[Development] QtPrintSupport - Platform Support
jlayt at kde.org
Sat Apr 28 17:38:49 CEST 2012
On Monday 23 Apr 2012 22:17:15 John Layt wrote:
> For Mac I propose moving QCocoaPrinterSupport into
> plugins/printsupport/cocoa and moving the private methods from
> QCocoaNativeInterface to
> QCocoaPrinterSupportPlugin. I'll do a patch.
> A harder question is where QMacPrintEngine should be, should it go to
> plugins/printsupport/cocoa, or to printsupport/kernel like the current
> Windows and Cups implementations? The QMacPrintDialog could have the same
> question, does it belong in plugins/printsupport/cocoa, or to
> printsupport/dialogs? I'm inclined to have all the platform specific code
> in the plugin if possible, and change Windows and Cups to match.
Well I've tried doing this and ended up moving QCocoaPrinterSupport,
QQMacPrintEngine and QCoreGraphicPaintEngine all into the the printsupport
plugin as they are all only used by QtPrintSupport, and as the plugin returns
the native QPrintEngine as its main purpose so it seems logical.
Unfortunately, QCoreGraphicsPaintEngine needs to link against the Cocoa
platform plugin to use classes/methods in QCocoaAutoReleasePool and
QCocoaHelpers, but I can't figure out how to do that in qmake. QtGui and
QtWidget both use these classes/methods as well, but I can't figure out how
they are linking against the Cocoa plugin. Any hints on linking qtcocoa into
cocoaprintersupport, or is that just not possible?
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