Hi, just started using controlP5's newest version (0.2.12) and had a few questions:

why do all the interface elements have an unsightly line through them when in OPENGL mode?  (something to do with how OPENGL renders shapes/faces, i believe, since i see same problem with seams between other shapes.)

the Knob element is drawn with lines that are affected by strokeWeight!  i believe it would be better form if they force weight to 1 pixel.  anything else distorts the control and can make it unusable.  (make a knob that changes strokeWeight to see what i mean.)

why do control labels force your text into all caps?  the text field element displays lowercase, so it's not a font limitation.

what's the proper way to round off control values, or only allow Ints?  i tried this, which actually worked fine, but gave me error "exception: java.lang.reflect.InvocationTargetExceptionERROR. an error occured while forwarding a Controller value to a method in your program. please check your code for any possible errors that might occur in this method."  obviously some recursive warning, what's the correct way to do it?

Code:

void Line_Weight(float _lw) {
  _lw = round(_lw);
  lineWeight = _lw; 
  controlP5.controller("Line_Weight").setValue(_lw);     // by the way, why doesn't 'this' work here?
}
 

i know it seems redundant, but if you don't force the setValue inside the event method, the rounded off value gets immediately overwritten by a non-rounded value.  perhaps i should be defining a different or additional method?

i know some of these questions i can resolve by extending classes, but i thought there might be a better way...

thanks

eric

okay i answered my own question about rounding off or using ints, stupid of me, i thought from the examples that controller functions only took floats but you can just recast the parameter as an Int and voila.

here is a knob example showing what i mean with the strokeWeight problem.  

Code:

import controlP5.*;
ControlP5 controlP5;
float lineWeight;
Knob lwControl;

void setup() {
  size(200,200);
  smooth();
  controlP5 = new ControlP5(this);
  lwControl = controlP5.addKnob("stroke_Weight", 1,20, 1, 75,75, 25);
}

void draw() {
  background(0);
  stroke(255);
  line(25,25,175,25);
}

void stroke_Weight(int _lw) {
  g.strokeWeight(_lw);
}
 

Hi,

I'm running across this strokeWeight issue with a textField, a slider changes line width for a drawing program, but also changes the linewidth of the textfield!

The workaround I used is to set the strokeWeight back to 1 and then call the textfield.draw() method.

Looking at the source for textfield and knob I see that knob has some extra lines for handling the strokeWeight issue.