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Diffstat (limited to 'src/templates/qquickslider.cpp')
| -rw-r--r-- | src/templates/qquickslider.cpp | 588 |
1 files changed, 0 insertions, 588 deletions
diff --git a/src/templates/qquickslider.cpp b/src/templates/qquickslider.cpp deleted file mode 100644 index fac8fb50..00000000 --- a/src/templates/qquickslider.cpp +++ /dev/null @@ -1,588 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2015 The Qt Company Ltd. -** Contact: http://www.qt.io/licensing/ -** -** This file is part of the Qt Labs Templates module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL3$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see http://www.qt.io/terms-conditions. For further -** information use the contact form at http://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPLv3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or later as published by the Free -** Software Foundation and appearing in the file LICENSE.GPL included in -** the packaging of this file. Please review the following information to -** ensure the GNU General Public License version 2.0 requirements will be -** met: http://www.gnu.org/licenses/gpl-2.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qquickslider_p.h" -#include "qquickcontrol_p_p.h" - -#include <QtQuick/private/qquickwindow_p.h> - -QT_BEGIN_NAMESPACE - -/*! - \qmltype Slider - \inherits Control - \instantiates QQuickSlider - \inqmlmodule Qt.labs.controls - \ingroup qtlabscontrols-input - \brief A slider control. - - \image qtlabscontrols-slider.gif - - Slider is used to select a value by sliding a handle along a track. - - \table - \row \li \image qtlabscontrols-slider-normal.png - \li A slider in its normal state. - \row \li \image qtlabscontrols-slider-focused.png - \li A slider that has active focus. - \row \li \image qtlabscontrols-slider-disabled.png - \li A slider that is disabled. - \endtable - - \code - Slider { - value: 0.5 - } - \endcode - - \labs - - \sa {Customizing Slider}, {Input Controls} -*/ - -class QQuickSliderPrivate : public QQuickControlPrivate -{ - Q_DECLARE_PUBLIC(QQuickSlider) - -public: - QQuickSliderPrivate() : from(0), to(1), value(0), position(0), stepSize(0), pressed(false), - orientation(Qt::Horizontal), snapMode(QQuickSlider::NoSnap), - handle(Q_NULLPTR), track(Q_NULLPTR) - { - } - - qreal valueAt(qreal position) const; - qreal snapPosition(qreal position) const; - qreal positionAt(const QPoint &point) const; - void setPosition(qreal position); - void updatePosition(); - - qreal from; - qreal to; - qreal value; - qreal position; - qreal stepSize; - bool pressed; - QPoint pressPoint; - Qt::Orientation orientation; - QQuickSlider::SnapMode snapMode; - QQuickItem *handle; - QQuickItem *track; -}; - -qreal QQuickSliderPrivate::valueAt(qreal position) const -{ - return from + (to - from) * position; -} - -qreal QQuickSliderPrivate::snapPosition(qreal position) const -{ - const qreal range = from + (to - from); - if (qFuzzyIsNull(range)) - return position; - - const qreal effectiveStep = stepSize / range; - if (qFuzzyIsNull(effectiveStep)) - return position; - - return qRound(position / effectiveStep) * effectiveStep; -} - -qreal QQuickSliderPrivate::positionAt(const QPoint &point) const -{ - Q_Q(const QQuickSlider); - if (orientation == Qt::Horizontal) { - const qreal hw = handle ? handle->width() : 0; - const qreal offset = hw / 2; - const qreal extent = q->availableWidth() - hw; - if (!qFuzzyIsNull(extent)) { - if (q->isMirrored()) - return (q->width() - point.x() - q->rightPadding() - offset) / extent; - return (point.x() - q->leftPadding() - offset) / extent; - } - } else { - const qreal hh = handle ? handle->height() : 0; - const qreal offset = hh / 2; - const qreal extent = q->availableHeight() - hh; - if (!qFuzzyIsNull(extent)) - return (q->height() - point.y() - q->bottomPadding() - offset) / extent; - } - return 0; -} - -void QQuickSliderPrivate::setPosition(qreal pos) -{ - Q_Q(QQuickSlider); - pos = qBound<qreal>(0.0, pos, 1.0); - if (!qFuzzyCompare(position, pos)) { - position = pos; - emit q->positionChanged(); - emit q->visualPositionChanged(); - } -} - -void QQuickSliderPrivate::updatePosition() -{ - qreal pos = 0; - if (!qFuzzyCompare(from, to)) - pos = (value - from) / (to - from); - setPosition(pos); -} - -QQuickSlider::QQuickSlider(QQuickItem *parent) : - QQuickControl(*(new QQuickSliderPrivate), parent) -{ - setActiveFocusOnTab(true); - setAcceptedMouseButtons(Qt::LeftButton); -} - -/*! - \qmlproperty real Qt.labs.controls::Slider::from - - This property holds the starting value for the range. The default value is \c 0.0. - - \sa to, value -*/ -qreal QQuickSlider::from() const -{ - Q_D(const QQuickSlider); - return d->from; -} - -void QQuickSlider::setFrom(qreal from) -{ - Q_D(QQuickSlider); - if (!qFuzzyCompare(d->from, from)) { - d->from = from; - emit fromChanged(); - if (isComponentComplete()) { - setValue(d->value); - d->updatePosition(); - } - } -} - -/*! - \qmlproperty real Qt.labs.controls::Slider::to - - This property holds the end value for the range. The default value is \c 1.0. - - \sa from, value -*/ -qreal QQuickSlider::to() const -{ - Q_D(const QQuickSlider); - return d->to; -} - -void QQuickSlider::setTo(qreal to) -{ - Q_D(QQuickSlider); - if (!qFuzzyCompare(d->to, to)) { - d->to = to; - emit toChanged(); - if (isComponentComplete()) { - setValue(d->value); - d->updatePosition(); - } - } -} - -/*! - \qmlproperty real Qt.labs.controls::Slider::value - - This property holds the value in the range \c from - \c to. The default value is \c 0.0. - - Unlike the \l position property, the \c value is not updated while the - handle is dragged. The value is updated after the value has been chosen - and the slider has been released. - - \sa position -*/ -qreal QQuickSlider::value() const -{ - Q_D(const QQuickSlider); - return d->value; -} - -void QQuickSlider::setValue(qreal value) -{ - Q_D(QQuickSlider); - if (isComponentComplete()) - value = d->from > d->to ? qBound(d->to, value, d->from) : qBound(d->from, value, d->to); - - if (!qFuzzyCompare(d->value, value)) { - d->value = value; - d->updatePosition(); - emit valueChanged(); - } -} - -/*! - \qmlproperty real Qt.labs.controls::Slider::position - \readonly - - This property holds the logical position of the handle. - - The position is defined as a percentage of the control's size, scaled - to \c {0.0 - 1.0}. Unlike the \l value property, the \c position is - continuously updated while the handle is dragged. For visualizing a - slider, the right-to-left aware \l visualPosition should be used instead. - - \sa value, visualPosition -*/ -qreal QQuickSlider::position() const -{ - Q_D(const QQuickSlider); - return d->position; -} - -/*! - \qmlproperty real Qt.labs.controls::Slider::visualPosition - \readonly - - This property holds the visual position of the handle. - - The position is defined as a percentage of the control's size, scaled to - \c {0.0 - 1.0}. When the control is \l {Control::mirrored}{mirrored}, the - value is equal to \c {1.0 - position}. This makes the value suitable for - visualizing the slider, taking right-to-left support into account. - - \sa position -*/ -qreal QQuickSlider::visualPosition() const -{ - Q_D(const QQuickSlider); - if (d->orientation == Qt::Vertical || isMirrored()) - return 1.0 - d->position; - return d->position; -} - -/*! - \qmlproperty real Qt.labs.controls::Slider::stepSize - - This property holds the step size. The default value is \c 0.0. - - \sa snapMode, increase(), decrease() -*/ -qreal QQuickSlider::stepSize() const -{ - Q_D(const QQuickSlider); - return d->stepSize; -} - -void QQuickSlider::setStepSize(qreal step) -{ - Q_D(QQuickSlider); - if (!qFuzzyCompare(d->stepSize, step)) { - d->stepSize = step; - emit stepSizeChanged(); - } -} - -/*! - \qmlproperty enumeration Qt.labs.controls::Slider::snapMode - - This property holds the snap mode. - - Possible values: - \value Slider.NoSnap The slider does not snap (default). - \value Slider.SnapAlways The slider snaps while the handle is dragged. - \value Slider.SnapOnRelease The slider does not snap while being dragged, but only after the handle is released. - - \sa stepSize -*/ -QQuickSlider::SnapMode QQuickSlider::snapMode() const -{ - Q_D(const QQuickSlider); - return d->snapMode; -} - -void QQuickSlider::setSnapMode(SnapMode mode) -{ - Q_D(QQuickSlider); - if (d->snapMode != mode) { - d->snapMode = mode; - emit snapModeChanged(); - } -} - -/*! - \qmlproperty bool Qt.labs.controls::Slider::pressed - - This property holds whether the slider is pressed. -*/ -bool QQuickSlider::isPressed() const -{ - Q_D(const QQuickSlider); - return d->pressed; -} - -void QQuickSlider::setPressed(bool pressed) -{ - Q_D(QQuickSlider); - if (d->pressed != pressed) { - d->pressed = pressed; - setAccessibleProperty("pressed", pressed); - emit pressedChanged(); - } -} - -/*! - \qmlproperty enumeration Qt.labs.controls::Slider::orientation - - This property holds the orientation. - - Possible values: - \value Qt.Horizontal Horizontal (default) - \value Qt.Vertical Vertical -*/ -Qt::Orientation QQuickSlider::orientation() const -{ - Q_D(const QQuickSlider); - return d->orientation; -} - -void QQuickSlider::setOrientation(Qt::Orientation orientation) -{ - Q_D(QQuickSlider); - if (d->orientation != orientation) { - d->orientation = orientation; - emit orientationChanged(); - } -} - -/*! - \qmlproperty Item Qt.labs.controls::Slider::handle - - This property holds the handle item. - - \sa {Customizing Slider} -*/ -QQuickItem *QQuickSlider::handle() const -{ - Q_D(const QQuickSlider); - return d->handle; -} - -void QQuickSlider::setHandle(QQuickItem *handle) -{ - Q_D(QQuickSlider); - if (d->handle != handle) { - delete d->handle; - d->handle = handle; - if (handle && !handle->parentItem()) - handle->setParentItem(this); - emit handleChanged(); - } -} - -/*! - \qmlproperty Item Qt.labs.controls::Slider::track - - This property holds the track item. - - \sa {Customizing Slider} -*/ -QQuickItem *QQuickSlider::track() const -{ - Q_D(const QQuickSlider); - return d->track; -} - -void QQuickSlider::setTrack(QQuickItem *track) -{ - Q_D(QQuickSlider); - if (d->track != track) { - delete d->track; - d->track = track; - if (track && !track->parentItem()) - track->setParentItem(this); - emit trackChanged(); - } -} - -/*! - \qmlmethod void Qt.labs.controls::Slider::increase() - - Increases the value by \l stepSize or \c 0.1 if stepSize is not defined. - - \sa stepSize -*/ -void QQuickSlider::increase() -{ - Q_D(QQuickSlider); - qreal step = qFuzzyIsNull(d->stepSize) ? 0.1 : d->stepSize; - setValue(d->value + step); -} - -/*! - \qmlmethod void Qt.labs.controls::Slider::decrease() - - Decreases the value by \l stepSize or \c 0.1 if stepSize is not defined. - - \sa stepSize -*/ -void QQuickSlider::decrease() -{ - Q_D(QQuickSlider); - qreal step = qFuzzyIsNull(d->stepSize) ? 0.1 : d->stepSize; - setValue(d->value - step); -} - -void QQuickSlider::keyPressEvent(QKeyEvent *event) -{ - Q_D(QQuickSlider); - QQuickControl::keyPressEvent(event); - if (d->orientation == Qt::Horizontal) { - if (event->key() == Qt::Key_Left) { - setPressed(true); - if (isMirrored()) - increase(); - else - decrease(); - event->accept(); - } else if (event->key() == Qt::Key_Right) { - setPressed(true); - if (isMirrored()) - decrease(); - else - increase(); - event->accept(); - } - } else { - if (event->key() == Qt::Key_Up) { - setPressed(true); - increase(); - event->accept(); - } else if (event->key() == Qt::Key_Down) { - setPressed(true); - decrease(); - event->accept(); - } - } -} - -void QQuickSlider::keyReleaseEvent(QKeyEvent *event) -{ - QQuickControl::keyReleaseEvent(event); - setPressed(false); -} - -void QQuickSlider::mousePressEvent(QMouseEvent *event) -{ - Q_D(QQuickSlider); - QQuickControl::mousePressEvent(event); - d->pressPoint = event->pos(); - setPressed(true); -} - -void QQuickSlider::mouseMoveEvent(QMouseEvent *event) -{ - Q_D(QQuickSlider); - QQuickControl::mouseMoveEvent(event); - if (!keepMouseGrab()) { - if (d->orientation == Qt::Horizontal) - setKeepMouseGrab(QQuickWindowPrivate::dragOverThreshold(event->pos().x() - d->pressPoint.x(), Qt::XAxis, event)); - else - setKeepMouseGrab(QQuickWindowPrivate::dragOverThreshold(event->pos().y() - d->pressPoint.y(), Qt::YAxis, event)); - } - if (keepMouseGrab()) { - qreal pos = d->positionAt(event->pos()); - if (d->snapMode == SnapAlways) - pos = d->snapPosition(pos); - d->setPosition(pos); - } -} - -void QQuickSlider::mouseReleaseEvent(QMouseEvent *event) -{ - Q_D(QQuickSlider); - QQuickControl::mouseReleaseEvent(event); - d->pressPoint = QPoint(); - if (keepMouseGrab()) { - qreal pos = d->positionAt(event->pos()); - if (d->snapMode != NoSnap) - pos = d->snapPosition(pos); - qreal val = d->valueAt(pos); - if (!qFuzzyCompare(val, d->value)) - setValue(val); - else if (d->snapMode != NoSnap) - d->setPosition(pos); - setKeepMouseGrab(false); - } - setPressed(false); -} - -void QQuickSlider::mouseUngrabEvent() -{ - Q_D(QQuickSlider); - QQuickControl::mouseUngrabEvent(); - d->pressPoint = QPoint(); - setPressed(false); -} - -void QQuickSlider::mirrorChange() -{ - QQuickControl::mirrorChange(); - emit visualPositionChanged(); -} - -void QQuickSlider::componentComplete() -{ - Q_D(QQuickSlider); - QQuickControl::componentComplete(); - setValue(d->value); - d->updatePosition(); -} - -#ifndef QT_NO_ACCESSIBILITY -void QQuickSlider::accessibilityActiveChanged(bool active) -{ - QQuickControl::accessibilityActiveChanged(active); - - Q_D(QQuickSlider); - if (active) - setAccessibleProperty("pressed", d->pressed); -} - -QAccessible::Role QQuickSlider::accessibleRole() const -{ - return QAccessible::Slider; -} -#endif - -QT_END_NAMESPACE |