[SOLVED] mousePressEvent in QtQuickView
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wrote on 10 Apr 2020, 16:59 last edited by
main.qml:
import QtQuick 2.12 import QtQuick.Window 2.12 import QuickTypes 1.0 MouseItem { visible: true width: 640 height: 480 title: qsTr("Mouse Item test") }
main.cpp:
#include <QGuiApplication> #include <QQmlApplicationEngine> #include <mouseitem.h> int main(int argc, char *argv[]) { QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling); QGuiApplication app(argc, argv); qmlRegisterType<MouseItem>("QuickTypes",1,0,"MouseItem"); QQmlApplicationEngine engine; const QUrl url(QStringLiteral("qrc:/main.qml")); QObject::connect(&engine, &QQmlApplicationEngine::objectCreated, &app, [url](QObject *obj, const QUrl &objUrl) { if (!obj && url == objUrl) QCoreApplication::exit(-1); }, Qt::QueuedConnection); engine.load(url); return app.exec(); }
mouseitem.h:
#ifndef MOUSEITEM_H #define MOUSEITEM_H #include <QQuickView> class MouseItem : public QQuickView { Q_OBJECT public: MouseItem(); protected: void mousePressEvent(QMouseEvent *e) override; }; #endif // MOUSEITEM_H
mouseitem.cpp:
#include "mouseitem.h" #include <QDebug> MouseItem::MouseItem() : QQuickView() { } void MouseItem::mousePressEvent(QMouseEvent *e) { // qApp->sendEvent(mWindow, e); qDebug() << "mousePressEvent"; if (!e->isAccepted()) { qDebug("Hello"); QQuickView::mousePressEvent(e); } }
I see the text "mousePressEvent", but I don't see the hello. So the events are happening.
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wrote on 10 Apr 2020, 18:20 last edited by
TBH, I did your method without
!e->isAccepted()
too, it didn't work
now it works now, evenvoid MouseItem::mousePressEvent(QMouseEvent *e) { qDebug() << "mousePressEvent"; qDebug("mousePressEvent"); }
don't understand
but there is another problem that it works, and print the message when click on the window, but it freezes the qml controllers
this is weird.
will test other events and will leave comment if there is any problem -
wrote on 10 Apr 2020, 20:36 last edited by
freezes the qml controllers
It might be eating all the events. setAccepted to false will be like you didnt handle the event, I think.
Also, I don't know if you are supposed to embed an Windows in an Item. -
wrote on 13 Apr 2020, 17:18 last edited by
it does not reach to that point to check the setAccepted, it does not call mousePressEvent (or any other events) at all
when you use aQ*Window
(object) inside aQQuickItem
How can we check this? that item will disable window events or not?
any idea? -
wrote on 14 Apr 2020, 01:59 last edited by
This is the more specific question about the
mousePressEvent
problem
https://forum.qt.io/topic/113640/why-q-window-events-are-eaten-by-qml-item -
wrote on 14 Apr 2020, 14:13 last edited by
Have you tried doing your opengl in a qtquickitem? I wonder if the problem is trying to embed a top level window inside a a qml item.
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wrote on 14 Apr 2020, 15:28 last edited by
I did, it works fine and show window contents (3D OpenGL) inside the Item, just I found we should enable mouse accepting, I'm still testing.
will update the postthanks
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wrote on 15 Apr 2020, 18:43 last edited by
The problem is solved
please check this
https://forum.qt.io/topic/113640/solved-why-q-window-events-are-eaten-by-qml-itemthanks
13/13