/* | |
* Copyright (C) 2003 Apple Computer, Inc. | |
* | |
* Portions are Copyright (C) 1998 Netscape Communications Corporation. | |
* | |
* Other contributors: | |
* Robert O'Callahan <roc+@cs.cmu.edu> | |
* David Baron <dbaron@fas.harvard.edu> | |
* Christian Biesinger <cbiesinger@web.de> | |
* Randall Jesup <rjesup@wgate.com> | |
* Roland Mainz <roland.mainz@informatik.med.uni-giessen.de> | |
* Josh Soref <timeless@mac.com> | |
* Boris Zbarsky <bzbarsky@mit.edu> | |
* | |
* This library is free software; you can redistribute it and/or | |
* modify it under the terms of the GNU Lesser General Public | |
* License as published by the Free Software Foundation; either | |
* version 2.1 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 | |
* Lesser General Public License for more details. | |
* | |
* You should have received a copy of the GNU Lesser General Public | |
* License along with this library; if not, write to the Free Software | |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
* | |
* Alternatively, the contents of this file may be used under the terms | |
* of either the Mozilla Public License Version 1.1, found at | |
* http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public | |
* License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html | |
* (the "GPL"), in which case the provisions of the MPL or the GPL are | |
* applicable instead of those above. If you wish to allow use of your | |
* version of this file only under the terms of one of those two | |
* licenses (the MPL or the GPL) and not to allow others to use your | |
* version of this file under the LGPL, indicate your decision by | |
* deletingthe provisions above and replace them with the notice and | |
* other provisions required by the MPL or the GPL, as the case may be. | |
* If you do not delete the provisions above, a recipient may use your | |
* version of this file under any of the LGPL, the MPL or the GPL. | |
*/ | |
#ifndef RenderMarquee_h | |
#define RenderMarquee_h | |
#include "Length.h" | |
#include "RenderStyleConstants.h" | |
#include "Timer.h" | |
namespace WebCore { | |
class RenderLayer; | |
// This class handles the auto-scrolling of layers with overflow: marquee. | |
class RenderMarquee : public Noncopyable { | |
public: | |
RenderMarquee(RenderLayer*); | |
int speed() const { return m_speed; } | |
int marqueeSpeed() const; | |
EMarqueeDirection reverseDirection() const { return static_cast<EMarqueeDirection>(-direction()); } | |
EMarqueeDirection direction() const; | |
bool isHorizontal() const; | |
int computePosition(EMarqueeDirection, bool stopAtClientEdge); | |
void setEnd(int end) { m_end = end; } | |
void start(); | |
void suspend(); | |
void stop(); | |
void updateMarqueeStyle(); | |
void updateMarqueePosition(); | |
private: | |
void timerFired(Timer<RenderMarquee>*); | |
RenderLayer* m_layer; | |
int m_currentLoop; | |
int m_totalLoops; | |
Timer<RenderMarquee> m_timer; | |
int m_start; | |
int m_end; | |
int m_speed; | |
Length m_height; | |
bool m_reset: 1; | |
bool m_suspended : 1; | |
bool m_stopped : 1; | |
EMarqueeDirection m_direction : 4; | |
}; | |
} // namespace WebCore | |
#endif // RenderMarquee_h |