Processing 1.0 - Processing Discourse - using interfaces in processing

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using interfaces in processing (Read 493 times)

disablek

using interfaces in processing
Jan 30^th, 2008, 5:23pm

Code:

  
interface test{
  void testify();
  //void testify(Porky p);  // Why!?!? <------
  void testify(String k);
}
class Porky implements test{
 Porky(){};
 void testify(Fudd p){
   println("Fudd says "+p.say()); 
 }
 void testify(){
   
 }
 void testify(String p){
  println("string "+p); 
   
 }
}

class Fudd{
 Fudd(){}
 String say(){
  return "that's all folks";
 } 
}

Fudd k;
Porky p;
void setup(){
  k=new Fudd();
  p=new Porky();
}

void draw(){
  p.testify(k);
}

I'm sorry if this has been covered before, but why can't i define a function signature in the interface that requires a class that is defined in the current sketch?

JohnG Ex Member	Re: using interfaces in processing Reply #1 - Jan 30^th, 2008, 6:45pm Because processing wraps everything into an inner class I believe. There is a way round it though, change the interface function definition to take an Object, and then cast it inside the function.

davbol Senior Member Offline Posts: 263	Re: using interfaces in processing Reply #2 - Jan 30^th, 2008, 8:42pm As per JohnG, but another work around is by adding native .java tabs to your sketch and putting your classes/interfaces in those instead of in a .pde tab. (you'll additionally want to specify public access where necessary, and probably pass a reference to the PApplet in the constructor)

disablek YaBB Newbies Offline Posts: 48	Re: using interfaces in processing Reply #3 - Jan 31^st, 2008, 3:28am Thanks guys!

disablek

Re: using interfaces in processing
Reply #4 - Jan 31^st, 2008, 10:54am

Ok so i reorganised this to

a.pde
Code:


class Fudd{
 Fudd(){}
 String say(){
  return "that's all folks";
 } 
  void setThis(test e){
   //e.testify("borgoborg"); 
   //((Porky)e).oink();
  }

}

Fudd k;
Porky p;
void setup(){
  k=new Fudd();
  p=new Porky();
}

void draw(){
  
 // p.testify(k);
  k.setThis(p);
}

and porky.java

Code:


public interface test{
  void testify();
  void testify(Object asd);
  void testify(String zxc);
}

public class Porky implements test{
 Porky(){};
 void testify(Object qwer){
   println("Fudd says "+((Fudd)qwer).say()); 
 }
 void testify(){
   
 }
 void testify(String qwert){
  println("string "+qwert); 
   
 }
  void oink(){
   println("oink"); 
  }
}

And that doesn't quite work.

disablek YaBB Newbies Offline Posts: 48	Re: using interfaces in processing Reply #5 - Jan 31^st, 2008, 11:04am Ok besides some silly package things, changing the functions in the java file to public access seems to work.

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