mirror of
https://github.com/gohugoio/hugo.git
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f9978ed164
This commit pulls most of the image related logic into its own package, to make it easier to reason about and extend.
This is also a rewrite of the transformation logic used in Hugo Pipes, mostly to allow constructs like the one below:
{{ ($myimg | fingerprint ).Width }}
Fixes #5903
Fixes #6234
Fixes #6266
126 lines
3.2 KiB
Go
126 lines
3.2 KiB
Go
// Copyright 2019 The Hugo Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package images
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import (
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"fmt"
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"strings"
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"testing"
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qt "github.com/frankban/quicktest"
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)
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func TestDecodeConfig(t *testing.T) {
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c := qt.New(t)
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m := map[string]interface{}{
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"quality": 42,
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"resampleFilter": "NearestNeighbor",
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"anchor": "topLeft",
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}
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imaging, err := DecodeConfig(m)
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c.Assert(err, qt.IsNil)
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c.Assert(imaging.Quality, qt.Equals, 42)
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c.Assert(imaging.ResampleFilter, qt.Equals, "nearestneighbor")
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c.Assert(imaging.Anchor, qt.Equals, "topleft")
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m = map[string]interface{}{}
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imaging, err = DecodeConfig(m)
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c.Assert(err, qt.IsNil)
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c.Assert(imaging.Quality, qt.Equals, defaultJPEGQuality)
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c.Assert(imaging.ResampleFilter, qt.Equals, "box")
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c.Assert(imaging.Anchor, qt.Equals, "smart")
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_, err = DecodeConfig(map[string]interface{}{
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"quality": 123,
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})
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c.Assert(err, qt.Not(qt.IsNil))
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_, err = DecodeConfig(map[string]interface{}{
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"resampleFilter": "asdf",
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})
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c.Assert(err, qt.Not(qt.IsNil))
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_, err = DecodeConfig(map[string]interface{}{
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"anchor": "asdf",
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})
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c.Assert(err, qt.Not(qt.IsNil))
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imaging, err = DecodeConfig(map[string]interface{}{
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"anchor": "Smart",
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})
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c.Assert(err, qt.IsNil)
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c.Assert(imaging.Anchor, qt.Equals, "smart")
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}
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func TestDecodeImageConfig(t *testing.T) {
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for i, this := range []struct {
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in string
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expect interface{}
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}{
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{"300x400", newImageConfig(300, 400, 0, 0, "", "")},
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{"100x200 bottomRight", newImageConfig(100, 200, 0, 0, "", "BottomRight")},
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{"10x20 topleft Lanczos", newImageConfig(10, 20, 0, 0, "Lanczos", "topleft")},
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{"linear left 10x r180", newImageConfig(10, 0, 0, 180, "linear", "left")},
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{"x20 riGht Cosine q95", newImageConfig(0, 20, 95, 0, "cosine", "right")},
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{"", false},
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{"foo", false},
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} {
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result, err := DecodeImageConfig("resize", this.in, Imaging{})
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if b, ok := this.expect.(bool); ok && !b {
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if err == nil {
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t.Errorf("[%d] parseImageConfig didn't return an expected error", i)
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}
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} else {
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if err != nil {
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t.Fatalf("[%d] err: %s", i, err)
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}
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if fmt.Sprint(result) != fmt.Sprint(this.expect) {
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t.Fatalf("[%d] got\n%v\n but expected\n%v", i, result, this.expect)
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}
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}
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}
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}
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func newImageConfig(width, height, quality, rotate int, filter, anchor string) ImageConfig {
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var c ImageConfig
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c.Action = "resize"
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c.Width = width
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c.Height = height
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c.Quality = quality
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c.Rotate = rotate
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if filter != "" {
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filter = strings.ToLower(filter)
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if v, ok := imageFilters[filter]; ok {
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c.Filter = v
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c.FilterStr = filter
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}
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}
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if anchor != "" {
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anchor = strings.ToLower(anchor)
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if v, ok := anchorPositions[anchor]; ok {
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c.Anchor = v
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c.AnchorStr = anchor
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}
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}
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return c
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}
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