add an plugin API to query generic-gui grid-layout

2 files changed, 13 insertions, 0 deletions

diff --git a/libs/ardour/ardour/lv2_plugin.h b/libs/ardour/ardour/lv2_plugin.h
index cbd7a7abc2..efd4903e07 100644
--- a/libs/ardour/ardour/lv2_plugin.h
+++ b/libs/ardour/ardour/lv2_plugin.h
@@ -79,6 +79,7 @@ class LIBARDOUR_API LV2Plugin : public ARDOUR::Plugin, public ARDOUR::Workee
 	std::string get_parameter_docs(uint32_t which) const;
 	int         get_parameter_descriptor (uint32_t which, ParameterDescriptor&) const;
 	uint32_t    nth_parameter (uint32_t port, bool& ok) const;
+	bool        get_layout (uint32_t which, UILayoutHint&) const;
 
 	IOPortDescription describe_io_port (DataType dt, bool input, uint32_t id) const;
 
diff --git a/libs/ardour/ardour/plugin.h b/libs/ardour/ardour/plugin.h
index dcb6577e7a..bc32d7c3e6 100644
--- a/libs/ardour/ardour/plugin.h
+++ b/libs/ardour/ardour/plugin.h
@@ -88,6 +88,18 @@ class LIBARDOUR_API Plugin : public PBD::StatefulDestructible, public Latent
 	virtual std::string get_docs () const { return ""; }
 	virtual std::string get_parameter_docs (uint32_t /*which*/) const { return ""; }
 
+	struct UILayoutHint {
+		UILayoutHint ()
+			: x0(-1), x1(-1), y0(-1), y1(-1), knob(false) {}
+		int x0;
+		int x1;
+		int y0;
+		int y1;
+		bool knob;
+	};
+
+	virtual bool get_layout (uint32_t which, UILayoutHint&) const { return false; }
+
 	virtual int get_parameter_descriptor (uint32_t which, ParameterDescriptor&) const = 0;
 	virtual uint32_t nth_parameter (uint32_t which, bool& ok) const = 0;
 	virtual void activate () = 0;