1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
/*************************************************************************
*
* $RCSfile: recursionhelper.hxx,v $
*
* $Revision: 1.2 $
*
* last change: $Author: vg $ $Date: 2005-03-08 11:28:21 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2004 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (the "License"); You may not use this file
* except in compliance with the License. You may obtain a copy of the
* License at http://www.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2005 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#ifndef INCLUDED_RECURSIONHELPER_HXX
#define INCLUDED_RECURSIONHELPER_HXX
#include <list>
#include <stack>
#include <tools/solar.h>
class ScFormulaCell;
struct ScFormulaRecursionEntry
{
ScFormulaCell* pCell;
BOOL bOldRunning;
double fPreviousResult;
ScFormulaRecursionEntry( ScFormulaCell* p, BOOL b, double f ) : pCell(p),
bOldRunning(b),
fPreviousResult(f)
{}
};
typedef ::std::list< ScFormulaRecursionEntry > ScFormulaRecursionList;
class ScRecursionHelper
{
typedef ::std::stack< ScFormulaCell* > ScRecursionInIterationStack;
ScFormulaRecursionList aRecursionFormulas;
ScFormulaRecursionList::iterator aInsertPos;
ScFormulaRecursionList::iterator aLastIterationStart;
ScRecursionInIterationStack aRecursionInIterationStack;
USHORT nRecursionCount;
USHORT nIteration;
bool bInRecursionReturn;
bool bDoingRecursion;
bool bInIterationReturn;
bool bConverging;
void Init()
{
nRecursionCount = 0;
bInRecursionReturn = bDoingRecursion = bInIterationReturn = false;
aInsertPos = GetEnd();
ResetIteration();
}
void ResetIteration()
{
aLastIterationStart = GetEnd();
nIteration = 0;
bConverging = false;
}
public:
ScRecursionHelper() { Init(); }
USHORT GetRecursionCount() const { return nRecursionCount; }
void IncRecursionCount() { ++nRecursionCount; }
void DecRecursionCount() { --nRecursionCount; }
/// A pure recursion return, no iteration.
bool IsInRecursionReturn() const { return bInRecursionReturn &&
!bInIterationReturn; }
void SetInRecursionReturn( bool b )
{
// Do not use IsInRecursionReturn() here, it decouples iteration.
if (b && !bInRecursionReturn)
aInsertPos = aRecursionFormulas.begin();
bInRecursionReturn = b;
}
bool IsDoingRecursion() const { return bDoingRecursion; }
void SetDoingRecursion( bool b ) { bDoingRecursion = b; }
void Insert( ScFormulaCell* p, BOOL bOldRunning, double fResult )
{
aRecursionFormulas.insert( aInsertPos, ScFormulaRecursionEntry( p,
bOldRunning, fResult));
}
ScFormulaRecursionList::iterator GetStart()
{
return aRecursionFormulas.begin();
}
ScFormulaRecursionList::iterator GetEnd()
{
return aRecursionFormulas.end();
}
bool IsInIterationReturn() const { return bInIterationReturn; }
void SetInIterationReturn( bool b )
{
// An iteration return is always coupled to a recursion return.
SetInRecursionReturn( b);
bInIterationReturn = b;
}
bool IsDoingIteration() const { return nIteration > 0; }
USHORT GetIteration() const { return nIteration; }
bool & GetConvergingReference() { return bConverging; }
void StartIteration()
{
SetInIterationReturn( false);
nIteration = 1;
bConverging = false;
aLastIterationStart = GetIterationStart();
}
void ResumeIteration()
{
SetInIterationReturn( false);
aLastIterationStart = GetIterationStart();
}
void IncIteration() { ++nIteration; }
void EndIteration()
{
aRecursionFormulas.erase( GetIterationStart(), GetIterationEnd());
ResetIteration();
}
ScFormulaRecursionList::iterator GetLastIterationStart() { return aLastIterationStart; }
ScFormulaRecursionList::iterator GetIterationStart() { return GetStart(); }
ScFormulaRecursionList::iterator GetIterationEnd() { return GetEnd(); }
/** Any return, recursion or iteration, iteration is always coupled with
recursion. */
bool IsInReturn() const { return bInRecursionReturn; }
const ScFormulaRecursionList& GetList() const { return aRecursionFormulas; }
ScFormulaRecursionList& GetList() { return aRecursionFormulas; }
ScRecursionInIterationStack& GetRecursionInIterationStack() { return aRecursionInIterationStack; }
void Clear()
{
aRecursionFormulas.clear();
while (!aRecursionInIterationStack.empty())
aRecursionInIterationStack.pop();
Init();
}
};
#endif // INCLUDED_RECURSIONHELPER_HXX
|
