org.das2.graph.DasCanvas

Canvas for das2 graphics. The DasCanvas contains any number of DasCanvasComponents such as axes, plots, colorbars, etc.

DEFAULT_LAYER

Default drawing layer of the JLayeredPane

PLOT_LAYER

Z-Layer for drawing the plot.

VERTICAL_AXIS_LAYER

Z-Layer for vertical axis. Presently lower than the horizontal axis, presumably to remove ambiguity

HORIZONTAL_AXIS_LAYER

Z-Layer

AXIS_LAYER

Z-Layer

ANNOTATION_LAYER

Z-Layer

GLASS_PANE_LAYER

Z-Layer

SAVE_AS_PNG_ACTION

SAVE_AS_SVG_ACTION

SAVE_AS_PDF_ACTION

EDIT_DAS_PROPERTIES_ACTION

PRINT_ACTION

REFRESH_ACTION

ABOUT_ACTION

Override Component.setBounds for debugging.

broken

PROP_SCALEFONTS

The font used should be the base font scaled based on the canvas size. If this is false, then the canvas font is simply the base font.

PROP_BASEFONT

Property name for the base font.

PROP_PAINTCOUNT

addBottomDecorator

add a decorator that will be painted on below all other objects. Each decorator object should complete painting within 100 milliseconds, and the total for all decorators should not exceed 300 milliseconds. This should be done on the event thread.

Parameters

Returns:

addTopDecorator

add a decorator that will be painted on top of all other objects. Each decorator object should complete painting within 100 milliseconds, and the total for all decorators should not exceed 300 milliseconds. This should be done on the event thread.

Parameters

Returns:

devicePositionList

returns a list of all the rows and columns on the canvas.

Returns:

getApplication

Returns:

getBaseFont

the base font, which is the font or the font which is scaled when scaleFont is true.

Returns:

getCanvasComponentAt

Returns the DasCanvasComponent that contains the (x, y) location. If there is no component at that location, this method returns null

Parameters

Returns:

getCanvasComponents

return the component at the index.

Parameters

Returns:

getCellAt

TODO

Parameters

Returns:

getDevicePositionList

return a list of all the rows and columns.

Returns:

getFocusCanvas

return the canvas that has the focus.

Returns:

getGlassPane

returns the GlassPane above all other components. This is used for drawing dragRenderers, etc.

Returns:

getImage

Creates a BufferedImage by blocking until the image is ready. This includes waiting for datasets to load, etc. Works by submitting an invokeAfter request to the RequestProcessor that calls {@link #writeToImageImmediately(Image)}.

Parameters

Returns:

getImageMetadata

returns JSON code that can be used to get plot positions and axes.

Returns:

getImageNonPrint

Creates a BufferedImage by blocking until the image is ready. This includes waiting for datasets to load, etc. Works by submitting an invokeAfter request to the RequestProcessor that calls {@link #writeToImageImmediately(Image)}. Note, this calls writeToImageImmediatelyNonPrint, which avoids the usual overhead of revalidating the DasPlot elements we normally do when printing to a new device.

Parameters

Returns:

getLineAt

TODO

Parameters

Returns:

getPreferredScrollableViewportSize

Returns:

getPrintable

Returns an instance of java.awt.print.Printable that can be used to render this canvas to a printer. The current implementation returns a reference to this canvas. This method is provided so that in the future, the canvas can delegate it's printing to another object.

Returns:

getPrintingTag

printingTag is the DateFormat string to use to tag printed images.

Returns:

getScrollableBlockIncrement

Returns:

getScrollableTracksViewportHeight

Returns:

getScrollableTracksViewportWidth

Returns:

getScrollableUnitIncrement

Returns:

hasBottomDecorators

returns true if there are any bottom decorators.

Returns:

hasTopDecorators

returns true if there are any top decorators.

Returns:

isAntiAlias

true if data will be fully rendered with anti-aliasing.

Returns:

isFitted

If true, and the canvas was added to a scrollpane, the canvas will size itself to fit within the scrollpane.

Returns:

isScaleFonts

true if the fonts should be rescaled as the window size is changed.

Returns:

isTextAntiAlias

return true if fonts will be fully rendered.

Returns:

lisPaintingForPrint

Java1.6 has this function native

Returns:

makeCurrent

make this the current canvas

Returns:

prepareForOutput

resets the width and height, then waits for all update messages to be processed. In headless mode, the GUI components are validated. This must not be called from the event queue, because it uses eventQueueBlocker!

Parameters

Returns:

removeBottomDecorator

remove the decorator. This should be done on the event thread.

Parameters

Returns:

removeBottomDecorators

remove all bottom decorators. This should be done on the event thread.

Returns:

removeDasDevicePosition

remove the device position from the list we keep track of. Note those with parent rows and columns should not be registered (or at least existing code doesn't add it).

Parameters

Returns:

removeTopDecorator

remove the decorator. This should be done on the event thread.

Parameters

Returns:

removeTopDecorators

remove all top decorators. This should be done on the event thread.

Returns:

removepwDevicePosition

resizeAllComponents

introduced as a kludgy way for clients to force the canvas to resize all of its components. validate or revalidate should probably do this.

Returns:

setAntiAlias

true if data will be fully rendered with anti-aliasing.

Parameters

Returns:

setApplication

Returns:

setBaseFont

the base font, which is the font or the font which is scaled with canvas size when scaleFont is true.

Parameters

Returns:

setDisableActions

Returns:

setFitted

If true, and the canvas was added to a scrollpane, the canvas will size itself to fit within the scrollpane.

Parameters

Returns:

setFont

Returns:

setPreferredHeight

Sets the preferred height of the canvas to the specified height.

Parameters

Returns:

setPreferredWidth

Sets the preferred width of the canvas to the specified width.

Parameters

Returns:

setPrintingTag

printingTag is the string to use to tag printed images. This can be 'yyyymmdd (SimpleDateFormat) or $Y$m$d, or just a string.

Parameters

Returns:

setScaleFonts

true if the fonts should be rescaled as the window size is changed.

Parameters

Returns:

setTextAntiAlias

true if fonts will be fully rendered.

Parameters

Returns:

waitUntilIdle

blocks until everything is idle, including no active monitors. PRESENTLY THIS DOES NOT CHECK MONITORS!

Parameters

Returns:

waitUntilValid

process all pending operations and make sure we're repainted. See PlotCommand in Autoplot.

Returns:

writeToGraphicsOutput

write to various graphics devices such as png, pdf and svg. This handles the synchronization and parameter settings.

Parameters

Returns:

writeToImageImmediately

Writes on to the image without waiting, using the print method. The graphics context is accessed with image.getGraphics.

Parameters

Returns:

writeToImageImmediatelyNoCount

silly code so that Autoplot can get an image without incrementing paintCount.

Parameters

Returns:

writeToImageImmediatelyNonPrint

This by passes the normal print method used in writeToImageImmedately, which sets the printing flags which tell the components, like DasPlot, to fully reset. This was introduced so that Autoplot could get thumbnails and an image of the canvas for its layout tab without having to reset.

Parameters

Returns:

writeToPDF

write the canvas to a PDF file.

Parameters

Returns:

writeToPng

uses getImage to get an image of the canvas and encodes it as a png. Note this now puts in a JSON representation of plot locations in the "plotInfo" tag. The plotInfo tag will contain:

   "size:[640,480]"
   "numberOfPlots:0"   
   "plots: { ... "  where each plot contains:
   "title" "xaxis" "yaxis"
}

Parameters

Returns:

writeToSVG

Parameters

Returns: