Implemented auto increment / decrement in changevaluedisplay

src/changevaluedisplay.h

@@ -3,6 +3,9 @@
 // system includes
 #include <type_traits>
 
+// 3rdparty lib includes
+#include <espchrono.h>
+
 // local includes
 #include "displaywithtitle.h"
 #include "textinterface.h"
@@ -76,6 +79,15 @@ private:
 
     int m_rotateOffset;
     bool m_pressed{};
+
+    struct ButtonHeldInfo
+    {
+        espchrono::millis_clock::time_point nextTimestamp;
+        int counter{};
+    };
+
+    std::optional<ButtonHeldInfo> m_upHeld;
+    std::optional<ButtonHeldInfo> m_downHeld;
 };
 
 template<typename Tvalue>
@@ -87,6 +99,9 @@ void ChangeValueDisplay<Tvalue>::start()
 
     m_rotateOffset = 0;
     m_pressed = false;
+
+    m_upHeld = std::nullopt;
+    m_downHeld = std::nullopt;
 }
 
 template<typename Tvalue>
@@ -94,14 +109,30 @@ void ChangeValueDisplay<Tvalue>::update()
 {
     Base::update();
 
-    if (!m_pressed)
+    const auto now = espchrono::millis_clock::now();
+    if (m_upHeld && now >= m_upHeld->nextTimestamp)
+    {
+        using namespace std::chrono_literals;
+        m_upHeld->nextTimestamp += m_upHeld->counter > 10 ? 50ms : (m_upHeld->counter > 3 ? 100ms : 200ms);
+        m_upHeld->counter++;
+        m_rotateOffset--;
+    }
+    if (m_downHeld && now >= m_downHeld->nextTimestamp)
+    {
+        using namespace std::chrono_literals;
+        m_downHeld->nextTimestamp += m_downHeld->counter > 10 ? 50ms : (m_downHeld->counter > 3 ? 100ms : 200ms);
+        m_downHeld->counter++;
+        m_rotateOffset++;
+    }
+
     {
         const auto rotateOffset = m_rotateOffset;
         m_rotateOffset = 0;
 
         m_value -= rotateOffset * this->step();
     }
-    else
+
+    if (m_pressed)
     {
         m_pressed = false;
         if (auto result = static_cast<AccessorInterface<Tvalue>*>(this)->setValue(m_value); result)
@@ -133,8 +164,15 @@ void ChangeValueDisplay<Tvalue>::buttonPressed(Button button)
     {
     case Button::Left: this->back(); break;
     case Button::Right: m_pressed = true; break;
-    case Button::Up: m_rotateOffset--; break;
-    case Button::Down: m_rotateOffset++; break;
+    using namespace std::chrono_literals;
+    case Button::Up:
+        m_rotateOffset--;
+        m_upHeld = ButtonHeldInfo { .nextTimestamp = espchrono::millis_clock::now() + 300ms };
+        break;
+    case Button::Down:
+        m_rotateOffset++;
+        m_downHeld = ButtonHeldInfo { .nextTimestamp = espchrono::millis_clock::now() + 300ms };
+        break;
     }
 }
 
@@ -143,7 +181,16 @@ void ChangeValueDisplay<Tvalue>::buttonReleased(Button button)
 {
     //Base::buttonPressed(button);
 
-    // TODO stop auto scroll
+    switch (button)
+    {
+    case Button::Up:
+        m_upHeld = std::nullopt;
+        break;
+    case Button::Down:
+        m_downHeld = std::nullopt;
+        break;
+    default:;
+    }
 }
 
 } // namespace espgui

src/menudisplay.cpp

@@ -15,6 +15,9 @@ void MenuDisplay::start()
 
     m_rotateOffset = 0;
     m_pressed = false;
+
+    m_upHeld = std::nullopt;
+    m_downHeld = std::nullopt;
 }
 
 void MenuDisplay::initScreen()