KDEUI
#include <kmodelindexproxymapper.h>
Public Member Functions | |
KModelIndexProxyMapper (const QAbstractItemModel *leftModel, const QAbstractItemModel *rightModel, QObject *parent=0) | |
~KModelIndexProxyMapper () | |
QModelIndex | mapLeftToRight (const QModelIndex &index) const |
QModelIndex | mapRightToLeft (const QModelIndex &index) const |
QItemSelection | mapSelectionLeftToRight (const QItemSelection &selection) const |
QItemSelection | mapSelectionRightToLeft (const QItemSelection &selection) const |
Detailed Description
This class facilitates easy mapping of indexes and selections through proxy models.
In a complex system of proxy models there can be a need to map indexes and selections between them, and sometimes to do so without knowledge of the path from one model to another.
For example,
* Root model * | * / \ * Proxy 1 Proxy 3 * | | * Proxy 2 Proxy 4 *
If there is a need to map indexes between proxy 2 and proxy 4, a KModelIndexProxyMapper can be created to facilitate mapping of indexes between them.
Note that the aim is to achieve black box connections so that there is no need for application code to know the structure of proxy models in the path between left and right and attempt to manually map them.
* Root model * | * --------------- * | Black Box | * --------------- * | | * Proxy 2 Proxy 4 *
Definition at line 79 of file kmodelindexproxymapper.h.
Constructor & Destructor Documentation
KModelIndexProxyMapper::KModelIndexProxyMapper | ( | const QAbstractItemModel * | leftModel, |
const QAbstractItemModel * | rightModel, | ||
QObject * | parent = 0 |
||
) |
Constructor.
Definition at line 162 of file kmodelindexproxymapper.cpp.
KModelIndexProxyMapper::~KModelIndexProxyMapper | ( | ) |
Definition at line 168 of file kmodelindexproxymapper.cpp.
Member Function Documentation
QModelIndex KModelIndexProxyMapper::mapLeftToRight | ( | const QModelIndex & | index | ) | const |
Maps the index
from the left model to the right model.
Definition at line 173 of file kmodelindexproxymapper.cpp.
QModelIndex KModelIndexProxyMapper::mapRightToLeft | ( | const QModelIndex & | index | ) | const |
Maps the index
from the right model to the left model.
Definition at line 182 of file kmodelindexproxymapper.cpp.
QItemSelection KModelIndexProxyMapper::mapSelectionLeftToRight | ( | const QItemSelection & | selection | ) | const |
Maps the selection
from the left model to the right model.
Definition at line 213 of file kmodelindexproxymapper.cpp.
QItemSelection KModelIndexProxyMapper::mapSelectionRightToLeft | ( | const QItemSelection & | selection | ) | const |
Maps the selection
from the right model to the left model.
Definition at line 260 of file kmodelindexproxymapper.cpp.
The documentation for this class was generated from the following files:
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