Hi jens,
I've tried to port my QAbstractListModel to a QSortFilterProxyModel.
But it keeps crashing as soon as i try to set data or accessing the ClipList m_clips member in any way.
Can the QSortFilterProxyModel provide more than one filtered model based on one set of data ? For example I need two lists based on the same model both with a different filter aktive.
@
class CoreEngine;
class ClipFilterModel : public QSortFilterProxyModel
{
Q_OBJECT
public:
ClipFilterModel(CoreEngine *parent = 0);
enum Roles {ObjectRole = Qt::UserRole, Fklz};
QHash<int, QByteArray> roleNames() const {
QHash<int, QByteArray> roles;
roles[ObjectRole] = "object";
roles[Fklz] = "fklz";
return roles;
}
QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
void addClip(ClipElement *clip);
int rowCount(const QModelIndex & parent = QModelIndex()) const;
void clear();
inline ClipList *getModelClipList() {return &this->m_clips;}
bool loadClipList();
private:
ClipList m_clips;
CoreEngine *core;
};
@
.cpp
@#include "clipfiltermodel.h"
#include <QtWidgets>
//! [0]
ClipFilterModel::ClipFilterModel(CoreEngine *parent)
: QSortFilterProxyModel(parent)
{
this->core = parent;
}
QVariant ClipFilterModel::data(const QModelIndex &index, int role) const {
if (!index.isValid())
return QVariant();
if (index.row() >= m_clips.size() || index.row() < 0)
return QVariant();
if (role == Fklz)
return QVariant::fromValue(this->m_clips.at(index.row())->getFklz());
else
return QVariant::fromValue(this->m_clips.at(index.row()));
}
void ClipFilterModel::addClip(ClipElement *clip)
{
beginInsertRows(QModelIndex(), rowCount(), rowCount());
m_clips.append(clip);
endInsertRows();
}
int ClipFilterModel::rowCount(const QModelIndex & /* parent */) const
{
return m_clips.count();
}
void ClipFilterModel::clear()
{
beginResetModel();
this->m_clips.clear();
endResetModel();
}
bool ClipFilterModel::loadClipList()
{
beginResetModel();
this->clear();
this->m_clips.append(this->core->getDBHandle()->getClipList());
endResetModel();
return true;
}
@
