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livetrax/libs/surfaces/contourdesign/contourdesign.h

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/*
* Copyright (C) 2019 Johannes Mueller <github@johannes-mueller.org>
* Copyright (C) 2019 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_contourdesign_control_protocol_h
#define ardour_contourdesign_control_protocol_h
#include <string>
#include <vector>
#include <boost/shared_ptr.hpp>
#include <glibmm/main.h>
#define ABSTRACT_UI_EXPORTS
#include "pbd/abstract_ui.h"
#include "ardour/types.h"
#include "control_protocol/control_protocol.h"
struct libusb_device_handle;
struct libusb_transfer;
class ContourDesignGUI;
namespace ArdourSurface {
struct ContourDesignControlUIRequest : public BaseUI::BaseRequestObject {
public:
ContourDesignControlUIRequest () {}
~ContourDesignControlUIRequest () {}
};
enum JumpUnit {
SECONDS = 0,
BEATS = 1,
BARS = 2
};
struct JumpDistance {
JumpDistance () : value (1.0), unit (BEATS) {}
JumpDistance (double v, JumpUnit u) : value (v), unit (u) {}
JumpDistance (const JumpDistance& o) : value (o.value), unit (o.unit) {}
JumpDistance& operator= (const JumpDistance& o) {
value = o.value;
unit = o.unit;
return *this;
}
double value;
JumpUnit unit;
};
class ButtonBase;
class ContourDesignControlProtocol
: public ARDOUR::ControlProtocol
, public AbstractUI<ContourDesignControlUIRequest>
{
public:
ContourDesignControlProtocol (ARDOUR::Session &);
virtual ~ContourDesignControlProtocol ();
enum DeviceType {
None = 0,
ShuttlePRO,
ShuttleXpress
};
DeviceType device_type() const { return _device_type; }
static bool probe ();
static void* request_factory (uint32_t);
int set_active (bool yn);
XMLNode& get_state ();
int set_state (const XMLNode&, int version);
void stripable_selection_changed () {}
void handle_event ();
static const int num_shuttle_speeds = 7;
void prev_marker_keep_rolling ();
void next_marker_keep_rolling ();
void jump_forward (JumpDistance dist);
void jump_backward (JumpDistance dist);
boost::shared_ptr<ButtonBase> make_button_action (std::string action_string);
int usb_errorcode () const { return _error; }
bool keep_rolling () const { return _keep_rolling; }
void set_keep_rolling (bool kr) { _keep_rolling = kr; }
bool test_mode () const { return _test_mode; }
void set_test_mode (bool tm) { _test_mode = tm; }
int get_button_count() const { return _button_actions.size(); }
const boost::shared_ptr<ButtonBase> get_button_action (unsigned int index) const;
void set_button_action (unsigned int index, const boost::shared_ptr<ButtonBase> btn_act);
JumpDistance jog_distance () const { return _jog_distance; }
void set_jog_distance (JumpDistance jd) { _jog_distance = jd; }
void set_shuttle_speed (unsigned int index, double speed);
double shuttle_speed (unsigned int index) const {
return _shuttle_speeds[index];
}
PBD::Signal1<void, unsigned short> ButtonPress;
PBD::Signal1<void, unsigned short> ButtonRelease;
private:
void do_request (ContourDesignControlUIRequest*);
void start ();
void stop ();
bool has_editor () const { return true; }
void* get_gui () const;
void tear_down_gui ();
void thread_init ();
int acquire_device ();
void release_device ();
void setup_default_button_actions ();
void handle_button_press (unsigned short btn);
void handle_button_release (unsigned short btn);
void jog_event_backward ();
void jog_event_forward ();
void shuttle_event (int position);
bool wait_for_event ();
GSource* _io_source;
libusb_device_handle* _dev_handle;
libusb_transfer* _usb_transfer;
bool _supposed_to_quit;
unsigned char _buf[5];
DeviceType _device_type;
bool _shuttle_was_zero, _was_rolling_before_shuttle;
struct State {
int8_t shuttle;
uint8_t jog;
uint16_t buttons;
};
State _state;
bool _test_mode;
// Config stuff
bool _keep_rolling;
std::vector<double> _shuttle_speeds;
JumpDistance _jog_distance;
std::vector<boost::shared_ptr<ButtonBase> > _button_actions;
mutable ContourDesignGUI* _gui;
void build_gui ();
int _error;
bool _needs_reattach;
};
class ButtonBase
{
public:
ButtonBase (ContourDesignControlProtocol& spc) : _spc (spc) {}
virtual ~ButtonBase () {}
virtual void execute () = 0;
virtual XMLNode& get_state (XMLNode& node) const = 0;
protected:
ContourDesignControlProtocol& _spc;
};
class ButtonJump : public ButtonBase
{
public:
ButtonJump (JumpDistance dist, ContourDesignControlProtocol& ccp)
: ButtonBase (ccp)
, _dist (dist) {}
~ButtonJump () {}
void execute ();
JumpDistance get_jump_distance () const { return _dist; };
XMLNode& get_state (XMLNode& node) const;
private:
JumpDistance _dist;
};
class ButtonAction : public ButtonBase
{
public:
ButtonAction (const std::string as, ContourDesignControlProtocol& ccp)
: ButtonBase (ccp)
, _action_string (as) {}
~ButtonAction () {}
void execute ();
std::string get_path () const { return _action_string; }
XMLNode& get_state (XMLNode& node) const;
private:
const std::string _action_string;
};
} // namespace
#endif /* ardour_contourdesign_control_protocol_h */