| /**************************************************************************** |
| ** |
| ** Copyright (C) 2017 The Qt Company Ltd. |
| ** Contact: http://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt Quick Controls 2 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 |
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| ** 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 "qquickmaterialprogressbar_p.h" |
| |
| #include <QtCore/qmath.h> |
| #include <QtCore/qeasingcurve.h> |
| #include <QtQuick/private/qquickitem_p.h> |
| #include <QtQuick/private/qsgadaptationlayer_p.h> |
| #include <QtQuick/qsgrectanglenode.h> |
| #include <QtQuick/qsgimagenode.h> |
| #include <QtQuick/qquickwindow.h> |
| #include <QtQuickControls2/private/qquickanimatednode_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| static const int PauseDuration = 520; |
| static const int SlideDuration = 1240; |
| static const int TotalDuration = SlideDuration + PauseDuration; |
| |
| class QQuickMaterialProgressBarNode : public QQuickAnimatedNode |
| { |
| public: |
| QQuickMaterialProgressBarNode(QQuickMaterialProgressBar *item); |
| |
| void updateCurrentTime(int time) override; |
| void sync(QQuickItem *item) override; |
| |
| private: |
| void moveNode(QSGTransformNode *node, const QRectF &geometry, qreal progress); |
| |
| bool m_indeterminate = false; |
| QEasingCurve m_easing = QEasingCurve::OutCubic; |
| }; |
| |
| QQuickMaterialProgressBarNode::QQuickMaterialProgressBarNode(QQuickMaterialProgressBar *item) |
| : QQuickAnimatedNode(item) |
| { |
| setLoopCount(Infinite); |
| setDuration(TotalDuration); |
| } |
| |
| void QQuickMaterialProgressBarNode::updateCurrentTime(int time) |
| { |
| QSGRectangleNode *geometryNode = static_cast<QSGRectangleNode *>(firstChild()); |
| Q_ASSERT(geometryNode->type() == QSGNode::GeometryNodeType); |
| const QRectF geometry = geometryNode->rect(); |
| |
| QSGTransformNode *firstNode = static_cast<QSGTransformNode *>(geometryNode->firstChild()); |
| if (firstNode) { |
| Q_ASSERT(firstNode->type() == QSGNode::TransformNodeType); |
| |
| const qreal progress = qMin<qreal>(1.0, static_cast<qreal>(time) / SlideDuration); |
| moveNode(static_cast<QSGTransformNode *>(firstNode), geometry, progress); |
| } |
| |
| QSGTransformNode *secondNode = static_cast<QSGTransformNode *>(geometryNode->lastChild()); |
| if (secondNode) { |
| Q_ASSERT(secondNode->type() == QSGNode::TransformNodeType); |
| |
| const qreal progress = qMax<qreal>(0.0, static_cast<qreal>(time - PauseDuration) / SlideDuration); |
| moveNode(static_cast<QSGTransformNode *>(secondNode), geometry, progress); |
| } |
| } |
| |
| void QQuickMaterialProgressBarNode::sync(QQuickItem *item) |
| { |
| QQuickMaterialProgressBar *bar = static_cast<QQuickMaterialProgressBar *>(item); |
| if (m_indeterminate != bar->isIndeterminate()) { |
| m_indeterminate = bar->isIndeterminate(); |
| if (m_indeterminate) |
| start(); |
| else |
| stop(); |
| } |
| |
| QQuickItemPrivate *d = QQuickItemPrivate::get(item); |
| |
| QRectF bounds = item->boundingRect(); |
| bounds.setHeight(item->implicitHeight()); |
| bounds.moveTop((item->height() - bounds.height()) / 2.0); |
| |
| QSGRectangleNode *geometryNode = static_cast<QSGRectangleNode *>(firstChild()); |
| if (!geometryNode) { |
| geometryNode = item->window()->createRectangleNode(); |
| geometryNode->setColor(Qt::transparent); |
| appendChildNode(geometryNode); |
| } |
| geometryNode->setRect(bounds); |
| |
| const int count = m_indeterminate ? 2 : 1; |
| const qreal w = m_indeterminate ? 0 : bar->progress() * item->width(); |
| const QRectF rect(0, bounds.y(), w, bounds.height()); |
| |
| QSGNode *transformNode = geometryNode->firstChild(); |
| for (int i = 0; i < count; ++i) { |
| if (!transformNode) { |
| transformNode = new QSGTransformNode; |
| geometryNode->appendChildNode(transformNode); |
| |
| QSGInternalRectangleNode *rectNode = d->sceneGraphContext()->createInternalRectangleNode(); |
| rectNode->setAntialiasing(true); |
| transformNode->appendChildNode(rectNode); |
| } |
| Q_ASSERT(transformNode->type() == QSGNode::TransformNodeType); |
| static_cast<QSGTransformNode *>(transformNode)->setMatrix(QMatrix4x4()); |
| |
| QSGInternalRectangleNode *rectNode = static_cast<QSGInternalRectangleNode *>(transformNode->firstChild()); |
| Q_ASSERT(rectNode->type() == QSGNode::GeometryNodeType); |
| |
| rectNode->setRect(rect); |
| rectNode->setColor(bar->color()); |
| rectNode->update(); |
| |
| transformNode = transformNode->nextSibling(); |
| } |
| |
| while (transformNode) { |
| QSGNode *nextSibling = transformNode->nextSibling(); |
| delete transformNode; |
| transformNode = nextSibling; |
| } |
| } |
| |
| void QQuickMaterialProgressBarNode::moveNode(QSGTransformNode *transformNode, const QRectF &geometry, qreal progress) |
| { |
| const qreal value = m_easing.valueForProgress(progress); |
| const qreal x = value * geometry.width(); |
| |
| QMatrix4x4 matrix; |
| matrix.translate(x, 0); |
| transformNode->setMatrix(matrix); |
| |
| QSGInternalRectangleNode *rectNode = static_cast<QSGInternalRectangleNode *>(transformNode->firstChild()); |
| Q_ASSERT(rectNode->type() == QSGNode::GeometryNodeType); |
| |
| QRectF r = geometry; |
| r.setWidth(value * (geometry.width() - x)); |
| rectNode->setRect(r); |
| rectNode->update(); |
| } |
| |
| QQuickMaterialProgressBar::QQuickMaterialProgressBar(QQuickItem *parent) |
| : QQuickItem(parent) |
| { |
| setFlag(ItemHasContents); |
| } |
| |
| QColor QQuickMaterialProgressBar::color() const |
| { |
| return m_color; |
| } |
| |
| void QQuickMaterialProgressBar::setColor(const QColor &color) |
| { |
| if (color == m_color) |
| return; |
| |
| m_color = color; |
| update(); |
| } |
| |
| qreal QQuickMaterialProgressBar::progress() const |
| { |
| return m_progress; |
| } |
| |
| void QQuickMaterialProgressBar::setProgress(qreal progress) |
| { |
| if (progress == m_progress) |
| return; |
| |
| m_progress = progress; |
| update(); |
| } |
| |
| bool QQuickMaterialProgressBar::isIndeterminate() const |
| { |
| return m_indeterminate; |
| } |
| |
| void QQuickMaterialProgressBar::setIndeterminate(bool indeterminate) |
| { |
| if (indeterminate == m_indeterminate) |
| return; |
| |
| m_indeterminate = indeterminate; |
| update(); |
| } |
| |
| void QQuickMaterialProgressBar::itemChange(QQuickItem::ItemChange change, const QQuickItem::ItemChangeData &data) |
| { |
| QQuickItem::itemChange(change, data); |
| if (change == ItemVisibleHasChanged) |
| update(); |
| } |
| |
| QSGNode *QQuickMaterialProgressBar::updatePaintNode(QSGNode *oldNode, QQuickItem::UpdatePaintNodeData *) |
| { |
| QQuickMaterialProgressBarNode *node = static_cast<QQuickMaterialProgressBarNode *>(oldNode); |
| if (isVisible() && width() > 0 && height() > 0) { |
| if (!node) |
| node = new QQuickMaterialProgressBarNode(this); |
| node->sync(this); |
| } else { |
| delete node; |
| node = nullptr; |
| } |
| return node; |
| } |
| |
| QT_END_NAMESPACE |