hugo image_resource 代码
文件路径：/resources/images/image_resource.go
/ Copyright 2022 The Hugo Authors. All rights reserved.
/
/ Licensed under the Apache License, Version 2.0 (the "License");
/ you may not use this file except in compliance with the License.
/ You may obtain a copy of the License at
/ http://www.apache.org/licenses/LICENSE-2.0
/
/ Unless required by applicable law or agreed to in writing, software
/ distributed under the License is distributed on an "AS IS" BASIS,
/ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/ See the License for the specific language governing permissions and
/ limitations under the License.
package images
import (
"image"
"github.com/gohugoio/hugo/resources/images/exif"
"github.com/gohugoio/hugo/resources/resource"
)
/ ImageResource represents an image resource.
type ImageResource interface {
resource.Resource
ImageResourceOps
}
type ImageResourceOps interface {
/ Height returns the height of the Image.
Height() int
/ Width returns the width of the Image.
Width() int
/ Crop an image to match the given dimensions without resizing.
/ You must provide both width and height.
/ Use the anchor option to change the crop box anchor point.
/ {{ $image := $image.Crop "600x400" }}
Crop(spec string) (ImageResource, error)
Fill(spec string) (ImageResource, error)
Fit(spec string) (ImageResource, error)
Resize(spec string) (ImageResource, error)
/ Filter applies one or more filters to an Image.
/ {{ $image := $image.Filter (images.GaussianBlur 6) (images.Pixelate 8) }}
Filter(filters ...any) (ImageResource, error)
/ Exif returns an ExifInfo object containing Image metadata.
Exif() *exif.ExifInfo
/ Colors returns a slice of the most dominant colors in an image
/ using a simple histogram method.
Colors() ([]string, error)
/ Internal
DecodeImage() (image.Image, error)
}