--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DPF-Prymula-audioplugins/dpf/distrho/extra/FileBrowserDialogImpl.hpp	Mon Oct 16 21:53:34 2023 +0200
@@ -0,0 +1,121 @@
+/*
+ * DISTRHO Plugin Framework (DPF)
+ * Copyright (C) 2012-2022 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.
+ */
+
+#if !defined(DISTRHO_FILE_BROWSER_DIALOG_HPP_INCLUDED) && !defined(DGL_FILE_BROWSER_DIALOG_HPP_INCLUDED)
+# error bad include
+#endif
+
+// --------------------------------------------------------------------------------------------------------------------
+// File Browser Dialog stuff
+
+struct FileBrowserData;
+typedef FileBrowserData* FileBrowserHandle;
+
+// --------------------------------------------------------------------------------------------------------------------
+
+/**
+  File browser options, for customizing the file browser dialog.@n
+  By default the file browser dialog will be work as "open file" in the current working directory.
+*/
+struct FileBrowserOptions {
+    /** Whether we are saving, opening files otherwise (default) */
+    bool saving;
+
+    /** Default filename when saving, required in some platforms (basename without path separators) */
+    const char* defaultName;
+
+    /** Start directory, uses current working directory if null */
+    const char* startDir;
+
+    /** File browser dialog window title, uses "FileBrowser" if null */
+    const char* title;
+
+    // TODO file filter
+
+   /**
+      File browser button state.
+      This allows to customize the behaviour of the file browse dialog buttons.
+      Note these are merely hints, not all systems support them.
+    */
+    enum ButtonState {
+      kButtonInvisible,
+      kButtonVisibleUnchecked,
+      kButtonVisibleChecked,
+    };
+
+   /**
+      File browser buttons.
+    */
+    struct Buttons {
+      /** Whether to list all files vs only those with matching file extension */
+      ButtonState listAllFiles;
+      /** Whether to show hidden files */
+      ButtonState showHidden;
+      /** Whether to show list of places (bookmarks) */
+      ButtonState showPlaces;
+
+      /** Constructor for default values */
+      Buttons()
+            : listAllFiles(kButtonVisibleChecked),
+              showHidden(kButtonVisibleUnchecked),
+              showPlaces(kButtonVisibleChecked) {}
+    } buttons;
+
+    /** Constructor for default values */
+    FileBrowserOptions()
+      : saving(false),
+        defaultName(nullptr),
+        startDir(nullptr),
+        title(nullptr),
+        buttons() {}
+};
+
+// --------------------------------------------------------------------------------------------------------------------
+
+/**
+  Create a new file browser dialog.
+
+  @p isEmbed:     Whether the window this dialog belongs to is an embed/child window (needed to close dialog on Windows)
+  @p windowId:    The native window id to attach this dialog to as transient parent (X11 Window, HWND or NSView*)
+  @p scaleFactor: Scale factor to use (only used on X11)
+  @p options:     Extra options, optional
+  By default the file browser dialog will work as "open file" in the current working directory.
+*/
+FileBrowserHandle fileBrowserCreate(bool isEmbed,
+                                    uintptr_t windowId,
+                                    double scaleFactor,
+                                    const FileBrowserOptions& options = FileBrowserOptions());
+
+/**
+  Idle the file browser dialog handle.@n
+  Returns true if dialog was closed (with or without a file selection),
+  in which case this idle function must not be called anymore for this handle.
+  You can then call fileBrowserGetPath to know the selected file (or null if cancelled).
+*/
+bool fileBrowserIdle(const FileBrowserHandle handle);
+
+/**
+  Close and free the file browser dialog, handle must not be used afterwards.
+*/
+void fileBrowserClose(const FileBrowserHandle handle);
+
+/**
+  Get the path chosen by the user or null.@n
+  Should only be called after fileBrowserIdle returns true.
+*/
+const char* fileBrowserGetPath(const FileBrowserHandle handle);
+
+// --------------------------------------------------------------------------------------------------------------------