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Diffstat (limited to 'src/gui/kernel/qstandardgestures.cpp')
| -rw-r--r-- | src/gui/kernel/qstandardgestures.cpp | 595 |
1 files changed, 0 insertions, 595 deletions
diff --git a/src/gui/kernel/qstandardgestures.cpp b/src/gui/kernel/qstandardgestures.cpp deleted file mode 100644 index a557342023..0000000000 --- a/src/gui/kernel/qstandardgestures.cpp +++ /dev/null @@ -1,595 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtGui module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** This file may be used under the terms of the GNU Lesser General Public -** License version 2.1 as published by the Free Software Foundation and -** appearing in the file LICENSE.LGPL included in the packaging of this -** file. Please review the following information to ensure the GNU Lesser -** General Public License version 2.1 requirements will be met: -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU General -** Public License version 3.0 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 3.0 requirements will be met: -** http://www.gnu.org/copyleft/gpl.html. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qstandardgestures_p.h" -#include "qgesture.h" -#include "qgesture_p.h" -#include "qevent.h" -#include "qwidget.h" -#include "qabstractscrollarea.h" -#include <qgraphicssceneevent.h> -#include "qdebug.h" - -#ifndef QT_NO_GESTURES - -QT_BEGIN_NAMESPACE - -QPanGestureRecognizer::QPanGestureRecognizer() -{ -} - -QGesture *QPanGestureRecognizer::create(QObject *target) -{ - if (target && target->isWidgetType()) { -#if defined(Q_OS_WIN) && !defined(QT_NO_NATIVE_GESTURES) - // for scroll areas on Windows we want to use native gestures instead - if (!qobject_cast<QAbstractScrollArea *>(target->parent())) - static_cast<QWidget *>(target)->setAttribute(Qt::WA_AcceptTouchEvents); -#else - static_cast<QWidget *>(target)->setAttribute(Qt::WA_AcceptTouchEvents); -#endif - } - return new QPanGesture; -} - -QGestureRecognizer::Result QPanGestureRecognizer::recognize(QGesture *state, - QObject *, - QEvent *event) -{ - QPanGesture *q = static_cast<QPanGesture *>(state); - QPanGesturePrivate *d = q->d_func(); - - const QTouchEvent *ev = static_cast<const QTouchEvent *>(event); - - QGestureRecognizer::Result result; - switch (event->type()) { - case QEvent::TouchBegin: { - result = QGestureRecognizer::MayBeGesture; - QTouchEvent::TouchPoint p = ev->touchPoints().at(0); - d->lastOffset = d->offset = QPointF(); - break; - } - case QEvent::TouchEnd: { - if (q->state() != Qt::NoGesture) { - if (ev->touchPoints().size() == 2) { - QTouchEvent::TouchPoint p1 = ev->touchPoints().at(0); - QTouchEvent::TouchPoint p2 = ev->touchPoints().at(1); - d->lastOffset = d->offset; - d->offset = - QPointF(p1.pos().x() - p1.startPos().x() + p2.pos().x() - p2.startPos().x(), - p1.pos().y() - p1.startPos().y() + p2.pos().y() - p2.startPos().y()) / 2; - } - result = QGestureRecognizer::FinishGesture; - } else { - result = QGestureRecognizer::CancelGesture; - } - break; - } - case QEvent::TouchUpdate: { - if (ev->touchPoints().size() >= 2) { - QTouchEvent::TouchPoint p1 = ev->touchPoints().at(0); - QTouchEvent::TouchPoint p2 = ev->touchPoints().at(1); - d->lastOffset = d->offset; - d->offset = - QPointF(p1.pos().x() - p1.startPos().x() + p2.pos().x() - p2.startPos().x(), - p1.pos().y() - p1.startPos().y() + p2.pos().y() - p2.startPos().y()) / 2; - if (d->offset.x() > 10 || d->offset.y() > 10 || - d->offset.x() < -10 || d->offset.y() < -10) { - q->setHotSpot(p1.startScreenPos()); - result = QGestureRecognizer::TriggerGesture; - } else { - result = QGestureRecognizer::MayBeGesture; - } - } - break; - } - case QEvent::MouseButtonPress: - case QEvent::MouseMove: - case QEvent::MouseButtonRelease: - result = QGestureRecognizer::Ignore; - break; - default: - result = QGestureRecognizer::Ignore; - break; - } - return result; -} - -void QPanGestureRecognizer::reset(QGesture *state) -{ - QPanGesture *pan = static_cast<QPanGesture*>(state); - QPanGesturePrivate *d = pan->d_func(); - - d->lastOffset = d->offset = QPointF(); - d->acceleration = 0; - - QGestureRecognizer::reset(state); -} - - -// -// QPinchGestureRecognizer -// - -QPinchGestureRecognizer::QPinchGestureRecognizer() -{ -} - -QGesture *QPinchGestureRecognizer::create(QObject *target) -{ - if (target && target->isWidgetType()) { - static_cast<QWidget *>(target)->setAttribute(Qt::WA_AcceptTouchEvents); - } - return new QPinchGesture; -} - -QGestureRecognizer::Result QPinchGestureRecognizer::recognize(QGesture *state, - QObject *, - QEvent *event) -{ - QPinchGesture *q = static_cast<QPinchGesture *>(state); - QPinchGesturePrivate *d = q->d_func(); - - const QTouchEvent *ev = static_cast<const QTouchEvent *>(event); - - QGestureRecognizer::Result result; - - switch (event->type()) { - case QEvent::TouchBegin: { - result = QGestureRecognizer::MayBeGesture; - break; - } - case QEvent::TouchEnd: { - if (q->state() != Qt::NoGesture) { - result = QGestureRecognizer::FinishGesture; - } else { - result = QGestureRecognizer::CancelGesture; - } - break; - } - case QEvent::TouchUpdate: { - d->changeFlags = 0; - if (ev->touchPoints().size() == 2) { - QTouchEvent::TouchPoint p1 = ev->touchPoints().at(0); - QTouchEvent::TouchPoint p2 = ev->touchPoints().at(1); - - d->hotSpot = p1.screenPos(); - d->isHotSpotSet = true; - - QPointF centerPoint = (p1.screenPos() + p2.screenPos()) / 2.0; - if (d->isNewSequence) { - d->startPosition[0] = p1.screenPos(); - d->startPosition[1] = p2.screenPos(); - d->lastCenterPoint = centerPoint; - } else { - d->lastCenterPoint = d->centerPoint; - } - d->centerPoint = centerPoint; - - d->changeFlags |= QPinchGesture::CenterPointChanged; - - if (d->isNewSequence) { - d->scaleFactor = 1.0; - d->lastScaleFactor = 1.0; - } else { - d->lastScaleFactor = d->scaleFactor; - QLineF line(p1.screenPos(), p2.screenPos()); - QLineF lastLine(p1.lastScreenPos(), p2.lastScreenPos()); - d->scaleFactor = line.length() / lastLine.length(); - } - d->totalScaleFactor = d->totalScaleFactor * d->scaleFactor; - d->changeFlags |= QPinchGesture::ScaleFactorChanged; - - qreal angle = QLineF(p1.screenPos(), p2.screenPos()).angle(); - if (angle > 180) - angle -= 360; - qreal startAngle = QLineF(p1.startScreenPos(), p2.startScreenPos()).angle(); - if (startAngle > 180) - startAngle -= 360; - const qreal rotationAngle = startAngle - angle; - if (d->isNewSequence) - d->lastRotationAngle = 0.0; - else - d->lastRotationAngle = d->rotationAngle; - d->rotationAngle = rotationAngle; - d->totalRotationAngle += d->rotationAngle - d->lastRotationAngle; - d->changeFlags |= QPinchGesture::RotationAngleChanged; - - d->totalChangeFlags |= d->changeFlags; - d->isNewSequence = false; - result = QGestureRecognizer::TriggerGesture; - } else { - d->isNewSequence = true; - if (q->state() == Qt::NoGesture) - result = QGestureRecognizer::Ignore; - else - result = QGestureRecognizer::FinishGesture; - } - break; - } - case QEvent::MouseButtonPress: - case QEvent::MouseMove: - case QEvent::MouseButtonRelease: - result = QGestureRecognizer::Ignore; - break; - default: - result = QGestureRecognizer::Ignore; - break; - } - return result; -} - -void QPinchGestureRecognizer::reset(QGesture *state) -{ - QPinchGesture *pinch = static_cast<QPinchGesture *>(state); - QPinchGesturePrivate *d = pinch->d_func(); - - d->totalChangeFlags = d->changeFlags = 0; - - d->startCenterPoint = d->lastCenterPoint = d->centerPoint = QPointF(); - d->totalScaleFactor = d->lastScaleFactor = d->scaleFactor = 1; - d->totalRotationAngle = d->lastRotationAngle = d->rotationAngle = 0; - - d->isNewSequence = true; - d->startPosition[0] = d->startPosition[1] = QPointF(); - - QGestureRecognizer::reset(state); -} - -// -// QSwipeGestureRecognizer -// - -QSwipeGestureRecognizer::QSwipeGestureRecognizer() -{ -} - -QGesture *QSwipeGestureRecognizer::create(QObject *target) -{ - if (target && target->isWidgetType()) { - static_cast<QWidget *>(target)->setAttribute(Qt::WA_AcceptTouchEvents); - } - return new QSwipeGesture; -} - -QGestureRecognizer::Result QSwipeGestureRecognizer::recognize(QGesture *state, - QObject *, - QEvent *event) -{ - QSwipeGesture *q = static_cast<QSwipeGesture *>(state); - QSwipeGesturePrivate *d = q->d_func(); - - const QTouchEvent *ev = static_cast<const QTouchEvent *>(event); - - QGestureRecognizer::Result result; - - switch (event->type()) { - case QEvent::TouchBegin: { - d->velocityValue = 1; - d->time.start(); - d->started = true; - result = QGestureRecognizer::MayBeGesture; - break; - } - case QEvent::TouchEnd: { - if (q->state() != Qt::NoGesture) { - result = QGestureRecognizer::FinishGesture; - } else { - result = QGestureRecognizer::CancelGesture; - } - break; - } - case QEvent::TouchUpdate: { - if (!d->started) - result = QGestureRecognizer::CancelGesture; - else if (ev->touchPoints().size() == 3) { - QTouchEvent::TouchPoint p1 = ev->touchPoints().at(0); - QTouchEvent::TouchPoint p2 = ev->touchPoints().at(1); - QTouchEvent::TouchPoint p3 = ev->touchPoints().at(2); - - if (d->lastPositions[0].isNull()) { - d->lastPositions[0] = p1.startScreenPos().toPoint(); - d->lastPositions[1] = p2.startScreenPos().toPoint(); - d->lastPositions[2] = p3.startScreenPos().toPoint(); - } - d->hotSpot = p1.screenPos(); - d->isHotSpotSet = true; - - int xDistance = (p1.screenPos().x() - d->lastPositions[0].x() + - p2.screenPos().x() - d->lastPositions[1].x() + - p3.screenPos().x() - d->lastPositions[2].x()) / 3; - int yDistance = (p1.screenPos().y() - d->lastPositions[0].y() + - p2.screenPos().y() - d->lastPositions[1].y() + - p3.screenPos().y() - d->lastPositions[2].y()) / 3; - - const int distance = xDistance >= yDistance ? xDistance : yDistance; - int elapsedTime = d->time.restart(); - if (!elapsedTime) - elapsedTime = 1; - d->velocityValue = 0.9 * d->velocityValue + distance / elapsedTime; - d->swipeAngle = QLineF(p1.startScreenPos(), p1.screenPos()).angle(); - - static const int MoveThreshold = 50; - if (xDistance > MoveThreshold || yDistance > MoveThreshold) { - // measure the distance to check if the direction changed - d->lastPositions[0] = p1.screenPos().toPoint(); - d->lastPositions[1] = p2.screenPos().toPoint(); - d->lastPositions[2] = p3.screenPos().toPoint(); - QSwipeGesture::SwipeDirection horizontal = - xDistance > 0 ? QSwipeGesture::Right : QSwipeGesture::Left; - QSwipeGesture::SwipeDirection vertical = - yDistance > 0 ? QSwipeGesture::Down : QSwipeGesture::Up; - if (d->verticalDirection == QSwipeGesture::NoDirection) - d->verticalDirection = vertical; - if (d->horizontalDirection == QSwipeGesture::NoDirection) - d->horizontalDirection = horizontal; - if (d->verticalDirection != vertical || d->horizontalDirection != horizontal) { - // the user has changed the direction! - result = QGestureRecognizer::CancelGesture; - } - result = QGestureRecognizer::TriggerGesture; - } else { - if (q->state() != Qt::NoGesture) - result = QGestureRecognizer::TriggerGesture; - else - result = QGestureRecognizer::MayBeGesture; - } - } else if (ev->touchPoints().size() > 3) { - result = QGestureRecognizer::CancelGesture; - } else { // less than 3 touch points - if (d->started && (ev->touchPointStates() & Qt::TouchPointPressed)) - result = QGestureRecognizer::CancelGesture; - else if (d->started) - result = QGestureRecognizer::Ignore; - else - result = QGestureRecognizer::MayBeGesture; - } - break; - } - case QEvent::MouseButtonPress: - case QEvent::MouseMove: - case QEvent::MouseButtonRelease: - result = QGestureRecognizer::Ignore; - break; - default: - result = QGestureRecognizer::Ignore; - break; - } - return result; -} - -void QSwipeGestureRecognizer::reset(QGesture *state) -{ - QSwipeGesture *q = static_cast<QSwipeGesture *>(state); - QSwipeGesturePrivate *d = q->d_func(); - - d->verticalDirection = d->horizontalDirection = QSwipeGesture::NoDirection; - d->swipeAngle = 0; - - d->lastPositions[0] = d->lastPositions[1] = d->lastPositions[2] = QPoint(); - d->started = false; - d->velocityValue = 0; - d->time.invalidate(); - - QGestureRecognizer::reset(state); -} - -// -// QTapGestureRecognizer -// - -QTapGestureRecognizer::QTapGestureRecognizer() -{ -} - -QGesture *QTapGestureRecognizer::create(QObject *target) -{ - if (target && target->isWidgetType()) { - static_cast<QWidget *>(target)->setAttribute(Qt::WA_AcceptTouchEvents); - } - return new QTapGesture; -} - -QGestureRecognizer::Result QTapGestureRecognizer::recognize(QGesture *state, - QObject *, - QEvent *event) -{ - QTapGesture *q = static_cast<QTapGesture *>(state); - QTapGesturePrivate *d = q->d_func(); - - const QTouchEvent *ev = static_cast<const QTouchEvent *>(event); - - QGestureRecognizer::Result result = QGestureRecognizer::CancelGesture; - - switch (event->type()) { - case QEvent::TouchBegin: { - d->position = ev->touchPoints().at(0).pos(); - q->setHotSpot(ev->touchPoints().at(0).screenPos()); - result = QGestureRecognizer::TriggerGesture; - break; - } - case QEvent::TouchUpdate: - case QEvent::TouchEnd: { - if (q->state() != Qt::NoGesture && ev->touchPoints().size() == 1) { - QTouchEvent::TouchPoint p = ev->touchPoints().at(0); - QPoint delta = p.pos().toPoint() - p.startPos().toPoint(); - enum { TapRadius = 40 }; - if (delta.manhattanLength() <= TapRadius) { - if (event->type() == QEvent::TouchEnd) - result = QGestureRecognizer::FinishGesture; - else - result = QGestureRecognizer::TriggerGesture; - } - } - break; - } - case QEvent::MouseButtonPress: - case QEvent::MouseMove: - case QEvent::MouseButtonRelease: - result = QGestureRecognizer::Ignore; - break; - default: - result = QGestureRecognizer::Ignore; - break; - } - return result; -} - -void QTapGestureRecognizer::reset(QGesture *state) -{ - QTapGesture *q = static_cast<QTapGesture *>(state); - QTapGesturePrivate *d = q->d_func(); - - d->position = QPointF(); - - QGestureRecognizer::reset(state); -} - -// -// QTapAndHoldGestureRecognizer -// - -QTapAndHoldGestureRecognizer::QTapAndHoldGestureRecognizer() -{ -} - -QGesture *QTapAndHoldGestureRecognizer::create(QObject *target) -{ - if (target && target->isWidgetType()) { - static_cast<QWidget *>(target)->setAttribute(Qt::WA_AcceptTouchEvents); - } - return new QTapAndHoldGesture; -} - -QGestureRecognizer::Result -QTapAndHoldGestureRecognizer::recognize(QGesture *state, QObject *object, - QEvent *event) -{ - QTapAndHoldGesture *q = static_cast<QTapAndHoldGesture *>(state); - QTapAndHoldGesturePrivate *d = q->d_func(); - - if (object == state && event->type() == QEvent::Timer) { - q->killTimer(d->timerId); - d->timerId = 0; - return QGestureRecognizer::FinishGesture | QGestureRecognizer::ConsumeEventHint; - } - - const QTouchEvent *ev = static_cast<const QTouchEvent *>(event); - const QMouseEvent *me = static_cast<const QMouseEvent *>(event); -#ifndef QT_NO_GRAPHICSVIEW - const QGraphicsSceneMouseEvent *gsme = static_cast<const QGraphicsSceneMouseEvent *>(event); -#endif - - enum { TapRadius = 40 }; - - switch (event->type()) { -#ifndef QT_NO_GRAPHICSVIEW - case QEvent::GraphicsSceneMousePress: - d->position = gsme->screenPos(); - q->setHotSpot(d->position); - if (d->timerId) - q->killTimer(d->timerId); - d->timerId = q->startTimer(QTapAndHoldGesturePrivate::Timeout); - return QGestureRecognizer::MayBeGesture; // we don't show a sign of life until the timeout -#endif - case QEvent::MouseButtonPress: - d->position = me->globalPos(); - q->setHotSpot(d->position); - if (d->timerId) - q->killTimer(d->timerId); - d->timerId = q->startTimer(QTapAndHoldGesturePrivate::Timeout); - return QGestureRecognizer::MayBeGesture; // we don't show a sign of life until the timeout - case QEvent::TouchBegin: - d->position = ev->touchPoints().at(0).startScreenPos(); - q->setHotSpot(d->position); - if (d->timerId) - q->killTimer(d->timerId); - d->timerId = q->startTimer(QTapAndHoldGesturePrivate::Timeout); - return QGestureRecognizer::MayBeGesture; // we don't show a sign of life until the timeout -#ifndef QT_NO_GRAPHICSVIEW - case QEvent::GraphicsSceneMouseRelease: -#endif - case QEvent::MouseButtonRelease: - case QEvent::TouchEnd: - return QGestureRecognizer::CancelGesture; // get out of the MayBeGesture state - case QEvent::TouchUpdate: - if (d->timerId && ev->touchPoints().size() == 1) { - QTouchEvent::TouchPoint p = ev->touchPoints().at(0); - QPoint delta = p.pos().toPoint() - p.startPos().toPoint(); - if (delta.manhattanLength() <= TapRadius) - return QGestureRecognizer::MayBeGesture; - } - return QGestureRecognizer::CancelGesture; - case QEvent::MouseMove: { - QPoint delta = me->globalPos() - d->position.toPoint(); - if (d->timerId && delta.manhattanLength() <= TapRadius) - return QGestureRecognizer::MayBeGesture; - return QGestureRecognizer::CancelGesture; - } -#ifndef QT_NO_GRAPHICSVIEW - case QEvent::GraphicsSceneMouseMove: { - QPoint delta = gsme->screenPos() - d->position.toPoint(); - if (d->timerId && delta.manhattanLength() <= TapRadius) - return QGestureRecognizer::MayBeGesture; - return QGestureRecognizer::CancelGesture; - } -#endif - default: - return QGestureRecognizer::Ignore; - } -} - -void QTapAndHoldGestureRecognizer::reset(QGesture *state) -{ - QTapAndHoldGesture *q = static_cast<QTapAndHoldGesture *>(state); - QTapAndHoldGesturePrivate *d = q->d_func(); - - d->position = QPointF(); - if (d->timerId) - q->killTimer(d->timerId); - d->timerId = 0; - - QGestureRecognizer::reset(state); -} - -QT_END_NAMESPACE - -#endif // QT_NO_GESTURES |