1 files changed, 131 insertions, 0 deletions
diff --git a/src/gui/doublespinbox.h b/src/gui/doublespinbox.h
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+++ b/src/gui/doublespinbox.h
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+/***************************************************************************
+ *   Copyright (C) 2003-2004 by David Saxton                               *
+ *   [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.                                   *
+ ***************************************************************************/
+
+#ifndef DOUBLESPINBOX_H
+#define DOUBLESPINBOX_H
+
+#include <qspinbox.h>
+
+/**
+Where appropriate, function names with value in them should
+be prefixed with "real" - e.g. realValue() - to get the value stored in the
+spin box plus the SI magnitude symbol it is showing
+
+@author David Saxton
+*/
+class DoubleSpinBox : public QSpinBox
+{
+	Q_OBJECT
+	public:
+		DoubleSpinBox( double lower, double upper, double minAbs, double value, const QString & unit, QWidget * parent = 0 );
+		virtual ~DoubleSpinBox();
+		
+		/**
+		 * The minimum value is the lowest number that the user can enter.
+		 */
+		double minValue() const { return m_minValue; }
+		/**
+		 * @see minValue
+		 */
+		void setMinValue( double minValue ) { m_minValue = minValue; }
+		/**
+		 * The minimum value is the lowest number that the user can enter.
+		 */
+		void setMinValue( int minValue ) { m_minValue = minValue; }
+		/**
+		 * The maximum value is the highest number that the user can enter.
+		 */
+		double maxValue() const { return m_maxValue; }
+		/**
+		 * @see maxValue
+		 */
+		void setMaxValue( double maxValue ) { m_maxValue = maxValue; }
+		/**
+		 * @see maxValue
+		 */
+		void setMaxValue( int maxValue ) { m_maxValue = maxValue; }
+		/**
+		 * The minimum absolute value is the smallest value that the user can
+		 * enter before the value is considered 0.
+		 */
+		void setMinAbsValue( double minAbsValue ) { m_minAbsValue = minAbsValue; }
+		/**
+		 * The actual value that the user has entered - e.g. if the spinbox
+		 * displays "100 kF", then the value returned will be 1e5.
+		 */
+		double value();
+		/**
+		 * Set the value to be displayed - e.g. if value is 1e5, then the
+		 * spinbox might display "100 kF".
+		 */
+		void setValue( double value );
+		/**
+		 * Sets the unit used, e.g. "F"
+		 */
+		void setUnit( const QString & unit );
+		
+	public slots:
+		virtual void stepUp();
+		virtual void stepDown();
+	
+	signals:
+		/**
+		 * This value is emitted whenever the value of the spinbox changes.
+		 */
+		void valueChanged( double value );
+		
+	protected slots:
+		/**
+		 * Checks if the value has changed - and if so, emits a valueChanged
+		 * signal.
+		 */
+		void checkIfChanged();
+		/**
+		 * Sets the suffix from m_queuedSuffix. Called from QTimer::singleShot 
+		 * to avoid strange recursion problems.
+		 */
+		void setQueuedSuffix();
+	
+	protected:
+		/**
+		 * Updates the suffix using m_unit and value.
+		 */
+		void updateSuffix( double value );
+		/**
+		 * Returns the multiplication number from what is displayed
+		 * in the box, e.g. "10 kV" will return "1000" due to the letter "k" presence
+		 */
+		double getMult();
+		/**
+		 * Returns the number currently displayed in the spin box.
+		 */
+		double getDisplayedNumber( bool * ok );
+		/**
+		 *  Overloaded the method in QSpinxBox to allow SI prefixes to be entered
+		 */
+		virtual int mapTextToValue( bool * ok );
+		/**
+		 *  Overloaded the method in QSpinxBox to allow SI prefixes to be entered
+		 */
+		virtual QString mapValueToText( int v );
+		/**
+		 * Returns value rounded off to one significant figure.
+		 */
+		double roundToOneSF( double value );
+		
+		QString m_queuedSuffix; ///< Used
+		QString m_unit;
+		double m_minValue;
+		double m_maxValue;
+		double m_minAbsValue;
+		double m_lastEmittedValue;
+};
+
+#endif