1 /* 2 * Copyright (C) 2004, 2006 Apple Computer, Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #import "config.h" 27 #import "PlatformWheelEvent.h" 28 29 #import "PlatformMouseEvent.h" 30 #import "Scrollbar.h" 31 #import "WebCoreSystemInterface.h" 32 33 namespace WebCore { 34 35 PlatformWheelEvent::PlatformWheelEvent(NSEvent* event, NSView *windowView) 36 : m_position(pointForEvent(event, windowView)) 37 , m_globalPosition(globalPointForEvent(event)) 38 , m_granularity(ScrollByPixelWheelEvent) 39 , m_isAccepted(false) 40 , m_shiftKey([event modifierFlags] & NSShiftKeyMask) 41 , m_ctrlKey([event modifierFlags] & NSControlKeyMask) 42 , m_altKey([event modifierFlags] & NSAlternateKeyMask) 43 , m_metaKey([event modifierFlags] & NSCommandKeyMask) 44 { 45 BOOL continuous; 46 wkGetWheelEventDeltas(event, &m_deltaX, &m_deltaY, &continuous); 47 if (continuous) { 48 m_wheelTicksX = m_deltaX / static_cast<float>(Scrollbar::pixelsPerLineStep()); 49 m_wheelTicksY = m_deltaY / static_cast<float>(Scrollbar::pixelsPerLineStep()); 50 } else { 51 m_wheelTicksX = m_deltaX; 52 m_wheelTicksY = m_deltaY; 53 m_deltaX *= static_cast<float>(Scrollbar::pixelsPerLineStep()); 54 m_deltaY *= static_cast<float>(Scrollbar::pixelsPerLineStep()); 55 } 56 } 57 58 } // namespace WebCore 59
