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Diffstat (limited to 'examples/gestures/collidingmice/gesturerecognizerlinjazax.cpp')
| -rw-r--r-- | examples/gestures/collidingmice/gesturerecognizerlinjazax.cpp | 213 |
1 files changed, 0 insertions, 213 deletions
diff --git a/examples/gestures/collidingmice/gesturerecognizerlinjazax.cpp b/examples/gestures/collidingmice/gesturerecognizerlinjazax.cpp deleted file mode 100644 index 2070f6f7f..000000000 --- a/examples/gestures/collidingmice/gesturerecognizerlinjazax.cpp +++ /dev/null @@ -1,213 +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 examples 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 "gesturerecognizerlinjazax.h" - -#include <QRegExp> -#include <QDebug> - -static const int SIZE = 20; - -DirectionSimpleRecognizer::DirectionSimpleRecognizer() -{ -} - -Direction DirectionSimpleRecognizer::addPosition(const QPoint &pos) -{ - if (!directions.isEmpty()) { - const QPoint tmp = pos - directions.back().point; - if (tmp.manhattanLength() < 5) - return Direction(); - } - if (lastPoint.isNull()) { - lastPoint = pos; - return Direction(); - } - int dx = pos.x() - lastPoint.x(); - int dy = pos.y() - lastPoint.y(); - QString direction; - if (dx < 0) { - if (-1*dx >= SIZE/2) - direction = "4"; - } else { - if (dx >= SIZE/2) - direction = "6"; - } - if (dy < 0) { - if (-1*dy >= SIZE/2) - direction = "8"; - } else { - if (dy >= SIZE/2) - direction = "2"; - } - if (direction.isEmpty()) - return Direction(); - - lastPoint = pos; - directions.push_back(Direction(direction, pos)); - return Direction(direction, pos); -} - - -DirectionList DirectionSimpleRecognizer::getDirections() const -{ - return directions; -} - -void DirectionSimpleRecognizer::reset() -{ - directions.clear(); - lastPoint = QPoint(); -} - -/////////////////////////////////////////////////////////////////////////// - -GestureRecognizerLinjaZax::GestureRecognizerLinjaZax() - : QGestureRecognizer(QLatin1String("LinjaZax")), mousePressed(false), gestureFinished(false), - zoomState(LinjaZaxGesture::NoZoom) -{ -} - -QGestureRecognizer::Result GestureRecognizerLinjaZax::filterEvent(const QEvent *event) -{ - if (zoomState != LinjaZaxGesture::NoZoom && !lastDirections.isEmpty()) { - lastDirections = lastDirections.right(1); - zoomState = LinjaZaxGesture::NoZoom; - } - - if (event->type() == QEvent::MouseButtonPress) { - if (!currentDirection.isEmpty()) { - reset(); - return QGestureRecognizer::NotGesture; - } - mousePressed = true; - const QMouseEvent *ev = static_cast<const QMouseEvent*>(event); - 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.isEmpty()) { - gestureFinished = true; - currentPos = ev->pos(); - internalReset(); - return QGestureRecognizer::GestureFinished; - } - reset(); - return QGestureRecognizer::NotGesture; - } else if (event->type() == QEvent::MouseMove) { - if (!mousePressed) - return QGestureRecognizer::NotGesture; - lastPos = currentPos; - const QMouseEvent *ev = static_cast<const QMouseEvent*>(event); - currentPos = ev->pos(); - QString direction = - simpleRecognizer.addPosition(ev->pos()).direction; - QGestureRecognizer::Result result = QGestureRecognizer::NotGesture; - if (currentDirection.isEmpty()) { - if (direction.isEmpty()) - result = QGestureRecognizer::MaybeGesture; - else - result = QGestureRecognizer::GestureStarted; - } else { - result = QGestureRecognizer::GestureStarted; - } - if (!direction.isEmpty()) { - lastDirections.append(direction); - currentDirection = direction; - if (lastDirections.length() > 5) - lastDirections.remove(0, 1); - if (lastDirections.contains("248") || lastDirections.contains("2448")) - zoomState = LinjaZaxGesture::ZoomingIn; - else if (lastDirections.contains("268") || lastDirections.contains("2668")) - zoomState = LinjaZaxGesture::ZoomingOut; - } - return result; - } - return QGestureRecognizer::NotGesture; -} - -static inline LinjaZaxGesture::DirectionType convertPanningDirection(const QString &direction) -{ - if (direction.length() == 1) { - if (direction == "4") - return LinjaZaxGesture::Left; - else if (direction == "6") - return LinjaZaxGesture::Right; - else if (direction == "8") - return LinjaZaxGesture::Up; - else if (direction == "2") - return LinjaZaxGesture::Down; - } - return LinjaZaxGesture::None; -} - -QGesture* GestureRecognizerLinjaZax::getGesture() -{ - LinjaZaxGesture::DirectionType dir = convertPanningDirection(currentDirection); - LinjaZaxGesture::DirectionType lastDir = convertPanningDirection(lastDirections.right(1)); - if (dir == LinjaZaxGesture::None) - return 0; - LinjaZaxGesture *g = - new LinjaZaxGesture(this, pressedPos, lastPos, currentPos, - QRect(), pressedPos, QDateTime(), 0, - gestureFinished ? Qt::GestureFinished : Qt::GestureStarted); - g->lastDirection_ = lastDir; - g->direction_ = dir; - g->zoomState_ = zoomState; - - return g; -} - -void GestureRecognizerLinjaZax::reset() -{ - mousePressed = false; - lastDirections.clear(); - currentDirection.clear(); - gestureFinished = false; - simpleRecognizer.reset(); - zoomState = LinjaZaxGesture::NoZoom; -} - -void GestureRecognizerLinjaZax::internalReset() -{ - mousePressed = false; - simpleRecognizer.reset(); -} |