subsurface/qt-models/divepicturemodel.h
Berthold Stoeger 0646b41275 Dive pictures: find moved pictures based on filename
Users might have edited their pictures. Therefore, instead of identifying
pictures by the hash of the file-content, use the file path. The match
between original and new filename is graded by a score. Currently, this
is the number of path components that match, starting from the filename.
Camparison is case-insensitive.

After having identified the matching images, write the caches so that they
are saved even if the user doesn't cleanly quit the application.

Since the new code uses significantly less resources, it can be run in a
single background thread. Thus, the multi-threading can be simplified.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-07-04 02:27:36 +08:00

41 lines
1.2 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 removePictures(const QVector<QString> &fileUrls);
int rowDDStart, rowDDEnd;
void updateDivePictureOffset(const QString &filename, int offsetSeconds);
public slots:
void setZoomLevel(int level);
void updateThumbnail(QString filename, QImage thumbnail);
private:
DivePictureModel();
QVector<PictureEntry> pictures;
int findPictureId(const QString &filename); // Return -1 if not found
double zoomLevel; // -1.0: minimum, 0.0: standard, 1.0: maximum
int size;
int defaultSize;
void updateThumbnails();
void updateZoom();
};
#endif