view widgets/WindowTypeSelector.cpp @ 1534:bfd8b22fd67c

Fix #1904 Scrolling colour 3d plot does not always work when in View normalisation mode. We shouldn't imagine we've just invalidated the cache if the truth is that we've only just created the renderer

/* -*- 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)));

    m_windowType = defaultType;
    m_windowShape->setWindowType(m_windowType);
}

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);
}