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267 lines
7.9 KiB
267 lines
7.9 KiB
/* This file is part of the KDE project
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Copyright (C) 1998-2002 The KSpread Team
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www.koffice.org/kspread
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Copyright (C) 2005 Tomas Mecir <mecirt@gmail.com>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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// built-in conversion functions
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#include "functions.h"
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#include "valuecalc.h"
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#include "valueconverter.h"
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using namespace KSpread;
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// prototypes
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Value func_arabic (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_carx (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_cary (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_decsex (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_polr (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_pola (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_roman (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_sexdec (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_AsciiToChar (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_CharToAscii (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_inttobool (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_booltoint (valVector args, ValueCalc *calc, FuncExtra *);
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Value func_ToString (valVector args, ValueCalc *calc, FuncExtra *);
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// registers all conversion functions
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void RegisterConversionFunctions()
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{
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FunctionRepository* repo = FunctionRepository::self();
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Function *f;
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f = new Function ("ARABIC", func_arabic);
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repo->add (f);
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f = new Function ("CARX", func_carx);
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f->setParamCount (2);
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repo->add (f);
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f = new Function ("CARY", func_cary);
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f->setParamCount (2);
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repo->add (f);
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f = new Function ("DECSEX", func_decsex);
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repo->add (f);
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f = new Function ("POLR", func_polr);
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f->setParamCount (2);
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repo->add (f);
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f = new Function ("POLA", func_pola);
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f->setParamCount (2);
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repo->add (f);
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f = new Function ("ROMAN", func_roman);
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repo->add (f);
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f = new Function ("SEXDEC", func_sexdec);
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f->setParamCount (1, 3);
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repo->add (f);
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f = new Function ("ASCIITOCHAR", func_AsciiToChar);
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f->setParamCount (1, -1);
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f->setAcceptArray ();
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repo->add (f);
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f = new Function ("CHARTOASCII", func_CharToAscii);
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repo->add (f);
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f = new Function ("BOOL2INT", func_booltoint);
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repo->add (f);
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f = new Function ("INT2BOOL", func_inttobool);
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repo->add (f);
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f = new Function ("BOOL2STRING", func_ToString);
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repo->add (f);
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f = new Function ("NUM2STRING", func_ToString);
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repo->add (f);
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f = new Function ("STRING", func_ToString);
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repo->add (f);
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}
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// Function: POLR
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Value func_polr (valVector args, ValueCalc *calc, FuncExtra *)
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{
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// sqrt (a^2 + b^2)
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Value a = args[0];
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Value b = args[1];
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Value res = calc->sqrt (calc->add (calc->sqr (a), calc->sqr (b)));
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return res;
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}
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// Function: POLA
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Value func_pola (valVector args, ValueCalc *calc, FuncExtra *)
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{
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// acos (a / polr(a,b))
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Value polr = func_polr (args, calc, 0);
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if (calc->isZero (polr))
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return Value::errorDIV0();
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Value res = calc->acos (calc->div (args[0], polr));
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return res;
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}
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// Function: CARX
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Value func_carx (valVector args, ValueCalc *calc, FuncExtra *)
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{
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// a * cos(b)
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Value res = calc->mul (args[0], calc->cos (args[1]));
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return res;
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}
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// Function: CARY
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Value func_cary (valVector args, ValueCalc *calc, FuncExtra *)
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{
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// a * sin(b)
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Value res = calc->mul (args[0], calc->sin (args[1]));
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return res;
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}
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// Function: DECSEX
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Value func_decsex (valVector args, ValueCalc *calc, FuncExtra *)
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{
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// original function was very compicated, but I see no reason for that,
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// when it can be done as simply as this ...
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// maybe it was due to all the infrastructure not being ready back then
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return calc->conv()->asTime (calc->div (args[0], 24));
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}
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// Function: SEXDEC
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Value func_sexdec (valVector args, ValueCalc *calc, FuncExtra *)
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{
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if (args.count() == 1)
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{
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// convert given value to number
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Value time = calc->conv()->asTime (args[0]);
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return calc->mul (calc->conv()->asFloat (time), 24);
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}
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// convert h/m/s to number of hours
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Value h = args[0];
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Value m = args[1];
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Value res = calc->add (h, calc->div (m, 60));
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if (args.count() == 3) {
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Value s = args[2];
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res = calc->add (res, calc->div (s, 3600));
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}
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return res;
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}
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// Function: ROMAN
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Value func_roman (valVector args, ValueCalc *calc, FuncExtra *)
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{
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const QCString RNUnits[] = {"", "I", "II", "III", "IV", "V", "VI", "VII", "VIII", "IX"};
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const QCString RNTens[] = {"", "X", "XX", "XXX", "XL", "L", "LX", "LXX", "LXXX", "XC"};
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const QCString RNHundreds[] = {"", "C", "CC", "CCC", "CD", "D", "DC", "DCC", "DCCC", "CM"};
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const QCString RNThousands[] = {"", "M", "MM", "MMM"};
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// precision loss is not a problem here, as we only use the 0-3999 range
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long value = calc->conv()->asInteger (args[0]).asInteger ();
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if ((value < 0) || (value > 3999))
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return Value::errorNA();
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QString result;
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result = QString::fromLatin1 (RNThousands[(value / 1000)] +
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RNHundreds[(value / 100) % 10] +
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RNTens[(value / 10 ) % 10] +
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RNUnits[(value) % 10]);
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return Value (result);
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}
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// convert single roman character to decimal
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// return < 0 if invalid
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int func_arabic_helper (QChar c)
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{
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switch (c.upper().unicode())
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{
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case 'M': return 1000;
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case 'D': return 500;
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case 'C': return 100;
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case 'L': return 50;
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case 'X': return 10;
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case 'V': return 5;
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case 'I': return 1;
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}
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return -1;
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}
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// Function: ARABIC
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Value func_arabic (valVector args, ValueCalc *calc, FuncExtra *)
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{
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QString roman = calc->conv()->asString (args[0]).asString();
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if( roman.isEmpty() ) return Value::errorVALUE();
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int val = 0, lastd = 0, d = 0;
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for (unsigned i = 0; i < roman.length(); i++) {
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d = func_arabic_helper( roman[i] );
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if( d < 0 ) return Value::errorVALUE();
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if( lastd < d ) val -= lastd;
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else val += lastd;
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lastd = d;
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}
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if( lastd < d ) val -= lastd;
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else val += lastd;
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return Value (val);
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}
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// helper for AsciiToChar
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void func_a2c_helper (ValueCalc *calc, QString &s, Value val)
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{
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if (val.isArray()) {
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for (unsigned int row = 0; row < val.rows(); ++row)
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for (unsigned int col = 0; col < val.columns(); ++col)
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func_a2c_helper (calc, s, val.element (col, row));
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} else {
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int v = calc->conv()->asInteger (val).asInteger();
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if (v == 0) return;
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QChar c (v);
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s = s + c;
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}
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}
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// Function: AsciiToChar
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Value func_AsciiToChar (valVector args, ValueCalc *calc, FuncExtra *)
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{
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QString str;
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for (unsigned int i = 0; i < args.count(); i++)
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func_a2c_helper (calc, str, args[i]);
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return Value (str);
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}
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// Function: CharToAscii
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Value func_CharToAscii (valVector args, ValueCalc *calc, FuncExtra *)
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{
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QString val = calc->conv()->asString (args[0]).asString ();
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if (val.length() == 1)
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return Value (QString (val[0]));
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return Value::errorVALUE();
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}
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// Function: inttobool
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Value func_inttobool (valVector args, ValueCalc *calc, FuncExtra *)
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{
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return calc->conv()->asBoolean (args[0]);
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}
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// Function: booltoint
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Value func_booltoint (valVector args, ValueCalc *calc, FuncExtra *)
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{
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return calc->conv()->asInteger (args[0]);
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}
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// Function: BoolToString, NumberToString, String
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Value func_ToString (valVector args, ValueCalc *calc, FuncExtra *)
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{
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return calc->conv()->asString (args[0]);
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}
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