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6 : * 1.1 (the "License"); you may not use this file except in compliance with
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14 : *
15 : * The Original Code is Mozilla Communicator client code.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * Netscape Communications Corporation.
19 : * Portions created by the Initial Developer are Copyright (C) 1998
20 : * the Initial Developer. All Rights Reserved.
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22 : * Contributor(s):
23 : *
24 : * Alternatively, the contents of this file may be used under the terms of
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37 :
38 : /**
39 :
40 : Author:
41 : Eric D Vaughan
42 :
43 : **/
44 :
45 : #ifndef nsGridRowLayout_h___
46 : #define nsGridRowLayout_h___
47 :
48 : #include "nsSprocketLayout.h"
49 : #include "nsIGridPart.h"
50 : class nsGridRowGroupLayout;
51 : class nsGridLayout2;
52 : class nsBoxLayoutState;
53 : class nsGrid;
54 :
55 : /**
56 : * A common base class for nsGridRowLeafLayout (the nsBoxLayout object
57 : * for a grid row or column) and nsGridRowGroupLayout (the nsBoxLayout
58 : * object for a grid row group or column group).
59 : */
60 : // XXXldb This needs a name that indicates that it's a base class for
61 : // both row and rows (row-group).
62 : class nsGridRowLayout : public nsSprocketLayout,
63 : public nsIGridPart
64 : {
65 : public:
66 : NS_DECL_ISUPPORTS_INHERITED
67 :
68 : virtual nsGridRowGroupLayout* CastToRowGroupLayout() { return nsnull; }
69 0 : virtual nsGridLayout2* CastToGridLayout() { return nsnull; }
70 : virtual nsGrid* GetGrid(nsIBox* aBox, PRInt32* aIndex, nsGridRowLayout* aRequestor=nsnull);
71 : virtual nsIGridPart* GetParentGridPart(nsIBox* aBox, nsIBox** aParentBox);
72 : virtual void ChildrenInserted(nsIBox* aBox, nsBoxLayoutState& aState,
73 : nsIBox* aPrevBox,
74 : const nsFrameList::Slice& aNewChildren);
75 : virtual void ChildrenAppended(nsIBox* aBox, nsBoxLayoutState& aState,
76 : const nsFrameList::Slice& aNewChildren);
77 : virtual void ChildrenRemoved(nsIBox* aBox, nsBoxLayoutState& aState, nsIBox* aChildList);
78 : virtual void ChildrenSet(nsIBox* aBox, nsBoxLayoutState& aState, nsIBox* aChildList);
79 : virtual nsMargin GetTotalMargin(nsIBox* aBox, bool aIsHorizontal);
80 :
81 0 : virtual nsIGridPart* AsGridPart() { return this; }
82 :
83 : protected:
84 : virtual void ChildAddedOrRemoved(nsIBox* aBox, nsBoxLayoutState& aState)=0;
85 :
86 : nsGridRowLayout();
87 : };
88 :
89 : #endif
90 :
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