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livetrax/gtk2_ardour/panner2d.h

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/*
* Copyright (C) 2005-2014 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2005 Taybin Rutkin <taybin@taybin.com>
* Copyright (C) 2009-2011 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2009-2011 David Robillard <d@drobilla.net>
* Copyright (C) 2014-2015 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_panner_2d_h__
#define __ardour_panner_2d_h__
#include <sys/types.h>
#include <map>
#include <vector>
#include <glibmm/refptr.h>
#include <gtkmm/drawingarea.h>
#include <gtkmm/window.h>
#include <gtkmm/box.h>
#include <gtkmm/button.h>
#include <gtkmm/spinbutton.h>
#include <gtkmm/adjustment.h>
#include "pbd/cartesian.h"
#include "ardour_window.h"
namespace ARDOUR {
class PannerShell;
}
namespace Gtk {
class Menu;
class CheckMenuItem;
}
class Panner2dWindow;
class Panner2d : public Gtk::DrawingArea
{
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public:
Panner2d (std::shared_ptr<ARDOUR::PannerShell>, int32_t height);
~Panner2d ();
void allow_target_motion (bool);
int add_speaker (const PBD::AngularVector&);
int add_signal (const char* text, const PBD::AngularVector&);
void move_signal (int which, const PBD::AngularVector&);
void reset (uint32_t n_inputs);
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void set_send_drawing_mode (bool);
std::shared_ptr<ARDOUR::PannerShell> get_panner_shell() const { return panner_shell; }
void cart_to_gtk (PBD::CartesianVector&) const;
void gtk_to_cart (PBD::CartesianVector&) const;
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protected:
bool on_expose_event (GdkEventExpose *);
bool on_button_press_event (GdkEventButton *);
bool on_button_release_event (GdkEventButton *);
bool on_motion_notify_event (GdkEventMotion *);
bool on_scroll_event (GdkEventScroll *);
void on_size_allocate (Gtk::Allocation& alloc);
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private:
class Target {
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public:
PBD::AngularVector position;
bool visible;
std::string text;
Target (const PBD::AngularVector&, const char* txt = 0);
~Target ();
void set_text (const char*);
void set_selected (bool yn) {
_selected = yn;
}
bool selected() const {
return _selected;
}
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private:
bool _selected;
};
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struct ColorScheme {
uint32_t background;
uint32_t crosshairs;
uint32_t signalcircle_border;
uint32_t signalcircle;
uint32_t diffusion;
uint32_t diffusion_inv;
uint32_t pos_outline;
uint32_t pos_fill;
uint32_t signal_outline;
uint32_t signal_fill;
uint32_t speaker_fill;
uint32_t text;
uint32_t send_bg;
uint32_t send_pan;
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};
static ColorScheme colors;
static void set_colors ();
static bool have_colors;
void color_handler ();
std::shared_ptr<ARDOUR::PannerShell> panner_shell;
Glib::RefPtr<Pango::Layout> layout;
typedef std::vector<Target*> Targets;
Targets speakers;
Targets signals;
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Target position;
Target *drag_target;
int width;
int height;
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double radius;
double border;
double hoffset;
double voffset;
double last_width;
bool did_move;
bool have_elevation;
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bool _send_mode;
Target *find_closest_object (gdouble x, gdouble y, bool& is_signal);
gint handle_motion (gint, gint, GdkModifierType);
void toggle_bypass ();
void handle_state_change ();
void handle_position_change ();
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void label_signals ();
PBD::ScopedConnectionList panshell_connections;
PBD::ScopedConnectionList panner_connections;
/* cartesian coordinates in GTK units ; adjust to same but on a circle of radius 1.0
and centered in the middle of our area
*/
void clamp_to_circle (double& x, double& y);
void sphere_project (double& x, double& y, double& z);
};
class Panner2dWindow : public ArdourWindow
{
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public:
Panner2dWindow (std::shared_ptr<ARDOUR::PannerShell>, int32_t height, uint32_t inputs);
void reset (uint32_t n_inputs);
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private:
Panner2d widget;
Gtk::HBox hpacker;
Gtk::VBox button_box;
Gtk::ToggleButton bypass_button;
Gtk::VBox spinner_box;
Gtk::VBox left_side;
Gtk::Adjustment width_adjustment;
Gtk::SpinButton width_spinner;
PBD::ScopedConnectionList panshell_connections;
PBD::ScopedConnectionList panvalue_connections;
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void set_bypassed();
void set_width();
void pannable_handler ();
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void bypass_toggled ();
void width_changed ();
bool on_key_press_event (GdkEventKey*);
bool on_key_release_event (GdkEventKey*);
};
#endif /* __ardour_panner_2d_h__ */