From b2f0cb564a296653c83b0a64c0f9a3de0a2f0d5e Mon Sep 17 00:00:00 2001
From: Roland Reichwein <mail@reichwein.it>
Date: Mon, 6 Jan 2025 00:15:32 +0100
Subject: Implement touchpad

---
 UI.cpp | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

(limited to 'UI.cpp')

diff --git a/UI.cpp b/UI.cpp
index 5d304b0..2dab410 100644
--- a/UI.cpp
+++ b/UI.cpp
@@ -61,16 +61,16 @@ UI::UI(Config& config):
   m_active_sensing_timestamp{},
   m_midi_timestamp{},
   m_note_bpm{},
-  m_clock_bpm{}
+  m_clock_bpm{},
+  m_touchpad{}
 {
 }
 
 bool UI::key_available() {
   struct pollfd fds{};
-  int ret;
   fds.fd = 0; // stdin
   fds.events = POLLIN;
-  ret = poll(&fds, 1, 0);
+  int ret = poll(&fds, 1, 0);
   if (ret == 0)
     return false;
   else if (ret == 1)
@@ -179,6 +179,7 @@ void UI::draw()
 
 void UI::handle_input()
 {
+  // handle console key
   if (key_available()) {
     char c;
     std::cin >> c;
@@ -206,6 +207,20 @@ void UI::handle_input()
       log_cout << fmt::format("Unknown key: {}", c) << std::endl;
     }
   }
+
+  // handle touchpad
+  if (m_touchpad.is_valid() && m_touchpad.event_available()) {
+    input_event ev = m_touchpad.get_event();
+
+    if (m_touchpad.event_is_button1(ev)) {
+      m_config.set_mode((m_config.get_mode() + 1) % 3);
+    } else if (m_touchpad.event_is_button2(ev)) {
+      if (!m_midi_monitor.empty()) {
+        m_config.set_midi_channel(m_midi_monitor.front().first);
+        m_config.set_midi_note(m_midi_monitor.front().second);
+      }
+    }
+  }
 }
 
 void UI::count_main_loops()
-- 
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