Open Files

philspitler

I'm using the code from this example to open a file.

https://www.processing.org/reference/selectInput_.html

The issue I am having is that the code in my Setup and Draw function is starting to execute before I select a file.

I need my sketch to wait until I choose a file then proceed.

Any ideas?

Thanks.

Phil

    void setup() {
      selectInput("Select a file to process:", "fileSelected");

      size(img.width, img.height);


    }

    void draw() {  



    }




    void fileSelected(File file) {
      if (file == null) {
        println("Window was closed or the user hit cancel.");
      } else {
        println("User selected " + file.getAbsolutePath());
        img = loadImage(file.getPath());  // Load the image into the program  


      }
    }

GoToLoop

• http://forum.processing.org/two/discussion/7035/selectinput-hidden-behind-fullscreen-processing
• http://forum.processing.org/two/discussion/6842/user-selected-images-at-setup-and-during-draw
• http://forum.processing.org/two/discussion/2444/selectinput-in-a-class-in-eclipse-callback-not-found

philspitler

I tried your code and I get a NULL pointer exception on this line :

image(myMovie, 0, 0, 600, 400);

Below is my code..

Any ideas?

Thanks.

Phil

import javax.swing.*; 
import processing.video.*;
import com.heroicrobot.dropbit.registry.*;
import com.heroicrobot.dropbit.devices.pixelpusher.Pixel;
import com.heroicrobot.dropbit.devices.pixelpusher.Strip;
import java.util.*;
boolean fileSelected;
String path;

int stride = 78;

Movie myMovie;
DeviceRegistry registry;
PusherObserver observer;

void setup() {
  size(600,400);
  registry = new DeviceRegistry();
  observer = new PusherObserver();
  registry.addObserver(observer);
  registry.setAntiLog(true);

selectMovie();



  if (fileSelected) {
    myMovie = new Movie(this, path);
    myMovie.loop();
  }
}

void draw() {

  if (fileSelected) {
  image(myMovie, 0, 0, 600, 400);
scrape();
  }
}

void movieEvent(Movie m) {
  m.read();
}




void selectMovie()
{
  selectInput("Select a movie to play:", "fileSelected");
}





void fileSelected(File selection) 
{
  if (selection != null) 
  {
    path = selection.getAbsolutePath();
    fileSelected = true;
    println("User selected " + path);
  }
}

GoToLoop

I believe you still hadn't realized that selectInput() doesn't block. Program goes on w/o waiting for it to finish!
You gotta keep checking whether it was successful all the time, unfortunately. /:)

praveent27

void setup() { selectInput("Select a file to process:", "fileSelected");

size(img.width, img.height);

}

void draw() {

}

void fileSelected(File file) { if (file == null) { println("Window was closed or the user hit cancel."); } else { println("User selected " + file.getAbsolutePath()); img = loadImage(file.getPath()); // Load the image into the program

} }

Can i get an alternate to select input, i have to specify the path in the location itself anf call back it.

koogs

please don't bump threads from 2014.

if the above answers don't already solve your problem then start a new thread. and format your code nicely by selecting it and pressing ctrl-o