Re: [Development] Exceptions

On 2024-05-07 21:05, Turtle Creek Software wrote: TurtleSoft posted on the Interest list earlier about problems we had with exception handling, and Thiago suggested I post here. Since the early 90s, our C++ code has had about 10,000 sanity checks which give an error message with source file &

Re: [Development] Issues with QPainter::drawPolygon (off by one error?)

On 2024-04-28 11:00, Christian Ehrlicher via Development wrote: Am 26.04.2024 um 22:48 schrieb Henry Skoglund: On 2024-04-26 21:52, Christian Ehrlicher via Development wrote: Hello, I'm currently trying to investigate a painting problem within the windowsvista / common style:     QImage

Re: [Development] Issues with QPainter::drawPolygon (off by one error?)

On 2024-04-26 21:52, Christian Ehrlicher via Development wrote: Hello, I'm currently trying to investigate a painting problem within the windowsvista / common style:     QImage img(7, 7, QImage::Format_ARGB32_Premultiplied);     QPolygon poly{ QPoint(1, 1), {5, 1}, {3, 5} };     QPainter p();  

Re: [Development] Copying a struct the easy (perhaps too easy) way

On 2023-09-16 01:55, Giuseppe D'Angelo via Development wrote: Wrong mailing list? Il 16/09/23 01:41, Henry Skoglund ha scritto: S a; S b = a.clone(); it seems to work like a charm (6.5.2 on Linux and the Mac. 5.15.2 on Windows) but my question is if it's kosher? You class has value

[Development] Copying a struct the easy (perhaps too easy) way

Hi, just got the need to copy a struct so I started doing it the hard way (i.e. member by member) but on a lark I tried a simple copy from *this, say like this: struct S {     int i;     QString s;     QDate d;     QStringList sl;     S clone() { return *this; } }; S a; S b = a.clone(); it

Re: [Development] Using '#pragma once' instead of include guards?

On 2022-10-11 22:04, Thiago Macieira wrote: ... // This macro can be used to calculate member offsets for types with a non standard layout. // It uses the fact that offsetof() is allowed to support those types since C++17 as an optional // feature. All our compilers do support this, but some

Re: [Development] Using '#pragma once' instead of include guards?

On 2022-10-10 21:27, Thiago Macieira wrote: ... This situation is annoying either way. With include guards, you will get a working build, but you may spend some time trying to figure out why the changes you're making to the headers aren't taking effect. With the pragma, you get hard build errors

Re: [Development] Windows plugin customisation: QWindowsKeyMapper

On 2022-08-02 00:07, Laszlo Papp wrote: #include #include #include class MyMSGEventFilter : public QAbstractNativeEventFilter { public:     bool nativeEventFilter(const QByteArray , [[maybe_unused]] void *message, long *) override     {         std::cout << eventType.toStdString() <<

Re: [Development] Qt 6 not seeing the same DPI as Qt 5

On 2021-11-29 17:41, Thiago Macieira wrote: I'll probably have to report this as a bug, but just in case someone has seen it before: $ diff -u qtdiag5 qtdiag6 [...] Geometry: 1920x1200+0+0 (native: 3840x2400+0+0) Available: 1920x1200+0+0 Virtual geometry: 5760x1200+0+0 Available:

Re: [Development] QString, QVariant and QSQLite

On 2021-05-26 21:39, Alberto Mardegan wrote: Hi there! I'm encountering some sort of memory corruption issue in a library I'm using, which does not cause a crash, but rather a QSQLite query to sometimes simply return no results, without errors or warnings. You can find the valgrind trace

Re: [Development] Deprecated/Obsolete API that survived the transition from Qt 5 to Qt 6

On 2021-04-07 16:11, Volker Hilsheimer wrote: On 7 Apr 2021, at 15:55, Allan Sandfeld Jensen wrote: On Mittwoch, 7. April 2021 15:18:10 CEST Giuseppe D'Angelo via Development wrote: Il 07/04/21 14:56, Sze Howe Koh ha scritto: Is it acceptable to remove them during Qt 6's lifetime? Or should

Re: [Development] QProperty and library coding guide

On 2020-07-23 23:09, Ville Voutilainen wrote: On Fri, 24 Jul 2020 at 00:03, Ville Voutilainen wrote: On Thu, 23 Jul 2020 at 23:59, Thiago Macieira wrote: On Thursday, 23 July 2020 12:34:06 PDT Simon Hausmann wrote: I think the primary environment where a transition and resulting BC breakage

Re: [Development] Qt 6 high-dpi support

On 2020-05-13 23:41, Henry Skoglund wrote: On 2020-05-13 16:53, Morten Sørvig wrote: We are indeed planning to addreess high-DPI support for Qt 6. You can test the implementation on Qt 5.14+ today by setting QGuiApplication::setAttribute(Qt::AA_EnableHighDpiScaling); QGuiApplication

Re: [Development] Qt 6 high-dpi support

On 2020-05-13 16:53, Morten Sørvig wrote: We are indeed planning to addreess high-DPI support for Qt 6. You can test the implementation on Qt 5.14+ today by setting QGuiApplication::setAttribute(Qt::AA_EnableHighDpiScaling);

Re: [Development] QString and related changes for Qt 6

On 2020-05-12 12:36, Lars Knoll wrote: ... Leaving things behind simplifies our lives and in the longer term also our users life. And yes, non unicode encodings are legacy in todays world. They need to disappear, and most people are working towards that goal. We can and should do our part.

Re: [Development] [Announce] Qt Creator 4.12 released

On 2020-04-23 11:48, List for announcements regarding Qt releases and development wrote: We are happy to announce the release of Qt Creator 4.12! https://www.qt.io/blog/qt-creator-4.12-released Thank you! I like the new Restart feature, i.e. when you switch Theme, say from Flat Light to Flat

Re: [Development] Thank you for qScopeGuard

PM Henry Skoglund <mailto:he...@tungware.se>> wrote: Hi, just want to thank whoever worked to implement qScopeGuard (in 5.12), it was a perfect gift from heaven today :-) I'm writing a LOB app with heavy database munging, and want to show the user an hourglass cur

[Development] Thank you for qScopeGuard

Hi, just want to thank whoever worked to implement qScopeGuard (in 5.12), it was a perfect gift from heaven today :-) I'm writing a LOB app with heavy database munging, and want to show the user an hourglass cursor while munging/waiting for MS SQLServer. However my functions have lots of exits

Re: [Development] New Qt vulnerabilities

On 2020-01-30 18:09, Olivier Goffart wrote: On 30/01/20 17:12, Thiago Macieira wrote: On Thursday, 30 January 2020 03:05:50 PST Olivier Goffart wrote: $PWD is not the same as the binary dir (QCoreApplication::applicationDirPath) The later is still searched while looking for plugin. (so that

Re: [Development] Qt 5.14 MinGW debug build doesn't add debug suffix

On 2020-01-14 09:02, Kai Köhne wrote: From: Development On Behalf Of Dmitriy Purgin Sent: Tuesday, January 14, 2020 8:46 AM To: Thiago Macieira Cc: Qt development mailing list Subject: Re: [Development] Qt 5.14 MinGW debug build doesn't add debug suffix I've just discovered another

Re: [Development] Dark appearance on iPhone not so dark

On 2019-12-27 13:35, Shawn Rutledge wrote: On 26 Dec 2019, at 01:09, Henry Skoglund wrote: Hi, just tested my first Qt 14.0 iPhone app. My iPhone is running iOS 13 and I'm using the new dark appearance mode on it. When I run my Qt app (a vanilla widgets app just invoking a QMessageBox

[Development] Dark appearance on iPhone not so dark

Hi, just tested my first Qt 14.0 iPhone app. My iPhone is running iOS 13 and I'm using the new dark appearance mode on it. When I run my Qt app (a vanilla widgets app just invoking a QMessageBox and then exiting) on my Mac, which is set to dark mode, everything is indeed dark in my Qt app

Re: [Development] QWidget font settings propagation parent to child

On 2019-10-24 08:13, Giuseppe D'Angelo via Development wrote: Il 23/10/19 16:28, Henry Skoglund ha scritto: Question: is this hit or miss font propagation on Windows and Mac a bug or a feature? If it's a feature, could it be documented? Please do some extra investigation: who's setting those

Re: [Development] QWidget font settings propagation parent to child

On 2019-10-23 20:49, Elvis Stansvik wrote: Den ons 23 okt. 2019 kl 20:18 skrev Ville Voutilainen : On Wed, 23 Oct 2019 at 18:49, Elvis Stansvik wrote: Den ons 23 okt. 2019 16:29Henry Skoglund skrev: Hi, I use Qt Creator's excellent Form Editor, however sometimes I've noticed an

[Development] QWidget font settings propagation parent to child

Hi, I use Qt Creator's excellent Form Editor, however sometimes I've noticed an inconsistency in the font settings, because I'm lazy I usually only set the font property for the top MainWindow and relying on it to "trickle down" and affect the widgets as well. Except sometimes it doesn't

Re: [Development] Wither QString?

, won't happen again :-) On 2019-10-18 03:49, Sze Howe Koh wrote: On Fri, 18 Oct 2019 at 08:43, Alexander Nassian wrote: C++ hasn‘t even proper Unicode handling integrated. std::string is a mess in my opinion. Beste Grüße / Best regards, Alexander Nassian Am 18.10.2019 um 02:30 schrieb Henry

[Development] Wither QString?

Hi, while writing lots of QString string fiddling code (keyboard macro utility) I feel something tugging at my sleeve: the upcoming C++20, looking at std::format(), it seems really handy, e.g.: std::string s = std::format("String '{}' has {} characters\n", string, string.length()); // for a

Re: [Development] Dropping MinGW support in Qt 6 (Was: HEADS-UP: QStringLiteral)

rom:* Development on behalf of Henry Skoglund *Sent:* Wednesday, August 21, 2019 9:36 PM *To:* Elvis Stansvik *Cc:* Qt development mailing list *Subject:* Re: [Development] Dropping MinGW support in Qt 6 (Was: HEADS-UP: QStringLiteral) Yes, I also used app-local deployment, problem is that Mic

Re: [Development] Dropping MinGW support in Qt 6 (Was: HEADS-UP: QStringLiteral)

building wizard, like showing say the most common static build flavors as check boxes, and perhaps a detailed view for cherrypicking exactly what modules you want. Rgrds Henry On 2019-08-21 23:10, Ola Røer Thorsen wrote: ons. 21. aug. 2019 kl. 20:54 skrev Henry Skoglund <mailto

Re: [Development] Dropping MinGW support in Qt 6 (Was: HEADS-UP: QStringLiteral)

, 22:39, "Henry Skoglund" : Yes, I also used app-local deployment, problem is that Microsoft has not committed 100% to allow it (as far as I know), instead they have a seesaw approach, saying "you can temporarily use app-local deployment but.." Anyway, my ultimate goal is to c

Re: [Development] Dropping MinGW support in Qt 6 (Was: HEADS-UP: QStringLiteral)

:22, Elvis Stansvik wrote: Den ons 21 aug. 2019 kl 20:52 skrev Henry Skoglund : Please, don't drop MinGW, it's in my meaning the best compiler on Windows. I've switched from VS to MinGW, the #1 reason: I can distribute an .exe file which is runnable directly on the user's desktop (no in

Re: [Development] Dropping MinGW support in Qt 6 (Was: HEADS-UP: QStringLiteral)

Please, don't drop MinGW, it's in my meaning the best compiler on Windows. I've switched from VS to MinGW, the #1 reason: I can distribute an .exe file which is runnable directly on the user's desktop (no installation). This is *verboten* when using VS, you have to send along the distribution

Re: [Development] Qt 6 Planning: Consideration of dropping support for UWP applications

On 2019-04-18 14:46, Oliver Wolff wrote: Hi, as you might have heard, we are currently in Qt 6's planning phase and thus checking things that have to be done to make Qt even better. Of course we also want to use this opportuniy to drop support for platforms that are no longer relevant in Qt's

Re: [Development] Missing documentation in Qt 5.12

On 2018-12-19 19:26, Thiago Macieira wrote: On Wednesday, 19 December 2018 04:38:48 PST Martin Smith wrote: 1. Simply merge the inherited members into the list that is already there. 2. Merge the inherited members into the list but qualified with their base class name. 3. list the inherited

Re: [Development] Suggestion - Remove Windows 7 as supported development host

Hi, you mean I will not able to use Qt Creator on my Windows 7 machine after 5.12? Please do not toss Windows 7 out of the window this fast. Don't know about MSVC2021 yet, but MSVC2019 is the same 32-bit flavored app that MSVC2017 is and MSVC2019 will run on Windows 7 SP1, i.e. I will be able

Re: [Development] Using #pragma once

On 2018-10-08 18:12, Matthew Woehlke wrote: On 08/10/2018 02.23, Henry Skoglund wrote: So, what about a new preprocessor command: __has_same_md6_digest See also http://wg21.link/p0538 and note that EWG rejected it. The general consensus, AFAICT, is that modules is expected to make all

Re: [Development] Using #pragma once

On 2018-10-08 07:13, Thiago Macieira wrote: On Sunday, 7 October 2018 15:17:30 PDT Henry Skoglund wrote: I recommend against changing Qt. Hi, but isn't C++17's __has_include preprocessor cmd an implicit endorsement of #pragma once? I mean, they both assume that the file namespace is stable

Re: [Development] Using #pragma once

On 2018-10-07 20:39, Thiago Macieira wrote: On Sunday, 7 October 2018 01:56:47 PDT Lars Knoll wrote: Hi, Just a quick question: Does anybody have any good arguments against us starting to use #pragma once instead of header guards throughout our code base? Yes, two: a) not supported

Re: [Development] To improve UX of the online installer

Hi, excellent initiative, a better MaintenanceTool UX would also improve the general opinion of Qt I think. Just one to add 2 things to Sze Howe's list: 8c. For the users that, in search of a 32-bit MSVC2017-flavored Qt version, downloads the UWP x86 (MSVC 2017) version of Qt, and then tries

Re: [Development] Prebuilt 32-bit versjon for MSVC 2017

On 2018-02-21 14:22, Maurice Kalinowski wrote: The reason we have had x86 and x64 packages for UWP is not to target those two architectures for the desktop, but rather that the x86 version also works for the emulators for Windows Phone 8 / Windows 10 Mobile as well as Windows 10 IoT (Core).

Re: [Development] #pragma once

On 2018-01-24 16:19, Ville Voutilainen wrote: On 24 January 2018 at 16:30, Oswald Buddenhagen wrote: but that's only tangentially related to the issue at hand, because the compiler would still pick only one of the files under normal circumstances. a problem would

Re: [Development] QRandomGenerator and boot times

On 2017-09-14 09:21, Sami Nurmenniemi wrote: Hi, Commit 120ecc976fc3d5504d234702f68c2ad3898b77a4 changes default behavior of QRandomGenerator to use getentropy instead of /dev/urandom. This causes problems for device boot times when using QRandomGenerator in the boot sequence. As the commit

Re: [Development] How to make a fancy QMap c++17 initializer_list

On 2017-07-24 21:32, Grégoire Barbier wrote: Le 24/07/2017 à 18:45, Henry Skoglund a écrit : QMap m1 = {std::pair{2,"score"}, {4,"seven"}, {1,"Four"}, {5,"years"}, {3,"and"}, {6,"ago"}}; Or even this: QMap<int, const char

Re: [Development] How to make a fancy QMap c++17 initializer_list

On 2017-07-24 16:53, Thiago Macieira wrote: On Monday, 24 July 2017 00:00:36 PDT Marc Mutz wrote: Hi, We haven't added deduction guides to any Qt class, yet. If you want to use bleeding-edge C++, use C++, iow: std::map. std::map currently (GCC 7.1.1) works less well than QMap, since you

Re: [Development] How to make a fancy QMap c++17 initializer_list

-- It's just QMap that I got stuck on, but as you say, it's very bleeding edge, mostly for showing off :-) /Henry On 2017-07-24 09:00, Marc Mutz wrote: Hi, We haven't added deduction guides to any Qt class, yet. If you want to use bleeding-edge C++, use C++, iow: std::map. Patches welco

[Development] How to make a fancy QMap c++17 initializer_list

Hello, I've been testing more C++17 class template auto deduction awith gcc-7, and got stuck on QMap, consider this simple test program: - #include "qapplication.h" #include "qmap.h" #include "qdebug.h" int main(int argc, char

Re: [Development] [BB++] Now is 3.5x faster than Node.JS

On 2017-07-24 00:13, Phil Bouchard wrote: On 07/23/2017 03:54 PM, Thiago Macieira wrote: On Sunday, 23 July 2017 12:27:44 PDT Phil Bouchard wrote: .. .. .. How does your tool deal with runtime code generation via eval() ? First you need to ask yourself if that function is really used a lot

[Development] A taste of the future: declaring QLists without <>

Hi, reading about the new C++17 standard, I decided to test some Qt code: ... QList li = {7,8,4,2,5,4,3}; QList ll = {5,3,34,5,44}; qDebug() << li; qDebug() << ll; ... The normal g++ 5.4 on vanilla Qt 5.9.1 on my Ubuntu 16.04 returns: "home/henry/test/mainwindow.cpp:13: error: missing template

Re: [Development] ActiveQt Events

On 2017-06-27 10:54, neel patel wrote: Hi All, As I am using "QAxWidget". I took the "webbrowser" example as reference. As I am using "QTabWidget" as mainwindow widget and adding "QAxWidget" as tab widget. Below is the code for reference. m_tabWidget = new QTabWidget(mainwindow);

Re: [Development] Let's please drop MSVC 2013 for 5.10

On 2017-06-16 21:52, Thiago Macieira wrote: On Friday, 16 June 2017 11:14:20 PDT André Pönitz wrote: On Thu, Jun 15, 2017 at 04:07:03PM -0700, Thiago Macieira wrote: character set. Without the /utf-8 option added in MSVC 2015 Update 2, the conversion fails and the compiler prints: warning

Re: [Development] std::atomic

On 2016-10-21 00:11, Sergio Martins wrote: On 2016-10-20 21:43, Thiago Macieira wrote: Em quinta-feira, 20 de outubro de 2016, às 17:28:39 PDT, Philippe escreveu: std::atomic is used as underlying implementation for the the Qt atomic API with CLang on Mac. But why not with Visual Studio 2015?

Re: [Development] linuxdeployqt

On 2016-09-21 17:02, Thiago Macieira wrote: On quarta-feira, 21 de setembro de 2016 11:06:59 PDT Konrad Rosenbaum wrote: RPath may be a bit tricky: normally Qt compiles it's lib path into RPath, but with a deploy script you do not want that RPath anymore, instead you'd want to change it to

Re: [Development] Programs crashing left and right in the CI

Hi, most likely I've had too much coffee, but has anyone checked if these intermittent crashes are due to outside DDOS/some trying to introduce a race condition and injecting new code into Qt's codebase? Rgrds Henry On 2016-07-26 23:24, Giuseppe D'Angelo wrote: On Mon, Jul 25, 2016 at 5:51

Re: [Development] Qt 5.7.0 rc packages for testing

On 2016-06-06 15:27, Ronan Jouchet wrote: On 2016-06-03 18:40, Henry Skoglund wrote: Hi, just tested 5.7 RC on Ubuntu, looks good. (Also I see Qt Creator 4.01's project view has nicer icons.) Hi Henry. What do you mean? Could you be also affected by https://bugreports.qt.io/browse/QTBUG

Re: [Development] Qt 5.7.0 rc packages for testing

Hi, just tested 5.7 RC on Ubuntu, looks good. (Also I see Qt Creator 4.01's project view has nicer icons.) But I spotted one problem, problem for me at least: When building a vanilla HelloQt widgets test app, I notice that the chrpath of the app just points to Qt's installation path, e.g.:

[Development] Modify QLibraryInfo to support any default location of qt.conf

Hi, this is the same problem that the Qt installation program has, it solves it by binary patching your copy of Qt5Core.dll when it installs Qt onto your computer (e.g. set qt_prfxpath="C:\Qt\5.5\msvc2013"). Maybe you can to the same? Or perhaps a more viable long-range solution is to

Re: [Development] could not find or load the Qt platform plugin "cocoa"

Hi, just guessing but if your /Volumes/Data is an external hard disk this might be due to a permissions problem. If you try testing by (temporarily!) move the platforms directory (containing the libqcocoa.dylib file) from /Library/Application Support/Waves/WavesQtLibs_5.5.1/plugins/ to

Re: [Development] date/time adjust for (auto) testing

Hi, I also had the same needs for testing my app, on different times of the day or year etc. But instead of patching Windows or some Qt code, I created a new virtual Windows VM in WMWare, and deployed my app into it. Switched off Synchronize guest time with host in the Options, and whenever I

Re: [Development] Upgrading the sources to C++11 keywords (Q_NULLPTR, etc.)

Hi, just my 2 cents: just coding some database stuff using QVariants, and invariably (especially Monday mornings) it takes me a couple of milliseconds extra to comprehend what the tooltip for QVariant's toInt() means: int toInt(bool *ok = 0) const; instead, if qvariant.h could be written

Re: [Development] Deprecating modules with 5.5

+1 for dropping VS2008. For those with thin wallets it's easier to upgrade nowadays anyway to the VS2013 Community Edition. /Rgrds Henry On 2015-02-05 08:31, Bo Thorsen wrote: Den 04-02-2015 kl. 15:56 skrev Olivier Goffart: On Wednesday 04 February 2015 09:23:12 Knoll Lars wrote: On 04/02/15

[Development] libqsqlodbc.dylib has jumped the shark?

Hi, just installed Qt 5.4 on OSX (with the online installer) noticed that libqsqlodbc.dylib isn't included in the plugins/sqldrivers folder anymore (it was there in 5.2 and 5.3). If this removal is by purpose, for example to fix QTBUG-37835, then I can fully understand the decision; using

Re: [Development] Qt 4.x and Qt 5 frameworks should use @rpath (QTBUG-31814)

On 2014-08-01 21:01, Adam Strzelecki wrote: ... Well, to be frank there is a simple workaround for that :) Why not symlink Qt frameworks at build time, then replace symlinks with real copies on deployment step? So the easiest solution would be to symlink Qt frameworks when your create

Re: [Development] Online installer no longer lets users choose between Qt 5.3.0 and Qt 5.3.1

Hi, I think treating Qt 5.3.1 as a patch level upgrade to 5.3 is a good idea, but currently in execution it’s a bit lacking, i.e. when I do fresh installs of 5.3.1: Windows 1st line from qtdiag: “Win: Qt 5.3.1 (Jun 19 2014, MSVC 2013, 32 bit, release build) on “windows” little endian/“ Windows