view widgets/WindowTypeSelector.cpp @ 959:2633a1d73e39

Address #1214, layer import produces wrong layer type. We needed a more principled approach to making sure the format gets updated properly and the dialog elements are consistent (basically separating making the dialog elements consistent from subsequently updating the format). This change should provide that, though there may be gotchas still.

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

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006 Chris Cannam.
    
    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 "WindowTypeSelector.h"

#include "WindowShapePreview.h"

#include <QVBoxLayout>
#include <QComboBox>

#include "base/Preferences.h"

WindowTypeSelector::WindowTypeSelector(WindowType defaultType)
{
    init(defaultType);
}

WindowTypeSelector::WindowTypeSelector()
{
    Preferences *prefs = Preferences::getInstance();
    int min = 0, max = 0, deflt = 0;
    WindowType type =
        WindowType(prefs->getPropertyRangeAndValue("Window Type", &min, &max,
                                                   &deflt));
    init(type);
}

void
WindowTypeSelector::init(WindowType defaultType)
{
    QVBoxLayout *layout = new QVBoxLayout;
    layout->setMargin(0);
    setLayout(layout);

    // The WindowType enum is in rather a ragbag order -- reorder it here
    // in a more sensible order
    m_windows = new WindowType[9];
    m_windows[0] = HanningWindow;
    m_windows[1] = HammingWindow;
    m_windows[2] = BlackmanWindow;
    m_windows[3] = BlackmanHarrisWindow;
    m_windows[4] = NuttallWindow;
    m_windows[5] = GaussianWindow;
    m_windows[6] = ParzenWindow;
    m_windows[7] = BartlettWindow;
    m_windows[8] = RectangularWindow;

    Preferences *prefs = Preferences::getInstance();

    m_windowShape = new WindowShapePreview;

    m_windowCombo = new QComboBox;
    int window = int(defaultType);
    int index = 0;
    
    for (int i = 0; i <= 8; ++i) {
        m_windowCombo->addItem(prefs->getPropertyValueLabel("Window Type",
                                                            m_windows[i]));
        if (m_windows[i] == window) index = i;
    }

    m_windowCombo->setCurrentIndex(index);

    layout->addWidget(m_windowShape);
    layout->addWidget(m_windowCombo);

    connect(m_windowCombo, SIGNAL(currentIndexChanged(int)),
            this, SLOT(windowIndexChanged(int)));
    windowIndexChanged(index);
}

WindowTypeSelector::~WindowTypeSelector()
{
    delete[] m_windows;
}

WindowType
WindowTypeSelector::getWindowType() const
{
    return m_windowType;
}

void
WindowTypeSelector::setWindowType(WindowType type)
{
    if (type == m_windowType) return;
    int index;
    for (index = 0; index <= 8; ++index) {
        if (m_windows[index] == type) break;
    }
    if (index <= 8) m_windowCombo->setCurrentIndex(index);
    m_windowType = type;
    m_windowShape->setWindowType(m_windowType);
}

void
WindowTypeSelector::windowIndexChanged(int index)
{
    WindowType type = m_windows[index];
    if (type == m_windowType) return;
    m_windowType = type;
    m_windowShape->setWindowType(m_windowType);
    emit windowTypeChanged(type);
}