Context2d (GWT Javadoc)

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## com.google.gwt.canvas.dom.client
Class Context2d

    java.lang.Object
      com.google.gwt.core.client.JavaScriptObject
          com.google.gwt.canvas.dom.client.Context2d

All Implemented Interfaces:
  Context

    public class Context2d

extends JavaScriptObject
implements Context

Rendering interface used to draw on a `CanvasElement`.

See Also:
  W3C HTML 5 Specification

Nested Class Summary
`static class` | `Context2d.Composite` Enum for composite style.
`static class` | `Context2d.LineCap` Enum for line-cap style.
`static class` | `Context2d.LineJoin` Enum for line-join style.
`static class` | `Context2d.Repetition` Enum for the repetition values.
`static class` | `Context2d.TextAlign` Enum for text align style.
`static class` | `Context2d.TextBaseline` Enum for text baseline style.

Field Summary
`static java.lang.String` | `CONTEXT_ID` Specifies the context id property used in creating a Context.

Constructor Summary
`protected` | `Context2d()`

Method Summary
`void` | `arc(double x, double y, double radius, double startAngle, double endAngle)` Draws an arc.
`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)` Adds an arc to the current subpath, connecting it to the current point with a line segment.
`void` | `beginPath()` Begins a new path.
`void` | `bezierCurveTo(double cp1x, double cp1y, double cp2x, double cp2y, double x, double y)` Draws a cubic Bézier curve from the current point to the point (x, y), with control points (cp1x, cp1y) and (cp2x, cp2y).
`void` | `clearRect(double x, double y, double w, double h)` Clears a rectangle.
`void` | `clip()` Creates a new clipping region from the current path.
`void` | `closePath()` Closes the current path.
`ImageData` | `createImageData(ImageData imagedata)` Creates an image data object of the same size as the given object.
`ImageData` | `createImageData(int w, int h)` Creates an image data object of the given size.
`CanvasGradient` | `createLinearGradient(double x0, double y0, double x1, double y1)` Creates a linear gradient.
`CanvasPattern` | `createPattern(CanvasElement image, Context2d.Repetition repetition)` Creates a pattern from another canvas.
`CanvasPattern` | `createPattern(CanvasElement image, java.lang.String repetition)` Creates a pattern from another canvas.
`CanvasPattern` | `createPattern(ImageElement image, Context2d.Repetition repetition)` Creates a pattern from an image.
`CanvasPattern` | `createPattern(ImageElement image, java.lang.String repetition)` Creates a pattern from an image.
`CanvasGradient` | `createRadialGradient(double x0, double y0, double r0, double x1, double y1, double r1)` Creates a radial gradient.
`void` | `drawImage(CanvasElement image, double dx, double dy)` Draws an image.
`void` | `drawImage(CanvasElement image, double dx, double dy, double dw, double dh)` Draws a scaled image.
`void` | `drawImage(CanvasElement image, double sx, double sy, double sw, double sh, double dx, double dy, double dw, double dh)` Draws a scaled subset of an image.
`void` | `drawImage(ImageElement image, double dx, double dy)` Draws an image.
`void` | `drawImage(ImageElement image, double dx, double dy, double dw, double dh)` Draws a scaled image.
`void` | `drawImage(ImageElement image, double sx, double sy, double sw, double sh, double dx, double dy, double dw, double dh)` Draws a scaled subset of an image.
`void` | `drawImage(VideoElement image, double dx, double dy)` Draws a video's current frame.
`void` | `drawImage(VideoElement image, double dx, double dy, double dw, double dh)` Draws a scaled video's current frame.
`void` | `drawImage(VideoElement image, double sx, double sy, double sw, double sh, double dx, double dy, double dw, double dh)` Draws a scaled subset of a video's current frame.
`void` | `fill()` Fills the current path.
`void` | `fillRect(double x, double y, double w, double h)` Fills a rectangle.
`void` | `fillText(java.lang.String text, double x, double y)` Draws filled text.
`void` | `fillText(java.lang.String text, double x, double y, double maxWidth)` Draws filled text squeezed into the given max width.
`CanvasElement` | `getCanvas()` Gets this context's canvas.
`FillStrokeStyle` | `getFillStyle()` Returns the context's fillStyle.
`java.lang.String` | `getFont()` Gets this context's font.
`double` | `getGlobalAlpha()` Gets the global alpha value.
`java.lang.String` | `getGlobalCompositeOperation()` Gets the global composite operation.
`ImageData` | `getImageData(double sx, double sy, double sw, double sh)` Returns an image data object for the screen area denoted by sx, sy, sw and sh.
`java.lang.String` | `getLineCap()` Gets the current line-cap style.
`java.lang.String` | `getLineJoin()` Gets the current line-join style.
`double` | `getLineWidth()` Gets the current line-width.
`double` | `getMiterLimit()` Gets the current miter-limit.
`double` | `getShadowBlur()` Gets the current shadow-blur.
`java.lang.String` | `getShadowColor()` Gets the current shadow color.
`double` | `getShadowOffsetX()` Gets the current x-shadow-offset.
`double` | `getShadowOffsetY()` Gets the current y-shadow-offset.
`FillStrokeStyle` | `getStrokeStyle()` Returns the context's strokeStyle.
`java.lang.String` | `getTextAlign()` Gets the current text align.
`java.lang.String` | `getTextBaseline()` Gets the current text baseline.
`boolean` | `isPointInPath(double x, double y)` Returns true if the given point is in the current path.
`void` | `lineTo(double x, double y)` Adds a line from the current point to the point (x, y) to the current path.
`TextMetrics` | `measureText(java.lang.String text)` Returns the metrics for the given text.
`void` | `moveTo(double x, double y)` Terminates the current path and sets the current path position to the point (x, y).
`void` | `putImageData(ImageData imagedata, double x, double y)` Draws the given image data at the given screen position.
`void` | `quadraticCurveTo(double cpx, double cpy, double x, double y)` Draws a quadratic Bézier curve from the current point to the point (x, y), with control point (cpx, cpy).
`void` | `rect(double x, double y, double w, double h)` Creates a new rectangular path.
`void` | `restore()` Restores the context's state.
`void` | `rotate(double angle)` Applies rotation to the current transform.
`void` | `save()` Saves the context's state.
`void` | `scale(double x, double y)` Applies scale to the current transform.
`void` | `setFillStyle(FillStrokeStyle fillStyle)` Sets the context's fillStyle.
`void` | `setFillStyle(java.lang.String fillStyleColor)` Convenience method to set the context's fillStyle to a `CssColor`, specified in String form.
`void` | `setFont(java.lang.String f)` Sets the font.
`void` | `setGlobalAlpha(double alpha)` Sets the global alpha value.
`void` | `setGlobalCompositeOperation(Context2d.Composite composite)` Sets the global composite operation.
`void` | `setGlobalCompositeOperation(java.lang.String globalCompositeOperation)` Sets the global composite operation.
`void` | `setLineCap(Context2d.LineCap lineCap)` Sets the line-cap style.
`void` | `setLineCap(java.lang.String lineCap)` Sets the line-cap style.
`void` | `setLineJoin(Context2d.LineJoin lineJoin)` Sets the line-join style.
`void` | `setLineJoin(java.lang.String lineJoin)` Sets the line-join style.
`void` | `setLineWidth(double lineWidth)` Sets the line-width.
`void` | `setMiterLimit(double miterLimit)` Sets the miter-limit.
`void` | `setShadowBlur(double shadowBlur)` Sets the shadow-blur.
`void` | `setShadowColor(java.lang.String shadowColor)` Sets the shadow-color.
`void` | `setShadowOffsetX(double shadowOffsetX)` Sets the x-shadow-offset.
`void` | `setShadowOffsetY(double shadowOffsetY)` Sets the y-shadow-offset.
`void` | `setStrokeStyle(FillStrokeStyle strokeStyle)` Sets the context's stroke style.
`void` | `setStrokeStyle(java.lang.String strokeStyleColor)` Convenience method to set the context's strokeStyle to a `CssColor`.
`void` | `setTextAlign(Context2d.TextAlign align)` Sets the text alignment.
`void` | `setTextAlign(java.lang.String align)` Sets the text alignment.
`void` | `setTextBaseline(Context2d.TextBaseline baseline)` Sets the text baseline.
`void` | `setTextBaseline(java.lang.String baseline)` Sets the text baseline.
`void` | `setTransform(double m11, double m12, double m21, double m22, double dx, double dy)` Sets the 2D transformation matrix.
`void` | `stroke()` Draws the current path with the current stroke style.
`void` | `strokeRect(double x, double y, double w, double h)` Draws the outline of a rectangle with the current stroke style.
`void` | `strokeText(java.lang.String text, double x, double y)` Draws the text outline.
`void` | `strokeText(java.lang.String text, double x, double y, double maxWidth)` Draws the text outline, squeezing the text into the given max width by compressing the font.
`void` | `transform(double m11, double m12, double m21, double m22, double dx, double dy)` Multiplies the current transform by the given matrix.
`void` | `translate(double x, double y)` Applies a translation to the current transform.

Methods inherited from class com.google.gwt.core.client.JavaScriptObject
`cast, createArray, createArray, createFunction, createObject, equals, hashCode, toSource, toString`

Methods inherited from class java.lang.Object
`clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

Field Detail

### CONTEXT_ID

    public static final java.lang.String CONTEXT_ID

  Specifies the context id property used in creating a Context.

  See Also:
    Constant Field Values

Constructor Detail

### Context2d

    protected Context2d()

Method Detail

### arc

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

  Draws an arc. If a current subpath exists, a line segment is added from the current point to the starting point of the arc. If `endAngle - startAngle` is equal to or greater than `2 * Math.Pi`, the arc is the whole circumference of the circle.

  Parameters:
    `x` - the x coordinate of the center of the arc
    `y` - the y coordinate of the center of the arc
    `radius` - the radius of the arc
    `startAngle` - the start angle, measured in radians clockwise from the positive x-axis
    `endAngle` - the end angle, measured in radians clockwise from the positive x-axis

### arc

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

  Draws an arc. If a current subpath exists, a line segment is added from the current point to the starting point of the arc. If `anticlockwise` is false and `endAngle - startAngle` is equal to or greater than `2 * Math.PI`, or if `anticlockwise` is `true` and `startAngle - endAngle` is equal to or greater than `2 * Math.PI`, then the arc is the whole circumference of the circle.

  Parameters:
    `x` - the x coordinate of the center of the arc
    `y` - the y coordinate of the center of the arc
    `radius` - the radius of the arc
    `startAngle` - the start angle, measured in radians clockwise from the positive x-axis
    `endAngle` - the end angle, measured in radians clockwise from the positive x-axis
    `anticlockwise` - if `true`, the arc is drawn in an anticlockwise direction

### arcTo

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

  Adds an arc to the current subpath, connecting it to the current point with a line segment.

  Parameters:
    `x1` - the x coordinate of the starting point of the arc
    `y1` - the y coordinate of the starting point of the arc
    `x2` - the x coordinate of the ending point of the arc
    `y2` - the y coordinate of the ending point of the arc
    `radius` - the radius of a circle containing the arc

### beginPath

    public final void beginPath()

  Begins a new path.

### bezierCurveTo

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

  Draws a cubic Bézier curve from the current point to the point (x, y), with control points (cp1x, cp1y) and (cp2x, cp2y).

  Parameters:
    `cp1x` - the x coordinate of the first control point
    `cp1y` - the y coordinate of the first control point
    `cp2x` - the x coordinate of the second control point
    `cp2y` - the y coordinate of the second control point
    `x` - the x coordinate of the end point
    `y` - the y coordinate of the end point

### clearRect

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

  Clears a rectangle.

  Parameters:
    `x` - the x coordinate of the rectangle's upper-left corner
    `y` - the y coordinate of the rectangle's upper-left corner
    `w` - the width of the rectangle
    `h` - the height of the rectangle

### clip

    public final void clip()

  Creates a new clipping region from the current path.

### closePath

    public final void closePath()

  Closes the current path.

### createImageData

    public final ImageData createImageData(ImageData imagedata)

  Creates an image data object of the same size as the given object.

  Parameters:
    `imagedata` - an `ImageData` object
  Returns:
    a new `ImageData` object

### createImageData

    public final ImageData createImageData(int w,
                                           int h)

  Creates an image data object of the given size.

  Parameters:
    `w` - the width of the image
    `h` - the height of the image
  Returns:
    an `ImageData` object

### createLinearGradient

    public final CanvasGradient createLinearGradient(double x0,
                                                     double y0,
                                                     double x1,
                                                     double y1)

  Creates a linear gradient.

  Parameters:
    `x0` - the x coordinate of the starting point of the gradient
    `y0` - the y coordinate of the starting point of the gradient
    `x1` - the x coordinate of the ending point of the gradient
    `y1` - the y coordinate of the ending point of the gradient
  Returns:
    a `CanvasGradient` object

### createPattern

    public final CanvasPattern createPattern(CanvasElement image,
                                             Context2d.Repetition repetition)

  Creates a pattern from another canvas.

  Parameters:
    `image` - an `CanvasElement` object
    `repetition` - a `Context2d.Repetition` object
  Returns:
    a `CanvasPattern` object

### createPattern

    public final CanvasPattern createPattern(CanvasElement image,
                                             java.lang.String repetition)

  Creates a pattern from another canvas.

  Parameters:
    `image` - an `CanvasElement` object
    `repetition` - the repetition type as a String
  Returns:
    a `CanvasPattern` object

### createPattern

    public final CanvasPattern createPattern(ImageElement image,
                                             Context2d.Repetition repetition)

  Creates a pattern from an image.

  Parameters:
    `image` - an `ImageElement` object
    `repetition` - a `Context2d.Repetition` object
  Returns:
    a `CanvasPattern` object

### createPattern

    public final CanvasPattern createPattern(ImageElement image,
                                             java.lang.String repetition)

  Creates a pattern from an image.

  Parameters:
    `image` - an `ImageElement` object
    `repetition` - the repetition type as a String
  Returns:
    a `CanvasPattern` object

### createRadialGradient

    public final CanvasGradient createRadialGradient(double x0,
                                                     double y0,
                                                     double r0,
                                                     double x1,
                                                     double y1,
                                                     double r1)

  Creates a radial gradient.

  Parameters:
    `x0` - the x coordinate of the center of the start circle of the gradient
    `y0` - the y coordinate of the center of the start circle of the gradient
    `r0` - the radius of the start circle of the gradient
    `x1` - the x coordinate of the center of the end circle of the gradient
    `y1` - the y coordinate of the center of the end circle of the gradient
    `r1` - the radius of the end circle of the gradient
  Returns:
    a `CanvasGradient` object

### drawImage

    public final void drawImage(CanvasElement image,
                                double dx,
                                double dy)

  Draws an image.

  Parameters:
    `image` - an `CanvasElement` object
    `dx` - the x coordinate of the upper-left corner of the destination rectangle
    `dy` - the y coordinate of the upper-left corner of the destination rectangle

### drawImage

    public final void drawImage(CanvasElement image,
                                double dx,
                                double dy,
                                double dw,
                                double dh)

  Draws a scaled image.

  Parameters:
    `image` - an `CanvasElement` object
    `dx` - the x coordinate of the upper-left corner of the destination rectangle
    `dy` - the y coordinate of the upper-left corner of the destination rectangle
    `dw` - the width of the destination rectangle
    `dh` - the height of the destination rectangle

### drawImage

    public final void drawImage(CanvasElement image,
                                double sx,
                                double sy,
                                double sw,
                                double sh,
                                double dx,
                                double dy,
                                double dw,
                                double dh)

  Draws a scaled subset of an image.

  Parameters:
    `image` - an `CanvasElement` object
    `sx` - the x coordinate of the upper-left corner of the source rectangle
    `sy` - the y coordinate of the upper-left corner of the source rectangle
    `sw` - the width of the source rectangle
    `sh` - the width of the source rectangle
    `dx` - the x coordinate of the upper-left corner of the destination rectangle
    `dy` - the y coordinate of the upper-left corner of the destination rectangle
    `dw` - the width of the destination rectangle
    `dh` - the height of the destination rectangle

### drawImage

    public final void drawImage(ImageElement image,
                                double dx,
                                double dy)

  Draws an image.

  Parameters:
    `image` - an `ImageElement` object
    `dx` - the x coordinate of the upper-left corner of the destination rectangle
    `dy` - the y coordinate of the upper-left corner of the destination rectangle

### drawImage

    public final void drawImage(ImageElement image,
                                double dx,
                                double dy,
                                double dw,
                                double dh)

  Draws a scaled image.

  Parameters:
    `image` - an `ImageElement` object
    `dx` - the x coordinate of the upper-left corner of the destination rectangle
    `dy` - the y coordinate of the upper-left corner of the destination rectangle
    `dw` - the width of the destination rectangle
    `dh` - the height of the destination rectangle

### drawImage

    public final void drawImage(ImageElement image,
                                double sx,
                                double sy,
                                double sw,
                                double sh,
                                double dx,
                                double dy,
                                double dw,
                                double dh)

  Draws a scaled subset of an image.

  Parameters:
    `image` - an `ImageElement` object
    `sx` - the x coordinate of the upper-left corner of the source rectangle
    `sy` - the y coordinate of the upper-left corner of the source rectangle
    `sw` - the width of the source rectangle
    `sh` - the width of the source rectangle
    `dx` - the x coordinate of the upper-left corner of the destination rectangle
    `dy` - the y coordinate of the upper-left corner of the destination rectangle
    `dw` - the width of the destination rectangle
    `dh` - the height of the destination rectangle

### drawImage

    public final void drawImage(VideoElement image,
                                double dx,
                                double dy)

  Draws a video's current frame.

  Parameters:
    `image` - a `VideoElement` object
    `dx` - the x coordinate of the upper-left corner of the destination rectangle
    `dy` - the y coordinate of the upper-left corner of the destination rectangle

### drawImage

    public final void drawImage(VideoElement image,
                                double dx,
                                double dy,
                                double dw,
                                double dh)

  Draws a scaled video's current frame.

  Parameters:
    `image` - a `VideoElement` object
    `dx` - the x coordinate of the upper-left corner of the destination rectangle
    `dy` - the y coordinate of the upper-left corner of the destination rectangle
    `dw` - the width of the destination rectangle
    `dh` - the height of the destination rectangle

### drawImage

    public final void drawImage(VideoElement image,
                                double sx,
                                double sy,
                                double sw,
                                double sh,
                                double dx,
                                double dy,
                                double dw,
                                double dh)

  Draws a scaled subset of a video's current frame.

  Parameters:
    `image` - a `VideoElement` object
    `sx` - the x coordinate of the upper-left corner of the source rectangle
    `sy` - the y coordinate of the upper-left corner of the source rectangle
    `sw` - the width of the source rectangle
    `sh` - the width of the source rectangle
    `dx` - the x coordinate of the upper-left corner of the destination rectangle
    `dy` - the y coordinate of the upper-left corner of the destination rectangle
    `dw` - the width of the destination rectangle
    `dh` - the height of the destination rectangle

### fill

    public final void fill()

  Fills the current path.

### fillRect

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

  Fills a rectangle.

  Parameters:
    `x` - the x coordinate of the rectangle's upper-left corner
    `y` - the y coordinate of the rectangle's upper-left corner
    `w` - the width of the rectangle
    `h` - the height of the rectangle

### fillText

    public final void fillText(java.lang.String text,
                               double x,
                               double y)

  Draws filled text.

  Parameters:
    `text` - the text as a String
    `x` - the x coordinate of the text position
    `y` - the y coordinate of the text position

### fillText

    public final void fillText(java.lang.String text,
                               double x,
                               double y,
                               double maxWidth)

  Draws filled text squeezed into the given max width.

  Parameters:
    `text` - the text as a String
    `x` - the x coordinate of the text position
    `y` - the y coordinate of the text position
    `maxWidth` - the maximum width for the text

### getCanvas

    public final CanvasElement getCanvas()

  Gets this context's canvas.

  Returns:
    a `CanvasElement` object

### getFillStyle

    public final FillStrokeStyle getFillStyle()

  Returns the context's fillStyle. In dev mode, the returned object will be wrapped in a JavaScript array.

  Returns:
    a `FillStrokeStyle` object
  See Also:
    `setFillStyle(FillStrokeStyle)`, `setFillStyle(String)`, `CssColor`

### getFont

    public final java.lang.String getFont()

  Gets this context's font.

  Returns:
    the font name as a String
  See Also:
    `setFont(String)`

### getGlobalAlpha

    public final double getGlobalAlpha()

  Gets the global alpha value.

  Returns:
    the global alpha value as a double
  See Also:
    `setGlobalAlpha(double)`

### getGlobalCompositeOperation

    public final java.lang.String getGlobalCompositeOperation()

  Gets the global composite operation.

  Returns:
    the global composite operation as a String
  See Also:
    `setGlobalCompositeOperation(Composite)`, `setGlobalCompositeOperation(String)`

### getImageData

    public final ImageData getImageData(double sx,
                                        double sy,
                                        double sw,
                                        double sh)

  Returns an image data object for the screen area denoted by sx, sy, sw and sh.

  Parameters:
    `sx` - the x coordinate of the upper-left corner of the desired area
    `sy` - the y coordinate of the upper-left corner of the desired area
    `sw` - the width of the desired area
    `sh` - the height of the desired area
  Returns:
    an `ImageData` object containing screen pixel data

### getLineCap

    public final java.lang.String getLineCap()

  Gets the current line-cap style.

  Returns:
    the line cap style as a String
  See Also:
    `setLineCap(LineCap)`, `setLineCap(String)`

### getLineJoin

    public final java.lang.String getLineJoin()

  Gets the current line-join style.

  Returns:
    the line join style as a String
  See Also:
    `setLineJoin(LineJoin)`, `setLineJoin(String)`

### getLineWidth

    public final double getLineWidth()

  Gets the current line-width.

  Returns:
    the line width as a double
  See Also:
    `setLineWidth(double)`

### getMiterLimit

    public final double getMiterLimit()

  Gets the current miter-limit.

  Returns:
    the miter limit as a double
  See Also:
    `setMiterLimit(double)`

### getShadowBlur

    public final double getShadowBlur()

  Gets the current shadow-blur.

  Returns:
    the shadow blur amount as a double
  See Also:
    `setShadowBlur(double)`

### getShadowColor

    public final java.lang.String getShadowColor()

  Gets the current shadow color.

  Returns:
    the shadow color as a String
  See Also:
    `setShadowColor(String)`

### getShadowOffsetX

    public final double getShadowOffsetX()

  Gets the current x-shadow-offset.

  Returns:
    the shadow x offset as a double
  See Also:
    `setShadowOffsetX(double)`, `getShadowOffsetY()`

### getShadowOffsetY

    public final double getShadowOffsetY()

  Gets the current y-shadow-offset.

  Returns:
    the shadow y offset as a double
  See Also:
    `setShadowOffsetY(double)`, `getShadowOffsetX()`

### getStrokeStyle

    public final FillStrokeStyle getStrokeStyle()

  Returns the context's strokeStyle. In dev mode, the returned object will be wrapped in a JavaScript array.

  Returns:
    the stroke style as a `FillStrokeStyle` object
  See Also:
    `setStrokeStyle(FillStrokeStyle)`, `setStrokeStyle(String)`, `CssColor`

### getTextAlign

    public final java.lang.String getTextAlign()

  Gets the current text align.

  Returns:
    the text align as a String
  See Also:
    `setTextAlign(TextAlign)`, `setTextAlign(String)`

### getTextBaseline

    public final java.lang.String getTextBaseline()

  Gets the current text baseline.

  Returns:
    the text baseline as a String
  See Also:
    `setTextBaseline(TextBaseline)`, `setTextBaseline(String)`

### isPointInPath

    public final boolean isPointInPath(double x,
                                       double y)

  Returns true if the given point is in the current path.

  Parameters:
    `x` - the x coordinate of the point to test.
    `y` - the y coordinate of the point to test.
  Returns:
    `true` if the given point is in the current path.

### lineTo

    public final void lineTo(double x,
                             double y)

  Adds a line from the current point to the point (x, y) to the current path.

  Parameters:
    `x` - the x coordinate of the line endpoint
    `y` - the y coordinate of the line endpoint

### measureText

    public final TextMetrics measureText(java.lang.String text)

  Returns the metrics for the given text.

  Parameters:
    `text` - the text to measure, as a String
  Returns:
    a `TextMetrics` object

### moveTo

    public final void moveTo(double x,
                             double y)

  Terminates the current path and sets the current path position to the point (x, y).

  Parameters:
    `x` - the x coordinate of the new position
    `y` - the y coordinate of the new position

### putImageData

    public final void putImageData(ImageData imagedata,
                                   double x,
                                   double y)

  Draws the given image data at the given screen position.

  Parameters:
    `imagedata` - an `ImageData` instance to be written to the screen
    `x` - the x coordinate of the upper-left corner at which to draw
    `y` - the y coordinate of the upper-left corner at which to draw

### quadraticCurveTo

    public final void quadraticCurveTo(double cpx,
                                       double cpy,
                                       double x,
                                       double y)

  Draws a quadratic Bézier curve from the current point to the point (x, y), with control point (cpx, cpy).

  Parameters:
    `cpx` - the x coordinate of the control point
    `cpy` - the y coordinate of the control point
    `x` - the x coordinate of the end point
    `y` - the y coordinate of the end point

### rect

    public final void rect(double x,
                           double y,
                           double w,
                           double h)

  Creates a new rectangular path.

  Parameters:
    `x` - the x coordinate of the rectangle's upper-left corner
    `y` - the y coordinate of the rectangle's upper-left corner
    `w` - the width of the rectangle
    `h` - the height of the rectangle

### restore

    public final void restore()

  Restores the context's state.

### rotate

    public final void rotate(double angle)

  Applies rotation to the current transform.

  Parameters:
    `angle` - the clockwise rotation angle, in radians

### save

    public final void save()

  Saves the context's state.

### scale

    public final void scale(double x,
                            double y)

  Applies scale to the current transform.

  Parameters:
    `x` - the scale factor along the x-axis
    `y` - the scale factor along the y-axis

### setFillStyle

    public final void setFillStyle(FillStrokeStyle fillStyle)

  Sets the context's fillStyle.

  Parameters:
    `fillStyle` - the fill style to set.
  See Also:
    `getFillStyle()`, `CssColor`

### setFillStyle

    public final void setFillStyle(java.lang.String fillStyleColor)

  Convenience method to set the context's fillStyle to a `CssColor`, specified in String form.

  Parameters:
    `fillStyleColor` - the color as a String
  See Also:
    `getFillStyle()`

### setFont

    public final void setFont(java.lang.String f)

  Sets the font.

  Parameters:
    `f` - the font name as a String
  See Also:
    `getFont()`

### setGlobalAlpha

    public final void setGlobalAlpha(double alpha)

  Sets the global alpha value.

  Parameters:
    `alpha` - the global alpha value as a double
  See Also:
    `getGlobalAlpha()`

### setGlobalCompositeOperation

    public final void setGlobalCompositeOperation(Context2d.Composite composite)

  Sets the global composite operation.

  Parameters:
    `composite` - a `Context2d.Composite` value
  See Also:
    `getGlobalCompositeOperation()`

### setGlobalCompositeOperation

    public final void setGlobalCompositeOperation(java.lang.String globalCompositeOperation)

  Sets the global composite operation.

  Parameters:
    `globalCompositeOperation` - the operation as a String
  See Also:
    `getGlobalCompositeOperation()`

### setLineCap

    public final void setLineCap(Context2d.LineCap lineCap)

  Sets the line-cap style.

  Parameters:
    `lineCap` - the line cap style as a `Context2d.LineCap` value
  See Also:
    `getLineCap()`

### setLineCap

    public final void setLineCap(java.lang.String lineCap)

  Sets the line-cap style.

  Parameters:
    `lineCap` - the line cap style as a String
  See Also:
    `getLineCap()`

### setLineJoin

    public final void setLineJoin(Context2d.LineJoin lineJoin)

  Sets the line-join style.

  Parameters:
    `lineJoin` - the line join style as a `Context2d.LineJoin` value
  See Also:
    `getLineJoin()`

### setLineJoin

    public final void setLineJoin(java.lang.String lineJoin)

  Sets the line-join style.

  Parameters:
    `lineJoin` - the ling join style as a String
  See Also:
    `getLineJoin()`

### setLineWidth

    public final void setLineWidth(double lineWidth)

  Sets the line-width.

  Parameters:
    `lineWidth` - the line width as a double
  See Also:
    `getMiterLimit()`, `getLineWidth()`

### setMiterLimit

    public final void setMiterLimit(double miterLimit)

  Sets the miter-limit.

  Parameters:
    `miterLimit` - the miter limit as a double
  See Also:
    `getMiterLimit()`

### setShadowBlur

    public final void setShadowBlur(double shadowBlur)

  Sets the shadow-blur.

  Parameters:
    `shadowBlur` - the amount of blur as a double
  See Also:
    `getShadowBlur()`

### setShadowColor

    public final void setShadowColor(java.lang.String shadowColor)

  Sets the shadow-color.

  Parameters:
    `shadowColor` - the shadow color as a String
  See Also:
    `getShadowColor()`

### setShadowOffsetX

    public final void setShadowOffsetX(double shadowOffsetX)

  Sets the x-shadow-offset.

  Parameters:
    `shadowOffsetX` - the x shadow offset
  See Also:
    `getShadowOffsetX()`, `getShadowOffsetY()`

### setShadowOffsetY

    public final void setShadowOffsetY(double shadowOffsetY)

  Sets the y-shadow-offset.

  Parameters:
    `shadowOffsetY` - the y shadow offset
  See Also:
    `getShadowOffsetX()`, `getShadowOffsetY()`

### setStrokeStyle

    public final void setStrokeStyle(FillStrokeStyle strokeStyle)

  Sets the context's stroke style.

  Parameters:
    `strokeStyle` - the stroke style to set
  See Also:
    `getStrokeStyle()`, `CssColor`

### setStrokeStyle

    public final void setStrokeStyle(java.lang.String strokeStyleColor)

  Convenience method to set the context's strokeStyle to a `CssColor`.

  Parameters:
    `strokeStyleColor` - the stroke color as a String
  See Also:
    `getStrokeStyle()`

### setTextAlign

    public final void setTextAlign(java.lang.String align)

  Sets the text alignment.

  Parameters:
    `align` - the alignment setting as a String
  See Also:
    `getTextAlign()`

### setTextAlign

    public final void setTextAlign(Context2d.TextAlign align)

  Sets the text alignment.

  Parameters:
    `align` - the alignment setting as a `Context2d.TextAlign` value
  See Also:
    `getTextAlign()`

### setTextBaseline

    public final void setTextBaseline(java.lang.String baseline)

  Sets the text baseline.

  Parameters:
    `baseline` - the baseline setting as a String
  See Also:
    `getTextBaseline()`

### setTextBaseline

    public final void setTextBaseline(Context2d.TextBaseline baseline)

  Sets the text baseline.

  Parameters:
    `baseline` - a the baseline setting as a `Context2d.TextBaseline` value
  See Also:
    `getTextBaseline()`

### setTransform

    public final void setTransform(double m11,
                                   double m12,
                                   double m21,
                                   double m22,
                                   double dx,
                                   double dy)

  Sets the 2D transformation matrix.

  Parameters:
    `m11` - the value at position (1, 1) of the matrix
    `m12` - the value at position (1, 2) of the matrix
    `m21` - the value at position (2, 1) of the matrix
    `m22` - the value at position (2, 2) of the matrix
    `dx` - the x translation value
    `dy` - the y translation value

### stroke

    public final void stroke()

  Draws the current path with the current stroke style.

### strokeRect

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

  Draws the outline of a rectangle with the current stroke style.

  Parameters:
    `x` - the x coordinate of the rectangle's upper-left corner
    `y` - the y coordinate of the rectangle's upper-left corner
    `w` - the width of the rectangle
    `h` - the height of the rectangle

### strokeText

    public final void strokeText(java.lang.String text,
                                 double x,
                                 double y)

  Draws the text outline.

  Parameters:
    `text` - the text as a String
    `x` - the x coordinate of the text position
    `y` - the y coordinate of the text position

### strokeText

    public final void strokeText(java.lang.String text,
                                 double x,
                                 double y,
                                 double maxWidth)

  Draws the text outline, squeezing the text into the given max width by compressing the font.

  Parameters:
    `text` - the text as a String
    `x` - the x coordinate of the text position
    `y` - the y coordinate of the text position
    `maxWidth` - the maximum width for the text

### transform

    public final void transform(double m11,
                                double m12,
                                double m21,
                                double m22,
                                double dx,
                                double dy)

  Multiplies the current transform by the given matrix.

  Parameters:
    `m11` - the value at position (1, 1) of the matrix
    `m12` - the value at position (1, 2) of the matrix
    `m21` - the value at position (2, 1) of the matrix
    `m22` - the value at position (2, 2) of the matrix
    `dx` - the x translation value
    `dy` - the y translation value

### translate

    public final void translate(double x,
                                double y)

  Applies a translation to the current transform.

  Parameters:
    `x` - the amount of translation along the x-axis
    `y` - the amount of translation along the y-axis

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