A list model of DistanceSymbolRange objects. More...
| Header: | #include <DistanceSymbolRangeListModel.h> |
| Since: | Esri::ArcGISRuntime 100.0 |
| Inherits: | QAbstractListModel and Esri::ArcGISRuntime::Iterable |
Public Types
| enum | DistanceSymbolRangeRoles { DistanceSymbolRangeMaxDistanceRole, DistanceSymbolRangeMinDistanceRole, DistanceSymbolRangeSymbolRole } |
Public Functions
| virtual | ~DistanceSymbolRangeListModel() override |
| void | append(Esri::ArcGISRuntime::DistanceSymbolRange *distanceSymbolRange) |
| void | clear() |
| bool | contains(Esri::ArcGISRuntime::DistanceSymbolRange *distanceSymbolRange) const |
| Esri::ArcGISRuntime::DistanceSymbolRange * | first() const |
| int | indexOf(Esri::ArcGISRuntime::DistanceSymbolRange *distanceSymbolRange) const |
| void | insert(int index, Esri::ArcGISRuntime::DistanceSymbolRange *distanceSymbolRange) |
| bool | isEmpty() const |
| Esri::ArcGISRuntime::DistanceSymbolRange * | last() const |
| void | move(int from, int to) |
| void | removeAt(int index) |
| void | removeOne(Esri::ArcGISRuntime::DistanceSymbolRange *distanceSymbolRange) |
Reimplemented Public Functions
| virtual Esri::ArcGISRuntime::DistanceSymbolRange * | 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(const Esri::ArcGISRuntime::Error &error) |
| void | itemAdded(int index) |
| void | itemRemoved(int index) |
Detailed Description
DistanceSymbolRangeListModel is used closely with DistanceCompositeSceneSymbol and DistanceSymbolRange to manage dynamic symbols based on distance from the Camera.
In the context of its use as a member object of DistanceCompositeSceneSymbol, modifying this model (adding, removing, or reordering items) will update the distance symbol ranges available in the distance composite scene symbol.
The model returns data for the following roles:
| Role | Type | Description | DistanceSymbolRangeRoles |
|---|---|---|---|
| maxDistance | double | The maximum distance range value. | DistanceSymbolRangeMaxDistanceRole |
| minDistance | double | The minimum distance range value. | DistanceSymbolRangeMinDistanceRole |
| symbol | Symbol | The symbol for the distance symbol range. | DistanceSymbolRangeSymbolRole |
Member Type Documentation
enum DistanceSymbolRangeListModel::DistanceSymbolRangeRoles
This enum specifies the custom roles which can be used with DistanceSymbolRangeListModel::data.
| Constant | Value | Description |
|---|---|---|
Esri::ArcGISRuntime::DistanceSymbolRangeListModel::DistanceSymbolRangeMaxDistanceRole | Qt::UserRole + 1 | The maximum distance range value. |
Esri::ArcGISRuntime::DistanceSymbolRangeListModel::DistanceSymbolRangeMinDistanceRole | Qt::UserRole + 2 | The minimum distance range value. |
Esri::ArcGISRuntime::DistanceSymbolRangeListModel::DistanceSymbolRangeSymbolRole | Qt::UserRole + 3 | The symbol for the distance symbol range. |
Member Function Documentation
[override virtual] DistanceSymbolRangeListModel::~DistanceSymbolRangeListModel ()
destructor
void DistanceSymbolRangeListModel::append(Esri::ArcGISRuntime::DistanceSymbolRange *distanceSymbolRange )
Appends a distanceSymbolRange object to the DistanceSymbolRangeListModel
[override virtual] Esri::ArcGISRuntime::DistanceSymbolRange *DistanceSymbolRangeListModel::at(int index) const
Returns the distanceSymbolRange at the specified index.
void DistanceSymbolRangeListModel::clear()
Removes all distance symbol ranges 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 DistanceSymbolRangeListModel::contains(Esri::ArcGISRuntime::DistanceSymbolRange *distanceSymbolRange ) const
Returns true if the list model contains the specified distanceSymbolRange.
[override virtual] QVariant DistanceSymbolRangeListModel::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 range referred to by the index.
- index. The index in the model for which to return data.
- role. The role for which to return data.
[signal] void DistanceSymbolRangeListModel::errorOccurred (const Esri::ArcGISRuntime::Error &error)
Signal emitted when an error occurs.
- error - Details about the error.
Esri::ArcGISRuntime::DistanceSymbolRange *DistanceSymbolRangeListModel::first() const
Returns the first distanceSymbolRange in the list model.
int DistanceSymbolRangeListModel::indexOf (Esri::ArcGISRuntime::DistanceSymbolRange *distanceSymbolRange ) const
Returns the index of the distanceSymbolRange specified.
void DistanceSymbolRangeListModel::insert(int index, Esri::ArcGISRuntime::DistanceSymbolRange *distanceSymbolRange )
Inserts a distanceSymbolRange at a specified index in the list model.
This method will append to the list model if the index is greater than the current size of the list.
bool DistanceSymbolRangeListModel::isEmpty () const
Returns whether this DistanceSymbolRangeListModel is empty.
[signal, since Esri::ArcGISRuntime 100.15] void DistanceSymbolRangeListModel::itemAdded (int index)
Signal emitted when an item is added to the list model.
- index - The index of the added item.
This function was introduced in Esri::ArcGISRuntime 100.15.
[signal, since Esri::ArcGISRuntime 100.15] void DistanceSymbolRangeListModel::itemRemoved (int index)
Signal emitted when an item is removed from the list model.
- index -The index of the removed item.
This function was introduced in Esri::ArcGISRuntime 100.15.
Esri::ArcGISRuntime::DistanceSymbolRange *DistanceSymbolRangeListModel::last() const
Returns the last distanceSymbolRange in the list model.
void DistanceSymbolRangeListModel::move(int from, int to)
Moves one distanceSymbolRange from an index in the list model to a different index.
void DistanceSymbolRangeListModel::removeAt (int index)
Removes a distanceSymbolRange 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 DistanceSymbolRangeListModel::removeOne (Esri::ArcGISRuntime::DistanceSymbolRange *distanceSymbolRange )
Removes the specified distanceSymbolRange 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 DistanceSymbolRangeListModel::size() const
Returns the number or rows in the list model.