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import { GenerativeFillMathHelpers } from './GenerativeFillMathHelpers';
import { eraserColor } from './imageEditorConstants';
import { Point } from './imageEditorInterfaces';
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) => {
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;
};
}
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