| digiKam Developer Documentation Professional Photo Management with the Power of Open Source

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Public Member Functions | Protected Slots | List of all members
Digikam::ItemListModel Class Reference
Inheritance diagram for Digikam::ItemListModel:

## Public Member Functions
| ItemListModel (QWidget *const parent)
Public Member Functions inherited from Digikam::ItemThumbnailModel
| ItemThumbnailModel (QWidget *const parent)
| An ItemModel that supports thumbnail loading.
QVariant | data (const QModelIndex &index, int role=Qt::DisplayRole) const override
| Handles the ThumbnailRole.
bool | setData (const QModelIndex &index, const QVariant &value, int role=Qt::DisplayRole) override
| You can override the current thumbnail size by giving an integer value for ThumbnailRole.
void | setEmitDataChanged (bool emitSignal)
| Enable emitting dataChanged() when a thumbnail becomes available.
void | setExifRotate (bool rotate)
void | setPreloadThumbnails (bool preload)
| Enable preloading of thumbnails: If preloading is enabled, for every entry in the model a thumbnail generation is started.
void | setPreloadThumbnailSize (const ThumbnailSize &thumbSize)
| If you want to fix a size for preloading, do it here.
void | setThumbnailLoadThread (ThumbnailLoadThread *const thread)
| Enable thumbnail loading and set the thread that shall be used.
void | setThumbnailSize (const ThumbnailSize &thumbSize)
| Set the thumbnail size to use.
ThumbnailLoadThread * | thumbnailLoadThread () const
ThumbnailSize | thumbnailSize () const
Public Member Functions inherited from Digikam::ItemModel
| ItemModel (QObject *const parent=nullptr)
void | addItemInfo (const ItemInfo &info)
| Main entry point for subclasses adding image infos to the model.
void | addItemInfos (const QList< ItemInfo > &infos)
void | addItemInfos (const QList< ItemInfo > &infos, const QList< QVariant > &extraValues)
void | addItemInfosSynchronously (const QList< ItemInfo > &infos)
void | addItemInfosSynchronously (const QList< ItemInfo > &infos, const QList< QVariant > &extraValues)
void | addItemInfoSynchronously (const ItemInfo &info)
| addItemInfo() is asynchronous if a prepocessor is set.
void | clearItemInfos ()
| Clears image infos and resets model.
QVariant | data (const QModelIndex &index, int role=Qt::DisplayRole) const override
void | ensureHasGroupedImages (const ItemInfo &groupLeader)
| Ensure that all images grouped on the given leader are contained in the model.
void | ensureHasItemInfo (const ItemInfo &info)
| Add the given entries.
void | ensureHasItemInfos (const QList< ItemInfo > &infos)
void | ensureHasItemInfos (const QList< ItemInfo > &infos, const QList< QVariant > &extraValues)
Qt::ItemFlags | flags (const QModelIndex &index) const override
bool | hasImage (const ItemInfo &info) const
bool | hasImage (const ItemInfo &info, const QVariant &extraValue) const
bool | hasImage (qlonglong id) const
bool | hasImage (qlonglong id, const QVariant &extraValue) const
QVariant | headerData (int section, Qt::Orientation orientation, int role=Qt::DisplayRole) const override
qlonglong | imageId (const QModelIndex &index) const
qlonglong | imageId (int row) const
QList< qlonglong > | imageIds () const
QList< qlonglong > | imageIds (const QList< QModelIndex > &indexes) const
ItemInfo | imageInfo (const QModelIndex &index) const
ItemInfo | imageInfo (const QString &filePath) const
ItemInfo | imageInfo (int row) const
ItemInfo & | imageInfoRef (const QModelIndex &index) const
ItemInfo & | imageInfoRef (int row) const
QList< ItemInfo > | imageInfos () const
QList< ItemInfo > | imageInfos (const QList< QModelIndex > &indexes) const
QList< ItemInfo > | imageInfos (const QString &filePath) const
QModelIndex | index (int row, int column=0, const QModelIndex &parent=QModelIndex()) const override
QList< QModelIndex > | indexesForImageId (qlonglong id) const
QList< QModelIndex > | indexesForItemInfo (const ItemInfo &info) const
QList< QModelIndex > | indexesForPath (const QString &filePath) const
QModelIndex | indexForImageId (qlonglong id) const
QModelIndex | indexForImageId (qlonglong id, const QVariant &extraValue) const
QModelIndex | indexForItemInfo (const ItemInfo &info) const
QModelIndex | indexForItemInfo (const ItemInfo &info, const QVariant &extraValue) const
QModelIndex | indexForPath (const QString &filePath) const
bool | isEmpty () const
bool | isRefreshing () const
int | itemCount () const
bool | keepsFilePathCache () const
int | numberOfIndexesForImageId (qlonglong id) const
int | numberOfIndexesForItemInfo (const ItemInfo &info) const
void | removeIndex (const QModelIndex &indexes)
| Directly remove the given indexes or infos from the model.
void | removeIndexes (const QList< QModelIndex > &indexes)
void | removeItemInfo (const ItemInfo &info)
void | removeItemInfos (const QList< ItemInfo > &infos)
void | removeItemInfos (const QList< ItemInfo > &infos, const QList< QVariant > &extraValues)
int | rowCount (const QModelIndex &parent=QModelIndex()) const override
void | setItemInfos (const QList< ItemInfo > &infos)
| Clears and adds the infos.
void | setKeepsFilePathCache (bool keepCache)
| If a cache is kept, lookup by file path is fast, without a cache it is O(n).
DECLARE_MODEL_DRAG_DROP_METHODS void | setPreprocessor (QObject *const processor)
| Install an object as a preprocessor for ItemInfos added to this model.
void | setSendRemovalSignals (bool send)
| Enable sending of imageInfosAboutToBeRemoved and imageInfosRemoved signals.
void | setWatchFlags (const DatabaseFields::Set &set)
| Set a set of database fields to watch.
QList< ItemInfo > | uniqueItemInfos () const
void | unsetPreprocessor (QObject *const processor)
Public Member Functions inherited from Digikam::DragDropModelImplementation
| DragDropModelImplementation ()=default
| A class providing a sample implementation for a QAbstractItemModel redirecting drag-and-drop support to a handler.
virtual Qt::ItemFlags | dragDropFlags (const QModelIndex &index) const
| Call from your flags() method, adding the relevant drag drop flags.
Qt::ItemFlags | dragDropFlagsV2 (const QModelIndex &index) const
| This is an alternative approach to dragDropFlags().
AbstractItemDragDropHandler * | dragDropHandler () const
bool | dropMimeData (const QMimeData *, Qt::DropAction, int, int, const QModelIndex &)
virtual bool | isDragEnabled (const QModelIndex &index) const
virtual bool | isDropEnabled (const QModelIndex &index) const
QMimeData * | mimeData (const QModelIndexList &indexes) const
QStringList | mimeTypes () const
void | setDragDropHandler (AbstractItemDragDropHandler *handler)
| Set a drag drop handler.
Qt::DropActions | supportedDropActions () const
| Implements the relevant QAbstractItemModel methods for drag and drop.

## Protected Slots
void | slotCollectionImageChange (const CollectionImageChangeset &changeset)
Protected Slots inherited from Digikam::ItemThumbnailModel
void | slotThumbnailLoaded (const LoadingDescription &loadingDescription, const QPixmap &thumb)
void | slotThumbnailLoadedFromStorage (const LoadingDescription &loadingDescription, const QPixmap &thumb)
Protected Slots inherited from Digikam::ItemModel
virtual void | slotAlbumChange (const AlbumChangeset &changeset)
virtual void | slotImageChange (const ImageChangeset &changeset)
virtual void | slotImageTagChange (const ImageTagChangeset &changeset)

## Additional Inherited Members
Public Types inherited from Digikam::ItemModel
enum | ItemModelRoles { ItemModelPointerRole = Qt::UserRole , ItemModelInternalId = Qt::UserRole + 1 , ThumbnailRole = Qt::UserRole + 2 , CreationDateRole = Qt::UserRole + 3 , ExtraDataRole = Qt::UserRole + 5 , ExtraDataDuplicateCount = Qt::UserRole + 6 , LTLeftPanelRole = Qt::UserRole + 50 , LTRightPanelRole = Qt::UserRole + 51 , SubclassRoles = Qt::UserRole + 100 , FilterModelRoles = Qt::UserRole + 500 }
Public Slots inherited from Digikam::ItemThumbnailModel
void | preloadAllThumbnails ()
void | preloadThumbnails (const QList< ItemInfo > &)
| Preload thumbnail for the given infos resp.
void | preloadThumbnails (const QList< QModelIndex > &)
Public Slots inherited from Digikam::ItemModel
void | reAddingFinished ()
void | reAddItemInfos (const QList< ItemInfo > &infos, const QList< QVariant > &extraValues)
Signals inherited from Digikam::ItemThumbnailModel
void | thumbnailAvailable (const QModelIndex &index, int requestedSize)
void | thumbnailFailed (const QModelIndex &index, int requestedSize)
Signals inherited from Digikam::ItemModel
void | allRefreshingFinished ()
| Signals that the model has finished currently with all scheduled refreshing, full or incremental, and all preprocessing.
void | imageChange (const ImageChangeset &, const QItemSelection &)
| If an ImageChangeset affected indexes of this model with changes as set in watchFlags(), this signal contains the changeset and the affected indexes.
void | imageInfosAboutToBeAdded (const QList< ItemInfo > &infos)
| Informs that ItemInfos will be added to the model.
void | imageInfosAboutToBeRemoved (const QList< ItemInfo > &infos)
| Informs that ItemInfos will be removed from the model.
void | imageInfosAdded (const QList< ItemInfo > &infos)
| Informs that ItemInfos have been added to the model.
void | imageInfosRemoved (const QList< ItemInfo > &infos)
| Informs that ItemInfos have been removed from the model.
void | imageTagChange (const ImageTagChangeset &, const QItemSelection &)
| If an ImageTagChangeset affected indexes of this model, this signal contains the changeset and the affected indexes.
void | preprocess (const QList< ItemInfo > &infos, const QList< QVariant > &)
| Connect to this signal only if you are the current preprocessor.
void | processAdded (const QList< ItemInfo > &infos, const QList< QVariant > &)
void | readyForIncrementalRefresh ()
| Signals that the model is right now ready to start an incremental refresh.
Static Public Member Functions inherited from Digikam::ItemModel
static qlonglong | retrieveImageId (const QModelIndex &index)
static ItemInfo | retrieveItemInfo (const QModelIndex &index)
| Retrieves the imageInfo object from the data() method of the given index.
Protected Member Functions inherited from Digikam::ItemThumbnailModel
void | imageInfosCleared () override
| Called when the internal storage is cleared.
Protected Member Functions inherited from Digikam::ItemModel
void | emitDataChangedForAll ()
void | emitDataChangedForSelection (const QItemSelection &selection)
void | finishIncrementalRefresh ()
void | finishRefresh ()
bool | hasIncrementalRefreshPending () const
virtual void | prepareImageInfosAboutToBeRemoved (int, int)
| Called before rowsAboutToBeRemoved.
void | requestIncrementalRefresh ()
| As soon as the model is ready to start an incremental refresh, the signal readyForIncrementalRefresh() will be emitted.
void | startIncrementalRefresh ()
| Starts an incremental refresh operation.
void | startRefresh ()
| Subclasses that add ItemInfos in batches shall call startRefresh() when they start sending batches and finishRefresh() when they have finished.
Protected Attributes inherited from Digikam::DragDropModelImplementation
AbstractItemDragDropHandler * | m_dragDropHandler = nullptr

## Member Function Documentation

## ◆ slotCollectionImageChange

void Digikam::ItemListModel::slotCollectionImageChange | ( | const CollectionImageChangeset & | changeset | ) |
| protected slot

Note
  : necessary methods to add and remove ItemInfos to the model are inherited from ItemModel. ItemModel::imageInfosRemoved() is emitted when images are removed from the model because they are removed in the database.