| /* |
| * 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 RenderLayerBlendInfo_h |
| #define RenderLayerBlendInfo_h |
| |
| #include "public/platform/WebBlendMode.h" |
| #include "wtf/Assertions.h" |
| #include "wtf/Noncopyable.h" |
| |
| namespace WebCore { |
| |
| class RenderLayerModelObject; |
| |
| class RenderLayerBlendInfo { |
| WTF_MAKE_NONCOPYABLE(RenderLayerBlendInfo); |
| public: |
| explicit RenderLayerBlendInfo(RenderLayerModelObject&); |
| |
| bool hasBlendMode() const; |
| void updateBlendMode(); |
| |
| bool childLayerHasBlendMode() const |
| { |
| ASSERT(!m_childLayerHasBlendModeStatusDirty); |
| return m_childLayerHasBlendMode; |
| } |
| bool childLayerHasBlendModeWhileDirty() const { return m_childLayerHasBlendMode; } |
| |
| void setChildLayerHasBlendMode(bool b) { m_childLayerHasBlendMode = b; } |
| |
| bool childLayerHasBlendModeStatusDirty() const { return m_childLayerHasBlendModeStatusDirty; } |
| void setChildLayerHasBlendModeStatusDirty(bool b) { m_childLayerHasBlendModeStatusDirty = b; } |
| |
| void setAncestorChainBlendedDescendant(); |
| void dirtyAncestorChainBlendedDescendantStatus(); |
| |
| blink::WebBlendMode blendMode() const { return m_blendMode; } |
| |
| private: |
| RenderLayerModelObject& m_renderer; |
| blink::WebBlendMode m_blendMode; |
| |
| unsigned m_childLayerHasBlendMode : 1; |
| unsigned m_childLayerHasBlendModeStatusDirty : 1; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // RenderLayerBlendInfo_h |