Add legatize and remove overlap MIDI operations.

We're going to need the ability to apply MIDI edit operations to a note/control
selection soon...

gtk2_ardour/ardour.menus.in

@@ -252,6 +252,8 @@
         <menuitem action='transpose-region'/>
         <menuitem action='insert-patch-change'/>
         <menuitem action='quantize-region'/>
+        <menuitem action='legatize-region'/>
+        <menuitem action='remove-overlap'/>
         <menuitem action='fork-region'/>
         <menuitem action='show-region-list-editor'/>
       </menu>
@@ -632,6 +634,8 @@
       <menuitem action='transpose-region'/>
       <menuitem action='insert-patch-change-context'/>
       <menuitem action='quantize-region'/>
+      <menuitem action='legatize-region'/>
+      <menuitem action='remove-overlap'/>
       <menuitem action='fork-region'/>
       <menuitem action='show-region-list-editor'/>
     </menu>

gtk2_ardour/editor.bindings

@@ -33,6 +33,8 @@
   <Binding action="Region/cut-region-gain" key="ampersand"/>
   <Binding action="Common/Quit" key="Primary-q"/>
   <Binding action="Region/quantize-region" key="q"/>
+  <Binding action="Region/legatize-region" key="Primary-apostrophe"/>
+  <Binding action="Region/remove-overlap" key="Secondary-apostrophe"/>
   <Binding action="MouseMode/toggle-internal-edit" key="e"/>
   <Binding action="Editor/select-all-before-edit-cursor" key="Primary-e"/>
   <Binding action="Region/export-region" key="Primary-Level4-e"/>

gtk2_ardour/editor.h

@@ -1190,6 +1190,7 @@ class Editor : public PublicEditor, public PBD::ScopedConnectionList, public ARD
 	void reset_region_scale_amplitude ();
 	void adjust_region_gain (bool up);
 	void quantize_region ();
+	void legatize_region (bool shrink_only);
 	void insert_patch_change (bool from_context);
 	void fork_region ();
 

gtk2_ardour/editor_actions.cc

@@ -1953,6 +1953,8 @@ Editor::register_region_actions ()
 		);
 
 	reg_sens (_region_actions, "quantize-region", _("Quantize..."), sigc::mem_fun (*this, &Editor::quantize_region));
+	reg_sens (_region_actions, "legatize-region", _("Legatize"), sigc::bind(sigc::mem_fun (*this, &Editor::legatize_region), false));
+	reg_sens (_region_actions, "remove-overlap", _("Remove Overlap"), sigc::bind(sigc::mem_fun (*this, &Editor::legatize_region), true));
 	reg_sens (_region_actions, "insert-patch-change", _("Insert Patch Change..."), sigc::bind (sigc::mem_fun (*this, &Editor::insert_patch_change), false));
 	reg_sens (_region_actions, "insert-patch-change-context", _("Insert Patch Change..."), sigc::bind (sigc::mem_fun (*this, &Editor::insert_patch_change), true));
 	reg_sens (_region_actions, "fork-region", _("Unlink from other copies"), sigc::mem_fun (*this, &Editor::fork_region));

gtk2_ardour/editor_ops.cc

@@ -50,6 +50,7 @@
 #include "ardour/playlist_factory.h"
 #include "ardour/profile.h"
 #include "ardour/quantize.h"
+#include "ardour/legatize.h"
 #include "ardour/region_factory.h"
 #include "ardour/reverse.h"
 #include "ardour/session.h"
@@ -4987,6 +4988,36 @@ Editor::quantize_region ()
 	}
 }
 
+void
+Editor::legatize_region (bool shrink_only)
+{
+	int selected_midi_region_cnt = 0;
+
+	if (!_session) {
+		return;
+	}
+
+	RegionSelection rs = get_regions_from_selection_and_entered ();
+
+	if (rs.empty()) {
+		return;
+	}
+
+	for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
+		MidiRegionView* const mrv = dynamic_cast<MidiRegionView*> (*r);
+		if (mrv) {
+			selected_midi_region_cnt++;
+		}
+	}
+
+	if (selected_midi_region_cnt == 0) {
+		return;
+	}
+
+	Legatize legatize(shrink_only);
+	apply_midi_note_edit_op (legatize);
+}
+
 void
 Editor::insert_patch_change (bool from_context)
 {

gtk2_ardour/editor_selection.cc

@@ -1181,6 +1181,8 @@ Editor::sensitize_the_right_region_actions ()
 		editor_menu_actions->get_action("RegionMenuMIDI")->set_sensitive (false);
 		_region_actions->get_action("show-region-list-editor")->set_sensitive (false);
 		_region_actions->get_action("quantize-region")->set_sensitive (false);
+		_region_actions->get_action("legatize-region")->set_sensitive (false);
+		_region_actions->get_action("remove-overlap")->set_sensitive (false);
 		_region_actions->get_action("fork-region")->set_sensitive (false);
 		_region_actions->get_action("insert-patch-change-context")->set_sensitive (false);
 		_region_actions->get_action("insert-patch-change")->set_sensitive (false);

gtk2_ardour/trx.menus.in

@@ -253,6 +253,8 @@
       <menuitem action='transpose-region'/>
       <menuitem action='insert-patch-change-context'/>
       <menuitem action='quantize-region'/>
+      <menuitem action='legatize-region'/>
+      <menuitem action='remove-overlap'/>
       <menuitem action='fork-region'/>
       <menuitem action='show-region-list-editor'/>
     </menu>

libs/ardour/ardour/legatize.h

@@ -0,0 +1,56 @@
+/*
+    Copyright (C) 2014 Paul Davis
+    Author: David Robillard
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifndef __ardour_legatize_h__
+#define __ardour_legatize_h__
+
+#include <string>
+
+#include "ardour/libardour_visibility.h"
+#include "ardour/types.h"
+#include "ardour/midi_operator.h"
+
+namespace ARDOUR {
+
+/** "Legatize" nodes (extend note ends to force legato).
+ *
+ * This can also do "remove overlap" by setting shrink_only to true, in which
+ * case note lengths will only be changed if they are long enough to overlap
+ * the following note.
+ */
+class LIBARDOUR_API Legatize : public MidiOperator {
+public:
+	Legatize(bool shrink_only);
+	~Legatize();
+
+	typedef Evoral::Sequence<Evoral::MusicalTime>::Notes Notes;
+
+	Command* operator()(boost::shared_ptr<ARDOUR::MidiModel> model,
+	                    Evoral::MusicalTime                  position,
+	                    std::vector<Notes>&                  seqs);
+
+	std::string name() const { return std::string ("legatize"); }
+
+private:
+	bool _shrink_only;
+};
+
+} /* namespace */
+
+#endif /* __ardour_legatize_h__ */

libs/ardour/legatize.cc

@@ -0,0 +1,60 @@
+/*
+    Copyright (C) 20014 Paul Davis
+    Author: David Robillard
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "ardour/legatize.h"
+#include "ardour/midi_model.h"
+
+namespace ARDOUR {
+
+Legatize::Legatize(bool shrink_only)
+	: _shrink_only(shrink_only)
+{}
+
+Legatize::~Legatize ()
+{}
+
+Command*
+Legatize::operator()(boost::shared_ptr<ARDOUR::MidiModel> model,
+                     Evoral::MusicalTime                  position,
+                     std::vector<Legatize::Notes>&        seqs)
+{
+	MidiModel::NoteDiffCommand* cmd = new MidiModel::NoteDiffCommand(model, "legatize");
+
+	for (std::vector<Legatize::Notes>::iterator s = seqs.begin(); s != seqs.end(); ++s) {
+		for (Legatize::Notes::iterator i = (*s).begin(); i != (*s).end();) {
+			Legatize::Notes::iterator next = i;
+			if (++next == (*s).end()) {
+				break;
+			}
+
+			const Evoral::MusicalTime new_end = (*next)->time() - Evoral::MusicalTime::tick();
+			if ((*i)->end_time() > new_end ||
+			    (!_shrink_only && (*i)->end_time() < new_end)) {
+				const Evoral::MusicalTime new_length(new_end - (*i)->time());
+				cmd->change((*i), MidiModel::NoteDiffCommand::Length, new_length);
+			}
+
+			i = next;
+		}
+	}
+
+	return cmd;
+}
+
+}  // namespace ARDOUR

libs/ardour/wscript

@@ -105,6 +105,7 @@ libardour_sources = [
         'io_processor.cc',
         'kmeterdsp.cc',
         'ladspa_plugin.cc',
+        'legatize.cc',
         'location.cc',
         'location_importer.cc',
         'ltc_slave.cc',