1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : // vim:cindent:ts=4:et:sw=4:
3 : /* ***** BEGIN LICENSE BLOCK *****
4 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
5 : *
6 : * The contents of this file are subject to the Mozilla Public License Version
7 : * 1.1 (the "License"); you may not use this file except in compliance with
8 : * the License. You may obtain a copy of the License at
9 : * http://www.mozilla.org/MPL/
10 : *
11 : * Software distributed under the License is distributed on an "AS IS" basis,
12 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13 : * for the specific language governing rights and limitations under the
14 : * License.
15 : *
16 : * The Original Code is Mozilla's table layout code.
17 : *
18 : * The Initial Developer of the Original Code is the Mozilla Foundation.
19 : * Portions created by the Initial Developer are Copyright (C) 2006
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : * L. David Baron <dbaron@dbaron.org> (original author)
24 : *
25 : * Alternatively, the contents of this file may be used under the terms of
26 : * either the GNU General Public License Version 2 or later (the "GPL"), or
27 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
28 : * in which case the provisions of the GPL or the LGPL are applicable instead
29 : * of those above. If you wish to allow use of your version of this file only
30 : * under the terms of either the GPL or the LGPL, and not to allow others to
31 : * use your version of this file under the terms of the MPL, indicate your
32 : * decision by deleting the provisions above and replace them with the notice
33 : * and other provisions required by the GPL or the LGPL. If you do not delete
34 : * the provisions above, a recipient may use your version of this file under
35 : * the terms of any one of the MPL, the GPL or the LGPL.
36 : *
37 : * ***** END LICENSE BLOCK ***** */
38 :
39 : /*
40 : * interface for the set of algorithms that determine column and table
41 : * widths
42 : */
43 :
44 : #ifndef nsITableLayoutStrategy_h_
45 : #define nsITableLayoutStrategy_h_
46 :
47 : #include "nscore.h"
48 : #include "nsCoord.h"
49 :
50 : class nsRenderingContext;
51 : struct nsHTMLReflowState;
52 :
53 : class nsITableLayoutStrategy
54 : {
55 : public:
56 0 : virtual ~nsITableLayoutStrategy() {}
57 :
58 : /** Implement nsIFrame::GetMinWidth for the table */
59 : virtual nscoord GetMinWidth(nsRenderingContext* aRenderingContext) = 0;
60 :
61 : /** Implement nsIFrame::GetPrefWidth for the table */
62 : virtual nscoord GetPrefWidth(nsRenderingContext* aRenderingContext,
63 : bool aComputingSize) = 0;
64 :
65 : /** Implement nsIFrame::MarkIntrinsicWidthsDirty for the table */
66 : virtual void MarkIntrinsicWidthsDirty() = 0;
67 :
68 : /**
69 : * Compute final column widths based on the intrinsic width data and
70 : * the available width.
71 : */
72 : virtual void ComputeColumnWidths(const nsHTMLReflowState& aReflowState) = 0;
73 :
74 : /**
75 : * Return the type of table layout strategy, without the cost of
76 : * a virtual function call
77 : */
78 : enum Type { Auto, Fixed };
79 0 : Type GetType() const { return mType; }
80 :
81 : protected:
82 0 : nsITableLayoutStrategy(Type aType) : mType(aType) {}
83 : private:
84 : Type mType;
85 : };
86 :
87 : #endif /* !defined(nsITableLayoutStrategy_h_) */
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