LCD scroll text single line with button

Projects Programming
1

Hello, good day. This program will display text on the 16x2 lcd on line 1 and 2, and the text on line 2 will scroll. But I want when the button is pressed, on line 2 the text will change the other text but not scrolling. I tried my program and on line 2 "text" can scroll then I press the button but there is no change. Can you please give me a solution. thank you for your help.

This my program code :

#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x3F,16,2);  // set the LCD address to 0x27 for a 16 chars and 2 line display
int Pressed1 = 0;
int buttonPin1 = 2;


String txtsc,txtnosc;
void setup(){
  txtsc="Press the button  ";
  lcd.begin();
  lcd.setCursor(0,0);
  lcd.print("Welcome ");
}

void loop(){

          lcd.setCursor(0,1);
          txtsc=ScrollTxt(txtsc);
           lcd.print(txtsc);
           delay(300);

    if(Pressed1 == 0) {
    if (digitalRead(buttonPin1) == HIGH) {
      Pressed1 = 1;
    } else {
    lcd.setCursor(0,1);
    lcd.print("Thank You! ");
    }
      
}
}
String ScrollTxt(String txt){
 return txt.substring(1,txt.length()) + txt.substring(0,1);
}

The result that I want looks :

Welcome
Press the button   <<<this line will scroll

<When button pressed>
Welcome
Thank you    <<<not scroll
2

UP

anyone who can help me ??

3

If you don't want the text to scroll, under some conditions, why do you unconditionally call ScrollTxt()?

You need to do a MUCH better job of describing the conditions under which the text should, and should not, scroll. Then, it will be trivial to determine whether to call Scrollxt(), or not.