hello,

sorry if this is basic, i am a newbie

I am using the SDrop library with PGraphics to make an image tile that can have an image be scaled and panned while still being in an enclosed (image dropable) tile. I have everything working but I want to turn it into a class so i can make the tiling be scale able etc. I am having problems though with the SDrop class constuctor. The examples use SDrop(this) but since I am putting it in a class it is refferencing my class not the main app. Is there a way to use something like parent instead of this?

thanks for any help and here is the class code


// a custom DropListener class.
class MyDropListener extends DropListener {
 
 int myColor;
 int x,y,w,h;
 
 MyDropListener(int tx, int ty, int tw, int th) {
   myColor = color(255);
   // set a target rect for drop event.
   setTargetRect(x,y,w,h);
   x = tx;
   y = ty;
   w = tw;
   h = th;
 }
 
 void draw() {
   fill(myColor);
   rect(x,y,w,h);
 }
 
 // if a dragged object enters the target area.
 // dropEnter is called.
 void dropEnter() {
   myColor = color(255,0,0);
 }
 
 // if a dragged object leaves the target area.
 // dropLeave is called.
 void dropLeave() {
   myColor = color(255);
 }
 
 void dropEvent(DropEvent theEvent) {
   println("Dropped on MyDropListener");
 }
}





class ImageTile{
 PGraphics pg;
 PImage b;
 import sojamo.drop.*;

 //Sdrop features
 SDrop drop;
 MyDropListener m;
 
 int pX;
 int pY;
 int pushX = 0;
 int pushY = 0;
 int scaleX, scaleY;
 int scaleStartX, scaleStartY;
 float scaleFactor = 1.0;

 ImageTile(int tx, int ty) {
   pg = createGraphics(tx, ty, P3D);
   drop = new SDrop(this);
   m = new MyDropListener();
   drop.addDropListener(m);
 }

 void display() {
   pg.beginDraw();
   pg.background(0);
   pg.pushMatrix();
   pg.translate(pushX,pushY);
   pg.scale(scaleFactor);
   if(b != null){
     pg.image(b,0,0,50,50);
   }
   else {
   }
   pg.stroke(255);
   pg.popMatrix();
   pg.endDraw();
   image(pg, 0, 0,50,50);
 }


 void dropEvent(DropEvent theDropEvent) {
   // if the dropped object is an image, then
   // load the image into our PImage.
   if(theDropEvent.isImage()) {
     println("### loading image ...");
     pg.beginDraw();
     b = theDropEvent.loadImage();
     pg.image(b,0,0);
     pg.endDraw();
   }
 }

 void mousePressed() {
   if(mouseButton == RIGHT) {
     scaleStartX = mouseX;
     scaleStartY = mouseY;
   }
 }


 void mouseDragged() {
   if(mouseButton == LEFT){
     if(mouseX > pX) {
       pushX++;
     }
     else if(mouseX < pX) {
       pushX--;
     }
     if(mouseY > pY) {
       pushY++;
     }
     else if(mouseY < pY) {
       pushY--;
     }
   }
   else if(mouseButton == RIGHT){
     if(mouseY > pY) {
       scaleFactor += 0.1;
     }
     else if(mouseY < pY) {
       scaleFactor -= 0.1;
     }
   }
   pX = mouseX;
   pY = mouseY;
 }




}

awesome dude,

thank you very much. i tried messing with PApplet but obviously didn't have it. thanks again