step 2 of keyboard focus work for plugin windows

git-svn-id: svn://localhost/ardour2/branches/2.0-ongoing@4026 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 47 insertions, 0 deletions

diff --git a/gtk2_ardour/plugin_ui.cc b/gtk2_ardour/plugin_ui.cc
index 4918523af3..eae9e190eb 100644
--- a/gtk2_ardour/plugin_ui.cc
+++ b/gtk2_ardour/plugin_ui.cc
@@ -170,6 +170,22 @@ PluginUIWindow::on_leave_notify_event (GdkEventCrossing *ev)
 	return false;
 }
 
+bool
+PluginUIWindow::on_focus_in_event (GdkEventFocus *ev)
+{
+	Window::on_focus_in_event (ev);
+	//Keyboard::the_keyboard().magic_widget_grab_focus ();
+	return false;
+}
+
+bool
+PluginUIWindow::on_focus_out_event (GdkEventFocus *ev)
+{
+	Window::on_focus_out_event (ev);
+	//Keyboard::the_keyboard().magic_widget_drop_focus ();
+	return false;
+}
+
 void
 PluginUIWindow::on_show ()
 {
@@ -330,6 +346,17 @@ PlugUIBase::PlugUIBase (boost::shared_ptr<PluginInsert> pi)
 
 	bypass_button.set_name ("PluginBypassButton");
 	bypass_button.signal_toggled().connect (mem_fun(*this, &PlugUIBase::bypass_toggled));
+
+	focus_button.signal_button_release_event().connect (mem_fun(*this, &PlugUIBase::focus_toggled));
+	focus_button.add_events (Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK);
+
+	/* these images are not managed, so that we can remove them at will */
+
+	focus_out_image = new Image (get_icon (X_("computer_keyboard")));
+	focus_in_image = new Image (get_icon (X_("computer_keyboard_active")));
+	
+	focus_button.add (*focus_out_image);
+	ARDOUR_UI::instance()->set_tip (&focus_button, _("Click to focus all keyboard events on this plugin window"), "");
 }
 
 void
@@ -391,6 +418,26 @@ PlugUIBase::bypass_toggled ()
 	}
 }
 
+bool
+PlugUIBase::focus_toggled (GdkEventButton* ev)
+{
+	if (Keyboard::the_keyboard().some_magic_widget_has_focus()) {
+		Keyboard::the_keyboard().magic_widget_drop_focus();
+		focus_button.remove ();
+		focus_button.add (*focus_out_image);
+		focus_out_image->show ();
+		ARDOUR_UI::instance()->set_tip (&focus_button, _("Click to focus all keyboard events on this plugin window"), "");
+	} else {
+		Keyboard::the_keyboard().magic_widget_grab_focus();
+		focus_button.remove ();
+		focus_button.add (*focus_in_image);
+		focus_in_image->show ();
+		ARDOUR_UI::instance()->set_tip (&focus_button, _("Click to remove keyboard focus from this plugin window"), "");
+	}
+
+	return true;
+}
+
 void
 PlugUIBase::update_presets ()
 {