com.gargoylesoftware.htmlunit.javascript.host.canvas
Class CanvasRenderingContext2D

java.lang.Object
  net.sourceforge.htmlunit.corejs.javascript.ScriptableObject
      com.gargoylesoftware.htmlunit.javascript.SimpleScriptable
          com.gargoylesoftware.htmlunit.javascript.host.canvas.CanvasRenderingContext2D

All Implemented Interfaces:

Serializable, Cloneable, net.sourceforge.htmlunit.corejs.javascript.ConstProperties, net.sourceforge.htmlunit.corejs.javascript.debug.DebuggableObject, net.sourceforge.htmlunit.corejs.javascript.Scriptable

public class CanvasRenderingContext2D
extends SimpleScriptable

A JavaScript object for a CanvasRenderingContext2D.

Version:

$Revision: 7429 $

Author:

Ahmed Ashour

See Also:

Serialized Form

Field Summary

Fields inherited from class net.sourceforge.htmlunit.corejs.javascript.ScriptableObject

CONST, DONTENUM, EMPTY, PERMANENT, READONLY, UNINITIALIZED_CONST

Fields inherited from interface net.sourceforge.htmlunit.corejs.javascript.Scriptable

NOT_FOUND

Constructor Summary

CanvasRenderingContext2D()

Method Summary

void	arc(double x, double y, double radius, double startAngle, double endAngle, boolean anticlockwise) Draws an arc.
void	arcTo(double x1, double y1, double x2, double y2, double radius) Draws an arc.
void	beginPath() Begins the subpaths.
void	bezierCurveTo(double cp1x, double cp1y, double cp2x, double cp2y, double x, double y) Draws a cubic Bézier curve.
void	clearRect(double x, double y, double w, double h) Clears the specified rectangular area.
void	clip() Creates a new clipping region.
void	closePath() Closes the subpaths.
void	createLinearGradient(double x0, double y0, double r0, double x1, Object y1, Object r1) Creates linear gradient.
static void	drawImage(net.sourceforge.htmlunit.corejs.javascript.Context context, net.sourceforge.htmlunit.corejs.javascript.Scriptable thisObj, Object[] args, net.sourceforge.htmlunit.corejs.javascript.Function function) Draws images onto the canvas.
void	fill() Fills the shape.
void	fillRect(double x, double y, double w, double h) Paints the specified rectangular area.
Object	getFillStyle() Returns the "fillStyle" property.
double	getGlobalAlpha() Returns the "globalAlpha" property.
double	getLineWidth() Returns the "lineWidth" property.
Object	getStrokeStyle() Returns the "strokeStyle" property.
void	lineTo(double x, double y) Connect the last point to the given point.
void	moveTo(double x, double y) Creates a new subpath.
void	restore() Pops state stack and restore state.
void	save() Pushes state on state stack.
void	scale(Object x, Object y) Changes the transformation matrix to apply a scaling transformation with the given characteristics.
void	setFillStyle(Object fillStyle) Sets the "fillStyle" property.
void	setGlobalAlpha(Object globalAlpha) Sets the "globalAlpha" property.
void	setLineWidth(Object lineWidth) Sets the "lineWidth" property.
void	setStrokeStyle(Object strokeStyle) Sets the "strokeStyle" property.
void	stroke() Calculates the strokes of all the subpaths of the current path.
void	strokeRect(double x, double y, double w, double h) Strokes the specified rectangular area.
void	translate(Object x, Object y) Changes the transformation matrix to apply a translation transformation with the given characteristics.

Methods inherited from class com.gargoylesoftware.htmlunit.javascript.SimpleScriptable

clone, defineFunctionProperties, defineProperty, equivalentValues, get, getBrowserVersion, getClassName, getDefaultValue, getDomNodeOrDie, getDomNodeOrNull, getPrototype, getScriptableFor, getStartingScope, getTransformerScriptableFor, getWindow, getWindow, getWithPreemption, hasInstance, initParentScope, isReadOnlySettable, makeScriptableFor, setCaseSensitive, setDomNode, setDomNode, setHtmlElement

Methods inherited from class net.sourceforge.htmlunit.corejs.javascript.ScriptableObject

applyDescriptorToAttributeBitset, associateValue, avoidObjectDetection, buildDataDescriptor, callMethod, callMethod, checkPropertyChange, checkPropertyDefinition, defineClass, defineClass, defineClass, defineConst, defineConstProperty, defineOwnProperties, defineOwnProperty, defineOwnProperty, defineProperty, defineProperty, defineProperty, delete, delete, deleteProperty, deleteProperty, ensureScriptable, ensureScriptableObject, get, get, getAllIds, getArrayPrototype, getAssociatedValue, getAttributes, getAttributes, getAttributes, getAttributes, getClassPrototype, getDefaultValue, getFunctionPrototype, getGetterOrSetter, getIds, getObjectPrototype, getOwnPropertyDescriptor, getParentScope, getProperty, getProperty, getPropertyIds, getPrototype, getSlot, getTopLevelScope, getTopScopeValue, getTypedProperty, getTypedProperty, getTypeOf, has, has, hasProperty, hasProperty, isAccessorDescriptor, isConst, isDataDescriptor, isEmpty, isExtensible, isFalse, isGenericDescriptor, isGetterOrSetter, isSealed, isTrue, preventExtensions, put, put, putConst, putConstProperty, putProperty, putProperty, redefineProperty, sameValue, sealObject, setAttributes, setAttributes, setAttributes, setAttributes, setGetterOrSetter, setParentScope, setPrototype, size

Methods inherited from class java.lang.Object

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

Constructor Detail

CanvasRenderingContext2D

public CanvasRenderingContext2D()

Method Detail

getFillStyle

public Object getFillStyle()

Returns the "fillStyle" property.

Returns:

the "fillStyle" property

translate

public void translate(Object x,
                      Object y)

Changes the transformation matrix to apply a translation transformation with the given characteristics.

Parameters:

x - the translation distance in the horizontal direction

y - the translation distance in the vertical direction

scale

public void scale(Object x,
                  Object y)

Changes the transformation matrix to apply a scaling transformation with the given characteristics.

Parameters:

x - the scale factor in the horizontal direction

y - the scale factor in the vertical direction

setFillStyle

public void setFillStyle(Object fillStyle)

Sets the "fillStyle" property.

Parameters:

fillStyle - the "fillStyle" property

getStrokeStyle

public Object getStrokeStyle()

Returns the "strokeStyle" property.

Returns:

the "strokeStyle" property

setStrokeStyle

public void setStrokeStyle(Object strokeStyle)

Sets the "strokeStyle" property.

Parameters:

strokeStyle - the "strokeStyle" property

getLineWidth

public double getLineWidth()

Returns the "lineWidth" property.

Returns:

the "lineWidth" property

setLineWidth

public void setLineWidth(Object lineWidth)

Sets the "lineWidth" property.

Parameters:

lineWidth - the "lineWidth" property

getGlobalAlpha

public double getGlobalAlpha()

Returns the "globalAlpha" property.

Returns:

the "globalAlpha" property

setGlobalAlpha

public void setGlobalAlpha(Object globalAlpha)

Sets the "globalAlpha" property.

Parameters:

globalAlpha - the "globalAlpha" property

clearRect

public void clearRect(double x,
                      double y,
                      double w,
                      double h)

Clears the specified rectangular area.

Parameters:

x - the x

y - the y

w - the width

h - the height

fillRect

public void fillRect(double x,
                     double y,
                     double w,
                     double h)

Paints the specified rectangular area.

Parameters:

x - the x

y - the y

w - the width

h - the height

strokeRect

public void strokeRect(double x,
                       double y,
                       double w,
                       double h)

Strokes the specified rectangular area.

Parameters:

x - the x

y - the y

w - the width

h - the height

beginPath

public void beginPath()

Begins the subpaths.

closePath

public void closePath()

Closes the subpaths.

moveTo

public void moveTo(double x,
                   double y)

Creates a new subpath.

Parameters:

x - the x

y - the y

lineTo

public void lineTo(double x,
                   double y)

Connect the last point to the given point.

Parameters:

x - the x

y - the y

save

public void save()

Pushes state on state stack.

restore

public void restore()

Pops state stack and restore state.

createLinearGradient

public void createLinearGradient(double x0,
                                 double y0,
                                 double r0,
                                 double x1,
                                 Object y1,
                                 Object r1)

Creates linear gradient.

Parameters:

x0 - the x0

y0 - the y0

r0 - the r0

x1 - the x1

y1 - the y1

r1 - the r1

arc

public void arc(double x,
                double y,
                double radius,
                double startAngle,
                double endAngle,
                boolean anticlockwise)

Draws an arc.

Parameters:

x - the x

y - the y

radius - the radius

startAngle - the start angle

endAngle - the end angle

anticlockwise - is anti-clockwise

arcTo

public void arcTo(double x1,
                  double y1,
                  double x2,
                  double y2,
                  double radius)

Draws an arc.

Parameters:

x1 - the x1

y1 - the y1

x2 - the x2

y2 - the y2

radius - the radius

bezierCurveTo

public void bezierCurveTo(double cp1x,
                          double cp1y,
                          double cp2x,
                          double cp2y,
                          double x,
                          double y)

Draws a cubic Bézier curve.

Parameters:

cp1x - the cp1x

cp1y - the cp1y

cp2x - the cp2x

cp2y - the cp2y

x - the x

y - the y

fill

public void fill()

Fills the shape.

stroke

public void stroke()

Calculates the strokes of all the subpaths of the current path.

clip

public void clip()

Creates a new clipping region.

drawImage

public static void drawImage(net.sourceforge.htmlunit.corejs.javascript.Context context,
                             net.sourceforge.htmlunit.corejs.javascript.Scriptable thisObj,
                             Object[] args,
                             net.sourceforge.htmlunit.corejs.javascript.Function function)

Draws images onto the canvas.

Parameters:

context - the JavaScript context

thisObj - the scriptable

args - the arguments passed into the method

function - the function