1 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
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.
21 : *
22 : * Contributor(s):
23 : *
24 : * Alternatively, the contents of this file may be used under the terms of
25 : * either of the GNU General Public License Version 2 or later (the "GPL"),
26 : * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
27 : * in which case the provisions of the GPL or the LGPL are applicable instead
28 : * of those above. If you wish to allow use of your version of this file only
29 : * under the terms of either the GPL or the LGPL, and not to allow others to
30 : * use your version of this file under the terms of the MPL, indicate your
31 : * decision by deleting the provisions above and replace them with the notice
32 : * and other provisions required by the GPL or the LGPL. If you do not delete
33 : * the provisions above, a recipient may use your version of this file under
34 : * the terms of any one of the MPL, the GPL or the LGPL.
35 : *
36 : * ***** END LICENSE BLOCK ***** */
37 :
38 : //
39 : // Eric Vaughan
40 : // Netscape Communications
41 : //
42 : // See documentation in associated header file
43 : //
44 :
45 : #include "nsGridCell.h"
46 : #include "nsFrame.h"
47 : #include "nsBox.h"
48 : #include "nsGridLayout2.h"
49 :
50 :
51 0 : nsGridCell::nsGridCell():mBoxInColumn(nsnull),mBoxInRow(nsnull)
52 : {
53 0 : MOZ_COUNT_CTOR(nsGridCell);
54 0 : }
55 :
56 0 : nsGridCell::~nsGridCell()
57 : {
58 0 : MOZ_COUNT_DTOR(nsGridCell);
59 0 : }
60 :
61 : nsSize
62 0 : nsGridCell::GetPrefSize(nsBoxLayoutState& aState)
63 : {
64 0 : nsSize sum(0,0);
65 :
66 : // take our 2 children and add them up.
67 : // we are as wide as the widest child plus its left offset
68 : // we are tall as the tallest child plus its top offset
69 :
70 0 : if (mBoxInColumn) {
71 0 : nsSize pref = mBoxInColumn->GetPrefSize(aState);
72 :
73 0 : nsBox::AddMargin(mBoxInColumn, pref);
74 0 : nsGridLayout2::AddOffset(aState, mBoxInColumn, pref);
75 :
76 0 : nsBoxLayout::AddLargestSize(sum, pref);
77 : }
78 :
79 0 : if (mBoxInRow) {
80 0 : nsSize pref = mBoxInRow->GetPrefSize(aState);
81 :
82 0 : nsBox::AddMargin(mBoxInRow, pref);
83 0 : nsGridLayout2::AddOffset(aState, mBoxInRow, pref);
84 :
85 0 : nsBoxLayout::AddLargestSize(sum, pref);
86 : }
87 :
88 : return sum;
89 : }
90 :
91 : nsSize
92 0 : nsGridCell::GetMinSize(nsBoxLayoutState& aState)
93 : {
94 0 : nsSize sum(0, 0);
95 :
96 : // take our 2 children and add them up.
97 : // we are as wide as the widest child plus its left offset
98 : // we are tall as the tallest child plus its top offset
99 :
100 0 : if (mBoxInColumn) {
101 0 : nsSize min = mBoxInColumn->GetMinSize(aState);
102 :
103 0 : nsBox::AddMargin(mBoxInColumn, min);
104 0 : nsGridLayout2::AddOffset(aState, mBoxInColumn, min);
105 :
106 0 : nsBoxLayout::AddLargestSize(sum, min);
107 : }
108 :
109 0 : if (mBoxInRow) {
110 0 : nsSize min = mBoxInRow->GetMinSize(aState);
111 :
112 0 : nsBox::AddMargin(mBoxInRow, min);
113 0 : nsGridLayout2::AddOffset(aState, mBoxInRow, min);
114 :
115 0 : nsBoxLayout::AddLargestSize(sum, min);
116 : }
117 :
118 : return sum;
119 : }
120 :
121 : nsSize
122 0 : nsGridCell::GetMaxSize(nsBoxLayoutState& aState)
123 : {
124 0 : nsSize sum(NS_INTRINSICSIZE, NS_INTRINSICSIZE);
125 :
126 : // take our 2 children and add them up.
127 : // we are as wide as the smallest child plus its left offset
128 : // we are tall as the shortest child plus its top offset
129 :
130 0 : if (mBoxInColumn) {
131 0 : nsSize max = mBoxInColumn->GetMaxSize(aState);
132 :
133 0 : nsBox::AddMargin(mBoxInColumn, max);
134 0 : nsGridLayout2::AddOffset(aState, mBoxInColumn, max);
135 :
136 0 : nsBoxLayout::AddSmallestSize(sum, max);
137 : }
138 :
139 0 : if (mBoxInRow) {
140 0 : nsSize max = mBoxInRow->GetMaxSize(aState);
141 :
142 0 : nsBox::AddMargin(mBoxInRow, max);
143 0 : nsGridLayout2::AddOffset(aState, mBoxInRow, max);
144 :
145 0 : nsBoxLayout::AddSmallestSize(sum, max);
146 : }
147 :
148 : return sum;
149 : }
150 :
151 :
152 : bool
153 0 : nsGridCell::IsCollapsed()
154 : {
155 0 : return ((mBoxInColumn && mBoxInColumn->IsCollapsed()) ||
156 0 : (mBoxInRow && mBoxInRow->IsCollapsed()));
157 : }
158 :
159 :
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