[Shotwell] Tags enhancement

[Svetoslav Trochev]

Hi Everyone.

On Mon, Jun 21, 2010 at 4:55 AM, Peter DO Smith <pdo.smith at gmail.com> wrote:
> On Mon, Jun 21, 2010 at 1:37 PM, Bruno Girin <brunogirin at gmail.com> wrote:
>>
>> On Mon, 2010-06-21 at 11:33 +0200, Peter DO Smith wrote:
>> > I know that an enhancement for nested tags has been proposed but I would
>> > like to suggest a simpler and more powerful alternative. Why not use
>> > Ctrl-click to select two or more tags and display the subset of photos with
>> > those combined tags?
>>
>> So basically, if I understand it well, what you are asking for is to add
>> to the UI the ability to select photos based on a combination of tags,
>> such as:
>>      * All photos that have the tags "London", "Bus" and "Red"
>>      * All photos that have either the tag "Madrid" or "Barcelona"
>
> Yes, except I mean a logical AND
>
>>
>> That makes sense :-) The difficulty here is probably to come up with a
>> UI that is actually easy and intuitive to use.
>>
>
> Leave the UI as it is. You simply Control-Click on the tags to build
> up your tag selection (and change the colour of the marked tags)
>
Once I had a similar problem and I solved it by adding custom check
box in front of each tag in the list. My customization was that each
check box had 4 state instead of 2. My states were (V) tag, (O) tag, (
) not selected tag and (X) excluded tag. Also I needed meta tag.
"Without tag" The logic behind was. If the tag is selected with "V"
its added to the query with logical "AND" if it is selected with "O"
it is oded with "OR". If the tag is excluded with "X" its added to the
query with "NO" and some time I needed to select or exclude elements
without tags so by default all elements are tagged with tag:
"Undefined" and I did not have to modify the query instead using
meta-tag named "Without tag".

And this method did not interfered with people who liked to use nested
tag system. Personally I think that system with more then 2 levels of
tags is difficult to use in the long run. You end up with duplicated
tags. I do first level to be category: "People, Places, Assignment,
Family, and etc" and all individual tags are under each category.

SAL-e