subsurface/qt-models/divepicturemodel.h
Berthold Stoeger c73828d605 Simplify DivePictureModel
The code of DivePictureModel used a QHash to keep track of thumbnails.
Not only was the code rather complex - it also had the consequence that
pictures are sorted according to the hash function, i.e. seemingly
random.

This commit replaces the QHash by a simple QList which keeps track
of thumbnails and some meta-data.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2017-12-10 15:00:53 +01:00

38 lines
1.1 KiB
C++

// SPDX-License-Identifier: GPL-2.0
#ifndef DIVEPICTUREMODEL_H
#define DIVEPICTUREMODEL_H
#include <QAbstractTableModel>
#include <QImage>
#include <QFuture>
struct PictureEntry {
struct picture *picture;
QString filename;
QImage image;
int offsetSeconds;
};
// function that will scale the pixmap, used inside the QtConcurrent thread.
void scaleImages(PictureEntry &entry);
class DivePictureModel : public QAbstractTableModel {
Q_OBJECT
public:
static DivePictureModel *instance();
virtual int columnCount(const QModelIndex &parent = QModelIndex()) const;
virtual QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
virtual int rowCount(const QModelIndex &parent = QModelIndex()) const;
virtual void updateDivePictures();
void updateDivePicturesWhenDone(QList<QFuture<void>>);
void removePicture(const QString& fileUrl, bool last);
protected:
DivePictureModel();
// Currently, load the images on the fly
// Later, use a thread to load the images
// Later, save the thumbnails so we don't need to reopen every time.
QList<PictureEntry> pictures;
};
#endif