void arc ( float x , float y , float r , float startAngle , float endAngle , PRBool clockwise )

Arguments:

x

y

r

startAngle

endAngle

clockwise

void arcTo ( float x1 , float y1 , float x2 , float y2 , float radius )

Arguments:

x1

y1

x2

y2

radius

void beginPath ( )

void bezierCurveTo ( float cp1x , float cp1y , float cp2x , float cp2y , float x , float y )

Arguments:

cp1x

cp1y

cp2x

cp2y

x

y

void clearRect ( float x , float y , float w , float h )

Arguments:

x

y

w

h

void clip ( )

void closePath ( )

nsIDOMCanvasGradient createLinearGradient ( float x0 , float y0 , float x1 , float y1 )

Arguments:

x0

y0

x1

y1

nsIDOMCanvasPattern createPattern ( nsIDOMHTMLElement image , DOMString repetition )

Arguments:

image

repetition

nsIDOMCanvasGradient createRadialGradient ( float x0 , float y0 , float r0 , float x1 , float y1 , float r1 )

Arguments:

x0

y0

r0

x1

y1

r1

void drawImage ( )

void drawWindow ( nsIDOMWindow window , PRInt32 x , PRInt32 y , PRInt32 w , PRInt32 h , DOMString bgColor )

Renders a region of a window into the canvas. The contents of the window's viewport are rendered, ignoring viewport clipping and scrolling.

Of course, the rendering obeys the current scale, transform and globalAlpha values.

Hints: -- If 'rgba(0,0,0,0)' is used for the background color, the drawing will be transparent wherever the window is transparent. -- Top-level browsed documents are usually not transparent because the user's background-color preference is applied, but IFRAMEs are transparent if the page doesn't set a background. -- If an opaque color is used for the background color, rendering will be faster because we won't have to compute the window's transparency.

This API cannot currently be used by Web content. It is chrome only.

Arguments:

window

x

y

w

h: specify the area of the window to render, in CSS pixels.

bgColor

void fill ( )

void fillRect ( float x , float y , float w , float h )

Arguments:

x

y

w

h

void getImageData ( )

PRBool isPointInPath ( float x , float y )

Arguments:

x

y

void lineTo ( float x , float y )

Arguments:

x

y

void moveTo ( float x , float y )

Arguments:

x

y

void mozDrawText ( DOMString textToDraw )

Arguments:

textToDraw

float mozMeasureText ( DOMString textToMeasure )

Arguments:

textToMeasure

void mozPathText ( DOMString textToPath )

Arguments:

textToPath

void mozTextAlongPath ( DOMString textToDraw , PRBool stroke )

Arguments:

textToDraw

stroke

void putImageData ( )

void quadraticCurveTo ( float cpx , float cpy , float x , float y )

Arguments:

cpx

cpy

x

y

void rect ( float x , float y , float w , float h )

Arguments:

x

y

w

h

void restore ( )

void rotate ( float angle )

Arguments:

angle

void save ( )

void scale ( float x , float y )

Arguments:

x

y

void setTransform ( float m11 , float m12 , float m21 , float m22 , float dx , float dy )

Arguments:

m11

m12

m21

m22

dx

dy

void stroke ( )

void strokeRect ( float x , float y , float w , float h )

Arguments:

x

y

w

h

void transform ( float m11 , float m12 , float m21 , float m22 , float dx , float dy )

Arguments:

m11

m12

m21

m22

dx

dy

void translate ( float x , float y )

Arguments:

x

y