subsurface/qt-models/divepicturemodel.h
Berthold Stoeger c0bca3ad04 Dive pictures: Scale thumbnails on demand
To potentially conserve memory, don't keep copies of scaled thumbnails.
Scale the thumbnails on demand.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-05-13 13:52:35 -07:00

39 lines
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;
};
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);
int rowDDStart, rowDDEnd;
public slots:
void setZoomLevel(int level);
private:
DivePictureModel();
QList<PictureEntry> pictures;
double zoomLevel; // -1.0: minimum, 0.0: standard, 1.0: maximum
int defaultSize;
int size;
void updateThumbnails();
void updateZoom();
};
#endif