QmitkMAPAlgorithmModel Class Reference

Qt table model exposing the meta-properties of a MatchPoint registration algorithm. More...

#include <QmitkMAPAlgorithmModel.h>

Inheritance diagram for QmitkMAPAlgorithmModel:

Collaboration diagram for QmitkMAPAlgorithmModel:

Public Member Functions
	QmitkMAPAlgorithmModel (QObject *parent=nullptr)
	Constructs the algorithm model. More...
	~QmitkMAPAlgorithmModel () override
	Destructor. More...
void	SetAlgorithm (map::algorithm::RegistrationAlgorithmBase *pAlgorithm)
	Sets the algorithm whose meta-properties should be displayed. More...
void	SetAlgorithm (map::algorithm::facet::MetaPropertyAlgorithmInterface *pMetaInterface)
	Sets the meta-property interface directly as data source. More...
Qt::ItemFlags	flags (const QModelIndex &index) const override
	Returns item flags for the given model index. More...
QVariant	data (const QModelIndex &index, int role) const override
	Returns data for the given model index and role. More...
QVariant	headerData (int section, Qt::Orientation orientation, int role) const override
	Returns header data for the table columns. More...
int	rowCount (const QModelIndex &parent=QModelIndex()) const override
	Returns the number of rows (meta-properties) in the model. More...
int	columnCount (const QModelIndex &parent=QModelIndex()) const override
	Returns the number of columns in the model. More...
bool	setData (const QModelIndex &index, const QVariant &value, int role=Qt::EditRole) override
	Sets a property value at the given index. More...

Detailed Description

Qt table model exposing the meta-properties of a MatchPoint registration algorithm.

This model wraps the MetaPropertyAlgorithmInterface of a MatchPoint algorithm and presents its configurable properties as a two-column table (Property / Value). An algorithm can be set as data source; the model retrieves all information through the MetaPropertyInterface. Editable properties (writable meta-properties) can be modified directly through the model, and changes are propagated back into the algorithm.

Supported meta-property types for display and editing: bool, int, unsigned int, long, unsigned long, float, double, and map::core::String. Unsupported types are shown with an error message.

Note

The model stores only a raw pointer to the MetaPropertyAlgorithmInterface. You must call SetAlgorithm(nullptr) or set a new algorithm before the previously set algorithm is destroyed.

See also

QmitkAlgorithmSettingsConfig, QmitkMapPropertyDelegate

Definition at line 46 of file QmitkMAPAlgorithmModel.h.

Constructor & Destructor Documentation

QmitkMAPAlgorithmModel()

QmitkMAPAlgorithmModel::QmitkMAPAlgorithmModel

(

QObject *

parent = nullptr

)

Constructs the algorithm model.

Parameters

[in]

parent

Optional parent QObject for Qt memory management.

~QmitkMAPAlgorithmModel()

QmitkMAPAlgorithmModel::~QmitkMAPAlgorithmModel ( )

inlineoverride

Destructor.

Definition at line 58 of file QmitkMAPAlgorithmModel.h.

Member Function Documentation

columnCount()

int QmitkMAPAlgorithmModel::columnCount ( const QModelIndex &  parent = QModelIndex() ) const

override

Returns the number of columns in the model.

Parameters

[in]

parent

The parent index. Must be invalid for a flat table model.

Returns

Always 2 (Property, Value), or 0 if the parent is valid.

data()

QVariant QmitkMAPAlgorithmModel::data ( const QModelIndex &  index, int  role  ) const

override

Returns data for the given model index and role.

Column 0 returns the property name (Qt::DisplayRole). Column 1 returns the property value for Qt::DisplayRole and Qt::EditRole (if the property is readable/writable).

Parameters

[in]	index	The model index to query.
[in]	role	The data role.

Returns

A QVariant containing the requested data, or an invalid QVariant.

flags()

Qt::ItemFlags QmitkMAPAlgorithmModel::flags ( const QModelIndex &  index ) const

override

Returns item flags for the given model index.

Items in the value column (column 1) are editable if the corresponding meta-property is writable and its type is supported.

Parameters

[in]

index

The model index to query.

Returns

Item flags including Qt::ItemIsEditable for writable properties.

headerData()

QVariant QmitkMAPAlgorithmModel::headerData ( int  section, Qt::Orientation  orientation, int  role  ) const

override

Returns header data for the table columns.

Provides "Property" for column 0 and "Value" for column 1 (Qt::DisplayRole, Qt::Horizontal).

Parameters

[in]	section	The column index.
[in]	orientation	The header orientation.
[in]	role	The data role.

Returns

A QVariant containing the header label, or an invalid QVariant.

rowCount()

int QmitkMAPAlgorithmModel::rowCount ( const QModelIndex &  parent = QModelIndex() ) const

override

Returns the number of rows (meta-properties) in the model.

Parameters

[in]

parent

The parent index. Must be invalid for a flat table model.

Returns

The number of meta-properties, or 0 if the parent is valid.

SetAlgorithm() [1/2]

void QmitkMAPAlgorithmModel::SetAlgorithm

(

map::algorithm::facet::MetaPropertyAlgorithmInterface *

pMetaInterface

)

Sets the meta-property interface directly as data source.

Resets the model and refreshes the property list from the given interface.

Parameters

[in]

pMetaInterface

Pointer to the meta-property interface. May be nullptr to clear.

SetAlgorithm() [2/2]

void QmitkMAPAlgorithmModel::SetAlgorithm

(

map::algorithm::RegistrationAlgorithmBase *

pAlgorithm

)

Sets the algorithm whose meta-properties should be displayed.

Attempts to cast the algorithm to MetaPropertyAlgorithmInterface and delegates to the overload accepting that interface.

Parameters

[in]

pAlgorithm

Pointer to the registration algorithm. May be nullptr to clear.

setData()

bool QmitkMAPAlgorithmModel::setData ( const QModelIndex &  index, const QVariant &  value, int  role = Qt::EditRole  )

override

Sets a property value at the given index.

Only operates on column 1 with Qt::EditRole. Attempts to cast the QVariant value to the matching meta-property type and writes it back to the algorithm. If successful, the model is reset to reflect the change.

Parameters

[in]	index	The model index (must be in column 1).
[in]	value	The new value to set.
[in]	role	Must be Qt::EditRole.

Returns

True if the value was successfully set, false otherwise.

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

• QmitkMAPAlgorithmModel.h