1 files changed, 67 insertions, 0 deletions
diff --git a/libs/dgl/src/AppPrivateData.hpp b/libs/dgl/src/AppPrivateData.hpp
new file mode 100644
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+++ b/libs/dgl/src/AppPrivateData.hpp
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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_APP_PRIVATE_DATA_HPP_INCLUDED
+#define DGL_APP_PRIVATE_DATA_HPP_INCLUDED
+
+#include "../App.hpp"
+#include "../../distrho/extra/d_sleep.hpp"
+
+#include <list>
+
+START_NAMESPACE_DGL
+
+// -----------------------------------------------------------------------
+
+struct App::PrivateData {
+    bool doLoop;
+    uint visibleWindows;
+    std::list<Window*> windows;
+    std::list<IdleCallback*> idleCallbacks;
+
+    PrivateData()
+        : doLoop(false),
+          visibleWindows(0) {}
+
+    ~PrivateData()
+    {
+        DISTRHO_SAFE_ASSERT(! doLoop);
+        DISTRHO_SAFE_ASSERT(visibleWindows == 0);
+
+        windows.clear();
+        idleCallbacks.clear();
+    }
+
+    void oneShown() noexcept
+    {
+        if (++visibleWindows == 1)
+            doLoop = true;
+    }
+
+    void oneHidden() noexcept
+    {
+        DISTRHO_SAFE_ASSERT_RETURN(visibleWindows > 0,);
+
+        if (--visibleWindows == 0)
+            doLoop = false;
+    }
+};
+
+// -----------------------------------------------------------------------
+
+END_NAMESPACE_DGL
+
+#endif // DGL_APP_PRIVATE_DATA_HPP_INCLUDED