Spectrogram
Class SpectrogramDisplay

java.lang.Object
  Layout.PamFramePlots
      userDisplay.UserFramePlots
          Spectrogram.SpectrogramDisplay

All Implemented Interfaces:

EventListener, InternalFrameListener, DisplayPanelContainer, PamObserver

public class SpectrogramDisplay
extends UserFramePlots
implements PamObserver, InternalFrameListener, DisplayPanelContainer

Field Summary

Fields inherited from class userDisplay.UserFramePlots

FRAME_TYPE_RADAR, FRAME_TYPE_SPECTROGRAM, userDisplayControl

Fields inherited from interface Layout.DisplayPanelContainer

DRAW_BORDER

Constructor Summary

SpectrogramDisplay(UserDisplayControl userDisplayControl, SpectrogramParameters spectrogramParameters)

Method Summary

void	createAllImages()
double	getCurrentXPixel() current pixel (need not be integer !
long	getCurrentXTime() get the time at the cursor in milliseconds
int	getFrameType()
int	getImageHeight()
int	getImageWidth() Width of the bitmap thats beeing drawn on - not the number of pixels, though these may often be the same.
String	getName()
String	getObserverName()
long	getRequiredDataHistory(PamObservable o, Object arg) Required data history depends on what's happening with the mouse.
FFTDataBlock	getSourceFFTDataBlock()
PamRawDataBlock	getSourceRawDataBlock()
SpectrogramParameters	getSpectrogramParameters()
double	getXDuration() get the display duration in milliseconds
void	internalFrameClosing(InternalFrameEvent e)
void	masterClockUpdate(long milliSeconds, long sampleNumber)
void	noteNewSettings()
void	notifyModelChanged(int changeType)
void	PamToStart()
void	panelNotify(int noteType) notification from a display panel that it's necessary to perform some action - such as redrawing axis.
void	removeObservable(PamObservable o) called when an Observable (PamDataBlock) is removed from the system
void	repaintAll()
void	setParams(SpectrogramParameters newParameters)
void	setSampleRate(float sampleRate, boolean notify) New sample rate
void	setSettings()
void	update(PamObservable obs, PamDataUnit newData) Informs the PamObserver that new data have been added to the Observable class

Methods inherited from class userDisplay.UserFramePlots

getUserFrameParameters, internalFrameActivated, internalFrameClosed, internalFrameDeactivated, internalFrameDeiconified, internalFrameIconified, internalFrameOpened, setUserFrameParameters

Methods inherited from class Layout.PamFramePlots

getAxisPanel, getEastPanel, getFrame, getNorthPanel, getPlotPanel, getSouthPanel, getWestPanel, repaint, repaint, setAxisPanel, setEastPanel, setFrame, setNorthPanel, setPlotPanel, setSouthPanel, setWestPanel

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.swing.event.InternalFrameListener

internalFrameActivated, internalFrameClosed, internalFrameDeactivated, internalFrameDeiconified, internalFrameIconified, internalFrameOpened

Constructor Detail

SpectrogramDisplay

public SpectrogramDisplay(UserDisplayControl userDisplayControl,
                          SpectrogramParameters spectrogramParameters)

Method Detail

getName

public String getName()

Overrides:

getName in class UserFramePlots

setParams

public void setParams(SpectrogramParameters newParameters)

repaintAll

public void repaintAll()

getImageWidth

public int getImageWidth()

Width of the bitmap thats beeing drawn on - not the number of pixels, though these may often be the same.

Returns:

the width of the image in pixels

getImageHeight

public int getImageHeight()

createAllImages

public void createAllImages()

setSampleRate

public void setSampleRate(float sampleRate,
                          boolean notify)

Description copied from interface: PamObserver

New sample rate

Specified by:

setSampleRate in interface PamObserver

notify - Notify other PamObservers and PamObservables in the chain.

masterClockUpdate

public void masterClockUpdate(long milliSeconds,
                              long sampleNumber)

Specified by:

masterClockUpdate in interface PamObserver

PamToStart

public void PamToStart()

getRequiredDataHistory

public long getRequiredDataHistory(PamObservable o,
                                   Object arg)

Required data history depends on what's happening with the mouse. If the mouse is doing nothing and there are no SpectrogramMarkObservers then no data needs to be stored for drawing the spectrogram. If there are mark observers and the mouse is up, then make sure that at least one screen full of data is always in memory (both FFT data and Raw wave data). If the mouse is down, then keep the maximum of either one screen full of from whenever the mouse was pressed - the use may hold it down for a long time !

Specified by:

getRequiredDataHistory in interface PamObserver

Parameters:

o - PamObservable class requiring the data

arg - optional argument from PamObservable

Returns:

time in milliseconds requried by data held in PamObservable

See Also:

SpectrogramMarkObserver

getObserverName

public String getObserverName()

Specified by:

getObserverName in interface PamObserver

update

public void update(PamObservable obs,
                   PamDataUnit newData)

Description copied from interface: PamObserver

Informs the PamObserver that new data have been added to the Observable class

Specified by:

update in interface PamObserver

Parameters:

obs - Reference to the Observable (a PamDataBlock)

newData - Reference to the new PamDataUnit

setSettings

public void setSettings()

getSpectrogramParameters

public SpectrogramParameters getSpectrogramParameters()

notifyModelChanged

public void notifyModelChanged(int changeType)

Specified by:

notifyModelChanged in class UserFramePlots

internalFrameClosing

public void internalFrameClosing(InternalFrameEvent e)

Specified by:

internalFrameClosing in interface InternalFrameListener

Overrides:

internalFrameClosing in class UserFramePlots

noteNewSettings

public void noteNewSettings()

Specified by:

noteNewSettings in interface PamObserver

removeObservable

public void removeObservable(PamObservable o)

Description copied from interface: PamObserver

called when an Observable (PamDataBlock) is removed from the system

Specified by:

removeObservable in interface PamObserver

getCurrentXPixel

public double getCurrentXPixel()

Description copied from interface: DisplayPanelContainer

current pixel (need not be integer !

Specified by:

getCurrentXPixel in interface DisplayPanelContainer

getCurrentXTime

public long getCurrentXTime()

Description copied from interface: DisplayPanelContainer

get the time at the cursor in milliseconds

Specified by:

getCurrentXTime in interface DisplayPanelContainer

getXDuration

public double getXDuration()

Description copied from interface: DisplayPanelContainer

get the display duration in milliseconds

Specified by:

getXDuration in interface DisplayPanelContainer

panelNotify

public void panelNotify(int noteType)

Description copied from interface: DisplayPanelContainer

notification from a display panel that it's necessary to perform some action - such as redrawing axis.

Specified by:

panelNotify in interface DisplayPanelContainer

getFrameType

public int getFrameType()

Specified by:

getFrameType in class UserFramePlots

getSourceFFTDataBlock

public FFTDataBlock getSourceFFTDataBlock()

getSourceRawDataBlock

public PamRawDataBlock getSourceRawDataBlock()