ModelView::ExternalPropertyComboEditor Class Reference

Custom editor for table/tree cells to select ExternalProperty from the list of external properties. More...

Inheritance diagram for ModelView::ExternalPropertyComboEditor:

Collaboration diagram for ModelView::ExternalPropertyComboEditor:

Public Types
using	callback_t = std::function< std::vector< ModelView::ExternalProperty >()>

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
	ExternalPropertyComboEditor (callback_t callback, QWidget *parent=nullptr)
QVariant	data () const
virtual bool	is_persistent () const
	Returns true if editor should remains alive after editing finished. More...
QSize	minimumSizeHint () const override
QSize	sizeHint () const override

Protected Slots
virtual void	onIndexChanged (int index)

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 Member Functions
int	internIndex ()
	Returns index for QComboBox. More...
void	setConnected (bool isConnected)
void	update_components () override
	Should update widget components from m_data, if necessary. More...

Private Attributes
QComboBox *	m_box {nullptr}
QStandardItemModel *	m_comboModel {nullptr}
callback_t	m_getPropertiesCallback

Detailed Description

Custom editor for table/tree cells to select ExternalProperty from the list of external properties.

Uses callbacks to retrieve vector of possible properties.

Definition at line 32 of file externalpropertycomboeditor.h.

Member Typedef Documentation

callback_t

using ModelView::ExternalPropertyComboEditor::callback_t = std::function<std::vector<ModelView::ExternalProperty>()>

Definition at line 36 of file externalpropertycomboeditor.h.

Constructor & Destructor Documentation

ExternalPropertyComboEditor()

ExternalPropertyComboEditor::ExternalPropertyComboEditor	(	callback_t	callback,
		QWidget *	parent = nullptr
	)

Definition at line 24 of file externalpropertycomboeditor.cpp.

    : CustomEditor(parent)
    , m_getPropertiesCallback(std::move(callback))
    , m_box(new QComboBox)
    , m_comboModel(new QStandardItemModel(this))
{
    setAutoFillBackground(true);
    setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
 
    auto layout = new QVBoxLayout;
    layout->setMargin(0);
    layout->setSpacing(0);
    layout->addWidget(m_box);
    setLayout(layout);
 
    m_box->setModel(m_comboModel);
 
    setConnected(true);
}

References m_box, m_comboModel, and setConnected().

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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().

internIndex()

int ExternalPropertyComboEditor::internIndex ( )

private

Returns index for QComboBox.

Definition at line 85 of file externalpropertycomboeditor.cpp.

{
    if (!m_data.canConvert<ModelView::ExternalProperty>())
        return 0;
 
    auto property = m_data.value<ModelView::ExternalProperty>();
    int result(-1);
    for (auto prop : m_getPropertiesCallback()) {
        ++result;
        if (property.identifier() == prop.identifier())
            return result;
    }
 
    return result;
}

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

Referenced by update_components().

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;
}

minimumSizeHint()

QSize ExternalPropertyComboEditor::minimumSizeHint ( ) const

override

Definition at line 49 of file externalpropertycomboeditor.cpp.

{
    return m_box->minimumSizeHint();
}

References m_box.

onIndexChanged

void ExternalPropertyComboEditor::onIndexChanged ( int  index )

protectedvirtualslot

Definition at line 54 of file externalpropertycomboeditor.cpp.

{
    auto property = m_data.value<ModelView::ExternalProperty>();
    auto mdata = m_getPropertiesCallback();
 
    if (index >= 0 && index < static_cast<int>(mdata.size())) {
        if (property != mdata[static_cast<size_t>(index)])
            setDataIntern(QVariant::fromValue(mdata[static_cast<size_t>(index)]));
    }
}

References ModelView::CustomEditor::m_data, m_getPropertiesCallback, and ModelView::CustomEditor::setDataIntern().

Referenced by setConnected().

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setConnected()

void ExternalPropertyComboEditor::setConnected ( bool  isConnected )

private

Definition at line 101 of file externalpropertycomboeditor.cpp.

{
    if (isConnected)
        connect(m_box, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
                &ExternalPropertyComboEditor::onIndexChanged, Qt::UniqueConnection);
    else
        disconnect(m_box, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
                   this, &ExternalPropertyComboEditor::onIndexChanged);
}

References m_box, and onIndexChanged().

Referenced by ExternalPropertyComboEditor(), and update_components().

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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(), ModelView::ScientificDoubleEditor::onEditingFinished(), ModelView::ScientificSpinBoxEditor::onEditingFinished(), ModelView::ComboPropertyEditor::onIndexChanged(), onIndexChanged(), and ModelView::SelectableComboBoxEditor::onModelDataChanged().

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sizeHint()

QSize ExternalPropertyComboEditor::sizeHint ( ) const

override

Definition at line 44 of file externalpropertycomboeditor.cpp.

{
    return m_box->sizeHint();
}

References m_box.

update_components()

void ExternalPropertyComboEditor::update_components ( )

overrideprivatevirtual

Should update widget components from m_data, if necessary.

Implements ModelView::CustomEditor.

Definition at line 65 of file externalpropertycomboeditor.cpp.

{
    setConnected(false);
 
    m_comboModel->clear();
 
    QStandardItem* parentItem = m_comboModel->invisibleRootItem();
    for (auto prop : m_getPropertiesCallback()) {
        auto item = new QStandardItem(QString::fromStdString(prop.text()));
        parentItem->appendRow(item);
        item->setData(prop.color(), Qt::DecorationRole);
    }
 
    m_box->setCurrentIndex(internIndex());
 
    setConnected(true);
}

References SessionItemUtils::DecorationRole(), internIndex(), m_box, m_comboModel, m_getPropertiesCallback, and setConnected().

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Member Data Documentation

m_box

QComboBox* ModelView::ExternalPropertyComboEditor::m_box {nullptr}

private

Definition at line 52 of file externalpropertycomboeditor.h.

Referenced by ExternalPropertyComboEditor(), minimumSizeHint(), setConnected(), sizeHint(), and update_components().

m_comboModel

QStandardItemModel* ModelView::ExternalPropertyComboEditor::m_comboModel {nullptr}

private

Definition at line 53 of file externalpropertycomboeditor.h.

Referenced by ExternalPropertyComboEditor(), and update_components().

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(), internIndex(), ModelView::ComboPropertyEditor::internLabels(), ModelView::BoolEditor::onCheckBoxChange(), ModelView::DoubleEditor::onEditingFinished(), ModelView::IntegerEditor::onEditingFinished(), ModelView::ScientificDoubleEditor::onEditingFinished(), ModelView::ScientificSpinBoxEditor::onEditingFinished(), ModelView::ComboPropertyEditor::onIndexChanged(), 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(), ModelView::ScientificDoubleEditor::update_components(), ModelView::ScientificSpinBoxEditor::update_components(), ModelView::SelectableComboBoxEditor::update_components(), and ModelView::SelectableComboBoxEditor::updateBoxLabel().

m_getPropertiesCallback

callback_t ModelView::ExternalPropertyComboEditor::m_getPropertiesCallback

private

Definition at line 51 of file externalpropertycomboeditor.h.

Referenced by internIndex(), onIndexChanged(), and update_components().

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