com.imsl.chart
Class DrawPick

java.lang.Object
  com.imsl.chart.Draw
      com.imsl.chart.DrawPick

public class DrawPick
extends Draw

The DrawPick class.

Field Summary

Fields inherited from class com.imsl.chart.Draw

currentType, ERROR_BAR, FILL, fillColor, fillOutlineColor, fillOutlineType, fillPaint, fillType, graphics, haveErrorBarProperties, haveFillProperties, haveImageProperties, haveLineProperties, haveMarkerProperties, haveTextProperties, IMAGE, imageObserver, LAST, LINE, lineColor, lineDashPattern, lineWidth, MARKER, MARKER_SCALE, markerColor, markerDashPattern, markerSize, markerThickness, markerType, node, NONE, outline, path, RADIAN, scaleFont, TEXT, textAngle, textColor, textFont

Constructor Summary

DrawPick(MouseEvent event, Graphics graphics, Dimension bounds)
Contructs a DrawPick object.

Method Summary

void	drawArc(int x, int y, int width, int height, int startAngle, int arcAngle) Draw an arc.
void	drawErrorBar(int x0, int y0, int x1, int y1, int flag) Draw ErrorBar
void	drawImage(Image image, int x, int y) Draw Image
void	drawLine(int x0, int y0, int x1, int y1) Draw a line from (x0,y0) to (x1,y1).
void	drawMarker(int x, int y) Draw a marker.
Dimension	drawText(Text text, int x, int y) Draws a text object.
void	endErrorBar() End ErrorBar
void	endFill() End fill
void	endImage() End Image
void	endLine() Finish drawing lines.
void	endMarker() Finish drawing markers.
void	endText() End Text
void	fillArc(int x, int y, int width, int height, int startAngle, int arcAngle) Fills a circular or elliptical arc covering the specified rectangle.
void	fillPolygon(int[] xpoints, int[] ypoints, int npoints) Fill a polygon.
void	fillPolygon(Polygon polygon) Fill a polygon defined by a Polygon object.
void	fillRectangle(int x, int y, int width, int height) Fill a rectangle.
void	fire() Fires the pickListeners for all of the picked nodes.
int	getTolerance() Get the minimum distance that an event can be from a point or a line and still be considered a hit.
protected void	pickNode() Register the currentNode as the "picked" node if the "PickListener" attribute is defined for the current node.
void	setNode(ChartNode node) Set the current ChartNode.
void	setTolerance(int tolerance) Set the minimum distance that an event can be from a point or a line and still be considered a hit.
void	startErrorBar() Start ErrorBar
void	startFill() Fill
void	startImage() Start Image
void	startLine() Start drawing lines.
void	startMarker() Start drawing markers.
void	startText() Start drawing text
void	translate(int x, int y) Translates the origin to the point (x,y)

Methods inherited from class com.imsl.chart.Draw

check, drawRotatedText, drawText, drawText, getClipBounds, getDeviceMarkerSize, getScaleFont, getSize, setClip, setScaleFont, start, stop

Methods inherited from class java.lang.Object

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

Constructor Detail

DrawPick

public DrawPick(MouseEvent event,
                Graphics graphics,
                Dimension bounds)

Contructs a DrawPick object.

Parameters:

event - is a MouseEvent

graphics - is the graphics context in which to draw.

bounds - is the size of the chart to be drawn.

Method Detail

drawArc

public void drawArc(int x,
                    int y,
                    int width,
                    int height,
                    int startAngle,
                    int arcAngle)

Draw an arc.

Overrides:

drawArc in class Draw

Parameters:

x - An int which specifies the x of the rectangle origin, (x,y). The center of the arc is the center of this rectangle.

y - An int which specifies the y of the rectangle origin, (x,y). The center of the arc is the center of this rectangle.

width - An int which specifies the width of the rectangle.

height - An int which specifies the height of the rectangle.

startAngle - An int which specifies the start angle in degrees. startAngle = 0 is equivalent to the 3-o'clock position.

arcAngle - An int which specifies the arcAngle. drawArc draws the arc from startAngle to startAngle+arcAngle. A positive arcAngle indicates a counter-clockwise rotation. A negative arcAngle implies a clockwise rotation.

drawErrorBar

public void drawErrorBar(int x0,
                         int y0,
                         int x1,
                         int y1,
                         int flag)

Draw ErrorBar

Overrides:

drawErrorBar in class Draw

Parameters:

x0 - an int which specifies the x-coordinate of the beginning reference point

y0 - an int which specifies the y-coordinate of the beginning reference point

x1 - an int which specifies the x-coordinate of the ending reference point

y1 - an int which specifies the y-coordinate of the ending reference point

flag - an int that indicates which caps to draw (0=none, 1=bottom, 2=top, 3=both).

drawImage

public void drawImage(Image image,
                      int x,
                      int y)

Draw Image

Overrides:

drawImage in class Draw

Parameters:

image - the Image object to be drawn

x - an int which specifies the x-coordinate of the reference point

y - an int which specifies the y-coordinate of the reference point

drawLine

public void drawLine(int x0,
                     int y0,
                     int x1,
                     int y1)

Draw a line from (x0,y0) to (x1,y1).

Overrides:

drawLine in class Draw

Parameters:

x0 - an int which specifies the x0 of the line origin, (x0,y0)

y0 - an int which specifies the y0 of the line origin, (x0,y0)

x1 - an int which specifies the x1 of the line destination, (x1,y1)

y1 - an int which specifies the y1 of the line destination, (x1,y1)

drawMarker

public void drawMarker(int x,
                       int y)

Draw a marker.

Overrides:

drawMarker in class Draw

Parameters:

x - an int which specifies the x of the marker destination, (x,y)

y - an int which specifies the y of the marker destination, (x,y)

drawText

public Dimension drawText(Text text,
                          int x,
                          int y)

Description copied from class: Draw

Draws a text object.

Overrides:

drawText in class Draw

Parameters:

text - the Text object to be drawn

x - an int which specifies the abscissa of the (x,y) point at which to start drawing the text

y - an int which specifies the ordinate of the (x,y) point at which to start drawing the text

endErrorBar

public void endErrorBar()

End ErrorBar

Overrides:

endErrorBar in class Draw

endFill

public void endFill()

End fill

Overrides:

endFill in class Draw

endImage

public void endImage()

End Image

Overrides:

endImage in class Draw

endLine

public void endLine()

Finish drawing lines.

Overrides:

endLine in class Draw

endMarker

public void endMarker()

Finish drawing markers.

Overrides:

endMarker in class Draw

endText

public void endText()

End Text

Overrides:

endText in class Draw

fillArc

public void fillArc(int x,
                    int y,
                    int width,
                    int height,
                    int startAngle,
                    int arcAngle)

Fills a circular or elliptical arc covering the specified rectangle. The center of the arc is center of this rectangle.

Overrides:

fillArc in class Draw

Parameters:

x - An int which specifies the x of the rectangle.

y - An int which specifies the y of the rectangle origin.

width - An int which specifies the width of the rectangle.

height - An int which specifies the height of the rectangle.

startAngle - An int which specifies the start angle in degrees. startAngle = 0 is equivalent to the 3-o'clock position.

arcAngle - An int which specifies the arcAngle. drawArc draws the arc from startAngle to startAngle+arcAngle. A positive arcAngle indicates a counter-clockwise rotation. A negative arcAngle implies a clockwise rotation.

fillPolygon

public void fillPolygon(int[] xpoints,
                        int[] ypoints,
                        int npoints)

Fill a polygon.

Overrides:

fillPolygon in class Draw

Parameters:

xpoints - an int array which contains the abscissae of the points which define the polygon

ypoints - an int array which contains the ordinates of the points which define the polygon

npoints - an int which specifies the number of points

fillPolygon

public void fillPolygon(Polygon polygon)

Fill a polygon defined by a Polygon object.

Overrides:

fillPolygon in class Draw

Parameters:

polygon - a Polygon object which specifies the polygon to be filled

fillRectangle

public void fillRectangle(int x,
                          int y,
                          int width,
                          int height)

Fill a rectangle.

Overrides:

fillRectangle in class Draw

Parameters:

x - an int which specifies the abscissa of the origin of the rectangle

y - an int which specifies the ordinate of the origin of the rectangle

width - an int which specifies the width of the rectangle

height - an int which specifies the height of the rectangle

fire

public void fire()

Fires the pickListeners for all of the picked nodes.

getTolerance

public int getTolerance()

Get the minimum distance that an event can be from a point or a line and still be considered a hit.

Returns:

an int which specifies the minimum distance that an event can be from a point or a line and still be considered a hit

pickNode

protected void pickNode()

Register the currentNode as the "picked" node if the "PickListener" attribute is defined for the current node.

setNode

public void setNode(ChartNode node)

Set the current ChartNode. This is used to get drawing attributes from the tree.

Overrides:

setNode in class Draw

Parameters:

node - a ChartNode object

setTolerance

public void setTolerance(int tolerance)

Set the minimum distance that an event can be from a point or a line and still be considered a hit.

Parameters:

tolerance - an int which specifies the minimum distance that an event can be from a point or a line and still be considered a hit

startErrorBar

public void startErrorBar()

Start ErrorBar

Overrides:

startErrorBar in class Draw

startFill

public void startFill()

Fill

Overrides:

startFill in class Draw

startImage

public void startImage()

Start Image

Overrides:

startImage in class Draw

startLine

public void startLine()

Start drawing lines.

Overrides:

startLine in class Draw

startMarker

public void startMarker()

Start drawing markers.

Overrides:

startMarker in class Draw

startText

public void startText()

Start drawing text

Overrides:

startText in class Draw

translate

public void translate(int x,
                      int y)

Translates the origin to the point (x,y)

Overrides:

translate in class Draw

Parameters:

x - an int which specifies the x of the new origin

y - an int which specifies the y of the new origin