/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */

/*
    Rosegarden
    A MIDI and audio sequencer and musical notation editor.
    Copyright 2000-2014 the Rosegarden development team.
 
    Other copyrights also apply to some parts of this work.  Please
    see the AUTHORS file and individual file headers for details.
 
    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.  See the file
    COPYING included with this distribution for more information.
*/


#include "FloatEdit.h"

#include <QDoubleSpinBox>
#include <QDialog>
#include <QDialogButtonBox>
#include <QGroupBox>
#include <QLabel>
#include <QString>
#include <QWidget>
#include <QVBoxLayout>

#include <cmath>

namespace Rosegarden
{

FloatEdit::FloatEdit(QWidget *parent,
                     const QString &title,
                     const QString &/*text*/,
                     float min,
                     float max,
                     float value,
                     float step):
        QDialog(parent)
{
    setModal(true);
    setWindowTitle(title);
    setObjectName("MinorDialog");

    QGridLayout *metagrid = new QGridLayout;
    setLayout(metagrid);
    QGroupBox *groupBox = new QGroupBox();
    QVBoxLayout *groupBoxLayout = new QVBoxLayout;
    metagrid->addWidget(groupBox, 0, 0);

    // Calculate decimal points according to the step size
    //
    double calDP = log10(step);
    int dps = 0;
    if (calDP < 0.0)
//      dps = int( -calDP);
        dps = static_cast<int>(ceil(-calDP));
    //std::cout << "CAL DP = " << calDP << ", dps = " << dps << std::endl;

    m_spin = new QDoubleSpinBox(groupBox);
    m_spin->setDecimals(dps);
    m_spin->setMinimum(min);
    m_spin->setMaximum(max);
    m_spin->setSingleStep(step);
    m_spin->setValue(value);
    groupBoxLayout->addWidget(m_spin);

    groupBoxLayout->addWidget(
        new QLabel(QString("(min: %1, max: %2)").arg(min).arg(max)));
    groupBox->setLayout(groupBoxLayout);

    QDialogButtonBox *buttonBox
        = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
    metagrid->addWidget(buttonBox, 1, 0);
    metagrid->setRowStretch(0, 10);
    connect(buttonBox, SIGNAL(accepted()), this, SLOT(accept()));
    connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));
}

float
FloatEdit::getValue() const
{
    return m_spin->value();
}


void
FloatEdit::reparent(QWidget *newParent)
{

    // Reparent to either top level or dialog
    //
    while (newParent->parentWidget() && !newParent->isWindow()) {
        newParent = newParent->parentWidget();
    }

    setParent(newParent, Qt::Dialog);

    // FloatEdit widget is now at top left corner of newParent (Qt4)
}


}
#include "FloatEdit.moc"
