Re: [Development] Request for new Playground Repo
We actually have got a few more APIs which we would move to that
repository either right now, or later when it becomes an add-on. Some of
those APIs need to go under a review to sort our what would be the place
to put them in.
For now, we are asking for a home to start with.
Cheers!
--
Vladimir
On 20.11.13 23:47, André Pönitz
andre.poen...@mathematik.tu-chemnitz.de wrote:
On Wed, Nov 20, 2013 at 07:51:34PM +, Knoll Lars wrote:
On 20/11/13 20:36, Andrew Wooster awoos...@blackberry.com wrote:
Hi, I'd like to request the creation of a new playground repository.
Name: BlackBerry Extras
Description: A repository for creating BlackBerry specific APIs that
are
useful for implementing Qt functionality.
Let me know if there are any questions.
If the purpose is the same as the other QPlatformExtras modules, I¹m
happy
to add it.
I am not.
The general approach is wrong, for several reasons:
1. Splitting the platform extras already on the module level means that
everybody who wants to use some of the extras even buried behind #ifdef's
somewhere deep in his code has to add platform specific conditional code
like
!isEmpty(QT.x11extras.name) {
QT += x11extras
DEFINES += I_CAN_USE_X11EXTRAS
} else {
warning(x11extras module not found, )
}
to his buildsystem(s), for each of the platforms he want to fully
support. This is a maintanance burden not just for the buildsystem itself
but also extends to conditional packaging/installation.
2. The setup is inherently fragile as only part of the code is used, and
part
not even checked on a specific developer's machine at a time, bearing the
risk of the classic compile fix or CI ping pong.
3. The approach does not scale as it does not offer a natural place for
features that are not available on all platforms, but on more then one.
Putting random sort-of-sharable code into qtbase is not a good alternative
either.
There is no perfect solution, but the further down the conditionals
are in the code the less impact they have on all three aspects, and
the more code can be shared between the backends.
Merging the platform into a single module with fat #ifdefs QT_OS_XYZ
in the headers would already alleviate the problem on the build system
level, and upwards (packaging...), while providing the same interface
to the actual code. That'd be a uniform improvemnt over the current setup.
Andre'
___
Development mailing list
Development@qt-project.org
http://lists.qt-project.org/mailman/listinfo/development
-
This transmission (including any attachments) may contain confidential
information, privileged material (including material protected by the
solicitor-client or other applicable privileges), or constitute non-public
information. Any use of this information by anyone other than the intended
recipient is prohibited. If you have received this transmission in error,
please immediately reply to the sender and delete this information from your
system. Use, dissemination, distribution, or reproduction of this transmission
by unintended recipients is not authorized and may be unlawful.
___
Development mailing list
Development@qt-project.org
http://lists.qt-project.org/mailman/listinfo/development
Re: [Development] Request for new Playground Repo
On Wednesday, 2013-11-20, 19:36:00, Andrew Wooster wrote: Hi, I'd like to request the creation of a new playground repository. Name: BlackBerry Extras Description: A repository for creating BlackBerry specific APIs that are useful for implementing Qt functionality. Let me know if there are any questions. Since I saw PPS being mentioned as one of the extra APIs, isn't that also available on stock QNX? I.e. would it make sense to follow the naming used for the QPA or is the plan to mostly add BB specific APIs? Cheers, Kevin -- Kevin Krammer | kevin.kram...@kdab.com | Software Engineer Klarälvdalens Datakonsult AB, a KDAB Group company Tel. Sweden (HQ) +46-563-540090, USA +1-866-777-KDAB(5322) KDAB - Qt Experts - Platform-independent software solutions smime.p7s Description: S/MIME cryptographic signature ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
Re: [Development] Request for new Playground Repo
Hi, so unless this is going to be a huge beast, maybe qtbase would be actually a better target? I agree that it would be much better to have it in QtBase, if this is possible. Above all, because certain parts there use PPS (e.g. QPA and Locale). And it is not a huge beast (see https://qt.gitorious.org/qt/qtlocation/source/469cbf8f601270ac0b030202ae303939ba4c63ff:src/plugins/position/blackberry/bb) Fabian From: development-bounces+fbumberger=blackberry@qt-project.org [development-bounces+fbumberger=blackberry@qt-project.org] on behalf of Kevin Krammer [kevin.kram...@kdab.com] Sent: Thursday, November 21, 2013 10:03 AM To: development@qt-project.org Subject: Re: [Development] Request for new Playground Repo On Wednesday, 2013-11-20, 19:36:00, Andrew Wooster wrote: Hi, I'd like to request the creation of a new playground repository. Name: BlackBerry Extras Description: A repository for creating BlackBerry specific APIs that are useful for implementing Qt functionality. Let me know if there are any questions. Since I saw PPS being mentioned as one of the extra APIs, isn't that also available on stock QNX? I.e. would it make sense to follow the naming used for the QPA or is the plan to mostly add BB specific APIs? Cheers, Kevin -- Kevin Krammer | kevin.kram...@kdab.com | Software Engineer Klarälvdalens Datakonsult AB, a KDAB Group company Tel. Sweden (HQ) +46-563-540090, USA +1-866-777-KDAB(5322) KDAB - Qt Experts - Platform-independent software solutions - This transmission (including any attachments) may contain confidential information, privileged material (including material protected by the solicitor-client or other applicable privileges), or constitute non-public information. Any use of this information by anyone other than the intended recipient is prohibited. If you have received this transmission in error, please immediately reply to the sender and delete this information from your system. Use, dissemination, distribution, or reproduction of this transmission by unintended recipients is not authorized and may be unlawful. ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
Re: [Development] Request for new Playground Repo
Let's realize that there are probably 2 separate categories of code worth talking about, and then also some overlap: A - common code for internal implementation ie a PpsObject class would be used to implement many standard Qt APIs on the BB/QNX platform B - useful code _for enduser developers_ that is only on one (or maybe 2) platform(s) ie maybe Android Intent classes (or BlackBerry Invoke) if a reasonable cross-platform common API can't be found Code like this is useful to get developers to use Qt - you don't want someone to say I'd use Qt except it doesn't give me access to special X on platform Y A+B - code that falls into both categories PpsObject might fall into this category - it is useful for internal implementation, but also useful for QNX-specific parts of a mostly cross-platform app. I'd like locations for both A and B. I suspect different locations. And the A+B stuff is probably A stuff wrapped by classes in B. -Original Message- From: development-bounces+tvaneerd=rim@qt-project.org [mailto:development-bounces+tvaneerd=rim@qt-project.org] On Behalf Of Fabian Bumberger Sent: Thursday, November 21, 2013 4:16 AM To: development@qt-project.org; oswald.buddenha...@digia.com Subject: Re: [Development] Request for new Playground Repo Hi, so unless this is going to be a huge beast, maybe qtbase would be actually a better target? I agree that it would be much better to have it in QtBase, if this is possible. Above all, because certain parts there use PPS (e.g. QPA and Locale). And it is not a huge beast (see https://qt.gitorious.org/qt/qtlocation/source/469cbf8f601270ac0b030202a e303939ba4c63ff:src/plugins/position/blackberry/bb) Fabian From: development-bounces+fbumberger=blackberry@qt-project.org [development-bounces+fbumberger=blackberry@qt-project.org] on behalf of Kevin Krammer [kevin.kram...@kdab.com] Sent: Thursday, November 21, 2013 10:03 AM To: development@qt-project.org Subject: Re: [Development] Request for new Playground Repo On Wednesday, 2013-11-20, 19:36:00, Andrew Wooster wrote: Hi, I'd like to request the creation of a new playground repository. Name: BlackBerry Extras Description: A repository for creating BlackBerry specific APIs that are useful for implementing Qt functionality. Let me know if there are any questions. Since I saw PPS being mentioned as one of the extra APIs, isn't that also available on stock QNX? I.e. would it make sense to follow the naming used for the QPA or is the plan to mostly add BB specific APIs? Cheers, Kevin -- Kevin Krammer | kevin.kram...@kdab.com | Software Engineer Klarälvdalens Datakonsult AB, a KDAB Group company Tel. Sweden (HQ) +46-563-540090, USA +1-866-777-KDAB(5322) KDAB - Qt Experts - Platform-independent software solutions - This transmission (including any attachments) may contain confidential information, privileged material (including material protected by the solicitor-client or other applicable privileges), or constitute non- public information. Any use of this information by anyone other than the intended recipient is prohibited. If you have received this transmission in error, please immediately reply to the sender and delete this information from your system. Use, dissemination, distribution, or reproduction of this transmission by unintended recipients is not authorized and may be unlawful. ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development - This transmission (including any attachments) may contain confidential information, privileged material (including material protected by the solicitor-client or other applicable privileges), or constitute non-public information. Any use of this information by anyone other than the intended recipient is prohibited. If you have received this transmission in error, please immediately reply to the sender and delete this information from your system. Use, dissemination, distribution, or reproduction of this transmission by unintended recipients is not authorized and may be unlawful. ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
Re: [Development] Request for new Playground Repo
On 21.11.13 10:03, Kevin Krammer kevin.kram...@kdab.com wrote: On Wednesday, 2013-11-20, 19:36:00, Andrew Wooster wrote: Hi, I'd like to request the creation of a new playground repository. Name: BlackBerry Extras Description: A repository for creating BlackBerry specific APIs that are useful for implementing Qt functionality. Let me know if there are any questions. Since I saw PPS being mentioned as one of the extra APIs, isn't that also available on stock QNX? Yes, it is. We can target to make a new API for PPS which would unify advantages of all current implementations and approaches. Still the fact remains that a few things work on bare QNX in a different way than on BB10 because the latter is a complete application platform and the former is just a pure OS. I.e. would it make sense to follow the naming used for the QPA or is the plan to mostly add BB specific APIs? Does this mean considering QNX are a core platform and BB10 sitting on top of it? This sounds sensible. -- vm - This transmission (including any attachments) may contain confidential information, privileged material (including material protected by the solicitor-client or other applicable privileges), or constitute non-public information. Any use of this information by anyone other than the intended recipient is prohibited. If you have received this transmission in error, please immediately reply to the sender and delete this information from your system. Use, dissemination, distribution, or reproduction of this transmission by unintended recipients is not authorized and may be unlawful. ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
Re: [Development] Request for new Playground Repo
On 11/20/2013 10:20 PM, Oswald Buddenhagen wrote: so unless this is going to be a huge beast, maybe qtbase would be actually a better target? Even better if we could get the PPS parsing code directly into qtbase. As already posted, that comprises only a few files. Is everybody fine with that? We might need a blackberry extras repo for other things later though... Peter - This transmission (including any attachments) may contain confidential information, privileged material (including material protected by the solicitor-client or other applicable privileges), or constitute non-public information. Any use of this information by anyone other than the intended recipient is prohibited. If you have received this transmission in error, please immediately reply to the sender and delete this information from your system. Use, dissemination, distribution, or reproduction of this transmission by unintended recipients is not authorized and may be unlawful. ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
[Development] Request for new Playground Repo
Hi, I'd like to request the creation of a new playground repository. Name: BlackBerry Extras Description: A repository for creating BlackBerry specific APIs that are useful for implementing Qt functionality. Let me know if there are any questions. Thanks! Andrew Wooster Technical Lead Development Platform Office: (519) 597-9782 - This transmission (including any attachments) may contain confidential information, privileged material (including material protected by the solicitor-client or other applicable privileges), or constitute non-public information. Any use of this information by anyone other than the intended recipient is prohibited. If you have received this transmission in error, please immediately reply to the sender and delete this information from your system. Use, dissemination, distribution, or reproduction of this transmission by unintended recipients is not authorized and may be unlawful. ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
Re: [Development] Request for new Playground Repo
On Wed, Nov 20, 2013 at 07:36:00PM +, Andrew Wooster wrote: Hi, I'd like to request the creation of a new playground repository. Name: BlackBerry Extras Description: A repository for creating BlackBerry specific APIs that are useful for implementing Qt functionality. can you please elaborate on that? ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
Re: [Development] Request for new Playground Repo
Yes, that is the intent. Andrew Wooster Technical Lead Development Platform Office: (519) 597-9782 From: Knoll Lars [lars.kn...@digia.com] Sent: 20 November 2013 14:51 To: Andrew Wooster; development@qt-project.org Subject: Re: [Development] Request for new Playground Repo On 20/11/13 20:36, Andrew Wooster awoos...@blackberry.com wrote: Hi, I'd like to request the creation of a new playground repository. Name: BlackBerry Extras Description: A repository for creating BlackBerry specific APIs that are useful for implementing Qt functionality. Let me know if there are any questions. If the purpose is the same as the other QPlatformExtras modules, I¹m happy to add it. Cheers, Lars - This transmission (including any attachments) may contain confidential information, privileged material (including material protected by the solicitor-client or other applicable privileges), or constitute non-public information. Any use of this information by anyone other than the intended recipient is prohibited. If you have received this transmission in error, please immediately reply to the sender and delete this information from your system. Use, dissemination, distribution, or reproduction of this transmission by unintended recipients is not authorized and may be unlawful. ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
Re: [Development] Request for new Playground Repo
On Wed, Nov 20, 2013 at 07:53:56PM +, Andrew Wooster wrote: Currently there is at least one API that is specific to BlackBerry that provides a wrapper for PPS that would be used in plugins supplied for Qt Location, as well as in Qt Systems. that's the part that worries me slightly. what dependency graph between the modules do you have in mind? where are the plugins going to end up? Essentially I'm trying to get something similar to the qt*extras modules already present in Qt. Here's the reference for the one API that we'd immediately target for this repository: http://developer.blackberry.com/native/reference/cascades/bb__ppsobject.html Thanks Andrew Wooster Technical Lead Development Platform Office: (519) 597-9782 From: development-bounces+awooster=blackberry@qt-project.org [development-bounces+awooster=blackberry@qt-project.org] on behalf of Oswald Buddenhagen [oswald.buddenha...@digia.com] Sent: 20 November 2013 14:46 To: development@qt-project.org Subject: Re: [Development] Request for new Playground Repo On Wed, Nov 20, 2013 at 07:36:00PM +, Andrew Wooster wrote: Hi, I'd like to request the creation of a new playground repository. Name: BlackBerry Extras Description: A repository for creating BlackBerry specific APIs that are useful for implementing Qt functionality. can you please elaborate on that? ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development - This transmission (including any attachments) may contain confidential information, privileged material (including material protected by the solicitor-client or other applicable privileges), or constitute non-public information. Any use of this information by anyone other than the intended recipient is prohibited. If you have received this transmission in error, please immediately reply to the sender and delete this information from your system. Use, dissemination, distribution, or reproduction of this transmission by unintended recipients is not authorized and may be unlawful. ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
Re: [Development] Request for new Playground Repo
The QtLocation BlackBerry plugin already uses it, for one (but copies it locally). We're also doing some work in QtSystems that also would use it for the BlackBerry implementation (but in the short term, we'll copy locally again). I'll try and figure out if there's any other BlackBerry specific code in Qt that already copies it, but that's all I'm aware of right now. Andrew Wooster Technical Lead Development Platform Office: (519) 597-9782 From: development-bounces+awooster=blackberry@qt-project.org [development-bounces+awooster=blackberry@qt-project.org] on behalf of Oswald Buddenhagen [oswald.buddenha...@digia.com] Sent: 20 November 2013 15:05 To: development@qt-project.org Subject: Re: [Development] Request for new Playground Repo On Wed, Nov 20, 2013 at 07:53:56PM +, Andrew Wooster wrote: Currently there is at least one API that is specific to BlackBerry that provides a wrapper for PPS that would be used in plugins supplied for Qt Location, as well as in Qt Systems. that's the part that worries me slightly. what dependency graph between the modules do you have in mind? where are the plugins going to end up? Essentially I'm trying to get something similar to the qt*extras modules already present in Qt. Here's the reference for the one API that we'd immediately target for this repository: http://developer.blackberry.com/native/reference/cascades/bb__ppsobject.html Thanks Andrew Wooster Technical Lead Development Platform Office: (519) 597-9782 From: development-bounces+awooster=blackberry@qt-project.org [development-bounces+awooster=blackberry@qt-project.org] on behalf of Oswald Buddenhagen [oswald.buddenha...@digia.com] Sent: 20 November 2013 14:46 To: development@qt-project.org Subject: Re: [Development] Request for new Playground Repo On Wed, Nov 20, 2013 at 07:36:00PM +, Andrew Wooster wrote: Hi, I'd like to request the creation of a new playground repository. Name: BlackBerry Extras Description: A repository for creating BlackBerry specific APIs that are useful for implementing Qt functionality. can you please elaborate on that? ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development - This transmission (including any attachments) may contain confidential information, privileged material (including material protected by the solicitor-client or other applicable privileges), or constitute non-public information. Any use of this information by anyone other than the intended recipient is prohibited. If you have received this transmission in error, please immediately reply to the sender and delete this information from your system. Use, dissemination, distribution, or reproduction of this transmission by unintended recipients is not authorized and may be unlawful. ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development - This transmission (including any attachments) may contain confidential information, privileged material (including material protected by the solicitor-client or other applicable privileges), or constitute non-public information. Any use of this information by anyone other than the intended recipient is prohibited. If you have received this transmission in error, please immediately reply to the sender and delete this information from your system. Use, dissemination, distribution, or reproduction of this transmission by unintended recipients is not authorized and may be unlawful. ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
Re: [Development] Request for new Playground Repo
On 20/11/13 21:05, Oswald Buddenhagen oswald.buddenha...@digia.com wrote: On Wed, Nov 20, 2013 at 07:53:56PM +, Andrew Wooster wrote: Currently there is at least one API that is specific to BlackBerry that provides a wrapper for PPS that would be used in plugins supplied for Qt Location, as well as in Qt Systems. that's the part that worries me slightly. what dependency graph between the modules do you have in mind? where are the plugins going to end up? To some extent that¹s probably unavoidable if one of the main the IPC mechanisms is platform specific. On Linux we also have a dbus dependency on some of these backends. Cheers, Lars Essentially I'm trying to get something similar to the qt*extras modules already present in Qt. Here's the reference for the one API that we'd immediately target for this repository: http://developer.blackberry.com/native/reference/cascades/bb__ppsobject.h tml Thanks Andrew Wooster Technical Lead Development Platform Office: (519) 597-9782 From: development-bounces+awooster=blackberry@qt-project.org [development-bounces+awooster=blackberry@qt-project.org] on behalf of Oswald Buddenhagen [oswald.buddenha...@digia.com] Sent: 20 November 2013 14:46 To: development@qt-project.org Subject: Re: [Development] Request for new Playground Repo On Wed, Nov 20, 2013 at 07:36:00PM +, Andrew Wooster wrote: Hi, I'd like to request the creation of a new playground repository. Name: BlackBerry Extras Description: A repository for creating BlackBerry specific APIs that are useful for implementing Qt functionality. can you please elaborate on that? ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development - This transmission (including any attachments) may contain confidential information, privileged material (including material protected by the solicitor-client or other applicable privileges), or constitute non-public information. Any use of this information by anyone other than the intended recipient is prohibited. If you have received this transmission in error, please immediately reply to the sender and delete this information from your system. Use, dissemination, distribution, or reproduction of this transmission by unintended recipients is not authorized and may be unlawful. ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development ___ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
Re: [Development] Request for new Playground Repo
On Wed, Nov 20, 2013 at 07:51:34PM +, Knoll Lars wrote:
On 20/11/13 20:36, Andrew Wooster awoos...@blackberry.com wrote:
Hi, I'd like to request the creation of a new playground repository.
Name: BlackBerry Extras
Description: A repository for creating BlackBerry specific APIs that are
useful for implementing Qt functionality.
Let me know if there are any questions.
If the purpose is the same as the other QPlatformExtras modules, I¹m happy
to add it.
I am not.
The general approach is wrong, for several reasons:
1. Splitting the platform extras already on the module level means that
everybody who wants to use some of the extras even buried behind #ifdef's
somewhere deep in his code has to add platform specific conditional code like
!isEmpty(QT.x11extras.name) {
QT += x11extras
DEFINES += I_CAN_USE_X11EXTRAS
} else {
warning(x11extras module not found, )
}
to his buildsystem(s), for each of the platforms he want to fully
support. This is a maintanance burden not just for the buildsystem itself
but also extends to conditional packaging/installation.
2. The setup is inherently fragile as only part of the code is used, and part
not even checked on a specific developer's machine at a time, bearing the
risk of the classic compile fix or CI ping pong.
3. The approach does not scale as it does not offer a natural place for
features that are not available on all platforms, but on more then one.
Putting random sort-of-sharable code into qtbase is not a good alternative
either.
There is no perfect solution, but the further down the conditionals
are in the code the less impact they have on all three aspects, and
the more code can be shared between the backends.
Merging the platform into a single module with fat #ifdefs QT_OS_XYZ
in the headers would already alleviate the problem on the build system
level, and upwards (packaging...), while providing the same interface
to the actual code. That'd be a uniform improvemnt over the current setup.
Andre'
___
Development mailing list
Development@qt-project.org
http://lists.qt-project.org/mailman/listinfo/development
