com.mxgraph.shape

Class mxCurveLabelShape

java.lang.Object

com.mxgraph.shape.mxCurveLabelShape

All Implemented Interfaces:

mxITextShape

public class mxCurveLabelShape
extends java.lang.Object
implements mxITextShape

Draws the edge label along a curve derived from the curve describing the edge's path

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	mxCurveLabelShape.LabelGlyphCache Utility class to describe the characteristics of each glyph of a branch branch label.
class	mxCurveLabelShape.LabelPosition Utility class that stores details of how the label is positioned on the curve

Field Summary

Fields

Modifier and Type	Field and Description
int	centerVisibleIndex The index of the central glyph of the label that is visible
static double	CURVE_TEXT_STRETCH_FACTOR Factor by which text on the inside of curve is stretched
static java.lang.Object	FONT_FRACTIONALMETRICS Specifies if image aspect should be preserved in drawImage.
static java.awt.font.FontRenderContext	frc Shared FRC for font size calculations
static mxRectangle	INVALID_GLYPH_BOUNDS Indicates that a glyph does not have valid drawing bounds, usually because it is not visible
static double	LABEL_BUFFER Buffer at both ends of the label
java.awt.font.GlyphVector[]	rtlGlyphVectors Cache of BIDI glyph vectors

Constructor Summary

Constructors

Constructor and Description
mxCurveLabelShape(mxCellState state, mxCurve value)

Method Summary

Modifier and Type	Method and Description
mxRectangle	getCenterVisiblePosition() Returns the drawing bounds of the central indexed visible glyph
mxCurve	getCurve()
mxRectangle	getLabelBounds()
boolean	getRotationEnabled()
boolean	intersectsRect(java.awt.Rectangle rect) Returns whether or not the rectangle passed in hits any part of this curve.
void	paintShape(mxGraphics2DCanvas canvas, java.lang.String text, mxCellState state, java.util.Map<java.lang.String,java.lang.Object> style)
void	setCurve(mxCurve curve)
void	setRotationEnabled(boolean value)
mxRectangle	updateLabelBounds(java.lang.String label, java.util.Map<java.lang.String,java.lang.Object> style) Updates the cached position and size of each glyph in the edge label.

Methods inherited from class java.lang.Object

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

Field Detail

LABEL_BUFFER

public static double LABEL_BUFFER

Buffer at both ends of the label

CURVE_TEXT_STRETCH_FACTOR

public static double CURVE_TEXT_STRETCH_FACTOR

Factor by which text on the inside of curve is stretched

INVALID_GLYPH_BOUNDS

public static mxRectangle INVALID_GLYPH_BOUNDS

Indicates that a glyph does not have valid drawing bounds, usually because it is not visible

centerVisibleIndex

public int centerVisibleIndex

The index of the central glyph of the label that is visible

FONT_FRACTIONALMETRICS

public static java.lang.Object FONT_FRACTIONALMETRICS

Specifies if image aspect should be preserved in drawImage. Default is true.

rtlGlyphVectors

public java.awt.font.GlyphVector[] rtlGlyphVectors

Cache of BIDI glyph vectors

frc

public static java.awt.font.FontRenderContext frc

Shared FRC for font size calculations

Constructor Detail

mxCurveLabelShape

public mxCurveLabelShape(mxCellState state,
                         mxCurve value)

Method Detail

getRotationEnabled

public boolean getRotationEnabled()

setRotationEnabled

public void setRotationEnabled(boolean value)

paintShape

public void paintShape(mxGraphics2DCanvas canvas,
                       java.lang.String text,
                       mxCellState state,
                       java.util.Map<java.lang.String,java.lang.Object> style)

Specified by:

paintShape in interface mxITextShape

updateLabelBounds

public mxRectangle updateLabelBounds(java.lang.String label,
                                     java.util.Map<java.lang.String,java.lang.Object> style)

Updates the cached position and size of each glyph in the edge label.

Parameters:

label - the entire string of the label.

style - the edge style

intersectsRect

public boolean intersectsRect(java.awt.Rectangle rect)

Returns whether or not the rectangle passed in hits any part of this curve.

Parameters:

rect - the rectangle to detect for a hit

Returns:

whether or not the rectangle hits this curve

getCurve

public mxCurve getCurve()

Returns:

the curve

setCurve

public void setCurve(mxCurve curve)

Parameters:

curve - the curve to set

getLabelBounds

public mxRectangle getLabelBounds()

getCenterVisiblePosition

public mxRectangle getCenterVisiblePosition()

Returns the drawing bounds of the central indexed visible glyph

Returns:

the centerVisibleIndex