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Details

Type: Bug
Resolution: Done
Priority: P1: Critical
Fix Version/s: 5.15.0 Alpha
Affects Version/s: 5.9.4, 5.12.0
Component/s: Quick: Controls 2
Labels:
None

Commits:
80f1186338bcf8c7d692b4fadfc46531c002c6b0

Description

Using the code from the QtQuick Controls SpinBox styling example crashes when using Material or QQC2-desktop-style from KDE, seems to work fine with Universal style: https://doc.qt.io/qt-5/qtquickcontrols2-customize.html#customizing-spinbox

Run the following code in qmlscene (copied from the link above) using QT_QUICK_CONTROLS_STYLE=Material

import QtQuick 2.12
import QtQuick.Controls 2.12

SpinBox {
    id: control
    value: 50
    editable: true

    contentItem: TextInput {
        z: 2
        text: control.textFromValue(control.value, control.locale)

        font: control.font
        color: "#21be2b"
        selectionColor: "#21be2b"
        selectedTextColor: "#ffffff"
        horizontalAlignment: Qt.AlignHCenter
        verticalAlignment: Qt.AlignVCenter

        readOnly: !control.editable
        validator: control.validator
        inputMethodHints: Qt.ImhFormattedNumbersOnly
    }

    up.indicator: Rectangle {
        x: control.mirrored ? 0 : parent.width - width
        height: parent.height
        implicitWidth: 40
        implicitHeight: 40
        color: control.up.pressed ? "#e4e4e4" : "#f6f6f6"
        border.color: enabled ? "#21be2b" : "#bdbebf"

        Text {
            text: "+"
            font.pixelSize: control.font.pixelSize * 2
            color: "#21be2b"
            anchors.fill: parent
            fontSizeMode: Text.Fit
            horizontalAlignment: Text.AlignHCenter
            verticalAlignment: Text.AlignVCenter
        }
    }

    down.indicator: Rectangle {
        x: control.mirrored ? parent.width - width : 0
        height: parent.height
        implicitWidth: 40
        implicitHeight: 40
        color: control.down.pressed ? "#e4e4e4" : "#f6f6f6"
        border.color: enabled ? "#21be2b" : "#bdbebf"

        Text {
            text: "-"
            font.pixelSize: 10//control.font.pixelSize * 2
            color: "#21be2b"
            anchors.fill: parent
            fontSizeMode: Text.Fit
            horizontalAlignment: Text.AlignHCenter
            verticalAlignment: Text.AlignVCenter
        }
    }

    background: Rectangle {
        implicitWidth: 140
        border.color: "#bdbebf"
    }
}

Backtrace:

#6  0x00007f956ed94791 in QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f956ed6fcc3 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f956ed10329 in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f956d5e365f in QMetaObject::activate (sender=0x561b3ce27930, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3647
#10 0x00007f956f347551 in QQuickItem::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f956013f4bc in QQuickControl::geometryChanged(QRectF const&, QRectF const&) () from /usr/lib/x86_64-linux-gnu/libQt5QuickTemplates2.so.5
#12 0x00007f956f341e4d in QQuickItem::setImplicitHeight(double) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007f956f351f74 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f956ed976be in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#15 0x00007f956ed983f7 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f956ed94953 in QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#17 0x00007f956ed6fcc3 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#18 0x00007f956ed10329 in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#19 0x00007f956d5e365f in QMetaObject::activate (sender=0x561b3ce1dcb0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3647
#20 0x00007f956f348634 in QQuickItemPrivate::implicitHeightChanged() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x00007f956f341d8e in QQuickItem::setImplicitHeight(double) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x00007f956f3bc004 in QQuickTextInputPrivate::updateLayout() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#23 0x00007f956f3bd722 in QQuickTextInput::componentComplete() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#24 0x00007f956eda2173 in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#25 0x00007f956ed24421 in QQmlComponentPrivate::complete(QQmlEnginePrivate*, QQmlComponentPrivate::ConstructionState*) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#26 0x00007f956ed244d7 in QQmlComponentPrivate::completeDeferred(QQmlEnginePrivate*, QQmlComponentPrivate::DeferredState*) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#27 0x00007f956013f902 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5QuickTemplates2.so.5
#28 0x00007f956013790b in QQuickControlPrivate::executeContentItem(bool) () from /usr/lib/x86_64-linux-gnu/libQt5QuickTemplates2.so.5
#29 0x00007f956013f1e1 in QQuickControl::componentComplete() () from /usr/lib/x86_64-linux-gnu/libQt5QuickTemplates2.so.5
#30 0x00007f956017577f in QQuickSpinBox::componentComplete() () from /usr/lib/x86_64-linux-gnu/libQt5QuickTemplates2.so.5
#31 0x00007f956eda2173 in QQmlObjectCreator::finalize(QQmlInstantiationInterrupt&) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#32 0x00007f956ed24421 in QQmlComponentPrivate::complete(QQmlEnginePrivate*, QQmlComponentPrivate::ConstructionState*) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#33 0x00007f956ed24532 in QQmlComponentPrivate::completeCreate() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#34 0x00007f956ed24312 in QQmlComponent::create(QQmlContext*) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5