Is it possible to display continuous data on scroll wheel container?

[Krautermann]

I have been trying to display continuous data on Scroll wheel container for the past 2 months but have been very unsuccessful. Could someone help or tell me if it's even possible to do that?? The example in the documentation does not help in that regard.

I would like to display a counter that goes from 0 to 255 on a scroll wheel but what I get is the exact same value on each row of the scroll updating in real time. What I want is each counter value displayed on each row, e.g

This is my customContainer setup:

void CustomContainer2::RX_UART(char* data)
{
	TX_BufferArea.setWideTextAction(touchgfx::WIDE_TEXT_WORDWRAP);
	sprintf(USART_Array, "%d", data);
	Unicode::strncpy(TX_BufferAreaBuffer, USART_Array, TX_BUFFERAREA_SIZE);
	TX_BufferArea.invalidate();
}

This is displayed via the View:

void Screen2View::scrollWheel2UpdateItem(CustomContainer2& item, int16_t itemIndex)
{
	item.RX_UART((char*)CounterTimer); //I feel itemIndex should be somehow added to this line here but I don't know how to do that codewise...Please help!!

	int indexOfitemAtTopOfTheList = scrollWheel2.getSelectedItem();
	scrollWheel2.animateToItem(indexOfitemAtTopOfTheList + 1);
}

In the main:

volatile uint8_t CounterTimer = 0;

void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
	if(htim->Instance == TIM2)
	{
		CounterTimer++; //Incremented every 1 second
        }
}
  

[Osman SOYKURT · Accepted solution]

Hello @Krautermann ,

I created a small example you can get inspiration from. I started from the "Scroll Wheel and List example" from TouchGFX Designer and I removed the "List" part. Then I added a handleTickEvent for the counter and made the wheel animate each 60 ticks. You'll find my project in attachment. 

Hope it helps 😉

[Krautermann]

Solution provided accepted after several days of testing.

Although user needs to modify it according to his application. Here is my modified code if anyone is interested:

void Screen2View::handleTickEvent()
{
	if(tick%1==0)
	{
		snprintf(ActualBuffer, sizeof(ActualBuffer), "%s", (char*)currentBuffer);
		if (strcmp(ActualBuffer, PreviousBuffer)!=0)
		{
			snprintf(temporaryBuffer, sizeof(temporaryBuffer), "%s", (char*)currentBuffer);
			scrollWheel1.animateToItem(scrollWheel1.getSelectedItem()-1);
			flag2Scroll1 = 1;
			snprintf(PreviousBuffer, sizeof(PreviousBuffer), "%s", ActualBuffer);
		}

		int currentCounterTimer = CounterTimer;
		if (currentCounterTimer != previousCounterTimer)
		{
			flag2Scroll2 = 1;
			scrollWheel2.animateToItem(scrollWheel2.getSelectedItem()-1);
			previousCounterTimer = currentCounterTimer;
		}
	}
}

void Screen2View::scrollWheel1UpdateItem(CustomContainer1& item, int16_t itemIndex)
{
	if(flag2Scroll1==1)
	{
	item.RX_SPI((char*)temporaryBuffer);
	flag2Scroll1 = 0;
	}
}


void Screen2View::scrollWheel2UpdateItem(CustomContainer2& item, int16_t itemIndex)
{
	if(flag2Scroll2==1)
	{
	item.RX_UART((char*)TX_Buffer4);
	flag2Scroll2 = 0;
	}
}