view.mapComponents

Class ShapeDrawer

java.lang.Object

view.mapComponents.ShapeDrawer

public class ShapeDrawer
extends java.lang.Object

The ShapeDrawer class is used to draw shapes. It is built so that the shapes are drawn correctly on the screen, also in case of zooming in. Each MapComponentView relies on this class for visualization.

Author:

S.A.M. Janssen

Field Summary

Fields

Modifier and Type	Field and Description
private static java.awt.Graphics2D	g2 Graphics.
private static double	pixelRatio The pixel ratio.
private static int	xOffset The offset in the x direction.
private static int	yOffset The offset in the y direction.

Constructor Summary

Constructors

Modifier	Constructor and Description
private	ShapeDrawer() Private class to prevent object creation.

Method Summary

Modifier and Type	Method and Description
static void	drawCircle(java.awt.Color color, Position position, double radius) Draws a circle.
static void	drawLine(java.awt.Color color, Position start, Position end) Draws a line.
static void	drawPath(java.awt.Color color, Position position, java.util.List<Position> positions) Draws a path.
static void	drawPolygon(java.awt.Color color, java.util.List<Position> positions) Draws a polygon.
static void	drawRectangle(java.awt.Color color, Position position, double width, double height) Draws a rectangle.
static java.awt.Color	getComplementaryColor(java.awt.Color color) Gets the complement of a Color.
static java.awt.Rectangle	getRectangle(Position position, double width, double height) Gets a rectangle that can be used as a bounding box.
static void	updateVariables(java.awt.Graphics2D g2, double pixelRatio, int xOffset, int yOffset) Updates the variables.

Methods inherited from class java.lang.Object

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

Field Detail

g2

private static java.awt.Graphics2D g2

Graphics.

pixelRatio

private static double pixelRatio

The pixel ratio.

xOffset

private static int xOffset

The offset in the x direction.

yOffset

private static int yOffset

The offset in the y direction.

Constructor Detail

ShapeDrawer

private ShapeDrawer()

Private class to prevent object creation.

Method Detail

drawCircle

public static void drawCircle(java.awt.Color color,
                              Position position,
                              double radius)

Draws a circle.

Parameters:

color - The color.

position - The center of the circle.

radius - The radius.

drawLine

public static void drawLine(java.awt.Color color,
                            Position start,
                            Position end)

Draws a line.

Parameters:

color - The color.

start - The start position.

end - The end position.

drawPath

public static void drawPath(java.awt.Color color,
                            Position position,
                            java.util.List<Position> positions)

Draws a path.

Parameters:

color - The color.

position - The start position.

positions - The positions of the path.

drawPolygon

public static void drawPolygon(java.awt.Color color,
                               java.util.List<Position> positions)

Draws a polygon.

Parameters:

color - The color.

positions - The corners.

drawRectangle

public static void drawRectangle(java.awt.Color color,
                                 Position position,
                                 double width,
                                 double height)

Draws a rectangle.

Parameters:

color - The color.

position - The top left position.

width - The width.

height - The height.

getComplementaryColor

public static java.awt.Color getComplementaryColor(java.awt.Color color)

Gets the complement of a Color.

Parameters:

color - The color.

Returns:

The complement color.

getRectangle

public static java.awt.Rectangle getRectangle(Position position,
                                              double width,
                                              double height)

Gets a rectangle that can be used as a bounding box.

Parameters:

position - The top left position.

width - The width.

height - The height.

Returns:

The rectangle.

updateVariables

public static void updateVariables(java.awt.Graphics2D g2,
                                   double pixelRatio,
                                   int xOffset,
                                   int yOffset)

Updates the variables.

Parameters:

g2 - Graphics.

pixelRatio - Ratio.

xOffset - x offset.

yOffset - y offset.