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81 lines
1.7 KiB
Go
81 lines
1.7 KiB
Go
// Copyright 2022 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 diagrams
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import (
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"bytes"
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"html/template"
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"io"
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"strings"
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"github.com/bep/goat"
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"github.com/gohugoio/hugo/deps"
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"github.com/spf13/cast"
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)
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type SVGDiagram interface {
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// Wrapped returns the diagram as an SVG, including the <svg> container.
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Wrapped() template.HTML
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// Inner returns the inner markup of the SVG.
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// This allows for the <svg> container to be created manually.
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Inner() template.HTML
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// Width returns the width of the SVG.
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Width() int
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// Height returns the height of the SVG.
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Height() int
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}
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type goatDiagram struct {
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d goat.SVG
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}
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func (d goatDiagram) Inner() template.HTML {
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return template.HTML(d.d.Body)
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}
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func (d goatDiagram) Wrapped() template.HTML {
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return template.HTML(d.d.String())
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}
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func (d goatDiagram) Width() int {
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return d.d.Width
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}
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func (d goatDiagram) Height() int {
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return d.d.Height
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}
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type Diagrams struct {
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d *deps.Deps
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}
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func (d *Diagrams) Goat(v interface{}) SVGDiagram {
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var r io.Reader
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switch vv := v.(type) {
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case io.Reader:
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r = vv
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case []byte:
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r = bytes.NewReader(vv)
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default:
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r = strings.NewReader(cast.ToString(v))
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}
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return goatDiagram{
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d: goat.BuildSVG(r),
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}
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}
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