Image

@Js mixin Image

Graphical image. Images are loaded from a file using GraphicsEnv.image.

methods

h	Get the size height
isLoaded	Is this image completely loaded into memory for use.
mime	Image format based on file type
render	Render a new image with the given MIME type and size using the provided Graphics instance.
size	Get the natural size of this image.
uri	Unique uri key for this image in the GraphicsEnv cache.
w	Get the size width
write	Write image content to the given output stream, where encoding is based on `mime` type.

Slot Details

h

virtual Float h()

Get the size height

isLoaded

abstract Bool isLoaded()

Is this image completely loaded into memory for use. When a given uri is first accessed by GraphicsEnv.image it may be asynchronously loaded in the background and false is returned until load is complete.

mime

abstract MimeType mime()

Image format based on file type:

image/png
image/gif
image/jpeg
image/svg+xml

render

static Image render(MimeType mime, Size size, |Graphics| f)

Render a new image with the given MIME type and size using the provided Graphics instance. Throws UnsupportedErr if rendering is not supported in this env.

size

abstract Size size()

Get the natural size of this image. If the image has not been loaded yet, then return 0,0.

uri

abstract Uri uri()

Unique uri key for this image in the GraphicsEnv cache.

w

virtual Float w()

Get the size width

write

virtual Void write(OutStream out)

Write image content to the given output stream, where encoding is based on mime type. Throws UnsupportedErr if write is not supported in this env.