Package com.intellij.ui.paint

Class LinePainter2D

java.lang.Object

com.intellij.ui.paint.LinePainter2D

public class LinePainter2D
extends java.lang.Object

Draws a line with a stroke defined by LinePainter2D.StrokeType, provided that the graphics stroke is BasicStroke), otherwise defaults to Graphics2D.draw(Line2D.Double).

It's assumed that the ScaleType.USR_SCALE factor is already applied to the values (given in the user space) passed to the methods of this class. So the user scale factor is not taken into account.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	LinePainter2D.Align A enum bit in a flag which defines alignment for a line or a rectangle.
static class	LinePainter2D.StrokeType Defines the way the stroke is painted relative to the vector [x1, y1] -> [x2, y2].

Constructor Summary

Constructors

Constructor and Description
LinePainter2D()

Method Summary

Modifier and Type	Method and Description
static java.awt.geom.Line2D	align(java.awt.Graphics2D g, java.util.EnumSet<LinePainter2D.Align> align, double x, double y, double prefLength, boolean vertical, LinePainter2D.StrokeType strokeType, double strokeWidth) Aligns the line relative to the provided x, y according to the provided align.
static void	fillPolygon(java.awt.Graphics2D g, double [] xPoints, double [] yPoints, int nPoints, LinePainter2D.StrokeType strokeType, double strokeWidth, java.lang.Object valueAA) Fills a polygon.
static double	getStrokeCenter(java.awt.Graphics2D g, double xy, LinePainter2D.StrokeType strokeType, double strokeWidth) Returns the x (y) coordinate of the center of the stroke.
static void	paint(java.awt.Graphics2D g, double x1, double y1, double x2, double y2)
static void	paint(java.awt.Graphics2D g, double x1, double y1, double x2, double y2, LinePainter2D.StrokeType strokeType, double strokeWidth)
static void	paint(java.awt.Graphics2D g, double x1, double y1, double x2, double y2, LinePainter2D.StrokeType strokeType, double strokeWidth, java.lang.Object valueAA) Draws a line.
static void	paint(java.awt.Graphics2D g, java.awt.geom.Line2D line, LinePainter2D.StrokeType strokeType, double strokeWidth, java.lang.Object valueAA)
static void	paintPolygon(java.awt.Graphics2D g, double [] xPoints, double [] yPoints, int nPoints, LinePainter2D.StrokeType strokeType, double strokeWidth, java.lang.Object valueAA) Draws a polygon.

Methods inherited from class java.lang.Object

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

Constructor Detail

LinePainter2D

public LinePainter2D()

Method Detail

paint

public static void paint(java.awt.Graphics2D g,
                         double x1,
                         double y1,
                         double x2,
                         double y2)

See Also:

paint(Graphics2D, double, double, double, double, StrokeType, double, Object)

paint

public static void paint(java.awt.Graphics2D g,
                         double x1,
                         double y1,
                         double x2,
                         double y2,
                         LinePainter2D.StrokeType strokeType,
                         double strokeWidth)

See Also:

paint(Graphics2D, double, double, double, double, StrokeType, double, Object)

paint

public static void paint(java.awt.Graphics2D g,
                         java.awt.geom.Line2D line,
                         LinePainter2D.StrokeType strokeType,
                         double strokeWidth,
                         java.lang.Object valueAA)

See Also:

paint(Graphics2D, double, double, double, double, StrokeType, double, Object)

paint

public static void paint(java.awt.Graphics2D g,
                         double x1,
                         double y1,
                         double x2,
                         double y2,
                         LinePainter2D.StrokeType strokeType,
                         double strokeWidth,
                         java.lang.Object valueAA)

Draws a line.

Parameters:

g - the graphics to paint on

x1 - x1

y1 - y1

x2 - x2

y2 - y2

strokeType - the stroke type

strokeWidth - the stroke width

valueAA - overrides current RenderingHints.KEY_ANTIALIASING to valueAA

fillPolygon

public static void fillPolygon(java.awt.Graphics2D g,
                               double [] xPoints,
                               double [] yPoints,
                               int nPoints,
                               LinePainter2D.StrokeType strokeType,
                               double strokeWidth,
                               java.lang.Object valueAA)

Fills a polygon.

Parameters:

g - the graphics

xPoints - the x polygon points

yPoints - the y polygon points

nPoints - the number of points

strokeType - the stroke type

strokeWidth - the stroke width

valueAA - overrides current RenderingHints.KEY_ANTIALIASING to valueAA

paintPolygon

public static void paintPolygon(java.awt.Graphics2D g,
                                double [] xPoints,
                                double [] yPoints,
                                int nPoints,
                                LinePainter2D.StrokeType strokeType,
                                double strokeWidth,
                                java.lang.Object valueAA)

Draws a polygon.

Parameters:

g - the graphics

xPoints - the x polygon points

yPoints - the y polygon points

nPoints - the number of points

strokeType - the stroke type

strokeWidth - the stroke width

valueAA - overrides current RenderingHints.KEY_ANTIALIASING to valueAA

align

public static java.awt.geom.Line2D align(java.awt.Graphics2D g,
                                         java.util.EnumSet<LinePainter2D.Align> align,
                                         double x,
                                         double y,
                                         double prefLength,
                                         boolean vertical,
                                         LinePainter2D.StrokeType strokeType,
                                         double strokeWidth)

Aligns the line relative to the provided x, y according to the provided align. If align contains CENTER_X, the provided x is treated as the x center. If align contains CENTER_Y, the provided y is treated as the y center. Otherwise, x and/or y is not changed.

As the center x (y) coordinate it's expected either a value equal to integer in the device space, in which case the prefLength is adjusted to a closed even value in the device space, or a value b/w two integers in the device space, in which case the prefLength is adjusted to a closed odd value in the device space.

Parameters:

g - the graphics

align - the align

x - x obeying align

y - y obeying align

prefLength - the preferred length of the line

vertical - whether the line is vertical or horizontal

strokeType - the stroke type

strokeWidth - the stroke width

Returns:

the line with aligned coordinates and length with adjusted parity

getStrokeCenter

public static double getStrokeCenter(java.awt.Graphics2D g,
                                     double xy,
                                     LinePainter2D.StrokeType strokeType,
                                     double strokeWidth)

Returns the x (y) coordinate of the center of the stroke.

Parameters:

g - the graphics

xy - the x or y coordinate

strokeType - the stroke type

strokeWidth - the stroke width

Returns:

the coordinate of the center of the stroke