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livetrax/gtk2_ardour/window_manager.h
Robin Gareus e42699600b
Delete temporary Window Proxy for dialogs
There are two cases:
 (A) Proxy is created first, dialog is created later on demand
 (B) Dialog is created and directly registers its window as proxy

In (B) the dialog is usually on the stack and destroyed when the
ArdourDialog instances leaves scope. In that case ~ArdourDialog()
is called and the proxy remained.

Destroying the proxy does destroy the registered window in ~WindowProxy()
If ArdourDialog's d'tor itself deletes the proxy it would recurse into
itself. Existing APIs e.g. drop_window() likewise delete the window and
cannot be safely called from ~ArdourDialog.
2018-11-29 14:25:22 +01:00

214 lines
4.6 KiB
C++

/*
Copyright (C) 2013 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 __gtk2_ardour_window_manager_h__
#define __gtk2_ardour_window_manager_h__
#include <string>
#include <map>
#include <boost/function.hpp>
#include <glibmm/refptr.h>
#include <sigc++/trackable.h>
#include "gtkmm2ext/bindings.h"
#include "gtkmm2ext/window_proxy.h"
class XMLNode;
namespace Gtk {
class Window;
class Action;
}
namespace Gtkmm2ext {
class VisibilityTracker;
}
namespace ARDOUR {
class Session;
class SessionHandlePtr;
}
namespace WM {
class ProxyBase;
class Manager : public ARDOUR::SessionHandlePtr
{
public:
static Manager& instance();
void register_window (ProxyBase*);
void remove (const ProxyBase*);
void toggle_window (ProxyBase*);
void show_visible () const;
void set_session (ARDOUR::Session*);
void add_state (XMLNode&) const;
/* HACK HACK HACK */
void set_transient_for (Gtk::Window*);
Gtk::Window* transient_parent() const { return current_transient_parent; }
private:
typedef std::list<ProxyBase*> Windows;
Windows _windows;
Glib::RefPtr<Gtk::ActionGroup> window_actions;
Gtk::Window* current_transient_parent;
Manager();
~Manager();
static Manager* _instance;
private:
void window_proxy_was_mapped (ProxyBase*);
void window_proxy_was_unmapped (ProxyBase*);
};
class ProxyBase : public ARDOUR::SessionHandlePtr, public Gtkmm2ext::WindowProxy
{
public:
ProxyBase (const std::string& name, const std::string& menu_name);
ProxyBase (const std::string& name, const std::string& menu_name, const XMLNode&);
virtual ARDOUR::SessionHandlePtr* session_handle () = 0;
protected:
void setup ();
};
class ProxyTemporary: public ProxyBase
{
public:
ProxyTemporary (const std::string& name, Gtk::Window* win);
Gtk::Window* get (bool create = false) {
(void) create;
return _window;
}
Gtk::Window* operator->() {
return _window;
}
ARDOUR::SessionHandlePtr* session_handle ();
void explicit_delete () { _window = 0 ; delete this; }
};
template<typename T>
class ProxyWithConstructor: public ProxyBase
{
public:
ProxyWithConstructor (const std::string& name, const std::string& menu_name, const boost::function<T*()>& c)
: ProxyBase (name, menu_name) , creator (c) {}
ProxyWithConstructor (const std::string& name, const std::string& menu_name, const boost::function<T*()>& c, const XMLNode* node)
: ProxyBase (name, menu_name, *node) , creator (c) {}
Gtk::Window* get (bool create = false) {
if (!_window) {
if (!create) {
return 0;
}
_window = dynamic_cast<Gtk::Window*> (creator ());
if (_window) {
setup ();
}
}
return _window;
}
T* operator->() {
return dynamic_cast<T*> (get (true));
}
ARDOUR::SessionHandlePtr* session_handle () {
/* may return null */
return dynamic_cast<T*> (_window);
}
void set_session(ARDOUR::Session *s) {
SessionHandlePtr::set_session (s);
ARDOUR::SessionHandlePtr* sp = session_handle ();
if (sp) {
sp->set_session (s);
dynamic_cast<T*>(_window)->set_session(s);
}
}
private:
boost::function<T*()> creator;
};
template<typename T>
class Proxy : public ProxyBase
{
public:
Proxy (const std::string& name, const std::string& menu_name)
: ProxyBase (name, menu_name) {}
Proxy (const std::string& name, const std::string& menu_name, const XMLNode* node)
: ProxyBase (name, menu_name, *node) {}
Gtk::Window* get (bool create = false) {
if (!_window) {
if (!create) {
return 0;
}
_window = new T ();
if (_window) {
setup ();
}
}
return _window;
}
T* operator->() {
return dynamic_cast<T*> (get(true));
}
ARDOUR::SessionHandlePtr* session_handle () {
/* may return null */
return dynamic_cast<T*> (_window);
}
void set_session(ARDOUR::Session *s) {
SessionHandlePtr::set_session (s);
ARDOUR::SessionHandlePtr* sp = session_handle ();
if (sp) {
sp->set_session (s);
dynamic_cast<T*>(_window)->set_session(s);
}
}
private:
boost::function<T*()> creator;
};
} /* namespace */
#endif /* __gtk2_ardour_window_manager_h__ */