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
|
/***************************************************************************
* Copyright (C) 2005 Tobi Vollebregt *
* tobivollebregt@gmail.com *
* *
* Copyright (C) 2005 by Joe Ferris *
* jferris@optimistictech.com *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#ifndef CALCULATORCATALOG_H
#define CALCULATORCATALOG_H
#include <kgenericfactory.h>
#include <qmap.h>
#include <qptrlist.h>
#include <qstring.h>
#include <qvaluevector.h>
#include "expression.h"
#include "katapultcatalog.h"
class QWidget;
typedef double (*FunPtr)(double);
/**
@author Tobi Vollebregt
*/
class CalculatorCatalog : public KatapultCatalog
{
Q_OBJECT
public:
struct ParserControl {
const char* expression;
CalculatorCatalog* catalog;
bool assignments; //are assignments enabled?
double result;
};
struct Function {
const char* name;
int length;
FunPtr fptr;
};
CalculatorCatalog(QObject*, const char*, const QStringList&);
virtual ~CalculatorCatalog();
//virtual void initialize();
virtual void readSettings(KConfigBase*);
virtual void writeSettings(KConfigBase*);
virtual QWidget* configure();
int getVarID(const char*);
double getVar(int) const;
double setVar(int, double);
int fracDigits() const;
bool scientific() const;
bool degrees() const;
bool clipboard() const;
QString formatString() const;
const Function* functionTable() const;
protected:
virtual void queryChanged();
private:
typedef QMap<QString, int> VarNameToIdMap;
typedef QValueVector<double> VarIdToValueVector;
static const Function radiansFunctionTable[];
static const Function degreesFunctionTable[];
void reset();
bool accepts(const QString&) const;
Expression _result; // The one result (there's always one).
VarNameToIdMap varNameToId; // Maps strings to IDs.
VarIdToValueVector varIdToValue; // Maps IDs to values.
QString _pendingVarName; // Pending while rest of assignment is parsed.
int _fracDigits; // Number of fractional digits.
bool _bScientific; // Normal or scientific mode?
bool _bDegrees; // Radians or degrees?
bool _bClipboard; // Copy to clipboard?
QString _formatString; // for clipboard copy
private slots:
void fracDigitsChanged(int);
void scientificChanged(bool);
void degreesChanged(bool);
void clipboardChanged(bool);
void formatStringChanged(const QString&);
};
/* from parser.y / parser.cpp: */
int yyparse(CalculatorCatalog::ParserControl*);
#endif
|