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/*
* Copyright (C) 2008-2011 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2009 David Robillard <d@drobilla.net>
* Copyright (C) 2016 Robin Gareus <robin@gareus.org>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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);
bool on_motion_notify_event (GdkEventMotion*);
bool on_leave_notify_event (GdkEventCrossing*);
bool on_button_press_event (GdkEventButton*) { return true; }
void on_size_request (Gtk::Requisition* requisition);
void on_size_allocate (Gtk::Allocation & alloc);
FFTResult *prepareResult (Gdk::Color color, std::string trackname);
void set_show_minmax (bool v) { _show_minmax = v; redraw (); }
void set_show_normalized (bool v) { _show_normalized = v; redraw (); }
void set_show_proportioanl(bool v) { _show_proportional = v; redraw (); }
private:
void update_size ();
void setWindowSize_internal (int windowSize);
int draw_scales (cairo_t*);
static const int minScaleWidth = 512;
static const int minScaleHeight = 420;
static const int hl_margin = 40; // this should scale with font (dBFS labels)
static const int hr_margin = 12;
static const int v_margin = 12;
int currentScaleWidth;
int width;
int height;
int _yoff;
int _ann_x;
int _ann_y;
cairo_rectangle_t _ann_area;
unsigned int _windowSize;
unsigned int _dataSize;
Glib::RefPtr<Pango::Layout> layout;
cairo_surface_t* _surface;
AnalysisWindow *_a_window;
fftwf_plan _plan;
float* _out;
float* _in;
float* _hanning;
int* _logScale;
bool _show_minmax;
bool _show_normalized;
bool _show_proportional;
float _fft_start;
float _fft_end;
float _fft_log_base;
friend class FFTResult;
};
#endif /* __ardour_fft_graph_h */
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