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authorThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:41 -0800
committerThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:41 -0800
commit648161bb0edfc3d43db63caed5cc5213bc6cb78f (patch)
tree4b825dc642cb6eb9a060e54bf8d69288fbee4904 /WebCore/rendering/RenderMarquee.h
parenta65af38181ac7d34544586bdb5cd004de93897ad (diff)
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-/*
- * 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 "RenderStyle.h"
-#include "Timer.h"
-
-namespace WebCore {
-
-class RenderLayer;
-
-// This class handles the auto-scrolling of layers with overflow: marquee.
-class RenderMarquee {
-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