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/*
Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "PlatformWheelEvent.h"
#include "PlatformMouseEvent.h"
#include "Scrollbar.h"
#include <qapplication.h>
#include <QWheelEvent>
namespace WebCore {
PlatformWheelEvent::PlatformWheelEvent(QWheelEvent* e)
#ifdef QT_NO_WHEELEVENT
{
Q_UNUSED(e);
}
#else
: m_position(e->pos())
, m_globalPosition(e->globalPos())
#ifdef QT_MAC_USE_COCOA
, m_granularity(ScrollByPixelWheelEvent)
#else
, m_granularity(ScrollByLineWheelEvent)
#endif
, m_isAccepted(false)
, m_shiftKey(e->modifiers() & Qt::ShiftModifier)
, m_ctrlKey(e->modifiers() & Qt::ControlModifier)
, m_altKey(e->modifiers() & Qt::AltModifier)
, m_metaKey(e->modifiers() & Qt::MetaModifier)
{
if (e->orientation() == Qt::Horizontal) {
m_deltaX = (e->delta() / 120);
m_deltaY = 0;
} else {
m_deltaX = 0;
m_deltaY = (e->delta() / 120);
}
m_deltaX *= QApplication::wheelScrollLines();
// use the same single scroll step as QTextEdit (in
// QTextEditPrivate::init [h,v]bar->setSingleStep )
// and divide by the default WebKit scroll step to
// get the Qt mouse wheel scroll behavior
static const float cDefaultQtScrollStep = 20.f;
m_deltaY *= QApplication::wheelScrollLines() *
(cDefaultQtScrollStep / cMouseWheelPixelsPerLineStep);
}
#endif // QT_NO_WHEELEVENT
} // namespace WebCore
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