Inquire about how to set the scroll wheel step change.

[mSH.1]

hello

The scroll wheel is set and used as follows.

​​

void ScrTopSetView::scrollWheel_ScrTopSet_minuteUpdateCenterItem(CustomContainer_temp_wheel& item, int16_t itemIndex)
{
    // Override and implement this function in ScrTopSet
 
	int data;
 
	minute = itemIndex;
 
	  Unicode::snprintf(textArea_ScrTopSet_nMinuteBuffer, TEXTAREA_SCRTOPSET_NMINUTE_SIZE, "%02d", (minute ));
 
	 textArea_ScrTopSet_nMinute.invalidate();
 
}

One step at a time is good.

I need a configuration that changes by 1 step or 10 steps depending on the setting value, but I am not sure how to set the 10 step change.

I'd like to know how to set the level at which the scroll wheel changes.

thank.​

[Osman SOYKURT]

Hello mSH.1,

I'm not sure about what you mean by "1 step or 10 steps depending on the setting value"

Do you want to set the speed of your scroll ? If yes, that's possible in TouchGFX Designer with Swipe Acc. and Drag Acc. :

 

We have a very good documentation which explains the scroll wheel in detail, and also some example with code. I invite you to have a look at it. If you still have question, don't hesitate to write in this post again.

/Osman

[mSH.1]

hello, @Osman SOYKURT​ 

-> It is implemented by referring to the basic example.

The scroll wheel value changes in one step.

​

-> What I need is to change the value of the scroll wheel by 10 steps.

​

Show 10 steps on the scroll wheel and void ScrTopSetView::scrollWheel_ScrTopSet_minuteUpdateCenterItem(CustomContainer_temp_wheel& item, int16_t itemIndex)

In the function, the value of itemindex changes in 10 steps.

I'm trying to set it up while looking at the API, but I'm not sure yet

tnank.​

[Osman SOYKURT]

Hello mSH.1,

Ok, then I think you can use scrollWhellUpdateItem() function. You can then update your item like that :

item.updateText(itemIndex*10);

We have an example of scroll wheel usage on TouchGFX Designer, I invite your to have a look at it.

Another solution would be to update your scroll wheel in it entire with function like :

scrollWheel.setNumberOfItems(ITEM_NUMBER)

if you want to filter your items, then use modulo (%) to show what you want, for instance if you want 0, 10, 20, 30, then a %10 is good.

/Osman

[mSH.1]

hello, @Oskt (ST Employee)​ 

Thanks for the helpful answer for me.