nodebox.graphics
Class CanvasContext

java.lang.Object
  nodebox.graphics.AbstractGraphicsContext
      nodebox.graphics.CanvasContext

All Implemented Interfaces:

GraphicsContext

public class CanvasContext
extends AbstractGraphicsContext

Nested Class Summary

static class

CanvasContext.ImageMode

Nested classes/interfaces inherited from interface nodebox.graphics.GraphicsContext

GraphicsContext.ArrowType, GraphicsContext.EllipseMode, GraphicsContext.RectMode, GraphicsContext.VarType

Field Summary

static double	DEFAULT_HEIGHT
static double	DEFAULT_WIDTH
protected CanvasContext.ImageMode	imageMode

Fields inherited from class nodebox.graphics.AbstractGraphicsContext

align, autoClosePath, colorMode, colorRange, ellipseMode, fillColor, fontName, fontSize, lineHeight, path, pathClosed, rectMode, strokeColor, strokeWidth, transform, transformMode, transformStack

Fields inherited from interface nodebox.graphics.GraphicsContext

BOOLEAN, CENTER, cm, CMYK, CORNER, CORNERS, FONT, FORTYFIVE, HSB, inch, JUSTIFY, LEFT, mm, NORMAL, NUMBER, RADIUS, RGB, RIGHT, TEXT

Constructor Summary

CanvasContext()

CanvasContext(Canvas canvas)

Method Summary

protected void	addImage(Image i)
protected void	addPath(Path p)
protected void	addText(Text t)
Color	background() Get the current background color.
Color	background(Color c) Set the current background color to the given color.
Color	background(double x) Set the current background color to given grayscale value.
Color	background(double x, double y) Set the current background color to given grayscale and alpha value.
Color	background(double x, double y, double z) Set the current background color to the given R/G/B value.
Color	background(double x, double y, double z, double a) Set the current background color to the given R/G/B/A value.
void	draw(Grob grob) The draw method doesn't actually draw anything, but rather appends grobs to the canvas.
Canvas	getCanvas()
double	getHeight()
double	getHEIGHT()
double	getWidth()
double	getWIDTH()
Image	image(BufferedImage img, double x, double y, double width, double height, double alpha, boolean draw)
Image	image(Image img, double x, double y, double width, double height, double alpha, boolean draw)
Image	image(String path, double x, double y)
Image	image(String path, double x, double y, double width)
Image	image(String path, double x, double y, double width, double height)
Image	image(String path, double x, double y, double width, double height, boolean draw)
Image	image(String path, double x, double y, double width, double height, double alpha)
Image	image(String path, double x, double y, double width, double height, double alpha, boolean draw)
CanvasContext.ImageMode	imagemode()
CanvasContext.ImageMode	imagemode(CanvasContext.ImageMode m)
Size	imagesize(BufferedImage img)
Size	imagesize(Image img)
Size	imagesize(String path)
protected void	inheritFromContext(Image i)
void	nobackground()
void	resetContext()
void	resetContext(boolean resetBackground)
void	size(double width, double height)

Methods inherited from class nodebox.graphics.AbstractGraphicsContext

align, align, align, align, arrow, arrow, arrow, arrow, arrow, arrow, arrow, arrow, arrow, arrow, arrow, arrow, autoclosepath, autoclosepath, beginclip, beginpath, beginpath, BezierPath, choice, closepath, color, color, color, color, color, color, colormode, colormode, colormode, colormode, colormode, colormode, colormode, colorrange, colorrange, curveto, drawpath, drawpath, ellipse, ellipse, ellipsemode, ellipsemode, ellipsemode, ellipsemode, endclip, endpath, endpath, fill, fill, fill, fill, fill, fill, findpath, findpath, findVar, font, font, font, fontsize, fontsize, grid, grid, grid, grid, inheritFromContext, inheritFromContext, line, line, lineheight, lineheight, lineto, moveto, nofill, normalize, nostroke, outputmode, outputmode, oval, oval, Path, pop, push, random, random, random, random, random, rect, rect, rect, rect, rect, rect, rect, rect, rect, rect, rectmode, rectmode, rectmode, rectmode, reset, rotate, scale, scale, skew, skew, star, star, star, star, star, stroke, stroke, stroke, stroke, stroke, stroke, strokewidth, strokewidth, text, text, text, text, textheight, textheight, textmetrics, textmetrics, textmetrics, textpath, textpath, textpath, textwidth, textwidth, transform, transform, transform, transform, translate, var, var, var, var, var, var, var, var, var

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_WIDTH

public static final double DEFAULT_WIDTH

See Also:

Constant Field Values

DEFAULT_HEIGHT

public static final double DEFAULT_HEIGHT

See Also:

Constant Field Values

imageMode

protected CanvasContext.ImageMode imageMode

Constructor Detail

CanvasContext

public CanvasContext()

CanvasContext

public CanvasContext(Canvas canvas)

Method Detail

resetContext

public void resetContext()

Overrides:

resetContext in class AbstractGraphicsContext

resetContext

public void resetContext(boolean resetBackground)

imagemode

public CanvasContext.ImageMode imagemode()

imagemode

public CanvasContext.ImageMode imagemode(CanvasContext.ImageMode m)

size

public void size(double width,
                 double height)

getWidth

public double getWidth()

getHeight

public double getHeight()

getWIDTH

public double getWIDTH()

getHEIGHT

public double getHEIGHT()

background

public Color background()

Get the current background color.

Returns:

the current background color.

background

public Color background(double x)

Set the current background color to given grayscale value.

Parameters:

x - the gray component.

Returns:

the current background color.

background

public Color background(double x,
                        double y)

Set the current background color to given grayscale and alpha value.

Parameters:

x - the grayscale value.

y - the alpha value.

Returns:

the current background color.

background

public Color background(double x,
                        double y,
                        double z)

Set the current background color to the given R/G/B value.

Parameters:

x - the red component.

y - the green component.

z - the blue component.

Returns:

the current background color.

background

public Color background(double x,
                        double y,
                        double z,
                        double a)

Set the current background color to the given R/G/B/A value.

Parameters:

x - the red component.

y - the green component.

z - the blue component.

a - the alpha component.

Returns:

the current background color.

background

public Color background(Color c)

Set the current background color to the given color.

The color object is cloned; you can change the original afterwards. If the color object is null, the current background color is turned off (same as nobackground).

Parameters:

c - the color object.

Returns:

the current background color.

nobackground

public void nobackground()

getCanvas

public Canvas getCanvas()

image

public Image image(String path,
                   double x,
                   double y)

Specified by:

image in interface GraphicsContext

Overrides:

image in class AbstractGraphicsContext

image

public Image image(String path,
                   double x,
                   double y,
                   double width)

Specified by:

image in interface GraphicsContext

Overrides:

image in class AbstractGraphicsContext

image

public Image image(String path,
                   double x,
                   double y,
                   double width,
                   double height)

Specified by:

image in interface GraphicsContext

Overrides:

image in class AbstractGraphicsContext

image

public Image image(String path,
                   double x,
                   double y,
                   double width,
                   double height,
                   double alpha)

Specified by:

image in interface GraphicsContext

Overrides:

image in class AbstractGraphicsContext

image

public Image image(String path,
                   double x,
                   double y,
                   double width,
                   double height,
                   boolean draw)

Specified by:

image in interface GraphicsContext

Overrides:

image in class AbstractGraphicsContext

image

public Image image(String path,
                   double x,
                   double y,
                   double width,
                   double height,
                   double alpha,
                   boolean draw)

Specified by:

image in interface GraphicsContext

Overrides:

image in class AbstractGraphicsContext

image

public Image image(Image img,
                   double x,
                   double y,
                   double width,
                   double height,
                   double alpha,
                   boolean draw)

Specified by:

image in interface GraphicsContext

Overrides:

image in class AbstractGraphicsContext

image

public Image image(BufferedImage img,
                   double x,
                   double y,
                   double width,
                   double height,
                   double alpha,
                   boolean draw)

Specified by:

image in interface GraphicsContext

Overrides:

image in class AbstractGraphicsContext

imagesize

public Size imagesize(String path)

Specified by:

imagesize in interface GraphicsContext

Overrides:

imagesize in class AbstractGraphicsContext

imagesize

public Size imagesize(Image img)

Specified by:

imagesize in interface GraphicsContext

Overrides:

imagesize in class AbstractGraphicsContext

imagesize

public Size imagesize(BufferedImage img)

Specified by:

imagesize in interface GraphicsContext

Overrides:

imagesize in class AbstractGraphicsContext

draw

public void draw(Grob grob)

The draw method doesn't actually draw anything, but rather appends grobs to the canvas. When the canvas gets drawn, this grob will be drawn also.

Specified by:

draw in interface GraphicsContext

Overrides:

draw in class AbstractGraphicsContext

Parameters:

grob - the grob to append to the canvas

addPath

protected void addPath(Path p)

Specified by:

addPath in class AbstractGraphicsContext

addText

protected void addText(Text t)

Specified by:

addText in class AbstractGraphicsContext

addImage

protected void addImage(Image i)

inheritFromContext

protected void inheritFromContext(Image i)