org.knime.base.node.viz.aggregation
Class DrawingUtils

java.lang.Object
  org.knime.base.node.viz.aggregation.DrawingUtils

public final class DrawingUtils
extends Object

Utility class that eases the drawing of different shapes.

Author:

Tobias Koetter, University of Konstanz

Method Summary

static Arc2D	calculateBorderArc(Arc2D arc, BasicStroke stroke) Calculates the size of the arc with the given stroke.
static Rectangle2D	calculateBorderRect(Rectangle2D rect, BasicStroke stroke) Calculates the size of the rectangle with the given stroke.
static void	drawArc(Graphics2D g2, Arc2D arc, Paint paint, BasicStroke stroke) Draws the outline of the given arc.
static void	drawBlock(Graphics2D g2, Shape shape, Paint paint) Draws a filled rectangle without a border and default transparency.
static void	drawBlock(Graphics2D g2, Shape shape, Paint paint, float alpha) Draws a filled shape without a border.
static void	drawMessage(Graphics2D g2, Font font, String msg, Rectangle2D bounds) Draws the given message in the center of the given rectangle.
static void	drawOutline(Graphics2D g2, Shape shape, Paint paint, Stroke stroke) Draws the outline of the shape.
static void	drawRectangle(Graphics2D g2, Rectangle2D rect, Color color, BasicStroke stroke) Draws an empty rectangle.
static void	paintHorizontalLine(Graphics2D g2, int xOffset, int yOffset, int lineWidth, Color color, BasicStroke stroke) Draws a horizontal line starting at the given x/y offset with the given length.

Methods inherited from class java.lang.Object

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

Method Detail

drawMessage

public static void drawMessage(Graphics2D g2,
                               Font font,
                               String msg,
                               Rectangle2D bounds)

Draws the given message in the center of the given rectangle.

Parameters:

g2 - the graphic object to use

font - the font

msg - the message

bounds - the boundary to write in

paintHorizontalLine

public static void paintHorizontalLine(Graphics2D g2,
                                       int xOffset,
                                       int yOffset,
                                       int lineWidth,
                                       Color color,
                                       BasicStroke stroke)

Draws a horizontal line starting at the given x/y offset with the given length.

Parameters:

g2 - the graphics object to use

xOffset - the x offset of the line

yOffset - the y offset of the line

lineWidth - the width of the line

color - the drawing color

stroke - the stroke to use

drawBlock

public static void drawBlock(Graphics2D g2,
                             Shape shape,
                             Paint paint)

Draws a filled rectangle without a border and default transparency.

Parameters:

g2 - the graphic object

shape - the shape to fill

paint - the filling color or TexturePaint

drawBlock

public static void drawBlock(Graphics2D g2,
                             Shape shape,
                             Paint paint,
                             float alpha)

Draws a filled shape without a border.

Parameters:

g2 - the graphic object

shape - the shape to fill

paint - the filling color or TexturePaint

alpha - the transparency

drawOutline

public static void drawOutline(Graphics2D g2,
                               Shape shape,
                               Paint paint,
                               Stroke stroke)

Draws the outline of the shape.

Parameters:

g2 - the graphic object

shape - the shape to draw

paint - the filling color or TexturePaint

stroke - the Stroke to use

drawArc

public static void drawArc(Graphics2D g2,
                           Arc2D arc,
                           Paint paint,
                           BasicStroke stroke)

Draws the outline of the given arc.

Parameters:

g2 - the graphic object

arc - the arc to draw

paint - the filling color or TexturePaint

stroke - the Stroke to use

drawRectangle

public static void drawRectangle(Graphics2D g2,
                                 Rectangle2D rect,
                                 Color color,
                                 BasicStroke stroke)

Draws an empty rectangle.

Parameters:

g2 - the graphics object

rect - the rectangle to draw

color - the Color of the rectangle border

stroke - the BasicStroke to use

calculateBorderRect

public static Rectangle2D calculateBorderRect(Rectangle2D rect,
                                              BasicStroke stroke)

Calculates the size of the rectangle with the given stroke.

Parameters:

rect - the original size of the rectangle

stroke - the stroke which will be used to draw the rectangle

Returns:

the Rectangle2D to draw

calculateBorderArc

public static Arc2D calculateBorderArc(Arc2D arc,
                                       BasicStroke stroke)

Calculates the size of the arc with the given stroke.

Parameters:

arc - the original size of the arc

stroke - the stroke which will be used to draw the arc

Returns:

the Arc2D to draw