UniqueValueListModel Class
A list model storing a list of unique values available in a unique value renderer. More...
| Header: | #include <UniqueValueListModel> |
| Since: | Esri::ArcGISRuntime 100.0 |
| Inherits: | QAbstractListModel and Esri::ArcGISRuntime::Iterable |
This class was introduced in Esri::ArcGISRuntime 100.0.
Public Types
| enum | UniqueValueRoles { UniqueValueDescriptionRole, UniqueValueLabelRole, UniqueValueValuesRole } |
Public Functions
| virtual | ~UniqueValueListModel() override |
| void | append(Esri::ArcGISRuntime::UniqueValue *uniqueValue) |
| void | clear() |
| bool | contains(Esri::ArcGISRuntime::UniqueValue *uniqueValue) const |
| Esri::ArcGISRuntime::UniqueValue * | first() const |
| int | indexOf(Esri::ArcGISRuntime::UniqueValue *uniqueValue) const |
| void | insert(int index, Esri::ArcGISRuntime::UniqueValue *uniqueValue) |
| bool | isEmpty() const |
| Esri::ArcGISRuntime::UniqueValue * | last() const |
| void | move(int from, int to) |
| void | removeAt(int index) |
| void | removeOne(Esri::ArcGISRuntime::UniqueValue *uniqueValue) |
Reimplemented Public Functions
| virtual Esri::ArcGISRuntime::UniqueValue * | at(int index) const override |
| virtual QVariant | data(const QModelIndex &index, int role = Qt::DisplayRole) const override |
| virtual int | size() const override |
Signals
| void | errorOccurred(Esri::ArcGISRuntime::Error error) |
| void | uniqueValueAdded(int index) |
| void | uniqueValueRemoved(int index) |
Detailed Description
Modifying this model (adding, removing, or moving) will update the unique values available in the unique value renderer.
This is a subclass of QAbstractListModel.
The model returns data for the following roles:
| Role | Type | Description | UniqueValueRoles |
|---|---|---|---|
| description | QString | The description of the unique value. | UniqueValueDescriptionRole |
| label | QString | The label used to display the unique value. | UniqueValueLabelRole |
| values | QVariantList | The attribute value or list of values that comprise the unique value. | UniqueValueValuesRole |
See also UniqueValueRenderer and UniqueValue.
Member Type Documentation
enum UniqueValueListModel::UniqueValueRoles
This enum specifies the custom roles which can be used with UniqueValueListModel::data.
| Constant | Value | Description |
|---|---|---|
Esri::ArcGISRuntime::UniqueValueListModel::UniqueValueDescriptionRole | Qt::UserRole + 1 | The description of the unique value. |
Esri::ArcGISRuntime::UniqueValueListModel::UniqueValueLabelRole | Qt::UserRole + 2 | The label used to display the unique value. |
Esri::ArcGISRuntime::UniqueValueListModel::UniqueValueValuesRole | Qt::UserRole + 3 | The attribute value or list of values that comprise the unique value. |
Member Function Documentation
[signal] void UniqueValueListModel::errorOccurred(Esri::ArcGISRuntime::Error error)
Signal emitted when an error occurs.
- error - Details about the error.
[signal] void UniqueValueListModel::uniqueValueAdded(int index)
Signal emitted when a unique value is added to the model.
index is the index of the added unique value.
[signal] void UniqueValueListModel::uniqueValueRemoved(int index)
Signal emitted when a unique value is removed from the model.
index is the index of the removed unique value.
[override virtual] UniqueValueListModel::~UniqueValueListModel()
Destructor.
void UniqueValueListModel::append(Esri::ArcGISRuntime::UniqueValue *uniqueValue)
Appends the uniqueValue to the unique value list model.
[override virtual] Esri::ArcGISRuntime::UniqueValue *UniqueValueListModel::at(int index) const
Returns the unique value at the specified index.
void UniqueValueListModel::clear()
Removes all unique values from the list model.
bool UniqueValueListModel::contains(Esri::ArcGISRuntime::UniqueValue *uniqueValue) const
Returns true if the provided uniqueValue is in the list model.
[override virtual] QVariant UniqueValueListModel::data(const QModelIndex &index, int role = Qt::DisplayRole) const
Reimplements: QAbstractItemModel::data(const QModelIndex &index, int role) const.
Returns the data stored under the given role for the unique value referred to by the index.
- index. The index in the model for which to return data.
- role. The role for which to return data.
Esri::ArcGISRuntime::UniqueValue *UniqueValueListModel::first() const
Returns the first unique value in the list model.
int UniqueValueListModel::indexOf(Esri::ArcGISRuntime::UniqueValue *uniqueValue) const
Returns the index of the provided uniqueValue in the list model.
void UniqueValueListModel::insert(int index, Esri::ArcGISRuntime::UniqueValue *uniqueValue)
Inserts a uniqueValue at a specified index in the list model.
bool UniqueValueListModel::isEmpty() const
Returns true if this list model is empty.
Esri::ArcGISRuntime::UniqueValue *UniqueValueListModel::last() const
Returns the last unique value in the list model.
void UniqueValueListModel::move(int from, int to)
Moves one unique value from an index in the list model to a different index.
void UniqueValueListModel::removeAt(int index)
Removes a unique value at the specified index in the list model.
void UniqueValueListModel::removeOne(Esri::ArcGISRuntime::UniqueValue *uniqueValue)
Removes the specified uniqueValue from the list model.
[override virtual] int UniqueValueListModel::size() const
Returns the number of unique values in the model.