From dfbe00cb1d9ce4cb52448cf4c1d577fe7b1eaad7 Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Thu, 16 Jul 2015 11:29:45 +0200
Subject: api: introduce macros for symbol exposure

---
 opentrack/plugin-qt-api.hpp | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/opentrack/plugin-qt-api.hpp b/opentrack/plugin-qt-api.hpp
index 89b71f81..2ccdad19 100644
--- a/opentrack/plugin-qt-api.hpp
+++ b/opentrack/plugin-qt-api.hpp
@@ -4,6 +4,20 @@
 #include <QFrame>
 #include <QIcon>
 
+#define OPENTRACK_DECLARE_PLUGIN_INTERNAL(ctor_class, ctor_ret_class, metadata_class, dialog_class, dialog_ret_class) \
+    extern "C" OPENTRACK_EXPORT ctor_ret_class* GetConstructor() \
+    { \
+        return new ctor_class; \
+    } \
+    extern "C" OPENTRACK_EXPORT Metadata* GetMetadata() \
+    { \
+        return new metadata_class; \
+    } \
+    extern "C" OPENTRACK_EXPORT dialog_ret_class* GetDialog() \
+    { \
+        return new dialog_class; \
+    }
+
 // implement this in all plugins
 struct Metadata
 {
@@ -91,3 +105,7 @@ struct ITrackerDialog : public QWidget
     // received tracker pointer is about to get deleted
     virtual void unregister_tracker() = 0;
 };
+
+// call once with your chosen class names in the plugin
+#define OPENTRACK_DECLARE_TRACKER(tracker_class, dialog_class, metadata_class) \
+    OPENTRACK_DECLARE_PLUGIN_INTERNAL(tracker_class, ITracker, metadata_class, dialog_class, ITrackerDialog)
-- 
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