From f174c3a1a1a8a4fb611c7d3dee1fb1bd389b9d70 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Sat, 10 Sep 2022 00:55:28 +0200
Subject: [PATCH] Implement file import sorting

---
 gtk2_ardour/sfdb_ui.cc | 19 +++++++++++++++++++
 gtk2_ardour/sfdb_ui.h  | 10 ++++++++++
 2 files changed, 29 insertions(+)

diff --git a/gtk2_ardour/sfdb_ui.cc b/gtk2_ardour/sfdb_ui.cc
index 477cfe45ef..5649e52ed9 100644
--- a/gtk2_ardour/sfdb_ui.cc
+++ b/gtk2_ardour/sfdb_ui.cc
@@ -1440,10 +1440,29 @@ SoundFileBrowser::get_paths ()
 		vector<string> filenames = chooser.get_filenames();
 		vector<string>::iterator i;
 
+		std::map<std::string, int64_t> im;
+
 		for (i = filenames.begin(); i != filenames.end(); ++i) {
 			GStatBuf buf;
 			if ((!g_stat((*i).c_str(), &buf)) && S_ISREG(buf.st_mode)) {
 				results.push_back (*i);
+				im[*i] = buf.st_mtime;
+			}
+		}
+		if (sort_order () == FileMtime) {
+			results.clear ();
+			std::multimap<int64_t, std::string> im2;
+			std::transform (im.begin (), im.end (),
+					std::inserter (im2, im2.begin ()),
+					[](std::pair<std::string, int64_t>i) {return std::pair<int64_t, std::string>(i.second, i.first);});
+
+			for (auto const& i : im2) {
+				results.push_back (i.second);
+			}
+		} else if (sort_order () == FileName) {
+			results.clear ();
+			for (auto const& i : im) {
+				results.push_back (i.first);
 			}
 		}
 
diff --git a/gtk2_ardour/sfdb_ui.h b/gtk2_ardour/sfdb_ui.h
index 7f75e584b0..1a155acf47 100644
--- a/gtk2_ardour/sfdb_ui.h
+++ b/gtk2_ardour/sfdb_ui.h
@@ -272,6 +272,16 @@ protected:
 	void on_show();
 	bool on_key_press_event (GdkEventKey*);
 	virtual void do_something(int action);
+
+	enum SortOrder {
+		SelectionOrder,
+		FileName,
+		FileMtime
+	};
+
+	virtual SortOrder sort_order () const {
+		return SelectionOrder;
+	}
 };
 
 class SoundFileChooser : public SoundFileBrowser