qquickdesignersupportstates.cpp

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#include "qquickdesignersupportstates_p.h"
 
#include <private/qquickstategroup_p.h>
#include <private/qquickpropertychanges_p.h>
 
QT_BEGIN_NAMESPACE
 
bool QQuickDesignerSupportStates::isStateActive(QObject *object, QQmlContext *context)
{
    QQuickState *stateObject  = qobject_cast<QQuickState*>(object);
 
    if (!stateObject)
        return false;
 
    QQuickStateGroup *stateGroup = stateObject->stateGroup();
 
    QQmlProperty property(object, QLatin1String("name"), context);
 
    return stateObject && stateGroup && stateGroup->state() == property.read();
}
 
void QQuickDesignerSupportStates::activateState(QObject *object, QQmlContext *context)
{
    QQuickState *stateObject  = qobject_cast<QQuickState*>(object);
 
    if (!stateObject)
        return;
 
    QQuickStateGroup *stateGroup = stateObject->stateGroup();
 
    QQmlProperty property(object, QLatin1String("name"), context);
 
    stateGroup->setState(property.read().toString());
}
 
void QQuickDesignerSupportStates::deactivateState(QObject *object)
{
    QQuickState *stateObject  = qobject_cast<QQuickState*>(object);
 
    if (!stateObject)
        return;
 
    QQuickStateGroup *stateGroup = stateObject->stateGroup();
 
    if (stateGroup)
        stateGroup->setState(QString());
}
 
bool QQuickDesignerSupportStates::changeValueInRevertList(QObject *state, QObject *target,
                                                    const QQuickDesignerSupport::PropertyName &propertyName,
                                                    const QVariant &value)
{
    QQuickState *stateObject  = qobject_cast<QQuickState*>(state);
 
    if (!stateObject)
        return false;
 
    return stateObject->changeValueInRevertList(target, QString::fromUtf8(propertyName), value);
}
 
bool QQuickDesignerSupportStates::updateStateBinding(QObject *state, QObject *target,
                                               const QQuickDesignerSupport::PropertyName &propertyName,
                                               const QString &expression)
{
    QQuickState *stateObject  = qobject_cast<QQuickState*>(state);
 
    if (!stateObject)
        return false;
 
    return stateObject->changeValueInRevertList(target, QString::fromUtf8(propertyName), expression);
}
 
bool QQuickDesignerSupportStates::resetStateProperty(QObject *state, QObject *target,
                                               const QQuickDesignerSupport::PropertyName &propertyName,
                                               const QVariant & /* resetValue */)
{
    QQuickState *stateObject  = qobject_cast<QQuickState*>(state);
 
    if (!stateObject)
        return false;
 
    return stateObject->removeEntryFromRevertList(target, QString::fromUtf8(propertyName));
}
 
QT_END_NAMESPACE