ParameterTuningDelegate Class Reference

Description

Definition at line 28 of file ParameterTuningDelegate.h.

Inheritance diagram for ParameterTuningDelegate:

Collaboration diagram for ParameterTuningDelegate:

Classes
class	TuningData

Signals
void	currentLinkChanged (ParameterItem *item)

Public Member Functions
	ParameterTuningDelegate (QObject *parent=nullptr)
	~ParameterTuningDelegate () override
QWidget *	createEditor (QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const override
void	paint (QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override
void	setEditorData (QWidget *editor, const QModelIndex &index) const override
void	setModelData (QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const override
void	setReadOnly (bool isReadOnly)
void	setSliderRangeFactor (double value)
void	setValueColumn (int valueColumn)
QSize	sizeHint (const QStyleOptionViewItem &option, const QModelIndex &) const override

Private Slots
void	editorValueChanged (double value)
void	sliderValueChanged (int position)

Private Member Functions
void	emitSignals (double value)
void	updateSlider (double value) const

Private Attributes
QHBoxLayout *	m_contentLayout
QWidget *	m_contentWidget
ParameterItem *	m_currentItem
bool	m_isReadOnly
QSlider *	m_slider
TuningData	m_tuning_info
ScientificSpinBox *	m_valueBox
int	m_valueColumn

Constructor & Destructor Documentation

ParameterTuningDelegate()

ParameterTuningDelegate::ParameterTuningDelegate

(

QObject *

parent = nullptr

)

Definition at line 89 of file ParameterTuningDelegate.cpp.

    : QItemDelegate(parent)
    , m_valueColumn(1)
    , m_slider(nullptr)
    , m_valueBox(nullptr)
    , m_contentWidget(nullptr)
    , m_contentLayout(nullptr)
    , m_currentItem(nullptr)
    , m_isReadOnly(false)
{
}

~ParameterTuningDelegate()

ParameterTuningDelegate::~ParameterTuningDelegate ( )

overridedefault

Member Function Documentation

createEditor()

QWidget * ParameterTuningDelegate::createEditor ( QWidget *  parent, const QStyleOptionViewItem &  option, const QModelIndex &  index  ) const

override

Definition at line 126 of file ParameterTuningDelegate.cpp.

{
    if (m_isReadOnly)
        return nullptr;
 
    if (index.column() != m_valueColumn)
        return QItemDelegate::createEditor(parent, option, index);
 
    if (!index.parent().isValid())
        return nullptr;
 
    QVariant data = index.model()->data(index, Qt::EditRole);
    if (!data.isValid())
        return nullptr;
 
    m_currentItem = ParameterTuningModel::toParameterItem(index);
    if (!m_currentItem)
        return nullptr;
 
    double value = data.toDouble();
    RealLimits limits = m_currentItem->limitsOfLink();
    m_tuning_info.setItemLimits(limits);
    m_tuning_info.value_to_slider(value);
 
    // initializing value box
    m_valueBox = new ScientificSpinBox();
    m_valueBox->setKeyboardTracking(false);
    m_valueBox->setFixedWidth(105);
    m_valueBox->setDecimals(m_currentItem->decimalsOfLink());
    m_valueBox->setSingleStep(m_tuning_info.step());
 
    if (limits.hasLowerLimit())
        m_valueBox->setMinimum(limits.lowerLimit());
    else
        m_valueBox->setMinimum(minimum_doublespin_value);
 
    if (limits.hasUpperLimit())
        m_valueBox->setMaximum(limits.upperLimit());
    else
        m_valueBox->setMaximum(maximum_doublespin_value);
 
    m_valueBox->setValue(value);
    connect(m_valueBox, &ScientificSpinBox::valueChanged, this,
            &ParameterTuningDelegate::editorValueChanged);
 
    // initializing slider
    m_slider = new QSlider(Qt::Horizontal);
    m_slider->setFocusPolicy(Qt::StrongFocus);
    m_slider->setTickPosition(QSlider::NoTicks);
    m_slider->setTickInterval(1);
    m_slider->setSingleStep(1);
    m_slider->setRange(m_tuning_info.m_smin, m_tuning_info.m_smax);
 
    updateSlider(value);
 
    m_contentWidget = new QWidget(parent);
    m_contentLayout = new QHBoxLayout(parent);
    m_contentLayout->setMargin(0);
    m_contentLayout->setSpacing(0);
    m_contentLayout->addWidget(m_valueBox);
    m_contentLayout->addWidget(m_slider);
 
    // FIXME there is an issue with time of life of editor .vs. item
    //        m_currentItem->mapper()->setOnValueChange(
    //                      [this](){
    //            if(m_valueBox && m_currentItem)
    //              m_valueBox->setValue(m_currentItem->value().toDouble());
    //        }, this);
 
    //        m_currentItem->mapper()->setOnItemDestroy(
    //                    [this](SessionItem *) {
    //            m_currentItem = 0;
    //        }, this);
 
    m_contentWidget->setLayout(m_contentLayout);
 
    return m_contentWidget;
}

References ParameterItem::decimalsOfLink(), editorValueChanged(), ParameterItem::limitsOfLink(), m_contentLayout, m_contentWidget, m_currentItem, m_isReadOnly, m_slider, ParameterTuningDelegate::TuningData::m_smax, ParameterTuningDelegate::TuningData::m_smin, m_tuning_info, m_valueBox, m_valueColumn, ScientificSpinBox::setDecimals(), ParameterTuningDelegate::TuningData::setItemLimits(), ScientificSpinBox::setMaximum(), ScientificSpinBox::setMinimum(), ScientificSpinBox::setSingleStep(), ScientificSpinBox::setValue(), ParameterTuningDelegate::TuningData::step(), ParameterTuningModel::toParameterItem(), updateSlider(), ParameterTuningDelegate::TuningData::value_to_slider(), and ScientificSpinBox::valueChanged().

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currentLinkChanged

void ParameterTuningDelegate::currentLinkChanged ( ParameterItem *  item )

signal

Referenced by ParameterTuningWidget::ParameterTuningWidget(), and emitSignals().

editorValueChanged

void ParameterTuningDelegate::editorValueChanged ( double  value )

privateslot

Definition at line 229 of file ParameterTuningDelegate.cpp.

{
    disconnect(m_slider, &QSlider::valueChanged, this,
               &ParameterTuningDelegate::sliderValueChanged);
 
    updateSlider(value);
 
    connect(m_slider, &QSlider::valueChanged, this, &ParameterTuningDelegate::sliderValueChanged);
    emitSignals(value);
}

References emitSignals(), m_slider, sliderValueChanged(), and updateSlider().

Referenced by createEditor(), and sliderValueChanged().

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emitSignals()

void ParameterTuningDelegate::emitSignals ( double  value )

private

Definition at line 258 of file ParameterTuningDelegate.cpp.

{
    if (m_currentItem) {
        m_currentItem->propagateValueToLink(value);
        emit currentLinkChanged(m_currentItem);
    }
}

References currentLinkChanged(), m_currentItem, and ParameterItem::propagateValueToLink().

Referenced by editorValueChanged(), and sliderValueChanged().

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paint()

void ParameterTuningDelegate::paint ( QPainter *  painter, const QStyleOptionViewItem &  option, const QModelIndex &  index  ) const

override

Definition at line 103 of file ParameterTuningDelegate.cpp.

{
    if (index.column() == m_valueColumn) {
        if (!index.parent().isValid())
            return;
 
        QVariant valueAsVariant = index.model()->data(index, Qt::EditRole);
        if (valueAsVariant.isValid() && valueAsVariant.type() == QVariant::Double) {
            double value = valueAsVariant.toDouble();
            QString text = ScientificSpinBox::toString(value, 3);
 
            QStyleOptionViewItem myOption = option;
            myOption.displayAlignment = Qt::AlignLeft | Qt::AlignVCenter;
 
            drawDisplay(painter, myOption, myOption.rect, text);
            drawFocus(painter, myOption, myOption.rect);
            return;
        }
    }
    QItemDelegate::paint(painter, option, index);
}

References m_valueColumn, and ScientificSpinBox::toString().

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setEditorData()

void ParameterTuningDelegate::setEditorData ( QWidget *  editor, const QModelIndex &  index  ) const

override

Definition at line 240 of file ParameterTuningDelegate.cpp.

{
    if (index.column() == m_valueColumn) {
        // as using custom widget, doing nothing here
    } else {
        QItemDelegate::setEditorData(editor, index);
    }
}

References m_valueColumn.

setModelData()

void ParameterTuningDelegate::setModelData ( QWidget *  editor, QAbstractItemModel *  model, const QModelIndex &  index  ) const

override

Definition at line 249 of file ParameterTuningDelegate.cpp.

{
    if (index.column() == m_valueColumn)
        model->setData(index, m_valueBox->value());
    else
        QItemDelegate::setModelData(editor, model, index);
}

References m_valueBox, m_valueColumn, and ScientificSpinBox::value.

setReadOnly()

void ParameterTuningDelegate::setReadOnly

(

bool

isReadOnly

)

Definition at line 271 of file ParameterTuningDelegate.cpp.

{
    m_isReadOnly = isReadOnly;
}

References m_isReadOnly.

Referenced by ParameterTuningWidget::setTuningDelegateEnabled().

setSliderRangeFactor()

void ParameterTuningDelegate::setSliderRangeFactor

(

double

value

)

Definition at line 266 of file ParameterTuningDelegate.cpp.

{
    m_tuning_info.setRangeFactor(value);
}

References m_tuning_info, and ParameterTuningDelegate::TuningData::setRangeFactor().

Referenced by ParameterTuningWidget::onSliderValueChanged().

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setValueColumn()

void ParameterTuningDelegate::setValueColumn ( int  valueColumn )

inline

Definition at line 66 of file ParameterTuningDelegate.h.

{ m_valueColumn = valueColumn; }

References m_valueColumn.

sizeHint()

QSize ParameterTuningDelegate::sizeHint ( const QStyleOptionViewItem &  option, const QModelIndex &    ) const

inlineoverride

Definition at line 51 of file ParameterTuningDelegate.h.

    {
        return QSize(option.rect.width(), 25);
    }

sliderValueChanged

void ParameterTuningDelegate::sliderValueChanged ( int  position )

privateslot

Definition at line 216 of file ParameterTuningDelegate.cpp.

{
    disconnect(m_valueBox, &ScientificSpinBox::valueChanged, this,
               &ParameterTuningDelegate::editorValueChanged);
 
    double value = m_tuning_info.slider_to_value(position);
    m_valueBox->setValue(value);
 
    connect(m_valueBox, &ScientificSpinBox::valueChanged, this,
            &ParameterTuningDelegate::editorValueChanged);
    emitSignals(value);
}

References editorValueChanged(), emitSignals(), m_tuning_info, m_valueBox, ScientificSpinBox::setValue(), ParameterTuningDelegate::TuningData::slider_to_value(), and ScientificSpinBox::valueChanged().

Referenced by editorValueChanged(), and updateSlider().

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updateSlider()

void ParameterTuningDelegate::updateSlider ( double  value ) const

private

Definition at line 206 of file ParameterTuningDelegate.cpp.

{
    disconnect(m_slider, &QSlider::valueChanged, this,
               &ParameterTuningDelegate::sliderValueChanged);
 
    m_slider->setValue(m_tuning_info.value_to_slider(value));
 
    connect(m_slider, &QSlider::valueChanged, this, &ParameterTuningDelegate::sliderValueChanged);
}

References m_slider, m_tuning_info, sliderValueChanged(), and ParameterTuningDelegate::TuningData::value_to_slider().

Referenced by createEditor(), and editorValueChanged().

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Member Data Documentation

m_contentLayout

QHBoxLayout* ParameterTuningDelegate::m_contentLayout

mutableprivate

Definition at line 85 of file ParameterTuningDelegate.h.

Referenced by createEditor().

m_contentWidget

QWidget* ParameterTuningDelegate::m_contentWidget

mutableprivate

Definition at line 84 of file ParameterTuningDelegate.h.

Referenced by createEditor().

m_currentItem

ParameterItem* ParameterTuningDelegate::m_currentItem

mutableprivate

Definition at line 86 of file ParameterTuningDelegate.h.

Referenced by createEditor(), and emitSignals().

m_isReadOnly

bool ParameterTuningDelegate::m_isReadOnly

private

Definition at line 88 of file ParameterTuningDelegate.h.

Referenced by createEditor(), and setReadOnly().

m_slider

QSlider* ParameterTuningDelegate::m_slider

mutableprivate

Definition at line 82 of file ParameterTuningDelegate.h.

Referenced by createEditor(), editorValueChanged(), and updateSlider().

m_tuning_info

TuningData ParameterTuningDelegate::m_tuning_info

mutableprivate

Definition at line 87 of file ParameterTuningDelegate.h.

Referenced by createEditor(), setSliderRangeFactor(), sliderValueChanged(), and updateSlider().

m_valueBox

ScientificSpinBox* ParameterTuningDelegate::m_valueBox

mutableprivate

Definition at line 83 of file ParameterTuningDelegate.h.

Referenced by createEditor(), setModelData(), and sliderValueChanged().

m_valueColumn

int ParameterTuningDelegate::m_valueColumn

private

Definition at line 81 of file ParameterTuningDelegate.h.

Referenced by createEditor(), paint(), setEditorData(), setModelData(), and setValueColumn().

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The documentation for this class was generated from the following files:

• /home/build/builds/o5h8MZZm/0/mlz/bornagain/GUI/View/Fit/ParameterTuningDelegate.h
• /home/build/builds/o5h8MZZm/0/mlz/bornagain/GUI/View/Fit/ParameterTuningDelegate.cpp