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Added background opacity props #163

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Merged
Hermanya merged 2 commits into from
Sep 22, 2019
+14 −3
Merged

Added background opacity props #163

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5a354eb
added background opacity props
cleybertandre Sep 20, 2019
24e7895
updated README: added new opacity options 'backgroundGradientFromOpac…
cleybertandre Sep 20, 2019
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10 changes: 9 additions & 1 deletion README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -69,7 +69,9 @@ Define a chart style object with following properies as such:
```js
const chartConfig = {
backgroundGradientFrom: '#1E2923',
backgroundGradientFromOpacity: 0,
backgroundGradientTo: '#08130D',
backgroundGradientToOpacity: 0.5,
color: (opacity = 1) => `rgba(26, 255, 146, ${opacity})`,
strokeWidth: 2 // optional, default 3
}
Expand All @@ -78,7 +80,9 @@ const chartConfig = {
| Property | Type | Description |
| ------------- |-------------| -----|
| backgroundGradientFrom | string | Defines the first color in the linear gradient of a chart's background |
| backgroundGradientFromOpacity | Number | Defines the first color opacity in the linear gradient of a chart's background |
| backgroundGradientTo | string | Defines the second color in the linear gradient of a chart's background |
| backgroundGradientToOpacity | Number | Defines the second color opacity in the linear gradient of a chart's background |
| color | function => string | Defines the base color function that is used to calculate colors of labels and sectors used in a chart |
| strokeWidth | Number | Defines the base stroke width in a chart |

Expand Down Expand Up @@ -373,8 +377,12 @@ Render definitions of background and shadow gradients
height: Number,
// first color of background gradient
backgroundGradientFrom: String,
// first color opacity of background gradient (0 - 1.0)
backgroundGradientFromOpacity: Number,
// second color of background gradient
backgroundGradientTo: String
backgroundGradientTo: String,
// second color opacity of background gradient (0 - 1.0)
backgroundGradientToOpacity: Number,
}
```

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7 changes: 5 additions & 2 deletions src/abstract-chart.js
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Expand Up @@ -189,6 +189,9 @@ class AbstractChart extends Component {

renderDefs = config => {
const {width, height, backgroundGradientFrom, backgroundGradientTo} = config
const fromOpacity = config.hasOwnProperty('backgroundGradientFromOpacity') ? config.backgroundGradientFromOpacity : 1.0;
const toOpacity = config.hasOwnProperty('backgroundGradientToOpacity') ? config.backgroundGradientToOpacity : 1.0;

return (
<Defs>
<LinearGradient
Expand All @@ -198,8 +201,8 @@ class AbstractChart extends Component {
x2={width}
y2={0}
>
<Stop offset="0" stopColor={backgroundGradientFrom} />
<Stop offset="1" stopColor={backgroundGradientTo} />
<Stop offset="0" stopColor={backgroundGradientFrom} stopOpacity={fromOpacity} />
<Stop offset="1" stopColor={backgroundGradientTo} stopOpacity={toOpacity} />
</LinearGradient>
<LinearGradient
id="fillShadowGradient"
Expand Down