org.autoplot.pngwalk.WalkImage

A class to manage an image for the PNGWalk tool. Handles downloading and thumbnail generation.

WalkImage( java.net.URI uri, boolean haveThumbs400 )

PROP_STATUS_CHANGE

PROP_BADGE_CHANGE

THUMB_SIZE

addObserver

addObserver( org.autoplot.pngwalk.PngWalkView obs ) → void

mark this image as one which is being used.

Parameters

obs - a PngWalkView

Returns:

void (returns nothing)

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addPropertyChangeListener( java.beans.PropertyChangeListener listener ) → void [view source]

getCaption

getCaption( ) → String

the text displayed along with the image

Returns:

a String

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getDatumRange

getDatumRange( ) → DatumRange

get the time range for the image, or null if the timerange cannot be inferred.

Returns:

a DatumRange

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getImage

getImage( ) → java.awt.image.BufferedImage

return the image, or the missing image should the image be missing.

Returns:

a java.awt.image.BufferedImage

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getInitLoadBirthTime

getInitLoadBirthTime( ) → long

get the time that the image load was triggered.

Returns:

the time in millis, to be compared to System.currentTimeMillis.

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getSquishedThumbnail( ) → java.awt.image.BufferedImage [view source]
getSquishedThumbnail( boolean loadIfNeeded ) → java.awt.image.BufferedImage [view source]
getStatus( ) → org.autoplot.pngwalk.WalkImage.Status [view source]
getThumbnail( ) → java.awt.image.BufferedImage [view source]

getThumbnail

getThumbnail( int w, int h, boolean waitOk ) → java.awt.image.BufferedImage

returns the thumbnail if available, or if waitOk is true then it computes it. Otherwise PngWalkView.loadingImage is returned.

Parameters

w - width in pixels of the thumbnail image
h - height in pixels of the thumbnail image
waitOk - if true, block execution until image is ready. Otherwise a loading image might be returned.

Returns:

image or PngWalkView.loadingImage

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getThumbnail( boolean loadIfNeeded ) → java.awt.image.BufferedImage [view source]
getThumbnailDimension( boolean loadIfNeeded ) → java.awt.Dimension [view source]

getThumbnailImmediately

getThumbnailImmediately( ) → void

attempt to create the thumbnail on the current thread. If there is no "thumbs400" directory and the image is not yet loaded, then no action takes place.

Returns:

void (returns nothing)

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getUri( ) → java.net.URI [view source]

hasObservers

hasObservers( ) → boolean

true if some view can see this image's thumbnail or the image.

Returns:

a boolean

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readImage

readImage( java.io.File f ) → java.awt.image.BufferedImage

return a file, that is never type=0. This was a bug on Windows.

Parameters

f - a File

Returns:

a java.awt.image.BufferedImage

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removeObserver

removeObserver( org.autoplot.pngwalk.PngWalkView obs ) → void

remove this observer from the list of observers

Parameters

obs - a PngWalkView

Returns:

void (returns nothing)

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removePropertyChangeListener( java.beans.PropertyChangeListener listener ) → void [view source]

rotateImage

rotateImage( java.awt.image.BufferedImage img, int angle ) → java.awt.image.BufferedImage

rotate an image, unlike the rotate found in ImageDataSource, this will resize the image when the rotation is 90 degrees.

Parameters

img - the image
angle - the angle to rotate clockwise, in degrees.

Returns:

the rotated image.

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setCaption( String caption ) → void [view source]
setDatumRange( DatumRange dr ) → void [view source]
toString( ) → String [view source]

waitForImage

waitForImage( ) → java.awt.image.BufferedImage

contain logic which will wait for the image to load.

Returns:

the image, or missingImage.

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