[Printing-architecture] [Printing-summit] Preview for CPD

Ira McDonald blueroofmusic at gmail.com
Thu Apr 16 10:29:49 PDT 2009


I agree with Glen's suggestion - default images for preview
should ALWAYS be the fallback - for the limited-resource
embedded environment REAL preview images are NOT a
good idea.

I also agree with Mike (and Glen) that displaying the default
image WHILE generating the real preview image is a friendly
design approach.

- Ira

Ira McDonald (Musician / Software Architect)
Chair - Linux Foundation Open Printing WG
Blue Roof Music/High North Inc
email: blueroofmusic at gmail.com
  579 Park Place  Saline, MI  48176
  PO Box 221  Grand Marais, MI 49839

On Thu, Apr 16, 2009 at 1:19 PM, Michael R Sweet <msweet at apple.com> wrote:
> Petrie, Glen wrote:
>> Peter, Till,
>> I believe my understanding from the print-summit was that the new CPD
>> would “always” preview the actual print content, which was based on
>> Peter’s usability test results.  The concern I have is that the
>> potential processing in creating the preview would include the entire
>> print chain; even though the image is at a very low resolution.  This
>> level of processing has a potential large time delay.   If the End-User
>> starts making print option changes that affect the preview; the preview
>> image will have to be re-rendered, which may take too much time.
>> I would like to suggest that the CPD add and use, as the default, an
>> internal default image that illustrates the print intent and print
>> options but not the actual print content.  This would reduce potential
>> heavy processing for the actual print content preview.  However, the
>> user should be able to enable display of the actual print content and
>> willing to accept the potential time delay in creating the actual print
>> content.
> *Or* you could display the default image while generating the actual
> preview image (with some sort of animated progress indicator/spinner)
> so that you get the best of both worlds.
> --
> ______________________________________________________________________
> Michael R Sweet                        Senior Printing System Engineer
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