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////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2007-2021 The Octave Project Developers
//
// See the file COPYRIGHT.md in the top-level directory of this
// distribution or <https://octave.org/copyright/>.
//
// This file is part of Octave.
//
// Octave 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 3 of the License, or
// (at your option) any later version.
//
// Octave 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 Octave; see the file COPYING. If not, see
// <https://www.gnu.org/licenses/>.
//
////////////////////////////////////////////////////////////////////////
#if ! defined (octave_gtk_manager_h)
#define octave_gtk_manager_h 1
#include "octave-config.h"
#include <map>
#include <set>
#include <string>
#include "Cell.h"
#include "graphics-toolkit.h"
namespace octave
{
class gtk_manager
{
public:
gtk_manager (void) { }
~gtk_manager (void)
{
unload_all_toolkits ();
}
graphics_toolkit get_toolkit (void) const;
void register_toolkit (const std::string& name);
void unregister_toolkit (const std::string& name);
void load_toolkit (const graphics_toolkit& tk)
{
loaded_toolkits[tk.get_name ()] = tk;
}
void unload_toolkit (const std::string& name)
{
loaded_toolkits.erase (name);
}
graphics_toolkit find_toolkit (const std::string& name) const
{
auto p = loaded_toolkits.find (name);
if (p != loaded_toolkits.end ())
return p->second;
else
return graphics_toolkit ();
}
Cell available_toolkits_list (void) const
{
Cell m (1, available_toolkits.size ());
octave_idx_type i = 0;
for (const auto& tkit : available_toolkits)
m(i++) = tkit;
return m;
}
Cell loaded_toolkits_list (void) const
{
Cell m (1, loaded_toolkits.size ());
octave_idx_type i = 0;
for (const auto& nm_tkit_p : loaded_toolkits)
m(i++) = nm_tkit_p.first;
return m;
}
void unload_all_toolkits (void)
{
while (! loaded_toolkits.empty ())
{
auto p = loaded_toolkits.begin ();
std::string name = p->first;
p->second.close ();
// The toolkit may have unloaded itself. If not, we'll do it here.
if (loaded_toolkits.find (name) != loaded_toolkits.end ())
unload_toolkit (name);
}
}
std::string default_toolkit (void) const { return dtk; }
private:
// The name of the default toolkit.
std::string dtk;
// The list of toolkits that we know about.
std::set<std::string> available_toolkits;
// The list of toolkits we have actually loaded.
std::map<std::string, graphics_toolkit> loaded_toolkits;
};
}
#endif
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