gecko/layout/xul/grid/nsGridLayout2.h

81 lines
3.2 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsGridLayout2_h___
#define nsGridLayout2_h___
#include "mozilla/Attributes.h"
#include "nsStackLayout.h"
#include "nsIGridPart.h"
#include "nsCoord.h"
#include "nsGrid.h"
class nsIPresContext;
class nsGridRowGroupLayout;
class nsGridRowLayout;
class nsGridRow;
class nsBoxLayoutState;
class nsGridCell;
/**
* The nsBoxLayout implementation for a grid.
*/
class nsGridLayout2 MOZ_FINAL : public nsStackLayout,
public nsIGridPart
{
public:
friend nsresult NS_NewGridLayout2(nsIPresShell* aPresShell, nsBoxLayout** aNewLayout);
NS_DECL_ISUPPORTS_INHERITED
NS_IMETHOD Layout(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
virtual void IntrinsicISizesDirty(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
virtual nsGridRowGroupLayout* CastToRowGroupLayout() MOZ_OVERRIDE { return nullptr; }
virtual nsGridLayout2* CastToGridLayout() MOZ_OVERRIDE { return this; }
virtual nsGrid* GetGrid(nsIFrame* aBox, int32_t* aIndex, nsGridRowLayout* aRequestor=nullptr) MOZ_OVERRIDE;
virtual nsIGridPart* GetParentGridPart(nsIFrame* aBox, nsIFrame** aParentBox) MOZ_OVERRIDE {
NS_NOTREACHED("Should not be called"); return nullptr;
}
virtual nsSize GetMinSize(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
virtual nsSize GetMaxSize(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
virtual nsSize GetPrefSize(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
virtual void CountRowsColumns(nsIFrame* aBox, int32_t& aRowCount, int32_t& aComputedColumnCount) MOZ_OVERRIDE { aRowCount++; }
virtual void DirtyRows(nsIFrame* aBox, nsBoxLayoutState& aState) MOZ_OVERRIDE { }
virtual int32_t BuildRows(nsIFrame* aBox, nsGridRow* aRows) MOZ_OVERRIDE;
virtual nsMargin GetTotalMargin(nsIFrame* aBox, bool aIsHorizontal) MOZ_OVERRIDE;
virtual Type GetType() MOZ_OVERRIDE { return eGrid; }
virtual void ChildrenInserted(nsIFrame* aBox, nsBoxLayoutState& aState,
nsIFrame* aPrevBox,
const nsFrameList::Slice& aNewChildren) MOZ_OVERRIDE;
virtual void ChildrenAppended(nsIFrame* aBox, nsBoxLayoutState& aState,
const nsFrameList::Slice& aNewChildren) MOZ_OVERRIDE;
virtual void ChildrenRemoved(nsIFrame* aBox, nsBoxLayoutState& aState,
nsIFrame* aChildList) MOZ_OVERRIDE;
virtual void ChildrenSet(nsIFrame* aBox, nsBoxLayoutState& aState,
nsIFrame* aChildList) MOZ_OVERRIDE;
virtual nsIGridPart* AsGridPart() MOZ_OVERRIDE { return this; }
static void AddOffset(nsBoxLayoutState& aState, nsIFrame* aChild, nsSize& aSize);
protected:
explicit nsGridLayout2(nsIPresShell* aShell);
virtual ~nsGridLayout2();
nsGrid mGrid;
private:
void AddWidth(nsSize& aSize, nscoord aSize2, bool aIsHorizontal);
}; // class nsGridLayout2
#endif