Implement menu selector for enumeration ports (sort of address #780).

git-svn-id: http://svn.drobilla.net/lad/trunk/ingen@4308 a436a847-0d15-0410-975c-d299462d15a1

7 files changed, 65 insertions, 0 deletions

diff --git a/ingen/client/PluginModel.hpp b/ingen/client/PluginModel.hpp
index e434df07..46e7b116 100644
--- a/ingen/client/PluginModel.hpp
+++ b/ingen/client/PluginModel.hpp
@@ -17,6 +17,9 @@
 #ifndef INGEN_CLIENT_PLUGINMODEL_HPP
 #define INGEN_CLIENT_PLUGINMODEL_HPP
 
+#include <list>
+#include <utility>
+
 #include "lilv/lilv.h"
 #include "raul/SharedPtr.hpp"
 #include "raul/Symbol.hpp"
@@ -59,6 +62,10 @@ public:
 	std::string  human_name() const;
 	std::string  port_human_name(uint32_t index) const;
 
+	typedef std::pair<float, std::string> ScalePoint;
+	typedef std::list<ScalePoint>         ScalePoints;
+	ScalePoints port_scale_points(uint32_t i) const;
+
 	static LilvWorld* lilv_world()        { return _lilv_world; }
 	const LilvPlugin* lilv_plugin() const { return _lilv_plugin; }
 
diff --git a/ingen/client/PortModel.hpp b/ingen/client/PortModel.hpp
index d9fce5e4..8065692d 100644
--- a/ingen/client/PortModel.hpp
+++ b/ingen/client/PortModel.hpp
@@ -54,6 +54,7 @@ public:
 	bool port_property(const Raul::URI& uri) const;
 
 	bool is_logarithmic() const { return port_property(LV2_PORT_PROPS__logarithmic); }
+	bool is_enumeration() const { return port_property(LV2_CORE__enumeration); }
 	bool is_integer()     const { return port_property(LV2_CORE__integer); }
 	bool is_toggle()      const { return port_property(LV2_CORE__toggled); }
 	bool is_numeric()     const {
diff --git a/ingen/shared/URIs.hpp b/ingen/shared/URIs.hpp
index c4086bb5..f59f5c38 100644
--- a/ingen/shared/URIs.hpp
+++ b/ingen/shared/URIs.hpp
@@ -98,6 +98,7 @@ public:
 	const Quark lv2_name;
 	const Quark lv2_portProperty;
 	const Quark lv2_sampleRate;
+	const Quark lv2_scalePoint;
 	const Quark lv2_symbol;
 	const Quark lv2_toggled;
 	const Quark midi_Bender;
diff --git a/src/client/PluginModel.cpp b/src/client/PluginModel.cpp
index 9c5bd2bb..7d5aa993 100644
--- a/src/client/PluginModel.cpp
+++ b/src/client/PluginModel.cpp
@@ -185,6 +185,25 @@ PluginModel::port_human_name(uint32_t i) const
 	return "";
 }
 
+PluginModel::ScalePoints
+PluginModel::port_scale_points(uint32_t i) const
+{
+	// TODO: Non-float scale points
+	ScalePoints points;
+	if (_lilv_plugin) {
+		const LilvPort*  port = lilv_plugin_get_port_by_index(_lilv_plugin, i);
+		LilvScalePoints* sp   = lilv_port_get_scale_points(_lilv_plugin, port);
+		LILV_FOREACH(scale_points, i, sp) {
+			const LilvScalePoint* p = lilv_scale_points_get(sp, i);
+			points.push_back(
+				std::make_pair(
+					lilv_node_as_float(lilv_scale_point_get_value(p)),
+					lilv_node_as_string(lilv_scale_point_get_label(p))));
+		}
+	}
+	return points;
+}
+
 bool
 PluginModel::has_ui() const
 {
diff --git a/src/gui/Port.cpp b/src/gui/Port.cpp
index 0a7536a2..e99b0285 100644
--- a/src/gui/Port.cpp
+++ b/src/gui/Port.cpp
@@ -163,6 +163,34 @@ Port::value_changed(const Atom& value)
 	}
 }
 
+void
+Port::on_scale_point_activated(float f)
+{
+	_app.engine()->set_property(model()->path(),
+	                            _app.world()->uris()->ingen_value,
+	                            _app.world()->forge().make(f));
+}
+
+Gtk::Menu*
+Port::build_enum_menu()
+{
+	SharedPtr<const NodeModel> node = PtrCast<NodeModel>(model()->parent());
+	Gtk::Menu*                 menu = Gtk::manage(new Gtk::Menu());
+
+	PluginModel::ScalePoints points = node->plugin_model()->port_scale_points(
+		model()->index());
+	for (PluginModel::ScalePoints::iterator i = points.begin();
+	     i != points.end(); ++i) {
+		menu->items().push_back(Gtk::Menu_Helpers::MenuElem(i->second));
+		Gtk::MenuItem* menu_item = &(menu->items().back());
+		menu_item->signal_activate().connect(
+			sigc::bind(sigc::mem_fun(this, &Port::on_scale_point_activated),
+			           i->first));
+	}
+
+	return menu;
+}
+
 bool
 Port::on_event(GdkEvent* ev)
 {
@@ -182,6 +210,11 @@ Port::on_event(GdkEvent* ev)
 		break;
 	case GDK_BUTTON_PRESS:
 		if (ev->button.button == 1) {
+			if (model()->is_enumeration()) {
+				Gtk::Menu* menu = build_enum_menu();
+				menu->popup(ev->button.button, ev->button.time);
+				return true;
+			}
 			_pressed = true;
 		} else if (ev->button.button == 3) {
 			return show_menu(&ev->button);
diff --git a/src/gui/Port.hpp b/src/gui/Port.hpp
index f0872e39..0e5ad508 100644
--- a/src/gui/Port.hpp
+++ b/src/gui/Port.hpp
@@ -19,6 +19,7 @@
 
 #include <cassert>
 #include <string>
+#include <gtkmm/menu.h>
 #include "ganv/Port.hpp"
 #include "raul/SharedPtr.hpp"
 #include "raul/WeakPtr.hpp"
@@ -70,12 +71,14 @@ private:
 	     const std::string&                 name,
 	     bool                               flip = false);
 
+	Gtk::Menu* build_enum_menu();
 	PatchBox* get_patch_box() const;
 
 	void property_changed(const Raul::URI& key, const Raul::Atom& value);
 	void moved();
 
 	void on_value_changed(GVariant* value);
+	void on_scale_point_activated(float f);
 	bool on_event(GdkEvent* ev);
 
 	App&                             _app;
diff --git a/src/shared/URIs.cpp b/src/shared/URIs.cpp
index b1ecda5f..db5c5bfd 100644
--- a/src/shared/URIs.cpp
+++ b/src/shared/URIs.cpp
@@ -102,6 +102,7 @@ URIs::URIs(Ingen::Forge& f, LV2URIMap* map)
 	, lv2_name              (forge, map, LV2_CORE__name)
 	, lv2_portProperty      (forge, map, LV2_CORE__portProperty)
 	, lv2_sampleRate        (forge, map, LV2_CORE__sampleRate)
+	, lv2_scalePoint        (forge, map, LV2_CORE__scalePoint)
 	, lv2_symbol            (forge, map, LV2_CORE__symbol)
 	, lv2_toggled           (forge, map, LV2_CORE__toggled)
 	, midi_Bender           (forge, map, LV2_MIDI__Bender)