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+import './GenerativeFill.scss';
+import React = require('react');
+import { useEffect, useRef, useState } from 'react';
+import { APISuccess, ImageUtility } from './generativeFillUtils/ImageHandler';
+import { BrushHandler } from './generativeFillUtils/BrushHandler';
+import { Box, IconButton, Slider, TextField } from '@mui/material';
+import { CursorData, Point } from './generativeFillUtils/generativeFillInterfaces';
+import { activeColor, canvasSize, eraserColor, freeformRenderSize, newCollectionSize, offsetDistanceY, offsetX } from './generativeFillUtils/generativeFillConstants';
+import { PointerHandler } from './generativeFillUtils/PointerHandler';
+import { BsEraser, BsX } from 'react-icons/bs';
+import { CiUndo, CiRedo } from 'react-icons/ci';
+import Buttons from './GenerativeFillButtons';
+import { MainView } from '../../MainView';
+import { Doc } from '../../../../fields/Doc';
+import { Networking } from '../../../Network';
+import { Utils } from '../../../../Utils';
+import { DocUtils, Docs } from '../../../documents/Documents';
+import { Cast, DocCast, NumCast } from '../../../../fields/Types';
+import { CollectionDockingView } from '../../collections/CollectionDockingView';
+import { OpenWhere, OpenWhereMod } from '../DocumentView';
+import { Oval } from 'react-loader-spinner';
+
+/**
+ * For images not 1024x1024 fill in the rest in solid black, or a
+ * reflected version of the image.
+ *
+ * add a branch from image directly checkbox
+ */
+
+/**
+ *
+ *
+ * CollectionDockingView.AddSplit(Doc.MakeCopy(DocCast(Doc.UserDoc().emptyPane)), OpenWhereMod.right);
+ * CollectionDockingView.AddSplit(newCollection,OpenWhere.inParent)
+ * mind mapping
+ * this.props.addDocTab();
+ */
+
+enum BrushStyle {
+ ADD,
+ SUBTRACT,
+ MARQUEE,
+}
+
+interface ImageEdit {
+ imgElement: HTMLImageElement;
+ parent: ImageEdit;
+ children: ImageEdit[];
+}
+
+interface GenerativeFillProps {
+ imageEditorOpen: boolean;
+ imageEditorSource: string;
+ imageRootDoc: Doc | undefined;
+ addDoc: ((doc: Doc | Doc[], annotationKey?: string) => boolean) | undefined;
+}
+
+const GenerativeFill = ({ imageEditorOpen, imageEditorSource, imageRootDoc, addDoc }: GenerativeFillProps) => {
+ const canvasRef = useRef<HTMLCanvasElement>(null);
+ const canvasBackgroundRef = useRef<HTMLCanvasElement>(null);
+ const drawingAreaRef = useRef<HTMLDivElement>(null);
+ const fileRef = useRef<HTMLInputElement>(null);
+ const [cursorData, setCursorData] = useState<CursorData>({
+ x: 0,
+ y: 0,
+ width: 150,
+ });
+ const [isBrushing, setIsBrushing] = useState(false);
+ const [canvasScale, setCanvasScale] = useState(0.5);
+ const [edits, setEdits] = useState<string[]>([]);
+ const [brushStyle, setBrushStyle] = useState<BrushStyle>(BrushStyle.ADD);
+ const [input, setInput] = useState('');
+ const [loading, setLoading] = useState(false);
+ const [saveLoading, setSaveLoading] = useState(false);
+ // the current image in the main canvas
+ const currImg = useRef<HTMLImageElement | null>(null);
+ // the unedited version of each generation (parent)
+ const originalImg = useRef<HTMLImageElement | null>(null);
+ // stores history of data urls
+ const undoStack = useRef<string[]>([]);
+ // stores redo stack
+ const redoStack = useRef<string[]>([]);
+
+ // early stage properly, likely will get rid of
+ const freeformPosition = useRef<number[]>([0, 0]);
+
+ // which urls were already saved to canvas
+ const savedSrcs = useRef<Set<string>>(new Set());
+
+ // references to keep track of tree structure
+ const newCollectionRef = useRef<Doc | null>(null);
+ const parentDoc = useRef<Doc | null>(null);
+ const childrenDocs = useRef<Doc[]>([]);
+ const addToExistingCollection = useRef<boolean>(false);
+
+ // Undo and Redo
+ const handleUndo = () => {
+ const ctx = ImageUtility.getCanvasContext(canvasRef);
+ if (!ctx || !currImg.current || !canvasRef.current) return;
+
+ const target = undoStack.current[undoStack.current.length - 1];
+ if (!target) {
+ ImageUtility.drawImgToCanvas(currImg.current, canvasRef);
+ } else {
+ redoStack.current = [...redoStack.current, canvasRef.current.toDataURL()];
+ const img = new Image();
+ img.src = target;
+ ImageUtility.drawImgToCanvas(img, canvasRef);
+ undoStack.current = undoStack.current.slice(0, -1);
+ }
+ };
+
+ const handleRedo = () => {
+ // TODO: handle undo as well
+ const target = redoStack.current[redoStack.current.length - 1];
+ if (!target) {
+ } else {
+ const img = new Image();
+ img.src = target;
+ ImageUtility.drawImgToCanvas(img, canvasRef);
+ redoStack.current = redoStack.current.slice(0, -1);
+ }
+ };
+
+ const handleReset = () => {
+ if (!canvasRef.current || !currImg.current) return;
+ const ctx = ImageUtility.getCanvasContext(canvasRef);
+ if (!ctx) return;
+ ctx.clearRect(0, 0, canvasSize, canvasSize);
+ undoStack.current = [];
+ redoStack.current = [];
+ ImageUtility.drawImgToCanvas(currImg.current, canvasRef, true);
+ };
+
+ // initiate brushing
+ const handlePointerDown = (e: React.PointerEvent) => {
+ const canvas = canvasRef.current;
+ if (!canvas) return;
+ const ctx = ImageUtility.getCanvasContext(canvasRef);
+ if (!ctx) return;
+
+ undoStack.current = [...undoStack.current, canvasRef.current.toDataURL()];
+ redoStack.current = [];
+
+ setIsBrushing(true);
+ const { x, y } = PointerHandler.getPointRelativeToElement(canvas, e, canvasScale);
+
+ BrushHandler.brushCircleOverlay(x, y, cursorData.width / 2 / canvasScale, ctx, eraserColor, brushStyle === BrushStyle.SUBTRACT);
+ };
+
+ // stop brushing, push to undo stack
+ const handlePointerUp = (e: React.PointerEvent) => {
+ const ctx = ImageUtility.getCanvasContext(canvasBackgroundRef);
+ if (!ctx) return;
+ if (!isBrushing) return;
+ setIsBrushing(false);
+ };
+
+ // handles brushing on pointer movement
+ useEffect(() => {
+ if (!isBrushing) return;
+ const canvas = canvasRef.current;
+ if (!canvas) return;
+ const ctx = ImageUtility.getCanvasContext(canvasRef);
+ if (!ctx) return;
+
+ const handlePointerMove = (e: PointerEvent) => {
+ const currPoint = PointerHandler.getPointRelativeToElement(canvas, e, canvasScale);
+ const lastPoint: Point = {
+ x: currPoint.x - e.movementX / canvasScale,
+ y: currPoint.y - e.movementY / canvasScale,
+ };
+ BrushHandler.createBrushPathOverlay(lastPoint, currPoint, cursorData.width / 2 / canvasScale, ctx, eraserColor, brushStyle === BrushStyle.SUBTRACT);
+ };
+
+ drawingAreaRef.current?.addEventListener('pointermove', handlePointerMove);
+ return () => {
+ drawingAreaRef.current?.removeEventListener('pointermove', handlePointerMove);
+ };
+ }, [isBrushing]);
+
+ // first load
+ useEffect(() => {
+ console.log('first load');
+ if (!imageEditorSource || imageEditorSource === '') return;
+ const img = new Image();
+ img.src = imageEditorSource;
+ ImageUtility.drawImgToCanvas(img, canvasRef);
+ currImg.current = img;
+ originalImg.current = img;
+ freeformPosition.current = [0, 0];
+
+ return () => {
+ console.log('cleanup');
+ newCollectionRef.current = null;
+ parentDoc.current = null;
+ childrenDocs.current = [];
+ currImg.current = null;
+ originalImg.current = null;
+ freeformPosition.current = [0, 0];
+ undoStack.current = [];
+ redoStack.current = [];
+ };
+ }, [canvasRef, imageEditorSource]);
+
+ // handles brush sizing
+ useEffect(() => {
+ const handleKeyPress = (e: KeyboardEvent) => {
+ if (e.key === 'ArrowUp') {
+ e.preventDefault();
+ e.stopPropagation();
+ setCursorData(data => ({ ...data, width: data.width + 5 }));
+ } else if (e.key === 'ArrowDown') {
+ e.preventDefault();
+ e.stopPropagation();
+ setCursorData(data => (data.width >= 20 ? { ...data, width: data.width - 5 } : data));
+ }
+ };
+ window.addEventListener('keydown', handleKeyPress);
+ return () => window.removeEventListener('keydown', handleKeyPress);
+ }, []);
+
+ // handle pinch zoom
+ useEffect(() => {
+ const handlePinch = (e: WheelEvent) => {
+ e.preventDefault();
+ e.stopPropagation();
+ const delta = e.deltaY;
+ const scaleFactor = delta > 0 ? 0.98 : 1.02; // Adjust the scale factor as per your requirement
+ setCanvasScale(prevScale => prevScale * scaleFactor);
+ };
+
+ drawingAreaRef.current?.addEventListener('wheel', handlePinch, {
+ passive: false,
+ });
+ return () => drawingAreaRef.current?.removeEventListener('wheel', handlePinch);
+ }, [drawingAreaRef]);
+
+ // updates the current position of the cursor
+ const updateCursorData = (e: React.PointerEvent) => {
+ const drawingArea = drawingAreaRef.current;
+ if (!drawingArea) return;
+ const { x, y } = PointerHandler.getPointRelativeToElement(drawingArea, e, 1);
+ setCursorData(data => ({
+ ...data,
+ x,
+ y,
+ }));
+ };
+
+ // Get AI Edit
+ const getEdit = async () => {
+ const img = currImg.current;
+ if (!img) return;
+ const canvas = canvasRef.current;
+ if (!canvas) return;
+ const ctx = ImageUtility.getCanvasContext(canvasRef);
+ if (!ctx) return;
+ setLoading(true);
+ // need to adjust later
+ try {
+ const maskBlob = await ImageUtility.canvasToBlob(canvas);
+ const imgBlob = await ImageUtility.canvasToBlob(ImageUtility.getCanvasImg(img));
+ const res = await ImageUtility.getEdit(imgBlob, maskBlob, input !== '' ? input + ' in the same style' : 'Fill in the image in the same style', 2);
+ // const res = await ImageUtility.mockGetEdit(img.src);
+
+ // create first image
+ if (!newCollectionRef.current) {
+ if (addToExistingCollection.current) {
+ }
+ if (!(originalImg.current && imageRootDoc)) return;
+ console.log('creating first image');
+ // create new collection and add it to the view
+ newCollectionRef.current = Docs.Create.FreeformDocument([], {
+ x: NumCast(imageRootDoc.x) + NumCast(imageRootDoc._width) + offsetX,
+ y: NumCast(imageRootDoc.y),
+ _width: newCollectionSize,
+ _height: newCollectionSize,
+ title: 'Image edit collection',
+ });
+ DocUtils.MakeLink(imageRootDoc, newCollectionRef.current, { link_relationship: 'Image Edit Version History', link_displayLine: false });
+ // add the doc to the main freeform
+ // addDoc?.(newCollectionRef.current);
+ await createNewImgDoc(originalImg.current, true);
+ } else {
+ parentDoc.current = childrenDocs.current[childrenDocs.current.length - 1];
+ childrenDocs.current = [];
+ }
+
+ originalImg.current = currImg.current;
+
+ const { urls } = res as APISuccess;
+ const image = new Image();
+ image.src = urls[0];
+ setEdits(urls);
+ ImageUtility.drawImgToCanvas(image, canvasRef);
+ currImg.current = image;
+ onSave();
+ freeformPosition.current[0] += 1;
+ freeformPosition.current[1] = 0;
+ } catch (err) {
+ console.log(err);
+ }
+ setLoading(false);
+ };
+
+ // adjusts all the img positions to be aligned
+ const adjustImgPositions = () => {
+ if (!parentDoc.current) return;
+ const startY = NumCast(parentDoc.current.y);
+ const len = childrenDocs.current.length;
+ let initialYPositions: number[] = [];
+ for (let i = 0; i < len; i++) {
+ initialYPositions.push(startY + i * offsetDistanceY);
+ }
+ childrenDocs.current.forEach((doc, i) => {
+ if (len % 2 === 1) {
+ doc.y = initialYPositions[i] - Math.floor(len / 2) * offsetDistanceY;
+ } else {
+ doc.y = initialYPositions[i] - (len / 2 - 1 / 2) * offsetDistanceY;
+ }
+ });
+ };
+
+ // creates a new image document and returns its reference
+ const createNewImgDoc = async (img: HTMLImageElement, firstDoc: boolean): Promise<Doc | undefined> => {
+ if (!newCollectionRef.current || !imageRootDoc) return;
+ const src = img.src;
+ const [result] = await Networking.PostToServer('/uploadRemoteImage', { sources: [src] });
+ const source = Utils.prepend(result.accessPaths.agnostic.client);
+
+ if (firstDoc) {
+ const x = 0;
+ const initialY = 0;
+ console.log('first doc');
+
+ const newImg = Docs.Create.ImageDocument(source, {
+ x: x,
+ y: initialY,
+ _height: freeformRenderSize,
+ _width: freeformRenderSize,
+ data_nativeWidth: result.nativeWidth,
+ data_nativeHeight: result.nativeHeight,
+ });
+
+ Doc.AddDocToList(newCollectionRef.current, undefined, newImg);
+ parentDoc.current = newImg;
+ return newImg;
+ } else {
+ if (!parentDoc.current) return;
+ const x = NumCast(parentDoc.current.x) + freeformRenderSize + offsetX;
+ // dummy position
+ console.log('creating child elements');
+ const initialY = 0;
+
+ const newImg = Docs.Create.ImageDocument(source, {
+ x: x,
+ y: initialY,
+ _height: freeformRenderSize,
+ _width: freeformRenderSize,
+ data_nativeWidth: result.nativeWidth,
+ data_nativeHeight: result.nativeHeight,
+ });
+
+ childrenDocs.current.push(newImg);
+ DocUtils.MakeLink(parentDoc.current, newImg, { link_relationship: 'Image Edit', link_displayLine: true });
+ adjustImgPositions();
+
+ Doc.AddDocToList(newCollectionRef.current, undefined, newImg);
+ return newImg;
+ }
+ };
+
+ // need to maybe call on every img click, not just when the save btn is clicked
+ const onSave = async () => {
+ setSaveLoading(true);
+ if (!currImg.current || !originalImg.current || !imageRootDoc) return;
+ try {
+ console.log('creating another image');
+ await createNewImgDoc(currImg.current, false);
+ } catch (err) {
+ console.log(err);
+ }
+ setSaveLoading(false);
+ };
+
+ const handleViewClose = () => {
+ if (newCollectionRef.current) {
+ newCollectionRef.current.fitContentOnce = true;
+ CollectionDockingView.AddSplit(newCollectionRef.current, OpenWhereMod.right);
+ }
+ MainView.Instance.setImageEditorOpen(false);
+ MainView.Instance.setImageEditorSource('');
+ setEdits([]);
+ };
+
+ return (
+ <div className="generativeFillContainer" style={{ display: imageEditorOpen ? 'flex' : 'none' }}>
+ <div className="generativeFillControls">
+ <h1>AI Image Editor</h1>
+ <div style={{ display: 'flex', alignItems: 'center', gap: '1.5rem' }}>
+ <Buttons canvasRef={canvasRef} currImg={currImg} getEdit={getEdit} loading={loading} onSave={onSave} onReset={handleReset} />
+ <IconButton onClick={handleViewClose}>
+ <BsX color={activeColor} />
+ </IconButton>
+ {saveLoading && (
+ <span style={{ height: '100%', display: 'flex', alignItems: 'center', gap: '8px' }}>
+ Saving image... <Oval height={20} width={20} color="#000000" visible={true} ariaLabel="oval-loading" secondaryColor="#ffffff89" strokeWidth={3} strokeWidthSecondary={3} />
+ </span>
+ )}
+ </div>
+ </div>
+ {/* Main canvas for editing */}
+ <div
+ className="drawingArea" // this only works if pointerevents: none is set on the custom pointer
+ ref={drawingAreaRef}
+ onPointerOver={updateCursorData}
+ onPointerMove={updateCursorData}
+ onPointerDown={handlePointerDown}
+ onPointerUp={handlePointerUp}>
+ <canvas ref={canvasRef} width={canvasSize} height={canvasSize} style={{ transform: `scale(${canvasScale})` }} />
+ <canvas ref={canvasBackgroundRef} width={canvasSize} height={canvasSize} style={{ transform: `scale(${canvasScale})` }} />
+ <div
+ className="pointer"
+ style={{
+ left: cursorData.x,
+ top: cursorData.y,
+ width: cursorData.width,
+ height: cursorData.width,
+ }}>
+ <div className="innerPointer"></div>
+ </div>
+ {/* Icons */}
+ <div className="iconContainer">
+ <IconButton
+ onClick={() => {
+ setBrushStyle(BrushStyle.ADD);
+ }}>
+ <BsEraser color={brushStyle === BrushStyle.ADD ? activeColor : 'inherit'} />
+ </IconButton>
+ {/* Undo and Redo */}
+ <IconButton
+ onPointerDown={e => {
+ e.stopPropagation();
+ handleUndo();
+ }}
+ onPointerUp={e => {
+ e.stopPropagation();
+ }}>
+ <CiUndo />
+ </IconButton>
+ <IconButton
+ onPointerDown={e => {
+ e.stopPropagation();
+ handleRedo();
+ }}
+ onPointerUp={e => {
+ e.stopPropagation();
+ }}>
+ <CiRedo />
+ </IconButton>
+ <Box
+ sx={{
+ height: 225,
+ width: '100%',
+ display: 'flex',
+ justifyContent: 'center',
+ }}>
+ <Slider
+ sx={{
+ '& input[type="range"]': {
+ WebkitAppearance: 'slider-vertical',
+ },
+ }}
+ orientation="vertical"
+ min={10}
+ max={500}
+ defaultValue={150}
+ onChange={(e, val) => {
+ setCursorData(prev => ({ ...prev, width: val as number }));
+ }}
+ />
+ </Box>
+ </div>
+ {/* Edits thumbnails*/}
+ <div className="editsBox">
+ {edits.map((edit, i) => (
+ <img
+ key={i}
+ width={100}
+ height={100}
+ src={edit}
+ onClick={async () => {
+ // if (savedSrcs.current.has(edit)) return;
+ const img = new Image();
+ img.src = edit;
+ ImageUtility.drawImgToCanvas(img, canvasRef);
+ currImg.current = img;
+ savedSrcs.current.add(edit);
+ await onSave();
+ }}
+ />
+ ))}
+ {/* Original img thumbnail */}
+ {edits.length > 0 && (
+ <div style={{ position: 'relative' }}>
+ <label
+ style={{
+ position: 'absolute',
+ bottom: 10,
+ left: 10,
+ color: '#ffffff',
+ fontSize: '0.8rem',
+ letterSpacing: '1px',
+ textTransform: 'uppercase',
+ }}>
+ Original
+ </label>
+ <img
+ width={100}
+ height={100}
+ src={originalImg.current?.src}
+ style={{ cursor: 'pointer' }}
+ onClick={() => {
+ if (!originalImg.current) return;
+ const img = new Image();
+ img.src = originalImg.current.src;
+ ImageUtility.drawImgToCanvas(img, canvasRef);
+ currImg.current = img;
+ }}
+ />
+ </div>
+ )}
+ </div>
+ </div>
+ <div>
+ <TextField
+ value={input}
+ onChange={e => setInput(e.target.value)}
+ disabled={isBrushing}
+ type="text"
+ label="Prompt"
+ placeholder="Prompt..."
+ InputLabelProps={{ style: { fontSize: '16px' } }}
+ inputProps={{ style: { fontSize: '16px' } }}
+ sx={{
+ backgroundColor: '#ffffff',
+ position: 'absolute',
+ bottom: '16px',
+ transform: 'translateX(calc(50vw - 50%))',
+ width: 'calc(100vw - 64px)',
+ }}
+ />
+ </div>
+ </div>
+ );
+};
+
+export default GenerativeFill;