Changes mask to diagonal line pattern

frontend/src/features/canvas/IAICanvasMaskCompositer.tsx

@@ -1,13 +1,18 @@
 import { createSelector } from '@reduxjs/toolkit';
 import { useAppSelector } from 'app/store';
 import { RectConfig } from 'konva/lib/shapes/Rect';
+import _ from 'lodash';
 import { Rect } from 'react-konva';
 import {
   currentCanvasSelector,
   InpaintingCanvasState,
   OutpaintingCanvasState,
 } from './canvasSlice';
+import maskPatternImage from 'assets/images/mask_pattern2.png';
+
 import { rgbaColorToString } from './util/colorToString';
+import { useCallback, useEffect, useRef, useState } from 'react';
+import Konva from 'konva';
 
 export const canvasMaskCompositerSelector = createSelector(
   currentCanvasSelector,
@@ -20,6 +25,7 @@ export const canvasMaskCompositerSelector = createSelector(
       stageDimensions,
       stageScale,
       maskColorString: rgbaColorToString(maskColor),
+      maskOpacity: maskColor.a,
     };
   }
 );
@@ -29,18 +35,59 @@ type IAICanvasMaskCompositerProps = RectConfig;
 const IAICanvasMaskCompositer = (props: IAICanvasMaskCompositerProps) => {
   const { ...rest } = props;
 
-  const { maskColorString, stageCoordinates, stageDimensions, stageScale } =
-    useAppSelector(canvasMaskCompositerSelector);
+  const {
+    maskColorString,
+    maskOpacity,
+    stageCoordinates,
+    stageDimensions,
+    stageScale,
+  } = useAppSelector(canvasMaskCompositerSelector);
+
+  const [fillPatternImage, setFillPatternImage] =
+    useState<HTMLImageElement | null>(null);
+
+  const [offset, setOffset] = useState<number>(0);
+
+  const rectRef = useRef<Konva.Rect>(null);
+  const incrementOffset = useCallback(() => {
+    setOffset(offset + 1);
+    setTimeout(incrementOffset, 500);
+    console.log('toggle');
+    console.log('incrementing');
+  }, [offset]);
+
+  useEffect(() => {
+    if (fillPatternImage) return;
+    const image = new Image();
+
+    image.onload = () => {
+      setFillPatternImage(image);
+    };
+
+    image.src = maskPatternImage;
+  }, [fillPatternImage]);
+
+  useEffect(() => {
+    const timer = setInterval(() => setOffset((i) => (i + 1) % 6), 100);
+    return () => clearInterval(timer);
+  }, []);
+
+  if (!fillPatternImage) return null;
 
   return (
     <Rect
+      ref={rectRef}
       offsetX={stageCoordinates.x / stageScale}
       offsetY={stageCoordinates.y / stageScale}
       height={stageDimensions.height / stageScale}
       width={stageDimensions.width / stageScale}
-      fill={maskColorString}
+      fillPatternImage={fillPatternImage}
+      fillPatternOffsetY={offset}
+      fillPatternRepeat={'repeat'}
+      fillPatternScale={{ x: 1 / stageScale, y: 1 / stageScale }}
+      listening={true}
+      opacity={maskOpacity}
       globalCompositeOperation={'source-in'}
-      listening={false}
       {...rest}
     />
   );