ccd
Class JCamera.ExposeThread

java.lang.Object
  java.lang.Thread
      ccd.JCamera.ExposeThread

All Implemented Interfaces:

Runnable

Enclosing class:

JCamera

protected class JCamera.ExposeThread
extends Thread

The exposure thread repeadetly calls the ccd's CcdDriver.expose() method until stopped or until the predefined number of exposures is reached. Whenever a new exposure finished, signaled by a return of the CcdDriver.expose() method, a JCamera.DisplayThread is notified to retrieve the data.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

private boolean	cancel If true, we cancel exposure taking.
private int	count The number of images to take.
private nom.tam.fits.Fits	current The fits currently retrieved.
private JCamera.DisplayThread	display The display thread linked to the read-out thread.

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

protected

JCamera.ExposeThread(int maxexposures) Constructs a new, non auto-starting exposure thread.

Method Summary

protected nom.tam.fits.Fits	getCurrentFits() Retrieves the last CCD exposure name.
void	run() Runs the exposure.
protected void	setCancel(boolean yes) Sets the cancel flag.
protected void	setDisplayThread(JCamera.DisplayThread show) We hand over a handle to the image thread to let the exposure thread yell if the network retrieval of the fits is too slow.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

display

private JCamera.DisplayThread display

The display thread linked to the read-out thread.

count

private int count

The number of images to take. Zero means run forever.

current

private nom.tam.fits.Fits current

The fits currently retrieved.

cancel

private boolean cancel

If true, we cancel exposure taking.

Constructor Detail

JCamera.ExposeThread

protected JCamera.ExposeThread(int maxexposures)

Constructs a new, non auto-starting exposure thread. The connection is established, if not already up. The record and play icons of the enclosing class are disabled. The binning and exposure time as well as the read-out window is queried from the enclosing class.

Method Detail

setDisplayThread

protected void setDisplayThread(JCamera.DisplayThread show)

We hand over a handle to the image thread to let the exposure thread yell if the network retrieval of the fits is too slow.

run

public void run()

Runs the exposure. Whenever the CcdDriver.expose() method returns, we notify the main class.

Specified by:

run in interface Runnable

Overrides:

run in class Thread

setCancel

protected void setCancel(boolean yes)

Sets the cancel flag.

getCurrentFits

protected nom.tam.fits.Fits getCurrentFits()

Retrieves the last CCD exposure name.