Qt Creator and other tools

@AndrzejB said in Signals and Slots from internal: Re: How works MOC ? Where can I find more content not just MOC but signals/slots infrastructure? https://woboq.com/blog/how-qt-signals-slots-work.html https://woboq.com/blog/how-qt-signals-slots-work-part2-qt5.html https://woboq.com/blog/how-qt-signals-slots-work-part3-queuedconnection.html

Hi, The compiler is tied to a kit. From what you wrote you seem to be using a single kit and change the settings of it which I find surprising.

@JKSH Yes now It's working Thank you so much!

Newermind, this is https://bugreports.qt.io/browse/QTCREATORBUG-25192 that hasn't been fixed. QtCreator doesn't work with /DEBUG:FASTLINK (or more specifically the Python Dumper), and the bugfix is simply "don't do that".

void Cran::paintEvent(QPaintEvent *event) { QPainter painter(this); // Создаём объект отрисовщика QBrush bgfon(QColor(48,172,220),Qt::NoBrush); // устанавливаем цвет фона и тип заливки (с фоном без фона и тип заливки) painter.setRenderHint(QPainter::Antialiasing); // убираем резкие кубики QPen pen_osn(Qt::black, 2, Qt::SolidLine, Qt::FlatCap); // кисть для основного тела QPen pen_bashn(Qt::black, 4, Qt::SolidLine, Qt::FlatCap); // кисть для башни painter.setBrush(bgfon); // задаём цвет фона painter.setPen(pen_osn); // Устанавливаем кисть для линий и текста QPainterPath path; // ресуем основные элементы QPainterPath path2; // обводы элемент обводов QPen pen2(Qt::darkGray); // обводы элемент обводов заменить на выборочный цвет pen2.setWidthF(_myTexpr.size_mask); // обводы размер painter.setRenderHint(QPainter::Antialiasing); // убираем резкие кубики // блок чтоб не пересчитывать если размеры не изменились if( _myTexpr.screen_size_x != this->width()) { _myTexpr.screen_size_x = this->width(); _myTexpr.screen_size_y = this->height(); size_wgt_cran(this->width(), this->height()); } if(_myTexpr.screen_size_y != this->height()) { _myTexpr.screen_size_x = this->width(); _myTexpr.screen_size_y = this->height(); size_wgt_cran(this->width(), this->height()); } // ---------рисуем фон ------------ if(_myTexpr.substrate == true) { qDebug() << "1"; // bgfon.setColor(Qt::red); painter.setBrush(_myTexpr.rgb); painter.drawRect( 0, 0, _myTexpr.screen_size_x, _myTexpr.screen_size_y); // рисуем квадрат } if(_myTexpr.substrate == false) { qDebug() << "2"; painter.setBrush(_myTexpr.rgb); painter.drawRect( 0, 0, _myTexpr.screen_size_x, _myTexpr.screen_size_y); } // ---------рисуем корпус------------ // обводы if(_myTexpr.outline == true) { path2.addRect(_myTexpr.centering_by_x+_myTexpr.cran_height/2.1, _myTexpr.centering_by_y+_myTexpr.cran_width/2.1, _myTexpr.cran_width, _myTexpr.cran_height); painter.strokePath(path2, pen2); // обводы элемент обводов painter.drawPath(path2); } path.addRect( _myTexpr.centering_by_x+_myTexpr.cran_height/2.1, _myTexpr.centering_by_y+_myTexpr.cran_width/2.1, _myTexpr.cran_width, _myTexpr.cran_height ) ; painter.drawPath(path); // очищаем эту хрень path.clear(); path2.clear(); // центрирование, поворот, возвращаем центрирование painter.translate(this->width()/2.0, this->height()/2.0); painter.rotate(_myTexpr.m_pitch); painter.translate(-this->width()/2.0, -this->height()/2.0); if(_myTexpr.outline == true) { path2.addRect( _myTexpr.centering_by_x+_myTexpr.cran_height/1.2, _myTexpr.centering_by_y+_myTexpr.cran_width/4.1, _myTexpr.cran_width/5, _myTexpr.cran_height/1.5 ) ; painter.strokePath(path2, pen2); // обводы элемент обводов painter.drawPath(path2); } path.addRect( _myTexpr.centering_by_x+_myTexpr.cran_height/1.2, _myTexpr.centering_by_y+_myTexpr.cran_width/4.1, _myTexpr.cran_width/5, _myTexpr.cran_height/1.5 ) ; painter.drawPath(path); } this ansfer path.clear(); path2.clear(); [image: 29bae9f5-f777-4e5a-bd20-b2b5ce7f7fc8.png]

Hi @kkoehne , Many thanks! Yes, I have been creating the projects in QtCreator. I'm on Debian but the path is the same. I had been searching in every available cmake directory and hadn't got round to diving down the qtcreator tree.

It does not appear there's a similar setting for qmake.

@m3g1dd said in qglobal.h(45): fatal error C1083: Cannot open include file: 'type_traits': No such file or directory: ‎我在PowerShell上运行命令。通过使用命令提示符解决了该问题！‎ How to do it, detailed steps

Position the cursor at the beginning of the code block and then use key combination Ctrl+Shift+] https://doc.qt.io/qtcreator/creator-keyboard-shortcuts.html#editing-keyboard-shortcuts

@jsulm said in Linker Error: @Charon117 said in Linker Error: INCLUDEPATH += %TEMP% Remove these two lines. For some reason only main.c file is built. Did you try a complete rebuild: Delete build folder Run qmake Build Ok, so the weirdest thing happened. It works now. No clue how that happened, or what i did to change it. But ... lol ... check this out. I delete the whole build folder, eg. build-SoftwareKursC-Desktop_Qt_5_15_2_MinGW_64_bit-Debug Then i compile with Qt Creator, and i only use #include *.c files. Then i comment out the *.c includes and enable the *.h includes. This leads us to exactly the error i described. Another delete later: I compile this time with *.h files and then change them to *.c files. I get a completely different linker error, but a linker error nonetheless. Another delete: I only compile with *.h includes and it works. No changing afterwards. Another delete: I only compile with *.c includes and it works. No changing afterwards. Conclusion: Changing compilation from *.h to *.c includes leads to linker errors, as well as changes from *.c to *.h includes. Deleting the build folder in both cases is the solution. What kind of clusterfucking mindblowing error is this ? Thanks for the help, i guess i will mark this as solved. Thanks to @jsulm for suggesting the correct solution. I will make a note that in case of mysterious bugs deleting the build folder is priority number one. If somebody has an explanation of why this is happening they can add it as another post. Thank you all for participating in this discussion.

@AnneRanch said in How to move / duplicate existing slot: Is there a more cleaner way to do so? No

@AnneRanch said in Code beautifier - Artistic Style update - remove empty lines.: is it an option in Qt ? Since you can define the astyle style you want to use in QtCreator by your own - yes.

See https://forum.qt.io/topic/134040/

Hi koahnig - I wasn't clear in my OP: I'm using the Qt libraries 5.15.2, not Creator which, as you said, didn't exist at that version number. Maybe it's not Creator, but an old app that used to build and run now gives me an error when I try to debug: can't find linker symbol for virtual table for `ModelApScan' value section .gnu_debuglink not found in C:\Qt\5.15.2\mingw81_32\plugins\platforms\qwindows.dll.debug section .gnu_debuglink not found in C:\Qt\5.15.2\mingw81_32\plugins\styles\qwindowsvistastyle.dll.debug ModelApScan is one of my classes. I get the .gnu_* messages when I try to execute this line: QApplication a(argc, argv); Like I said, this used to build and run without incident, and I haven't changed the app. Not sure what's going on... EDIT: this question is completely different from my original. I'll mark this solved and open a new question. Thanks...

@sierdzio I tried your suggestion to wipe the Qt Creator settings, caches, etc. from my user directory (on Windows, these can be found at C:\Users\$USERNAME\AppData\Roaming\QtProject). It worked! Locator is fast again! I had to reconfigure a few things in Qt Creator, which I had previously, but that was no problem. Thank you very much.

@sierdzio Thank you for the answer! I wondered about the running in one click, but your approach is ok as well, but... I have no such option in right-click context menu (Qt Creator 7.0.0-beta2, 6.83.0). Looks lit this option is available for the qmake-based project and subproject. In my case cmake projects can not be run through this menu.