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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 and QMUL.
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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 "MainWindow.h"
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17
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18 #include "system/System.h"
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19 #include "system/Init.h"
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20 #include "base/TempDirectory.h"
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21 #include "base/PropertyContainer.h"
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22 #include "base/Preferences.h"
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23 #include "widgets/TipDialog.h"
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24
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25 #include <QMetaType>
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26 #include <QApplication>
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27 #include <QDesktopWidget>
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28 #include <QMessageBox>
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29 #include <QTranslator>
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30 #include <QLocale>
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31 #include <QSettings>
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32 #include <QIcon>
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33 #include <QSessionManager>
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34 #include <QDir>
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35 #include <QSplashScreen>
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36
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37 #include <iostream>
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38 #include <signal.h>
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39
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40 #ifdef HAVE_FFTW3F
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41 #include <fftw3.h>
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42 #endif
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43
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44 /*! \mainpage Sonic Visualiser
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45
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46 \section interesting Summary of interesting classes
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47
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48 - Data models: Model and subclasses, e.g. WaveFileModel
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49
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50 - Graphical layers: Layer and subclasses, displayed on View and its
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51 subclass widgets.
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52
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53 - Main window class, document class, and file parser: MainWindow,
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54 Document, SVFileReader
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55
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56 - Turning one model (e.g. audio) into another (e.g. more audio, or a
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57 curve extracted from it): Transform, encapsulating the data that need
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58 to be stored to be able to reproduce a given transformation;
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59 TransformFactory, for discovering the available types of transform;
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60 ModelTransformerFactory, ModelTransformer and subclasses, providing
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61 the mechanisms for applying transforms to data models
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62
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63 - Creating the plugins used by transforms: RealTimePluginFactory,
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64 FeatureExtractionPluginFactory. See also the API documentation for
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65 Vamp feature extraction plugins at
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66 http://www.vamp-plugins.org/code-doc/.
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67
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68 - File reading and writing code: AudioFileReader and subclasses,
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69 WavFileWriter, DataFileReader, SVFileReader
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70
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71 - FFT calculation and cacheing: FFTModel, FFTDataServer
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72
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73 - Widgets that show groups of editable properties: PropertyBox for
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74 layer properties (contained in a PropertyStack), PluginParameterBox
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75 for plugins (contained in a PluginParameterDialog)
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76
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77 - Audio playback: AudioCallbackPlaySource and subclasses,
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78 AudioCallbackPlayTarget and subclasses, AudioGenerator
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79
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80 \section model Data sources: the Model hierarchy
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81
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82 A Model is something containing, or knowing how to obtain, data.
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83
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84 For example, WaveFileModel is a model that knows how to get data
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85 from an audio file; SparseTimeValueModel is a model containing
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86 editable "curve" data.
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87
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88 Models typically subclass one of a number of abstract subclasses of
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89 Model. For example, WaveFileModel subclasses DenseTimeValueModel,
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90 which describes an interface for models that have a value at each
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91 time point for a given sampling resolution. (Note that
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92 WaveFileModel does not actually read the files itself: it uses
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93 AudioFileReader classes for that. It just makes data from the
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94 files available in a Model.) SparseTimeValueModel uses the
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95 SparseModel template class, which provides most of the
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96 implementation for models that contain a series of points of some
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97 sort -- also used by NoteModel, TextModel, and
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98 SparseOneDimensionalModel.
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99
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100 Everything that goes on the screen originates from a model, via a
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101 layer (see below). The models are contained in a Document object.
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102 There is no containment hierarchy or ordering of models in the
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103 document. One model is the main model, which defines the sample
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104 rate for playback.
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105
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106 A model may also be marked as a "derived" model, which means it was
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107 generated from another model using some transform (feature
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108 extraction or effect plugin, etc) -- the idea being that they can
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109 be re-generated using the same transform if a new source model is
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110 loaded.
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111
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112 \section layer Things that can display data: the Layer hierarchy
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113
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114 A Layer is something that knows how to draw parts of a model onto a
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115 timeline.
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116
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117 For example, WaveformLayer is a layer which draws waveforms, based
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118 on WaveFileModel; TimeValueLayer draws curves, based on
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119 SparseTimeValueModel; SpectrogramLayer draws spectrograms, based on
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120 WaveFileModel (via FFTModel).
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121
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122 The most basic functions of a layer are: to draw itself onto a
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123 Pane, against a timeline on the x axis; and to permit user
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124 interaction. If you were thinking of adding the capability to
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125 display a new sort of something, then you would want to add a new
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126 layer type. (You may also need a new model type, depending on
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127 whether any existing model can capture the data you need.)
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128 Depending on the sort of data in question, there are various
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129 existing layers that might be appropriate to start from -- for
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130 example, a layer that displays images that the user has imported
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131 and associated with particular times might have something in common
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132 with the existing TextLayer which displays pieces of text that are
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133 associated with particular times.
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134
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135 Although layers are visual objects, they are contained in the
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136 Document in Sonic Visualiser rather than being managed together
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137 with display widgets. The Sonic Visualiser file format has
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138 separate data and layout sections, and the layers are defined in
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139 the data section and then referred to in the layout section which
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140 determines which layers may go on which panes (see Pane below).
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141
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142 Once a layer class is defined, some basic data about it needs to be
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143 set up in the LayerFactory class, and then it will appear in the
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144 menus and so on on the main window.
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145
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146 \section view Widgets that are used to show layers: The View hierarchy
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147
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148 A View is a widget that displays a stack of layers. The most
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149 important subclass is Pane, the widget that is used to show most of
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150 the data in the main window of Sonic Visualiser.
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151
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152 All a pane really does is contain a set of layers and get them to
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153 render themselves (one on top of the other, with the topmost layer
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154 being the one that is currently interacted with), cache the
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155 results, negotiate user interaction with them, and so on. This is
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156 generally fiddly, if not especially interesting. Panes are
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157 strictly layout objects and are not stored in the Document class;
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158 instead the MainWindow contains a PaneStack widget (the widget that
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159 takes up most of Sonic Visualiser's main window) which contains a
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160 set of panes stacked vertically.
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161
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162 Another View subclass is Overview, which is the widget that
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163 contains that green waveform showing the entire file at the bottom
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164 of the window.
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165
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166 */
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167
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168 static QMutex cleanupMutex;
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169
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170 static void
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171 signalHandler(int /* signal */)
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172 {
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173 // Avoid this happening more than once across threads
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174
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175 cleanupMutex.lock();
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176 std::cerr << "signalHandler: cleaning up and exiting" << std::endl;
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177 TempDirectory::getInstance()->cleanup();
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178 exit(0); // without releasing mutex
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179 }
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180
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181 class SVApplication : public QApplication
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182 {
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183 public:
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184 SVApplication(int argc, char **argv) :
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185 QApplication(argc, argv),
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186 m_mainWindow(0) { }
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187 virtual ~SVApplication() { }
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188
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189 void setMainWindow(MainWindow *mw) { m_mainWindow = mw; }
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190 void releaseMainWindow() { m_mainWindow = 0; }
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191
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192 virtual void commitData(QSessionManager &manager) {
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193 if (!m_mainWindow) return;
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194 bool mayAskUser = manager.allowsInteraction();
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195 bool success = m_mainWindow->commitData(mayAskUser);
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196 manager.release();
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197 if (!success) manager.cancel();
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198 }
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199
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200 protected:
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201 MainWindow *m_mainWindow;
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202 };
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203
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204 int
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205 main(int argc, char **argv)
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206 {
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207 SVApplication application(argc, argv);
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208
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209 QStringList args = application.arguments();
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210
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211 signal(SIGINT, signalHandler);
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212 signal(SIGTERM, signalHandler);
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213
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214 #ifndef Q_WS_WIN32
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215 signal(SIGHUP, signalHandler);
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216 signal(SIGQUIT, signalHandler);
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217 #endif
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218
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219 svSystemSpecificInitialisation();
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220
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221 bool audioOutput = true;
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222 bool oscSupport = true;
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223
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224 if (args.contains("--help") || args.contains("-h") || args.contains("-?")) {
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225 std::cerr << QApplication::tr(
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226 "\nSonic Visualiser is a program for viewing and exploring audio data\nfor semantic music analysis and annotation.\n\nUsage:\n\n %1 [--no-audio] [--no-osc] [<file> ...]\n\n --no-audio: Do not attempt to open an audio output device\n --no-osc: Do not provide an Open Sound Control port for remote control\n <file>: One or more Sonic Visualiser (.sv) and audio files may be provided.\n").arg(argv[0]).toStdString() << std::endl;
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227 exit(2);
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228 }
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229
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230 if (args.contains("--no-audio")) audioOutput = false;
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231 if (args.contains("--no-osc")) oscSupport = false;
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232
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233 QApplication::setOrganizationName("sonic-visualiser");
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234 QApplication::setOrganizationDomain("sonicvisualiser.org");
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235 QApplication::setApplicationName(QApplication::tr("Sonic Visualiser"));
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236
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237 QPixmap pixmap(":/icons/sv-splash.png");
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238 QSplashScreen splash(pixmap);
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239
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240 QSettings settings;
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241
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242 settings.beginGroup("Preferences");
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243 if (settings.value("show-splash", true).toBool()) {
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244 splash.show();
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245 application.processEvents();
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246 }
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247 settings.endGroup();
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248
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249 QIcon icon;
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250 int sizes[] = { 16, 22, 24, 32, 48, 64, 128 };
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251 for (int i = 0; i < sizeof(sizes)/sizeof(sizes[0]); ++i) {
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252 icon.addFile(QString(":icons/sv-%1x%2.png").arg(sizes[i]).arg(sizes[i]));
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253 }
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254 QApplication::setWindowIcon(icon);
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255
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256 QString language = QLocale::system().name();
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257
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258 QTranslator qtTranslator;
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259 QString qtTrName = QString("qt_%1").arg(language);
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260 std::cerr << "Loading " << qtTrName.toStdString() << "..." << std::endl;
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261 bool success = false;
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262 if (!(success = qtTranslator.load(qtTrName))) {
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263 QString qtDir = getenv("QTDIR");
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264 if (qtDir != "") {
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265 success = qtTranslator.load
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266 (qtTrName, QDir(qtDir).filePath("translations"));
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267 }
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268 }
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269 if (!success) {
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270 std::cerr << "Failed to load Qt translation for locale" << std::endl;
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271 }
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272 application.installTranslator(&qtTranslator);
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273
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274 QTranslator svTranslator;
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275 QString svTrName = QString("sonic-visualiser_%1").arg(language);
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276 std::cerr << "Loading " << svTrName.toStdString() << "..." << std::endl;
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277 svTranslator.load(svTrName, ":i18n");
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278 application.installTranslator(&svTranslator);
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279
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280 StoreStartupLocale();
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281
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282 // Permit size_t and PropertyName to be used as args in queued signal calls
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283 qRegisterMetaType<size_t>("size_t");
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284 qRegisterMetaType<PropertyContainer::PropertyName>("PropertyContainer::PropertyName");
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285
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286 MainWindow *gui = new MainWindow(audioOutput, oscSupport);
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287 application.setMainWindow(gui);
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288 QObject::connect(gui, SIGNAL(hideSplash()), &splash, SLOT(hide()));
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289
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290 QDesktopWidget *desktop = QApplication::desktop();
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291 QRect available = desktop->availableGeometry();
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292
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293 int width = available.width() * 2 / 3;
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294 int height = available.height() / 2;
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295 if (height < 450) height = available.height() * 2 / 3;
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296 if (width > height * 2) width = height * 2;
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297
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298 settings.beginGroup("MainWindow");
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299 QSize size = settings.value("size", QSize(width, height)).toSize();
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300 gui->resize(size);
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301 if (settings.contains("position")) {
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302 gui->move(settings.value("position").toPoint());
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303 }
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304 settings.endGroup();
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305
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306 gui->show();
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307
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308 // The MainWindow class seems to have trouble dealing with this if
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309 // it tries to adapt to this preference before the constructor is
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310 // complete. As a lazy hack, apply it explicitly from here
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311 gui->preferenceChanged("Property Box Layout");
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312
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313 bool haveSession = false;
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314 bool haveMainModel = false;
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315 bool havePriorCommandLineModel = false;
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316
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317 for (QStringList::iterator i = args.begin(); i != args.end(); ++i) {
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318
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319 MainWindow::FileOpenStatus status = MainWindow::FileOpenFailed;
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320
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321 if (i == args.begin()) continue;
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322 if (i->startsWith('-')) continue;
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323
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324 QString path = *i;
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325
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326 if (path.endsWith("sv")) {
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327 if (!haveSession) {
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328 status = gui->openSessionFile(path);
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329 if (status == MainWindow::FileOpenSucceeded) {
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330 haveSession = true;
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331 haveMainModel = true;
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332 }
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333 } else {
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334 std::cerr << "WARNING: Ignoring additional session file argument \"" << path.toStdString() << "\"" << std::endl;
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335 status = MainWindow::FileOpenSucceeded;
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336 }
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337 }
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338 if (status != MainWindow::FileOpenSucceeded) {
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339 if (!haveMainModel) {
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340 status = gui->open(path, MainWindow::ReplaceMainModel);
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341 if (status == MainWindow::FileOpenSucceeded) {
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342 haveMainModel = true;
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343 }
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344 } else {
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345 if (haveSession && !havePriorCommandLineModel) {
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346 status = gui->open(path, MainWindow::AskUser);
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347 if (status == MainWindow::FileOpenSucceeded) {
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348 havePriorCommandLineModel = true;
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349 }
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350 } else {
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351 status = gui->open(path, MainWindow::CreateAdditionalModel);
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352 }
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Chris@54
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353 }
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354 }
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355 if (status == MainWindow::FileOpenFailed) {
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356 QMessageBox::critical
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357 (gui, QMessageBox::tr("Failed to open file"),
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358 QMessageBox::tr("File or URL \"%1\" could not be opened").arg(path));
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359 }
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Chris@180
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360 }
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361
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362 #ifdef HAVE_FFTW3F
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363 settings.beginGroup("FFTWisdom");
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Chris@215
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364 QString wisdom = settings.value("wisdom").toString();
|
Chris@215
|
365 if (wisdom != "") {
|
Chris@215
|
366 fftwf_import_wisdom_from_string(wisdom.toLocal8Bit().data());
|
Chris@215
|
367 }
|
Chris@215
|
368 settings.endGroup();
|
Chris@215
|
369 #endif
|
Chris@180
|
370
|
Chris@231
|
371 splash.finish(gui);
|
Chris@180
|
372
|
Chris@123
|
373 /*
|
Chris@120
|
374 TipDialog tipDialog;
|
Chris@120
|
375 if (tipDialog.isOK()) {
|
Chris@120
|
376 tipDialog.exec();
|
Chris@120
|
377 }
|
Chris@123
|
378 */
|
Chris@0
|
379 int rv = application.exec();
|
Chris@222
|
380 std::cerr << "application.exec() returned " << rv << std::endl;
|
Chris@0
|
381
|
Chris@0
|
382 cleanupMutex.lock();
|
Chris@0
|
383 TempDirectory::getInstance()->cleanup();
|
Chris@222
|
384
|
Chris@11
|
385 application.releaseMainWindow();
|
Chris@5
|
386
|
Chris@215
|
387 #ifdef HAVE_FFTW3F
|
Chris@215
|
388 char *cwisdom = fftwf_export_wisdom_to_string();
|
Chris@215
|
389 if (cwisdom) {
|
Chris@215
|
390 settings.beginGroup("FFTWisdom");
|
Chris@215
|
391 settings.setValue("wisdom", cwisdom);
|
Chris@215
|
392 settings.endGroup();
|
Chris@215
|
393 fftwf_free(cwisdom);
|
Chris@215
|
394 }
|
Chris@215
|
395 #endif
|
Chris@215
|
396
|
Chris@222
|
397 delete gui;
|
Chris@222
|
398
|
Chris@0
|
399 return rv;
|
Chris@0
|
400 }
|