1 /* 2 * Copyright (C) 2001 Peter Kelly (pmk (at) post.com) 3 * Copyright (C) 2001 Tobias Anton (anton (at) stud.fbi.fh-darmstadt.de) 4 * Copyright (C) 2006 Samuel Weinig (sam.weinig (at) gmail.com) 5 * Copyright (C) 2003, 2004, 2005, 2006, 2008 Apple Inc. All rights reserved. 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Library General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Library General Public License for more details. 16 * 17 * You should have received a copy of the GNU Library General Public License 18 * along with this library; see the file COPYING.LIB. If not, write to 19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 20 * Boston, MA 02110-1301, USA. 21 * 22 */ 23 24 #ifndef WheelEvent_h 25 #define WheelEvent_h 26 27 #include "MouseRelatedEvent.h" 28 29 namespace WebCore { 30 31 // extension: mouse wheel event 32 class WheelEvent : public MouseRelatedEvent { 33 public: 34 static PassRefPtr<WheelEvent> create() 35 { 36 return adoptRef(new WheelEvent); 37 } 38 static PassRefPtr<WheelEvent> create(float wheelTicksX, float wheelTicksY, PassRefPtr<AbstractView> view, 39 int screenX, int screenY, int pageX, int pageY, 40 bool ctrlKey, bool altKey, bool shiftKey, bool metaKey) 41 { 42 return adoptRef(new WheelEvent(wheelTicksX, wheelTicksY, view, screenX, screenY, pageX, pageY, 43 ctrlKey, altKey, shiftKey, metaKey)); 44 } 45 46 void initWheelEvent(int wheelDeltaX, int wheelDeltaY, PassRefPtr<AbstractView>, 47 int screenX, int screenY, int pageX, int pageY, 48 bool ctrlKey, bool altKey, bool shiftKey, bool metaKey); 49 50 int wheelDelta() const { if (m_wheelDeltaY == 0) return m_wheelDeltaX; return m_wheelDeltaY; } 51 int wheelDeltaX() const { return m_wheelDeltaX; } 52 int wheelDeltaY() const { return m_wheelDeltaY; } 53 54 // Needed for Objective-C legacy support 55 bool isHorizontal() const { return m_wheelDeltaX; } 56 57 private: 58 WheelEvent(); 59 WheelEvent(float wheelTicksX, float wheelTicksY, PassRefPtr<AbstractView>, 60 int screenX, int screenY, int pageX, int pageY, 61 bool ctrlKey, bool altKey, bool shiftKey, bool metaKey); 62 63 virtual bool isWheelEvent() const; 64 65 int m_wheelDeltaX; 66 int m_wheelDeltaY; 67 }; 68 69 } // namespace WebCore 70 71 #endif // WheelEvent_h 72
