[Development] Adding CPD support to Qt print dialog
gaurav.gen3 at gmail.com
Mon Sep 26 18:44:05 CEST 2022
Yes, CPDB is just a different backend for the existing print dialog GUI.
It's merely a different way of enumerating printers and their features.
I have already prepared a simple CPDB plugin (still requires a few
changes and additions) which can already respond to
On 9/26/22 21:30, Shawn Rutledge wrote:
>> On 2022 Sep 26, at 16:54, Volker Hilsheimer <volker.hilsheimer at qt.io>
>> I think it will be easier to understand what abstraction we need once
>> we have a patch to look at that implements CPDB support. That we
>> don’t have a QPA-level abstraction for print dialogs in Qt shouldn’t
>> block adding CPDB support.
>> However, rather than throwing more #if’ery complexity into
>> qprintdialog_unix.cpp it might be best to make a dedicated
>> implementation of a CPDB-dialog.
> But it was already pointed out that the widget dialog is intended to
> look exactly the same, right? This is not a native dialog, it’s just
> a different backend that the same old widget dialog should learn how
> to deal with, AFAIU. And qprintdialog_unix.cpp is really building up
> the widget hierarchy for it. It has a complex feature set. We
> haven’t been writing new widgets ourselves, and a few more #if’s will
> be less to maintain than a whole new widget-based dialog would be.
> Refactoring into whatever plugins or QPA stuff is worth discussing,
> but I guess it will be easier to visualize the refactoring after we’ve
> got something that works. And I haven’t dug into the implementation
> enough to think about whether anything there is reusable in Qt Quick.
> QPrinterInfo is public, so I guess the first natural “model” for the
> dialog is going to end up being the list returned from
> QPrinterInfo::availablePrinters() anyway.
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> Development at qt-project.org
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