package socket01;

public class camera
{
   private final String _raspistillPath = "/opt/vc/bin/raspistill";
   private final int _picTimeout = 5000;
   // Define the image quality.
   private final int _picQuality = 100;

   private int _picWidth = 1024;
   private int _picHeight = 768;
   private String _picName = "example.jpg";
   private String _picType = "jpg";

   // Default class constructor.
   public void RaspiStill()
   {
      // Do anything else here. For example, you could create another
      // constructor which accepts an alternate path to raspistill,
      // or defines global parameters like the image quality.
   }

  
   public void TakePicture()
   {
      try
      {
         // Determine the image type based on the file extension (or use the default).
         if (_picName.indexOf('.')!=-1) _picType = _picName.substring(_picName.lastIndexOf('.')+1);

         // Create a new string builder with the path to raspistill.
         StringBuilder sb = new StringBuilder(_raspistillPath);

         // Add parameters for no preview and burst mode.
         sb.append(" -n -bm");
         // Configure the camera timeout.
         sb.append(" -t " + _picTimeout);
         // Configure the picture width.
         sb.append(" -w " + _picWidth);
         // Configure the picture height.
         sb.append(" -h " + _picHeight);
         // Configure the picture quality.
         sb.append(" -q " + _picQuality);
         // Specify the image type.
         sb.append(" -e " + _picType);
         // Specify the name of the image.
         sb.append(" -o " + _picName);

         // Invoke raspistill to take the photo.
         Runtime.getRuntime().exec(sb.toString());
         // Pause to allow the camera time to take the photo.
         Thread.sleep(_picTimeout);
      }
      catch (Exception e)
      {
         // Exit the application with the exception's hash code.
         System.exit(e.hashCode());
      }
   }

   // Overloaded method to take a photo using specific values for the name/width/height.
   public void TakePicture(String name, int width, int height)
   {
      _picName = name;
      _picWidth = width;
      _picHeight = height;
      TakePicture();
   }

   // Overloaded method to take a photo using a specific value for the image name.
   public void TakePicture(String name)
   {
      TakePicture(name, _picWidth, _picHeight);
   }

   // Overloaded method to take a photo using specific values for width/height.
   public void TakePicture(int width, int height)
   {
      TakePicture(_picName, width, height);
   }
}