Feat(canvas): Add Lasso Tool with Freehand and Polygon modes

invokeai/frontend/web/public/locales/en.json

@@ -675,6 +675,10 @@
                 "title": "Rect Tool",
                 "desc": "Select the rect tool."
             },
+            "selectLassoTool": {
+                "title": "Lasso Tool",
+                "desc": "Select the lasso tool."
+            },
             "selectViewTool": {
                 "title": "View Tool",
                 "desc": "Select the view tool."
@@ -2641,10 +2645,16 @@
             "radial": "Radial",
             "clip": "Clip Gradient"
         },
+        "lasso": {
+            "freehand": "Freehand",
+            "polygon": "Polygon",
+            "polygonHint": "Click to add points, click the first point to close."
+        },
         "tool": {
             "brush": "Brush",
             "eraser": "Eraser",
             "rectangle": "Rectangle",
+            "lasso": "Lasso",
             "gradient": "Gradient",
             "bbox": "Bbox",
             "move": "Move",

invokeai/frontend/web/src/features/controlLayers/components/Tool/ToolChooser.tsx

@@ -3,6 +3,7 @@ import { ToolBboxButton } from 'features/controlLayers/components/Tool/ToolBboxB
 import { ToolBrushButton } from 'features/controlLayers/components/Tool/ToolBrushButton';
 import { ToolColorPickerButton } from 'features/controlLayers/components/Tool/ToolColorPickerButton';
 import { ToolGradientButton } from 'features/controlLayers/components/Tool/ToolGradientButton';
+import { ToolLassoButton } from 'features/controlLayers/components/Tool/ToolLassoButton';
 import { ToolMoveButton } from 'features/controlLayers/components/Tool/ToolMoveButton';
 import { ToolRectButton } from 'features/controlLayers/components/Tool/ToolRectButton';
 import { ToolTextButton } from 'features/controlLayers/components/Tool/ToolTextButton';
@@ -20,6 +21,7 @@ export const ToolChooser: React.FC = () => {
         <ToolRectButton />
         <ToolGradientButton />
         <ToolTextButton />
+        <ToolLassoButton />
         <ToolMoveButton />
         <ToolViewButton />
         <ToolBboxButton />

invokeai/frontend/web/src/features/controlLayers/components/Tool/ToolLassoButton.tsx

@@ -0,0 +1,34 @@
+import { IconButton, Tooltip } from '@invoke-ai/ui-library';
+import { useSelectTool, useToolIsSelected } from 'features/controlLayers/components/Tool/hooks';
+import { useRegisteredHotkeys } from 'features/system/components/HotkeysModal/useHotkeyData';
+import { memo } from 'react';
+import { useTranslation } from 'react-i18next';
+import { PiLassoBold } from 'react-icons/pi';
+
+export const ToolLassoButton = memo(() => {
+  const { t } = useTranslation();
+  const isSelected = useToolIsSelected('lasso');
+  const selectLasso = useSelectTool('lasso');
+
+  useRegisteredHotkeys({
+    id: 'selectLassoTool',
+    category: 'canvas',
+    callback: selectLasso,
+    options: { enabled: !isSelected },
+    dependencies: [isSelected, selectLasso],
+  });
+
+  return (
+    <Tooltip label={`${t('controlLayers.tool.lasso', { defaultValue: 'Lasso' })} (L)`} placement="end">
+      <IconButton
+        aria-label={`${t('controlLayers.tool.lasso', { defaultValue: 'Lasso' })} (L)`}
+        icon={<PiLassoBold />}
+        colorScheme={isSelected ? 'invokeBlue' : 'base'}
+        variant="solid"
+        onClick={selectLasso}
+      />
+    </Tooltip>
+  );
+});
+
+ToolLassoButton.displayName = 'ToolLassoButton';

invokeai/frontend/web/src/features/controlLayers/components/Tool/ToolLassoModeToggle.tsx

@@ -0,0 +1,47 @@
+import { ButtonGroup, IconButton, Tooltip } from '@invoke-ai/ui-library';
+import { useAppDispatch, useAppSelector } from 'app/store/storeHooks';
+import { selectLassoMode, settingsLassoModeChanged } from 'features/controlLayers/store/canvasSettingsSlice';
+import { memo, useCallback } from 'react';
+import { useTranslation } from 'react-i18next';
+import { PiPolygonBold, PiScribbleLoopBold } from 'react-icons/pi';
+
+export const ToolLassoModeToggle = memo(() => {
+  const { t } = useTranslation();
+  const dispatch = useAppDispatch();
+  const lassoMode = useAppSelector(selectLassoMode);
+
+  const setFreehand = useCallback(() => {
+    dispatch(settingsLassoModeChanged('freehand'));
+  }, [dispatch]);
+
+  const setPolygon = useCallback(() => {
+    dispatch(settingsLassoModeChanged('polygon'));
+  }, [dispatch]);
+
+  return (
+    <ButtonGroup isAttached size="sm">
+      <Tooltip label={t('controlLayers.lasso.freehand', { defaultValue: 'Freehand' })}>
+        <IconButton
+          aria-label={t('controlLayers.lasso.freehand', { defaultValue: 'Freehand' })}
+          icon={<PiScribbleLoopBold size={16} />}
+          colorScheme={lassoMode === 'freehand' ? 'invokeBlue' : 'base'}
+          variant="solid"
+          onClick={setFreehand}
+        />
+      </Tooltip>
+      <Tooltip label={t('controlLayers.lasso.polygon', { defaultValue: 'Polygon' })}>
+        <IconButton
+          aria-label={t('controlLayers.lasso.polygonHint', {
+            defaultValue: 'Click to add points, click the first point to close.',
+          })}
+          icon={<PiPolygonBold size={16} />}
+          colorScheme={lassoMode === 'polygon' ? 'invokeBlue' : 'base'}
+          variant="solid"
+          onClick={setPolygon}
+        />
+      </Tooltip>
+    </ButtonGroup>
+  );
+});
+
+ToolLassoModeToggle.displayName = 'ToolLassoModeToggle';

invokeai/frontend/web/src/features/controlLayers/components/Toolbar/CanvasToolbar.tsx

@@ -5,6 +5,7 @@ import { useToolIsSelected } from 'features/controlLayers/components/Tool/hooks'
 import { ToolFillColorPicker } from 'features/controlLayers/components/Tool/ToolFillColorPicker';
 import { ToolGradientClipToggle } from 'features/controlLayers/components/Tool/ToolGradientClipToggle';
 import { ToolGradientModeToggle } from 'features/controlLayers/components/Tool/ToolGradientModeToggle';
+import { ToolLassoModeToggle } from 'features/controlLayers/components/Tool/ToolLassoModeToggle';
 import { ToolOptionsRowContainer } from 'features/controlLayers/components/Tool/ToolOptionsRowContainer';
 import { ToolWidthPicker } from 'features/controlLayers/components/Tool/ToolWidthPicker';
 import { CanvasToolbarFitBboxToLayersButton } from 'features/controlLayers/components/Toolbar/CanvasToolbarFitBboxToLayersButton';
@@ -31,6 +32,7 @@ export const CanvasToolbar = memo(() => {
   const isBrushSelected = useToolIsSelected('brush');
   const isEraserSelected = useToolIsSelected('eraser');
   const isTextSelected = useToolIsSelected('text');
+  const isLassoSelected = useToolIsSelected('lasso');
   const isGradientSelected = useToolIsSelected('gradient');
   const showToolWithPicker = useMemo(() => {
     return !isTextSelected && (isBrushSelected || isEraserSelected);
@@ -57,6 +59,11 @@ export const CanvasToolbar = memo(() => {
             <ToolGradientModeToggle />
           </Box>
         )}
+        {isLassoSelected && (
+          <Box ms={2} mt="-2px" display="flex" alignItems="center" gap={2}>
+            <ToolLassoModeToggle />
+          </Box>
+        )}
         {isTextSelected ? <TextToolOptions /> : showToolWithPicker && <ToolWidthPicker />}
       </ToolOptionsRowContainer>
       <Flex alignItems="center" h="full">

invokeai/frontend/web/src/features/controlLayers/konva/CanvasEntity/CanvasEntityBufferObjectRenderer.ts

@@ -8,6 +8,7 @@ import { CanvasObjectEraserLine } from 'features/controlLayers/konva/CanvasObjec
 import { CanvasObjectEraserLineWithPressure } from 'features/controlLayers/konva/CanvasObject/CanvasObjectEraserLineWithPressure';
 import { CanvasObjectGradient } from 'features/controlLayers/konva/CanvasObject/CanvasObjectGradient';
 import { CanvasObjectImage } from 'features/controlLayers/konva/CanvasObject/CanvasObjectImage';
+import { CanvasObjectLasso } from 'features/controlLayers/konva/CanvasObject/CanvasObjectLasso';
 import { CanvasObjectRect } from 'features/controlLayers/konva/CanvasObject/CanvasObjectRect';
 import type { AnyObjectRenderer, AnyObjectState } from 'features/controlLayers/konva/CanvasObject/types';
 import { getPrefixedId } from 'features/controlLayers/konva/util';
@@ -152,6 +153,15 @@ export class CanvasEntityBufferObjectRenderer extends CanvasModuleBase {
         this.konva.group.add(this.renderer.konva.group);
       }
 
+      didRender = this.renderer.update(this.state, true);
+    } else if (this.state.type === 'lasso') {
+      assert(this.renderer instanceof CanvasObjectLasso || !this.renderer);
+
+      if (!this.renderer) {
+        this.renderer = new CanvasObjectLasso(this.state, this);
+        this.konva.group.add(this.renderer.konva.group);
+      }
+
       didRender = this.renderer.update(this.state, true);
     } else if (this.state.type === 'gradient') {
       assert(this.renderer instanceof CanvasObjectGradient || !this.renderer);
@@ -247,6 +257,9 @@ export class CanvasEntityBufferObjectRenderer extends CanvasModuleBase {
         case 'rect':
           this.manager.stateApi.addRect({ entityIdentifier, rect: this.state });
           break;
+        case 'lasso':
+          this.manager.stateApi.addLasso({ entityIdentifier, lasso: this.state });
+          break;
         case 'gradient':
           this.manager.stateApi.addGradient({ entityIdentifier, gradient: this.state });
           break;

invokeai/frontend/web/src/features/controlLayers/konva/CanvasEntity/CanvasEntityObjectRenderer.ts

@@ -10,6 +10,7 @@ import { CanvasObjectEraserLine } from 'features/controlLayers/konva/CanvasObjec
 import { CanvasObjectEraserLineWithPressure } from 'features/controlLayers/konva/CanvasObject/CanvasObjectEraserLineWithPressure';
 import { CanvasObjectGradient } from 'features/controlLayers/konva/CanvasObject/CanvasObjectGradient';
 import { CanvasObjectImage } from 'features/controlLayers/konva/CanvasObject/CanvasObjectImage';
+import { CanvasObjectLasso } from 'features/controlLayers/konva/CanvasObject/CanvasObjectLasso';
 import { CanvasObjectRect } from 'features/controlLayers/konva/CanvasObject/CanvasObjectRect';
 import type { AnyObjectRenderer, AnyObjectState } from 'features/controlLayers/konva/CanvasObject/types';
 import { LightnessToAlphaFilter } from 'features/controlLayers/konva/filters';
@@ -401,6 +402,16 @@ export class CanvasEntityObjectRenderer extends CanvasModuleBase {
         this.konva.objectGroup.add(renderer.konva.group);
       }
 
+      didRender = renderer.update(objectState, force || isFirstRender);
+    } else if (objectState.type === 'lasso') {
+      assert(renderer instanceof CanvasObjectLasso || !renderer);
+
+      if (!renderer) {
+        renderer = new CanvasObjectLasso(objectState, this);
+        this.renderers.set(renderer.id, renderer);
+        this.konva.objectGroup.add(renderer.konva.group);
+      }
+
       didRender = renderer.update(objectState, force || isFirstRender);
     } else if (objectState.type === 'gradient') {
       assert(renderer instanceof CanvasObjectGradient || !renderer);
@@ -437,17 +448,21 @@ export class CanvasEntityObjectRenderer extends CanvasModuleBase {
    * these visually transparent shapes in its calculation:
    *
    * - Eraser lines, which are normal lines with a globalCompositeOperation of 'destination-out'.
+   * - Subtracting lasso shapes, which use a globalCompositeOperation of 'destination-out'.
    * - Clipped portions of any shape.
    * - Images, which may have transparent areas.
    */
   needsPixelBbox = (): boolean => {
     let needsPixelBbox = false;
     for (const renderer of this.renderers.values()) {
-      const isEraserLine = renderer instanceof CanvasObjectEraserLine;
+      const isEraserLine =
+        renderer instanceof CanvasObjectEraserLine || renderer instanceof CanvasObjectEraserLineWithPressure;
+      const isSubtractingLasso =
+        renderer instanceof CanvasObjectLasso && renderer.state.compositeOperation === 'destination-out';
       const isImage = renderer instanceof CanvasObjectImage;
       const imageIgnoresTransparency = isImage && renderer.state.usePixelBbox === false;
       const hasClip = renderer instanceof CanvasObjectBrushLine && renderer.state.clip;
-      if (isEraserLine || hasClip || (isImage && !imageIgnoresTransparency)) {
+      if (isEraserLine || isSubtractingLasso || hasClip || (isImage && !imageIgnoresTransparency)) {
         needsPixelBbox = true;
         break;
       }

invokeai/frontend/web/src/features/controlLayers/konva/CanvasObject/CanvasObjectLasso.ts

@@ -0,0 +1,85 @@
+import { deepClone } from 'common/util/deepClone';
+import type { CanvasEntityBufferObjectRenderer } from 'features/controlLayers/konva/CanvasEntity/CanvasEntityBufferObjectRenderer';
+import type { CanvasEntityObjectRenderer } from 'features/controlLayers/konva/CanvasEntity/CanvasEntityObjectRenderer';
+import type { CanvasManager } from 'features/controlLayers/konva/CanvasManager';
+import { CanvasModuleBase } from 'features/controlLayers/konva/CanvasModuleBase';
+import type { CanvasLassoState } from 'features/controlLayers/store/types';
+import Konva from 'konva';
+import type { Logger } from 'roarr';
+
+export class CanvasObjectLasso extends CanvasModuleBase {
+  readonly type = 'object_lasso';
+  readonly id: string;
+  readonly path: string[];
+  readonly parent: CanvasEntityObjectRenderer | CanvasEntityBufferObjectRenderer;
+  readonly manager: CanvasManager;
+  readonly log: Logger;
+
+  state: CanvasLassoState;
+  konva: {
+    group: Konva.Group;
+    line: Konva.Line;
+  };
+
+  constructor(state: CanvasLassoState, parent: CanvasEntityObjectRenderer | CanvasEntityBufferObjectRenderer) {
+    super();
+    this.id = state.id;
+    this.parent = parent;
+    this.manager = parent.manager;
+    this.path = this.manager.buildPath(this);
+    this.log = this.manager.buildLogger(this);
+
+    this.log.debug({ state }, 'Creating module');
+
+    this.konva = {
+      group: new Konva.Group({
+        name: `${this.type}:group`,
+        listening: false,
+      }),
+      line: new Konva.Line({
+        name: `${this.type}:line`,
+        listening: false,
+        closed: true,
+        fill: 'white',
+        strokeEnabled: false,
+        perfectDrawEnabled: false,
+      }),
+    };
+    this.konva.group.add(this.konva.line);
+    this.state = state;
+  }
+
+  update(state: CanvasLassoState, force = false): boolean {
+    if (force || this.state !== state) {
+      this.log.trace({ state }, 'Updating lasso');
+      this.konva.line.setAttrs({
+        points: state.points,
+        globalCompositeOperation: state.compositeOperation,
+      });
+      this.state = state;
+      return true;
+    }
+
+    return false;
+  }
+
+  setVisibility(isVisible: boolean): void {
+    this.log.trace({ isVisible }, 'Setting lasso visibility');
+    this.konva.group.visible(isVisible);
+  }
+
+  destroy = () => {
+    this.log.debug('Destroying module');
+    this.konva.group.destroy();
+  };
+
+  repr = () => {
+    return {
+      id: this.id,
+      type: this.type,
+      path: this.path,
+      parent: this.parent.id,
+      state: deepClone(this.state),
+    };
+  };
+}

invokeai/frontend/web/src/features/controlLayers/konva/CanvasObject/types.ts

@@ -4,6 +4,7 @@ import type { CanvasObjectEraserLine } from 'features/controlLayers/konva/Canvas
 import type { CanvasObjectEraserLineWithPressure } from 'features/controlLayers/konva/CanvasObject/CanvasObjectEraserLineWithPressure';
 import type { CanvasObjectGradient } from 'features/controlLayers/konva/CanvasObject/CanvasObjectGradient';
 import type { CanvasObjectImage } from 'features/controlLayers/konva/CanvasObject/CanvasObjectImage';
+import type { CanvasObjectLasso } from 'features/controlLayers/konva/CanvasObject/CanvasObjectLasso';
 import type { CanvasObjectRect } from 'features/controlLayers/konva/CanvasObject/CanvasObjectRect';
 import type {
   CanvasBrushLineState,
@@ -12,6 +13,7 @@ import type {
   CanvasEraserLineWithPressureState,
   CanvasGradientState,
   CanvasImageState,
+  CanvasLassoState,
   CanvasRectState,
 } from 'features/controlLayers/store/types';
 
@@ -25,6 +27,7 @@ export type AnyObjectRenderer =
   | CanvasObjectEraserLine
   | CanvasObjectEraserLineWithPressure
   | CanvasObjectRect
+  | CanvasObjectLasso
   | CanvasObjectImage
   | CanvasObjectGradient;
 /**
@@ -37,4 +40,5 @@ export type AnyObjectState =
   | CanvasEraserLineWithPressureState
   | CanvasImageState
   | CanvasRectState
+  | CanvasLassoState
   | CanvasGradientState;

invokeai/frontend/web/src/features/controlLayers/konva/CanvasStateApiModule.ts

@@ -21,6 +21,7 @@ import {
   entityBrushLineAdded,
   entityEraserLineAdded,
   entityGradientAdded,
+  entityLassoAdded,
   entityMovedBy,
   entityMovedTo,
   entityRasterized,
@@ -43,6 +44,7 @@ import type {
   EntityEraserLineAddedPayload,
   EntityGradientAddedPayload,
   EntityIdentifierPayload,
+  EntityLassoAddedPayload,
   EntityMovedByPayload,
   EntityMovedToPayload,
   EntityRasterizedPayload,
@@ -175,6 +177,13 @@ export class CanvasStateApiModule extends CanvasModuleBase {
     this.store.dispatch(entityRectAdded(arg));
   };
 
+  /**
+   * Adds a lasso object to an entity, pushing state to redux.
+   */
+  addLasso = (arg: EntityLassoAddedPayload) => {
+    this.store.dispatch(entityLassoAdded(arg));
+  };
+
   /**
    * Adds a gradient to an entity, pushing state to redux.
    */