Merge pull request #324 from felixkosmalla/LiquidCrystalAlternative

Added support for alternative LiquidCrystal I2C Library

Author: neu-rah

src/menuIO/liquidCrystalOutI2C.h

@@ -0,0 +1,43 @@
+/* -*- C++ -*- */
+
+//for using I2C LiquidCrystal Library provided by
+// https://gitlab.com/tandembyte/LCD_I2C
+
+#ifndef RSITE_ARDUINO_MENU_LIQUIDCRYSTALOUT
+  #define RSITE_ARDUINO_MENU_LIQUIDCRYSTALOUT
+  #include "../menuDefs.h"
+  #include <LiquidCrystal_I2C.h>
+
+  namespace Menu {
+
+    class liquidCrystalOut:public cursorOut {
+      public:
+        LiquidCrystal_I2C& device;
+        inline liquidCrystalOut(LiquidCrystal_I2C& o,idx_t *t,panelsList &p,menuOut::styles s=minimalRedraw)
+          :cursorOut(t,p,s),device(o) {}
+        size_t write(uint8_t ch) override {return device.write(ch);}
+        void clear() override {
+          device.clear();
+          panels.reset();
+        }
+        void setCursor(idx_t x,idx_t y,idx_t panelNr=0) override {
+          const panel p=panels[panelNr];
+          device.setCursor(p.x+x,p.y+y);
+        }
+        idx_t startCursor(navRoot& root,idx_t x,idx_t y,bool charEdit,idx_t panelNr=0) override {return 0;}
+        idx_t endCursor(navRoot& root,idx_t x,idx_t y,bool charEdit,idx_t panelNr=0) override {return 0;}
+        idx_t editCursor(navRoot& root,idx_t x,idx_t y,bool editing,bool charEdit,idx_t panelNr=0) override {
+          //text editor cursor
+          device.noBlink();
+          device.noCursor();
+          if (editing) {
+            device.setCursor(x, y);
+            if (charEdit) device.cursor();
+            else device.blink();
+          }
+          return 0;
+        }
+    };
+
+  }//namespace Menu
+#endif