13
0
livetrax/gtk2_ardour/crossfade_edit.h

196 lines
4.5 KiB
C
Raw Normal View History

#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 <libgnomecanvas/libgnomecanvas.h>
#include <ardour/curve.h>
#include "ardour_dialog.h"
namespace ARDOUR
{
class Session;
class Curve;
class Crossfade;
}
class CrossfadeEditor : public ArdourDialog
{
public:
CrossfadeEditor (ARDOUR::Session&, 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 {
double x;
double y;
PresetPoint (double a, double b)
: x (a), y (b) {}
};
struct Preset : public list<PresetPoint> {
const gchar** xpm;
Preset (const gchar** x)
: xpm (x) {}
};
typedef list<Preset*> Presets;
static Presets* fade_in_presets;
static Presets* fade_out_presets;
private:
ARDOUR::Crossfade& xfade;
ARDOUR::Session& session;
Gtk::VBox vpacker;
struct Point {
~Point();
GnomeCanvasItem* box;
GnomeCanvasItem* curve;
double x;
double y;
static const int32_t size;
void move_to (double x, double y, double xfract, double yfract);
};
struct PointSorter
{
bool operator() (const CrossfadeEditor::Point* a, const CrossfadeEditor::Point *b) {
return a->x < b->x;
}
};
GtkWidget* _canvas;
GnomeCanvasItem* toplevel;
Gtk::Widget* canvas;
struct Half {
GnomeCanvasItem* line;
GnomeCanvasItem* shading;
list<Point*> points;
ARDOUR::Curve normative_curve; /* 0 - 1.0, linear */
ARDOUR::Curve gain_curve; /* 0 - 2.0, gain mapping */
vector<GnomeCanvasItem*> waves;
Half();
};
enum WhichFade {
In = 0,
Out = 1
};
Half fade[2];
WhichFade current;
bool point_grabbed;
vector<Gtk::Button*> fade_out_buttons;
vector<Gtk::Button*> fade_in_buttons;
Gtk::HBox action_box;
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*);
static gint _canvas_event (GnomeCanvasItem*, GdkEvent* event, gpointer data);
static gint _point_event (GnomeCanvasItem*, GdkEvent* event, gpointer data);
static gint _curve_event (GnomeCanvasItem*, GdkEvent* event, gpointer data);
gint canvas_event (GnomeCanvasItem*, GdkEvent* event);
gint point_event (GnomeCanvasItem*, GdkEvent* event);
gint curve_event (GnomeCanvasItem*, GdkEvent* event);
void canvas_allocation (GtkAllocation*);
void add_control_point (double x, double y);
Point* make_point ();
void redraw ();
double effective_width () const { return _canvas->allocation.width - (2.0 * canvas_border); }
double effective_height () const { return _canvas->allocation.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::Curve& alist, WhichFade);
void make_waves (ARDOUR::AudioRegion&, WhichFade);
void peaks_ready (ARDOUR::AudioRegion* r, WhichFade);
void _apply_to (ARDOUR::Crossfade* xf);
void setup (ARDOUR::Crossfade*);
void cancel_audition ();
void audition_state_changed (bool);
void audition_toggled ();
void audition_right_toggled ();
void audition_right_dry_toggled ();
void audition_left_toggled ();
void audition_left_dry_toggled ();
void audition_both ();
void audition_left_dry ();
void audition_left ();
void audition_right_dry ();
void audition_right ();
void xfade_changed (ARDOUR::Change);
void dump ();
};
#endif /* __gtk_ardour_xfade_edit_h__ */