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Add our own sort proxy class which provides two helper functions

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These can then be used from QML to map the index into the model (the sort
model corresponds directly to the indices in QML) to the dive id and back.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2016-01-28 18:23:14 -08:00
parent dbe9bad0aa
commit af9f07626a
2 changed files with 41 additions and 0 deletions
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29
qt-models/divelistmodel.cpp
View file

@ -2,6 +2,28 @@
#include "helpers.h"
#include <QDateTime>
DiveListSortModel::DiveListSortModel(QObject *parent) : QSortFilterProxyModel(parent)
{
}
int DiveListSortModel::getDiveId(int idx)
{
DiveListModel *mySourceModel = qobject_cast<DiveListModel *>(sourceModel());
return mySourceModel->getDiveId(mapToSource(index(idx,0)).row());
}
int DiveListSortModel::getIdxForId(int id)
{
for (int i = 0; i < rowCount(); i++) {
QVariant v = data(index(i, 0), DiveListModel::DiveRole);
DiveObjectHelper *d = v.value<DiveObjectHelper *>();
if (d->id() == id)
return i;
}
return -1;
}
DiveListModel *DiveListModel::m_instance = NULL;
DiveListModel::DiveListModel(QObject *parent) : QAbstractListModel(parent)
@ -52,6 +74,13 @@ int DiveListModel::rowCount(const QModelIndex &) const
return m_dives.count();
}
int DiveListModel::getDiveId(int idx) const
{
if (idx < 0 || idx >= m_dives.count())
return -1;
return m_dives[idx]->id();
}
QVariant DiveListModel::data(const QModelIndex &index, int role) const
{
if(index.row() < 0 || index.row() > m_dives.count())

12
qt-models/divelistmodel.h
View file

@ -2,11 +2,22 @@
#define DIVELISTMODEL_H
#include <QAbstractListModel>
#include <QSortFilterProxyModel>
#include "dive.h"
#include "helpers.h"
#include "subsurface-qt/DiveObjectHelper.h"
class DiveListSortModel : public QSortFilterProxyModel
{
Q_OBJECT
public:
DiveListSortModel(QObject *parent = 0);
public slots:
int getDiveId(int idx);
int getIdxForId(int id);
};
class DiveListModel : public QAbstractListModel
{
Q_OBJECT
@ -25,6 +36,7 @@ public:
void updateDive(int i, dive *d);
void clear();
int rowCount(const QModelIndex &parent = QModelIndex()) const;
int getDiveId(int idx) const;
QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
QHash<int, QByteArray> roleNames() const;
QString startAddDive();