org.eclipse.scada.ui.chart.viewer.input

Interface ChartInput

All Superinterfaces:

SeriesInformation

All Known Implementing Classes:

AbstractInput, ArchiveChannelInput, ArchiveInput, CompositeQualityInput, ItemObserver, LineInput, QueryInput, ScriptInput

public interface ChartInput
extends SeriesInformation

Field Summary

Fields

Modifier and Type	Field and Description
static String	PROP_PREVIEW
static String	PROP_STATE

Fields inherited from interface org.eclipse.scada.chart.swt.render.legend.SeriesInformation

PROP_COLOR, PROP_LABEL, PROP_SELECTED_QUALITY, PROP_SELECTED_TIMESTAMP, PROP_SELECTED_VALUE, PROP_VISIBLE

Method Summary

Modifier and Type	Method and Description
void	dispose()
Object	getPreview()
org.eclipse.swt.graphics.Image	getPreview(int width, int height) Get rendered preview
String	getState()
boolean	isVisible()
void	setSelection(boolean state)
void	setSelection(Calendar date)
void	setVisible(boolean state)
boolean	tick(long now)

Methods inherited from interface org.eclipse.scada.chart.swt.render.legend.SeriesInformation

getColor, getLabel, getSelectedQuality, getSelectedTimestamp, getSelectedValue

Field Detail

PROP_STATE

static final String PROP_STATE

See Also:

Constant Field Values

PROP_PREVIEW

static final String PROP_PREVIEW

See Also:

Constant Field Values

Method Detail

setSelection

void setSelection(boolean state)

dispose

void dispose()

tick

boolean tick(long now)

setVisible

void setVisible(boolean state)

isVisible

boolean isVisible()

Specified by:

isVisible in interface SeriesInformation

getState

String getState()

setSelection

void setSelection(Calendar date)

getPreview

org.eclipse.swt.graphics.Image getPreview(int width,
                                          int height)

Get rendered preview

The chart input implementation must dispose the created image. If the implementation cannot create the image for the requested size it must return null.

Parameters:

width - the requested width

height - the requested height

Returns:

the rendered preview or null

getPreview

Object getPreview()