| /* |
| * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. 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. |
| */ |
| |
| #include "config.h" |
| #include "core/rendering/RenderLayerReflectionInfo.h" |
| |
| #include "core/frame/UseCounter.h" |
| #include "core/rendering/RenderLayer.h" |
| #include "core/rendering/RenderReplica.h" |
| #include "core/rendering/style/RenderStyle.h" |
| #include "platform/transforms/ScaleTransformOperation.h" |
| #include "platform/transforms/TranslateTransformOperation.h" |
| |
| #include "wtf/RefPtr.h" |
| |
| namespace blink { |
| |
| RenderLayerReflectionInfo::RenderLayerReflectionInfo(RenderBox& renderer) |
| : m_box(renderer) |
| , m_isPaintingInsideReflection(false) |
| { |
| UseCounter::count(box().document(), UseCounter::Reflection); |
| |
| m_reflection = RenderReplica::createAnonymous(&box().document()); |
| m_reflection->setParent(m_box); // We create a 1-way connection. |
| } |
| |
| void RenderLayerReflectionInfo::destroy() |
| { |
| if (!m_reflection->documentBeingDestroyed()) |
| m_reflection->removeLayers(box().layer()); |
| |
| m_reflection->setParent(0); |
| m_reflection->destroy(); |
| m_reflection = nullptr; |
| } |
| |
| void RenderLayerReflectionInfo::trace(Visitor* visitor) |
| { |
| visitor->trace(m_box); |
| visitor->trace(m_reflection); |
| } |
| |
| RenderLayer* RenderLayerReflectionInfo::reflectionLayer() const |
| { |
| return m_reflection->layer(); |
| } |
| |
| void RenderLayerReflectionInfo::updateAfterStyleChange(const RenderStyle* oldStyle) |
| { |
| RefPtr<RenderStyle> newStyle = RenderStyle::create(); |
| newStyle->inheritFrom(box().style()); |
| |
| // Map in our transform. |
| TransformOperations transform; |
| switch (box().style()->boxReflect()->direction()) { |
| case ReflectionBelow: |
| transform.operations().append(TranslateTransformOperation::create(Length(0, Fixed), |
| Length(100., Percent), TransformOperation::Translate)); |
| transform.operations().append(TranslateTransformOperation::create(Length(0, Fixed), |
| box().style()->boxReflect()->offset(), TransformOperation::Translate)); |
| transform.operations().append(ScaleTransformOperation::create(1.0, -1.0, ScaleTransformOperation::Scale)); |
| break; |
| |
| case ReflectionAbove: |
| transform.operations().append(ScaleTransformOperation::create(1.0, -1.0, ScaleTransformOperation::Scale)); |
| transform.operations().append(TranslateTransformOperation::create(Length(0, Fixed), |
| Length(100., Percent), TransformOperation::Translate)); |
| transform.operations().append(TranslateTransformOperation::create(Length(0, Fixed), |
| box().style()->boxReflect()->offset(), TransformOperation::Translate)); |
| break; |
| |
| case ReflectionRight: |
| transform.operations().append(TranslateTransformOperation::create(Length(100., Percent), |
| Length(0, Fixed), TransformOperation::Translate)); |
| transform.operations().append(TranslateTransformOperation::create( |
| box().style()->boxReflect()->offset(), Length(0, Fixed), TransformOperation::Translate)); |
| transform.operations().append(ScaleTransformOperation::create(-1.0, 1.0, ScaleTransformOperation::Scale)); |
| break; |
| |
| case ReflectionLeft: |
| transform.operations().append(ScaleTransformOperation::create(-1.0, 1.0, ScaleTransformOperation::Scale)); |
| transform.operations().append(TranslateTransformOperation::create(Length(100., Percent), |
| Length(0, Fixed), TransformOperation::Translate)); |
| transform.operations().append(TranslateTransformOperation::create( |
| box().style()->boxReflect()->offset(), Length(0, Fixed), TransformOperation::Translate)); |
| break; |
| } |
| newStyle->setTransform(transform); |
| |
| // Map in our mask. |
| newStyle->setMaskBoxImage(box().style()->boxReflect()->mask()); |
| |
| m_reflection->setStyle(newStyle.release()); |
| } |
| |
| void RenderLayerReflectionInfo::paint(GraphicsContext* context, const LayerPaintingInfo& paintingInfo, PaintLayerFlags flags) |
| { |
| if (m_isPaintingInsideReflection) |
| return; |
| |
| // Mark that we are now inside replica painting. |
| m_isPaintingInsideReflection = true; |
| reflectionLayer()->paintLayer(context, paintingInfo, flags); |
| m_isPaintingInsideReflection = false; |
| } |
| |
| String RenderLayerReflectionInfo::debugName() const |
| { |
| return box().debugName() + " (reflection)"; |
| } |
| |
| } // namespace blink |