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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| import React from 'react' | ||
|
|
||
| const tryIt = (text, fontSize = undefined) => { | ||
| const el = document.createElement('h5') | ||
| el.style.display = 'none' | ||
| const span = document.createElement('span') | ||
| if (fontSize) | ||
| span.style.fontSize = fontSize | ||
| el.appendChild(span) | ||
| document.body.appendChild(el) | ||
| const font1 = getComputedStyle(span).font | ||
| el.remove() | ||
| const cnv1 = document.createElement('canvas') | ||
| const ctx1 = cnv1.getContext('2d') | ||
| ctx1.font = font1 | ||
| return ctx1.measureText(text).width | ||
| } | ||
|
|
||
| export default class FitText extends React.Component { | ||
| state = {} | ||
|
|
||
| constructor(props) { | ||
| super(props) | ||
| } | ||
|
|
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| render() { | ||
| let { maxWidth, shrink } = this.props | ||
| let text = this.props.text | ||
|
|
||
| let fontSize | ||
| let width = tryIt(text) | ||
| if (width > maxWidth) { | ||
| fontSize = '90%' | ||
| } | ||
| width = tryIt(text, fontSize) | ||
| if (width > maxWidth) { | ||
| fontSize = '85%' | ||
| } | ||
| width = tryIt(text, fontSize) | ||
| if (width > maxWidth) { | ||
| fontSize = '80%' | ||
| for (let i = 0; i < 10; ++i) { | ||
| width = tryIt(text, fontSize) | ||
| if (width > maxWidth) { | ||
| if (shrink) | ||
| text = this.props.text | ||
| text = text.substring(0, text.length - (2 * i)) + '...' | ||
| } else { | ||
| break | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return <span ref={this.span} style={{ fontSize, }}> | ||
| {text}</span> | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| import React from 'react' | ||
|
|
||
| const MAX_SCALE = 6 | ||
|
|
||
| export default class FitText extends React.Component { | ||
| state = { scale: 0 } | ||
|
|
||
| constructor(props) { | ||
| super(props) | ||
| this.span = React.createRef() | ||
| } | ||
|
|
||
| onRender = () => { | ||
| console.timeEnd('R1') | ||
| const { current } = this.span | ||
| if (!current || this.state.scaled) return | ||
| const width = current.offsetWidth | ||
| const { maxWidth } = this.props | ||
| if (width > maxWidth) { | ||
| const { scale } = this.state | ||
| if (scale === MAX_SCALE) { | ||
| this.setState({ | ||
| scaled: true | ||
| }) | ||
| return | ||
| } | ||
| this.setState({ | ||
| scale: scale + 1 | ||
| }) | ||
| } else { | ||
| this.setState({ | ||
| scaled: true | ||
| }) | ||
| } | ||
| } | ||
|
|
||
| render() { | ||
| let { text, maxWidth, shrink, shrink2 } = this.props | ||
| const { scale } = this.state | ||
|
|
||
| let fontSize | ||
| if (scale === 1) { | ||
| fontSize = '90%' | ||
| } else if (scale === 2) { | ||
| fontSize = '85%' | ||
| } else if (scale >= 3) { | ||
| fontSize = '80%' | ||
| if (shrink) | ||
| text = text.substring(0, shrink - (5 * (scale - 3))) + '...' | ||
| } | ||
|
|
||
| return <span ref={this.span} style={{ fontSize, }}> | ||
| <img style={{ display: 'none' }} src={Math.random().toString()} onLoad={this.onRender} onError={this.onRender} /> | ||
| {text}</span> | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -8,4 +8,13 @@ | |
| .button { | ||
| margin-bottom: 0px; | ||
| } | ||
|
|
||
| h4 { | ||
| display: inline-block; | ||
| } | ||
| a { | ||
| h4 { | ||
| text-decoration: underline; | ||
| } | ||
| } | ||
| } | ||
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