comparison widgets/WindowTypeSelector.cpp @ 0:fc9323a41f5a

start base : Sonic Visualiser sv1-1.0rc1

+/* -*- 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, QWidget *parent) :
+    QFrame(parent),
+    m_windowType(WindowType(999))
+{
+    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 min = 0, max = 0, deflt = 0, i = 0;
+    int window = int(defaultType);
+    if (window == 999) {
+        window = prefs->getPropertyRangeAndValue("Window Type", &min, &max,
+                                                 &deflt);
+    }
+    int index = 0;
+    
+    for (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);
+}
+