Which array triggered button? (How do you do your grids/matrixes?)

travis wrote:

say you have a couple arrays of button numbers and you stack them on a button event, how can you figure out which array the button is in?

DEFINE_DEVICE

dvTp = 10001:1:0

DEFINE_CONSTANT

INTEGER nGridButtons[] = {

   11,12,13,14,15,	// row 1 columns 1-5
   21,22,23,24,25, 	// row 2 columns 1-5
   31,32,33,34,35 	// row 3 columns 1-5

}

INTEGER nNumberOfRows		= 3
INTEGER nNumberOfColumns 	= 5

DEFINE_EVENT

BUTTON_EVENT[dvTP,nGridButtons] {

   PUSH: {
   
      INTEGER index
      INTEGER row
      INTEGER column
      
      index = GET_LAST(nGridButtons)
      
      row = index / nNumberOfColumns
      IF (index % nNumberOfColumns) {row++}
      
      IF (index % nNumberOfColumns = 0) {column = nNumberOfColumns}
      ELSE {column = (index % nNumberOfColumns)}
      
      SEND_STRING 0,"'BUTTON.INPUT.CHANNEL = ',ITOA(BUTTON.INPUT.CHANNEL)"
      SEND_STRING 0,"'Index = ',ITOA(index)"
      SEND_STRING 0,"'Row = ',ITOA(row)"
      SEND_STRING 0,"'Column = ',ITOA(column)"
      
      
   }

}

      row = index / nNumberOfColumns
      IF (index % nNumberOfColumns) {row++}

vining wrote: »

You could try

BUTTON_EVENT[tp,0]
{
PUSH:{
    SELECT
      {
      ACTIVE(get_last(btns1)):
          {
           //
          }
      ACTIVE(get_last(btns2)):
          {
           //
          }
     }

travis wrote: »

These are for the other way to align the grid (sometimes you aren't the one who numbers things):

{
1,4,7,
2,5,8,
3,6,9
}

JasonS wrote: »

Straight out of my 2010 Programmer re-Certification Practical exam:

INTEGER cSw_Btns[]		= {11, 12, 13, 14, 21, 22, 23, 24, 31, 32, 33, 34, 41, 42, 43, 44, 51, 52, 53, 54, 
				    61, 62, 63, 64, 71, 72, 73, 74, 81, 82, 83, 84, 91, 92, 93, 94, 101, 102, 103, 104,
				    111, 112, 113, 114, 121, 122, 123, 124}

BUTTON_EVENT [tpSwitch, cSw_Btns]
{
    PUSH:
    {
        STACK_VAR INTEGER Input
	STACK_VAR INTEGER Output
	    
	Input = Button.Input.Channel / 10
	Output = Button.Input.Channel % 10
	SEND_STRING dvSwitch, "ITOA(Input), '*', ITOA(Output), 'S'"
    }
}

This is not limited to numbers below 10, just change your divisor. It is much easier to understand in increments of 10 however. Does require consecutive button numbers, but that is no big deal IMO. Why write two button events and use a variable to store the value of the first one triggered when you can do it all in one event? On the other hand I don't really find occasion to use a grid of buttons very often.

travis wrote: »

say you have a couple arrays of button numbers and you stack them on a button event, how can you figure out which array the button is in?

DEFINE_CONSTANT
btns1[] = [1,16,99]
btns2[] = [13,2,5]

BUTTON_EVENT[tp,btns1]
BUTTON_EVENT[tp,btns2]
{
PUSH:{
//was this btns1 or btns2?
}
}
[code]

if the buttons are in some kind of order, you can do math to figure it out, but is there any trick for GET_LAST or something like that?
This must come up all the time for grids of buttons, like a matrix switcher. 
I did it with a bunch of math, but it was pain. At least now I have an include of a  bunch of Grid functions. 

I'm coming back to it a few months later, thinking there must be an easy way. But when I started, it turned out to be just as much work.[/QUOTE]
 
This is easy, and I stack EVENTS when I can. It makes sense when you have similar functions, although there are other (cleaner) ways to do it.

Here is my solution:

[Code]
DEFINE_CONSTANT
btns1[] = [1,16,99]
btns2[] = [13,2,5]

BUTTON_EVENT[tp,btns1]
BUTTON_EVENT[tp,btns2]
{
    PUSH:
    {
	STACK_VAR INTEGER intButton
	STACK_VAR INTEGER intLoop
	STACK_VAR INTEGER intButtonArray
	
	intButton = BUTTON.INPUT.CHANNEL
	FOR(intLoop = 1; intLoop <= LENGTH_ARRAY(btns1); intLoop++)
	{
	    IF(intButton == btns1[intLoop])
	    {
		intButtonArray = 1
		BREAK
	    }
	    ELSE IF(intButton == btns2[intLoop])
	    {
		intButtonArray = 2
		BREAK
	    }
	}
	SEND_STRING 0, "'Button number ',ITOA(intButton), 'from "btns',ITOA(intButtonArray), '" array was pushed!'"
    }
}

vining wrote: »

I would scrub the loop and just use two get_last.

nBtn1 = get_last (btns1);
nBtn2 = get_last (btns2);

if theres a match one var will be 0 and the other will hold the index value. Then if/else if