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

3 files changed, 60 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;
diff --git a/libs/ardour/lv2_plugin.cc b/libs/ardour/lv2_plugin.cc
index 228fd74117..d27c045750 100644
--- a/libs/ardour/lv2_plugin.cc
+++ b/libs/ardour/lv2_plugin.cc
@@ -1054,6 +1054,53 @@ LV2Plugin::get_parameter_docs(uint32_t which) const
 	return "";
 }
 
+bool
+LV2Plugin::get_layout (uint32_t which, UILayoutHint& h) const
+{
+	/// TODO lookup port-properties
+	if (unique_id () != "urn:ardour:a-eq") {
+		return false;
+	}
+	h.knob = true;
+	switch (which) {
+		case  0: h.x0 = 0; h.x1 = 1; h.y0 = 4; h.y1 = 5; break; // Shelf toggle L
+		case  1: h.x0 = 0; h.x1 = 1; h.y0 = 2; h.y1 = 3; break; // Frequency L
+		case  2: h.x0 = 0; h.x1 = 1; h.y0 = 0; h.y1 = 1; break; // Gain L
+		case 19: h.x0 = 0; h.x1 = 1; h.y0 = 5; h.y1 = 6; break; // enable L
+
+		case  3: h.x0 = 1; h.x1 = 3; h.y0 = 2; h.y1 = 3; break; // Frequency 1
+		case  4: h.x0 = 1; h.x1 = 3; h.y0 = 0; h.y1 = 1; break; // Gain 1
+		case  5: h.x0 = 2; h.x1 = 4; h.y0 = 1; h.y1 = 2; break; // Bandwidth 1
+		case 20: h.x0 = 1; h.x1 = 4; h.y0 = 5; h.y1 = 6; break; // enable 1
+
+		case  6: h.x0 = 4; h.x1 = 6; h.y0 = 2; h.y1 = 3; break; // Frequency 2
+		case  7: h.x0 = 4; h.x1 = 6; h.y0 = 0; h.y1 = 1; break; // Gain 2
+		case  8: h.x0 = 5; h.x1 = 7; h.y0 = 1; h.y1 = 2; break; // Bandwidth 2
+		case 21: h.x0 = 4; h.x1 = 7; h.y0 = 5; h.y1 = 6; break; // enable 2
+
+		case  9: h.x0 = 7; h.x1 =  9; h.y0 = 2; h.y1 = 3; break; // Frequency 3
+		case 10: h.x0 = 7; h.x1 =  9; h.y0 = 0; h.y1 = 1; break; // Gain 3
+		case 11: h.x0 = 8; h.x1 = 10; h.y0 = 1; h.y1 = 2; break; // Bandwidth 3
+		case 22: h.x0 = 7; h.x1 = 10; h.y0 = 5; h.y1 = 6; break; // enable 3
+
+		case 12: h.x0 = 10; h.x1 = 12; h.y0 = 2; h.y1 = 3; break; // Frequency 4
+		case 13: h.x0 = 10; h.x1 = 12; h.y0 = 0; h.y1 = 1; break; // Gain 4
+		case 14: h.x0 = 11; h.x1 = 13; h.y0 = 1; h.y1 = 2; break; // Bandwidth 4
+		case 23: h.x0 = 10; h.x1 = 13; h.y0 = 5; h.y1 = 6; break; // enable 4
+
+		case 15: h.x0 = 13; h.x1 = 14; h.y0 = 4; h.y1 = 5; break; // Shelf toggle H
+		case 16: h.x0 = 13; h.x1 = 14; h.y0 = 2; h.y1 = 3; break; // Frequency H
+		case 17: h.x0 = 13; h.x1 = 14; h.y0 = 0; h.y1 = 1; break; // Gain H
+		case 24: h.x0 = 13; h.x1 = 14; h.y0 = 5; h.y1 = 6; break; // enable H
+
+
+		case 18: h.x0 = 14; h.x1 = 15; h.y0 = 4; h.y1 = 6; break; // Master Gain
+		default:
+			return false;
+	}
+	return true;
+}
+
 uint32_t
 LV2Plugin::nth_parameter(uint32_t n, bool& ok) const
 {