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82 lines
2.5 KiB
82 lines
2.5 KiB
15 years ago
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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/*
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Rosegarden
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A MIDI and audio sequencer and musical notation editor.
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This program is Copyright 2000-2008
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Guillaume Laurent <glaurent@telegraph-road.org>,
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Chris Cannam <cannam@all-day-breakfast.com>,
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Richard Bown <richard.bown@ferventsoftware.com>
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The moral rights of Guillaume Laurent, Chris Cannam, and Richard
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Bown to claim authorship of this work have been asserted.
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Other copyrights also apply to some parts of this work. Please
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see the AUTHORS file and individual file headers for details.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version. See the file
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COPYING included with this distribution for more information.
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*/
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#include "HSpinBox.h"
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#include <qstring.h>
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#include <cmath>
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#include <algorithm>
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namespace Rosegarden
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{
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QString HSpinBox::mapValueToText(int j)
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{
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QString str;
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str.sprintf(m_format, float(j) / m_scaleFactor);
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return str;
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}
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int HSpinBox::mapTextToValue( bool* ok )
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{
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*ok = true;
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float f = atof(text());
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return int(f * m_scaleFactor);
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}
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HSpinBox::HSpinBox( int minV, int maxV, int step, QWidget* parent,
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double bottom, double top, int decimals, float initialValue)
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: QSpinBox(minV,maxV,step,parent)
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{
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setValidator(new QDoubleValidator(bottom,top,decimals,this));
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initialize(decimals);
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setValuef(initialValue);
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}
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//constructor with default settings
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HSpinBox::HSpinBox( QWidget* parent, float initialValue, int step,
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double bottom, double top, int decimals,
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const QObject* recv, const char* mem)
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: QSpinBox((int)(bottom*pow(10.0, decimals)),
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(int)(top*pow(10.0, decimals)), step, parent)
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{
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setValidator(new QDoubleValidator(bottom,top,decimals,this));
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initialize(decimals);
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setValuef(initialValue);
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if (recv != NULL && mem != NULL)
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QObject::connect(this, SIGNAL(valueChanged(int)), recv, mem);
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}
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float HSpinBox::valuef() { return float(value()) / m_scaleFactor; }
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void HSpinBox::setValuef(float v) { setValue(static_cast<int>(v * m_scaleFactor)); }
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void HSpinBox::initialize(int digits) {
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m_scaleFactor = pow(10.0, digits);
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sprintf(m_format, "%c%1i.%1if", '%', digits+3, digits);
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}
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}
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