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livetrax/gtk2_ardour/input_port_monitor.h
Robin Gareus fb8112eb7e
Fix crash when changing UI scale on Windows
When the UI scale changes without the Recorder UI being shown
at least once, the Widgets have not yet been realized, size-groups
not evaluated, and a widget size of 1x1 is assumed.
2021-08-10 04:15:15 +02:00

138 lines
3.7 KiB
C++

/*
* 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>
#include <gtkmm/alignment.h>
#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 ();
void parameter_changed (std::string const&);
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 ();
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;
};
void setup_audio_meter ();
void color_handler ();
void parameter_changed (std::string const&);
Gtk::Box* _box;
Gtk::Alignment _bin;
ARDOUR::DataType _dt;
ArdourWidgets::FastMeter* _audio_meter;
InputScope* _audio_scope;
EventMeter* _midi_meter;
EventMonitor* _midi_monitor;
Orientation _orientation;
};
#endif