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feat(freehand): initialize freehand #2
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76 changes: 76 additions & 0 deletions
76
packages/drawnix/src/plugins/freehand/freehand.component.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| import { | ||
| PlaitBoard, | ||
| PlaitPluginElementContext, | ||
| OnContextChanged, | ||
| RectangleClient, | ||
| isSelectionMoving, | ||
| ACTIVE_STROKE_WIDTH, | ||
| } from '@plait/core'; | ||
| import { ActiveGenerator, CommonElementFlavour } from '@plait/common'; | ||
| import { Freehand } from './type'; | ||
| import { FreehandGenerator } from './freehand.generator'; | ||
|
|
||
| export class FreehandComponent | ||
| extends CommonElementFlavour<Freehand, PlaitBoard> | ||
| implements OnContextChanged<Freehand, PlaitBoard> | ||
| { | ||
| constructor() { | ||
| super(); | ||
| } | ||
|
|
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| activeGenerator!: ActiveGenerator<Freehand>; | ||
|
|
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| generator!: FreehandGenerator; | ||
|
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| initializeGenerator() { | ||
| this.activeGenerator = new ActiveGenerator<Freehand>(this.board, { | ||
| getRectangle: (element: Freehand) => { | ||
| return RectangleClient.getRectangleByPoints(element.points); | ||
| }, | ||
| getStrokeWidth: () => ACTIVE_STROKE_WIDTH, | ||
| getStrokeOpacity: () => 1, | ||
| hasResizeHandle: () => { | ||
| return !isSelectionMoving(this.board); | ||
| }, | ||
| }); | ||
| this.generator = new FreehandGenerator(this.board); | ||
| } | ||
|
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| initialize(): void { | ||
| super.initialize(); | ||
| this.initializeGenerator(); | ||
| this.generator.processDrawing(this.element, this.getElementG()); | ||
| } | ||
|
|
||
| onContextChanged( | ||
| value: PlaitPluginElementContext<Freehand, PlaitBoard>, | ||
| previous: PlaitPluginElementContext<Freehand, PlaitBoard> | ||
| ) { | ||
| if (value.element !== previous.element || value.hasThemeChanged) { | ||
| this.generator.processDrawing(this.element, this.getElementG()); | ||
| this.activeGenerator.processDrawing( | ||
| this.element, | ||
| PlaitBoard.getElementActiveHost(this.board), | ||
| { | ||
| selected: this.selected, | ||
| } | ||
| ); | ||
| } else { | ||
| const needUpdate = value.selected !== previous.selected; | ||
| if (needUpdate) { | ||
| this.activeGenerator.processDrawing( | ||
| this.element, | ||
| PlaitBoard.getElementActiveHost(this.board), | ||
| { | ||
| selected: this.selected, | ||
| } | ||
| ); | ||
| } | ||
| } | ||
| } | ||
|
|
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| destroy(): void { | ||
| super.destroy(); | ||
| this.activeGenerator?.destroy(); | ||
| } | ||
| } |
22 changes: 22 additions & 0 deletions
22
packages/drawnix/src/plugins/freehand/freehand.generator.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| import { Generator } from '@plait/common'; | ||
| import { PlaitBoard, setStrokeLinecap } from '@plait/core'; | ||
| import { Options } from 'roughjs/bin/core'; | ||
| import { DefaultFreehand, Freehand } from './type'; | ||
|
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| export interface FreehandData {} | ||
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| export class FreehandGenerator extends Generator<Freehand, FreehandData> { | ||
| protected draw( | ||
| element: Freehand, | ||
| data?: FreehandData | undefined | ||
| ): SVGGElement | undefined { | ||
| let option: Options = { ...DefaultFreehand }; | ||
| const g = PlaitBoard.getRoughSVG(this.board).curve(element.points, option); | ||
| setStrokeLinecap(g, 'round'); | ||
| return g; | ||
| } | ||
|
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| canDraw(element: Freehand, data: FreehandData): boolean { | ||
| return true; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| import { DEFAULT_COLOR, Point } from '@plait/core'; | ||
| import { PlaitCustomGeometry } from '@plait/draw'; | ||
|
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| export const DefaultFreehand = { | ||
| strokeColor: DEFAULT_COLOR, | ||
| strokeWidth: 4, | ||
| }; | ||
|
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| export enum FreehandShape { | ||
| nibPen = 'nibPen', | ||
| feltTipPen = 'feltTipPen', | ||
| artisticBrush = 'artisticBrush', | ||
| markerHighlight = 'markerHighlight', | ||
| } | ||
|
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| export const FREEHAND_TYPE = 'freehand'; | ||
|
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| export interface Freehand | ||
| extends PlaitCustomGeometry<typeof FREEHAND_TYPE, Point[], FreehandShape> {} | ||
|
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| export const Freehand = { | ||
| isFreehand: (value: any): value is Freehand => { | ||
| return value.type === FREEHAND_TYPE; | ||
| }, | ||
| }; |
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