Examples of edu.cmu.cs.stage3.image.codec.StreamSegmentMapper

edu.cmu.cs.stage3.alice.authoringtool.event.AuthoringToolStateChangedEvent
An interface for use with the SegmentedSeekableStream class. An instance of the StreamSegmentMapper interface provides the location and length of a segment of a source SeekableStream corresponding to the initial portion of a desired segment of the output stream.
As an example, consider a mapping between a source SeekableStream src and a SegmentedSeekableStream dst comprising bytes 100-149 and 200-249 of the source stream. The dst stream has a reference to an instance mapper of StreamSegmentMapper.
A call to dst.seek(0); dst.read(buf, 0, 10) will result in a call to mapper.getStreamSegment(0, 10), returning a new StreamSegment with a starting position of 100 and a length of 10 (or less). This indicates that in order to read bytes 0-9 of the segmented stream, bytes 100-109 of the source stream should be read.
A call to dst.seek(10); int nbytes = dst.read(buf, 0, 100) is somewhat more complex, since it will require data from both segments of src. The method mapper.getStreamSegment(10, 100) will be called. This method will return a new StreamSegment with a starting position of 110 and a length of 40 (or less). The length is limited to 40 since a longer value would result in a read past the end of the first segment. The read will stop after the first 40 bytes and an addition read or reads will be required to obtain the data contained in the second segment.
This interface is not a committed part of the JAI API. It may be removed or changed in future releases of JAI.

  public void removeAuthoringToolStateListener(edu.cmu.cs.stage3.alice.authoringtool.event.AuthoringToolStateListener listener) {
    stateListeners.remove(listener);
  }


  protected void fireStateChanging(int previousState, int currentState) {
    AuthoringToolStateChangedEvent ev = new AuthoringToolStateChangedEvent(previousState, currentState, world);
    for (java.util.Iterator iter = stateListeners.iterator(); iter.hasNext();) {
      AuthoringToolStateListener listener = (AuthoringToolStateListener) iter.next();
      try {
        listener.stateChanging(ev);
      } catch (Throwable t) {

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      }
    }
  }


  protected void fireWorldLoading(edu.cmu.cs.stage3.alice.core.World world) {
    AuthoringToolStateChangedEvent ev = new AuthoringToolStateChangedEvent(AuthoringToolStateChangedEvent.AUTHORING_STATE, AuthoringToolStateChangedEvent.AUTHORING_STATE, world);
    for (java.util.Iterator iter = stateListeners.iterator(); iter.hasNext();) {
      AuthoringToolStateListener listener = (AuthoringToolStateListener) iter.next();
      try {
        listener.worldLoading(ev);
      } catch (Throwable t) {

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      }
    }
  }


  protected void fireWorldUnLoading(edu.cmu.cs.stage3.alice.core.World world) {
    AuthoringToolStateChangedEvent ev = new AuthoringToolStateChangedEvent(AuthoringToolStateChangedEvent.AUTHORING_STATE, AuthoringToolStateChangedEvent.AUTHORING_STATE, world);
    for (java.util.Iterator iter = stateListeners.iterator(); iter.hasNext();) {
      AuthoringToolStateListener listener = (AuthoringToolStateListener) iter.next();
      try {
        listener.worldUnLoading(ev);
      } catch (Throwable t) {

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      }
    }
  }


  protected void fireWorldStarting(int previousState, int currentState, edu.cmu.cs.stage3.alice.core.World world) {
    AuthoringToolStateChangedEvent ev = new AuthoringToolStateChangedEvent(previousState, currentState, world);
    for (java.util.Iterator iter = stateListeners.iterator(); iter.hasNext();) {
      AuthoringToolStateListener listener = (AuthoringToolStateListener) iter.next();
      try {
        listener.worldStarting(ev);
      } catch (Throwable t) {

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      }
    }
  }


  protected void fireWorldStopping(int previousState, int currentState, edu.cmu.cs.stage3.alice.core.World world) {
    AuthoringToolStateChangedEvent ev = new AuthoringToolStateChangedEvent(previousState, currentState, world);
    for (java.util.Iterator iter = stateListeners.iterator(); iter.hasNext();) {
      AuthoringToolStateListener listener = (AuthoringToolStateListener) iter.next();
      try {
        listener.worldStopping(ev);
      } catch (Throwable t) {

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      }
    }
  }


  protected void fireWorldPausing(int previousState, int currentState, edu.cmu.cs.stage3.alice.core.World world) {
    AuthoringToolStateChangedEvent ev = new AuthoringToolStateChangedEvent(previousState, currentState, world);
    for (java.util.Iterator iter = stateListeners.iterator(); iter.hasNext();) {
      AuthoringToolStateListener listener = (AuthoringToolStateListener) iter.next();
      try {
        listener.worldPausing(ev);
      } catch (Throwable t) {

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      }
    }
  }


  protected void fireWorldSaving(edu.cmu.cs.stage3.alice.core.World world) {
    AuthoringToolStateChangedEvent ev = new AuthoringToolStateChangedEvent(AuthoringToolStateChangedEvent.AUTHORING_STATE, AuthoringToolStateChangedEvent.AUTHORING_STATE, world);
    for (java.util.Iterator iter = stateListeners.iterator(); iter.hasNext();) {
      AuthoringToolStateListener listener = (AuthoringToolStateListener) iter.next();
      try {
        listener.worldSaving(ev);
      } catch (Throwable t) {

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      }
    }
  }


  protected void fireStateChanged(int previousState, int currentState) {
    AuthoringToolStateChangedEvent ev = new AuthoringToolStateChangedEvent(previousState, currentState, world);
    for (java.util.Iterator iter = stateListeners.iterator(); iter.hasNext();) {
      AuthoringToolStateListener listener = (AuthoringToolStateListener) iter.next();
      try {
        listener.stateChanged(ev);
      } catch (Throwable t) {

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      }
    }
  }


  protected void fireWorldLoaded(edu.cmu.cs.stage3.alice.core.World world) {
    AuthoringToolStateChangedEvent ev = new AuthoringToolStateChangedEvent(AuthoringToolStateChangedEvent.AUTHORING_STATE, AuthoringToolStateChangedEvent.AUTHORING_STATE, world);
    for (java.util.Iterator iter = stateListeners.iterator(); iter.hasNext();) {
      AuthoringToolStateListener listener = (AuthoringToolStateListener) iter.next();
      try {
        listener.worldLoaded(ev);
      } catch (Throwable t) {

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      }
    }
  }


  protected void fireWorldUnLoaded(edu.cmu.cs.stage3.alice.core.World world) {
    AuthoringToolStateChangedEvent ev = new AuthoringToolStateChangedEvent(AuthoringToolStateChangedEvent.AUTHORING_STATE, AuthoringToolStateChangedEvent.AUTHORING_STATE, world);
    for (java.util.Iterator iter = stateListeners.iterator(); iter.hasNext();) {
      AuthoringToolStateListener listener = (AuthoringToolStateListener) iter.next();
      try {
        listener.worldUnLoaded(ev);
      } catch (Throwable t) {

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