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livetrax/gtk2_ardour/crossfade_edit.h

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/*
* Copyright (C) 2005-2013 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2005 Taybin Rutkin <taybin@taybin.com>
* Copyright (C) 2006 Doug McLain <doug@nostar.net>
* Copyright (C) 2007-2009 David Robillard <d@drobilla.net>
* Copyright (C) 2009-2010 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2017 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_xfade_edit_h__
#define __gtk_ardour_xfade_edit_h__
#include <list>
#include <gtkmm/box.h>
#include <gtkmm/button.h>
#include <gtkmm/radiobutton.h>
#include "canvas/canvas.h"
#include "evoral/Curve.h"
#include "ardour/session_handle.h"
#include "ardour_dialog.h"
namespace ARDOUR
{
class Session;
class AutomationList;
class Crossfade;
}
namespace ArdourCanvas {
class Rectangle;
class Line;
class Polygon;
}
namespace ArdourWaveview {
class WaveView;
}
class CrossfadeEditor : public ArdourDialog
{
public:
CrossfadeEditor (ARDOUR::Session*, std::shared_ptr<ARDOUR::Crossfade>, double miny, double maxy);
~CrossfadeEditor ();
void apply ();
static const double canvas_border;
/* these are public so that a caller/subclass can make them do the right thing. */
Gtk::Button* cancel_button;
Gtk::Button* ok_button;
struct PresetPoint {
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double x;
double y;
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PresetPoint (double a, double b)
: x (a), y (b) {}
};
struct Preset : public std::list<PresetPoint> {
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const char* name;
const char* image_name;
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Preset (const char* n, const char* x) : name (n), image_name (x) {}
};
typedef std::list<Preset*> Presets;
static Presets* fade_in_presets;
static Presets* fade_out_presets;
protected:
bool on_key_press_event (GdkEventKey*);
bool on_key_release_event (GdkEventKey*);
private:
std::shared_ptr<ARDOUR::Crossfade> xfade;
Gtk::VBox vpacker;
struct Point {
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~Point();
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ArdourCanvas::Rectangle* box;
ArdourCanvas::PolyLine* curve;
double x;
double y;
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static const int32_t size;
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void move_to (double x, double y, double xfract, double yfract);
};
struct PointSorter {
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bool operator() (const CrossfadeEditor::Point* a, const CrossfadeEditor::Point *b) {
return a->x < b->x;
}
};
ArdourCanvas::Rectangle* toplevel;
ArdourCanvas::GtkCanvas* canvas;
struct Half {
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ArdourCanvas::PolyLine* line;
ArdourCanvas::Polygon* shading;
std::list<Point*> points;
ARDOUR::AutomationList normative_curve; /* 0 - 1.0, linear */
ARDOUR::AutomationList gain_curve; /* 0 - 2.0, gain mapping */
std::vector<ArdourWaveView::WaveView*> waves;
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Half();
};
enum WhichFade {
In = 0,
Out = 1
};
Half fade[2];
WhichFade current;
bool point_grabbed;
std::vector<Gtk::Button*> fade_out_buttons;
std::vector<Gtk::Button*> fade_in_buttons;
Gtk::VBox vpacker2;
Gtk::Button clear_button;
Gtk::Button revert_button;
Gtk::ToggleButton audition_both_button;
Gtk::ToggleButton audition_left_dry_button;
Gtk::ToggleButton audition_left_button;
Gtk::ToggleButton audition_right_dry_button;
Gtk::ToggleButton audition_right_button;
Gtk::ToggleButton preroll_button;
Gtk::ToggleButton postroll_button;
Gtk::HBox roll_box;
gint event_handler (GdkEvent*);
bool canvas_event (GdkEvent* event);
bool point_event (GdkEvent* event, Point*);
bool curve_event (GdkEvent* event);
void canvas_allocation (Gtk::Allocation&);
void add_control_point (double x, double y);
Point* make_point ();
void redraw ();
double effective_width () const { return canvas->get_allocation().get_width() - (2.0 * canvas_border); }
double effective_height () const { return canvas->get_allocation().get_height() - (2.0 * canvas_border); }
void clear ();
void reset ();
double miny;
double maxy;
Gtk::Table fade_in_table;
Gtk::Table fade_out_table;
void build_presets ();
void apply_preset (Preset*);
Gtk::RadioButton select_in_button;
Gtk::RadioButton select_out_button;
Gtk::HBox curve_button_box;
Gtk::HBox audition_box;
void curve_select_clicked (WhichFade);
double x_coordinate (double& xfract) const;
double y_coordinate (double& yfract) const;
void set (const ARDOUR::AutomationList& alist, WhichFade);
PBD::ScopedConnection* _peaks_ready_connection;
PBD::ScopedConnection state_connection;
void make_waves (std::shared_ptr<ARDOUR::AudioRegion>, WhichFade);
void peaks_ready (std::weak_ptr<ARDOUR::AudioRegion> r, WhichFade);
void _apply_to (std::shared_ptr<ARDOUR::Crossfade> xf);
void setup (std::shared_ptr<ARDOUR::Crossfade>);
void cancel_audition ();
void audition_state_changed (bool);
enum Audition {
Both,
Left,
Right
};
void audition_toggled ();
void audition_right_toggled ();
void audition_right_dry_toggled ();
void audition_left_toggled ();
void audition_left_dry_toggled ();
void audition (Audition);
void audition_both ();
void audition_left_dry ();
void audition_left ();
void audition_right_dry ();
void audition_right ();
void xfade_changed (const PBD::PropertyChange&);
void dump ();
};
#endif /* __gtk_ardour_xfade_edit_h__ */