Package org.jfree.chart.util

Class AttrStringUtils

java.lang.Object

org.jfree.chart.util.AttrStringUtils

public class AttrStringUtils
extends java.lang.Object

Some AttributedString utilities.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	AttrStringUtils()

Method Summary

Modifier and Type	Method	Description
private static float[]	deriveRotationAnchorOffsets(java.awt.Graphics2D g2, java.text.AttributedString text, TextAnchor anchor)	A utility method that calculates the rotation anchor offsets for a string.
private static float[]	deriveTextBoundsAnchorOffsets(java.awt.Graphics2D g2, java.text.AttributedString text, TextAnchor anchor, java.awt.geom.Rectangle2D textBounds)
static void	drawRotatedString(java.text.AttributedString text, java.awt.Graphics2D g2, double angle, float x, float y)	Draws the attributed string at (x, y), rotated by the specified angle about (x, y).
static void	drawRotatedString(java.text.AttributedString text, java.awt.Graphics2D g2, float textX, float textY, double angle, float rotateX, float rotateY)	Draws the attributed string at (textX, textY), rotated by the specified angle about (rotateX, rotateY).
static void	drawRotatedString(java.text.AttributedString text, java.awt.Graphics2D g2, float x, float y, TextAnchor textAnchor, double angle, float rotationX, float rotationY)	Draws the string anchored to (x, y), rotated by the specified angle about (rotationX, rotationY).
static void	drawRotatedString(java.text.AttributedString text, java.awt.Graphics2D g2, float x, float y, TextAnchor textAnchor, double angle, TextAnchor rotationAnchor)	Draws a rotated string.
static java.awt.geom.Rectangle2D	getTextBounds(java.text.AttributedString text, java.awt.Graphics2D g2)	Returns the bounds for the attributed string.
private static boolean	isBaseline(TextAnchor anchor)
private static boolean	isBottom(TextAnchor anchor)
private static boolean	isHalfAscent(TextAnchor anchor)
private static boolean	isHalfHeight(TextAnchor anchor)
private static boolean	isHorizontalCenter(TextAnchor anchor)
private static boolean	isHorizontalLeft(TextAnchor anchor)
private static boolean	isHorizontalRight(TextAnchor anchor)
private static boolean	isTop(TextAnchor anchor)

Methods inherited from class java.lang.Object

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

Constructor Detail

AttrStringUtils

private AttrStringUtils()

Method Detail

getTextBounds

public static java.awt.geom.Rectangle2D getTextBounds(java.text.AttributedString text,
                                                      java.awt.Graphics2D g2)

Returns the bounds for the attributed string.

Parameters:

text - the attributed string (null not permitted).

g2 - the graphics target (null not permitted).

Returns:

The bounds (never null).

drawRotatedString

public static void drawRotatedString(java.text.AttributedString text,
                                     java.awt.Graphics2D g2,
                                     double angle,
                                     float x,
                                     float y)

Draws the attributed string at (x, y), rotated by the specified angle about (x, y).

Parameters:

text - the attributed string (null not permitted).

g2 - the graphics output target.

angle - the angle.

x - the x-coordinate.

y - the y-coordinate.

drawRotatedString

public static void drawRotatedString(java.text.AttributedString text,
                                     java.awt.Graphics2D g2,
                                     float textX,
                                     float textY,
                                     double angle,
                                     float rotateX,
                                     float rotateY)

Draws the attributed string at (textX, textY), rotated by the specified angle about (rotateX, rotateY).

Parameters:

text - the attributed string (null not permitted).

g2 - the graphics output target.

textX - the x-coordinate for the text.

textY - the y-coordinate for the text.

angle - the rotation angle (in radians).

rotateX - the x-coordinate for the rotation point.

rotateY - the y-coordinate for the rotation point.

drawRotatedString

public static void drawRotatedString(java.text.AttributedString text,
                                     java.awt.Graphics2D g2,
                                     float x,
                                     float y,
                                     TextAnchor textAnchor,
                                     double angle,
                                     float rotationX,
                                     float rotationY)

Draws the string anchored to (x, y), rotated by the specified angle about (rotationX, rotationY).

Parameters:

text - the text (null not permitted).

g2 - the graphics target.

x - the x-coordinate for the text location.

y - the y-coordinate for the text location.

textAnchor - the text anchor point.

angle - the rotation (in radians).

rotationX - the x-coordinate for the rotation point.

rotationY - the y-coordinate for the rotation point.

drawRotatedString

public static void drawRotatedString(java.text.AttributedString text,
                                     java.awt.Graphics2D g2,
                                     float x,
                                     float y,
                                     TextAnchor textAnchor,
                                     double angle,
                                     TextAnchor rotationAnchor)

Draws a rotated string.

Parameters:

text - the text to draw.

g2 - the graphics target.

x - the x-coordinate for the text location.

y - the y-coordinate for the text location.

textAnchor - the text anchor point.

angle - the rotation (in radians).

rotationAnchor - the rotation anchor point.

deriveTextBoundsAnchorOffsets

private static float[] deriveTextBoundsAnchorOffsets(java.awt.Graphics2D g2,
                                                     java.text.AttributedString text,
                                                     TextAnchor anchor,
                                                     java.awt.geom.Rectangle2D textBounds)

deriveRotationAnchorOffsets

private static float[] deriveRotationAnchorOffsets(java.awt.Graphics2D g2,
                                                   java.text.AttributedString text,
                                                   TextAnchor anchor)

A utility method that calculates the rotation anchor offsets for a string. These offsets are relative to the text starting coordinate (BASELINE_LEFT).

Parameters:

g2 - the graphics device.

text - the text.

anchor - the anchor point.

Returns:

The offsets.

isTop

private static boolean isTop(TextAnchor anchor)

isBaseline

private static boolean isBaseline(TextAnchor anchor)

isHalfAscent

private static boolean isHalfAscent(TextAnchor anchor)

isHalfHeight

private static boolean isHalfHeight(TextAnchor anchor)

isBottom

private static boolean isBottom(TextAnchor anchor)

isHorizontalLeft

private static boolean isHorizontalLeft(TextAnchor anchor)

isHorizontalCenter

private static boolean isHorizontalCenter(TextAnchor anchor)

isHorizontalRight

private static boolean isHorizontalRight(TextAnchor anchor)