Package eu.webtoolkit.jwt.chart

Class CurveLabel

java.lang.Object

eu.webtoolkit.jwt.chart.CurveLabel

public class CurveLabel
extends Object

A curve label.

Curve labels can be added with WCartesianChart#addCurveLabel(). They are associated with a particular series, and are drawn at the given point in model coordinates. When the chart is transformed (zoom or pan) or the associated series is manipulated, the curve label's position will change, but not its size.

A curve label

Constructor Summary

Constructors

Constructor	Description
CurveLabel(WDataSeries series, WPointF point, String label)	Create a new curve label.
CurveLabel(WDataSeries series, Object x, Object y, String label)	Create a new curve label.

Method Summary

Modifier and Type	Method	Description
WBrush	getBoxBrush()	Get the brush to use for the box around the text.
String	getLabel()	Get the label that should be drawn in the box.
WPen	getLinePen()	Get the pen to use for the connecting line.
WBrush	getMarkerBrush()	Get the brush used to fill the circle at getPoint().
WPointF	getOffset()	Get the offset the text should be placed at.
WPointF	getPoint()	Get the point in model coordinates this label is associated with.
WDataSeries	getSeries()	Get the series this curve label is associated with.
WPen	getTextPen()	Get the pen for the text in the box.
int	getWidth()	Get the width of the box in pixels.
Object	getX()	Get the x position for this label.
Object	getY()	Get the y position for this label.
void	render(WPainter painter)
void	setBoxBrush(WBrush brush)	Set the brush to use for the box around the text.
void	setLabel(String label)	Set the label that should be drawn in the box.
void	setLinePen(WPen pen)	Set the pen to use for the connecting line.
void	setMarkerBrush(WBrush brush)	Set the brush used to fill the circle at getPoint().
void	setOffset(WPointF offset)	Set the offset the text should be placed at.
void	setPoint(WPointF point)	Set the point in model coordinates this label is associated with.
void	setPoint(Object x, Object y)	Set the point in model coordinates this label is associated with.
void	setSeries(WDataSeries series)	Set the series this curve label is associated with.
void	setTextPen(WPen pen)	Set the pen for the text in the box.
void	setWidth(int width)	Set the width of the box in pixels.

Methods inherited from class java.lang.Object

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

Constructor Details

CurveLabel

public CurveLabel(WDataSeries series,
 WPointF point,
 String label)

Create a new curve label.

Create a new curve label for given series, at the given point with the given text.

CurveLabel

public CurveLabel(WDataSeries series,
 Object x,
 Object y,
 String label)

Create a new curve label.

Create a new curve label for given series, at the given x, y coordinates and the given text.

Method Details

setSeries

public void setSeries(WDataSeries series)

Set the series this curve label is associated with.

getSeries

public WDataSeries getSeries()

Get the series this curve label is associated with.

See Also:

• setSeries(WDataSeries series)

setPoint

public void setPoint(WPointF point)

Set the point in model coordinates this label is associated with.

setPoint

public void setPoint(Object x,
 Object y)

Set the point in model coordinates this label is associated with.

getPoint

public WPointF getPoint()

Get the point in model coordinates this label is associated with.

Note: This uses asNumber(), which may not be the same conversion that WCartesianChart#mapToDevice() uses, depending on the scale of the axis. getX() and getY() will perform no conversion, so they may be safer to use.

See Also:

• setPoint(WPointF point)

getX

public Object getX()

Get the x position for this label.

See Also:

• setPoint(WPointF point)

getY

public Object getY()

Get the y position for this label.

See Also:

• setPoint(WPointF point)

setLabel

public void setLabel(String label)

Set the label that should be drawn in the box.

getLabel

public String getLabel()

Get the label that should be drawn in the box.

See Also:

• setLabel(String label)

setOffset

public void setOffset(WPointF offset)

Set the offset the text should be placed at.

The offset is defined in pixels, with x values going from left to right, and y values from top to bottom.

The default offset is (60, -20), which means the middle of the getLabel() is drawn 60 pixels to the right, and 20 pixels above the point.

getOffset

public WPointF getOffset()

Get the offset the text should be placed at.

See Also:

• setOffset(WPointF offset)

setWidth

public void setWidth(int width)

Set the width of the box in pixels.

If the width is 0 (the default), server side font metrics will be used to determine the size of the box.

getWidth

public int getWidth()

Get the width of the box in pixels.

See Also:

• setWidth(int width)

setLinePen

public void setLinePen(WPen pen)

Set the pen to use for the connecting line.

This sets the pen to use for the line connecting the getPoint() to the box with the getLabel() at getOffset() pixels from the point.

getLinePen

public WPen getLinePen()

Get the pen to use for the connecting line.

See Also:

• setLinePen(WPen pen)

setTextPen

public void setTextPen(WPen pen)

Set the pen for the text in the box.

getTextPen

public WPen getTextPen()

Get the pen for the text in the box.

See Also:

• setTextPen(WPen pen)

setBoxBrush

public void setBoxBrush(WBrush brush)

Set the brush to use for the box around the text.

This sets the brush used to fill the box with the text defined in getLabel().

getBoxBrush

public WBrush getBoxBrush()

Get the brush to use for the box around the text.

See Also:

• setBoxBrush(WBrush brush)

setMarkerBrush

public void setMarkerBrush(WBrush brush)

Set the brush used to fill the circle at getPoint().

getMarkerBrush

public WBrush getMarkerBrush()

Get the brush used to fill the circle at getPoint().

See Also:

• setMarkerBrush(WBrush brush)

render

public void render(WPainter painter)