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path: root/qt-models/divepicturemodel.cpp
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2018-07-08Dive pictures: detach ProfileWidget2 from DivePictureModelGravatar Berthold Stoeger
As long as ProfileWidget2 and DivePictureModel showed the same set of pictures and any change would lead to a full recalculation of the set, it made sense to let ProfileWidget2 use DivePictureModel's data. Recently, keeping the two lists in sync become more and more of a burden. Therefore, disconnect ProfileWidget2 and DivePictureModel. This will lead to some code-duplication and perhaps a temporary drop in UI-performance, but in the end the code is distinctly simpler and also more flexible. Thus, for example the DivePhotoTab could be changed to support headings without having to touch ProfileWidget2 at all. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-07-04Dive pictures: find moved pictures based on filenameGravatar Berthold Stoeger
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>
2018-07-03Dive pictures: remove unnecessary check for no divesGravatar Berthold Stoeger
This fixes a bug introduced in fbe1144eaf7e800a014c7a97b846835ba9f3bc7f: For an empty log, in DivePictureModel::updateDivePictures() beginResetModel() would be called without a corresponding endResetModel(). It is unclear whether this can ever be hit, because in the no-dives case, at least in the desktop version no profile is shown. Note, that this makes the check double-unnecessary. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-06-29Dive pictures: adjust rowDDEnd and rowDDStart on picture deletionv4.8.0Gravatar Berthold Stoeger
In DivePictureModel, rowDDEnd and rowDDStart specify the range of pictures in the profile plot. Obviously, these have to be adjusted when pictures are deleted. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-05-21qt-models: Change Q_UNUSED to no parameter nameGravatar jan Iversen
C++ permits use of parameters without name, which signals unused Signed-off-by: Jan Iversen <jani@apache.org>
2018-05-21Dive pictures: don't repopulate DivePictureModel on deletionGravatar Berthold Stoeger
On deletion of a single or multiple pictures, the whole DivePictureModel was repopulated, which was clearly visible in the UI, owing to the reconstructing of all images in the profile plot. To avoid this vexing behavior, implement proper deletion routines in DivePictureModel and ProfileWidget2. Since this needs sensible erase() semantics the QList<PictureEntry> member of DivePictureModel was replaced by a QVector. A QVector should be the default anyway, unless there are very specific reasons to use a QList (which actually is a deque, not a classical linked list). Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-05-21Dive pictures: change removePicture() interfaceGravatar Berthold Stoeger
The function removePicture() had a flag "last", which would indicate that the called had finished removing pictures. Only then would the model be recalculated. This is a strange interface and, matter of fact, the caller was buggy: if the last picture to be removed didn't have a proper url, removePicture() was never called with "last" being set. Change the interface to take a list of pictures to be deleted. This will allow us to make picture deletion smarter in follow-up commits. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-05-21Dive pictures: use modelReset signal when reseting picture listGravatar Berthold Stoeger
In the old code a combination of removeRows()/insertRows() was used to signal a model reset. Replace this by a single, modelReset signal. This saves a call to plotPictures() and will allow us to be smarter in the future, when removing pictures. Reset-model and remove-items are semantically different. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-05-13Dive pictures: Don't update all pictures on drag & drop to profileGravatar Berthold Stoeger
In the old code, we used to reload the whole picture list on drag & drop to the profile. Instead, only update the drag&dropped picture and repaint the profile-pictures. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-05-13Dive pictures: Move thumbnail-size to Thumbnailer classGravatar Berthold Stoeger
The size of the to-be-created thumbnails was passed from DivePictureModel to Thumbnailer. This became more and more bothersome, because the size had to be stored with the request. Calling from Thumbnailer into DivePictureModel was not an option, since this is not linked to all tests. Therefore, move these functions to the Thumbnailer class. Since the maximum thumbnail size is now known to the thumbnailer, the dummy and failure images can be precalculated, which makes switching between dives faster. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-05-13Dive pictures: Update pictures when thumbnails are readyGravatar Berthold Stoeger
Connect the thumbnailer signal to the dive picture model slot. This needs some code-reshuffling in the dive picture model. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-05-13Dive pictures: Introduce thumbnailer classGravatar Berthold Stoeger
Create a new class, which performs all thumbnailing code. This is mostly code reshuffling. Thumbnails are extracted either from a cache or thumbnail calculation is started in a worker thread. Since getHashedImage() is called from a worker thread it makes no sense to call subfunctions in yet another worker thread. Remove these calls. In contrast to the previous code, on error the background thread produces a failure image, but it is not yet shown. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-05-13Dive pictures: replace picture struct by QStringGravatar Berthold Stoeger
In imagedownloader.cpp the only thing we need from the picture struct is the filename. Therefore, use QStrings instead of the picture struct. This simplifies memory management. Remove the clone_picture() function, which is not needed anymore. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-05-13Dive pictures: turn SHashedImage class into getHashedImage() functionGravatar Berthold Stoeger
SHashedImage was a subclass of QImage, which fetched the image according to the filename hashes. Turn this into a function, as this is much more idiomatic and flexible. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-05-13Dive pictures: save thumbnails to individual filesGravatar Berthold Stoeger
The old code loaded all thumbnails into memory at once. This does not scale to logs with thousands of pictures. Therefore, save the pictures to individual files and only load the currently needed pictures. Currently, this will make changing switching between dives slower, because the thumbnails are loaded from disk. In the future, it is planned to do this in a background thread without blocking the user interface. A notable difference to the old code: Thumbnails are now indexed by the image-hash (i.e. the content of the raw image) and not by the filename of the image. Thus, different paths to the same image should only be saved once. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-05-13Dive pictures: Scale thumbnails on demandGravatar Berthold Stoeger
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>
2018-04-01Debug: sprinkle debug messages in thumbnailing codeGravatar Berthold Stoeger
To ease trouble-shooting of the picture thumbnailer add a number of debug- and info-messages. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at> Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com>
2018-03-14Cleanup: consistently use qPrintable()Gravatar Berthold Stoeger
Replace constructs of the kind s.toUtf8().data(), s.toUtf8().constData(), s.toLocal8Bit().data(), s.toLocal8Bit.constData() or qUtf8Printable(s) by qPrintable(s). This is concise, consistent and - in principle - more performant than the .data() versions. Sadly, owing to a suboptimal implementation, qPrintable(s) currently is a pessimization compared to s.toUtf8().data(). A fix is scheduled for new Qt versions: https://codereview.qt-project.org/#/c/221331/ Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2017-12-24beginInsertRows requires last >= firstGravatar Jan Mulder
Found while compiled against Qt 5.10 build from source. The assert Q_ASSERT(last >= first) is trapped by this beginInsertRows in case there are no pictures. Just do not call this when there are no pictures. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
2017-12-18Implement different zoom levels for dive photos tabGravatar Berthold Stoeger
This implements different zoom levels for the dive photos tab as suggested by Stefan Fuchs <sfuchs@gmx.de> in #898. The zoom level can be changed using a slider or CTRL+mousewheel. Zoom levels range from a third of the standard thumbnail size to thrice the standard thumbnail size. Thumbnails are cached in maximum resolution and scaled down on the fly. Because the profile widget took its pictures from the photo list model, an extra picture copy with a fixed size had to be introduced. The UI is still a bit crude. Reported-by: Stefan Fuchs <sfuchs@gmx.de> Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2017-12-18Make scaleImages() a static functionGravatar Berthold Stoeger
It was only used by the DivePictureModel class, no need to export it. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2017-12-15divepicturemodel: Reset start and end row for displayed_dive correctlyGravatar Stefan Fuchs
Correct way of using indices for rowDDstart and rowDDend. Reset rowDDstart and rowDDend at beginning of updating dive pictures. Signed-off-by: Stefan Fuchs <sfuchs@gmx.de>
2017-12-13Enable removal of pictures from different dives at the same momentGravatar Stefan Fuchs
Suggested-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at> Signed-off-by: Stefan Fuchs <sfuchs@gmx.de>
2017-12-13Dive pictures show pictures of all selected divesGravatar Stefan Fuchs
In the dive picture tab show pictures of all selected dive. But at the same moment take care that in the profile only pictures from displayed_dive are displayed. Signed-off-by: Stefan Fuchs <sfuchs@gmx.de>
2017-12-10Make thumbnail code threadsafeGravatar Berthold Stoeger
The thumbnailing in qt-models/divepicturemodel.cpp was performed concurrently, but the thumbnailCache was not protected from races. Resolve this by guarding the thumbnalCache accesses with mutexes. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2017-12-10Simplify DivePictureModelGravatar Berthold Stoeger
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>
2017-12-10Whitespace fixes in qt-models/divepicturemodel.cppGravatar Berthold Stoeger
Note that constructs like QList<QFuture<void>> is incompatible with pre-C++11 compilers. But the code base is so full of C++11isms that we may just as well remove asymmetric eye-sores of the kind "QList<QFuture<void> >". Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2017-04-29Add SPDX header to Qt modelsGravatar Dirk Hohndel
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2016-04-04Move subsurface-core to core and qt-mobile to mobile-widgetsGravatar Dirk Hohndel
Having subsurface-core as a directory name really messes with autocomplete and is obviously redundant. Simmilarly, qt-mobile caused an autocomplete conflict and also was inconsistent with the desktop-widget name for the directory containing the "other" UI. And while cleaning up the resulting change in the path name for include files, I decided to clean up those even more to make them consistent overall. This could have been handled in more commits, but since this requires a make clean before the build, it seemed more sensible to do it all in one. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2016-03-08Silence warnings in divepicturemodel.cppGravatar Tomaz Canabrava
Signed-off-by: Tomaz Canabrava <tomaz.canabrava@gmail.com> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2015-11-09Store Thumbnails with image hashesGravatar Robert C. Helling
This drastically improves the time it takes to select a dive with several pictures at the expense of longer startup and bigger hash files. Signed-off-by: Robert C. Helling <helling@atdotde.de> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2015-11-06Move ImageDownloader out of the desktop widgetsGravatar Dirk Hohndel
This required a bit more untangling, but with this it seems we can build subsurface-mobile again (at least on the desktop). Interesting is the removal from inside the ImageDownloader of the call to DivePictureModel::instance()->updateDivePictures() - which actually could cause some interesting recursion issues. If it turns out we did indeed need this, it needs to be re-architected. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2015-11-03Context menu for images: change DivePicture modelGravatar Guido Lerch
Altering DivePicture model to allow deleting images from the QListView without immediate updating of the list. Updating is determined by an additioanl parameter Signed-off-by: Guido Lerch <guido.lerch@gmail.com> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2015-10-03Make logical block match indentationGravatar Dirk Hohndel
Coverity CID 1325519 Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2015-08-15Add DiveSitePicturesModelGravatar Tomaz Canabrava
This model should be used inside the Edit Dive Site mode. It should display all photos from all dives that are part of this dive site, ignoring trips. Signed-off-by: Tomaz Canabrava <tomaz.canabrava@gmail.com> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2015-05-29Move DivePictureModel to qt-modelsGravatar Tomaz Canabrava
This class will surely be used on the mobile version, and it was very tangled inside divepicturewidget. Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>