SymbolLayerListModel Class
A list model storing a list of symbol layers available in a multi-layer symbol. More...
| Header: | #include <SymbolLayerListModel.h> |
| Since: | Esri::ArcGISRuntime 100.5 |
| Inherits: | QAbstractListModel and Esri::ArcGISRuntime::Iterable |
This class was introduced in Esri::ArcGISRuntime 100.5.
Public Types
| enum | SymbolLayerRoles { SymbolLayerTypeRole, ColorLockedRole, EnabledRole } |
Public Functions
| virtual | ~SymbolLayerListModel() override |
| void | append(Esri::ArcGISRuntime::SymbolLayer *symbolLayer) |
| void | append(const QList<Esri::ArcGISRuntime::SymbolLayer *> &symbolLayers) |
| void | clear() |
| bool | contains(Esri::ArcGISRuntime::SymbolLayer *symbolLayer) const |
| Esri::ArcGISRuntime::SymbolLayer * | first() const |
| int | indexOf(Esri::ArcGISRuntime::SymbolLayer *symbolLayer) const |
| void | insert(int index, Esri::ArcGISRuntime::SymbolLayer *symbolLayer) |
| bool | isEmpty() const |
| Esri::ArcGISRuntime::SymbolLayer * | last() const |
| void | move(int from, int to) |
| void | removeAt(int index) |
| void | removeOne(Esri::ArcGISRuntime::SymbolLayer *symbolLayer) |
Reimplemented Public Functions
| virtual Esri::ArcGISRuntime::SymbolLayer * | 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 | itemAdded(int index) |
| void | itemRemoved(int index) |
Detailed Description
Modifying this model (adding, removing, moving) will update the MultiLayerSymbol.
The model returns data for the following roles:
| Role | Type | Description | SymbolLayerRoles |
|---|---|---|---|
| symbolLayerType | Esri::ArcGISRuntime::SymbolLayerType | The type of symbol layer. The role is read-only. | SymbolLayerTypeRole |
| colorLocked | bool | Whether the symbol layer has been color locked. | ColorLockedRole |
| enabled | bool | Whether the symbol layer is enabled. | EnabledRole |
Member Type Documentation
enum SymbolLayerListModel::SymbolLayerRoles
This enum specifies the custom roles which can be used with SymbolLayerListModel::data.
| Constant | Value | Description |
|---|---|---|
Esri::ArcGISRuntime::SymbolLayerListModel::SymbolLayerTypeRole | Qt::UserRole + 1 | The type of symbol layer. |
Esri::ArcGISRuntime::SymbolLayerListModel::ColorLockedRole | Qt::UserRole + 2 | If the symbol layer is color locked. |
Esri::ArcGISRuntime::SymbolLayerListModel::EnabledRole | Qt::UserRole + 3 | If the symbol layer is enabled. |
Member Function Documentation
[signal] void SymbolLayerListModel::errorOccurred (Esri::ArcGISRuntime::Error error)
Signal emitted when an error occurs.
- error - Details about the error.
[signal] void SymbolLayerListModel::itemAdded (int index)
Signal emitted when an item is added to the list model.
index is the index of the added item.
This function was introduced in Esri::ArcGISRuntime 100.15.
[signal] void SymbolLayerListModel::itemRemoved (int index)
Signal emitted when an item is removed from the list model.
index is the index of the removed item.
This function was introduced in Esri::ArcGISRuntime 100.15.
[override virtual] SymbolLayerListModel::~SymbolLayerListModel ()
Destructor.
void SymbolLayerListModel::append(Esri::ArcGISRuntime::SymbolLayer *symbolLayer )
Appends symbolLayer to the symbol layer list model.
void SymbolLayerListModel::append(const QList<Esri::ArcGISRuntime::SymbolLayer *> &symbolLayers )
Appends symbolLayers to the symbol layer list model.
[override virtual] Esri::ArcGISRuntime::SymbolLayer *SymbolLayerListModel::at(int index) const
Returns the SymbolLayer at the specified index.
void SymbolLayerListModel::clear()
Removes all symbol layers from the list model.
List models do not take ownership of the objects they contain. Therefore, removing or clearing objects from the list model will not delete those objects. An RAII technique should be used to ensure that memory is properly deallocated.
bool SymbolLayerListModel::contains(Esri::ArcGISRuntime::SymbolLayer *symbolLayer ) const
Returns true if the list model contains the specified symbolLayer.
[override virtual] QVariant SymbolLayerListModel::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 symbol 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::SymbolLayer *SymbolLayerListModel::first() const
Returns the first symbol layer in the list model.
int SymbolLayerListModel::indexOf (Esri::ArcGISRuntime::SymbolLayer *symbolLayer ) const
Returns the index of the symbolLayer specified.
void SymbolLayerListModel::insert(int index, Esri::ArcGISRuntime::SymbolLayer *symbolLayer )
Inserts a symbolLayer at a specified index in the list model.
This method will append to the list if the index is greater than the current size of the list model.
bool SymbolLayerListModel::isEmpty () const
Returns true if the list model contains no symbol layers.
Esri::ArcGISRuntime::SymbolLayer *SymbolLayerListModel::last() const
Returns the last symbol layer in the list model.
void SymbolLayerListModel::move(int from, int to)
Moves one symbolLayer from an index in the list model to a different index.
void SymbolLayerListModel::removeAt (int index)
Removes a symbol at the specified index.
List models do not take ownership of the objects they contain. Therefore, removing or clearing objects from the list model will not delete those objects. An RAII technique should be used to ensure that memory is properly deallocated.
void SymbolLayerListModel::removeOne (Esri::ArcGISRuntime::SymbolLayer *symbolLayer )
Removes the specified symbolLayer from the list model.
List models do not take ownership of the objects they contain. Therefore, removing or clearing objects from the list model will not delete those objects. An RAII technique should be used to ensure that memory is properly deallocated.
[override virtual] int SymbolLayerListModel::size() const
Returns the number of symbol layers contained in the list model.