Documentation
¶
Index ¶
- Variables
- type HttpClient
- type ImageSource
- func (img *ImageSource) Error() error
- func (img *ImageSource) ImageOp(size image.Point) *paint.ImageOp
- func (img *ImageSource) IsNetworkImg() bool
- func (img *ImageSource) ScaleByRatio(ratio float32) (*paint.ImageOp, error)
- func (img *ImageSource) ScaleBySize(size image.Point) (*paint.ImageOp, error)
- func (img *ImageSource) Size() image.Point
- type ImageStyle
Constants ¶
This section is empty.
Variables ¶
var ( // Change this if you want to load larger images from the web. Default max size is 10M. MaxDownloadSize = 1024 * 1024 * 10 // Timeout for http request. DownloadTimeout = time.Second * 10 )
Functions ¶
This section is empty.
Types ¶
type HttpClient ¶ added in v0.2.0
type HttpClient struct {
// contains filtered or unexported fields
}
Because of network anti crawler policies applied by sites, we have to disguising out http client as browsers, see below link for details: https://req.cool/blog/supported-http-fingerprint-impersonation-to-bypass-anti-crawler-detection-effortlessly/
func (*HttpClient) Download ¶ added in v0.2.0
func (c *HttpClient) Download(location string) (string, io.ReadCloser, error)
type ImageSource ¶
type ImageSource struct {
// contains filtered or unexported fields
}
ImageSource wraps a local or remote image. Only jpeg and png format for is supported. When displaying, image scaled by the specified size and cached.
func ImageFromBuf ¶ added in v0.2.0
func ImageFromBuf(src []byte) *ImageSource
ImageFromBuf loads an image from bytes buffer.
func ImageFromFile ¶
func ImageFromFile(src string) *ImageSource
ImageFromFile load an image from local filesystem or from network.
func (*ImageSource) Error ¶ added in v0.2.0
func (img *ImageSource) Error() error
func (*ImageSource) ImageOp ¶
func (img *ImageSource) ImageOp(size image.Point) *paint.ImageOp
ImageOp scales the src image to make it fit within the constraint specified by size and convert it to Gio ImageOp. If size has zero value of image Point, image is not scaled.
func (*ImageSource) IsNetworkImg ¶ added in v0.2.0
func (img *ImageSource) IsNetworkImg() bool
IsNetworkImg check if this image is loaded/to be loaded from network.
func (*ImageSource) ScaleByRatio ¶
func (img *ImageSource) ScaleByRatio(ratio float32) (*paint.ImageOp, error)
func (*ImageSource) ScaleBySize ¶
func (*ImageSource) Size ¶
func (img *ImageSource) Size() image.Point
type ImageStyle ¶ added in v0.2.0
type ImageStyle struct {
//Size image.Point
Radius unit.Dp
Fit widget.Fit
Position layout.Direction
// contains filtered or unexported fields
}
ImageStyle is a widget displaying an image from an ImageSource. Styling parameters can be set after construction. Displayed size is specified by the max constraints of the widget.
func NewImage ¶ added in v0.2.0
func NewImage(src *ImageSource) *ImageStyle
func (*ImageStyle) Layout ¶ added in v0.2.0
func (img *ImageStyle) Layout(gtx layout.Context) layout.Dimensions
Source Files