From 291575683cb87713cc7a5856a96c5fdd69b9a52c Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Wed, 22 Jul 2015 21:14:08 -0400
Subject: dynamically update menus/actions controlling tabbable
 show/hide/attach/detach operations

---
 gtk2_ardour/ardour_ui.h          |  2 ++
 gtk2_ardour/ardour_ui2.cc        |  1 +
 gtk2_ardour/ardour_ui_dialogs.cc | 63 ++++++++++++++++++++++++++++++++++++++++
 gtk2_ardour/ardour_ui_ed.cc      |  1 +
 gtk2_ardour/ardour_ui_mixer.cc   |  1 +
 5 files changed, 68 insertions(+)

diff --git a/gtk2_ardour/ardour_ui.h b/gtk2_ardour/ardour_ui.h
index 13627e4af1..0c11233c15 100644
--- a/gtk2_ardour/ardour_ui.h
+++ b/gtk2_ardour/ardour_ui.h
@@ -379,6 +379,8 @@ class ARDOUR_UI : public Gtkmm2ext::UI, public ARDOUR::SessionHandlePtr
 	void detach_tabbable (Gtkmm2ext::Tabbable*);
 	void attach_tabbable (Gtkmm2ext::Tabbable*);
 
+	void tabbable_state_change (Gtkmm2ext::Tabbable&);
+	
 	void toggle_meterbridge ();
 
 	int  setup_windows ();
diff --git a/gtk2_ardour/ardour_ui2.cc b/gtk2_ardour/ardour_ui2.cc
index c895262cb6..db0f28a566 100644
--- a/gtk2_ardour/ardour_ui2.cc
+++ b/gtk2_ardour/ardour_ui2.cc
@@ -100,6 +100,7 @@ ARDOUR_UI::setup_windows ()
 	rc_option_editor = new RCOptionEditor;
 	rc_option_editor->add_to_notebook (_tabs, _("Preferences"));
 	rc_option_editor->contents().show_all ();
+	rc_option_editor->StateChange.connect (sigc::mem_fun (*this, &ARDOUR_UI::tabbable_state_change));
 	
 	/* all other dialogs are created conditionally */
 
diff --git a/gtk2_ardour/ardour_ui_dialogs.cc b/gtk2_ardour/ardour_ui_dialogs.cc
index 0d8c8a9c27..08174a62bc 100644
--- a/gtk2_ardour/ardour_ui_dialogs.cc
+++ b/gtk2_ardour/ardour_ui_dialogs.cc
@@ -23,6 +23,10 @@
    This is to cut down on the compile times.  It also helps with my sanity.
 */
 
+#include <vector>
+
+#include "pbd/convert.h"
+
 #include "ardour/audioengine.h"
 #include "ardour/automation_watch.h"
 #include "ardour/control_protocol_manager.h"
@@ -376,6 +380,65 @@ ARDOUR_UI::detach_tabbable (Tabbable* t)
 	t->detach ();
 }
 
+void
+ARDOUR_UI::tabbable_state_change (Tabbable& t)
+{
+	std::vector<std::string> insensitive_action_names;
+	std::vector<std::string> sensitive_action_names;
+	Glib::RefPtr<Action> action;	
+	std::string downcased_name = downcase (t.name());
+
+	std::cerr << t.name() << " changed state\n";
+	
+	if (t.tabbed()) {
+
+		std::cerr << "tabbed\n";
+		
+		insensitive_action_names.push_back (string_compose ("attach-%1", downcased_name));
+		insensitive_action_names.push_back (string_compose ("show-%1", downcased_name));
+		sensitive_action_names.push_back (string_compose ("detach-%1", downcased_name));
+		sensitive_action_names.push_back (string_compose ("hide-%1", downcased_name));
+
+
+	} else if (t.window_visible()) {
+
+		std::cerr << "windowed\n";
+
+		insensitive_action_names.push_back (string_compose ("detach-%1", downcased_name));
+		insensitive_action_names.push_back (string_compose ("show-%1", downcased_name));
+		sensitive_action_names.push_back (string_compose ("attach-%1", downcased_name));
+		sensitive_action_names.push_back (string_compose ("hide-%1", downcased_name));
+
+	} else {
+
+		std::cerr << "invisible\n";
+		
+		/* not currently visible. allow user to retab it or just make
+		 * it visible.
+		 */
+		
+		insensitive_action_names.push_back (string_compose ("detach-%1", downcased_name));
+		insensitive_action_names.push_back (string_compose ("hide-%1", downcased_name));
+		sensitive_action_names.push_back (string_compose ("show-%1", downcased_name));
+		sensitive_action_names.push_back (string_compose ("attach-%1", downcased_name));
+	}
+
+
+	for (std::vector<std::string>::iterator s = insensitive_action_names.begin(); s != insensitive_action_names.end(); ++s) {
+		action = ActionManager::get_action (X_("Common"), (*s).c_str());
+		if (action) {
+			action->set_sensitive (false);
+		}
+	}
+
+	for (std::vector<std::string>::iterator s = sensitive_action_names.begin(); s != sensitive_action_names.end(); ++s) {
+		action = ActionManager::get_action (X_("Common"), (*s).c_str());
+		if (action) {
+			action->set_sensitive (true);
+		}
+	}
+}
+
 void
 ARDOUR_UI::toggle_meterbridge ()
 {
diff --git a/gtk2_ardour/ardour_ui_ed.cc b/gtk2_ardour/ardour_ui_ed.cc
index 18689a23c9..442ea1d97d 100644
--- a/gtk2_ardour/ardour_ui_ed.cc
+++ b/gtk2_ardour/ardour_ui_ed.cc
@@ -79,6 +79,7 @@ ARDOUR_UI::create_editor ()
 {
 	try {
 		editor = new Editor ();
+		editor->StateChange.connect (sigc::mem_fun (*this, &ARDOUR_UI::tabbable_state_change));
 	}
 
 	catch (failed_constructor& err) {
diff --git a/gtk2_ardour/ardour_ui_mixer.cc b/gtk2_ardour/ardour_ui_mixer.cc
index 773a2ed14f..6279f4c789 100644
--- a/gtk2_ardour/ardour_ui_mixer.cc
+++ b/gtk2_ardour/ardour_ui_mixer.cc
@@ -41,6 +41,7 @@ ARDOUR_UI::create_mixer ()
 {
 	try {
 		mixer = Mixer_UI::instance ();
+		mixer->StateChange.connect (sigc::mem_fun (*this, &ARDOUR_UI::tabbable_state_change));
 	}
 
 	catch (failed_constructor& err) {
-- 
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