drawText BUTTON Flags

[plucky]

Hi,

I saw those drawText BUTTON Flags (BUTTON_RIGHT, BUTTON_LEFT, BUTTON_LEFTDBLCLK) in the help file and I could not understand how/where they are used.

Anyone out there to tell?

thanks

[ckryza]

Here is an example:

Click on button and it will toggle a band on and off. Double-click in the indicator and it will draw a blue vertical bar where you double-clicked.

Chris

 // external variables
var cPriceBarColor        = Color.red;
var bButtonPressed        = false;
var bDrawBand            = false;

//== PreMain function required by eSignal to set things up
function preMain() {

    setPriceStudy( false );
    setStudyTitle( "Button Demo" );
    setShowCursorLabel( false );
    setDefaultBarFgColor( cPriceBarColor );
    setDefaultBarThickness( 3, 0 );

}

//== Main processing function
function main( ) {
var xFlags = Text.ONTOP | Text.BUTTON | Text.RELATIVETOLEFT | Text.RELATIVETOBOTTOM;
    
    // called when script initializes
    if (getBarState() == BARSTATE_ALLBARS) {
        return null;
    }
    nResult = ( high() - high( -5 ) ) / low() ;

    if ( isLastBarOnChart() && bDrawBand == true ) {
        addBand( 0, PS_SOLID, 5, Color.black, -66 );
    }
    drawTextAbsolute(0, 20, " Toggle Band @URL=EFS:changeColor",  Color.black, Color.grey, xFlags , "Courier New", 11, -55);     
    return( nResult );
}

//== function determines if a button was pressed
function getButtonPressed(nButtonPressed) {
    if(nButtonPressed == BUTTON_LEFT) {
        return(1);
    }
    else {
        return(0);
    }
}
//== performs a specific task if our button was pressed
function changeColor( nButtonPressed ) {
    if ( getButtonPressed( nButtonPressed ) == 1 ) {
       bButtonPressed = true;
       bDrawBand = !bDrawBand;
       clearBands();
       main();
    }
    return;
}