2 * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved.
3 * Copyright (C) 2013 Intel Corporation. All rights reserved.
5 * Portions are Copyright (C) 1998 Netscape Communications Corporation.
8 * Robert O'Callahan <roc+@cs.cmu.edu>
9 * David Baron <dbaron@fas.harvard.edu>
10 * Christian Biesinger <cbiesinger@web.de>
11 * Randall Jesup <rjesup@wgate.com>
12 * Roland Mainz <roland.mainz@informatik.med.uni-giessen.de>
13 * Josh Soref <timeless@mac.com>
14 * Boris Zbarsky <bzbarsky@mit.edu>
16 * This library is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU Lesser General Public
18 * License as published by the Free Software Foundation; either
19 * version 2.1 of the License, or (at your option) any later version.
21 * This library is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
24 * Lesser General Public License for more details.
26 * You should have received a copy of the GNU Lesser General Public
27 * License along with this library; if not, write to the Free Software
28 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
30 * Alternatively, the contents of this file may be used under the terms
31 * of either the Mozilla Public License Version 1.1, found at
32 * http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public
33 * License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html
34 * (the "GPL"), in which case the provisions of the MPL or the GPL are
35 * applicable instead of those above. If you wish to allow use of your
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41 * If you do not delete the provisions above, a recipient may use your
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45 #ifndef RenderLayerRepainter_h
46 #define RenderLayerRepainter_h
48 #include "platform/geometry/LayoutRect.h"
49 #include "wtf/Noncopyable.h"
54 NeedsNormalRepaint = 0,
55 NeedsFullRepaint = 1 << 0,
56 NeedsFullRepaintForPositionedMovementLayout = NeedsFullRepaint | 1 << 1
59 class RenderGeometryMap;
61 class RenderLayerModelObject;
63 class RenderLayerRepainter {
64 WTF_MAKE_NONCOPYABLE(RenderLayerRepainter);
66 RenderLayerRepainter(RenderLayerModelObject*);
68 // Return a cached repaint rect, computed relative to the layer renderer's containerForRepaint.
69 LayoutRect repaintRect() const { return m_repaintRect; }
70 LayoutRect repaintRectIncludingNonCompositingDescendants() const;
72 void repaintAfterLayout(RenderGeometryMap*, bool shouldCheckForRepaint);
73 void repaintIncludingNonCompositingDescendants(RenderLayerModelObject* repaintContainer);
74 void repaintIncludingDescendants();
76 void setRepaintStatus(RepaintStatus status) { m_repaintStatus = status; }
78 void computeRepaintRects(const RenderLayerModelObject* repaintContainer, const RenderGeometryMap* = 0);
79 void computeRepaintRectsIncludingDescendants();
81 // Indicate that the layer contents need to be repainted. Only has an effect
82 // if layer compositing is being used,
83 void setBackingNeedsRepaint();
84 void setBackingNeedsRepaintInRect(const LayoutRect&); // r is in the coordinate space of the layer's render object
86 void setFilterBackendNeedsRepaintingInRect(const LayoutRect&);
89 bool shouldRepaintLayer() const;
91 void clearRepaintRects();
93 RenderLayer* enclosingFilterRepaintLayer() const;
95 RenderLayerModelObject* m_renderer;
97 unsigned m_repaintStatus; // RepaintStatus
99 LayoutRect m_repaintRect; // Cached repaint rects. Used by layout.
100 LayoutRect m_outlineBox;
103 } // namespace WebCore
105 #endif // RenderLayerRepainter_h