Select image and create object. Processing 2.0 - image

Question

here is a code snippet from my Image class:
class Image{
public int width;
public int height;
public PImage img;
Image(PApplet parent){
width = 512;
height = 512;
img = new PImage();
img = parent.loadImage("test.jpg");
img.resize(width, height);
}
}
I draw it in the main file in such a way:
image(image.img, 287, 280);
I'd like to choose the image having clicked it:
void mousePressed() {
if (gui.btnOver1) {
selectInput("Choose file:", "fileSelected");
}
}
However, I don't know how to use this function in an OOP way:
void fileSelected(File selection) {
if (selection == null) {
println("Window was closed or the user hit cancel.");
} else {
img = loadImage(selection.getAbsolutePath());
img.loadPixels();
}
}
Thanks for help.

Answer 1

what about adding a method to your class like:
class Image{
public int width;
public int height;
public PImage img;
Image(PApplet parent){
width = 512;
height = 512;
img = new PImage();
img = parent.loadImage("test.jpg");
img.resize(width, height);
}
public void loadNew(path){
img = loadImage(path);
// I don't think you need to .updatePixels() after .loadImage()
}
}
Then you use it like that:
void fileSelected(File selection) {
if (selection == null) {
println("Window was closed or the user hit cancel.");
} else {
// assuming you have an 'image' object of the type Image
image.loadNew(selection.getAbsolutePath());
}
}
Note:
It's been a while since I wrote my last line of Processing code and it may be a bit wrong, but it should answer your question
You could even have a function to draw the Image object, rather than calling the property imgof your image,
like that:
// a method of your class
public void draw(int x, int y){
image(img, x, y);
}
and then inside the main draw() you will call
// always your image object here
image.draw(20, 34);
I hope it helps!