How to pass arguments in PApplet main method?

somyungoh

Hello. I'm working processing on Eclipse IDE.

Currently, I have 2 main thread, one from normal Java Application, and the other from PApplet. Problem is that, when I call PApplet main method , I need to pass Objects, for example:

public static void main(String args[],Object obj) { PApplet.main(Object obj, new String[] {"Visualization.Test"}); }

Or, is there a possible way to pass references to PApplet not using static variable?

GoToLoop

PApplet's "igniter" main() can at most pass the extra String[]'s elements after "sketch_name" as args[]:

//forum.processing.org/two/discussion/12483/
// how-to-pass-arguments-in-papplet-main-method

// GoToLoop 2015-Sep-12

public static void main(String[] args) {
  String[] mainSketch = concat(new String[] { getSketchClassName() }, args);
  PApplet.main(mainSketch);

  String[] sketches = getSketchNestedClassNames();
  String[] myArgs = { getSketchClassName(), sketches[0], str(PI) };
  for (String sketch : sketches)  main(sketch, myArgs);
}

public static final String getSketchClassName() {
  return Thread.currentThread().getStackTrace()[1].getClassName();
}

public static final String[] getSketchNestedClassNames() {
  Class[] nested;

  try {
    nested = Class.forName(getSketchClassName()).getClasses();
  }
  catch (ClassNotFoundException cause) {
    throw new RuntimeException(cause);
  }

  int idx = 0, len = max(0, nested.length - 2);
  String[] classes = new String[len];

  while (idx != len)  classes[idx] = nested[idx++].getName();
  return classes;
}

public void setup() {
  size(300, 200, JAVA2D);
  noLoop();
  background(#00FFFF);
  printArray(args);
}

public static class Test extends PApplet {
  public void setup() {
    size(200, 300, JAVA2D);
    noLoop();
    background(#FFFF00);
    printArray(args);
  }
}

GoToLoop

To pass references rather than simple String args[], you need to replace main() w/ runSketch().
Using the latter, we pass a PApplet object. Therefore that PApplet can have a constructor w/ parameters!

http://forum.Processing.org/two/discussion/12319/using-papplet-runsketch-to-create-multiple-windows-in-a-ps3-sketch

/**
 * Multi-Monitor Sketch (v1.61)
 * by GoToLoop (2015/Jun/28)
 *
 * forum.processing.org/two/discussion/12483/
 * how-to-pass-arguments-in-papplet-main-method
 *
 * forum.processing.org/two/discussion/12319/
 * using-papplet-runsketch-to-create-multiple-windows-in-a-ps3-sketch
 */

void setup() {
  size(300, 300, JAVA2D);
  smooth(4);
  noLoop();
  frameRate(60);
  stroke(-1);
  strokeWeight(1.5);

  runSketch( new String[] { "--display=1",
                            "--location=0,0",
                            "--sketch-path=" + sketchPath,
                            "" },
             new ProjectorSketch() );

  println("Main's  sketchPath: \t\"" + sketchPath + "\"");
  println("Main's  dataPath: \t\"" + dataPath("") + "\"\n");
}

void draw() {
  background(0);
  line(0, 0, width, height);
}

class ProjectorSketch extends PApplet {
  void setup() {
    size(displayWidth>>1, displayHeight>>1, JAVA2D);
    smooth(4);
    frameRate(1);
    stroke(#FFFF00);
    strokeWeight(5);

    println("Inner's sketchPath: \t\"" + sketchPath("") + "\"");
    println("Inner's dataPath: \t\"" + dataPath("") + "\"\n");
  }

  void draw() {
    background((color) random(#000000));
    line(width, 0, 0, height);

    saveFrame( dataPath("screen-####.jpg") );
  }
}