mirror of
https://bitbucket.org/smil3y/kde-extraapps.git
synced 2025-02-24 10:52:53 +00:00
27 lines
843 B
Text
27 lines
843 B
Text
|
This file is intended to keep notes about general coding stuff, code
|
||
|
|
conventions or how to best interact with certain parts of Qt.
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
Regarding QSortFilterProxyModel:
|
||
|
|
========================================
|
||
|
|
When subclassing QSortFilterProxyModel avoid the use of the following
|
||
|
|
calls on QModelIndex and use their equivalents of QAbstractItemModel:
|
||
|
|
|
||
|
|
inline QModelIndex QModelIndex::parent() const
|
||
|
|
inline QModelIndex QModelIndex::sibling(int arow, int acolumn) const
|
||
|
|
inline QModelIndex QModelIndex::child(int arow, int acolumn) const
|
||
|
|
inline QVariant QModelIndex::data(int arole) const
|
||
|
|
inline Qt::ItemFlags QModelIndex::flags() const
|
||
|
|
|
||
|
|
For Example when reimplementing QSortFilterProxyModel::data(const
|
||
|
|
QModelIndex &idx, int role):
|
||
|
|
|
||
|
|
Avoid:
|
||
|
|
idx.data(role);
|
||
|
|
|
||
|
|
Instead:
|
||
|
|
QModelIndex source_index = mapToSource(idx);
|
||
|
|
sourceModel()->data(idx, role);
|
||
|
|
|