Package eu.webtoolkit.jwt.chart

Class CurveLabel

java.lang.Object
eu.webtoolkit.jwt.chart.CurveLabel
public class CurveLabel
extends java.lang.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, java.lang.String label)
    Create a new curve label.
    CurveLabel​(WDataSeries series, java.lang.Object x, java.lang.Object y, java.lang.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.
    java.lang.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.
    java.lang.Object getX()
    Get the x position for this label.
    java.lang.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​(java.lang.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​(java.lang.Object x, java.lang.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, java.lang.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, java.lang.Object x, java.lang.Object y, java.lang.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​(java.lang.Object x, java.lang.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 java.lang.Object getX()
      Get the x position for this label.

      See Also:
      setPoint(WPointF point)

    • getY

      public java.lang.Object getY()
      Get the y position for this label.

      See Also:
      setPoint(WPointF point)

    • setLabel

      public void setLabel​(java.lang.String label)
      Set the label that should be drawn in the box.

    • getLabel

      public java.lang.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)