Code drop from //branches/cupcake/...@124589

1 files changed, 97 insertions, 0 deletions

diff --git a/WebCore/rendering/RenderMarquee.h b/WebCore/rendering/RenderMarquee.h
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+++ b/WebCore/rendering/RenderMarquee.h
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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