1 files changed, 121 insertions, 0 deletions
diff --git a/krecipes/src/widgets/fractioninput.cpp b/krecipes/src/widgets/fractioninput.cpp
new file mode 100644
index 0000000..e9ceac1
--- /dev/null
+++ b/krecipes/src/widgets/fractioninput.cpp
@@ -0,0 +1,121 @@
+/***************************************************************************
+*   Copyright (C) 2003 by                                                 *
+*   Jason Kivlighn ([email protected])                                  *
+*                                                                         *
+*   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.                                   *
+***************************************************************************/
+
+#include "fractioninput.h"
+
+#include <qtimer.h>
+
+#include <kglobalsettings.h>
+
+#include "datablocks/ingredient.h"
+
+FractionInput::FractionInput( QWidget *parent, MixedNumber::Format format ) : KLineEdit( parent ),
+	m_allowRange(false),
+	m_validateTimer(new QTimer(this)),
+	m_format(format)
+{
+	setAlignment( Qt::AlignRight );
+
+	connect( this, SIGNAL(textChanged(const QString&)), this, SLOT(slotStartValidateTimer()) );
+	connect( m_validateTimer, SIGNAL(timeout()), this, SLOT(validate()) );
+}
+
+FractionInput::~FractionInput()
+{
+	delete m_validateTimer;
+}
+
+void FractionInput::setValue( double d, double amount_offset )
+{
+	MixedNumber m( d );
+	setValue( m, amount_offset );
+}
+
+void FractionInput::setValue( const MixedNumber &m, double amount_offset )
+{
+	QString text = m.toString( m_format );
+	if ( amount_offset > 0 ) {
+		text += "-" + MixedNumber(m+amount_offset).toString( MixedNumber::MixedNumberFormat );
+	}
+	setText(text);
+}
+
+void FractionInput::value( MixedNumber &amount, double &amount_offset ) const
+{
+	Ingredient i; i.setAmount( text() );
+
+	amount = MixedNumber(i.amount);
+	amount_offset = i.amount_offset;
+}
+
+void FractionInput::value( double &amount, double &amount_offset ) const
+{
+	Ingredient i; i.setAmount( text() );
+
+	amount = i.amount;
+	amount_offset = i.amount_offset;
+}
+
+MixedNumber FractionInput::value() const
+{
+	Ingredient i; i.setAmount( text() );
+
+	return MixedNumber(i.amount);
+}
+
+MixedNumber FractionInput::minValue() const
+{
+	Ingredient i; i.setAmount( text() );
+
+	return MixedNumber(i.amount);
+}
+
+MixedNumber FractionInput::maxValue() const
+{
+	Ingredient i; i.setAmount( text() );
+
+	return MixedNumber(i.amount_offset+i.amount);
+}
+
+bool FractionInput::isInputValid() const
+{
+	if ( !m_allowRange && text().contains("-") )
+		return false;
+
+	bool ok;
+	Ingredient i; i.setAmount( text(), &ok );
+
+	return ok;
+}
+
+void FractionInput::slotStartValidateTimer()
+{
+	if ( !m_validateTimer->isActive() )
+		m_validateTimer->start( 1000, true );
+
+	if ( isInputValid() )
+		emit valueChanged( value() );
+}
+
+void FractionInput::validate()
+{
+	if ( isInputValid() ) {
+		setPaletteForegroundColor( KGlobalSettings::textColor() );
+	}
+	else
+		setPaletteForegroundColor( Qt::red );
+}
+
+bool FractionInput::isEmpty() const
+{
+	return text().isEmpty();
+}
+
+#include "fractioninput.moc"