[Openicc] colord Printing Plans, CPD and Gutenprint

[Jan-Peter Homann]

Hello all,
I still think, that the process of creating a driver setup with an 
assigned profile should be done in the driver.
The color transform with should be outside the driver (e.g. p*toraster) 
or littleCMS after rendering to a bitmap for the printer.

If we want to have it "magically" for the user, we must shure, that user 
can choose from the differnt settings in the printing UI and colord gets 
the information which profile is valid for the the current setting.
So far as I know, is (or will be) CPD a common UI for handling printer 
driver settings.

So Gutenprint should make the actual settings (with assigned profiles) 
available to CPD (or another UI).
If the user chooses a setting we need to be shure, that Gutenprint tells 
colord, which profile is valid for the setting choosed by the user.

Furthermore, the experienced user should be able to have "Color expert 
Options" in the printing GUI (e.g. CPD) to deactivate colormanagement 
through printing a testchart for profiling.

In this case the printing UI (e.g. CPD) has directly to communicate with 
colord to deactive usage of profile in p*toraster.

If the testchart is printing and measured, the user will assign his 
individual profile to the Gutenprint setting through the Gutenprint UI. 
In this case, we need to be shure, that colord gets an update, that for 
an actual driver setting a new profile has been assigned.

Richard,
if I look at yout workflow. I get an impression, that colord setups 
p*toraster or foomatic RIP. But I don´t see:
- the layer, where the driver tells colord, which profils is assigned to 
actual driver setting
- the UI layer where the user chooses a driver setting

Please take in consideration, that in the described workflow, the 
process of assigning a profile to driver setting is always done in the 
driver and not GNOME Colormanager !!

Best regards
Jan-Peter

Am 27.02.11 22:28, schrieb Richard Hughes:
> On 26 February 2011 21:38, Jan-Peter Homann<homann at colormanagement.de>  wrote:
>> - driver setting (e.g. Gutenprint, Turboprint or future printer vemdor
>> drivers) have explicit settings with assigned profiles
> I'm doing this "above" gutenprint and the other vendor drivers, as we
> don't really want gutenprint and hpcups from talking to colord from a
> layering point of view. See
> http://colord.hughsie.com/img/cups-plan.png for details.
>
>> - These driver settings are e.g. presented through CPD to the enduser
> I'm not sure the user wants to interact with the ICC profile in this
> way. It should magically work without the user choosing a profile for
> a specific paper type.
>
>> - If the user chooses a driver setting in CPD, the assigned profile for the
>> driver setting is communicated to colord
>> - colord will configure the driver profile in p*toraster
> Yup.
>
> Richard.
>


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