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-rw-r--r--tdeui/knumvalidator.cpp371
1 files changed, 371 insertions, 0 deletions
diff --git a/tdeui/knumvalidator.cpp b/tdeui/knumvalidator.cpp
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+/**********************************************************************
+**
+**
+** KIntValidator, KFloatValidator:
+** Copyright (C) 1999 Glen Parker <glenebob@nwlink.com>
+** KDoubleValidator:
+** Copyright (c) 2002 Marc Mutz <mutz@kde.org>
+**
+** This library is free software; you can redistribute it and/or
+** modify it under the terms of the GNU Library General Public
+** License as published by the Free Software Foundation; either
+** version 2 of the License, or (at your option) any later version.
+**
+** 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
+** Library General Public License for more details.
+**
+** You should have received a copy of the GNU Library General Public
+** License along with this library; if not, write to the Free
+** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+**
+*****************************************************************************/
+
+#include <tqwidget.h>
+#include <tqstring.h>
+
+#include "knumvalidator.h"
+#include <klocale.h>
+#include <kglobal.h>
+#include <kdebug.h>
+
+///////////////////////////////////////////////////////////////
+// Implementation of KIntValidator
+//
+
+KIntValidator::KIntValidator ( TQWidget * parent, int base, const char * name )
+ : TQValidator(TQT_TQOBJECT(parent), name)
+{
+ _base = base;
+ if (_base < 2) _base = 2;
+ if (_base > 36) _base = 36;
+
+ _min = _max = 0;
+}
+
+KIntValidator::KIntValidator ( int bottom, int top, TQWidget * parent, int base, const char * name )
+ : TQValidator(TQT_TQOBJECT(parent), name)
+{
+ _base = base;
+ if (_base > 36) _base = 36;
+
+ _min = bottom;
+ _max = top;
+}
+
+KIntValidator::~KIntValidator ()
+{}
+
+TQValidator::State KIntValidator::validate ( TQString &str, int & ) const
+{
+ bool ok;
+ int val = 0;
+ TQString newStr;
+
+ newStr = str.stripWhiteSpace();
+ if (_base > 10)
+ newStr = newStr.upper();
+
+ if (newStr == TQString::tqfromLatin1("-")) // a special case
+ if ((_min || _max) && _min >= 0)
+ ok = false;
+ else
+ return TQValidator::Acceptable;
+ else if (newStr.length())
+ val = newStr.toInt(&ok, _base);
+ else {
+ val = 0;
+ ok = true;
+ }
+
+ if (! ok)
+ return TQValidator::Invalid;
+
+ if ((! _min && ! _max) || (val >= _min && val <= _max))
+ return TQValidator::Acceptable;
+
+ if (_max && _min >= 0 && val < 0)
+ return TQValidator::Invalid;
+
+ return TQValidator::Valid;
+}
+
+void KIntValidator::fixup ( TQString &str ) const
+{
+ int dummy;
+ int val;
+ TQValidator::State state;
+
+ state = validate(str, dummy);
+
+ if (state == TQValidator::Invalid || state == TQValidator::Acceptable)
+ return;
+
+ if (! _min && ! _max)
+ return;
+
+ val = str.toInt(0, _base);
+
+ if (val < _min) val = _min;
+ if (val > _max) val = _max;
+
+ str.setNum(val, _base);
+}
+
+void KIntValidator::setRange ( int bottom, int top )
+{
+ _min = bottom;
+ _max = top;
+
+ if (_max < _min)
+ _max = _min;
+}
+
+void KIntValidator::setBase ( int base )
+{
+ _base = base;
+ if (_base < 2) _base = 2;
+}
+
+int KIntValidator::bottom () const
+{
+ return _min;
+}
+
+int KIntValidator::top () const
+{
+ return _max;
+}
+
+int KIntValidator::base () const
+{
+ return _base;
+}
+
+
+///////////////////////////////////////////////////////////////
+// Implementation of KFloatValidator
+//
+
+class KFloatValidatorPrivate
+{
+public:
+ KFloatValidatorPrivate()
+ {
+ }
+ ~KFloatValidatorPrivate()
+ {
+ }
+ bool acceptLocalizedNumbers;
+};
+
+
+KFloatValidator::KFloatValidator ( TQWidget * parent, const char * name )
+ : TQValidator(TQT_TQOBJECT(parent), name)
+{
+ d = new KFloatValidatorPrivate;
+ d->acceptLocalizedNumbers=false;
+ _min = _max = 0;
+}
+
+KFloatValidator::KFloatValidator ( double bottom, double top, TQWidget * parent, const char * name )
+ : TQValidator(TQT_TQOBJECT(parent), name)
+{
+ d = new KFloatValidatorPrivate;
+ d->acceptLocalizedNumbers=false;
+ _min = bottom;
+ _max = top;
+}
+
+KFloatValidator::KFloatValidator ( double bottom, double top, bool localeAware, TQWidget * parent, const char * name )
+ : TQValidator(TQT_TQOBJECT(parent), name)
+{
+ d = new KFloatValidatorPrivate;
+ d->acceptLocalizedNumbers = localeAware;
+ _min = bottom;
+ _max = top;
+}
+
+KFloatValidator::~KFloatValidator ()
+{
+ delete d;
+}
+
+void KFloatValidator::setAcceptLocalizedNumbers(bool _b)
+{
+ d->acceptLocalizedNumbers=_b;
+}
+
+bool KFloatValidator::acceptLocalizedNumbers() const
+{
+ return d->acceptLocalizedNumbers;
+}
+
+TQValidator::State KFloatValidator::validate ( TQString &str, int & ) const
+{
+ bool ok;
+ double val = 0;
+ TQString newStr;
+ newStr = str.stripWhiteSpace();
+
+ if (newStr == TQString::tqfromLatin1("-")) // a special case
+ if ((_min || _max) && _min >= 0)
+ ok = false;
+ else
+ return TQValidator::Acceptable;
+ else if (newStr == TQString::tqfromLatin1(".") || (d->acceptLocalizedNumbers && newStr==KGlobal::locale()->decimalSymbol())) // another special case
+ return TQValidator::Acceptable;
+ else if (newStr.length())
+ {
+ val = newStr.toDouble(&ok);
+ if(!ok && d->acceptLocalizedNumbers)
+ val= KGlobal::locale()->readNumber(newStr,&ok);
+ }
+ else {
+ val = 0;
+ ok = true;
+ }
+
+ if (! ok)
+ return TQValidator::Invalid;
+
+ if (( !_min && !_max) || (val >= _min && val <= _max))
+ return TQValidator::Acceptable;
+
+ if (_max && _min >= 0 && val < 0)
+ return TQValidator::Invalid;
+
+ if ( (_min || _max) && (val < _min || val > _max))
+ return TQValidator::Invalid;
+
+ return TQValidator::Valid;
+}
+
+void KFloatValidator::fixup ( TQString &str ) const
+{
+ int dummy;
+ double val;
+ TQValidator::State state;
+
+ state = validate(str, dummy);
+
+ if (state == TQValidator::Invalid || state == TQValidator::Acceptable)
+ return;
+
+ if (! _min && ! _max)
+ return;
+
+ val = str.toDouble();
+
+ if (val < _min) val = _min;
+ if (val > _max) val = _max;
+
+ str.setNum(val);
+}
+
+void KFloatValidator::setRange ( double bottom, double top )
+{
+ _min = bottom;
+ _max = top;
+
+ if (_max < _min)
+ _max = _min;
+}
+
+double KFloatValidator::bottom () const
+{
+ return _min;
+}
+
+double KFloatValidator::top () const
+{
+ return _max;
+}
+
+
+
+
+///////////////////////////////////////////////////////////////
+// Implementation of KDoubleValidator
+//
+
+class KDoubleValidator::Private {
+public:
+ Private( bool accept=true ) : acceptLocalizedNumbers( accept ) {}
+
+ bool acceptLocalizedNumbers;
+};
+
+KDoubleValidator::KDoubleValidator( TQObject * parent, const char * name )
+ : TQDoubleValidator( parent, name ), d( 0 )
+{
+ d = new Private();
+}
+
+KDoubleValidator::KDoubleValidator( double bottom, double top, int decimals,
+ TQObject * parent, const char * name )
+ : TQDoubleValidator( bottom, top, decimals, parent, name ), d( 0 )
+{
+ d = new Private();
+}
+
+KDoubleValidator::~KDoubleValidator()
+{
+ delete d;
+}
+
+bool KDoubleValidator::acceptLocalizedNumbers() const {
+ return d->acceptLocalizedNumbers;
+}
+
+void KDoubleValidator::setAcceptLocalizedNumbers( bool accept ) {
+ d->acceptLocalizedNumbers = accept;
+}
+
+TQValidator::State KDoubleValidator::validate( TQString & input, int & p ) const {
+ TQString s = input;
+ if ( acceptLocalizedNumbers() ) {
+ KLocale * l = KGlobal::locale();
+ // ok, we have to re-format the number to have:
+ // 1. decimalSymbol == '.'
+ // 2. negativeSign == '-'
+ // 3. positiveSign == <empty>
+ // 4. thousandsSeparator() == <empty> (we don't check that there
+ // are exactly three decimals between each separator):
+ TQString d = l->decimalSymbol(),
+ n = l->negativeSign(),
+ p = l->positiveSign(),
+ t = l->thousandsSeparator();
+ // first, delete p's and t's:
+ if ( !p.isEmpty() )
+ for ( int idx = s.find( p ) ; idx >= 0 ; idx = s.find( p, idx ) )
+ s.remove( idx, p.length() );
+
+
+ if ( !t.isEmpty() )
+ for ( int idx = s.find( t ) ; idx >= 0 ; idx = s.find( t, idx ) )
+ s.remove( idx, t.length() );
+
+ // then, replace the d's and n's
+ if ( ( !n.isEmpty() && n.find('.') != -1 ) ||
+ ( !d.isEmpty() && d.find('-') != -1 ) ) {
+ // make sure we don't replace something twice:
+ kdWarning() << "KDoubleValidator: decimal symbol contains '-' or "
+ "negative sign contains '.' -> improve algorithm" << endl;
+ return Invalid;
+ }
+
+ if ( !d.isEmpty() && d != "." )
+ for ( int idx = s.find( d ) ; idx >= 0 ; idx = s.find( d, idx + 1 ) )
+ s.replace( idx, d.length(), '.');
+
+ if ( !n.isEmpty() && n != "-" )
+ for ( int idx = s.find( n ) ; idx >= 0 ; idx = s.find( n, idx + 1 ) )
+ s.replace( idx, n.length(), '-' );
+ }
+
+ return base::validate( s, p );
+}
+
+#include "knumvalidator.moc"
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