diff options
Diffstat (limited to 'src/quicktemplates2/qquickslider.cpp')
-rw-r--r-- | src/quicktemplates2/qquickslider.cpp | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/src/quicktemplates2/qquickslider.cpp b/src/quicktemplates2/qquickslider.cpp index b358663d..21aeda39 100644 --- a/src/quicktemplates2/qquickslider.cpp +++ b/src/quicktemplates2/qquickslider.cpp @@ -36,6 +36,7 @@ #include "qquickslider_p.h" #include "qquickcontrol_p_p.h" +#include "qquickdeferredexecute_p_p.h" #include <QtQuick/private/qquickwindow_p.h> @@ -112,6 +113,8 @@ public: void handleRelease(const QPointF &point) override; void handleUngrab() override; + void executeHandle(bool complete = false); + qreal from; qreal to; qreal value; @@ -122,7 +125,7 @@ public: QPointF pressPoint; Qt::Orientation orientation; QQuickSlider::SnapMode snapMode; - QQuickItem *handle; + QQuickDeferredPointer<QQuickItem> handle; }; qreal QQuickSliderPrivate::snapPosition(qreal position) const @@ -235,6 +238,20 @@ void QQuickSliderPrivate::handleUngrab() q->setPressed(false); } +static inline QString handleName() { return QStringLiteral("handle"); } + +void QQuickSliderPrivate::executeHandle(bool complete) +{ + Q_Q(QQuickSlider); + if (handle.wasExecuted()) + return; + + if (!handle) + quickBeginDeferred(q, handleName(), handle); + if (complete) + quickCompleteDeferred(q, handleName(), handle); +} + QQuickSlider::QQuickSlider(QQuickItem *parent) : QQuickControl(*(new QQuickSliderPrivate), parent) { @@ -517,7 +534,9 @@ void QQuickSlider::setOrientation(Qt::Orientation orientation) */ QQuickItem *QQuickSlider::handle() const { - Q_D(const QQuickSlider); + QQuickSliderPrivate *d = const_cast<QQuickSliderPrivate *>(d_func()); + if (!d->handle) + d->executeHandle(); return d->handle; } @@ -527,11 +546,12 @@ void QQuickSlider::setHandle(QQuickItem *handle) if (d->handle == handle) return; - QQuickControlPrivate::destroyDelegate(d->handle, this); + delete d->handle; d->handle = handle; if (handle && !handle->parentItem()) handle->setParentItem(this); - emit handleChanged(); + if (!d->handle.isExecuting()) + emit handleChanged(); } /*! @@ -736,6 +756,7 @@ void QQuickSlider::mirrorChange() void QQuickSlider::componentComplete() { Q_D(QQuickSlider); + d->executeHandle(true); QQuickControl::componentComplete(); setValue(d->value); d->updatePosition(); |