A read-only wrapper for a source model. More...
#include <Wt/WReadOnlyProxyModel>
Public Member Functions | |
WReadOnlyProxyModel (WObject *parent=0) | |
Constructor. | |
virtual WModelIndex | mapFromSource (const WModelIndex &sourceIndex) const |
Maps a source model index to the proxy model. | |
virtual WModelIndex | mapToSource (const WModelIndex &proxyIndex) const |
Maps a proxy model index to the source model. | |
virtual int | columnCount (const WModelIndex &parent=WModelIndex()) const |
Returns the number of columns. | |
virtual int | rowCount (const WModelIndex &parent=WModelIndex()) const |
Returns the number of rows. | |
virtual WModelIndex | parent (const WModelIndex &index) const |
Returns the parent for a model index. | |
virtual WModelIndex | index (int row, int column, const WModelIndex &parent=WModelIndex()) const |
Returns the child index for the given row and column. | |
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WAbstractProxyModel (WObject *parent=0) | |
Constructor. | |
virtual void | setSourceModel (WAbstractItemModel *sourceModel) |
Sets the source model. | |
WAbstractItemModel * | sourceModel () const |
Returns the source model. | |
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WAbstractItemModel (WObject *parent=0) | |
Creates a new data model. | |
virtual WFlags< ItemFlag > | flags (const WModelIndex &index) const |
Returns the flags for an item. | |
virtual WFlags< HeaderFlag > | headerFlags (int section, Orientation orientation=Horizontal) const |
Returns the flags for a header. | |
virtual bool | hasChildren (const WModelIndex &index) const |
Returns if there are children at an index. | |
virtual boost::any | data (const WModelIndex &index, int role=DisplayRole) const =0 |
Returns data at a specific model index. | |
virtual DataMap | itemData (const WModelIndex &index) const |
Returns all data at a specific index. | |
virtual boost::any | headerData (int section, Orientation orientation=Horizontal, int role=DisplayRole) const |
Returns the row or column header data. | |
virtual WModelIndexList | match (const WModelIndex &start, int role, const boost::any &value, int hits=-1, WFlags< MatchFlag > flags=WFlags< MatchFlag >(MatchStartsWith|MatchWrap)) const |
Returns an index list for data items that match. | |
boost::any | data (int row, int column, int role=DisplayRole, const WModelIndex &parent=WModelIndex()) const |
Returns the data item at the given column and row. | |
virtual bool | hasIndex (int row, int column, const WModelIndex &parent=WModelIndex()) const |
Returns if an index at the given position is valid (i.e. falls within the column-row bounds). | |
virtual bool | insertColumns (int column, int count, const WModelIndex &parent=WModelIndex()) |
Inserts one or more columns. | |
virtual bool | insertRows (int row, int count, const WModelIndex &parent=WModelIndex()) |
Inserts one or more rows. | |
virtual bool | removeColumns (int column, int count, const WModelIndex &parent=WModelIndex()) |
Removes columns. | |
virtual bool | removeRows (int row, int count, const WModelIndex &parent=WModelIndex()) |
Removes rows. | |
virtual bool | setData (const WModelIndex &index, const boost::any &value, int role=EditRole) |
Sets data at the given model index. | |
virtual bool | setItemData (const WModelIndex &index, const DataMap &values) |
Sets data at the given model index. | |
virtual bool | setHeaderData (int section, Orientation orientation, const boost::any &value, int role=EditRole) |
Sets header data for a column or row. | |
bool | setHeaderData (int section, const boost::any &value) |
Sets column header data. | |
virtual void | sort (int column, SortOrder order=AscendingOrder) |
Sorts the model according to a particular column. | |
virtual void | expandColumn (int column) |
Expands a column. | |
virtual void | collapseColumn (int column) |
Collapses a column. | |
virtual void * | toRawIndex (const WModelIndex &index) const |
Converts a model index to a raw pointer that remains valid while the model's layout is changed. | |
virtual WModelIndex | fromRawIndex (void *rawIndex) const |
Converts a raw pointer to a model index. | |
virtual std::string | mimeType () const |
Returns a mime-type for dragging a set of indexes. | |
virtual std::vector< std::string > | acceptDropMimeTypes () const |
Returns a list of mime-types that could be accepted for a drop event. | |
virtual void | dropEvent (const WDropEvent &e, DropAction action, int row, int column, const WModelIndex &parent) |
Handles a drop event. | |
bool | insertColumn (int column, const WModelIndex &parent=WModelIndex()) |
Inserts one column. | |
bool | insertRow (int row, const WModelIndex &parent=WModelIndex()) |
Inserts one row. | |
bool | removeColumn (int column, const WModelIndex &parent=WModelIndex()) |
Removes one column. | |
bool | removeRow (int row, const WModelIndex &parent=WModelIndex()) |
Removes one row. | |
bool | setData (int row, int column, const boost::any &value, int role=EditRole, const WModelIndex &parent=WModelIndex()) |
Sets data at the given row and column. | |
virtual Signal< WModelIndex, int, int > & | columnsAboutToBeInserted () |
Signal emitted before a number of columns will be inserted. | |
virtual Signal< WModelIndex, int, int > & | columnsAboutToBeRemoved () |
Signal emitted before a number of columns will be removed. | |
virtual Signal< WModelIndex, int, int > & | columnsInserted () |
Signal emitted after a number of columns were inserted. | |
virtual Signal< WModelIndex, int, int > & | columnsRemoved () |
Signal emitted after a number of columns were removed. | |
virtual Signal< WModelIndex, int, int > & | rowsAboutToBeInserted () |
Signal emitted before a number of rows will be inserted. | |
virtual Signal< WModelIndex, int, int > & | rowsAboutToBeRemoved () |
Signal emitted before a number of rows will be removed. | |
virtual Signal< WModelIndex, int, int > & | rowsInserted () |
Signal emitted after a number of rows were inserted. | |
virtual Signal< WModelIndex, int, int > & | rowsRemoved () |
Signal emitted after a number of rows were removed. | |
virtual Signal< WModelIndex, WModelIndex > & | dataChanged () |
Signal emitted when some data was changed. | |
virtual Signal< Orientation, int, int > & | headerDataChanged () |
Signal emitted when some header data was changed. | |
virtual Signal & | layoutAboutToBeChanged () |
Signal emitted when the layout is about to be changed. | |
virtual Signal & | layoutChanged () |
Signal emitted when the layout is changed. | |
virtual Signal & | modelReset () |
Signal emitted when the model was reset. | |
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WObject (WObject *parent=0) | |
Create a WObject with a given parent object. | |
virtual | ~WObject () |
Destructor. | |
virtual const std::string | id () const |
Returns the (unique) identifier for this object. | |
void | setObjectName (const std::string &name) |
Sets an object name. | |
virtual std::string | objectName () const |
Returns the object name. | |
void | resetLearnedSlots () |
Resets learned stateless slot implementations. | |
template<class T > | |
void | resetLearnedSlot (void(T::*method)()) |
Resets a learned stateless slot implementation. | |
template<class T > | |
WStatelessSlot * | implementStateless (void(T::*method)()) |
Declares a slot to be stateless and learn client-side behaviour on first invocation. | |
template<class T > | |
WStatelessSlot * | implementStateless (void(T::*method)(), void(T::*undoMethod)()) |
Declares a slot to be stateless and learn client-side behaviour in advance. | |
template<class T > | |
WStatelessSlot * | implementJavaScript (void(T::*method)(), const std::string &jsCode) |
Provides a JavaScript implementation for a method. | |
void | addChild (WObject *child) |
Adds a child object. | |
virtual void | removeChild (WObject *child) |
Removes a child object. | |
const std::vector< WObject * > & | children () const |
Returns the children. | |
WObject * | parent () const |
Returns the parent object. |
Additional Inherited Members | |
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typedef std::map< int, boost::any > | DataMap |
Data map. | |
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typedef std::map< WModelIndex, BaseItem * > | ItemMap |
A map for items. | |
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WModelIndex | createSourceIndex (int row, int column, void *ptr) const |
Create a source model index. | |
void | shiftModelIndexes (const WModelIndex &sourceParent, int start, int count, ItemMap &items) |
Utility methods to shift items in an item map. | |
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static WObject * | sender () |
Returns the sender of the current slot call. |
A read-only wrapper for a source model.
This is a simple proxy model which provides a read-only view on a source model. This is convenient for situations where you want to share a common read-only source model between different sessions.
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virtual |
Returns the number of columns.
This returns the number of columns at index parent
.
Implements Wt::WAbstractItemModel.
|
virtual |
Returns the child index for the given row and column.
When implementing this method, you can use createIndex() to create an index that corresponds to the item at row
and column
within parent
.
If the location is invalid (out of bounds at the parent), then an invalid index must be returned.
Implements Wt::WAbstractItemModel.
|
virtual |
Maps a source model index to the proxy model.
This method returns a model index in the proxy model that corresponds to the model index sourceIndex
in the source model. This method must only be implemented for source model indexes that are mapped and thus are the result of mapToSource().
Implements Wt::WAbstractProxyModel.
|
virtual |
Maps a proxy model index to the source model.
This method returns a model index in the source model that corresponds to the proxy model index proxyIndex
.
Implements Wt::WAbstractProxyModel.
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virtual |
Returns the parent for a model index.
An implementation should use createIndex() to create a model index that corresponds to the parent of a given index.
Note that the index itself may be stale (referencing a row/column within the parent that is outside the model geometry), but its parent (identified by the WModelIndex::internalPointer()) is referencing an existing parent. A stale index can only be used while the model geometry is being updated, i.e. during the emission of the corresponding [rows/columns](Being)[Removed/Inserted]() signals.
Implements Wt::WAbstractItemModel.
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virtual |
Returns the number of rows.
This returns the number of rows at index parent
.
Implements Wt::WAbstractItemModel.