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Diffstat (limited to 'src/gui/kernel/qgesturestandardrecognizers.cpp')
| -rw-r--r-- | src/gui/kernel/qgesturestandardrecognizers.cpp | 306 |
1 files changed, 0 insertions, 306 deletions
diff --git a/src/gui/kernel/qgesturestandardrecognizers.cpp b/src/gui/kernel/qgesturestandardrecognizers.cpp deleted file mode 100644 index b108994..0000000 --- a/src/gui/kernel/qgesturestandardrecognizers.cpp +++ /dev/null @@ -1,306 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtGui module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the either Technology Preview License Agreement or the -** Beta Release License Agreement. -** -** GNU Lesser General Public License Usage -** Alternatively, 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 1.0, 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. -** -** If you are unsure which license is appropriate for your use, please -** contact the sales department at http://www.qtsoftware.com/contact. -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qgesturestandardrecognizers_p.h" -#include "qgesture_p.h" -#include "qgesturerecognizer_p.h" - -// #define GESTURE_RECOGNIZER_DEBUG -#ifndef GESTURE_RECOGNIZER_DEBUG -# define DEBUG if (0) qDebug -#else -# define DEBUG qDebug -#endif - -QT_BEGIN_NAMESPACE - -QString qt_getStandardGestureTypeName(Qt::GestureType gestureType) -{ - switch (gestureType) { - case Qt::TapGesture: - return QLatin1String("__QTapGesture"); - case Qt::DoubleTapGesture: - return QLatin1String("__QDoubleTapGesture"); - case Qt::TrippleTapGesture: - return QLatin1String("__QTrippleTapGesture"); - case Qt::TapAndHoldGesture: - return QLatin1String("__QTapAndHoldGesture"); - case Qt::PanGesture: - return QLatin1String("__QPanGesture"); - case Qt::PinchGesture: - return QLatin1String("__QPinchGesture"); - case Qt::UnknownGesture: - break; - } - qFatal("QGestureRecognizer::gestureType: got an unhandled gesture type."); - return QLatin1String("__unknown_gesture"); -} - -// -// QGestureRecognizerPan -// - -QGestureRecognizerPan::QGestureRecognizerPan(QObject *parent) - : QGestureRecognizer(QString(), parent), - mousePressed(false), gestureState(Qt::NoGesture), - lastDirection(Qt::NoDirection), currentDirection(Qt::NoDirection) -{ - Q_D(QGestureRecognizer); - d->gestureType = Qt::PanGesture; -} - -QGestureRecognizer::Result QGestureRecognizerPan::filterEvent(const QEvent *event) -{ - if (event->type() == QEvent::MouseButtonPress) { - const QMouseEvent *ev = static_cast<const QMouseEvent*>(event); - if (currentDirection != Qt::NoDirection) { - DEBUG() << "Pan: MouseButtonPress: fail. another press during pan"; - reset(); - return QGestureRecognizer::NotGesture; - } - if (ev->button() != Qt::LeftButton) { - return QGestureRecognizer::NotGesture; - } - DEBUG() << "Pan: MouseButtonPress: maybe gesture started"; - mousePressed = true; - pressedPos = lastPos = currentPos = ev->pos(); - return QGestureRecognizer::MaybeGesture; - } else if (event->type() == QEvent::MouseButtonRelease) { - const QMouseEvent *ev = static_cast<const QMouseEvent*>(event); - if (mousePressed && currentDirection != Qt::NoDirection - && ev->button() == Qt::LeftButton) { - DEBUG() << "Pan: MouseButtonRelease: pan detected"; - gestureState = Qt::GestureFinished; - currentPos = ev->pos(); - internalReset(); - return QGestureRecognizer::GestureFinished; - } - DEBUG() << "Pan: MouseButtonRelease: some weird release detected, ignoring"; - reset(); - return QGestureRecognizer::NotGesture; - } else if (event->type() == QEvent::MouseMove) { - if (!mousePressed) - return QGestureRecognizer::NotGesture; - const QMouseEvent *ev = static_cast<const QMouseEvent*>(event); - lastPos = currentPos; - currentPos = ev->pos(); - Qt::DirectionType newDirection = - simpleRecognizer.addPosition(ev->pos()).direction; - DEBUG() << "Pan: MouseMove: simplerecognizer result = " << newDirection; - QGestureRecognizer::Result result = QGestureRecognizer::NotGesture; - if (currentDirection == Qt::NoDirection) { - if (newDirection == Qt::NoDirection) { - result = QGestureRecognizer::MaybeGesture; - } else { - result = QGestureRecognizer::GestureStarted; - gestureState = Qt::GestureStarted; - } - } else { - result = QGestureRecognizer::GestureStarted; - gestureState = Qt::GestureUpdated; - } - if (newDirection != Qt::NoDirection) { - if (currentDirection != newDirection) - lastDirection = currentDirection; - currentDirection = newDirection; - } - return result; - } - return QGestureRecognizer::Ignore; -} - -QGesture* QGestureRecognizerPan::getGesture() -{ - if (currentDirection == Qt::NoDirection) - return 0; - QPanningGesturePrivate *d = gesture.d_func(); - d->startPos = pressedPos; - d->lastPos = lastPos; - d->pos = currentPos; - d->hotSpot = pressedPos; - d->state = gestureState; - d->lastDirection = lastDirection; - d->direction = currentDirection; - - return &gesture; -} - -void QGestureRecognizerPan::reset() -{ - mousePressed = false; - lastDirection = Qt::NoDirection; - currentDirection = Qt::NoDirection; - gestureState = Qt::NoGesture; - diagonalRecognizer.reset(); - simpleRecognizer.reset(); -} - -void QGestureRecognizerPan::internalReset() -{ - mousePressed = false; - diagonalRecognizer.reset(); - simpleRecognizer.reset(); -} - - -// -// QDoubleTapGestureRecognizer -// -QDoubleTapGestureRecognizer::QDoubleTapGestureRecognizer(QObject *parent) - : QGestureRecognizer(QString(), parent), - gesture(0, qt_getStandardGestureTypeName(Qt::DoubleTapGesture)) -{ - Q_D(QGestureRecognizer); - d->gestureType = Qt::DoubleTapGesture; -} - -QGestureRecognizer::Result QDoubleTapGestureRecognizer::filterEvent(const QEvent *event) -{ - if (event->type() == QEvent::MouseButtonPress) { - const QMouseEvent *ev = static_cast<const QMouseEvent*>(event); - if (pressedPosition.isNull()) { - pressedPosition = ev->pos(); - return QGestureRecognizer::MaybeGesture; - } else if ((pressedPosition - ev->pos()).manhattanLength() < 10) { - return QGestureRecognizer::GestureFinished; - } - return QGestureRecognizer::NotGesture; - } else if (event->type() == QEvent::MouseButtonRelease) { - const QMouseEvent *ev = static_cast<const QMouseEvent*>(event); - if (!pressedPosition.isNull() && (pressedPosition - ev->pos()).manhattanLength() < 10) - return QGestureRecognizer::MaybeGesture; - return QGestureRecognizer::NotGesture; - } else if (event->type() == QEvent::MouseButtonDblClick) { - const QMouseEvent *ev = static_cast<const QMouseEvent*>(event); - pressedPosition = ev->pos(); - return QGestureRecognizer::GestureFinished; - } - return QGestureRecognizer::NotGesture; -} - -QGesture* QDoubleTapGestureRecognizer::getGesture() -{ - QGesturePrivate *d = gesture.d_func(); - d->startPos = pressedPosition; - d->lastPos = pressedPosition; - d->pos = pressedPosition; - d->hotSpot = pressedPosition; - d->state = Qt::GestureFinished; - return &gesture; -} - -void QDoubleTapGestureRecognizer::reset() -{ - pressedPosition = QPoint(); -} - -// -// QTapAndHoldGestureRecognizer -// -const int QTapAndHoldGestureRecognizer::iterationCount = 40; -const int QTapAndHoldGestureRecognizer::iterationTimeout = 50; - -QTapAndHoldGestureRecognizer::QTapAndHoldGestureRecognizer(QObject *parent) - : QGestureRecognizer(QString(), parent), - gesture(0, qt_getStandardGestureTypeName(Qt::TapAndHoldGesture)), - iteration(0) -{ - Q_D(QGestureRecognizer); - d->gestureType = Qt::TapAndHoldGesture; -} - -QGestureRecognizer::Result QTapAndHoldGestureRecognizer::filterEvent(const QEvent *event) -{ - if (event->type() == QEvent::MouseButtonPress) { - const QMouseEvent *ev = static_cast<const QMouseEvent*>(event); - if (timer.isActive()) - timer.stop(); - timer.start(QTapAndHoldGestureRecognizer::iterationTimeout, this); - pressedPosition = ev->pos(); - return QGestureRecognizer::MaybeGesture; - } else if (event->type() == QEvent::MouseMove) { - const QMouseEvent *ev = static_cast<const QMouseEvent*>(event); - if ((pressedPosition - ev->pos()).manhattanLength() < 15) - return QGestureRecognizer::GestureStarted; - else - return QGestureRecognizer::NotGesture; - } else if (event->type() == QEvent::MouseButtonRelease) { - timer.stop(); - return QGestureRecognizer::NotGesture; - } - return QGestureRecognizer::Ignore; -} - -void QTapAndHoldGestureRecognizer::timerEvent(QTimerEvent *event) -{ - if (event->timerId() != timer.timerId()) - return; - if (iteration == QTapAndHoldGestureRecognizer::iterationCount) { - timer.stop(); - emit stateChanged(QGestureRecognizer::GestureFinished); - } else { - emit stateChanged(QGestureRecognizer::GestureStarted); - } - ++iteration; -} - -QGesture* QTapAndHoldGestureRecognizer::getGesture() -{ - QGesturePrivate *d = gesture.d_func(); - d->startPos = pressedPosition; - d->lastPos = pressedPosition; - d->pos = pressedPosition; - d->hotSpot = pressedPosition; - if (iteration >= QTapAndHoldGestureRecognizer::iterationCount) - d->state = Qt::GestureFinished; - else - d->state = iteration == 0 ? Qt::GestureStarted : Qt::GestureUpdated; - return &gesture; -} - -void QTapAndHoldGestureRecognizer::reset() -{ - pressedPosition = QPoint(); - timer.stop(); - iteration = 0; -} - -QT_END_NAMESPACE |