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Merge pull request #172 from lad-tech/feat/169-custom-color-and-multi…
…ple-lines feat(chart): custom colors and multiply lines #169
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| import {PathProps, Skia, SkiaDefaultProps} from '@shopify/react-native-skia'; | ||
| import {interpolateColor, useDerivedValue} from 'react-native-reanimated'; | ||
|
|
||
| import {IChartTransition, ISharedChartState} from '../types'; | ||
| import {IPeriodsWithPaths} from '../utils'; | ||
|
|
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| import Line from './Line'; | ||
|
|
||
| interface IChartProps | ||
| extends Omit<SkiaDefaultProps<PathProps, 'start' | 'end'>, 'path'> { | ||
| periodsWithPaths: IPeriodsWithPaths; | ||
| index: number; | ||
| width: number; | ||
| transition: IChartTransition; | ||
| state: ISharedChartState; | ||
| lineColors?: string[] | undefined; | ||
| } | ||
|
|
||
| export const LineOfPeriod = ({ | ||
| periodsWithPaths, | ||
| index, | ||
| width, | ||
| transition, | ||
| state, | ||
| }: IChartProps) => { | ||
| const chartPath = useDerivedValue(() => { | ||
| const {current, next} = state.value; | ||
|
|
||
| const start = | ||
| periodsWithPaths[current]?.lines[index]?.path ?? Skia.Path.Make(); | ||
| const end = periodsWithPaths[next]?.lines[index]?.path ?? Skia.Path.Make(); | ||
|
|
||
| if (end.isInterpolatable(start)) { | ||
| return end.interpolate(start, transition.value)!; | ||
| } | ||
|
|
||
| return end; | ||
| }); | ||
|
|
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| const colors = useDerivedValue(() => { | ||
| const {current, next} = state.value; | ||
| const start = periodsWithPaths[current]?.lines[index]?.colors ?? []; | ||
| const end = periodsWithPaths[next]?.lines[index]?.colors ?? []; | ||
|
|
||
| return end.map((endColor, i) => | ||
| interpolateColor( | ||
| transition.value, | ||
| [0, 1], | ||
| [start[i] ?? endColor, endColor], | ||
| ), | ||
| ); | ||
| }); | ||
|
|
||
| return <Line colors={colors} width={width} chartPath={chartPath} />; | ||
| }; | ||
|
|
||
| export default LineOfPeriod; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| import {SkPath} from '@shopify/react-native-skia'; | ||
| import {useDerivedValue} from 'react-native-reanimated'; | ||
|
|
||
| import {IPeriodsWithPaths} from '../utils'; | ||
| import {IChartTransition, ISharedChartState} from '../types'; | ||
|
|
||
| import LineOfPeriod from './LineOfPeriod'; | ||
|
|
||
| export interface ILine { | ||
| name?: string | undefined; | ||
| path: SkPath; | ||
| colors?: string[] | undefined; | ||
| } | ||
|
|
||
| interface ILinesProps { | ||
| periodsWithPaths: IPeriodsWithPaths; | ||
| width: number; | ||
| transition: IChartTransition; | ||
| state: ISharedChartState; | ||
| } | ||
|
|
||
| export const Lines = ({ | ||
| periodsWithPaths, | ||
| width, | ||
| state, | ||
| transition, | ||
| }: ILinesProps) => { | ||
| const lines = useDerivedValue(() => { | ||
| const {next} = state.value; | ||
|
|
||
| const end = periodsWithPaths[next]?.lines ?? []; | ||
|
|
||
| return end; | ||
| }); | ||
|
|
||
| return ( | ||
| <> | ||
| {lines.value.map(({colors}, index) => ( | ||
| <LineOfPeriod | ||
| key={index} | ||
| index={index} | ||
| periodsWithPaths={periodsWithPaths} | ||
| width={width} | ||
| lineColors={colors} | ||
| state={state} | ||
| transition={transition} | ||
| /> | ||
| ))} | ||
| </> | ||
| ); | ||
| }; |
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