1 files changed, 31 insertions, 0 deletions
diff --git a/libs/widgets/widgets/ui_config.h b/libs/widgets/widgets/ui_config.h
new file mode 100644
index 0000000000..4087dae192
--- /dev/null
+++ b/libs/widgets/widgets/ui_config.h
@@ -0,0 +1,31 @@
+#ifndef _WIDGETS_UI_BASE_H_
+#define _WIDGETS_UI_BASE_H_
+
+#include <cassert>
+
+#include "pbd/stateful.h"
+#include "canvas/colors.h"
+
+#include "widgets/visibility.h"
+
+namespace ArdourWidgets {
+
+class LIBWIDGETS_API UIConfigurationBase : public PBD::Stateful
+{
+protected:
+	virtual ~UIConfigurationBase() { _instance = 0; }
+	static UIConfigurationBase* _instance;
+
+public:
+	static UIConfigurationBase& instance() { return *_instance; }
+
+	sigc::signal<void>  DPIReset;
+	sigc::signal<void>  ColorsChanged;
+
+	virtual float get_ui_scale () = 0;
+	virtual bool get_widget_prelight () const = 0;
+	virtual ArdourCanvas::Color color (const std::string&, bool* failed = 0) const = 0;
+};
+
+}
+#endif