Preset Strategy

dtucker

What is the general strategy for savings presets (could be channel presets, camera presets, or something else).

In general I see "push to recall a preset", and "hold to save a preset".

However, if you are trying to save a preset, the PUSH event will fire before the HOLD event, meaning any time you try and save a preset, the previous preset will be recalled and then resaved. In short, the problem is both PUSH and HOLD fire, not PUSH or HOLD.

I can think of several messy ways to solve this problem, such as setting a timer on PUSH and reading it on RELEASE to see if they pushed or held. But I figure there may be a more elegant solution.

How do you all generally go about handling presets?

Jim Donachiue

I use a TouchPanel Structure with a ButtonHold variable
On HOLD:
- the ButtonHold variable is set to True.
- Execute Code for a HOLD Event
On RELEASE:
- If ButtonHold is False
- Execute Code for a RELEASE Event that would otherwise be done in a PUSH Event
- the ButtonHold variable is set to False.

DEFINE_TYPE
Struct TTouchPanel
{
	Integer Initialized;//Deprecate AFL v3.0

	Integer State;
	Integer OnlineStatus;
	Integer Zone;

	//Indexes
	Integer Use;
	Integer Source;
	Integer Display;
	Integer Audio;
	Integer MatrixSource;
	Integer MatrixDisplay;

	Char ActivePage[LEN_NAME];
	Char ActivePopup[LEN_NAME];

	//A Button on the Panel is in Hold State
	Integer ButtonHold;
}

DEFINE_EVENT
BUTTON_EVENT[tpsAudio, btnsAudioUp]
{
	HOLD[5, REPEAT]:
	{
		System.CurrentPanelIndex = Get_Last(tpsAudio);
		//Set ButtonHold to True
		TTouchPanel_SetButtonHold(System.CurrentPanelIndex, True);
		//Code to Execute
		TTouchPanel_SetAudio(System.CurrentPanelIndex,
			Button.Input.Channel - OFFSET_VOLUME_UP);
		Handle_AudioVolumeUp(System.CurrentPanelIndex, True);
	}
	RELEASE:
	{
		System.CurrentPanelIndex = Get_Last(tpsAudio);
		if ( !TTouchPanel_GetButtonHold(System.CurrentPanelIndex) )
		{//If ButtonHold is False then execute code
			TTouchPanel_SetAudio(System.CurrentPanelIndex,
				Button.Input.Channel - OFFSET_VOLUME_UP);
			Handle_AudioVolumeUp(System.CurrentPanelIndex, False);
		}
		//Set ButtonHold to False
		TTouchPanel_SetButtonHold(System.CurrentPanelIndex, False);
	}
}

nickm

Don't use the PUSH event. Only use the HOLD and RELEASE events. Like so:

BUTTON_EVENT [dvTP,1] {
  PUSH : {}
  HOLD[5] : {
    nFlag = 1

    // save preset
  }
  RELEASE : {
    IF(!nFlag) {
      // recall preset
    }

   OFF[nFlag]
  }
}

dtucker

Thanks guys. That'll work fine.

a_riot42

I don't use the hold event for presets due to a bug in Netlinx, which I don't think has been fixed yet. If you have multiple instances of a module running that contains a structure for the presets, when you try to do an assignment in the hold event to the structure, its always the first module's structure that gets written to.
Paul