ModelView::ScientificDoubleEditor Class Reference

Custom editor for QVariant based on double with scientific notation support. More...

Inheritance diagram for ModelView::ScientificDoubleEditor:

Collaboration diagram for ModelView::ScientificDoubleEditor:

Public Slots
void	setData (const QVariant &data)
	Sets the data from model to editor. More...

Signals
void	dataChanged (QVariant value)
	Emmits signal when data was changed in an editor. More...

Public Member Functions
	ScientificDoubleEditor (QWidget *parent=nullptr)
QVariant	data () const
virtual bool	is_persistent () const
	Returns true if editor should remains alive after editing finished. More...
void	setRange (double minimum, double maximum)

Protected Member Functions
void	setDataIntern (const QVariant &data)
	Saves the data as given by editor's internal components and notifies the model. More...

Protected Attributes
QVariant	m_data

Properties
QVariant	value

Private Slots
void	onEditingFinished ()

Private Member Functions
void	update_components () override
	Should update widget components from m_data, if necessary. More...

Private Attributes
QLineEdit *	m_lineEdit
QDoubleValidator *	m_validator {nullptr}

Detailed Description

Custom editor for QVariant based on double with scientific notation support.

Definition at line 27 of file scientificdoubleeditor.h.

Constructor & Destructor Documentation

ScientificDoubleEditor()

ScientificDoubleEditor::ScientificDoubleEditor ( QWidget *  parent = nullptr )

explicit

Definition at line 28 of file scientificdoubleeditor.cpp.

    : CustomEditor(parent), m_lineEdit(new QLineEdit)
 
{
    setAutoFillBackground(true);
 
    auto layout = new QVBoxLayout;
    layout->setMargin(0);
    layout->setSpacing(0);
 
    layout->addWidget(m_lineEdit);
 
    m_validator = new QDoubleValidator(0.0, std::numeric_limits<double>::max(), max_digits, this);
    m_validator->setNotation(QDoubleValidator::ScientificNotation);
    m_lineEdit->setValidator(m_validator);
 
    connect(m_lineEdit, &QLineEdit::editingFinished, this,
            &ScientificDoubleEditor::onEditingFinished);
 
    setLayout(layout);
}

References m_lineEdit, m_validator, and onEditingFinished().

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Member Function Documentation

data()

QVariant CustomEditor::data ( ) const

inherited

Definition at line 21 of file customeditor.cpp.

{
    return m_data;
}

References ModelView::CustomEditor::m_data.

Referenced by ModelView::CustomEditor::setData(), and ModelView::CustomEditor::setDataIntern().

dataChanged

void ModelView::CustomEditor::dataChanged ( QVariant  value )

signalinherited

Emmits signal when data was changed in an editor.

Referenced by ModelView::PropertyFlatView::PropertyFlatViewImpl::create_editor(), ModelView::ViewModelDelegate::createEditor(), and ModelView::CustomEditor::setDataIntern().

is_persistent()

bool CustomEditor::is_persistent ( ) const

virtualinherited

Returns true if editor should remains alive after editing finished.

Reimplemented in ModelView::SelectableComboBoxEditor, ModelView::ScientificSpinBoxEditor, ModelView::ComboPropertyEditor, and ModelView::BoolEditor.

Definition at line 28 of file customeditor.cpp.

{
    return false;
}

onEditingFinished

void ScientificDoubleEditor::onEditingFinished ( )

privateslot

Definition at line 55 of file scientificdoubleeditor.cpp.

{
    double new_value = m_lineEdit->text().toDouble();
 
    if (!Utils::AreAlmostEqual(new_value, m_data.value<double>()))
        setDataIntern(QVariant::fromValue(new_value));
}

References ModelView::Utils::AreAlmostEqual(), ModelView::CustomEditor::m_data, m_lineEdit, and ModelView::CustomEditor::setDataIntern().

Referenced by ScientificDoubleEditor().

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setData

void CustomEditor::setData ( const QVariant &  data )

slotinherited

Sets the data from model to editor.

Definition at line 35 of file customeditor.cpp.

{
    m_data = data;
    update_components();
}

References ModelView::CustomEditor::data(), ModelView::CustomEditor::m_data, and ModelView::CustomEditor::update_components().

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setDataIntern()

void CustomEditor::setDataIntern ( const QVariant &  data )

protectedinherited

Saves the data as given by editor's internal components and notifies the model.

Definition at line 43 of file customeditor.cpp.

{
    m_data = data;
    dataChanged(m_data);
}

References ModelView::CustomEditor::data(), ModelView::CustomEditor::dataChanged(), and ModelView::CustomEditor::m_data.

Referenced by ModelView::ColorEditor::mousePressEvent(), ModelView::BoolEditor::onCheckBoxChange(), ModelView::DoubleEditor::onEditingFinished(), ModelView::IntegerEditor::onEditingFinished(), onEditingFinished(), ModelView::ScientificSpinBoxEditor::onEditingFinished(), ModelView::ComboPropertyEditor::onIndexChanged(), ModelView::ExternalPropertyComboEditor::onIndexChanged(), and ModelView::SelectableComboBoxEditor::onModelDataChanged().

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setRange()

void ScientificDoubleEditor::setRange	(	double	minimum,
		double	maximum
	)

Definition at line 50 of file scientificdoubleeditor.cpp.

{
    m_validator->setRange(minimum, maximum, max_digits);
}

References m_validator.

update_components()

void ScientificDoubleEditor::update_components ( )

overrideprivatevirtual

Should update widget components from m_data, if necessary.

Implements ModelView::CustomEditor.

Definition at line 63 of file scientificdoubleeditor.cpp.

{
    if (m_data.type() != QVariant::Double)
        throw std::runtime_error(
            "ScientificDoubleEditor::update_components() -> Error. Wrong variant type");
 
    m_lineEdit->setText(QString::number(m_data.value<double>(), 'g'));
}

References ModelView::CustomEditor::m_data, and m_lineEdit.

Member Data Documentation

m_data

QVariant ModelView::CustomEditor::m_data

protectedinherited

Definition at line 48 of file customeditor.h.

Referenced by ModelView::ExternalPropertyEditor::buttonClicked(), ModelView::ColorEditor::currentColor(), ModelView::CustomEditor::data(), ModelView::ComboPropertyEditor::internIndex(), ModelView::ExternalPropertyComboEditor::internIndex(), ModelView::ComboPropertyEditor::internLabels(), ModelView::BoolEditor::onCheckBoxChange(), ModelView::DoubleEditor::onEditingFinished(), ModelView::IntegerEditor::onEditingFinished(), onEditingFinished(), ModelView::ScientificSpinBoxEditor::onEditingFinished(), ModelView::ComboPropertyEditor::onIndexChanged(), ModelView::ExternalPropertyComboEditor::onIndexChanged(), ModelView::SelectableComboBoxEditor::onModelDataChanged(), ModelView::CustomEditor::setData(), ModelView::CustomEditor::setDataIntern(), ModelView::BoolEditor::update_components(), ModelView::ColorEditor::update_components(), ModelView::DoubleEditor::update_components(), ModelView::ExternalPropertyEditor::update_components(), ModelView::IntegerEditor::update_components(), update_components(), ModelView::ScientificSpinBoxEditor::update_components(), ModelView::SelectableComboBoxEditor::update_components(), and ModelView::SelectableComboBoxEditor::updateBoxLabel().

m_lineEdit

QLineEdit* ModelView::ScientificDoubleEditor::m_lineEdit

private

Definition at line 40 of file scientificdoubleeditor.h.

Referenced by ScientificDoubleEditor(), onEditingFinished(), and update_components().

m_validator

QDoubleValidator* ModelView::ScientificDoubleEditor::m_validator {nullptr}

private

Definition at line 41 of file scientificdoubleeditor.h.

Referenced by ScientificDoubleEditor(), and setRange().

Property Documentation

value

QVariant ModelView::CustomEditor::value

readwriteinherited

Definition at line 1 of file customeditor.h.

Referenced by ModelView::BoolEditor::onCheckBoxChange(), ModelView::DoubleEditor::setSingleStep(), and ModelView::BoolEditor::update_components().

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

• /home/www/ba/mvvm/viewmodel/mvvm/editors/scientificdoubleeditor.h
• /home/www/ba/mvvm/viewmodel/mvvm/editors/scientificdoubleeditor.cpp