[Interest] QDialog hangs in constructor when QQuickWidget added to frame layout ?

Edward Sutton edward.sutton at subsite.com
Thu Jan 7 23:23:53 CET 2016


I am trying to mix QML in a widgets app by dynamically loading a dialog’s QML source into a QuickWidget.


  1.  I have a QDialog with a QFrame.
  2.  In the QDialog constructor, I load the QML form a resource into a QQuickWidget.
  3.  When I add the QQuickWidget to the QFrame my app hangs at this line in the debugger.

Should this work?

-Ed

///////////////////////////////////////////////////// MainWindow



void MainWindow::on_pushButtonAdd_clicked()

{

    DialogPicker dialogPicker(this);

    dialogPicker.exec();

}

///////////////////////////////////////////////////// DialogPicker


#include <QQmlProperty>

#include <QQuickItem>

#include <QQuickView>


#include <QQuickWidget>

#include <QQmlError>

#include <QtWidgets>


#include "dialogpicker.h"

#include "ui_dialogpicker.h"


DialogPicker::DialogPicker(QWidget *parent) :

    QDialog(parent),

    ui(new Ui::DialogPicker)

    ,m_quickWidget(new QQuickWidget(this))

{

    ui->setupUi(this);


    m_quickWidget->setResizeMode(QQuickWidget::SizeRootObjectToView );

    m_quickWidget->setSource(QUrl("qrc:/res/files/picklist.qml"));

    ui->frameQmlHost->layout()->addWidget(m_quickWidget);           <- **** App hangs here ????


}


///// QML picklist.qml


import QtQuick 2.2


Item {

    Text {

        text: "Qt Quick Text"

        font.pixelSize: 32

        anchors.centerIn: parent

    }

}



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