From 645402bc42879364a16c0d6c230e9125bd0aeb1f Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Wed, 18 Jan 2017 15:16:05 +0100
Subject: Add GUI action to record with preroll

---
 gtk2_ardour/ardour.menus.in |  1 +
 gtk2_ardour/ardour_ui.cc    |  9 +++++++++
 gtk2_ardour/ardour_ui.h     |  1 +
 gtk2_ardour/ardour_ui_ed.cc |  4 ++++
 gtk2_ardour/editor.h        |  1 +
 gtk2_ardour/editor_ops.cc   | 14 ++++++++++++++
 gtk2_ardour/public_editor.h |  1 +
 7 files changed, 31 insertions(+)

diff --git a/gtk2_ardour/ardour.menus.in b/gtk2_ardour/ardour.menus.in
index 7d18d17d11..b579e7d2a1 100644
--- a/gtk2_ardour/ardour.menus.in
+++ b/gtk2_ardour/ardour.menus.in
@@ -74,6 +74,7 @@
       <menuitem action='record-roll'/>
       <menuitem action='ToggleRollForgetCapture'/>
       <menuitem action='Record'/>
+      <menuitem action='RecordPreroll'/>
 #if 0
       <menuitem action='toggle-skip-playback'/>
 #endif
diff --git a/gtk2_ardour/ardour_ui.cc b/gtk2_ardour/ardour_ui.cc
index 46510112b7..d9ea44c325 100644
--- a/gtk2_ardour/ardour_ui.cc
+++ b/gtk2_ardour/ardour_ui.cc
@@ -2449,6 +2449,15 @@ ARDOUR_UI::transport_play_preroll ()
 	editor->play_with_preroll ();
 }
 
+void
+ARDOUR_UI::transport_rec_preroll ()
+{
+	if (!_session) {
+		return;
+	}
+	editor->rec_with_preroll ();
+}
+
 void
 ARDOUR_UI::transport_rewind (int option)
 {
diff --git a/gtk2_ardour/ardour_ui.h b/gtk2_ardour/ardour_ui.h
index 5686d8c978..f69a4a3dd6 100644
--- a/gtk2_ardour/ardour_ui.h
+++ b/gtk2_ardour/ardour_ui.h
@@ -677,6 +677,7 @@ private:
 	void transport_roll ();
 	void transport_play_selection();
 	void transport_play_preroll();
+	void transport_rec_preroll();
 	void transport_forward (int option);
 	void transport_rewind (int option);
 	void transport_loop ();
diff --git a/gtk2_ardour/ardour_ui_ed.cc b/gtk2_ardour/ardour_ui_ed.cc
index 2c21de6074..1cdbcb51c7 100644
--- a/gtk2_ardour/ardour_ui_ed.cc
+++ b/gtk2_ardour/ardour_ui_ed.cc
@@ -408,6 +408,10 @@ ARDOUR_UI::install_actions ()
 	ActionManager::session_sensitive_actions.push_back (act);
 	ActionManager::transport_sensitive_actions.push_back (act);
 
+	act = global_actions.register_action (transport_actions, X_("RecordPreroll"), _("Record w/Preroll"), sigc::mem_fun(*this, &ARDOUR_UI::transport_rec_preroll));
+	ActionManager::session_sensitive_actions.push_back (act);
+	ActionManager::write_sensitive_actions.push_back (act);
+
 	act = global_actions.register_action (transport_actions, X_("Record"), _("Enable Record"), sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::transport_record), false));
 	ActionManager::session_sensitive_actions.push_back (act);
 	ActionManager::write_sensitive_actions.push_back (act);
diff --git a/gtk2_ardour/editor.h b/gtk2_ardour/editor.h
index dfe25420f6..d34a40cda8 100644
--- a/gtk2_ardour/editor.h
+++ b/gtk2_ardour/editor.h
@@ -264,6 +264,7 @@ class Editor : public PublicEditor, public PBD::ScopedConnectionList, public ARD
 	framepos_t get_preroll ();
 	void maybe_locate_with_edit_preroll (framepos_t);
 	void play_with_preroll ();
+	void rec_with_preroll ();
 	void select_all_in_track (Selection::Operation op);
 	void select_all_objects (Selection::Operation op);
 	void invert_selection_in_track ();
diff --git a/gtk2_ardour/editor_ops.cc b/gtk2_ardour/editor_ops.cc
index 633a6989d8..95be0ed972 100644
--- a/gtk2_ardour/editor_ops.cc
+++ b/gtk2_ardour/editor_ops.cc
@@ -2665,6 +2665,20 @@ Editor::play_with_preroll ()
 	}
 }
 
+void
+Editor::rec_with_preroll ()
+{
+	framepos_t preroll = get_preroll();
+	framepos_t ph = playhead_cursor->current_frame ();
+	framepos_t start = std::max ((framepos_t)0, ph - preroll);
+
+	_session->request_preroll_record (ph);
+	_session->maybe_enable_record ();
+	_session->request_locate (start, true);
+	_session->set_requested_return_frame (ph);
+}
+
+
 void
 Editor::play_location (Location& location)
 {
diff --git a/gtk2_ardour/public_editor.h b/gtk2_ardour/public_editor.h
index 4220ddbb72..cdae2480ec 100644
--- a/gtk2_ardour/public_editor.h
+++ b/gtk2_ardour/public_editor.h
@@ -211,6 +211,7 @@ class PublicEditor : public Gtkmm2ext::Tabbable {
 	virtual bool extend_selection_to_track (TimeAxisView&) = 0;
 	virtual void play_selection () = 0;
 	virtual void play_with_preroll () = 0;
+	virtual void rec_with_preroll () = 0;
 	virtual void maybe_locate_with_edit_preroll (framepos_t location) = 0;
 	virtual void goto_nth_marker (int nth) = 0;
 	virtual void trigger_script (int nth) = 0;
-- 
cgit v1.2.3