From 3b17868560090756caf8b9b0f043ea163f2320e8 Mon Sep 17 00:00:00 2001 From: eleanor-park Date: Sun, 20 Oct 2024 12:44:15 -0400 Subject: changes --- .../imageEditor/imageToolUtils/BrushHandler.ts | 35 ++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 src/client/views/nodes/imageEditor/imageToolUtils/BrushHandler.ts (limited to 'src/client/views/nodes/imageEditor/imageToolUtils/BrushHandler.ts') diff --git a/src/client/views/nodes/imageEditor/imageToolUtils/BrushHandler.ts b/src/client/views/nodes/imageEditor/imageToolUtils/BrushHandler.ts new file mode 100644 index 000000000..7139bebc3 --- /dev/null +++ b/src/client/views/nodes/imageEditor/imageToolUtils/BrushHandler.ts @@ -0,0 +1,35 @@ +import { GenerativeFillMathHelpers } from '../imageEditorUtils/GenerativeFillMathHelpers'; +import { eraserColor } from '../imageEditorUtils/imageEditorConstants'; +import { Point } from '../imageEditorUtils/imageEditorInterfaces'; +import { points } from '@turf/turf'; + +export enum BrushType { + GEN_FILL, + CUT, +} + +export class BrushHandler { + static brushCircleOverlay = (x: number, y: number, brushRadius: number, ctx: CanvasRenderingContext2D, fillColor: string /* , erase: boolean */) => { + ctx.globalCompositeOperation = 'destination-out'; + ctx.fillStyle = fillColor; + ctx.shadowColor = eraserColor; + ctx.shadowBlur = 5; + ctx.beginPath(); + ctx.arc(x, y, brushRadius, 0, 2 * Math.PI); + ctx.fill(); + ctx.closePath(); + }; + + static createBrushPathOverlay = (startPoint: Point, endPoint: Point, brushRadius: number, ctx: CanvasRenderingContext2D, fillColor: string, brushType: BrushType) => { + const dist = GenerativeFillMathHelpers.distanceBetween(startPoint, endPoint); + const pts: Point[] = []; + for (let i = 0; i < dist; i += 5) { + const s = i / dist; + const x = startPoint.x * (1 - s) + endPoint.x * s; + const y = startPoint.y * (1 - s) + endPoint.y * s; + pts.push({ x: startPoint.x, y: startPoint.y }); + BrushHandler.brushCircleOverlay(x, y, brushRadius, ctx, fillColor); + } + return pts; + }; +} -- cgit v1.2.3-70-g09d2