Package com.starpoints.graphics

Class Graphics

java.lang.Object

com.starpoints.graphics.Graphics

public class Graphics
extends java.lang.Object

Platform independent painting canvas. The Graphics has an offset and a scaling factor, managing the calls to the applications GraphicContext-methods.

Constructor Summary

Constructors

Constructor	Description
Graphics(GraphicContext context, double xfactor, double yfactor)	Creates a new Graphics without offset.
Graphics(GraphicContext context, double xfactor, double yfactor, int xOffset, int yOffset)	Creates a new Graphics.

Method Summary

Modifier and Type	Method	Description
Graphics	create(int x, int y, double xFactor, double yFactor)	Creates a new Graphics with the given offset and scaling factors.
void	drawImageCentered(java.lang.String image, int x, int y)	Draws the image centered.
void	drawImageCentered(java.lang.String image, int x, int y, double factor)	Draws the image centered and scaled.
void	drawLine(int x1, int y1, int x2, int y2)	Draws a line.
void	drawOval(int x, int y, int width, int height)	Draws an oval.
void	drawRect(int x, int y, int width, int height)	Draws a rect.
void	drawString(java.lang.String str, int x, int y, Font f)	Draws a string.
void	fillOval(int x, int y, int width, int height)	Draws a filled oval.
void	fillRect(int x, int y, int width, int height)	Draws a filled rect.
Rectangle	getStringBounds(java.lang.String ct, Font currentFont)	Returns the bounding rectangle of the given string in the given font.
protected Font	scaleFont(Font f)	Returns a scaled variant of the font.
void	setColor(int c)	Sets the drawing color.

Methods inherited from class java.lang.Object

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

Constructor Detail

Graphics

public Graphics(GraphicContext context,
                double xfactor,
                double yfactor)

Creates a new Graphics without offset.

Parameters:

context - The GraphicContext.

xfactor - x scaling factor.

yfactor - y scaling factor.

Graphics

public Graphics(GraphicContext context,
                double xfactor,
                double yfactor,
                int xOffset,
                int yOffset)

Creates a new Graphics.

Parameters:

context - The GraphicContext.

xfactor - x scaling factor.

yfactor - y scaling factor.

xOffset - x offset.

yOffset - y offset.

Method Detail

drawImageCentered

public void drawImageCentered(java.lang.String image,
                              int x,
                              int y)

Draws the image centered.

Parameters:

image - The image.

x - The x coordinate.

y - The y coordinate.

drawImageCentered

public void drawImageCentered(java.lang.String image,
                              int x,
                              int y,
                              double factor)

Draws the image centered and scaled.

Parameters:

image - The image.

x - The x coordinate.

y - The y coordinate.

factor - The scaling factor.

setColor

public void setColor(int c)

Sets the drawing color.

Parameters:

c - The new color.

drawOval

public void drawOval(int x,
                     int y,
                     int width,
                     int height)

Draws an oval.

Parameters:

x - The x coordinate.

y - The y coordinate.

width - The width.

height - The height.

fillOval

public void fillOval(int x,
                     int y,
                     int width,
                     int height)

Draws a filled oval.

Parameters:

x - The x coordinate.

y - The y coordinate.

width - The width.

height - The height.

drawLine

public void drawLine(int x1,
                     int y1,
                     int x2,
                     int y2)

Draws a line.

Parameters:

x1 - The 1.x coordinate.

y1 - The 1.y coordinate.

x2 - The 2.x coordinate.

y2 - The 2.y coordinate.

drawRect

public void drawRect(int x,
                     int y,
                     int width,
                     int height)

Draws a rect.

Parameters:

x - The x coordinate.

y - The y coordinate.

width - The width.

height - The height.

fillRect

public void fillRect(int x,
                     int y,
                     int width,
                     int height)

Draws a filled rect.

Parameters:

x - The x coordinate.

y - The y coordinate.

width - The width.

height - The height.

drawString

public void drawString(java.lang.String str,
                       int x,
                       int y,
                       Font f)

Draws a string.

Parameters:

str - The String.

x - The x coordinate.

y - The y coordinate.

f - The font.

getStringBounds

public Rectangle getStringBounds(java.lang.String ct,
                                 Font currentFont)

Returns the bounding rectangle of the given string in the given font.

Parameters:

ct - The String.

currentFont - The Font.

Returns:

The String bounds.

scaleFont

protected Font scaleFont(Font f)

Returns a scaled variant of the font.

Parameters:

f - The font to scale.

Returns:

The scaled font according to this Graphics scaling factors.

create

public Graphics create(int x,
                       int y,
                       double xFactor,
                       double yFactor)

Creates a new Graphics with the given offset and scaling factors.

Parameters:

x - The X-offset.

y - The Y-offset.

xFactor - The x-scalingfactor.

yFactor - The y-scalingfactor.

Returns:

The Graphics.