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Diffstat (limited to 'src/templates/qquickscrollbar.cpp')
| -rw-r--r-- | src/templates/qquickscrollbar.cpp | 532 |
1 files changed, 0 insertions, 532 deletions
diff --git a/src/templates/qquickscrollbar.cpp b/src/templates/qquickscrollbar.cpp deleted file mode 100644 index b3679bf8..00000000 --- a/src/templates/qquickscrollbar.cpp +++ /dev/null @@ -1,532 +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 "qquickscrollbar_p.h" -#include "qquickcontrol_p_p.h" - -#include <QtQuick/private/qquickflickable_p.h> -#include <QtQuick/private/qquickitemchangelistener_p.h> - -QT_BEGIN_NAMESPACE - -/*! - \qmltype ScrollBar - \inherits Control - \instantiates QQuickScrollBar - \inqmlmodule Qt.labs.controls - \ingroup qtlabscontrols-indicators - \brief An interactive scroll bar control. - - ScrollBar is an interactive bar that can be used to scroll to a specific - position. A scroll bar can be either \l vertical or \l horizontal, and can - be attached to any \l Flickable, such as \l ListView and \l GridView. - - \image qtlabscontrols-scrollbar.png - - \code - Flickable { - // ... - ScrollBar.vertical: ScrollBar { } - } - \endcode - - \note When ScrollBar is attached \l {ScrollBar::vertical}{vertically} or - \l {ScrollBar::horizontal}{horizontally} to a Flickable, its geometry and - the following properties are automatically set and updated as appropriate: - \list - \li \l orientation - \li \l position - \li \l size - \li \l active - \endlist - - \labs - - \sa ScrollIndicator, {Customizing ScrollBar}, {Indicator Controls} -*/ - -class QQuickScrollBarPrivate : public QQuickControlPrivate -{ -public: - QQuickScrollBarPrivate() : size(0), position(0), offset(0), - active(false), pressed(false), moving(false), - orientation(Qt::Vertical), handle(Q_NULLPTR) - { - } - - static QQuickScrollBarPrivate *get(QQuickScrollBar *bar) - { - return bar->d_func(); - } - - qreal size; - qreal position; - qreal offset; - bool active; - bool pressed; - bool moving; - Qt::Orientation orientation; - QQuickItem *handle; -}; - -QQuickScrollBar::QQuickScrollBar(QQuickItem *parent) : - QQuickControl(*(new QQuickScrollBarPrivate), parent) -{ - setKeepMouseGrab(true); - setAcceptedMouseButtons(Qt::LeftButton); -} - -QQuickScrollBarAttached *QQuickScrollBar::qmlAttachedProperties(QObject *object) -{ - QQuickFlickable *flickable = qobject_cast<QQuickFlickable *>(object); - if (flickable) - return new QQuickScrollBarAttached(flickable); - - qWarning() << "ScrollBar must be attached to a Flickable" << object; - return Q_NULLPTR; -} - -/*! - \qmlproperty real Qt.labs.controls::ScrollBar::size - - This property holds the size of the scroll bar, scaled to \c {0.0 - 1.0}. - - \sa {Flickable::visibleArea.heightRatio}{Flickable::visibleArea} -*/ -qreal QQuickScrollBar::size() const -{ - Q_D(const QQuickScrollBar); - return d->size; -} - -void QQuickScrollBar::setSize(qreal size) -{ - Q_D(QQuickScrollBar); - if (!qFuzzyCompare(d->size, size)) { - d->size = size; - emit sizeChanged(); - } -} - -/*! - \qmlproperty real Qt.labs.controls::ScrollBar::position - - This property holds the position of the scroll bar, scaled to \c {0.0 - 1.0}. - - \sa {Flickable::visibleArea.yPosition}{Flickable::visibleArea} -*/ -qreal QQuickScrollBar::position() const -{ - Q_D(const QQuickScrollBar); - return d->position; -} - -void QQuickScrollBar::setPosition(qreal position) -{ - Q_D(QQuickScrollBar); - if (!qFuzzyCompare(d->position, position)) { - d->position = position; - emit positionChanged(); - } -} - -/*! - \qmlproperty bool Qt.labs.controls::ScrollBar::active - - This property holds whether the scroll bar is active ie. when its \l pressed - or the attached Flickable is \l {Flickable::moving}{moving}. -*/ -bool QQuickScrollBar::isActive() const -{ - Q_D(const QQuickScrollBar); - return d->active; -} - -void QQuickScrollBar::setActive(bool active) -{ - Q_D(QQuickScrollBar); - if (d->active != active) { - d->active = active; - emit activeChanged(); - } -} - -/*! - \qmlproperty bool Qt.labs.controls::ScrollBar::pressed - - This property holds whether the scroll bar is pressed. -*/ -bool QQuickScrollBar::isPressed() const -{ - Q_D(const QQuickScrollBar); - return d->pressed; -} - -void QQuickScrollBar::setPressed(bool pressed) -{ - Q_D(QQuickScrollBar); - if (d->pressed != pressed) { - d->pressed = pressed; - setAccessibleProperty("pressed", pressed); - setActive(d->pressed || d->moving); - emit pressedChanged(); - } -} - -/*! - \qmlproperty enumeration Qt.labs.controls::ScrollBar::orientation - - This property holds the orientation of the scroll bar. - - Possible values: - \value Qt.Horizontal Horizontal - \value Qt.Vertical Vertical (default) -*/ -Qt::Orientation QQuickScrollBar::orientation() const -{ - Q_D(const QQuickScrollBar); - return d->orientation; -} - -void QQuickScrollBar::setOrientation(Qt::Orientation orientation) -{ - Q_D(QQuickScrollBar); - if (d->orientation != orientation) { - d->orientation = orientation; - emit orientationChanged(); - } -} - -/*! - \qmlproperty Item Qt.labs.controls::ScrollBar::handle - - This property holds the handle item. - - \sa {Customizing ScrollBar} -*/ -QQuickItem *QQuickScrollBar::handle() const -{ - Q_D(const QQuickScrollBar); - return d->handle; -} - -void QQuickScrollBar::setHandle(QQuickItem *handle) -{ - Q_D(QQuickScrollBar); - if (d->handle != handle) { - delete d->handle; - d->handle = handle; - if (handle && !handle->parentItem()) - handle->setParentItem(this); - emit handleChanged(); - } -} - -void QQuickScrollBar::mousePressEvent(QMouseEvent *event) -{ - Q_D(QQuickScrollBar); - QQuickControl::mousePressEvent(event); - d->offset = positionAt(event->pos()) - d->position; - if (d->offset < 0 || d->offset > d->size) - d->offset = d->size / 2; - setPressed(true); -} - -void QQuickScrollBar::mouseMoveEvent(QMouseEvent *event) -{ - Q_D(QQuickScrollBar); - QQuickControl::mouseMoveEvent(event); - setPosition(qBound<qreal>(0.0, positionAt(event->pos()) - d->offset, 1.0 - d->size)); -} - -void QQuickScrollBar::mouseReleaseEvent(QMouseEvent *event) -{ - Q_D(QQuickScrollBar); - QQuickControl::mouseReleaseEvent(event); - setPosition(qBound<qreal>(0.0, positionAt(event->pos()) - d->offset, 1.0 - d->size)); - d->offset = 0.0; - setPressed(false); -} - -qreal QQuickScrollBar::positionAt(const QPoint &point) const -{ - Q_D(const QQuickScrollBar); - if (d->orientation == Qt::Horizontal) - return (point.x() - leftPadding()) / availableWidth(); - else - return (point.y() - topPadding()) / availableHeight(); -} - -#ifndef QT_NO_ACCESSIBILITY -void QQuickScrollBar::accessibilityActiveChanged(bool active) -{ - QQuickControl::accessibilityActiveChanged(active); - - Q_D(QQuickScrollBar); - if (active) - setAccessibleProperty("pressed", d->pressed); -} - -QAccessible::Role QQuickScrollBar::accessibleRole() const -{ - return QAccessible::ScrollBar; -} -#endif - -class QQuickScrollBarAttachedPrivate : public QObjectPrivate, public QQuickItemChangeListener -{ -public: - QQuickScrollBarAttachedPrivate(QQuickFlickable *flickable) : flickable(flickable), horizontal(Q_NULLPTR), vertical(Q_NULLPTR) { } - - void activateHorizontal(); - void activateVertical(); - void scrollHorizontal(); - void scrollVertical(); - - void layoutHorizontal(bool move = true); - void layoutVertical(bool move = true); - - void itemGeometryChanged(QQuickItem *item, const QRectF &newGeometry, const QRectF &oldGeometry) Q_DECL_OVERRIDE; - - QQuickFlickable *flickable; - QQuickScrollBar *horizontal; - QQuickScrollBar *vertical; -}; - -void QQuickScrollBarAttachedPrivate::activateHorizontal() -{ - QQuickScrollBarPrivate *p = QQuickScrollBarPrivate::get(horizontal); - p->moving = flickable->isMovingHorizontally(); - horizontal->setActive(p->moving || p->pressed); -} - -void QQuickScrollBarAttachedPrivate::activateVertical() -{ - QQuickScrollBarPrivate *p = QQuickScrollBarPrivate::get(vertical); - p->moving = flickable->isMovingVertically(); - vertical->setActive(p->moving || p->pressed); -} - -// TODO: QQuickFlickable::maxXYExtent() -class QQuickFriendlyFlickable : public QQuickFlickable -{ - friend class QQuickScrollBarAttachedPrivate; -}; - -void QQuickScrollBarAttachedPrivate::scrollHorizontal() -{ - QQuickFriendlyFlickable *f = reinterpret_cast<QQuickFriendlyFlickable *>(flickable); - - const qreal viewwidth = f->width(); - const qreal maxxextent = -f->maxXExtent() + f->minXExtent(); - qreal cx = horizontal->position() * (maxxextent + viewwidth) - f->minXExtent(); - if (!qIsNaN(cx) && !qFuzzyCompare(cx, flickable->contentX())) - flickable->setContentX(cx); -} - -void QQuickScrollBarAttachedPrivate::scrollVertical() -{ - QQuickFriendlyFlickable *f = reinterpret_cast<QQuickFriendlyFlickable *>(flickable); - - const qreal viewheight = f->height(); - const qreal maxyextent = -f->maxYExtent() + f->minYExtent(); - qreal cy = vertical->position() * (maxyextent + viewheight) - f->minYExtent(); - if (!qIsNaN(cy) && !qFuzzyCompare(cy, flickable->contentY())) - flickable->setContentY(cy); -} - -void QQuickScrollBarAttachedPrivate::layoutHorizontal(bool move) -{ - Q_ASSERT(horizontal && flickable); - horizontal->setWidth(flickable->width()); - if (move) - horizontal->setY(flickable->height() - horizontal->height()); -} - -void QQuickScrollBarAttachedPrivate::layoutVertical(bool move) -{ - Q_ASSERT(vertical && flickable); - vertical->setHeight(flickable->height()); - if (move && !QQuickItemPrivate::get(vertical)->isMirrored()) - vertical->setX(flickable->width() - vertical->width()); -} - -void QQuickScrollBarAttachedPrivate::itemGeometryChanged(QQuickItem *item, const QRectF &newGeometry, const QRectF &oldGeometry) -{ - Q_UNUSED(item); - Q_UNUSED(newGeometry); - if (horizontal && horizontal->height() > 0) { - bool move = qFuzzyIsNull(horizontal->y()) || qFuzzyCompare(horizontal->y(), oldGeometry.height() - horizontal->height()); - layoutHorizontal(move); - } - if (vertical && vertical->width() > 0) { - bool move = qFuzzyIsNull(vertical->x()) || qFuzzyCompare(vertical->x(), oldGeometry.width() - vertical->width()); - layoutVertical(move); - } -} - -QQuickScrollBarAttached::QQuickScrollBarAttached(QQuickFlickable *flickable) : - QObject(*(new QQuickScrollBarAttachedPrivate(flickable)), flickable) -{ - Q_D(QQuickScrollBarAttached); - QQuickItemPrivate *p = QQuickItemPrivate::get(flickable); - p->updateOrAddGeometryChangeListener(d, QQuickItemPrivate::SizeChange); -} - -QQuickScrollBarAttached::~QQuickScrollBarAttached() -{ - Q_D(QQuickScrollBarAttached); - if (d->horizontal) - QQuickItemPrivate::get(d->horizontal)->removeItemChangeListener(d, QQuickItemPrivate::Geometry); - if (d->vertical) - QQuickItemPrivate::get(d->vertical)->removeItemChangeListener(d, QQuickItemPrivate::Geometry); -} - -/*! - \qmlattachedproperty ScrollBar Qt.labs.controls::ScrollBar::horizontal - - This property attaches a horizontal scroll bar to a \l Flickable. - - \code - Flickable { - contentWidth: 2000 - ScrollBar.horizontal: ScrollBar { } - } - \endcode -*/ -QQuickScrollBar *QQuickScrollBarAttached::horizontal() const -{ - Q_D(const QQuickScrollBarAttached); - return d->horizontal; -} - -void QQuickScrollBarAttached::setHorizontal(QQuickScrollBar *horizontal) -{ - Q_D(QQuickScrollBarAttached); - if (d->horizontal != horizontal) { - if (d->horizontal) { - QQuickItemPrivate::get(d->horizontal)->removeItemChangeListener(d, QQuickItemPrivate::Geometry); - QObjectPrivate::disconnect(d->horizontal, &QQuickScrollBar::positionChanged, d, &QQuickScrollBarAttachedPrivate::scrollHorizontal); - QObjectPrivate::disconnect(d->flickable, &QQuickFlickable::movingHorizontallyChanged, d, &QQuickScrollBarAttachedPrivate::activateHorizontal); - - // TODO: export QQuickFlickableVisibleArea - QObject *area = d->flickable->property("visibleArea").value<QObject *>(); - disconnect(area, SIGNAL(widthRatioChanged(qreal)), d->horizontal, SLOT(setSize(qreal))); - disconnect(area, SIGNAL(xPositionChanged(qreal)), d->horizontal, SLOT(setPosition(qreal))); - } - - d->horizontal = horizontal; - - if (horizontal) { - if (!horizontal->parentItem()) - horizontal->setParentItem(d->flickable); - horizontal->setOrientation(Qt::Horizontal); - - QQuickItemPrivate::get(horizontal)->updateOrAddGeometryChangeListener(d, QQuickItemPrivate::SizeChange); - QObjectPrivate::connect(horizontal, &QQuickScrollBar::positionChanged, d, &QQuickScrollBarAttachedPrivate::scrollHorizontal); - QObjectPrivate::connect(d->flickable, &QQuickFlickable::movingHorizontallyChanged, d, &QQuickScrollBarAttachedPrivate::activateHorizontal); - - // TODO: export QQuickFlickableVisibleArea - QObject *area = d->flickable->property("visibleArea").value<QObject *>(); - connect(area, SIGNAL(widthRatioChanged(qreal)), horizontal, SLOT(setSize(qreal))); - connect(area, SIGNAL(xPositionChanged(qreal)), horizontal, SLOT(setPosition(qreal))); - - d->layoutHorizontal(); - horizontal->setSize(area->property("widthRatio").toReal()); - horizontal->setPosition(area->property("xPosition").toReal()); - } - emit horizontalChanged(); - } -} - -/*! - \qmlattachedproperty ScrollBar Qt.labs.controls::ScrollBar::vertical - - This property attaches a vertical scroll bar to a \l Flickable. - - \code - Flickable { - contentHeight: 2000 - ScrollBar.vertical: ScrollBar { } - } - \endcode -*/ -QQuickScrollBar *QQuickScrollBarAttached::vertical() const -{ - Q_D(const QQuickScrollBarAttached); - return d->vertical; -} - -void QQuickScrollBarAttached::setVertical(QQuickScrollBar *vertical) -{ - Q_D(QQuickScrollBarAttached); - if (d->vertical != vertical) { - if (d->vertical) { - QQuickItemPrivate::get(d->vertical)->removeItemChangeListener(d, QQuickItemPrivate::Geometry); - QObjectPrivate::disconnect(d->vertical, &QQuickScrollBar::positionChanged, d, &QQuickScrollBarAttachedPrivate::scrollVertical); - QObjectPrivate::disconnect(d->flickable, &QQuickFlickable::movingVerticallyChanged, d, &QQuickScrollBarAttachedPrivate::activateVertical); - - // TODO: export QQuickFlickableVisibleArea - QObject *area = d->flickable->property("visibleArea").value<QObject *>(); - disconnect(area, SIGNAL(heightRatioChanged(qreal)), d->vertical, SLOT(setSize(qreal))); - disconnect(area, SIGNAL(yPositionChanged(qreal)), d->vertical, SLOT(setPosition(qreal))); - } - - d->vertical = vertical; - - if (vertical) { - if (!vertical->parentItem()) - vertical->setParentItem(d->flickable); - vertical->setOrientation(Qt::Vertical); - - QQuickItemPrivate::get(vertical)->updateOrAddGeometryChangeListener(d, QQuickItemPrivate::SizeChange); - QObjectPrivate::connect(vertical, &QQuickScrollBar::positionChanged, d, &QQuickScrollBarAttachedPrivate::scrollVertical); - QObjectPrivate::connect(d->flickable, &QQuickFlickable::movingVerticallyChanged, d, &QQuickScrollBarAttachedPrivate::activateVertical); - - // TODO: export QQuickFlickableVisibleArea - QObject *area = d->flickable->property("visibleArea").value<QObject *>(); - connect(area, SIGNAL(heightRatioChanged(qreal)), vertical, SLOT(setSize(qreal))); - connect(area, SIGNAL(yPositionChanged(qreal)), vertical, SLOT(setPosition(qreal))); - - d->layoutVertical(); - vertical->setSize(area->property("heightRatio").toReal()); - vertical->setPosition(area->property("yPosition").toReal()); - } - emit verticalChanged(); - } -} - -QT_END_NAMESPACE |