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mobile/divelist: derive MobileListModel from a base model

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In analogy to the DiveTripModel split, derive MobileListModel from a base
model that exports the roles, etc. This will allow us to create a second model,
which nevertheless possesses the same roles and all that without too much code
duplication.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2019-12-11 10:55:45 +01:00 • committed by Dirk Hohndel
parent 7e1ac2167b
commit 71b378aa82
2 changed files with 62 additions and 40 deletions
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31
qt-models/mobilelistmodel.h
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@ -1,10 +1,21 @@
// SPDX-License-Identifier: GPL-2.0
// This header files declares two linear models used by the mobile UI.
//
// MobileListModel presents a list of trips and optionally the dives of
// one expanded trip. It is used for quick navigation through trips.
//
// MobileDiveListModel gives a linearized view of all dives, sorted by
// trip. Even if there is temporal overlap of trips, all dives of
// a trip are listed in a contiguous block. This model is used for
// swiping through dives.
#ifndef MOBILELISTMODEL_H
#define MOBILELISTMODEL_H
#include "divetripmodel.h"
class MobileListModel : public QAbstractItemModel {
// This is the base class of the mobile-list model. All it does
// is exporting the various dive fields as roles.
class MobileListModelBase : public QAbstractItemModel {
Q_OBJECT
public:
enum Roles {
@ -44,6 +55,19 @@ public:
FirstGasRole,
SelectedRole,
};
QHash<int, QByteArray> roleNames() const override;
protected:
DiveTripModelBase *source;
MobileListModelBase(DiveTripModelBase *source);
private:
int columnCount(const QModelIndex &parent) const override;
QModelIndex index(int row, int column, const QModelIndex &parent) const override;
QModelIndex parent(const QModelIndex &index) const override;
};
class MobileListModel : public MobileListModelBase {
Q_OBJECT
public:
MobileListModel(DiveTripModelBase *source);
void expand(int row);
void unexpand();
@ -71,14 +95,9 @@ private:
static void updateRowAfterRemove(const IndexRange &range, int &row);
static void updateRowAfterMove(const IndexRange &range, const IndexRange &dest, int &row);
QVariant data(const QModelIndex &index, int role) const override;
QModelIndex index(int row, int column, const QModelIndex &parent) const override;
QModelIndex parent(const QModelIndex &index) const override;
int rowCount(const QModelIndex &parent) const override;
int columnCount(const QModelIndex &parent) const override;
QHash<int, QByteArray> roleNames() const override;
int shown() const;
DiveTripModelBase *source;
int expandedRow;
private slots:
void prepareRemove(const QModelIndex &parent, int first, int last);