From 4a146f9e57bf63c3555ebc048acc2012229fe08a Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sun, 8 Feb 2015 11:35:50 -0800
Subject: [PATCH] Add 'system_default_directory()' helper function

This is just a extern "C" wrapper around QStandardPaths::AppDataLocation,
while also making sure the entry exists.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
---
 pref.h       |  2 ++
 qthelper.cpp | 15 +++++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/pref.h b/pref.h
index 8804ce260..c33b55438 100644
--- a/pref.h
+++ b/pref.h
@@ -94,6 +94,8 @@ extern struct preferences prefs, default_prefs;
 
 extern const char *system_divelist_default_font;
 extern double system_divelist_default_font_size;
+
+extern const char *system_default_directory(void);
 extern const char *system_default_filename();
 extern bool subsurface_ignore_font(const char *font);
 extern void subsurface_OS_pref_setup();
diff --git a/qthelper.cpp b/qthelper.cpp
index a4b644304..c591f90dd 100644
--- a/qthelper.cpp
+++ b/qthelper.cpp
@@ -12,6 +12,7 @@
 #include <QDir>
 #include <QDebug>
 #include <QSettings>
+#include <QStandardPaths>
 #include <QJsonDocument>
 #include <QJsonArray>
 #include <QJsonObject>
@@ -298,6 +299,20 @@ picture_load_exit:
 	return;
 }
 
+extern "C" const char *system_default_directory(void)
+{
+	static char filename[PATH_MAX];
+
+	if (!*filename) {
+		QString name = QStandardPaths::standardLocations(QStandardPaths::AppDataLocation).first();
+		QDir dir(name);
+		dir.mkpath(name);
+		// Why no "dir.encodeName()"? Crazy Qt
+		strncpy(filename, QFile::encodeName(name), PATH_MAX-1);
+	}
+	return filename;
+}
+
 extern "C" char *get_file_name(const char *fileName)
 {
 	QFileInfo fileInfo(fileName);