Hi Nuno,
   You are missing a line, something like:

   [defaults setValue:object forKey:key]

in setSharedKey.

> 
> From: Nuno Santos <nunosan...@imaginando.pt>
> Subject: [Interest] Qt iOS / App Groups / NSUserDefaults initWithSuiteName / 
> Not persisting
> Date: November 14, 2018 at 7:24:06 AM AST
> To: "interest@qt-project.org Interest" <interest@qt-project.org>
> 
> 
> Hi,
> 
> I’m trying to persist data in a App Group on Qt iOS app to share data between 
> a standalone app and app extension.
> 
> I have been reading on how to do it and apparently is dead simple -> 
> https://developer.apple.com/library/archive/documentation/General/Conceptual/ExtensibilityPG/ExtensionScenarios.html#//apple_ref/doc/uid/TP40014214-CH21-SW6
>  
> <https://developer.apple.com/library/archive/documentation/General/Conceptual/ExtensibilityPG/ExtensionScenarios.html#//apple_ref/doc/uid/TP40014214-CH21-SW6>
> 
> The problem is that it is not persisting data…. 
> 
> I’m starting to question the model I’m following in terms of code. I have my 
> Settings manager in C++. What I have done was to create a SettingsCocoa.mm 
> file that does what is below.
> 
> In a app session, the value is persisted but as soon as I start the app 
> again, the value is null. 
> 
> As anyone experienced similar issues before? Any ideas would be highly 
> appreciated.
> 
> Thanks in advance.
> 
> Best regards,
> 
> Nuno
> 
> 
> #include "Settings.h"
> 
> #import <Foundation/Foundation.h>
> #include <QDebug>
> 
> static NSUserDefaults *defaults = nil;
> 
> QVariant Settings::sharedKey(QString key, const QVariant &defaultValue) const
> {
>     if (defaults==nil)
>         defaults = [[NSUserDefaults alloc] 
> initWithSuiteName:@"group.com.acme.app"];
> 
>     NSObject *value = [defaults valueForKey:key.toNSString()];
>     NSLog(@"get object: %@", value);
> }
> 
> void Settings::setSharedKey(QString key, QVariant value)
> {
>     if (defaults==nil)
>         defaults = [[NSUserDefaults alloc] 
> initWithSuiteName:@"group.com.acme.app"];
> 
>     NSObject *object = [ISettingsManagerCocoaHelper variantToNSObject:value];
>     NSLog(@"set object: %@", object);
> 
>     sharedKey(key, value);
> 
>     [defaults synchronize];
> }
> 
> 
> 
> From: Giuseppe D'Angelo <giuseppe.dang...@kdab.com>
> Subject: Re: [Interest] efficient natural sorting
> Date: November 14, 2018 at 10:57:03 AM AST
> To: interest@qt-project.org
> 
> 
> Hi,
> 
> Il 14/11/18 03:28, Frank Rueter | OHUfx ha scritto:
>> This works nicely but I’m wondering if it’s reliable and efficient to 
>> implement it like this in the QSortFilterProxyModel.lessThan() method?!
>> |def lessThan(self, source_left, source_right): natural_keys(source_left) < 
>> natural_keys(source_right) |
>> Any thoughts on this?
> 
> You can use QCollator to implement natural sorting (by enabling the numeric 
> mode). Or doesn't it work for your use case?
> 
> My 2 c,
> -- 
> Giuseppe D'Angelo | giuseppe.dang...@kdab.com | Senior Software Engineer
> KDAB (France) S.A.S., a KDAB Group company
> Tel. France +33 (0)4 90 84 08 53, http://www.kdab.com
> KDAB - The Qt, C++ and OpenGL Experts
> 
> 
> 
> 
> From: Shawn Rutledge <shawn.rutle...@qt.io>
> Subject: Re: [Interest] efficient natural sorting
> Date: November 14, 2018 at 11:14:21 AM AST
> To: "interest@qt-project.org" <interest@qt-project.org>
> 
> 
> 
>> On 14 Nov 2018, at 03:28, Frank Rueter | OHUfx <fr...@ohufx.com> wrote:
>> 
>> Hi,
>> 
>> I need to use the QSortFilterProxyModel to sort strings with numbers in 
>> them, i.e. perform natural sorting.
> 
> Another idea is to add a different role to your model, have data() return the 
> original number (int or qreal or whatever) in the variant for that role, and 
> call setSortRole() to tell QSFPM which role to use.
> 
> 
> 
> 
> 
> From: Roman Wüger <roman.wue...@gmx.at>
> Subject: Re: [Interest] Connection problems with QNerworkAccessManager
> Date: November 14, 2018 at 12:06:37 PM AST
> To: ekke <e...@ekkes-corner.org>
> Cc: interest@qt-project.org
> 
> 
> No one?
> 
>> Am 09.10.2018 um 14:54 schrieb Roman Wüger <roman.wue...@gmx.at>:
>> 
>> I tried to copy the script outside of the htaccess restricted are, and it 
>> seems to work. Maybe it has todo with the combination of ssl and htaccess?
>> 
>> Regards 
>> 
>>> Am 09.10.2018 um 14:50 schrieb Roman Wüger <roman.wue...@gmx.at>:
>>> 
>>> Hello,
>>> 
>>> i tried it with 5.11.x versions.
>>> The log from the server shows that the request (which is a normal GET 
>>> request), I also tried POST request, is sent a multiply of 100 per second 
>>> so ~= 200 requests per second until the server give up.
>>> 
>>> I use https and a htaccess restricted area, which calls my 
>>> authenticationRequired() slot.
>>> 
>>> Regards
>>> 
>>>> Am 08.10.2018 um 13:30 schrieb ekke <e...@ekkes-corner.org>:
>>>> 
>>>> have you tried 5.11.2, 5.12 Beta or 5.10.1 ?
>>>> 
>>>>> Am 08.10.18 um 12:35 schrieb Roman Wüger:
>>>>> Hi,
>>>>> 
>>>>> i use Qt 5.11.1 at the moment and have some connection problems with 
>>>>> QNetworkAccessManager.
>>>>> There are no error, sslerror or finished signals emitted, but I see the 
>>>>> traffic in Wireshark.
>>>>> The problem occurs on Windows, Mac and iOS.
>>>>> 
>>>>> When I enter the url in the browser, then it is working without a problem.
>>>>> 
>>>>> Any hints?
>>>>> 
>>>>> Thanks in advance
>>>>> _______________________________________________
>>>>> Interest mailing list
>>>>> Interest@qt-project.org
>>>>> http://lists.qt-project.org/mailman/listinfo/interest
>>>>> 
>>>> 
>>>> _______________________________________________
>>>> Interest mailing list
>>>> Interest@qt-project.org
>>>> http://lists.qt-project.org/mailman/listinfo/interest
>>> 
>>> _______________________________________________
>>> Interest mailing list
>>> Interest@qt-project.org
>>> http://lists.qt-project.org/mailman/listinfo/interest
>> 
>> _______________________________________________
>> Interest mailing list
>> Interest@qt-project.org
>> http://lists.qt-project.org/mailman/listinfo/interest
> 
> 
> 
> 
> 
> From: Roman Wüger <roman.wue...@gmx.at>
> Subject: [Interest] Problem with font size on Android and High DPI
> Date: November 14, 2018 at 12:11:13 PM AST
> To: Qt Project MailingList <interest@qt-project.org>
> 
> 
> Hello everyone,
> 
> I enabled the High DPI option on an android tablet. However, the fonts are 
> not resized at all and looks a way too small. I tried the other environment 
> variables too, but the result is not as expected. 
> 
> Does anyone have a hint or how is that done normally?
> 
> Regards
> Roman
> 
> 
> 
> 
> From: ekke <e...@ekkes-corner.org>
> Subject: Re: [Interest] Problem with font size on Android and High DPI
> Date: November 14, 2018 at 12:15:09 PM AST
> To: interest@qt-project.org
> 
> 
> Am 14.11.18 um 17:11 schrieb Roman Wüger:
>> Hello everyone,
>> 
>> I enabled the High DPI option on an android tablet. However, the fonts are 
>> not resized at all and looks a way too small. I tried the other environment 
>> variables too, but the result is not as expected. 
>> 
>> Does anyone have a hint or how is that done normally?
>> 
>> Regards
>> Roman
>> _______________________________________________
>> Interest mailing list
>> Interest@qt-project.org
>> http://lists.qt-project.org/mailman/listinfo/interest
>> 
> what kind of application ?
> 
> QtQuickControls2 ?
> 
> ekke
> 
> 
> 
> 
> 
> From: Roman Wüger <roman.wue...@gmx.at>
> Subject: Re: [Interest] Problem with font size on Android and High DPI
> Date: November 14, 2018 at 12:29:36 PM AST
> To: ekke <e...@ekkes-corner.org>
> Cc: interest@qt-project.org
> 
> 
> No, it is a QWidget application with Qt 5.12. I can’t switch to QtQuick 
> because customer wants existing application to be ported to android tablet.
> 
> Regards
> Roman
> 
>> Am 14.11.2018 um 17:15 schrieb ekke <e...@ekkes-corner.org>:
>> 
>>> Am 14.11.18 um 17:11 schrieb Roman Wüger:
>>> Hello everyone,
>>> 
>>> I enabled the High DPI option on an android tablet. However, the fonts are 
>>> not resized at all and looks a way too small. I tried the other environment 
>>> variables too, but the result is not as expected. 
>>> 
>>> Does anyone have a hint or how is that done normally?
>>> 
>>> Regards
>>> Roman
>>> _______________________________________________
>>> Interest mailing list
>>> Interest@qt-project.org
>>> http://lists.qt-project.org/mailman/listinfo/interest
>>> 
>> what kind of application ?
>> 
>> QtQuickControls2 ?
>> 
>> ekke
>> 
>> _______________________________________________
>> Interest mailing list
>> Interest@qt-project.org
>> http://lists.qt-project.org/mailman/listinfo/interest
> 
> 
> 
> 
> 
> From: Thiago Macieira <thiago.macie...@intel.com>
> Subject: Re: [Interest] QDir::entry(Info)List on macos
> Date: November 14, 2018 at 12:34:02 PM AST
> To: <interest@qt-project.org>
> 
> 
> On Wednesday, 14 November 2018 01:34:17 PST Manner Róbert wrote:
>> int main() {
>>  qDebug() << QDir(".").entryList();
> 
> QCoreApplication missing. Try again with it.
> 
> -- 
> Thiago Macieira - thiago.macieira (AT) intel.com
>  Software Architect - Intel Open Source Technology Center
> 
> 
> 
> 
> 
> 
> 
> From: Jérôme Godbout <godbo...@amotus.ca>
> Subject: Re: [Interest] Problem with font size on Android and High DPI
> Date: November 14, 2018 at 1:17:27 PM AST
> To: Roman Wüger <roman.wue...@gmx.at>, ekke <e...@ekkes-corner.org>
> Cc: "interest@qt-project.org" <interest@qt-project.org>
> 
> 
> Take care the pixel density is way different on a mobile device form a normal 
> desktop window. You might need to adjust your sizing for many thing. I do the 
> following, I develop on a particular device with REFERENCE SIZE:
> 
> // Collect screen dimension
>        const QScreen* const screen = QGuiApplication::primaryScreen();
>        QRect rect = screen->geometry();
>        const qreal height = qMax(rect.width(), rect.height());
>        const qreal width = qMin(rect.width(), rect.height());
>        const qreal dpi = screen->logicalDotsPerInch();
> 
>        // Compute reference ratio
>        m_horizontal_scale = width / REFERENCE_WIDTH;
>        m_vertical_scale = height / REFERENCE_HEIGHT;
>        m_dpi_scale = dpi / REFERENCE_DPI;
> 
>        // Compute other element scale factor
>        m_font_scale = qMin(m_horizontal_scale / m_dpi_scale, m_vertical_scale 
> / m_dpi_scale);
> 
> This allow you to have a display that look like each other compare to screen 
> size. It's maybe not what yo are looking for but might give you some idea to 
> achieve what you are looking for.
> 
> -----Original Message-----
> From: Interest <interest-bounces+godboutj=amotus...@qt-project.org> On Behalf 
> Of Roman Wüger
> Sent: November 14, 2018 11:30 AM
> To: ekke <e...@ekkes-corner.org>
> Cc: interest@qt-project.org
> Subject: Re: [Interest] Problem with font size on Android and High DPI
> 
> No, it is a QWidget application with Qt 5.12. I can’t switch to QtQuick 
> because customer wants existing application to be ported to android tablet.
> 
> Regards
> Roman
> 
>> Am 14.11.2018 um 17:15 schrieb ekke <e...@ekkes-corner.org>:
>> 
>>> Am 14.11.18 um 17:11 schrieb Roman Wüger:
>>> Hello everyone,
>>> 
>>> I enabled the High DPI option on an android tablet. However, the fonts are 
>>> not resized at all and looks a way too small. I tried the other environment 
>>> variables too, but the result is not as expected. 
>>> 
>>> Does anyone have a hint or how is that done normally?
>>> 
>>> Regards
>>> Roman
>>> _______________________________________________
>>> Interest mailing list
>>> Interest@qt-project.org
>>> http://lists.qt-project.org/mailman/listinfo/interest
>>> 
>> what kind of application ?
>> 
>> QtQuickControls2 ?
>> 
>> ekke
>> 
>> _______________________________________________
>> Interest mailing list
>> Interest@qt-project.org
>> http://lists.qt-project.org/mailman/listinfo/interest
> 
> _______________________________________________
> Interest mailing list
> Interest@qt-project.org
> http://lists.qt-project.org/mailman/listinfo/interest
> 
> 
> 
> From: Roman Wüger <roman.wue...@gmx.at>
> Subject: Re: [Interest] Problem with font size on Android and High DPI
> Date: November 14, 2018 at 2:32:06 PM AST
> To: Jérôme Godbout <godbo...@amotus.ca>
> Cc: ekke <e...@ekkes-corner.org>, "interest@qt-project.org" 
> <interest@qt-project.org>
> 
> 
> And then I need to go over all widgets and multiply the font scale with 
> current font size?
> 
> Regards 
> 
>> Am 14.11.2018 um 18:17 schrieb Jérôme Godbout <godbo...@amotus.ca>:
>> 
>> Take care the pixel density is way different on a mobile device form a 
>> normal desktop window. You might need to adjust your sizing for many thing. 
>> I do the following, I develop on a particular device with REFERENCE SIZE:
>> 
>> // Collect screen dimension
>>       const QScreen* const screen = QGuiApplication::primaryScreen();
>>       QRect rect = screen->geometry();
>>       const qreal height = qMax(rect.width(), rect.height());
>>       const qreal width = qMin(rect.width(), rect.height());
>>       const qreal dpi = screen->logicalDotsPerInch();
>> 
>>       // Compute reference ratio
>>       m_horizontal_scale = width / REFERENCE_WIDTH;
>>       m_vertical_scale = height / REFERENCE_HEIGHT;
>>       m_dpi_scale = dpi / REFERENCE_DPI;
>> 
>>       // Compute other element scale factor
>>       m_font_scale = qMin(m_horizontal_scale / m_dpi_scale, m_vertical_scale 
>> / m_dpi_scale);
>> 
>> This allow you to have a display that look like each other compare to screen 
>> size. It's maybe not what yo are looking for but might give you some idea to 
>> achieve what you are looking for.
>> 
>> -----Original Message-----
>> From: Interest <interest-bounces+godboutj=amotus...@qt-project.org> On 
>> Behalf Of Roman Wüger
>> Sent: November 14, 2018 11:30 AM
>> To: ekke <e...@ekkes-corner.org>
>> Cc: interest@qt-project.org
>> Subject: Re: [Interest] Problem with font size on Android and High DPI
>> 
>> No, it is a QWidget application with Qt 5.12. I can’t switch to QtQuick 
>> because customer wants existing application to be ported to android tablet.
>> 
>> Regards
>> Roman
>> 
>>>> Am 14.11.2018 um 17:15 schrieb ekke <e...@ekkes-corner.org>:
>>>> 
>>>> Am 14.11.18 um 17:11 schrieb Roman Wüger:
>>>> Hello everyone,
>>>> 
>>>> I enabled the High DPI option on an android tablet. However, the fonts are 
>>>> not resized at all and looks a way too small. I tried the other 
>>>> environment variables too, but the result is not as expected. 
>>>> 
>>>> Does anyone have a hint or how is that done normally?
>>>> 
>>>> Regards
>>>> Roman
>>>> _______________________________________________
>>>> Interest mailing list
>>>> Interest@qt-project.org
>>>> http://lists.qt-project.org/mailman/listinfo/interest
>>>> 
>>> what kind of application ?
>>> 
>>> QtQuickControls2 ?
>>> 
>>> ekke
>>> 
>>> _______________________________________________
>>> Interest mailing list
>>> Interest@qt-project.org
>>> http://lists.qt-project.org/mailman/listinfo/interest
>> 
>> _______________________________________________
>> Interest mailing list
>> Interest@qt-project.org
>> http://lists.qt-project.org/mailman/listinfo/interest
> 
> 
> 
> 
> 
> From: Manner Róbert <rma...@gmail.com>
> Subject: Re: [Interest] QDir::entry(Info)List on macos
> Date: November 15, 2018 at 3:54:38 AM AST
> To: interest@qt-project.org
> 
> 
> On 11/14/18 5:34 PM, Thiago Macieira wrote:
>> On Wednesday, 14 November 2018 01:34:17 PST Manner Róbert wrote:
>>> int main() {
>>>  qDebug() << QDir(".").entryList();
>> QCoreApplication missing. Try again with it.
>> 
> Tried, without success, still does not display these files. Even tried
> with QDirIterator, that is also working the same (skipping these files).
> 
> With further checking I noticed that the files are only not displaying
> if I do not create them with Qt. Eg I created with "touch filenamé". If
> I create the same file with QFile, that seems to be found by these dir
> lists. I know it sounds insane.
> 
> 
> Locale is utf8:
> 
>> locale
> LANG="en_US.UTF-8"
> LC_COLLATE="en_US.UTF-8"
> LC_CTYPE="en_US.UTF-8"
> LC_MESSAGES="en_US.UTF-8"
> LC_MONETARY="en_US.UTF-8"
> LC_NUMERIC="en_US.UTF-8"
> LC_TIME="en_US.UTF-8"
> LC_ALL="en_US.UTF-8"
> 
> The modified source code:
> 
>> cat main.cpp
> #include <QDirIterator>
> #include <QDebug>
> #include <QFileInfoList>
> #include <QCoreApplication>
> #include <QFile>
> 
> int main(int argc, char** argv) {
>   QFile file("éáőú");  // This file is visible in the list! But not any
> other I create with touch for example.
>   file.open(QFile::WriteOnly);
>   file.close();
> 
>   QCoreApplication app(argc, argv);
>   QDirIterator iterator(".", QDir::Files, QDirIterator::Subdirectories);
>   while (iterator.hasNext())
>     {
>       qDebug() << "QDiriterator" << iterator.next();
>     }
> 
>   qDebug() << QDir(".").entryList(QDir::System | QDir::AllEntries |
> QDir::Hidden);
> 
>   qDebug() << QDir(".").entryInfoList(QDir::System | QDir::AllEntries |
> QDir::Hidden);
> }
> 
> Thanks in advance for any idea.
> 
> Robert
> 
> 
> 
> 
> 
> From: "Olivier B." <perso.olivier.barthel...@gmail.com>
> Subject: Re: [Interest] QDir::entry(Info)List on macos
> Date: November 15, 2018 at 4:49:08 AM AST
> To: rma...@gmail.com
> Cc: interest@qt-project.org
> 
> 
> What is the encoding of your source file?
> QString constructors interprets char* as if they are UTF-8. If the
> source file is encoded in your local encoding, the QString created for
> QFile constructor will have a wrong unicode storage of your wanted
> filename, then will try to convert what it thinks is UTF into your
> local encoding to pass the filename to the system calls. Maybe the mac
> explorer can work around this and adjust the displayed name, but the
> Filesystem interface of Qt can't because that puts forbidden
> characters in the real name?
> Le jeu. 15 nov. 2018 à 08:55, Manner Róbert <rma...@gmail.com> a écrit :
>> 
>> On 11/14/18 5:34 PM, Thiago Macieira wrote:
>>> On Wednesday, 14 November 2018 01:34:17 PST Manner Róbert wrote:
>>>> int main() {
>>>>  qDebug() << QDir(".").entryList();
>>> QCoreApplication missing. Try again with it.
>>> 
>> Tried, without success, still does not display these files. Even tried
>> with QDirIterator, that is also working the same (skipping these files).
>> 
>> With further checking I noticed that the files are only not displaying
>> if I do not create them with Qt. Eg I created with "touch filenamé". If
>> I create the same file with QFile, that seems to be found by these dir
>> lists. I know it sounds insane.
>> 
>> 
>> Locale is utf8:
>> 
>>> locale
>> LANG="en_US.UTF-8"
>> LC_COLLATE="en_US.UTF-8"
>> LC_CTYPE="en_US.UTF-8"
>> LC_MESSAGES="en_US.UTF-8"
>> LC_MONETARY="en_US.UTF-8"
>> LC_NUMERIC="en_US.UTF-8"
>> LC_TIME="en_US.UTF-8"
>> LC_ALL="en_US.UTF-8"
>> 
>> The modified source code:
>> 
>>> cat main.cpp
>> #include <QDirIterator>
>> #include <QDebug>
>> #include <QFileInfoList>
>> #include <QCoreApplication>
>> #include <QFile>
>> 
>> int main(int argc, char** argv) {
>>  QFile file("éáőú");  // This file is visible in the list! But not any
>> other I create with touch for example.
>>  file.open(QFile::WriteOnly);
>>  file.close();
>> 
>>  QCoreApplication app(argc, argv);
>>  QDirIterator iterator(".", QDir::Files, QDirIterator::Subdirectories);
>>  while (iterator.hasNext())
>>    {
>>      qDebug() << "QDiriterator" << iterator.next();
>>    }
>> 
>>  qDebug() << QDir(".").entryList(QDir::System | QDir::AllEntries |
>> QDir::Hidden);
>> 
>>  qDebug() << QDir(".").entryInfoList(QDir::System | QDir::AllEntries |
>> QDir::Hidden);
>> }
>> 
>> Thanks in advance for any idea.
>> 
>> Robert
>> 
>> _______________________________________________
>> Interest mailing list
>> Interest@qt-project.org
>> http://lists.qt-project.org/mailman/listinfo/interest
> 
> 
> 
> 
> From: Manner Róbert <rma...@gmail.com>
> Subject: Re: [Interest] QDir::entry(Info)List on macos
> Date: November 15, 2018 at 9:54:22 AM AST
> To: "Olivier B." <perso.olivier.barthel...@gmail.com>
> Cc: interest@qt-project.org
> 
> 
> Hi,
> 
> ((
> My local encoding is utf-8, so the source file seems to be the same as well:
>> file main.cpp
> main.cpp: c program text, UTF-8 Unicode text
> ))
> 
> I think I have found the bug which causes this:
> https://bugreports.qt.io/browse/QTBUG-70732
> 
> I am currently working on a workaround, I am now able to list the files
> now using <dirent.h>:
> 
>         QStringList results;
>         DIR *dir;
>         struct dirent *ent;
>         QByteArray bpath = path.toUtf8();
>         if ((dir = opendir (bpath.constData())) != NULL) {
>           /* print all the files and directories within directory */
>           while ((ent = readdir (dir)) != NULL) {
>             results << ent->d_name;
>           }
>           closedir (dir);
>         } else {
>           /* could not open directory */
>           perror ("");
>         }
>         return results;
> 
> This gives back the files successfully, the downside is that they are in
> UTF-8 normalization format D (UTF-8-mac) which represents accented
> characters like O" format, so the original character (O) + the accent
> ("). Similarly as "ls -1" does.
> 
> And having a QString like that does not match "normal" (==
> "normalization format C") UTF-8 strings. Eg.:
> 
>   QString ch1("\u00D6");   // this is normal representation of "Ö"
>   QString ch2("O\u0308");  // this specifies O with an accent
>   qDebug() << ch1 << ch2 << (ch1 == ch2 ? "matches!" : "does not match");
> 
> This outputs: "Ö" "Ö" "does not match" not only on mac, but even on linux.
> 
> So I also needed to convert "utf8 to utf8" :) for my complete
> workaround. Unfortunately I did not find a way to do so with QTextCodec.
> (Is there?) So I am trying now iconv... this seems to do the trick, but
> quite ugly and inefficient.
> 
> QByteArray
> utf8_unmac(const QByteArray &utf8_mac)
> {
>   iconv_t conv = iconv_open("UTF-8-mac", "UTF-8");
>   if (conv == (iconv_t)-1)
>     {
>       RAISE(TestRunnerException(QString("Iconv open failed: ") +
> sys_errlist[errno]));
>     }
> 
>   char *inp = const_cast<char *>(utf8_mac.constData());  // iconv is
> moving these thats why the duplication
>   size_t inp_len = utf8_mac.size();
> 
>   size_t out_len = inp_len * 2;
> 
>   QByteArray utf8;
>   utf8.resize(out_len);
> 
>   char *out = utf8.data();
> 
>   if (iconv(conv, &inp, &inp_len, &out, &out_len) == (size_t)-1)
>     {
>       RAISE(TestRunnerException(QString("Iconv convert failed: ") +
> sys_errlist[errno]));
>     }
> 
>   utf8.chop(out_len);
>   iconv_close(conv);
>   return utf8;
> }
> 
> Hope it is useful for someone. To be honest, I always imagined that if
> everyone would use UTF-8 life would be much better, now I'm unsure ;)
> 
> Br,
> 
> Robert
> 
> 
> On 11/15/18 9:49 AM, Olivier B. wrote:
>> What is the encoding of your source file?
>> QString constructors interprets char* as if they are UTF-8. If the
>> source file is encoded in your local encoding, the QString created for
>> QFile constructor will have a wrong unicode storage of your wanted
>> filename, then will try to convert what it thinks is UTF into your
>> local encoding to pass the filename to the system calls. Maybe the mac
>> explorer can work around this and adjust the displayed name, but the
>> Filesystem interface of Qt can't because that puts forbidden
>> characters in the real name?
>> Le jeu. 15 nov. 2018 à 08:55, Manner Róbert <rma...@gmail.com> a écrit :
>>> On 11/14/18 5:34 PM, Thiago Macieira wrote:
>>>> On Wednesday, 14 November 2018 01:34:17 PST Manner Róbert wrote:
>>>>> int main() {
>>>>>  qDebug() << QDir(".").entryList();
>>>> QCoreApplication missing. Try again with it.
>>>> 
>>> Tried, without success, still does not display these files. Even tried
>>> with QDirIterator, that is also working the same (skipping these files).
>>> 
>>> With further checking I noticed that the files are only not displaying
>>> if I do not create them with Qt. Eg I created with "touch filenamé". If
>>> I create the same file with QFile, that seems to be found by these dir
>>> lists. I know it sounds insane.
>>> 
>>> 
>>> Locale is utf8:
>>> 
>>>> locale
>>> LANG="en_US.UTF-8"
>>> LC_COLLATE="en_US.UTF-8"
>>> LC_CTYPE="en_US.UTF-8"
>>> LC_MESSAGES="en_US.UTF-8"
>>> LC_MONETARY="en_US.UTF-8"
>>> LC_NUMERIC="en_US.UTF-8"
>>> LC_TIME="en_US.UTF-8"
>>> LC_ALL="en_US.UTF-8"
>>> 
>>> The modified source code:
>>> 
>>>> cat main.cpp
>>> #include <QDirIterator>
>>> #include <QDebug>
>>> #include <QFileInfoList>
>>> #include <QCoreApplication>
>>> #include <QFile>
>>> 
>>> int main(int argc, char** argv) {
>>>  QFile file("éáőú");  // This file is visible in the list! But not any
>>> other I create with touch for example.
>>>  file.open(QFile::WriteOnly);
>>>  file.close();
>>> 
>>>  QCoreApplication app(argc, argv);
>>>  QDirIterator iterator(".", QDir::Files, QDirIterator::Subdirectories);
>>>  while (iterator.hasNext())
>>>    {
>>>      qDebug() << "QDiriterator" << iterator.next();
>>>    }
>>> 
>>>  qDebug() << QDir(".").entryList(QDir::System | QDir::AllEntries |
>>> QDir::Hidden);
>>> 
>>>  qDebug() << QDir(".").entryInfoList(QDir::System | QDir::AllEntries |
>>> QDir::Hidden);
>>> }
>>> 
>>> Thanks in advance for any idea.
>>> 
>>> Robert
>>> 
>>> _______________________________________________
>>> Interest mailing list
>>> Interest@qt-project.org
>>> http://lists.qt-project.org/mailman/listinfo/interest
> 
> 
> 
> 
> 
> 
> From: Jérôme Godbout <godbo...@amotus.ca>
> Subject: Re: [Interest] Problem with font size on Android and High DPI
> Date: November 15, 2018 at 10:42:20 AM AST
> To: Roman Wüger <roman.wue...@gmx.at>
> Cc: ekke <e...@ekkes-corner.org>, "interest@qt-project.org" 
> <interest@qt-project.org>
> 
> 
> That I don't known, I'm 100% Qml and I just apply this to my Control style at 
> one place. Maybe there is a way to do this into the cascading widget style...
> 
> -----Original Message-----
> From: Roman Wüger <roman.wue...@gmx.at> 
> Sent: November 14, 2018 1:32 PM
> To: Jérôme Godbout <godbo...@amotus.ca>
> Cc: ekke <e...@ekkes-corner.org>; interest@qt-project.org
> Subject: Re: [Interest] Problem with font size on Android and High DPI
> 
> And then I need to go over all widgets and multiply the font scale with 
> current font size?
> 
> Regards 
> 
>> Am 14.11.2018 um 18:17 schrieb Jérôme Godbout <godbo...@amotus.ca>:
>> 
>> Take care the pixel density is way different on a mobile device form a 
>> normal desktop window. You might need to adjust your sizing for many thing. 
>> I do the following, I develop on a particular device with REFERENCE SIZE:
>> 
>> // Collect screen dimension
>>       const QScreen* const screen = QGuiApplication::primaryScreen();
>>       QRect rect = screen->geometry();
>>       const qreal height = qMax(rect.width(), rect.height());
>>       const qreal width = qMin(rect.width(), rect.height());
>>       const qreal dpi = screen->logicalDotsPerInch();
>> 
>>       // Compute reference ratio
>>       m_horizontal_scale = width / REFERENCE_WIDTH;
>>       m_vertical_scale = height / REFERENCE_HEIGHT;
>>       m_dpi_scale = dpi / REFERENCE_DPI;
>> 
>>       // Compute other element scale factor
>>       m_font_scale = qMin(m_horizontal_scale / m_dpi_scale, m_vertical_scale 
>> / m_dpi_scale);
>> 
>> This allow you to have a display that look like each other compare to screen 
>> size. It's maybe not what yo are looking for but might give you some idea to 
>> achieve what you are looking for.
>> 
>> -----Original Message-----
>> From: Interest <interest-bounces+godboutj=amotus...@qt-project.org> On 
>> Behalf Of Roman Wüger
>> Sent: November 14, 2018 11:30 AM
>> To: ekke <e...@ekkes-corner.org>
>> Cc: interest@qt-project.org
>> Subject: Re: [Interest] Problem with font size on Android and High DPI
>> 
>> No, it is a QWidget application with Qt 5.12. I can’t switch to QtQuick 
>> because customer wants existing application to be ported to android tablet.
>> 
>> Regards
>> Roman
>> 
>>>> Am 14.11.2018 um 17:15 schrieb ekke <e...@ekkes-corner.org>:
>>>> 
>>>> Am 14.11.18 um 17:11 schrieb Roman Wüger:
>>>> Hello everyone,
>>>> 
>>>> I enabled the High DPI option on an android tablet. However, the fonts are 
>>>> not resized at all and looks a way too small. I tried the other 
>>>> environment variables too, but the result is not as expected. 
>>>> 
>>>> Does anyone have a hint or how is that done normally?
>>>> 
>>>> Regards
>>>> Roman
>>>> _______________________________________________
>>>> Interest mailing list
>>>> Interest@qt-project.org
>>>> http://lists.qt-project.org/mailman/listinfo/interest
>>>> 
>>> what kind of application ?
>>> 
>>> QtQuickControls2 ?
>>> 
>>> ekke
>>> 
>>> _______________________________________________
>>> Interest mailing list
>>> Interest@qt-project.org
>>> http://lists.qt-project.org/mailman/listinfo/interest
>> 
>> _______________________________________________
>> Interest mailing list
>> Interest@qt-project.org
>> http://lists.qt-project.org/mailman/listinfo/interest
> 
> 
> 
> 
> From: Nguyen Ngoc Thach Chau <chau...@gmail.com>
> Subject: Re: [Interest] Problem with font size on Android and High DPI
> Date: November 15, 2018 at 11:04:41 AM AST
> To: godbo...@amotus.ca
> Cc: roman.wue...@gmx.at, interest@qt-project.org
> 
> 
>         QGuiApplication app(argc, argv);
>         QScreen *screen = app.screens()[0];
>         double dpi = screen->physicalDotsPerInch();
>         dpi-= dpi * 10/100;
>         if(dpi >= 640) dpi = dpi/640; //xxxhdpi
>         else if (dpi >= 480) dpi = dpi/480; //xxhdpi
>         else if (dpi >= 320) dpi = dpi/320; //xhdpi
>         else if (dpi >= 240) dpi = dpi/240; //hdpi
>         else if (dpi >= 160) dpi = dpi/160; //mdpi
>         else if (dpi >= 120) dpi = dpi/120; //ldpi
>         else{
>             dpi = 1;//ldpi
>         }
> I used as above then multiply all font pixels with "dpi".
> 
> 
> On Thu, Nov 15, 2018 at 9:42 PM Jérôme Godbout <godbo...@amotus.ca 
> <mailto:godbo...@amotus.ca>> wrote:
> That I don't known, I'm 100% Qml and I just apply this to my Control style at 
> one place. Maybe there is a way to do this into the cascading widget style...
> 
> -----Original Message-----
> From: Roman Wüger <roman.wue...@gmx.at <mailto:roman.wue...@gmx.at>> 
> Sent: November 14, 2018 1:32 PM
> To: Jérôme Godbout <godbo...@amotus.ca <mailto:godbo...@amotus.ca>>
> Cc: ekke <e...@ekkes-corner.org <mailto:e...@ekkes-corner.org>>; 
> interest@qt-project.org <mailto:interest@qt-project.org>
> Subject: Re: [Interest] Problem with font size on Android and High DPI
> 
> And then I need to go over all widgets and multiply the font scale with 
> current font size?
> 
> Regards 
> 
> > Am 14.11.2018 um 18:17 schrieb Jérôme Godbout <godbo...@amotus.ca 
> > <mailto:godbo...@amotus.ca>>:
> > 
> > Take care the pixel density is way different on a mobile device form a 
> > normal desktop window. You might need to adjust your sizing for many thing. 
> > I do the following, I develop on a particular device with REFERENCE SIZE:
> > 
> > // Collect screen dimension
> >        const QScreen* const screen = QGuiApplication::primaryScreen();
> >        QRect rect = screen->geometry();
> >        const qreal height = qMax(rect.width(), rect.height());
> >        const qreal width = qMin(rect.width(), rect.height());
> >        const qreal dpi = screen->logicalDotsPerInch();
> > 
> >        // Compute reference ratio
> >        m_horizontal_scale = width / REFERENCE_WIDTH;
> >        m_vertical_scale = height / REFERENCE_HEIGHT;
> >        m_dpi_scale = dpi / REFERENCE_DPI;
> > 
> >        // Compute other element scale factor
> >        m_font_scale = qMin(m_horizontal_scale / m_dpi_scale, 
> > m_vertical_scale / m_dpi_scale);
> > 
> > This allow you to have a display that look like each other compare to 
> > screen size. It's maybe not what yo are looking for but might give you some 
> > idea to achieve what you are looking for.
> > 
> > -----Original Message-----
> > From: Interest <interest-bounces+godboutj=amotus...@qt-project.org 
> > <mailto:amotus...@qt-project.org>> On Behalf Of Roman Wüger
> > Sent: November 14, 2018 11:30 AM
> > To: ekke <e...@ekkes-corner.org <mailto:e...@ekkes-corner.org>>
> > Cc: interest@qt-project.org <mailto:interest@qt-project.org>
> > Subject: Re: [Interest] Problem with font size on Android and High DPI
> > 
> > No, it is a QWidget application with Qt 5.12. I can’t switch to QtQuick 
> > because customer wants existing application to be ported to android tablet.
> > 
> > Regards
> > Roman
> > 
> >>> Am 14.11.2018 um 17:15 schrieb ekke <e...@ekkes-corner.org 
> >>> <mailto:e...@ekkes-corner.org>>:
> >>> 
> >>> Am 14.11.18 um 17:11 schrieb Roman Wüger:
> >>> Hello everyone,
> >>> 
> >>> I enabled the High DPI option on an android tablet. However, the fonts 
> >>> are not resized at all and looks a way too small. I tried the other 
> >>> environment variables too, but the result is not as expected. 
> >>> 
> >>> Does anyone have a hint or how is that done normally?
> >>> 
> >>> Regards
> >>> Roman
> >>> _______________________________________________
> >>> Interest mailing list
> >>> Interest@qt-project.org <mailto:Interest@qt-project.org>
> >>> http://lists.qt-project.org/mailman/listinfo/interest 
> >>> <http://lists.qt-project.org/mailman/listinfo/interest>
> >>> 
> >> what kind of application ?
> >> 
> >> QtQuickControls2 ?
> >> 
> >> ekke
> >> 
> >> _______________________________________________
> >> Interest mailing list
> >> Interest@qt-project.org <mailto:Interest@qt-project.org>
> >> http://lists.qt-project.org/mailman/listinfo/interest 
> >> <http://lists.qt-project.org/mailman/listinfo/interest>
> > 
> > _______________________________________________
> > Interest mailing list
> > Interest@qt-project.org <mailto:Interest@qt-project.org>
> > http://lists.qt-project.org/mailman/listinfo/interest 
> > <http://lists.qt-project.org/mailman/listinfo/interest>
> 
> _______________________________________________
> Interest mailing list
> Interest@qt-project.org <mailto:Interest@qt-project.org>
> http://lists.qt-project.org/mailman/listinfo/interest 
> <http://lists.qt-project.org/mailman/listinfo/interest>
> 
> 
> _______________________________________________
> Interest mailing list
> Interest@qt-project.org
> http://lists.qt-project.org/mailman/listinfo/interest

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