| /* |
| * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved. |
| * Copyright (C) 2013 Intel Corporation. All rights reserved. |
| * |
| * 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 RenderLayerRepainter_h |
| #define RenderLayerRepainter_h |
| |
| #include "platform/geometry/LayoutRect.h" |
| #include "wtf/Noncopyable.h" |
| |
| namespace WebCore { |
| |
| enum RepaintStatus { |
| NeedsNormalRepaint = 0, |
| NeedsFullRepaint = 1 << 0, |
| NeedsFullRepaintForPositionedMovementLayout = 1 << 1 |
| }; |
| |
| class RenderGeometryMap; |
| class RenderLayer; |
| class RenderLayerModelObject; |
| |
| class RenderLayerRepainter { |
| WTF_MAKE_NONCOPYABLE(RenderLayerRepainter); |
| public: |
| RenderLayerRepainter(RenderLayerModelObject*); |
| |
| // Return a cached repaint rect, computed relative to the layer renderer's containerForRepaint. |
| LayoutRect repaintRect() const { return m_repaintRect; } |
| LayoutRect repaintRectIncludingNonCompositingDescendants() const; |
| |
| void repaintAfterLayout(RenderGeometryMap*, bool shouldCheckForRepaint); |
| void repaintIncludingNonCompositingDescendants(RenderLayerModelObject* repaintContainer); |
| void repaintIncludingDescendants(); |
| |
| void setRepaintStatus(RepaintStatus status) { m_repaintStatus = status; } |
| |
| void computeRepaintRects(const RenderLayerModelObject* repaintContainer, const RenderGeometryMap* = 0); |
| void computeRepaintRectsIncludingDescendants(); |
| |
| // Indicate that the layer contents need to be repainted. Only has an effect |
| // if layer compositing is being used, |
| void setBackingNeedsRepaint(); |
| void setBackingNeedsRepaintInRect(const LayoutRect&); // r is in the coordinate space of the layer's render object |
| |
| void setFilterBackendNeedsRepaintingInRect(const LayoutRect&); |
| |
| private: |
| bool shouldRepaintAfterLayout() const; |
| |
| void clearRepaintRects(); |
| |
| RenderLayer* enclosingFilterRepaintLayer() const; |
| |
| RenderLayerModelObject* m_renderer; |
| |
| unsigned m_repaintStatus; // RepaintStatus |
| |
| LayoutRect m_repaintRect; // Cached repaint rects. Used by layout. |
| LayoutRect m_outlineBox; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // RenderLayerRepainter_h |