| 1 | // Copyright (C) 2017 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | #include "qquickdragaxis_p.h" |
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| 4 | #include "qquickpointerhandler_p.h" |
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| 5 | #include <QtQuick/qquickitem.h> |
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| 6 | #include <limits> |
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| 7 | |
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| 8 | QT_BEGIN_NAMESPACE |
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| 9 | |
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| 10 | Q_LOGGING_CATEGORY(lcDragAxis, "qt.quick.pointer.dragaxis" ) |
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| 11 | |
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| 12 | QQuickDragAxis::QQuickDragAxis(QQuickPointerHandler *handler, const QString &propertyName, qreal initValue) |
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| 13 | : QObject(handler), m_accumulatedValue(initValue), m_propertyName(propertyName) |
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| 14 | { |
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| 15 | } |
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| 16 | |
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| 17 | void QQuickDragAxis::setMinimum(qreal minimum) |
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| 18 | { |
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| 19 | if (m_minimum == minimum) |
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| 20 | return; |
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| 21 | |
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| 22 | m_minimum = minimum; |
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| 23 | emit minimumChanged(); |
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| 24 | } |
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| 25 | |
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| 26 | void QQuickDragAxis::setMaximum(qreal maximum) |
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| 27 | { |
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| 28 | if (m_maximum == maximum) |
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| 29 | return; |
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| 30 | |
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| 31 | m_maximum = maximum; |
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| 32 | emit maximumChanged(); |
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| 33 | } |
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| 34 | |
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| 35 | void QQuickDragAxis::setEnabled(bool enabled) |
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| 36 | { |
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| 37 | if (m_enabled == enabled) |
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| 38 | return; |
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| 39 | |
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| 40 | m_enabled = enabled; |
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| 41 | emit enabledChanged(); |
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| 42 | } |
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| 43 | |
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| 44 | void QQuickDragAxis::onActiveChanged(bool active, qreal initActiveValue) |
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| 45 | { |
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| 46 | m_activeValue = initActiveValue; |
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| 47 | m_startValue = m_accumulatedValue; |
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| 48 | qCDebug(lcDragAxis) << parent() << m_propertyName << active << ": init active" << m_activeValue |
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| 49 | << "target start" << m_startValue; |
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| 50 | } |
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| 51 | |
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| 52 | void QQuickDragAxis::updateValue(qreal activeValue, qreal accumulatedValue, qreal delta) |
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| 53 | { |
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| 54 | if (!m_enabled) |
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| 55 | return; |
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| 56 | |
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| 57 | m_activeValue = activeValue; |
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| 58 | m_accumulatedValue = qBound(min: m_minimum, val: accumulatedValue, max: m_maximum); |
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| 59 | qCDebug(lcDragAxis) << parent() << m_propertyName << "values: active" << activeValue |
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| 60 | << "accumulated" << m_accumulatedValue << "delta" << delta; |
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| 61 | emit activeValueChanged(delta); |
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| 62 | } |
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| 63 | |
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| 64 | QT_END_NAMESPACE |
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| 65 | |
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| 66 | #include "moc_qquickdragaxis_p.cpp" |
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| 67 | |
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