[Digikam-devel] New Filterdialog option "Preview"

[Gilles Caulier]

2008/7/10 Andi Clemens <andi.clemens at gmx.net>:
> I have to rename the patch, this is not web compatible...
>
> patch:
> http://digikam3rdparty.free.fr/misc.tarballs/temp/filterdialog_previewmode/previewmode.patch
>
> So please try the new behavior and tell me what you think!
>

It will be better to :

- change the checkbox to a toggle button.
- move this button behind the preview area where all other preview
mode buttons are. You optimize preview area space available.
- for i18n, i recommend to not put tooltips/whatsthis for this button
until 0.9.4 is out.

Best

Gilles Caulier




> Andi
>
> On Thursday 10 July 2008 12:29:22 Andi Clemens wrote:
>> Hi,
>>
>> I have added a new option to the filterdialogs: a "Preview" checkbox.
>> Right now the filterdialog works as follows:
>> Some filters take a lot of computation time, even in PreviewMode. For this,
>> some of the filter dialogs have a "Try" button, where you can set your
>> settings, zoom in, move the preview area around and watch the results by
>> pressing the button.
>> But somehow this is a strange way to use those filters. If you move the
>> preview area for example, you have to hit "Try" all the time. Also when
>> changing the preview mode, you have to hit the button. This looks like
>> a "broken" dialog to me. When I'm in preview mode, I expect the preview to
>> update automatically, not by hitting a button.
>>
>> So here is the new behavior:
>> In normal mode, you can set your settings, zoom in and position the preview
>> area where you like to have it. Then you can hit the "preview" checkbox
>> like you would with the "Try" button. The difference is that now every
>> change in the filter settings will affect the preview, like hitting "Try"
>> all the time. I think this behavior is much more natural and is also used
>> in Photoshop or Gimp.
>>
>> Unfortunately i18n is frozen, so this change (if accepted) will never hit
>> the KDE3 version of digiKam...
>>
>> I'll provide a patch here, it fixes the filterdialog behavior in general.
>> Additionally the sharpen filter will be fixed with the patch, too. So you
>> can actually use one filter with the new behavior.
>>
>> patch:
>> http://digikam3rdparty.free.fr/misc.tarballs/temp/filterdialog_previewmode/
>>previewmode(%20+%20sharpenfilter).patch
>>
>> demo video:
>> http://digikam3rdparty.free.fr/misc.tarballs/temp/filterdialog_previewmode/
>>filterdialog_preview.mpg
>>
>> What do you think? For me it is a usability improvement, maybe we can use
>> it in further digiKam releases?
>>
>> The preview checkbox can be placed elsewhere of course if this is no good
>> place...
>> Also the preview mode buttons can be disabled if checkbox is not set, so it
>> is visually clear to the user that the normal view mode will not affect
>> anything.
>>
>> Andi
>
>
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