On Mon, 23 May 2011 21:27:56 +0200, Eric Gregory <[email protected]> wrote:
On Sat, May 21, 2011 at 1:22 AM, Eivind LM <[email protected]> wrote:
In Cases 3c-d, it would be very useful to see the other photos that
would
be adjusted, highlighted among the other photos in the library (and in
the
new position after adjustment). This would help me to find the correct
time
adjustment parameter. It would also be useful to select a subset of the
highlighted photos (to exclude photos from a camera/directory/import
roll
that already has the correct time).
I'm thinking that maybe the only solution that would really work for all
the
cases you've mentioned is to allow the user to select one or more photos,
then apply a time offset to the selected photos. Does that seem like it
would work for you?
I agree with you that manual selection might be the only way that can work
for all cases of incorrect clock. So I think basing the feature on manual
selection is totally fine. At some point shotwell might let me select
photos from one import roll, and adjusting all photos from one import roll
(possibly with some exclutions) is my most common use case.
So let's assume we have a (manual) selection of photos that we wish to
shift in time. The current "Adjust Date and Time.." dialog does exactly
this (applies a time offset to the selected photos). But the main
limitation here is that it expects me to know the correct adjustment
parameter in advance. When the parameter is unknown, I have to apply some
guessed value to the photos, then (unless I guessed correctly) open the
dialog again and guess a new adjustment, and so on.
My feature request is a GUI that assists me to find the correct parameter
for a selection of photos quickly and without too much guessing.
There might be several ways to realize this, but I think the easiest way
would be to extend the "Adjust date and time" dialog such that the time on
the selected photos are updated whenever I make any change to the time
adjustment field (without closing the dialog). I can then first make big
steps in the time adjustment field to get the ordering approximately
right, then make smaller and smaller steps until I am happy with the photo
sequence. It must be possible to scroll and zoom the photo list behind the
dialog, so I can examine the sequence closely, without closing the dialog.
I close the dialog when I am happy with the sequence. If I cancel the
dialog, all times should be reset to their original value (for example in
case I realize the selection is incorrect and need to add or remove some
photos).
Another option would be to have a special GUI where I can specify that
"photo A was taken at the same time as photo B", and/or "photo D was taken
somewhere between photo E and F". After giving a couple of such
conditions, the time adjustment parameter could be found by solving a
system of equations. But that might be a bit overkill :)
Eivind
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