https://github.com/neu-rah/ArduinoMenu/issues/240

Author: neu-rah

library.properties

@@ -1,5 +1,5 @@
 name=ArduinoMenu library
-version=4.17.19
+version=4.17.20
 author=Rui Azevedo, [email protected]
 maintainer=neu-rah, [email protected]
 sentence=Generic menu/interactivity system

src/items.cpp

@@ -207,20 +207,22 @@ Used textField::printTo(navRoot &root,bool sel,menuOut& out, idx_t idx,idx_t len
     out.fmtStart(*this,menuOut::fmtTextField,root.node(),idx);
   #endif
   idx_t tit=hasTitle(root.node())?1:0;
+  idx_t c=l+1;//initial cursor, after label
   idx_t line=idx+tit;//-out.tops[root.level];
-  idx_t c=l+1;
-  idx_t w=len-l;
-  idx_t at=cursor>=w?cursor-w:0;
-  trace(MENU_DEBUG_OUT<<"at:"<<at<<" tit:"<<tit<<" line:"<<line<<" cursor:"<<cursor<<" l:"<<l<<" len:"<<len);//<<endl;)
-  while(buffer()[at]&&l++<len)
-    if (at==cursor&&editing) {
-      // MENU_DEBUG_OUT<<"idx:"<<idx<<" line:"<<line<<" at:"<<at<<" l:"<<l<<endl;
-      // c=l+1;
+  idx_t ew=len-c;//editable width
+  idx_t at=cursor>=ew?cursor-ew:0;//adjust print start
+  while(buffer()[at]&&l++<len) {//while not string terminated or buffer length reached
+    trace(if (editing) MENU_DEBUG_OUT<<endl<<"{"<<at<<"}");
+    if (at==cursor&&editing) {//edit cursor
+      trace(MENU_DEBUG_OUT<<"ew:"<<ew<<" cursor:"<<cursor<<" l:"<<l<<" len:"<<len<<endl);
+      c=l;//store cursor position
       l+=out.startCursor(root,l,line,charEdit);//draw text cursor or color code start
       out.write(buffer()[at++]);//draw focused character
       l+=out.endCursor(root,l,line,charEdit);//draw text cursor or color code end
-    } else out.write(buffer()[at++]);
-  out.editCursor(root,c+cursor,line,editing,charEdit);//reposition a gfx cursor
+    } else out.write(buffer()[at++]);//just the character
+  }
+  //this is the cursor frame
+  out.editCursor(root,c,line,editing,charEdit);//reposition a gfx cursor
   #ifdef MENU_FMT_WRAPS
     out.fmtEnd(*this,menuOut::fmtTextField,root.node(),idx);
   #endif

src/menuIO/serialOut.cpp

@@ -2,7 +2,12 @@
 #include "serialOut.h"
 
 namespace Menu {
-  constMEM panel default_serial_panels[] MEMMODE={{0,0,40,10}};
+  #ifdef MENU_DEBUG
+    constexpr idx_t w=16;
+  #else
+    constexpr idx_t w=40;
+  #endif
+  constMEM panel default_serial_panels[] MEMMODE={{0,0,w,10}};//arbitrary serial panel dimensions
   navNode* default_serial_nodes[sizeof(default_serial_panels)/sizeof(panel)];
   panelsList default_serial_panel_list(
     default_serial_panels,