diff options
Diffstat (limited to 'src/quickcontrols2/material/impl/qquickmaterialbusyindicator.cpp')
| -rw-r--r-- | src/quickcontrols2/material/impl/qquickmaterialbusyindicator.cpp | 245 |
1 files changed, 0 insertions, 245 deletions
diff --git a/src/quickcontrols2/material/impl/qquickmaterialbusyindicator.cpp b/src/quickcontrols2/material/impl/qquickmaterialbusyindicator.cpp deleted file mode 100644 index 10bcc035..00000000 --- a/src/quickcontrols2/material/impl/qquickmaterialbusyindicator.cpp +++ /dev/null @@ -1,245 +0,0 @@ -/**************************************************************************** -** -** 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 -** 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 "qquickmaterialbusyindicator_p.h" - -#include <QtCore/qmath.h> -#include <QtCore/qeasingcurve.h> -#include <QtGui/qpainter.h> -#include <QtQuick/qsgimagenode.h> -#include <QtQuick/qquickwindow.h> -#include <QtQuickControls2Impl/private/qquickanimatednode_p.h> - -QT_BEGIN_NAMESPACE - -/* - Relevant Android code: - - - core/res/res/anim/progress_indeterminate_rotation_material.xml contains - the rotation animation data. - - core/res/res/anim/progress_indeterminate_material.xml contains the trim - animation data. - - core/res/res/interpolator/trim_start_interpolator.xml and - core/res/res/interpolator/trim_end_interpolator.xml contain the start - and end trim path interpolators. - - addCommand() in core/java/android/util/PathParser.java has a list of the - different path commands available. -*/ - -static const int SpanAnimationDuration = 700; -static const int RotationAnimationDuration = SpanAnimationDuration * 6; -static const int TargetRotation = 720; -static const int OneDegree = 16; -static const qreal MinSweepSpan = 10 * OneDegree; -static const qreal MaxSweepSpan = 300 * OneDegree; - -class QQuickMaterialBusyIndicatorNode : public QQuickAnimatedNode -{ -public: - QQuickMaterialBusyIndicatorNode(QQuickMaterialBusyIndicator *item); - - void sync(QQuickItem *item) override; - -protected: - void updateCurrentTime(int time) override; - -private: - int m_lastStartAngle = 0; - int m_lastEndAngle = 0; - qreal m_width = 0; - qreal m_height = 0; - qreal m_devicePixelRatio = 1; - QColor m_color; -}; - -QQuickMaterialBusyIndicatorNode::QQuickMaterialBusyIndicatorNode(QQuickMaterialBusyIndicator *item) - : QQuickAnimatedNode(item) -{ - setLoopCount(Infinite); - setCurrentTime(item->elapsed()); - setDuration(RotationAnimationDuration); - - QSGImageNode *textureNode = item->window()->createImageNode(); - textureNode->setOwnsTexture(true); - appendChildNode(textureNode); - - // A texture seems to be required here, but we don't have one yet, as we haven't drawn anything, - // so just use a blank image. - QImage blankImage(item->width(), item->height(), QImage::Format_ARGB32_Premultiplied); - blankImage.fill(Qt::transparent); - textureNode->setTexture(item->window()->createTextureFromImage(blankImage)); -} - -void QQuickMaterialBusyIndicatorNode::updateCurrentTime(int time) -{ - const qreal w = m_width; - const qreal h = m_height; - const qreal size = qMin(w, h); - const qreal dx = (w - size) / 2; - const qreal dy = (h - size) / 2; - - QImage image(size * m_devicePixelRatio, size * m_devicePixelRatio, QImage::Format_ARGB32_Premultiplied); - image.fill(Qt::transparent); - - QPainter painter(&image); - painter.setRenderHint(QPainter::Antialiasing); - - QPen pen; - QSGImageNode *textureNode = static_cast<QSGImageNode *>(firstChild()); - pen.setColor(m_color); - pen.setWidth(qCeil(size / 12) * m_devicePixelRatio); - painter.setPen(pen); - - const qreal percentageComplete = time / qreal(RotationAnimationDuration); - const qreal spanPercentageComplete = (time % SpanAnimationDuration) / qreal(SpanAnimationDuration); - const int iteration = time / SpanAnimationDuration; - int startAngle = 0; - int endAngle = 0; - - if (iteration % 2 == 0) { - if (m_lastStartAngle > 360 * OneDegree) - m_lastStartAngle -= 360 * OneDegree; - - // The start angle is only affected by the rotation animation for the "grow" phase. - startAngle = m_lastStartAngle; - QEasingCurve angleCurve(QEasingCurve::OutQuad); - const qreal percentage = angleCurve.valueForProgress(spanPercentageComplete); - endAngle = m_lastStartAngle + MinSweepSpan + percentage * (MaxSweepSpan - MinSweepSpan); - m_lastEndAngle = endAngle; - } else { - // Both the start angle *and* the span are affected by the "shrink" phase. - QEasingCurve angleCurve(QEasingCurve::InQuad); - const qreal percentage = angleCurve.valueForProgress(spanPercentageComplete); - startAngle = m_lastEndAngle - MaxSweepSpan + percentage * (MaxSweepSpan - MinSweepSpan); - endAngle = m_lastEndAngle; - m_lastStartAngle = startAngle; - } - - const int halfPen = pen.width() / 2; - const QRectF arcBounds = QRectF(halfPen, halfPen, - m_devicePixelRatio * size - pen.width(), - m_devicePixelRatio * size - pen.width()); - // The current angle of the rotation animation. - const qreal rotation = OneDegree * percentageComplete * -TargetRotation; - startAngle -= rotation; - endAngle -= rotation; - const int angleSpan = endAngle - startAngle; - painter.drawArc(arcBounds, -startAngle, -angleSpan); - painter.end(); - - textureNode->setRect(QRectF(dx, dy, size, size)); - textureNode->setTexture(window()->createTextureFromImage(image)); -} - -void QQuickMaterialBusyIndicatorNode::sync(QQuickItem *item) -{ - QQuickMaterialBusyIndicator *indicator = static_cast<QQuickMaterialBusyIndicator *>(item); - m_color = indicator->color(); - m_width = indicator->width(); - m_height = indicator->height(); - m_devicePixelRatio = indicator->window()->effectiveDevicePixelRatio(); -} - -QQuickMaterialBusyIndicator::QQuickMaterialBusyIndicator(QQuickItem *parent) : - QQuickItem(parent) -{ - setFlag(ItemHasContents); -} - -QColor QQuickMaterialBusyIndicator::color() const -{ - return m_color; -} - -void QQuickMaterialBusyIndicator::setColor(const QColor &color) -{ - if (m_color == color) - return; - - m_color = color; - update(); -} - -bool QQuickMaterialBusyIndicator::isRunning() const -{ - return isVisible(); -} - -void QQuickMaterialBusyIndicator::setRunning(bool running) -{ - if (running) - setVisible(true); -} - -int QQuickMaterialBusyIndicator::elapsed() const -{ - return m_elapsed; -} - -void QQuickMaterialBusyIndicator::itemChange(QQuickItem::ItemChange change, const QQuickItem::ItemChangeData &data) -{ - QQuickItem::itemChange(change, data); - switch (change) { - case ItemOpacityHasChanged: - if (qFuzzyIsNull(data.realValue)) - setVisible(false); - break; - case ItemVisibleHasChanged: - update(); - break; - default: - break; - } -} - -QSGNode *QQuickMaterialBusyIndicator::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *) -{ - QQuickMaterialBusyIndicatorNode *node = static_cast<QQuickMaterialBusyIndicatorNode *>(oldNode); - if (isRunning() && width() > 0 && height() > 0) { - if (!node) { - node = new QQuickMaterialBusyIndicatorNode(this); - node->start(); - } - node->sync(this); - } else { - m_elapsed = node ? node->currentTime() : 0; - delete node; - node = nullptr; - } - return node; -} - -QT_END_NAMESPACE |