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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 Sonic Visualiser
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5 An audio file viewer and annotation editor.
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6 Centre for Digital Music, Queen Mary, University of London.
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7 This file copyright 2006 Chris Cannam.
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8
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9 This program is free software; you can redistribute it and/or
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10 modify it under the terms of the GNU General Public License as
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11 published by the Free Software Foundation; either version 2 of the
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12 License, or (at your option) any later version. See the file
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13 COPYING included with this distribution for more information.
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14 */
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15
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16 #include "WindowTypeSelector.h"
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17
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18 #include "WindowShapePreview.h"
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19
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20 #include <QVBoxLayout>
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21 #include <QComboBox>
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22
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23 #include "base/Preferences.h"
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24
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25 WindowTypeSelector::WindowTypeSelector(WindowType defaultType, QWidget *parent) :
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26 QFrame(parent),
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27 m_windowType(WindowType(999))
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28 {
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29 QVBoxLayout *layout = new QVBoxLayout;
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30 layout->setMargin(0);
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31 setLayout(layout);
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32
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33 // The WindowType enum is in rather a ragbag order -- reorder it here
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34 // in a more sensible order
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35 m_windows = new WindowType[9];
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36 m_windows[0] = HanningWindow;
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37 m_windows[1] = HammingWindow;
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38 m_windows[2] = BlackmanWindow;
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39 m_windows[3] = BlackmanHarrisWindow;
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40 m_windows[4] = NuttallWindow;
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41 m_windows[5] = GaussianWindow;
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42 m_windows[6] = ParzenWindow;
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43 m_windows[7] = BartlettWindow;
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44 m_windows[8] = RectangularWindow;
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45
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46 Preferences *prefs = Preferences::getInstance();
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47
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48 m_windowShape = new WindowShapePreview;
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49
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50 m_windowCombo = new QComboBox;
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51 int min = 0, max = 0, deflt = 0, i = 0;
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52 int window = int(defaultType);
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53 if (window == 999) {
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54 window = prefs->getPropertyRangeAndValue("Window Type", &min, &max,
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55 &deflt);
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56 }
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57 int index = 0;
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58
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59 for (i = 0; i <= 8; ++i) {
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60 m_windowCombo->addItem(prefs->getPropertyValueLabel("Window Type",
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61 m_windows[i]));
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62 if (m_windows[i] == window) index = i;
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63 }
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64
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65 m_windowCombo->setCurrentIndex(index);
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66
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67 layout->addWidget(m_windowShape);
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68 layout->addWidget(m_windowCombo);
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69
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70 connect(m_windowCombo, SIGNAL(currentIndexChanged(int)),
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71 this, SLOT(windowIndexChanged(int)));
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72 windowIndexChanged(index);
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73 }
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74
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75 WindowTypeSelector::~WindowTypeSelector()
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76 {
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77 delete[] m_windows;
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78 }
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79
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80 WindowType
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81 WindowTypeSelector::getWindowType() const
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82 {
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83 return m_windowType;
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84 }
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85
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86 void
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87 WindowTypeSelector::setWindowType(WindowType type)
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88 {
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89 if (type == m_windowType) return;
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90 int index;
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91 for (index = 0; index <= 8; ++index) {
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92 if (m_windows[index] == type) break;
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93 }
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94 if (index <= 8) m_windowCombo->setCurrentIndex(index);
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95 m_windowType = type;
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96 m_windowShape->setWindowType(m_windowType);
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97 }
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98
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99 void
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100 WindowTypeSelector::windowIndexChanged(int index)
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101 {
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102 WindowType type = m_windows[index];
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103 if (type == m_windowType) return;
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104 m_windowType = type;
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105 m_windowShape->setWindowType(m_windowType);
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106 emit windowTypeChanged(type);
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107 }
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108
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