1 /*
2  * DISTRHO Plugin Framework (DPF)
3  * Copyright (C) 2012-2016 Filipe Coelho <falktx@falktx.com>
4  *
5  * Permission to use, copy, modify, and/or distribute this software for any purpose with
6  * or without fee is hereby granted, provided that the above copyright notice and this
7  * permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
10  * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
11  * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
12  * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
13  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #ifndef DGL_APP_PRIVATE_DATA_HPP_INCLUDED
18 #define DGL_APP_PRIVATE_DATA_HPP_INCLUDED
19 
20 #include "../Application.hpp"
21 #include "../../distrho/extra/Sleep.hpp"
22 
23 #include <list>
24 
25 START_NAMESPACE_DGL
26 
27 // -----------------------------------------------------------------------
28 
29 struct Application::PrivateData {
30     bool doLoop;
31     uint visibleWindows;
32     std::list<Window*> windows;
33     std::list<IdleCallback*> idleCallbacks;
34 
PrivateDataApplication::PrivateData35     PrivateData()
36         : doLoop(true),
37           visibleWindows(0),
38           windows(),
39           idleCallbacks() {}
40 
~PrivateDataApplication::PrivateData41     ~PrivateData()
42     {
43         DISTRHO_SAFE_ASSERT(! doLoop);
44         DISTRHO_SAFE_ASSERT(visibleWindows == 0);
45 
46         windows.clear();
47         idleCallbacks.clear();
48     }
49 
oneShownApplication::PrivateData50     void oneShown() noexcept
51     {
52         if (++visibleWindows == 1)
53             doLoop = true;
54     }
55 
oneHiddenApplication::PrivateData56     void oneHidden() noexcept
57     {
58         DISTRHO_SAFE_ASSERT_RETURN(visibleWindows > 0,);
59 
60         if (--visibleWindows == 0)
61             doLoop = false;
62     }
63 
64     DISTRHO_DECLARE_NON_COPY_STRUCT(PrivateData)
65 };
66 
67 // -----------------------------------------------------------------------
68 
69 END_NAMESPACE_DGL
70 
71 #endif // DGL_APP_PRIVATE_DATA_HPP_INCLUDED
72