Catalogues can also be displayed by double clicking on the catalogue descriptor from a RiscOS filer window. When the cursor is moved over the catalogue entries i.e. album list it will change to a small arrow with a red or green rectangle attached to it. The red version indicates an album with no images whereas a green one indicates the album has images. The catalogue view looks like (book style) :
If the book style option has been selected the album is displayed in pages which can be "turnd" by pressing on the curled corner at the bottom left and bottom right of the book view. Both book style and filer style views show three icons:
or
Indicates that the images in the album are read-only or read-write.
or
Indicates that the album is linked to a RiscOS directory or unlinked (arbitrary collection).
or
Indicates that the data for the images can be modified or read-only (a view).
or
Indicates that the images can be copied to other albums or are only viewable.
Images can dragged to or from album views in exactly the same way as files in a RiscOS filer window. Multiple images can be selected by pressing the adjust button on the mouse.
For the curious, the picture is of Montrose Abbey with my mother just visible. The image has what appears to be wasted space above and below the image. However, this view uses a square area to display the detail view so that if a slideshow is started the window does not change shape or size if the image changes between portrait and lanscape formats. The slideshow "CD Buttons" are at the bottom and a slideshow can be started from any detail view.
A complete album can be displayed as a slideshow by selecting the "Slideshow" menu item from the album menu. The slideshow uses a detail view to display the images.
The items displayed in the data view are those that are selected from the "Exif Tags" window which can be edited by selecting "Tag Selection" menu item from the iconbar menu. However, all the tags can be viewed by selecting the "Show Tags" menu item from the data menu.
When items are modified the save icon (below) will become unfaded.
Pressing this icon will save the changes to the database.
Data can be copied from one data view to another
and there are two variations. Copying is initiated by dragging the copy icon from one window to another:
If the icon is dropped over a specific item then only that items data is copied from the source window.
If the icon is dropped anywhere
else in the data view window than all data items are copied.
Images can also be exported and if the ctrl-drag option is used then the images can be modified, for example a directory of sprites can be converted to jpegs.
The "Jpeg of exif" option simply adds a jpeg header to an EXIF file and so all the original EXIF data is preserved.
Some of the convert options will be greyed out depending on the format of the original and availability of conversion procedures.
Thumbcat will initially check for changes every 0.1s which slows down to a value determined by the user options. Thus old (forgotten?) links have a minimal impact on performance. Links can be dropped by selecting the link from the icon bar menu option "Drop External Link".