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/*
* DISTRHO Plugin Framework (DPF)
* Copyright (C) 2012-2014 Filipe Coelho <falktx@falktx.com>
*
* Permission to use, copy, modify, and/or distribute this software for any purpose with
* or without fee is hereby granted, provided that the above copyright notice and this
* permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
* TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef DGL_NTK_APP_HPP_INCLUDED
#define DGL_NTK_APP_HPP_INCLUDED
#include "../Base.hpp"
#ifdef override
# define override_defined
# undef override
#endif
#include <list>
#include <FL/Fl.H>
#include <FL/Fl_Double_Window.H>
#include <FL/Fl_Shared_Image.H>
#include <FL/x.H>
#ifdef override_defined
# define override
# undef override_defined
#endif
START_NAMESPACE_DGL
class NtkWindow;
// -----------------------------------------------------------------------
/**
DGL compatible App class that uses NTK instead of OpenGL.
@see App
*/
class NtkApp
{
public:
/**
Constructor.
*/
NtkApp()
: fIsRunning(true),
fWindows()
{
static bool initialized = false;
if (! initialized)
{
initialized = true;
fl_register_images();
#ifdef DISTRHO_OS_LINUX
fl_open_display();
#endif
}
}
/**
Destructor.
*/
~NtkApp()
{
DISTRHO_SAFE_ASSERT(! fIsRunning);
fWindows.clear();
}
/**
Idle function.
This calls the NTK event-loop once (and all idle callbacks).
*/
void idle()
{
Fl::check();
Fl::flush();
}
/**
Run the application event-loop until all Windows are closed.
@note: This function is meant for standalones only, *never* call this from plugins.
*/
void exec()
{
fIsRunning = true;
Fl::run();
fIsRunning = false;
}
/**
Quit the application.
This stops the event-loop and closes all Windows.
*/
void quit()
{
fIsRunning = false;
for (std::list<Fl_Double_Window*>::reverse_iterator rit = fWindows.rbegin(), rite = fWindows.rend(); rit != rite; ++rit)
{
Fl_Double_Window* const window(*rit);
window->hide();
}
}
/**
Check if the application is about to quit.
Returning true means there's no event-loop running at the moment.
*/
bool isQuiting() const noexcept
{
return !fIsRunning;
}
private:
bool fIsRunning;
std::list<Fl_Double_Window*> fWindows;
friend class NtkWindow;
/** @internal used by NtkWindow. */
void addWindow(Fl_Double_Window* const window)
{
DISTRHO_SAFE_ASSERT_RETURN(window != nullptr,);
if (fWindows.size() == 0)
fIsRunning = true;
fWindows.push_back(window);
}
/** @internal used by NtkWindow. */
void removeWindow(Fl_Double_Window* const window)
{
DISTRHO_SAFE_ASSERT_RETURN(window != nullptr,);
fWindows.remove(window);
if (fWindows.size() == 0)
fIsRunning = false;
}
DISTRHO_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(NtkApp)
};
// -----------------------------------------------------------------------
END_NAMESPACE_DGL
#endif // DGL_NTK_APP_HPP_INCLUDED
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