author | hgs |
Mon, 12 Jul 2010 15:46:53 -0400 | |
changeset 7 | a1f515018ac1 |
parent 3 | 0954f5dd2cd0 |
child 16 | 3c88a81ff781 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
3 | 4 |
* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation, version 2.1 of the License. |
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* |
3 | 9 |
* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Lesser General Public License for more details. |
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* |
3 | 14 |
* You should have received a copy of the GNU Lesser General Public License |
15 |
* along with this program. If not, |
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* see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/". |
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* |
3 | 18 |
* Description: |
0
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* |
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*/ |
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|
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#include <QTimer> |
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#include <QGraphicsWebView> |
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#include <QWebPage> |
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#include <QWebFrame> |
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#include <QGraphicsScene> |
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#include <QGraphicsView> |
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#include "WebTouchNavigation.h" |
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#include "KineticHelper.h" |
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#define SCROLL_TIMEOUT 40 |
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namespace GVA { |
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using namespace qstmGesture; |
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DecelEdit::DecelEdit(WebTouchNavigation* nav) : QLineEdit(), m_nav(nav) |
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{ |
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setMaxLength(6); |
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connect(this, SIGNAL(editingFinished()), this, SLOT(setDecel())); |
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// connect(this, SIGNAL(returnPressed ()), this, SLOT(setDecel())); |
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} |
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void DecelEdit::setDecel() |
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{ |
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QString txt = text(); |
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bool ok = false; |
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int decel = txt.toInt(&ok); |
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m_nav->m_kinetic->setDeceleration((qreal)decel); |
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hide(); |
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} |
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WebTouchNavigation::WebTouchNavigation(QGraphicsWebView* view) : |
3 | 58 |
m_view(view), |
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m_scrollTimer(0) |
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{ |
3 | 62 |
m_webPage = m_view->page(); |
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m_kinetic = new KineticHelper(this); |
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m_decelEdit = new DecelEdit(this); |
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} |
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WebTouchNavigation::~WebTouchNavigation() |
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{ |
3 | 69 |
disconnect(m_scrollTimer, SIGNAL(timeout()),this,SLOT(pan())); |
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delete m_scrollTimer; |
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||
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delete m_kinetic; |
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} |
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void WebTouchNavigation::handleQStmGesture(QStm_Gesture* gesture) |
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{ |
3 | 78 |
QStm_GestureType type = gesture->getGestureStmType(); |
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switch (type) { |
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case QStmTapGestureType: |
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{ |
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doTap(gesture); |
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break; |
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} |
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case QStmPanGestureType: |
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{ |
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doPan(gesture); |
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break; |
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} |
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case QStmFlickGestureType: |
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{ |
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doFlick(gesture); |
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break; |
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} |
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case QStmDoubleTapGestureType: |
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{ |
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m_decelEdit->show(); |
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break; |
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} |
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case QStmTouchGestureType: |
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{ |
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doTouch(gesture); |
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break; |
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} |
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} |
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} |
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void WebTouchNavigation::doTouch(QStm_Gesture* gesture) |
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{ |
3 | 111 |
stopScrolling(); |
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if (m_kinetic->isScrolling()) { |
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m_kinetic->stopScrolling(); |
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} |
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} |
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void WebTouchNavigation::stopScrolling() |
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{ |
3 | 119 |
if (m_scrollTimer && m_scrollTimer->isActive()) { |
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m_scrollTimer->stop(); |
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m_scrollDelta = QPoint(0,0); |
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} |
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} |
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void WebTouchNavigation::doFlick(QStm_Gesture* gesture) |
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{ |
3 | 128 |
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QPointF pos = mapFromGlobal(gesture->position()); |
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m_kineticSpeed = gesture->getSpeedVec(); |
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QStm_GestureDirection direction = static_cast<QStm_GestureDirection>(gesture->getDirection()); |
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||
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if (direction == ENorth || direction == ESouth) { |
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m_kineticSpeed.setY(0.0); |
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} |
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else if (direction == EEast || direction == EWest) { |
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m_kineticSpeed.setX(0.0); |
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} |
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m_kineticSpeed *= -1.0; |
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m_frame = m_webPage->frameAt(pos.toPoint()); |
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m_kinetic->startScrolling(); |
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} |
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void WebTouchNavigation::doPan(QStm_Gesture* gesture) |
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{ |
3 | 147 |
if (gesture->gestureState() == Qt::GestureFinished) { |
148 |
stopScrolling(); |
|
149 |
} |
|
150 |
else { |
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151 |
m_scrollDelta += gesture->getLengthAndDirection(); |
|
152 |
Q_ASSERT(m_scrollDelta.x() != 0 || m_scrollDelta.y() != 0); |
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QPointF pos = mapFromGlobal(gesture->position()); |
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m_frame = m_webPage->frameAt(pos.toPoint()); |
|
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if (!m_scrollTimer) { |
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m_scrollTimer = new QTimer(this); |
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m_scrollTimer->setSingleShot(false); |
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QObject::connect(m_scrollTimer, SIGNAL(timeout()), this, SLOT(pan())); |
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} |
3 | 160 |
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if (!m_scrollTimer->isActive()) { |
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m_scrollTimer->stop(); |
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m_scrollTimer->start(SCROLL_TIMEOUT); |
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} |
3 | 165 |
} |
0
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166 |
} |
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|
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void WebTouchNavigation::pan() |
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169 |
{ |
3 | 170 |
if (m_scrollDelta.x() != 0 || m_scrollDelta.y() != 0) { |
171 |
m_frame->scroll(-m_scrollDelta.x(), m_scrollDelta.y()); |
|
172 |
m_scrollDelta = QPoint(0,0); |
|
173 |
} |
|
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} |
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void WebTouchNavigation::doTap(QStm_Gesture* gesture) |
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{ |
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QPoint gpos = gesture->position(); |
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QPoint pos = mapFromGlobal(gpos).toPoint(); |
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Qt::MouseButtons buttons = Qt::LeftButton; |
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buttons &= ~Qt::RightButton; |
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buttons &= ~Qt::MidButton; |
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buttons &= Qt::MouseButtonMask; |
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QMouseEvent mdown (QEvent::MouseButtonPress, pos, gpos, Qt::LeftButton, buttons, Qt::NoModifier); |
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QMouseEvent mup (QEvent::MouseButtonRelease, pos, gpos, Qt::LeftButton, Qt::NoButton, Qt::NoModifier); |
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m_webPage->event(&mdown); |
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m_webPage->event(&mup); |
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} |
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QPointF WebTouchNavigation::mapFromGlobal(const QPointF& gpos) |
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{ |
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QGraphicsScene* scene = m_view->scene(); |
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QList<QGraphicsView*> gvList = scene->views(); |
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QList<QGraphicsView*>::iterator it; |
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for (it = gvList.begin(); it != gvList.end(); it++) { |
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if (static_cast<QGraphicsView*>(*it)->hasFocus()) { |
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QWidget* viewport = static_cast<QGraphicsView*>(*it)->viewport(); |
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return m_view->mapFromScene(viewport->mapFromGlobal(gpos.toPoint())); |
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} |
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return QPointF(0.0, 0.0); |
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} |
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void WebTouchNavigation::scrollTo(QPoint& pos) |
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{ |
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m_frame->setScrollPosition(pos); |
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} |
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QPoint WebTouchNavigation::getScrollPosition() |
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{ |
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return m_frame->scrollPosition(); |
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} |
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QPoint WebTouchNavigation::getInitialPosition() |
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{ |
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return m_frame->scrollPosition(); |
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} |
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QPointF WebTouchNavigation::getInitialSpeed() |
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return m_kineticSpeed; |
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} |
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} |
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