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QuantitySpinBox.h
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QuantitySpinBox.h
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/***************************************************************************
* Copyright (c) 2014 Werner Mayer <wmayer[at]users.sourceforge.net> *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* 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., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#ifndef GUI_QUANTITYSPINBOX_H
#define GUI_QUANTITYSPINBOX_H
#include <QAbstractSpinBox>
#include <Gui/MetaTypes.h>
#include "ExpressionBinding.h"
#ifdef Q_MOC_RUN
Q_DECLARE_METATYPE(Base::Quantity)
#endif
namespace Gui {
class QuantitySpinBoxPrivate;
class GuiExport QuantitySpinBox : public QAbstractSpinBox, public ExpressionBinding
{
Q_OBJECT
Q_PROPERTY(QString unit READ unitText WRITE setUnitText)
Q_PROPERTY(double minimum READ minimum WRITE setMinimum)
Q_PROPERTY(double maximum READ maximum WRITE setMaximum)
Q_PROPERTY(double singleStep READ singleStep WRITE setSingleStep)
Q_PROPERTY(Base::Quantity value READ value WRITE setValue NOTIFY valueChanged USER true)
public:
using ExpressionBinding::apply;
explicit QuantitySpinBox(QWidget *parent = 0);
virtual ~QuantitySpinBox();
/// Get the current quantity
Base::Quantity value() const;
/// Gives the current state of the user input, gives true if it is a valid input with correct quantity
/// or returns false if the input is a unparsable string or has a wrong unit.
bool hasValidInput() const;
/** Sets the Unit this widget is working with.
* After setting the Unit the widget will only accept
* user input with this unit type. Or if the user input
* a value without unit, this one will be added to the resulting
* Quantity.
*/
Base::Unit unit() const;
void setUnit(const Base::Unit &unit);
/// Set the unit property
void setUnitText(const QString&);
/// Get the unit property
QString unitText(void);
/// Get the value of the singleStep property
double singleStep() const;
/// Set the value of the singleStep property
void setSingleStep(double val);
/// Gets the value of the minimum property
double minimum() const;
/// Sets the value of the minimum property
void setMinimum(double min);
/// Gets the value of the maximum property
double maximum() const;
/// Sets the value of the maximum property
void setMaximum(double max);
/// Set the number portion selected
void selectNumber();
void setRange(double min, double max);
Base::Quantity valueFromText(const QString &text) const;
QString textFromValue(const Base::Quantity& val) const;
virtual void stepBy(int steps);
virtual void clear();
virtual QValidator::State validate(QString &input, int &pos) const;
virtual void fixup(QString &str) const;
bool event(QEvent *event);
void setExpression(boost::shared_ptr<App::Expression> expr);
void bind(const App::ObjectIdentifier &_path);
bool apply(const std::string &propName);
public Q_SLOTS:
/// Sets the field with a quantity
void setValue(const Base::Quantity& val);
/// Set a numerical value which gets converted to a quantity with the currently set unit type
void setValue(double);
protected Q_SLOTS:
void userInput(const QString & text);
void openFormulaDialog();
void finishFormulaDialog();
//get notified on expression change
virtual void onChange();
protected:
virtual StepEnabled stepEnabled() const;
virtual void showEvent(QShowEvent * event);
virtual void focusInEvent(QFocusEvent * event);
virtual void focusOutEvent(QFocusEvent * event);
virtual void keyPressEvent(QKeyEvent *event);
virtual void resizeEvent(QResizeEvent *event);
private:
void updateText(const Base::Quantity&);
Q_SIGNALS:
/** Gets emitted if the user has entered a VALID input
* Valid means the user inputted string obeys all restrictions
* like: minimum, maximum and/or the right Unit (if specified).
*/
void valueChanged(const Base::Quantity&);
/** Gets emitted if the user has entered a VALID input
* Valid means the user inputted string obeys all restrictions
* like: minimum, maximum and/or the right Unit (if specified).
*/
void valueChanged(double);
private:
QScopedPointer<QuantitySpinBoxPrivate> d_ptr;
Q_DISABLE_COPY(QuantitySpinBox)
Q_DECLARE_PRIVATE(QuantitySpinBox)
};
} // namespace Gui
#endif // GUI_QUANTITYSPINBOX_H