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livetrax/gtk2_ardour/input_port_monitor.h

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/*
* Copyright (C) 2021 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 __gtk_ardour_input_port_monitor_h__
#define __gtk_ardour_input_port_monitor_h__
#include <gtkmm/box.h>
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#include <gtkmm/alignment.h>
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#include "gtkmm2ext/cairo_widget.h"
#include "ardour/circular_buffer.h"
#include "ardour/session_handle.h"
namespace ArdourWidgets
{
class FastMeter;
}
class InputPortMonitor : public Gtk::EventBox
{
public:
enum Orientation {
Vertical,
Horizontal
};
InputPortMonitor (ARDOUR::DataType, ARDOUR::samplecnt_t, Orientation);
~InputPortMonitor ();
void clear ();
void update (float, float); // FastMeter
void update (float const*); // EventMeter
void update (ARDOUR::CircularSampleBuffer&); // InputScope
void update (ARDOUR::CircularEventBuffer&); // EventMonitor
private:
class InputScope : public CairoWidget
{
public:
InputScope (ARDOUR::samplecnt_t, int length , int gauge, Orientation);
void update (ARDOUR::CircularSampleBuffer&);
void clear ();
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void parameter_changed (std::string const&);
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protected:
void render (Cairo::RefPtr<Cairo::Context> const&, cairo_rectangle_t*);
void on_size_request (Gtk::Requisition*);
void on_size_allocate (Gtk::Allocation&);
private:
void dpi_reset ();
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int _pos;
ARDOUR::samplecnt_t _rate;
int _min_length;
int _min_gauge;
Orientation _orientation;
float _clip_level;
bool _show_clip;
bool _logscale;
Cairo::RefPtr<Cairo::ImageSurface> _surface;
};
class EventMeter : public CairoWidget
{
public:
EventMeter (Orientation);
void update (float const*);
void clear ();
protected:
void render (Cairo::RefPtr<Cairo::Context> const&, cairo_rectangle_t*);
void on_size_request (Gtk::Requisition*);
private:
void dpi_reset ();
Glib::RefPtr<Pango::Layout> _layout;
float _chn[17];
int _length;
int _extent;
Orientation _orientation;
};
class EventMonitor : public CairoWidget
{
public:
EventMonitor (Orientation);
void update (ARDOUR::CircularEventBuffer&);
void clear ();
protected:
void render (Cairo::RefPtr<Cairo::Context> const&, cairo_rectangle_t*);
void on_size_request (Gtk::Requisition*);
private:
void dpi_reset ();
ARDOUR::CircularEventBuffer::EventList _l;
Glib::RefPtr<Pango::Layout> _layout;
int _width;
int _height;
Orientation _orientation;
};
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void setup_audio_meter ();
void color_handler ();
void parameter_changed (std::string const&);
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Gtk::Box* _box;
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Gtk::Alignment _bin;
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ARDOUR::DataType _dt;
ArdourWidgets::FastMeter* _audio_meter;
InputScope* _audio_scope;
EventMeter* _midi_meter;
EventMonitor* _midi_monitor;
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Orientation _orientation;
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};
#endif