1/*
2 * Copyright (C) 2007 Ryan Leavengood <leavengood@gmail.com>
3 * Copyright (C) 2009 Maxime Simon <simon.maxime@gmail.com>
4 *
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
20 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
21 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
24 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include "config.h"
30#include "PlatformWheelEvent.h"
31
32#include "Scrollbar.h"
33
34#include <Message.h>
35#include <Point.h>
36
37
38namespace WebCore {
39
40PlatformWheelEvent::PlatformWheelEvent(BMessage* message)
41    : m_granularity(ScrollByPixelWheelEvent)
42    , m_shiftKey(false)
43    , m_ctrlKey(false)
44    , m_altKey(false)
45    , m_metaKey(false)
46    , m_isAccepted(false)
47{
48    m_position = IntPoint(message->FindPoint("position"));
49    m_globalPosition = IntPoint(message->FindPoint("global_position"));
50
51    m_deltaX = message->FindFloat("be:wheel_delta_x");
52    m_deltaY = message->FindFloat("be:wheel_delta_y");
53
54    m_wheelTicksX = m_deltaX;
55    m_wheelTicksY = m_deltaY;
56
57    m_deltaX *= -Scrollbar::pixelsPerLineStep();
58    m_deltaY *= -Scrollbar::pixelsPerLineStep();
59}
60
61} // namespace WebCore
62
63