I'm toying with an application that uses QJSEngine to perform queries and
build reports. Mostly, I was curious how well JavaScript + QObjects would
be up to the job. So far, it's been going great.
However, I ran into a small hurdle today. It appears that QJSEngine when
garbage collecting QObject's
Hi, guys. This may be a little rambling, so I apologize.
I recently re-wrote an older, stand-alone application that was using a fairly
archaic framework to use Qt5. In designing the UI, I implemented some
animation support (via QPropertyAnimation) on the widgets on the interface. I
found tha
Hi Alexander,
First of all, thanks for bringing this to our attention. The lack of
Trim() was a regression we let in 5.5.0, although the additional D3D
tests failures are caused by new items in the Windows 10 WACK. The fix
is now in the 5.5.1 branch of qtbase and will be part of the 5.5.1
rele
Solved. This is because I use graphics effect set on menu bar. On iOS
don't use any graphics effects on widgets, because drawing will be ugly,
especially of fonts...
On 24.09.2015 10:42, Igor Mironchik wrote:
> Hi,
>
> Why on iOS QMenuBar draws text so ugly? And look on the submenu...
> There f
Hi,
I found that if set resolution for view finder, and set capture mode of
camera to CaptureViewfinder then capturing of images is going in the
same resolution. In my case this is small one.
What I do. I set resolution of view finder to some small one. It's ok.
When user press capture button
Problem is still actual. I refused from QCameraViewfinder. The main
problem is that QCameraViewfinder eat resourses and on UI rotation
widget doesn't updates its layouts and so on.
In my implementation of view finder before drawing frame I invoke
QCoreApplication::processEvents(). Without it UI
Solved. The solution is simple: I didn't map QVideoFrame. That is why
frame was empty...
On 29.09.2015 14:21, Igor Mironchik wrote:
> Hi guys,
>
> I decided to implement my custom video surface and use it as view
> finder with QCamera.
>
> I wrote:
>
> ViewFinderSurface::ViewFinderSurface( const
On Tuesday 29 September 2015 05:55:01 Adam Light wrote:
> On Tue, Sep 29, 2015 at 1:20 AM, Julius Bullinger <
>
> julius.bullin...@asctec.de> wrote:
> > On Tuesday, 29 September 2015 08:32 Thiago Macieira wrote:
> > > And QT_DEVICE_PIXEL_RATIO is deprecated -- it will print a qWarning in
> >
> >
Thanks guys for your replies! It helped a lot! :)
> On 29 Sep 2015, at 14:09, Mark Tucker wrote:
>
> Hello Nuno,
>
> In finishUIDDialogCreation() (after your check for it being null) you can
> connect the signals you're emitting from your dialog to another function of
> your choice, for inst
On Tuesday 29 September 2015 17:49:29 Philippe wrote:
> Well, an application should be able to enable or disable HDPI support at
> Qt startup, programatically.
Agreed. But that means an API, not an environment variable.
Qt Creator did the same thing: it set the variable via qputenv in its main
f
Well, an application should be able to enable or disable HDPI support at
Qt startup, programatically.
Philippe
On Tue, 29 Sep 2015 08:42:44 -0700
Thiago Macieira wrote:
> On Tuesday 29 September 2015 05:55:01 Adam Light wrote:
> > On Tue, Sep 29, 2015 at 1:20 AM, Julius Bullinger <
> >
> > jul
On Tuesday 29 September 2015 15:18:09 René J.V. Bertin wrote:
> Hi,
>
> Looking at the output from the qtdiag app from a newly built Qt 5.5.0
> install (installed into /opt/local), I noticed that its system, general and
> fixed width fonts were fonts I apparently chose one way or another, at some
Well, there’s no nice solution since QOffscreenSurface is backed by a window,
not a pbuffer on Windows. (arguably this should be changed in some future
release, for ANGLE at least, but that won’t help you now)
You can make a QOpenGLContext current with a QOffscreenSurface, then call
eglMakeCurr
I'm setting up a EGL PBuffer for shared rendering between Qt Quick and
Direct3D, and I'm getting closer to a usable result. However, I am having
trouble getting a multisample frame config for my PBuffer.
I've tried both getting the EGL Config through the platform native
interface and using eglChoo
It works if I add a dummy OffscreenSurface and make my context current on
this before making the PBuffer current. Not sure if this is the best way of
doing it though?
- Thomas
On Tue, Sep 29, 2015 at 11:37 AM, Thomas Sevaldrud
wrote:
> Hi,
>
> I'm still working on the EGL PBuffer/DirectX integr
Dear Liang Jian,
Thank you for your input.
1. Qt-generated Debug projects:
It's interesting that for Qt-generated Debug projects,
it runs properly from QtCreator application run, but not in Debugger.
Black screen if running such projects from Xcode.
2. Qt-generated Release projects:
Launch sc
Hi,
Looking at the output from the qtdiag app from a newly built Qt 5.5.0 install
(installed into /opt/local), I noticed that its system, general and fixed width
fonts were fonts I apparently chose one way or another, at some point in the
past.
Where is this information obtained from, I can't s
Hi Robert,
In our project, we use nearly the same method to create launch screen
except that we use a .xib file to specify launch screen layout. It works
well in both debug and release build.
If you iphone runs iOS 9, please note that there is a bug in iOS 9
which will prevent launch sc
Hello Nuno,
In finishUIDDialogCreation() (after your check for it being null) you can
connect the signals you're emitting from your dialog to another function of
your choice, for instance if you had a function named "handleOKClicked" then
you can do this:
dialog.okClicked.connect(handleOKClick
On Tue, Sep 29, 2015 at 1:20 AM, Julius Bullinger <
julius.bullin...@asctec.de> wrote:
> On Tuesday, 29 September 2015 08:32 Thiago Macieira wrote:
> > And QT_DEVICE_PIXEL_RATIO is deprecated -- it will print a qWarning in
> Qt 5.6 now. Please don't set it.
>
> I know about the upcoming changes in
Hi guys,
I decided to implement my custom video surface and use it as view finder
with QCamera.
I wrote:
ViewFinderSurface::ViewFinderSurface( const QCamera & camera, QObject *
parent )
:QAbstractVideoSurface( parent )
,m_camera( camera )
{
}
bool
ViewFinderSurface::present(
Hi,
I’m trying to implement a custom dialog box on qml using dynamic object
creation methods. I’m using the javascript approach to create the component and
then the object. The object appears on the scene and it has two buttons. The
question is. What are the strategies available to receive the
I'd a problem with orientation using QML VideoOutput, not exactly the same,
but the autoOrientation had some bugs, i.e: Doesn't recognize the Qt
.InvertedPortraitOrientation orientation.
I tried to fix it, instead assigning the angle in the events:
onWidthChanged
onHeightChanged
Maybe it can help
Hi,
I'm still working on the EGL PBuffer/DirectX integration through Qt that I
posted about last week :-)
Thanks to good help from this list I now have the PBuffer and DirectX
texture set up with the share handle. I also have a QOpenGLContext which I
have used to set up the EGL PBuffer. I don't h
Hi guys,
Does anybody have experience with displaying QCameraViewfinder on iOS?
I successfully display it, I see video from camera... But I have one
problem: when I rotate device my window trying to rotate and stopping in
the middle of this action. When I click somewhere on this screen then
la
Hi,
In classical scenegraph approach, the path to a node gives the
relationships between the nodes. For example, the following path root
-> transform -> mesh means that the mesh node will be applied the
transform given by the transform node. The scenegraph's root is the
parent of the transform nod
How do I show a window without making it 'active' or giving it 'focus'.
If I understand correctly:
- a widget may be 'active' in which case it is drawn differently, for
example an 'active' QTextEdit has a blinking cursor.
- a widget may have 'focus' in which case it is the recipient of
keyboard
On Tuesday, 29 September 2015 08:32 Thiago Macieira wrote:
> And QT_DEVICE_PIXEL_RATIO is deprecated -- it will print a qWarning in Qt 5.6
> now. Please don't set it.
I know about the upcoming changes in 5.6, but AFAIK this the only option in 5.5
right now.
But please enlighten me if there's a b
On 29/09/15 08:51, Hamish Moffatt wrote:
> On 29/09/15 16:27, Julius Bullinger wrote:
>> They are only used where I explicitly requested the @2x icon. Maybe I
>> misunderstand the whole thing, but I was under the impression that the
>> i...@2x.png file should be used transparently if icon.png is
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