General and Desktop

@SGaist Thank you! I will reduce the acount of data point

@SGaist thank you by reply. i found the solution. My computer have not the MSVCR120.DLL, i fix it installing the Miscrosoft Visual Studio 2013 x86 redistributable, i found the problem using de debuguer tool of QtCreator.

Here's the complete Qt message list: "jeu. nov. 5 16:34:46 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 356 wParam : 0 lParam : 1089846887984 "jeu. nov. 5 16:34:46 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 3107661501 lParam : -25 "jeu. nov. 5 16:34:46 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 356 wParam : 0 lParam : 1089846887984 "jeu. nov. 5 16:34:46 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 356 wParam : 0 lParam : 1089846887984 "jeu. nov. 5 16:34:46 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -5 "jeu. nov. 5 16:34:46 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -6 "jeu. nov. 5 16:34:46 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -2 "jeu. nov. 5 16:34:50 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 356 wParam : 0 lParam : 1089846887984 "jeu. nov. 5 16:34:50 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -5 "jeu. nov. 5 16:34:50 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -6 "jeu. nov. 5 16:34:50 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -2 "jeu. nov. 5 16:34:50 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -1 "jeu. nov. 5 16:34:50 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -1 "jeu. nov. 5 16:34:50 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -2 "jeu. nov. 5 16:34:50 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -3 "jeu. nov. 5 16:34:50 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -7 "jeu. nov. 5 16:34:50 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 0 lParam : -25 "jeu. nov. 5 16:34:50 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 356 wParam : 0 lParam : 1089846887984 "jeu. nov. 5 16:34:50 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 0 lParam : -25 "jeu. nov. 5 16:34:50 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 356 wParam : 0 lParam : 1089846887984 "jeu. nov. 5 16:34:50 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -1 "jeu. nov. 5 16:34:50 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -1 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -1 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -2 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -2 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -2 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -2 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -2 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -2 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -2 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -2 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 8276 lParam : -2 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 70 wParam : 0 lParam : 1089846888016 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 71 wParam : 0 lParam : 1089846888016 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 28 wParam : 1 lParam : 19180 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 134 wParam : 1 lParam : 0 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 6 wParam : 1 lParam : 0 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 641 wParam : 1 lParam : 3221225487 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 642 wParam : 2 lParam : 0 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 7 wParam : 0 lParam : 0 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 15456 lParam : 4294967292 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 0 lParam : -12 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 0 lParam : -12 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 4294967295 lParam : 0 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 61 wParam : 0 lParam : -12 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 256 wParam : 255 lParam : 21299201 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 537 wParam : 7 lParam : 0 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 257 wParam : 255 lParam : 3242524673 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 256 wParam : 231 lParam : 1 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 258 wParam : 65 lParam : 1 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 256 wParam : 231 lParam : 1073741825 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 258 wParam : 66 lParam : 1073741825 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 256 wParam : 231 lParam : 1073741825 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 258 wParam : 67 lParam : 1073741825 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 256 wParam : 255 lParam : 21299201 "jeu. nov. 5 16:34:51 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 257 wParam : 255 lParam : 3242524673 "jeu. nov. 5 16:34:54 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 134 wParam : 0 lParam : 0 "jeu. nov. 5 16:34:54 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 6 wParam : 0 lParam : 0 "jeu. nov. 5 16:34:54 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 28 wParam : 0 lParam : 8128 "jeu. nov. 5 16:34:54 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 8 wParam : 0 lParam : 0 "jeu. nov. 5 16:34:54 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 641 wParam : 0 lParam : 3221225487 "jeu. nov. 5 16:34:54 2020" > "windows_generic_MSG" hwnd : 0x1605e2 message : 642 wParam : 1 lParam : 0

turns out that what i described above was EXACTLY what i needed. code below: typedef std::deque<float> FloatQueue; class CScrollQueue : public CT_Timer { typedef CT_Timer _inherited; static CScrollQueue *s_this; FloatQueue i_floatQueue; CDataBrowser *i_browserP; #define kScrollTimerInterval 0.1f void DoVScroll(float incrementF) { PointS32 scrollPos(i_browserP->GetScrollPos()); scrollPos.v += incrementF; i_browserP->SetScrollPos(scrollPos); } public: CScrollQueue() : _inherited("CScrollQueue", kScrollTimerInterval), i_browserP(gApp->GetDataBrowser(BW_Control_TRACKS)) { call(); } static CScrollQueue* Get() { if (s_this == NULL) { s_this = new CScrollQueue(); } return s_this; } void vscroll(float angleF) { if (angleF) { if (i_floatQueue.empty()) { SetFireInterval(kScrollTimerInterval); } i_floatQueue.push_back(angleF); } } OSStatus operator()() { while (!i_floatQueue.empty()) { float velocityF(-i_floatQueue.back() / 2); i_floatQueue.clear(); // during DoVScroll, more events // may come into the floatQueue DoVScroll(velocityF); } SetFireInterval(kEventDurationForever); return threadTimerContinue_noPrime; } }; // static CScrollQueue* CScrollQueue::s_this = NULL; then, in my eventFilter method: case QEvent::Wheel: { if (objP == getTracksList()->viewport()) { QWheelEvent *wheel_event(static_cast<QWheelEvent*>(eventP)); double angleF(wheel_event->angleDelta().y()); handledB = angleF != 0; if (handledB) { CScrollQueue::Get()->vscroll(angleF); } } } break;

Hi, I'd rather avoid the program directory as application are usually installed in folders that have write restrictions. As @Pl45m4 suggested, use QStandardPaths to get a suitable write location.

@jeremy_k said in Show cursor in read-only QTextEdit: I'm running Kubuntu 20.04 with Qt version 5.18.5. Presumably this is a typo. 5.15 is the end of the Qt 5 series. Oops, 5.18.5 is my Plasma version. I'm on Qt 5.12.8. Override keyPressEvent() in the subclass and do the condition testing there. Don't pass the event to QTextEdit::keyPressEvent() unless the conditions are met. That's actually what I ended up doing.

@LeLev Thank you.

I missed stating the separator in the method. Like this it works: void LanguageSelector::loadLanguage(const QLocale::Language &newLanguage) { if (!mTranslator->load(QLocale(newLanguage), QLatin1String("quiz"), QLatin1String("."), QLatin1String(":/translations"))) { auto metaEnum = QMetaEnum::fromType<QLocale::Language>(); qDebug() << tr("load language %1 failed") .arg(metaEnum.valueToKey(newLanguage)); } else { qDebug() << mTranslator->filePath(); } }

As you can see QRingBuffer is created in another thread. Since this is used from your QTcpSocket (first backtrace) the only way is that it was created in the main thread.

@erico Update itself when/in response to what? You have to clarify what you are looking to do.

Hi, @sonichy you can add text on that by finding its child QAbstractButton and then add a widget to it as QLabel using the vertical layout as below. QAbstractButton* button = qFindChild< QAbstractButton* >(TableWidget); if (button) { QVBoxLayout* lay = new QVBoxLayout(button); lay->setContentsMargins(0, 0, 0, 0); QLabel* label = new QLabel("No"); label->setStyleSheet("QLabel {font-face: ArialMT; font-size: 10px; color: #FFFFFF; font-weight: bold; }""QToolTip { color: #ffffff; background-color: #000000; border: 1px #000000; }"); label->setAlignment(Qt::AlignCenter); label->setToolTip("Text"); label->setContentsMargins(2, 2, 2, 2); lay->addWidget(label); }

@VRonin , thank you, I will take a look now.

@SGaist of course! This OP gave up, as I'm about to do while this discussion gave me hope of handling mouse events in the view myself This discussion didn't really go anywhere at all

@Thombou Yes :)

Then please mark this topic as solved. Thx.

In that case you should consider the model view paradigm. Fetch your data, update the model(s) if needed and signal what has changed so the view(s) can update their content. You can use QDataWidgetMapper to automate that part.

@jsm_d You said that before. If you don't show what you've done, one can only guess what's happening. @jsm_d said in Scene selectedItems() not updated when setSelected(true): Is there a globla flag or somethig that only notifies the selectionchange when the selection is done with mouse?? There is no difference between selecting by code or with mouse. When using your mouse, there is only the mouse click event, that is happening before. But for the item, it's the same.

@SGaist It seems that (QRasterizer)[https://code.woboq.org/qt5/qtbase/src/gui/painting/qrasterizer.cpp.htm] is what I want. I used to doubt that QImage didn't use CPU but GPU(opengl) to render, but it seems not that way.