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61 lines
2.2 KiB
C++
61 lines
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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Author:
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Eric D Vaughan
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**/
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#ifndef nsGridRowLayout_h___
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#define nsGridRowLayout_h___
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#include "mozilla/Attributes.h"
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#include "nsSprocketLayout.h"
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#include "nsIGridPart.h"
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class nsGridRowGroupLayout;
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class nsGridLayout2;
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class nsBoxLayoutState;
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class nsGrid;
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/**
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* A common base class for nsGridRowLeafLayout (the nsBoxLayout object
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* for a grid row or column) and nsGridRowGroupLayout (the nsBoxLayout
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* object for a grid row group or column group).
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*/
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// XXXldb This needs a name that indicates that it's a base class for
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// both row and rows (row-group).
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class nsGridRowLayout : public nsSprocketLayout,
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public nsIGridPart
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{
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public:
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NS_DECL_ISUPPORTS_INHERITED
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virtual nsGridRowGroupLayout* CastToRowGroupLayout() MOZ_OVERRIDE { return nullptr; }
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virtual nsGridLayout2* CastToGridLayout() MOZ_OVERRIDE { return nullptr; }
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virtual nsGrid* GetGrid(nsIFrame* aBox, int32_t* aIndex, nsGridRowLayout* aRequestor=nullptr) MOZ_OVERRIDE;
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virtual nsIGridPart* GetParentGridPart(nsIFrame* aBox, nsIFrame** aParentBox) MOZ_OVERRIDE;
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virtual void ChildrenInserted(nsIFrame* aBox, nsBoxLayoutState& aState,
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nsIFrame* aPrevBox,
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const nsFrameList::Slice& aNewChildren) MOZ_OVERRIDE;
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virtual void ChildrenAppended(nsIFrame* aBox, nsBoxLayoutState& aState,
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const nsFrameList::Slice& aNewChildren) MOZ_OVERRIDE;
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virtual void ChildrenRemoved(nsIFrame* aBox, nsBoxLayoutState& aState, nsIFrame* aChildList) MOZ_OVERRIDE;
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virtual void ChildrenSet(nsIFrame* aBox, nsBoxLayoutState& aState, nsIFrame* aChildList) MOZ_OVERRIDE;
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virtual nsMargin GetTotalMargin(nsIFrame* aBox, bool aIsHorizontal) MOZ_OVERRIDE;
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virtual nsIGridPart* AsGridPart() MOZ_OVERRIDE { return this; }
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protected:
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virtual void ChildAddedOrRemoved(nsIFrame* aBox, nsBoxLayoutState& aState)=0;
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nsGridRowLayout();
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virtual ~nsGridRowLayout();
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};
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#endif
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