diff plugin/PluginPathSetter.h @ 1472:5d7057af0c68 plugin-path-config

Add class to get/set/remember the plugin path for each plugin type

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plugin/PluginPathSetter.h	Fri May 25 16:04:42 2018 +0100
@@ -0,0 +1,58 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Sonic Visualiser
+    An audio file viewer and annotation editor.
+    Centre for Digital Music, Queen Mary, University of London.
+    
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#ifndef SV_PLUGIN_PATH_SETTER_H
+#define SV_PLUGIN_PATH_SETTER_H
+
+#include <QString>
+#include <QStringList>
+#include <QMutex>
+
+#include <map>
+
+class PluginPathSetter
+{
+public:
+    /// Text used to identify a plugin type, e.g. "LADSPA", "Vamp"
+    typedef QString PluginTypeLabel;
+
+    struct PathConfig {
+        QStringList directories;
+        QString envVariable; // e.g. "LADSPA_PATH" etc
+        bool useEnvVariable; // true if env variable overrides directories list
+    };
+
+    typedef std::map<PluginTypeLabel, PathConfig> Paths;
+
+    /// Return paths arising from environment variables only, without
+    /// any user-defined preferences
+    static Paths getDefaultPaths();
+
+    /// Return paths arising from user settings + environment
+    /// variables as appropriate
+    static Paths getPaths();
+
+    /// Save the given paths to the settings
+    static void savePathSettings(Paths paths);
+
+    /// Update *_PATH environment variables from the settings, on
+    /// application startup
+    static void setEnvironmentVariables();
+
+private:
+    static Paths m_defaultPaths;
+    static QMutex m_mutex;
+};
+
+#endif