author | zautrix <zautrix> | 2004-06-26 19:01:18 (UTC) |
---|---|---|
committer | zautrix <zautrix> | 2004-06-26 19:01:18 (UTC) |
commit | b9aad1f15dc600e4dbe4c62d3fcced6363188ba3 (patch) (side-by-side diff) | |
tree | 2c3d4004fb21c72cba65793859f9bcd8ffd3a49c /microkde/kdeui/knumvalidator.cpp | |
download | kdepimpi-b9aad1f15dc600e4dbe4c62d3fcced6363188ba3.zip kdepimpi-b9aad1f15dc600e4dbe4c62d3fcced6363188ba3.tar.gz kdepimpi-b9aad1f15dc600e4dbe4c62d3fcced6363188ba3.tar.bz2 |
Initial revision
Diffstat (limited to 'microkde/kdeui/knumvalidator.cpp') (more/less context) (show whitespace changes)
-rw-r--r-- | microkde/kdeui/knumvalidator.cpp | 372 |
1 files changed, 372 insertions, 0 deletions
diff --git a/microkde/kdeui/knumvalidator.cpp b/microkde/kdeui/knumvalidator.cpp new file mode 100644 index 0000000..78a8471 --- a/dev/null +++ b/microkde/kdeui/knumvalidator.cpp @@ -0,0 +1,372 @@ +/********************************************************************** +** +** $Id$ +** +** 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +** +*****************************************************************************/ + +#include <qwidget.h> +#include <qstring.h> + +#include "knumvalidator.h" +#include <klocale.h> +#include <kglobal.h> +#include <kdebug.h> + +/////////////////////////////////////////////////////////////// +// Implementation of KIntValidator +// + +KIntValidator::KIntValidator ( QWidget * parent, int base, const char * name ) + : QValidator(parent, name) +{ + _base = base; + if (_base < 2) _base = 2; + if (_base > 36) _base = 36; + + _min = _max = 0; +} + +KIntValidator::KIntValidator ( int bottom, int top, QWidget * parent, int base, const char * name ) + : QValidator(parent, name) +{ + _base = base; + if (_base > 36) _base = 36; + + _min = bottom; + _max = top; +} + +KIntValidator::~KIntValidator () +{} + +QValidator::State KIntValidator::validate ( QString &str, int & ) const +{ + bool ok; + int val = 0; + QString newStr; + + newStr = str.stripWhiteSpace(); + if (_base > 10) + newStr = newStr.upper(); + + if (newStr == QString::fromLatin1("-")) // a special case + if ((_min || _max) && _min >= 0) + ok = false; + else + return QValidator::Acceptable; + else if (newStr.length()) + val = newStr.toInt(&ok, _base); + else { + val = 0; + ok = true; + } + + if (! ok) + return QValidator::Invalid; + + if ((! _min && ! _max) || (val >= _min && val <= _max)) + return QValidator::Acceptable; + + if (_max && _min >= 0 && val < 0) + return QValidator::Invalid; + + return QValidator::Valid; +} + +void KIntValidator::fixup ( QString &str ) const +{ + int dummy; + int val; + QValidator::State state; + + state = validate(str, dummy); + + if (state == QValidator::Invalid || state == QValidator::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 ( QWidget * parent, const char * name ) + : QValidator(parent, name) +{ + d = new KFloatValidatorPrivate; + d->acceptLocalizedNumbers=false; + _min = _max = 0; +} + +KFloatValidator::KFloatValidator ( double bottom, double top, QWidget * parent, const char * name ) + : QValidator(parent, name) +{ + d = new KFloatValidatorPrivate; + d->acceptLocalizedNumbers=false; + _min = bottom; + _max = top; +} + +KFloatValidator::KFloatValidator ( double bottom, double top, bool localeAware, QWidget * parent, const char * name ) + : QValidator(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; +} + +QValidator::State KFloatValidator::validate ( QString &str, int & ) const +{ + bool ok; + double val = 0; + QString newStr; + newStr = str.stripWhiteSpace(); + + if (newStr == QString::fromLatin1("-")) // a special case + if ((_min || _max) && _min >= 0) + ok = false; + else + return QValidator::Acceptable; + else if (newStr == QString::fromLatin1(".") || (d->acceptLocalizedNumbers && newStr==KGlobal::locale()->decimalSymbol())) // another special case + return QValidator::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 QValidator::Invalid; + + if (( !_min && !_max) || (val >= _min && val <= _max)) + return QValidator::Acceptable; + + if (_max && _min >= 0 && val < 0) + return QValidator::Invalid; + + if ( (_min || _max) && (val < _min || val > _max)) + return QValidator::Invalid; + + return QValidator::Valid; +} + +void KFloatValidator::fixup ( QString &str ) const +{ + int dummy; + double val; + QValidator::State state; + + state = validate(str, dummy); + + if (state == QValidator::Invalid || state == QValidator::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( QObject * parent, const char * name ) + : QDoubleValidator( (QWidget*)parent, name ), d( 0 ) +{ + d = new Private(); +} + +KDoubleValidator::KDoubleValidator( double bottom, double top, int decimals, + QObject * parent, const char * name ) + : QDoubleValidator( bottom, top, decimals, (QWidget*)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; +} + +QValidator::State KDoubleValidator::validate( QString & input, int & p ) const { + QString 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): + QString 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 ); +} + +//US #include "knumvalidator.moc" |