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/* This file is part of the KDE project
Copyright (C) 2002, Rob Buis(buis@kde.org)
Copyright (C) 2004, Nicolas GOUTTE <goutte@kde.org>
Copyright (C) 2007, Thomas Zander <zander@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; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef KOUNITDOUBLESPINBOX_H
#define KOUNITDOUBLESPINBOX_H
#include "kowidgets_export.h"
#include <QDoubleSpinBox>
class KoUnit;
/**
* Spin box for double precision numbers with unit display.
* Use this widget for any value that represents a real measurable value for consistency throughout
* Calligra.
* This widget shows the value in the user-selected units (inch, millimeters, etc) but keeps the
* calligra-widget default measurement unit internally. This has the advantage that just setting and
* getting a value will not change the value due to conversions.
* The KoDocument class has a unit() method for consistent (document wide) configuration of the
* used unit.
* It is advised to use a QDoubleSpinBox in QtDesigner and then use the context-menu item: 'Promote to Custom Widget' and use the values: 'classname=KoUnitDoubleSpinBox', 'headerfile=KoUnitDoubleSpinBox.h'
* This will generate code that uses this spinbox in the correct manner.
*/
class KOWIDGETS_EXPORT KoUnitDoubleSpinBox : public QDoubleSpinBox
{
Q_OBJECT
public:
/**
* Constructor
* Create a new spinBox with very broad range predefined.
* This spinbox will have min and max borders of 10000 points and use
* the default unit of points.
* @param parent the parent widget
*/
explicit KoUnitDoubleSpinBox( QWidget *parent = 0);
~KoUnitDoubleSpinBox() override;
/**
* Set the new value in points which will then be converted to the current unit for display
* @param newValue the new value
* @see value()
*/
virtual void changeValue( double newValue );
/**
* This spinbox shows the internal value after a conversion to the unit set here.
*/
virtual void setUnit( const KoUnit &);
/// @return the current value, converted in points
double value( ) const;
/// Set minimum value in points.
void setMinimum(double min);
/// Set maximum value in points.
void setMaximum(double max);
/// Set step size in the current unit.
void setLineStep(double step);
/// Set step size in points.
void setLineStepPt(double step);
/// Set minimum, maximum value and the step size (all in points)
void setMinMaxStep( double min, double max, double step );
/// reimplemented from superclass, will forward to KoUnitDoubleValidator
QValidator::State validate(QString &input, int &pos) const override;
/**
* Transform the double in a nice text, using locale symbols
* @param value the number as double
* @return the resulting string
*/
QString textFromValue( double value ) const override;
/**
* Transform a string into a double, while taking care of locale specific symbols.
* @param str the string to transform into a number
* @return the value as double
*/
double valueFromText( const QString& str ) const override;
Q_SIGNALS:
/// emitted like valueChanged in the parent, but this one emits the point value
void valueChangedPt( qreal );
private:
class Private;
Private * const d;
private Q_SLOTS:
// exists to do emits for valueChangedPt
void privateValueChanged();
};
#endif
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