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/*
Copyright (C) 2000-2007 Paul Davis
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __pbd_base_ui_h__
#define __pbd_base_ui_h__
#include <string>
#include <stdint.h>
#include <sigc++/slot.h>
#include <sigc++/trackable.h>
#include <glibmm/thread.h>
#include <glibmm/main.h>
#include "pbd/crossthread.h"
class BaseUI : virtual public sigc::trackable {
public:
BaseUI (const std::string& name);
virtual ~BaseUI();
BaseUI* base_instance() { return base_ui_instance; }
Glib::RefPtr<Glib::MainLoop> main_loop() const { return _main_loop; }
Glib::Thread* event_loop_thread() const { return run_loop_thread; }
bool caller_is_self () const { return Glib::Thread::self() == run_loop_thread; }
std::string name() const { return _name; }
bool ok() const { return _ok; }
enum RequestType {
range_guarantee = ~0
};
struct BaseRequestObject {
RequestType type;
sigc::slot<void> the_slot;
};
static RequestType new_request_type();
static RequestType CallSlot;
void run ();
void quit ();
virtual void call_slot (sigc::slot<void> theSlot) = 0;
protected:
CrossThreadChannel request_channel;
bool _ok;
Glib::RefPtr<Glib::MainLoop> _main_loop;
Glib::Thread* run_loop_thread;
virtual void thread_init () {};
bool request_handler (Glib::IOCondition);
virtual void handle_ui_requests () = 0;
private:
std::string _name;
BaseUI* base_ui_instance;
static uint64_t rt_bit;
int setup_request_pipe ();
void main_thread ();
};
#endif /* __pbd_base_ui_h__ */
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