxImageEncoding, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this, &VuoInputEditorMovieFormat::updateQualitySliderEnabledStatusAndEmitValueChanged);
 
        string originalAudioEncodingAsString = json_object_to_json_string_ext(VuoAudioEncoding_getJson(VuoMovieFormat_makeFromJson(originalValue).audioEncoding), JSON_C_TO_STRING_PLAIN);
        comboBoxAudioEncoding = new VuoComboBox(&dialog);
        comboBoxAudioEncoding->setFont(font);
        setUpComboBoxForType(comboBoxAudioEncoding, "VuoAudioEncoding", originalAudioEncodingAsString);
        connect(comboBoxAudioEncoding, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this, &VuoInputEditorMovieFormat::updateQualitySliderEnabledStatusAndEmitValueChanged);
    }
 
    // Display sliders for "Image Quality" and "Audio Quality".
    {
        // Image Quality
        lineEditImageQuality = new QLineEdit(&dialog);
        lineEditImageQuality->setFont(font);
        lineEditImageQuality->setText( convertToLineEditFormat( VuoReal_getJson(VuoMovieFormat_makeFromJson(originalValue).imageQuality) ) );
        lineEditImageQuality->adjustSize();
 
        lineEditImageQuality->setValidator(validator);
        lineEditImageQuality->installEventFilter(this);
 
        sliderImageQuality = new QSlider(&dialog);
        sliderImageQuality->setOrientation(Qt::Horizontal);
        sliderImageQuality->setFocusPolicy(Qt::NoFocus);
        sliderImageQuality->setMinimum(0);
        sliderImageQuality->setMaximum(sliderImageQuality->width());
        sliderImageQuality->setSingleStep(fmax(1, suggestedStepImageQuality*(sliderImageQuality->maximum()-sliderImageQuality->minimum())/(suggestedMaxImageQuality-suggestedMinImageQuality)));
 
        double lineEditValueImageQuality = VuoMovieFormat_makeFromJson(originalValue).imageQuality;
        int sliderValueImageQuality = lineEditValueToScaledSliderValue(lineEditValueImageQuality, imageQuality);
        sliderImageQuality->setValue(sliderValueImageQuality);
 
        connect(sliderImageQuality, &QSlider::valueChanged, this, static_cast<void (VuoInputEditorMovieFormat::*)(int)>(&VuoInputEditorMovieFormat::updateLineEditValue));
        connect(lineEditImageQuality, &QLineEdit::textEdited, this, &VuoInputEditorMovieFormat::updateSliderValue);
        connect(lineEditImageQuality, &QLineEdit::editingFinished, this, &VuoInputEditorMovieFormat::emitValueChanged);
 
        // Audio Quality
        lineEditAudioQuality = new QLineEdit(&dialog);
        lineEditAudioQuality->setFont(font);
        lineEditAudioQuality->setText( convertToLineEditFormat( VuoReal_getJson(VuoMovieFormat_makeFromJson(originalValue).audioQuality) ) );
        lineEditAudioQuality->adjustSize();
 
        lineEditAudioQuality->setValidator(validator);
        lineEditAudioQuality->installEventFilter(this);
 
        sliderAudioQuality = new QSlider(&dialog);
        sliderAudioQuality->setOrientation(Qt::Horizontal);
        sliderAudioQuality->setFocusPolicy(Qt::NoFocus);
        sliderAudioQuality->setMinimum(0);
        sliderAudioQuality->setMaximum(sliderAudioQuality->width());
        sliderAudioQuality->setSingleStep(fmax(1, suggestedStepAudioQuality*(sliderAudioQuality->maximum()-sliderAudioQuality->minimum())/(suggestedMaxAudioQuality-suggestedMinAudioQuality)));
 
        double lineEditValueAudioQuality = VuoMovieFormat_makeFromJson(originalValue).audioQuality;
        int sliderValueAudioQuality = lineEditValueToScaledSliderValue(lineEditValueAudioQuality, audioQuality);
        sliderAudioQuality->setValue(sliderValueAudioQuality);
 
        connect(sliderAudioQuality, &QSlider::valueChanged, this, static_cast<void (VuoInputEditorMovieFormat::*)(int)>(&VuoInputEditorMovieFormat::updateLineEditValue));
        connect(lineEditAudioQuality, &QLineEdit::textEdited, this, &VuoInputEditorMovieFormat::updateSliderValue);
        connect(lineEditAudioQuality, &QLineEdit::editingFinished, this, &VuoInputEditorMovieFormat::emitValueChanged);
    }
 
    // Layout details
    {
        const int widgetVerticalSpacing = 4;
        const int widgetHorizontalSpacing = 5;
 
        // Tweak to better align the text of labels with the text in their associated widgets.
        const int comboLabelVerticalCorrection = 3;
        const int lineEditLabelVerticalCorrection = 1;
 
        QLabel *labelImageEncoding = new QLabel("Image Encoding", &dialog);
        QLabel *labelAudioEncoding = new QLabel("Audio Encoding", &dialog);
        labelImageQuality = new QLabel("Image Quality", &dialog);
        labelAudioQuality = new QLabel("Audio Quality", &dialog);
 
        setFirstWidgetInTabOrder(lineEditImageQuality);
        setLastWidgetInTabOrder(lineEditAudioQuality);
 
        updateQualitySliderEnabledStatus();
 
        labelImageEncoding->move(   labelImageEncoding->pos().x(),
                                    labelImageEncoding->pos().y() + comboLabelVerticalCorrection);
        comboBoxImageEncoding->move(labelImageEncoding->pos().x()+labelImageEncoding->width() + widgetHorizontalSpacing,
                                    labelImageEncoding->pos().y() - comboLabelVerticalCorrection);
 
        labelImageQuality->move(    labelImageEncoding->pos().x(),
                                    comboBoxImageEncoding->pos().y() + comboBoxImageEncoding->height() + widgetVerticalSpacing + lineEditLabelVerticalCorrection);
        lineEditImageQuality->move( comboBoxImageEncoding->pos().x(),
                                    labelImageQuality->pos().y() - lineEditLabelVerticalCorrection);
        sliderImageQuality->move(   lineEditImageQuality->pos().x(),
                                    lineEditImageQuality->pos().y() + lineEditImageQuality->height() + widgetVerticalSpacing - lineEditLabelVerticalCorrection);
 
        sliderImageQuality->resize(sliderImageQuality->width(), sliderImageQuality->height() - 10);
        lineEditImageQuality->resize(sliderImageQuality->width(), lineEditImageQuality->height());
 
        labelAudioEncoding->move(   labelImageQuality->pos().x(),
                                    sliderImageQuality->pos().y() + sliderImageQuality->height() + widgetVerticalSpacing + comboLabelVerticalCorrection);
        comboBoxAudioEncoding->move(labelAudioEncoding->pos().x() + labelAudioEncoding->width() + widgetHorizontalSpacing,
                                    labelAudioEncoding->pos().y() - comboLabelVerticalCorrection);
 
 
        labelAudioQuality->move(    labelAudioEncoding->pos().x(),
                                    comboBoxAudioEncoding->pos().y() + comboBoxAudioEncoding->height() + widgetVerticalSpacing + lineEditLabelVerticalCorrection);
        lineEditAudioQuality->move( comboBoxAudioEncoding->pos().x(),
                                    labelAudioQuality->pos().y() - lineEditLabelVerticalCorrection);
        sliderAudioQuality->move(   lineEditAudioQuality->pos().x(),
                                    lineEditAudioQuality->pos().y() + lineEditAudioQuality->height() + widgetVerticalSpacing - lineEditLabelVerticalCorrection);
 
        sliderAudioQuality->resize(sliderAudioQuality->width(), sliderAudioQuality->height() - 10);
        lineEditAudioQuality->resize(sliderAudioQuality->width(), lineEditAudioQuality->height());
 
        labelImageEncoding->show();
        comboBoxImageEncoding->show();
 
        labelImageQuality->show();
        sliderImageQuality->show();
 
        labelAudioEncoding->show();
        comboBoxAudioEncoding->show();
 
        labelAudioQuality->show();
        sliderAudioQuality->show();
 
        dialog.adjustSize();
    }
}
 
json_object * VuoInputEditorMovieFormat::getAcceptedValue(void)
{
    return convertFromSubwidgetFormats(comboBoxImageEncoding->currentData(),
                                      lineEditImageQuality->text(),
                                      comboBoxAudioEncoding->currentData(),
                                      lineEditAudioQuality->text());
}
 
QString VuoInputEditorMovieFormat::convertToLineEditFormat(json_object *value)
{
    double realValue = VuoReal_makeFromJson(value);
    QString valueAsStringInUserLocale = QLocale().toString(realValue);
 
    if (qAbs(realValue) >= 1000.0)
        valueAsStringInUserLocale.remove(QLocale().groupSeparator());
 
    return valueAsStringInUserLocale;
}
 
json_object * VuoInputEditorMovieFormat::convertFromSubwidgetFormats(const QVariant &imageEncoding,
                                                                    const QString &imageQualityAsString,
                                                                    const QVariant &audioEncoding,
                                                                    const QString &audioQualityAsString)
{
    VuoMovieFormat format;
    format.imageEncoding = VuoMovieImageEncoding_makeFromJson((json_object *)imageEncoding.value<void *>());
    format.audioEncoding = VuoAudioEncoding_makeFromJson((json_object *)audioEncoding.value<void *>());
    format.imageQuality = QLocale().toDouble(imageQualityAsString);
    format.audioQuality = QLocale().toDouble(audioQualityAsString);
    return VuoMovieFormat_getJson(format);
}
 
void VuoInputEditorMovieFormat::updateSliderValue(QString newLineEditText)
{
    QObject *sender = QObject::sender();
    qualityAttribute whichQualityAttribute = (sender == lineEditImageQuality? imageQuality : audioQuality);
 
    double newLineEditValue = QLocale().toDouble(newLineEditText);
    int newSliderValue = lineEditValueToScaledSliderValue(newLineEditValue, whichQualityAttribute);
 
    QSlider *targetSlider = (whichQualityAttribute == imageQuality? sliderImageQuality : sliderAudioQuality);
 
    disconnect(targetSlider, &QSlider::valueChanged, this, static_cast<void (VuoInputEditorMovieFormat::*)(int)>(&VuoInputEditorMovieFormat::updateLineEditValue));
    targetSlider->setValue(newSliderValue);
    connect(targetSlider, &QSlider::valueChanged, this, static_cast<void (VuoInputEditorMovieFormat::*)(int)>(&VuoInputEditorMovieFormat::updateLineEditValue));
}
 
void VuoInputEditorMovieFormat::updateLineEditValue()
{
    QObject *sender = QObject::sender();
    qualityAttribute whichQualityAttribute = (sender == sliderImageQuality? imageQuality: audioQuality);
    updateLineEditValue(((QSlider *)sender)->value(), whichQualityAttribute);
}
 
void VuoInputEditorMovieFormat::updateLineEditValue(int newSliderValue)
{
    QObject *sender = QObject::sender();
    qualityAttribute whichQualityAttribute = (sender == sliderImageQuality? imageQuality: audioQuality);
 
    updateLineEditValue(newSliderValue, whichQualityAttribute);
}
 
void VuoInputEditorMovieFormat::updateLineEditValue(int newSliderValue, qualityAttribute whichQualityAttribute)
{
    double newLineEditValue = sliderValueToScaledLineEditValue(newSliderValue, whichQualityAttribute);
    QLineEdit *targetLineEdit = (whichQualityAttribute == imageQuality? lineEditImageQuality : lineEditAudioQuality);
    const QString originalLineEditText = targetLineEdit->text();
    QString newLineEditText = QLocale().toString(newLineEditValue, 'g');
 
    if (qAbs(newLineEditValue) >= 1000.0)
        newLineEditText.remove(QLocale().groupSeparator());
 
    if (originalLineEditText != newLineEditText)
    {
        targetLineEdit->setText(newLineEditText);
        targetLineEdit->setFocus();
        targetLineEdit->selectAll();
 
        emitValueChanged();
    }
}
 
int VuoInputEditorMovieFormat::lineEditValueToScaledSliderValue(double lineEditValue, qualityAttribute whichQualityAttribute)
{
    QSlider *targetSlider = (whichQualityAttribute == imageQuality? sliderImageQuality : sliderAudioQuality);
    double suggestedMin = (whichQualityAttribute == imageQuality? suggestedMinImageQuality : suggestedMinAudioQuality);
    double suggestedMax = (whichQualityAttribute == imageQuality? suggestedMaxImageQuality : suggestedMaxAudioQuality);
    const double lineEditRange = suggestedMax - suggestedMin;
 
    const int sliderRange = targetSlider->maximum() - targetSlider->minimum();
    int scaledSliderValue = targetSlider->minimum() + ((lineEditValue-suggestedMin)/(1.0*(lineEditRange)))*sliderRange;
 
    return scaledSliderValue;
}
 
double VuoInputEditorMovieFormat::sliderValueToScaledLineEditValue(int sliderValue, qualityAttribute whichQualityAttribute)
{
    QSlider *targetSlider = (whichQualityAttribute == imageQuality? sliderImageQuality : sliderAudioQuality);
    double suggestedMin = (whichQualityAttribute == imageQuality? suggestedMinImageQuality : suggestedMinAudioQuality);
    double suggestedMax = (whichQualityAttribute == imageQuality? suggestedMaxImageQuality : suggestedMaxAudioQuality);
    const double lineEditRange = suggestedMax - suggestedMin;
 
    const int sliderRange = targetSlider->maximum() - targetSlider->minimum();
    double scaledLineEditValue = suggestedMin + ((sliderValue-targetSlider->minimum())/(1.0*sliderRange))*lineEditRange;
 
    return scaledLineEditValue;
}
 
void VuoInputEditorMovieFormat::updateQualitySliderEnabledStatusAndEmitValueChanged()
{
    updateQualitySliderEnabledStatus();
    emitValueChanged();
}
 
void VuoInputEditorMovieFormat::updateQualitySliderEnabledStatus()
{
    // Image Quality
    json_object *acceptedFormatJson = getAcceptedValue();
    VuoMovieFormat acceptedFormat = VuoMovieFormat_makeFromJson(acceptedFormatJson);
    bool enableImageQualityWidgets = ((acceptedFormat.imageEncoding == VuoMovieImageEncoding_JPEG) ||
                                     (acceptedFormat.imageEncoding == VuoMovieImageEncoding_H264) ||
                                     (acceptedFormat.imageEncoding == VuoMovieImageEncoding_HEVC) ||
                                     (acceptedFormat.imageEncoding == VuoMovieImageEncoding_HEVCAlpha));
 
    labelImageQuality->setEnabled(enableImageQualityWidgets);
    lineEditImageQuality->setEnabled(enableImageQualityWidgets);
    sliderImageQuality->setEnabled(enableImageQualityWidgets);
 
    if (!enableImageQualityWidgets)
    {
        int sliderValueImageQuality = lineEditValueToScaledSliderValue(1., imageQuality);
        sliderImageQuality->setValue(sliderValueImageQuality);
    }
 
    // Audio Quality
    bool enableAudioQualityWidgets = (acceptedFormat.audioEncoding != VuoAudioEncoding_LinearPCM);
 
    labelAudioQuality->setEnabled(enableAudioQualityWidgets);
    lineEditAudioQuality->setEnabled(enableAudioQualityWidgets);
    sliderAudioQuality->setEnabled(enableAudioQualityWidgets);
 
    if (!enableAudioQualityWidgets)
    {
        int sliderValueAudioQuality = lineEditValueToScaledSliderValue(1., audioQuality);
        sliderAudioQuality->setValue(sliderValueAudioQuality);
    }
 
    QLineEdit *firstEnabledLineEdit = (enableImageQualityWidgets? lineEditImageQuality :
                                                                  (enableAudioQualityWidgets? lineEditAudioQuality :
                                                                                              NULL));
 
    QLineEdit *lastEnabledLineEdit = (enableAudioQualityWidgets? lineEditAudioQuality :
                                                                 (enableImageQualityWidgets? lineEditImageQuality :
                                                                                             NULL));
 
    // 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 .
    if (tabCycleForward && firstEnabledLineEdit)
    {
        firstEnabledLineEdit->setFocus();
        firstEnabledLineEdit->selectAll();
    }
    else if (!tabCycleForward && lastEnabledLineEdit)
    {
        lastEnabledLineEdit->setFocus();
        lastEnabledLineEdit->selectAll();
    }
 
    setFirstWidgetInTabOrder(firstEnabledLineEdit);
    setLastWidgetInTabOrder(lastEnabledLineEdit);
}
 
void VuoInputEditorMovieFormat::emitValueChanged()
{
    emit valueChanged(getAcceptedValue());
}
 
bool VuoInputEditorMovieFormat::eventFilter(QObject *object, QEvent *event)
{
    QSlider *targetSlider = (object==lineEditImageQuality? sliderImageQuality :
                            (object==lineEditAudioQuality? sliderAudioQuality :
                                                NULL));
 
    if (event->type()==QEvent::Wheel && targetSlider)
    {
        // Let the slider handle mouse wheel events.
        QApplication::sendEvent(targetSlider, event);
        return true;
    }
 
    else if (event->type()==QEvent::KeyPress && targetSlider)
    {
        // Let the slider handle keypresses of the up and down arrows.
        QKeyEvent *keyEvent = (QKeyEvent *)(event);
        if ((keyEvent->key() == Qt::Key_Up) || (keyEvent->key() == Qt::Key_Down))
        {
            QApplication::sendEvent(targetSlider, event);
            return true;
        }
    }
 
    return VuoInputEditorWithLineEdit::eventFilter(object, event);
}
 
QComboBox * VuoInputEditorMovieFormat::setUpComboBoxForType(QComboBox *comboBox, QString type, string originalValueAsString)
{
    QString allowedValuesFunctionName = type + "_getAllowedValues";
    typedef void *(*allowedValuesFunctionType)(void);
    allowedValuesFunctionType allowedValuesFunction = (allowedValuesFunctionType)dlsym(RTLD_SELF, allowedValuesFunctionName.toUtf8().constData());
 
    QString summaryFunctionName = type + "_getSummary";
    typedef char *(*summaryFunctionType)(int);
    summaryFunctionType summaryFunction = (summaryFunctionType)dlsym(RTLD_SELF, summaryFunctionName.toUtf8().constData());
 
    QString jsonFunctionName = type + "_getJson";
    typedef json_object *(*jsonFunctionType)(int);
    jsonFunctionType jsonFunction = (jsonFunctionType)dlsym(RTLD_SELF, jsonFunctionName.toUtf8().constData());
 
    QString listCountFunctionName = "VuoListGetCount_" + type;
    typedef unsigned long (*listCountFunctionType)(void *);
    listCountFunctionType listCountFunction = (listCountFunctionType)dlsym(RTLD_SELF, listCountFunctionName.toUtf8().constData());
 
    QString listValueFunctionName = "VuoListGetValue_" + type;
    typedef int (*listValueFunctionType)(void *, unsigned long);
    listValueFunctionType listValueFunction = (listValueFunctionType)dlsym(RTLD_SELF, listValueFunctionName.toUtf8().constData());
 
    if (allowedValuesFunction && summaryFunction && jsonFunction && listCountFunction && listValueFunction)
    {
        void *allowedValues = allowedValuesFunction();
        unsigned long count = listCountFunction(allowedValues);
        for (unsigned long i=1; i<=count; ++i)
        {
            int value = listValueFunction(allowedValues, i);
            char *summary = summaryFunction(value);
            QVariant variantValue = QVariant::fromValue((void *)jsonFunction(value));
 
            // Hide HEVC on OS versions where it isn't supported.
            if (type == "VuoMovieImageEncoding"
                && value == VuoMovieImageEncoding_HEVC
                && QSysInfo::macVersion() < Q_MV_OSX(10, 13))
            {
                free(summary);
                continue;
            }
            if (type == "VuoMovieImageEncoding"
                && (value == VuoMovieImageEncoding_HEVCAlpha
                 || value == VuoMovieImageEncoding_ProRes422HQ
                 || value == VuoMovieImageEncoding_ProRes422LT
                 || value == VuoMovieImageEncoding_ProRes422Proxy)
                && QSysInfo::macVersion() < Q_MV_OSX(10, 15))
            {
                free(summary);
                continue;
            }
 
            comboBox->addItem(summary, variantValue);
 
            if (json_object_to_json_string_ext(jsonFunction(value), JSON_C_TO_STRING_PLAIN) == originalValueAsString)
                comboBox->setCurrentText(summary);
 
            free(summary);
        }
    }
 
    return comboBox;
}