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/*
Copyright (C) 2006 Paul Davis
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.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __ardour_fft_graph_h
#define __ardour_fft_graph_h
#include <ardour/types.h>
#include <fftw3.h>
#include <gtkmm/drawingarea.h>
#include <gtkmm/treemodel.h>
#include <gdkmm/color.h>
#include <glibmm/refptr.h>
#include <string>
#include "fft_result.h"
class AnalysisWindow;
class FFTGraph : public Gtk::DrawingArea
{
public:
FFTGraph(int windowSize);
~FFTGraph();
void set_analysis_window(AnalysisWindow *a_window);
int windowSize() const { return _windowSize; }
void setWindowSize(int windowSize);
void redraw();
bool on_expose_event (GdkEventExpose* event);
void on_size_request(Gtk::Requisition* requisition);
void on_size_allocate(Gtk::Allocation & alloc);
FFTResult *prepareResult(Gdk::Color color, std::string trackname);
private:
void setWindowSize_internal(int windowSize);
void draw_scales(Glib::RefPtr<Gdk::Window> window);
static const int scaleWidth = 512;
static const int scaleHeight = 420;
static const int h_margin = 20;
static const int v_margin = 20;
int width;
int height;
void analyze(float *window, float *composite);
int _windowSize;
int _dataSize;
Glib::RefPtr<Pango::Layout> layout;
Glib::RefPtr<Gdk::GC> graph_gc;
AnalysisWindow *_a_window;
fftwf_plan _plan;
float *_out;
float *_in;
float *_hanning;
int *_logScale;
friend class FFTResult;
};
#endif /* __ardour_fft_graph_h */
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