org.eclipse.birt.chart.computation

Class Methods

java.lang.Object

org.eclipse.birt.chart.computation.Methods

All Implemented Interfaces:

IConstants

Direct Known Subclasses:

AutoScale, DataSetAdapter, IntersectionValue, ScaleContext

public class Methods
extends java.lang.Object
implements IConstants

Methods

Field Summary

Fields inherited from interface org.eclipse.birt.chart.computation.IConstants

ABOVE, ANCILLARY_AXIS, ANCILLARY_BASE, AUTO, AVERAGE, AXIS, BACKWARD, BASE, BASE_AXIS, BELOW, BIG_NUMBER_PRIMITIVE_ARRAY, BOOLEAN, BOTTOM, CENTER, COLLECTION, DATE_TIME, DESIGN_TIME, EMPTY_STRING, EQUAL, FORWARD, HORIZONTAL, INSIDE, LABELS, LEFT, LEGEND_ENTRY, LEGEND_GROUP_NAME, LEGEND_MINSLICE_ENTRY, LEGEND_SEPERATOR, LESS, LINE_EXPAND_DOUBLE_SIZE, LINE_EXPAND_SIZE, LINEAR, LOG_10, LOGARITHMIC, MAJOR, MAX, MIN, MINOR, MORE, NON_PRIMITIVE_ARRAY, NULL_STRING, NUMBER_PRIMITIVE_ARRAY, NUMERICAL, ONE_SPACE, ORTHOGONAL, ORTHOGONAL_AXIS, OTHER, OUTSIDE, PERCENT, POSITION_MASK, POSITION_MOVE_ABOVE, POSITION_MOVE_BELOW, POSITION_MOVE_LEFT, POSITION_MOVE_RIGHT, PRIMITIVE_ARRAY, RIGHT, RUN_TIME, SOME_NULL, TEXT, THREE_D, TICK_ABOVE, TICK_ACROSS, TICK_BELOW, TICK_LEFT, TICK_NONE, TICK_RIGHT, TICK_SIDE1, TICK_SIDE2, TICK_SIZE, TOP, TWO_5_D, TWO_D, UNDEFINED, UNDEFINED_STRING, USER_INTERFACE, VALUE, VERTICAL

Constructor Summary

Constructors

Constructor and Description
Methods()

Method Summary

Methods

Modifier and Type	Method and Description
static CDateTime	asDateTime(java.lang.Object o) Converts given object to a DateTime object.
static java.lang.Double	asDouble(java.lang.Object o) Converts the given object to a Double object.
static int	asInteger(java.lang.Object o) Converts the given object to an Integer object.
static BoundingBox	computeBox(IDisplayServer xs, int iLabelLocation, Label la, double dX, double dY)
static BoundingBox	computeBox(IDisplayServer xs, int iLabelLocation, Label la, double dX, double dY, double dWrapping)
static BoundingBox	computeBox(IDisplayServer xs, int iLabelLocation, Label la, double dX, double dY, double dWrapping, java.lang.Double fontHeight)
static BoundingBox	computeBox(IDisplayServer xs, ITextMetrics itm, int iLabelLocation, Label la, double dX, double dY, java.lang.Double fontHeight)
static double	computeFontHeight(IDisplayServer xs, Label la) Convenient method to compute the font's height of a label.
static double	computeHeight(IDisplayServer xs, Label la)
static double	computeHeight(ITextMetrics itm, Label la)
static BoundingBox	computeLabelSize(IDisplayServer xs, Label la, double dWrapping, java.lang.Double fontHeight) Compute the size of a label.
static RotatedRectangle	computePolygon(IDisplayServer xs, int iLabelLocation, Label la, double dX, double dY)
static RotatedRectangle	computePolygon(IDisplayServer xs, int iLabelLocation, Label la, double dX, double dY, java.lang.Double fontHeight)
static RotatedRectangle	computePolygon(ITextMetrics itm, int iLabelLocation, Label la, double dX, double dY, java.lang.Double fontHeight)
static Location	computeRotatedTopPoint(IDisplayServer xs, BoundingBox bbox, Label la, double fullHeight)
static double	computeWidth(IDisplayServer xs, Label la)
static double	computeWidth(ITextMetrics itm, Label la)
static int	getLabelPosition(Position lp) Converts to internal (non public-model) data structures
static double	getLocation(AutoScale sc, double dValue)
static double	getLocation(AutoScale sc, java.lang.Number bdValue) Computes and returns the location based on specified value and scale info.
static double	getLocation(AutoScale sc, java.lang.Object oValue)
static double	getNormalizedLocation(AutoScale sc, double dValue)
static double	getNormalizedLocation(AutoScale sc, java.lang.Object oValue)

Methods inherited from class java.lang.Object

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

Constructor Detail

Methods

public Methods()

Method Detail

asDateTime

public static final CDateTime asDateTime(java.lang.Object o)

Converts given object to a DateTime object.

Parameters:

o -

Returns:

CDateTime

asDouble

public static final java.lang.Double asDouble(java.lang.Object o)

Converts the given object to a Double object.

Parameters:

o -

Returns:

Double

asInteger

public static final int asInteger(java.lang.Object o)

Converts the given object to an Integer object.

Parameters:

o -

Returns:

int

getLocation

public static final double getLocation(AutoScale sc,
                 java.lang.Object oValue)
                                throws ChartException,
                                       java.lang.IllegalArgumentException

Parameters:

sc -

oValue -

Returns:

location coordinate

Throws:

ChartException

java.lang.IllegalArgumentException

getNormalizedLocation

public static final double getNormalizedLocation(AutoScale sc,
                           double dValue)

Parameters:

sc -

dValue -

Returns:

location coordinate

getNormalizedLocation

public static final double getNormalizedLocation(AutoScale sc,
                           java.lang.Object oValue)
                                          throws ChartException,
                                                 java.lang.IllegalArgumentException

Parameters:

sc -

oValue -

Returns:

location coordinate

Throws:

ChartException

java.lang.IllegalArgumentException

getLocation

public static final double getLocation(AutoScale sc,
                 java.lang.Number bdValue)

Computes and returns the location based on specified value and scale info.

Parameters:

sc - scale info instance.

bdValue - specified value.

Returns:

getLocation

public static final double getLocation(AutoScale sc,
                 double dValue)
                                throws java.lang.IllegalArgumentException

Parameters:

sc -

dValue -

Returns:

location coordinate

Throws:

java.lang.IllegalArgumentException

computeWidth

public static final double computeWidth(IDisplayServer xs,
                  Label la)

Parameters:

g2d -

fm -

sText -

dAngleInDegrees -

Returns:

width

computeWidth

public static final double computeWidth(ITextMetrics itm,
                  Label la)

computeHeight

public static final double computeHeight(IDisplayServer xs,
                   Label la)

Parameters:

g2d -

fm -

sText -

iAngleInDegrees -

Returns:

height

computeHeight

public static final double computeHeight(ITextMetrics itm,
                   Label la)

computePolygon

public static final RotatedRectangle computePolygon(IDisplayServer xs,
                              int iLabelLocation,
                              Label la,
                              double dX,
                              double dY)
                                             throws java.lang.IllegalArgumentException

Parameters:

iLabelLocation -

g2d -

fm -

sText -

dAngleInDegrees -

dX -

dY -

Returns:

Note: If you find yourself calling this method very frequently while the font of the label is not changed, consider using the version with fontHeight instead. (following)

Throws:

java.lang.IllegalArgumentException

computePolygon

public static final RotatedRectangle computePolygon(IDisplayServer xs,
                              int iLabelLocation,
                              Label la,
                              double dX,
                              double dY,
                              java.lang.Double fontHeight)
                                             throws java.lang.IllegalArgumentException

Parameters:

xs -

iLabelLocation -

la -

dX -

dY -

fontHeight - , see also: computeFontHeight

Returns:

RotatedRectangle

Throws:

java.lang.IllegalArgumentException

computePolygon

public static final RotatedRectangle computePolygon(ITextMetrics itm,
                              int iLabelLocation,
                              Label la,
                              double dX,
                              double dY,
                              java.lang.Double fontHeight)
                                             throws java.lang.IllegalArgumentException

Parameters:

xs -

iLabelLocation -

la -

dX -

dY -

fontHeight - , see also: computeFontHeight

Returns:

RotatedRectangle

Throws:

java.lang.IllegalArgumentException

computeRotatedTopPoint

public static final Location computeRotatedTopPoint(IDisplayServer xs,
                              BoundingBox bbox,
                              Label la,
                              double fullHeight)
                                             throws java.lang.IllegalArgumentException

Parameters:

xs -

bbox -

la -

fullHeight -

Returns:

Location

Throws:

java.lang.IllegalArgumentException

computeBox

public static final BoundingBox computeBox(IDisplayServer xs,
                     int iLabelLocation,
                     Label la,
                     double dX,
                     double dY)
                                    throws java.lang.IllegalArgumentException

Parameters:

xs -

iLabelLocation -

la -

dX -

dY -

Returns:

BoundingBox

Throws:

java.lang.IllegalArgumentException

computeLabelSize

public static final BoundingBox computeLabelSize(IDisplayServer xs,
                           Label la,
                           double dWrapping,
                           java.lang.Double fontHeight)
                                          throws ChartException

Compute the size of a label.

Parameters:

xs -

la -

dWrapping -

fontHeight - , pre-computed font height

Returns:

BoundingBox

Throws:

ChartException

computeBox

public static final BoundingBox computeBox(IDisplayServer xs,
                     int iLabelLocation,
                     Label la,
                     double dX,
                     double dY,
                     double dWrapping)
                                    throws java.lang.IllegalArgumentException

Parameters:

xs -

iLabelLocation -

la -

dX -

dY -

dWrapping - the max size for wrapping by pixels

Returns:

BoundingBox

Throws:

java.lang.IllegalArgumentException

computeBox

public static final BoundingBox computeBox(IDisplayServer xs,
                     ITextMetrics itm,
                     int iLabelLocation,
                     Label la,
                     double dX,
                     double dY,
                     java.lang.Double fontHeight)
                                    throws java.lang.IllegalArgumentException

Throws:

java.lang.IllegalArgumentException

computeBox

public static final BoundingBox computeBox(IDisplayServer xs,
                     int iLabelLocation,
                     Label la,
                     double dX,
                     double dY,
                     double dWrapping,
                     java.lang.Double fontHeight)
                                    throws java.lang.IllegalArgumentException

Throws:

java.lang.IllegalArgumentException

getLabelPosition

public static final int getLabelPosition(Position lp)

Converts to internal (non public-model) data structures

Parameters:

lp -

Returns:

position state

computeFontHeight

public static double computeFontHeight(IDisplayServer xs,
                       Label la)

Convenient method to compute the font's height of a label. This computation is costly, but in most case we do not change the font of a label, we just change the string value, so the font height will not changed. The purpose of the method is to get the font height overhead for reusing.

Parameters:

xs -

la -

Returns:

font height