update_io_button: store input() or output() in a variable

This avoids repeating "if (for_input)" checks.

diff --git a/gtk2_ardour/mixer_strip.cc b/gtk2_ardour/mixer_strip.cc
index 77b203e7fb12014f67afbadb42b3659a00237e9e..f8386e7706ee0b4f2fdea75a14b04300dca42264 100644 (file)
--- a/gtk2_ardour/mixer_strip.cc
+++ b/gtk2_ardour/mixer_strip.cc
@@ -38,6 +38,7 @@
 #include "ardour/audio_track.h"
 #include "ardour/audioengine.h"
 #include "ardour/internal_send.h"
+#include "ardour/io.h"
 #include "ardour/meter.h"
 #include "ardour/midi_track.h"
 #include "ardour/pannable.h"
@@ -1209,6 +1210,7 @@ MixerStrip::update_io_button (boost::shared_ptr<ARDOUR::Route> route, Width widt
 {
        uint32_t io_count;
        uint32_t io_index;
+       boost::shared_ptr<IO> io;
        boost::shared_ptr<Port> port;
        vector<string> port_connections;
 
@@ -1243,20 +1245,17 @@ MixerStrip::update_io_button (boost::shared_ptr<ARDOUR::Route> route, Width widt
        }
 
        if (for_input) {
-               io_count = route->n_inputs().n_total();
+               io = route->input();
                tooltip << string_compose (_("<b>INPUT</b> to %1"), Gtkmm2ext::markup_escape_text (route->name()));
        } else {
-               io_count = route->n_outputs().n_total();
+               io = route->output();
                tooltip << string_compose (_("<b>OUTPUT</b> from %1"), Gtkmm2ext::markup_escape_text (route->name()));
        }
 
+       io_count = io->n_ports().n_total();
 
        for (io_index = 0; io_index < io_count; ++io_index) {
-               if (for_input) {
-                       port = route->input()->nth (io_index);
-               } else {
-                       port = route->output()->nth (io_index);
-               }
+               port = io->nth (io_index);
 
                port_connections.clear ();
                port->get_connections(port_connections);