Changing a box size in presentation view

Georg Hajdu

This only works in regular view. How do I make this work in presentation view?

function list(a)
{
if(isNaN(this.patcher.parentpatcher)==0){return;}
var myrect =this.patcher.box.rect;
var width = arguments[0];
var height = arguments[1];
myrect[2] = myrect[0]+width;
myrect[3] = myrect[1]+height;
this.patcher.box.rect = myrect;
post("resizing bcanvas to",myrect);
post();
}

Georg

Tj Shredder

I do this outside js with a presentation_size message or with a presentation_rect message...

Julien Vincenot

Anyone else has a solution for this? Working from the outside doesn't work from me I'm dealing with a library of bpatchers. I already can resize them dynamically with this.patcher.box.rect
but I can't find the equivalent message so that this resize also applies in presentation mode.
Any ideas? Thanks !

11OLSEN

For whatever reason you have to work with a scripting message for pres mode positioning of bpatchers:

var boxpos = new Array(4); boxpos[0] = 50 boxpos[1] = 50 boxpos[2] = 150 boxpos[3] = 150 this.patcher.message("script", "sendbox", "scrname", "presentation_rect", boxpos);

You can also set "presentation_size" or "presentation_position" using only two values.

Julien Vincenot

Thank you @11OLSEN !

I just tried (unsuccessfully) to integrate this. I'm not sure what I'm missing.

I put this in a js object, inside the test abstraction I call with my bpatcher.

function bang()
{
    post("sent a bang");
    var boxpos = new Array(4);
    boxpos[0] = 50
    boxpos[1] = 50
    boxpos[2] = 150
    boxpos[3] = 150
    this.patcher.message("script", "sendbox", "scrname", "presentation_rect", boxpos);
}

Now from the outside (in my main patch, which contains the bpatcher), I switch to presentation mode, click the bang inside the bpatcher but nothing happens.

Could you maybe give me a small example patch or show me what I'm missing??

Now I'm worried about the "scrname" part, is that a variable I don't know about or should I give the bpatcher an explicit name?... That would be kind of a deal breaker for me. I'm making a bpatcher library i.e. all my objects can be called many times. I can't really expect users to add a scripting name for each instance for this to work... :(

11OLSEN

If you are inside the bpatcher you have to add "parentpatcher". That's the one containing and scripting the bpatcher. And you could assign random names automatically to get around the varname problem.


function bang()
{
    post("sent a bang");

    var thevarname = this.patcher.box.varname;
    // making sure the bpatcher has a scripting name 
    if (thevarname=="")
        this.patcher.box.varname = thevarname = "bp" + Math.floor(Math.random() * Date.now());
    
     var boxpos = new Array(4);
    boxpos[0] = 50
    boxpos[1] = 50
    boxpos[2] = 150
    boxpos[3] = 150
    this.patcher.parentpatcher.message("script", "sendbox", thevarname, "presentation_rect", boxpos);
}

Julien Vincenot

Wow excellent thank you so much it works now.
I had no idea you could assign a varname from the inside like this, pretty slick !

Julien Vincenot

Sorry , I realize there's something else I'm missing here.
Do you know by any chance how I can retrieve the curent presentation rect of the bpatcher, also from the inside?

I tried adding this line I found on an older topic outlet(0,this.patcher.getattr("presentation_rect"));
but it returns something strange like this
js -1407374883553280

Do you know another way to do this by any chance?
My toggling system circles between different sizes of the bpatcher (to hide/reveal settings for instance) and I need to keep the object's location for it to work properly.

11OLSEN

this.patcher.box.rect will give you the right values depending on which view you are in.