* first working prototype of changing program changes by scroll wheel (still some automation points issues)

git-svn-id: svn://localhost/ardour2/branches/3.0@4324 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 34 insertions, 0 deletions

diff --git a/libs/ardour/ardour/midi_patch_manager.h b/libs/ardour/ardour/midi_patch_manager.h
index 1642b1a22b..f617d82998 100644
--- a/libs/ardour/ardour/midi_patch_manager.h
+++ b/libs/ardour/ardour/midi_patch_manager.h
@@ -80,6 +80,40 @@ public:
 		}
 	}
 	
+	boost::shared_ptr<Patch> previous_patch(
+			string model, 
+			string custom_device_mode, 
+			uint8_t channel, 
+			PatchPrimaryKey patch_key) {
+		
+		boost::shared_ptr<MIDI::Name::MasterDeviceNames> master_device = master_device_by_model(model);
+		
+		if (master_device != 0 && custom_device_mode != "") {
+			return master_device->
+			         channel_name_set_by_device_mode_and_channel(custom_device_mode, channel)->
+				        previous_patch(patch_key);			
+		} else {
+			return boost::shared_ptr<Patch>();
+		}
+	}
+	
+	boost::shared_ptr<Patch> next_patch(
+			string model, 
+			string custom_device_mode, 
+			uint8_t channel, 
+			PatchPrimaryKey patch_key) {
+		
+		boost::shared_ptr<MIDI::Name::MasterDeviceNames> master_device = master_device_by_model(model);
+		
+		if (master_device != 0 && custom_device_mode != "") {
+			return master_device->
+			         channel_name_set_by_device_mode_and_channel(custom_device_mode, channel)->
+				        next_patch(patch_key);			
+		} else {
+			return boost::shared_ptr<Patch>();
+		}
+	}
+	
 	std::list<string> custom_device_mode_names_by_model(std::string model_name) {
 		if (model_name != "") {
 			return master_device_by_model(model_name)->custom_device_mode_names();