id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
9274	[PATCH] GeoImageLayer functionality enhancements	holgermappt	team	"This patch adds functionality to the GeoImageLayer.  Added functionality includes:
* flag for changed GPS data
* switch thumbnail display on and off
* create the layer with more options
* query current photo
* usability enhancements

Most of the new functionality is needed for a plug-in that I wrote.  That plug-in implements ticket #7712.

Detailed changes:
* Flag ImageEntry.isNewGpsData: The current mode allows to set the coordinates of a photo if it is correlated with a GPX track.  That always sets gpsTime, thus gpsTime is used to decide which photo has new coordinates.  But there are ways to set the coordinates that do not provide a time.  The idea is to use isNewGpsData instead to flag that one of the GPS related data changed.  ImageEntry.exifGpsTime is a temporary source of the GPS time and extracted from EXIF.
* Thumbnail toggle feature: GeoImageLayer.useThumbs now acts a thumbnail/symbol toggle variable.
* More GeoImageLayer constructors for different combinations of layer name and thumbnail display status.  I use the ""name"" to create a layer with untagged photos.
* GeoImageLayer.getPhotoUnderMouse() is used to query the photo that is dragged.
* GeoImageLayer.removePhotoByIdx() can be used to remove e.g. untagged photos from current layer.
* GeoImageLayer.clearCurrentPhoto() / clearOtherCurrentPhotos(): The current implementation highlights one photo per GeoImageLayer, which is confusing if there is more than one such layer.  The functions clear the select marker from the other layers.
* GeoImageLayer.supportedMapModes / registerSupportedMapMode() / isSupportedMapMode(): Allows to register more modes where the functionality of the GeoImageLayer should be available.  This is mainly the possibility to click on a photo that is selected and displayed.
* ImageViewerDialog.displayImage().imageChanged: I re-display a photo if GPS data was changed to update the photo OSD.  The flags keeps the current zoom and the area of the photo that is displayed.
* ImageViewerDialog.getCurrentImage() / getCurrentLayer(): Used to query which photo is displayed.  That photo can then be positioned on the map.
* GeoImageSessionExporter / GeoImageSessionImporter: Added show-thumbnails (useThumbs), is-new-gps-data (isNewGpsData), exif-gps-time (exifGpsTime).  Fixed exif-orientation tag name in importer.
"	enhancement	closed	normal	13.12	Core	latest	fixed	geoimage, GeoImageLayer