Using selectInput()

cameyo

I use selectInput() in the following way (see the code), because i need to stop draw() when open file. It works, but is this correct ? There are some standard examples of selectInput() method ? Thanks.

cameyo

int io=0;
int counter=0;
PFont myFont;

void setup()
{
  size(512, 512);
  smooth();
  background(0);
  myFont = createFont("xkcd", 64);
  textFont(myFont);
  textAlign(CENTER);
  io = 0;
  counter=0;
}

void draw()
{
  background(0);
  text(counter, height/2, width/2);
  counter++;
}  


void keyPressed()
{
  if (key == '1')
  {
    openData();
  }
}

void openData()
{
  println("open data...");
  // stop the draw() function
  noLoop();
  selectInput("Select a file...", "myFile");
  println("...function end.");
}

void myFile(File selection)
{
  io=1;
  if (selection == null) 
  {
    println("No file selected.");
  } else 
  {
    println("File selected: " + selection.getAbsolutePath());
    counter=0;
  }
  // restart the draw() function
  loop();
  io=0;
}

benja

Might be a better idea to use a boolean and set it when the selection-window is opened or closed and in draw() you can draw/count etc. depending on that boolean. So you still have the option to do something in the background if you want that.

void draw()
{
  background(0);

  if (!dialogOpen) {
    text(counter, height/2, width/2);
    counter++;
  } else {
    text("selecting file...", height/2, width/2);
  }
} 

cameyo

Yes. I use the "io" variable to do something on draw(). It is an integer (not boolean) because i can select use more choice (io=1 or io=0 or io=2 ecc.) Thanks.