diff layer/Colour3DPlotExporter.h @ 1554:a0b2f3b4dd2f spectrogram-export

Start work on spectrogram export code

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/layer/Colour3DPlotExporter.h	Mon Jan 06 14:46:25 2020 +0000
@@ -0,0 +1,63 @@
+/* -*- 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 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.
+*/
+
+#ifndef COLOUR_3D_PLOT_EXPORTER_H
+#define COLOUR_3D_PLOT_EXPORTER_H
+
+#include "Colour3DPlotRenderer.h"
+
+class Colour3DPlotExporter : public Model
+{
+    Q_OBJECT
+    
+public:
+    struct Sources {
+        // These must all outlive this class, or else discardSources()
+        // must be called
+        const VerticalBinLayer *verticalBinLayer; // always
+        ModelId source; // always; a DenseThreeDimensionalModel
+        ModelId fft; // optionally; an FFTModel; used for phase/peak-freq modes
+        const LayerGeometryProvider *provider; // optionally
+    };
+
+    struct Parameters {
+        Parameters() :
+            binDisplay(BinDisplay::AllBins) { }
+
+        /** Selection of bins to include in the export. */
+        BinDisplay binDisplay;
+    };
+    
+    Colour3DPlotExporter(Sources sources, Parameters parameters) :
+        m_sources(sources),
+        m_params(parameters)
+    { }
+
+    void discardSources() {
+        QMutexLocker locker(&m_mutex);
+        m_sources.verticalBinLayer = nullptr;
+        m_sources.source = {};
+        m_sources.fft = {};
+        m_sources.provider = nullptr;
+    }
+
+    QString toDelimitedDataString(QString, DataExportOptions,
+                                  sv_frame_t, sv_frame_t) const override;
+
+private:
+    Sources m_sources;
+    Parameters m_params;
+};
+
+#endif