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Add hashes to images

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Upon successfull reading an image file, this computes a SHA1 hash of the
image and saves it with the picture tag in the log file. When a file is
not successfully loaded (for example because the log was created on a
different computer) we look up the hash in a dictionary that maps hashes
to local file names.

That dictionary (actually two for both directions), is loaded on startup
and saved upon destruction of the main window.

Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Robert C. Helling 2015-02-26 14:39:42 +01:00 • committed by Dirk Hohndel
parent ea00fdb36a
commit b02bf002a6
11 changed files with 139 additions and 15 deletions
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9
qthelper.h
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@ -7,6 +7,7 @@
#include "dive.h"
#include "divelist.h"
#include <QTranslator>
#include <QDir>
// global pointers for our translation
extern QTranslator *qtTranslator, *ssrfTranslator;
@ -16,5 +17,11 @@ bool gpsHasChanged(struct dive *dive, struct dive *master, const QString &gps_te
extern "C" const char *printGPSCoords(int lat, int lon);
QList<int> getDivesInTrip(dive_trip_t *trip);
QString gasToStr(struct gasmix gas);
void read_hashes();
void write_hashes();
void updateHash(struct picture *picture);
QByteArray hashFile(const QString filename);
void add_hash(const QString filename, QByteArray &hash);
QString localFilePath(const QString originalFilename);
QString fileFromHash(char *hash);
#endif // QTHELPER_H