org.pepstock.charba.client.utils

Class Utilities

java.lang.Object

org.pepstock.charba.client.utils.Utilities

public final class Utilities
extends Object

Sets of methods used as common utilities.

Author:

Andrea "Stock" Stocchero

Field Summary

Fields

Modifier and Type	Field and Description
static String[]	EMPTY_ARRAY_STRING Constant for EMPTY ARRAY string.
static String	EMPTY_STRING Constant for EMPTY string

Method Summary

Modifier and Type	Method and Description
static Style.Cursor	getCursorOfChart(IsChart isChart) Returns the cursor currently set into chart.
static String	toFont(FontStyle style, int size, String family) Builds the font string (shorthand property of CSS font) to use in the canvas object. The format is [font-style] [font-variant] [font-weight] [font-size] [font-family]. See here CSS specification.
static ImageElement	toImageElement(Image image) Creates a image element by image widget that displays the image at a given URL.
static ImageElement	toImageElement(Image image, int width, int height) Creates a image element by image widget that displays the image at a given URL, forcing the size.
static ImageElement	toImageElement(ImageResource image) Creates a image element by image resource which provides access to image data at runtime.
static ImageElement	toImageElement(ImageResource image, int width, int height) Creates a image element by image resource which provides access to image data at runtime, forcing the size.
static ImageElement	toImageElement(String url) Creates a image element by a data URL which is a URI scheme that provides a way to in-line data in a document, and it's commonly used to embed images in HTML and CSS.
static ImageElement	toImageElement(String url, int width, int height) Creates a image element by a data URL which is a URI scheme that provides a way to in-line data in a document, and it's commonly used to embed images in HTML and CSS, forcing the size.

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_STRING

public static final String EMPTY_STRING

Constant for EMPTY string

See Also:

Constant Field Values

EMPTY_ARRAY_STRING

public static final String[] EMPTY_ARRAY_STRING

Constant for EMPTY ARRAY string.

Method Detail

toFont

public static String toFont(FontStyle style,
                            int size,
                            String family)

Builds the font string (shorthand property of CSS font) to use in the canvas object.
The format is [font-style] [font-variant] [font-weight] [font-size] [font-family].
See here CSS specification.

Parameters:

style - font style to use

size - font size

family - font family

Returns:

the font string to use in the canvas object.

toImageElement

public static ImageElement toImageElement(String url)

Creates a image element by a data URL which is a URI scheme that provides a way to in-line data in a document, and it's commonly used to embed images in HTML and CSS.

Parameters:

url - a URI scheme that provides a way to in-line data

Returns:

a image element or null if argument is not consistent

toImageElement

public static ImageElement toImageElement(String url,
                                          int width,
                                          int height)

Creates a image element by a data URL which is a URI scheme that provides a way to in-line data in a document, and it's commonly used to embed images in HTML and CSS, forcing the size.

Parameters:

url - a URI scheme that provides a way to in-line data

width - width of image

height - height of image

Returns:

a image element or null if argument is not consistent

toImageElement

public static ImageElement toImageElement(ImageResource image)

Creates a image element by image resource which provides access to image data at runtime.

Parameters:

image - image resource instance

Returns:

a image element instance or null if argument is not consistent

toImageElement

public static ImageElement toImageElement(ImageResource image,
                                          int width,
                                          int height)

Creates a image element by image resource which provides access to image data at runtime, forcing the size.

Parameters:

image - image resource instance

width - width of image

height - height of image

Returns:

a image element or null if argument is not consistent

toImageElement

public static ImageElement toImageElement(Image image)

Creates a image element by image widget that displays the image at a given URL.

Parameters:

image - image widget instance

Returns:

a image element or null if argument is not consistent

toImageElement

public static ImageElement toImageElement(Image image,
                                          int width,
                                          int height)

Creates a image element by image widget that displays the image at a given URL, forcing the size.

Parameters:

image - image widget instance

width - width of image

height - height of image

Returns:

a image element or null if argument is not consistent

getCursorOfChart

public static Style.Cursor getCursorOfChart(IsChart isChart)

Returns the cursor currently set into chart.

Parameters:

isChart - chart instance

Returns:

the cursor currently set into chart. Default is Style.Cursor.DEFAULT.