How to perform action on REPEAT button release

[reniervdw1]

I have a simple repeat button that increments a value as you hold it in. However, I would like to change the repeat button on release so that the next time it is held in, it decrements the value.

I'm new to object orientated programming as well so a complete answer will be highly appreciated. Thanks

[TDK]

You don't need any object oriented programming to do this. Are you new to all programming? Have you looked at any sample projects? Have you made a project which just blinks an LED? Gotta start somewhere.

[Martin KJELDSEN]

When the RepeatButton is PRESSED, an internal timer starts. For each tick, it executes some code and in this code a callback is fired (the standard callback inherited from the Button class).

void RepeatButton::handleTickEvent()
{
 Button::handleTickEvent();
 
 if (pressed)
 {
 ...
 }
}

So, basically, you need to do two things:

• Keep track of a new variable that toggles between modes (increase, decrease)
• Modify the handleTickEvent method to be able to also decrease a counter and not just increase.

Take a look at RepeatButton.cpp.

/Martin

[reniervdw1]

Hi Martin,

Thanks for the reply I appreciate it

Seems like all is working now.

I had to make use of static functions and variables inside the Model. Is that bad practice or can I leave it that way?

[Esbenimu]

Thanks for your quick answer. Yes, I added the RepeatButton.cpp software as follows, but it didn't work at all.

void RepeatButton::handleTickEvent()

{

  Button::handleTickEvent();

  if (!pressed)

  {

   Long_Press_Control = 0; // esbenimu

    return;

  }

  if (ticks == ticksBeforeContinuous)

  {

   Long_Press_Control = BUT_STILL_PUSH; // esbenimu

    executeAction();

    ticks = 0;

    ticksBeforeContinuous = ticksInterval;

  }

  else

  {

    ticks++;

  }

}

I also added a code as below. In this code, only the first button is pressed, it becomes Pressed, as long as the button is pressed, it is not pressed again.

In other words, although the button remains pressed, the led does not stay on, it goes out.

I also checked if it is constantly in this routine, it does.

(Timer_Set_Value ++;

Timer_Set_Value_Change = 1;)

MainScreenView.cpp

void MainScreenView::handleTickEvent()

{

if (ManuelButton.getPressedState())

{

Long_Press_Control = BUT_STILL_PUSH;

HAL_GPIO_WritePin(BUT3_LED_RD_GPIO_Port, BUT3_LED_RD_Pin, GPIO_PIN_SET);

}

else

{

Long_Press_Control = 0;

Timer_Set_Value ++;

Timer_Set_Value_Change = 1;

HAL_GPIO_WritePin(BUT3_LED_RD_GPIO_Port, BUT3_LED_RD_Pin, GPIO_PIN_RESET);

}

}