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import {
getEnabledElement,
utilities as csUtils,
StackViewport,
} from '@cornerstonejs/core';
import type { Types } from '@cornerstonejs/core';
import { AnnotationTool } from '../base';
import throttle from '../../utilities/throttle';
import {
addAnnotation,
getAnnotations,
removeAnnotation,
} from '../../stateManagement/annotation/annotationState';
import {
triggerAnnotationCompleted,
triggerAnnotationModified,
} from '../../stateManagement/annotation/helpers/state';
import { UltrasoundDirectionalAnnotation } from '../../types/ToolSpecificAnnotationTypes';
import {
drawHandle as drawHandleSvg,
drawLine as drawLineSvg,
drawLinkedTextBox as drawLinkedTextBoxSvg,
} from '../../drawingSvg';
import { state } from '../../store';
import { getViewportIdsWithToolToRender } from '../../utilities/viewportFilters';
import { roundNumber } from '../../utilities';
import { distanceToPoint } from '../../utilities/math/point';
import triggerAnnotationRenderForViewportIds from '../../utilities/triggerAnnotationRenderForViewportIds';
import {
resetElementCursor,
hideElementCursor,
} from '../../cursors/elementCursor';
import {
EventTypes,
ToolHandle,
TextBoxHandle,
PublicToolProps,
ToolProps,
SVGDrawingHelper,
Annotation,
InteractionTypes,
} from '../../types';
import { StyleSpecifier } from '../../types/AnnotationStyle';
import { getCalibratedProbeUnitsAndValue } from '../../utilities/getCalibratedUnits';
const { transformWorldToIndex } = csUtils;
/**
* The `UltrasoundDirectionalTool` class is a tool for creating directional ultrasound annotations.
* It allows users to draw lines and measure distances between two points in the image.
* It automatically calculates the distance based on the relevant unit of measurement.
*/
class UltrasoundDirectionalTool extends AnnotationTool {
static toolName;
public touchDragCallback: any;
public mouseDragCallback: any;
startedDrawing: boolean;
_throttledCalculateCachedStats: any;
editData: {
annotation: any;
viewportIdsToRender: string[];
handleIndex?: number;
movingTextBox?: boolean;
newAnnotation?: boolean;
hasMoved?: boolean;
} | null;
isDrawing: boolean;
isHandleOutsideImage: boolean;
constructor(
toolProps: PublicToolProps = {},
defaultToolProps: ToolProps = {
supportedInteractionTypes: ['Mouse', 'Touch'],
configuration: {
shadow: true,
preventHandleOutsideImage: false,
getTextLines: defaultGetTextLines,
/**
* Determines whether both horizontal and vertical distances should be displayed
* in the text lines when generating annotations' measurement information.
*/
displayBothAxesDistances: false,
},
}
) {
super(toolProps, defaultToolProps);
this._throttledCalculateCachedStats = throttle(
this._calculateCachedStats,
100,
{ trailing: true }
);
}
/**
* Based on the current position of the mouse and the current imageId to create
* a Ultrasound Directional Tool and store it in the annotationManager
*
* @param evt - EventTypes.InteractionEventType
* @returns The annotation object.
*/
addNewAnnotation = (
evt: EventTypes.InteractionEventType
): UltrasoundDirectionalAnnotation => {
if (this.startedDrawing) {
return;
}
this.startedDrawing = true;
const eventDetail = evt.detail;
const { currentPoints, element } = eventDetail;
const worldPos = currentPoints.world;
const enabledElement = getEnabledElement(element);
const { viewport, renderingEngine } = enabledElement;
if (!(viewport instanceof StackViewport)) {
throw new Error(
'UltrasoundDirectionalTool can only be used on a StackViewport'
);
}
hideElementCursor(element);
this.isDrawing = true;
const camera = viewport.getCamera();
const { viewPlaneNormal, viewUp } = camera;
const referencedImageId = this.getReferencedImageId(
viewport,
worldPos,
viewPlaneNormal,
viewUp
);
const FrameOfReferenceUID = viewport.getFrameOfReferenceUID();
const annotation = {
highlighted: true,
invalidated: true,
metadata: {
toolName: this.getToolName(),
viewPlaneNormal: <Types.Point3>[...viewPlaneNormal],
viewUp: <Types.Point3>[...viewUp],
FrameOfReferenceUID,
referencedImageId,
},
data: {
handles: {
points: [<Types.Point3>[...worldPos], <Types.Point3>[...worldPos]],
activeHandleIndex: null,
textBox: {
hasMoved: false,
worldPosition: <Types.Point3>[0, 0, 0],
worldBoundingBox: {
topLeft: <Types.Point3>[0, 0, 0],
topRight: <Types.Point3>[0, 0, 0],
bottomLeft: <Types.Point3>[0, 0, 0],
bottomRight: <Types.Point3>[0, 0, 0],
},
},
},
label: '',
cachedStats: {},
},
};
addAnnotation(annotation, element);
const viewportIdsToRender = getViewportIdsWithToolToRender(
element,
this.getToolName()
);
this.editData = {
annotation,
viewportIdsToRender,
handleIndex: 1,
movingTextBox: false,
newAnnotation: true,
hasMoved: false,
};
this._activateDraw(element);
evt.preventDefault();
triggerAnnotationRenderForViewportIds(renderingEngine, viewportIdsToRender);
return annotation;
};
/**
* It returns if the canvas point is near the provided length annotation in the provided
* element or not. A proximity is passed to the function to determine the
* proximity of the point to the annotation in number of pixels.
*
* @param element - HTML Element
* @param annotation - Annotation
* @param canvasCoords - Canvas coordinates
* @param proximity - Proximity to tool to consider
* @returns Boolean, whether the canvas point is near tool
*/
isPointNearTool = (
element: HTMLDivElement,
annotation: UltrasoundDirectionalAnnotation,
canvasCoords: Types.Point2,
proximity: number
): boolean => {
return false;
};
toolSelectedCallback(
evt: EventTypes.InteractionEventType,
annotation: Annotation,
interactionType: InteractionTypes,
canvasCoords?: Types.Point2
): void {
return;
}
handleSelectedCallback(
evt: EventTypes.InteractionEventType,
annotation: UltrasoundDirectionalAnnotation,
handle: ToolHandle
): void {
const eventDetail = evt.detail;
const { element } = eventDetail;
const { data } = annotation;
annotation.highlighted = true;
const viewportIdsToRender = getViewportIdsWithToolToRender(
element,
this.getToolName()
);
let movingTextBox = false;
let handleIndex;
if ((handle as TextBoxHandle).worldPosition) {
movingTextBox = true;
} else {
handleIndex = data.handles.points.findIndex((p) => p === handle);
}
// Find viewports to render on drag.
this.editData = {
handleIndex,
annotation,
viewportIdsToRender,
};
this._activateModify(element);
hideElementCursor(element);
const enabledElement = getEnabledElement(element);
const { renderingEngine } = enabledElement;
triggerAnnotationRenderForViewportIds(renderingEngine, viewportIdsToRender);
evt.preventDefault();
}
_endCallback = (evt: EventTypes.InteractionEventType): void => {
const eventDetail = evt.detail;
const { element } = eventDetail;
const { annotation, viewportIdsToRender, newAnnotation, hasMoved } =
this.editData;
const { data } = annotation;
if (newAnnotation && !hasMoved) {
// when user starts the drawing by click, and moving the mouse, instead
// of click and drag
return;
}
// If preventing new measurement means we are in the middle of an existing measurement
// we shouldn't deactivate modify or draw
if (this.startedDrawing && data.handles.points.length === 1) {
// adds the last point to the measurement
this.editData.handleIndex = 1;
return;
}
this.startedDrawing = false;
data.handles.activeHandleIndex = null;
this._deactivateModify(element);
this._deactivateDraw(element);
resetElementCursor(element);
const enabledElement = getEnabledElement(element);
const { renderingEngine } = enabledElement;
if (
this.isHandleOutsideImage &&
this.configuration.preventHandleOutsideImage
) {
removeAnnotation(annotation.annotationUID);
}
triggerAnnotationRenderForViewportIds(renderingEngine, viewportIdsToRender);
if (newAnnotation) {
triggerAnnotationCompleted(annotation);
}
this.editData = null;
this.isDrawing = false;
};
_dragCallback = (evt: EventTypes.InteractionEventType): void => {
this.isDrawing = true;
const eventDetail = evt.detail;
const { element } = eventDetail;
const { annotation, viewportIdsToRender, handleIndex, movingTextBox } =
this.editData;
const { data } = annotation;
if (movingTextBox) {
// Drag mode - moving text box
const { deltaPoints } = eventDetail as EventTypes.MouseDragEventDetail;
const worldPosDelta = deltaPoints.world;
const { textBox } = data.handles;
const { worldPosition } = textBox;
worldPosition[0] += worldPosDelta[0];
worldPosition[1] += worldPosDelta[1];
worldPosition[2] += worldPosDelta[2];
textBox.hasMoved = true;
} else if (handleIndex === undefined) {
// Drag mode - moving handle
const { deltaPoints } = eventDetail as EventTypes.MouseDragEventDetail;
const worldPosDelta = deltaPoints.world;
const points = data.handles.points;
points.forEach((point) => {
point[0] += worldPosDelta[0];
point[1] += worldPosDelta[1];
point[2] += worldPosDelta[2];
});
annotation.invalidated = true;
} else {
// Move mode - after double click, and mouse move to draw
const { currentPoints } = eventDetail;
const worldPos = currentPoints.world;
data.handles.points[handleIndex] = [...worldPos];
annotation.invalidated = true;
}
this.editData.hasMoved = true;
const enabledElement = getEnabledElement(element);
const { renderingEngine } = enabledElement;
triggerAnnotationRenderForViewportIds(renderingEngine, viewportIdsToRender);
};
cancel = (element: HTMLDivElement) => {
// If it is mid-draw or mid-modify
if (this.isDrawing) {
this.isDrawing = false;
this._deactivateDraw(element);
this._deactivateModify(element);
resetElementCursor(element);
const { annotation, viewportIdsToRender, newAnnotation } = this.editData;
const { data } = annotation;
annotation.highlighted = false;
data.handles.activeHandleIndex = null;
const enabledElement = getEnabledElement(element);
const { renderingEngine } = enabledElement;
triggerAnnotationRenderForViewportIds(
renderingEngine,
viewportIdsToRender
);
if (newAnnotation) {
triggerAnnotationCompleted(annotation);
}
this.editData = null;
this.startedDrawing = false;
return annotation.annotationUID;
}
};
_activateModify = (element: HTMLDivElement) => {
state.isInteractingWithTool = true;
element.addEventListener(
Events.MOUSE_UP,
this._endCallback as EventListener
);
element.addEventListener(
Events.MOUSE_DRAG,
this._dragCallback as EventListener
);
element.addEventListener(
Events.MOUSE_CLICK,
this._endCallback as EventListener
);
element.addEventListener(
Events.TOUCH_TAP,
this._endCallback as EventListener
);
element.addEventListener(
Events.TOUCH_END,
this._endCallback as EventListener
);
element.addEventListener(
Events.TOUCH_DRAG,
this._dragCallback as EventListener
);
};
_deactivateModify = (element: HTMLDivElement) => {
state.isInteractingWithTool = false;
element.removeEventListener(
Events.MOUSE_UP,
this._endCallback as EventListener
);
element.removeEventListener(
Events.MOUSE_DRAG,
this._dragCallback as EventListener
);
element.removeEventListener(
Events.MOUSE_CLICK,
this._endCallback as EventListener
);
element.removeEventListener(
Events.TOUCH_TAP,
this._endCallback as EventListener
);
element.removeEventListener(
Events.TOUCH_END,
this._endCallback as EventListener
);
element.removeEventListener(
Events.TOUCH_DRAG,
this._dragCallback as EventListener
);
};
_activateDraw = (element: HTMLDivElement) => {
state.isInteractingWithTool = true;
element.addEventListener(
Events.MOUSE_UP,
this._endCallback as EventListener
);
element.addEventListener(
Events.MOUSE_DRAG,
this._dragCallback as EventListener
);
element.addEventListener(
Events.MOUSE_MOVE,
this._dragCallback as EventListener
);
element.addEventListener(
Events.MOUSE_CLICK,
this._endCallback as EventListener
);
element.addEventListener(
Events.TOUCH_TAP,
this._endCallback as EventListener
);
element.addEventListener(
Events.TOUCH_END,
this._endCallback as EventListener
);
element.addEventListener(
Events.TOUCH_DRAG,
this._dragCallback as EventListener
);
};
_deactivateDraw = (element: HTMLDivElement) => {
state.isInteractingWithTool = false;
element.removeEventListener(
Events.MOUSE_UP,
this._endCallback as EventListener
);
element.removeEventListener(
Events.MOUSE_DRAG,
this._dragCallback as EventListener
);
element.removeEventListener(
Events.MOUSE_MOVE,
this._dragCallback as EventListener
);
element.removeEventListener(
Events.MOUSE_CLICK,
this._endCallback as EventListener
);
element.removeEventListener(
Events.TOUCH_TAP,
this._endCallback as EventListener
);
element.removeEventListener(
Events.TOUCH_END,
this._endCallback as EventListener
);
element.removeEventListener(
Events.TOUCH_DRAG,
this._dragCallback as EventListener
);
};
/**
* it is used to draw the length annotation in each
* request animation frame. It calculates the updated cached statistics if
* data is invalidated and cache it.
*
* @param enabledElement - The Cornerstone's enabledElement.
* @param svgDrawingHelper - The svgDrawingHelper providing the context for drawing.
*/
renderAnnotation = (
enabledElement: Types.IEnabledElement,
svgDrawingHelper: SVGDrawingHelper
): boolean => {
let renderStatus = false;
const { viewport } = enabledElement;
const { element } = viewport;
let annotations = getAnnotations(this.getToolName(), element);
// Todo: We don't need this anymore, filtering happens in triggerAnnotationRender
if (!annotations?.length) {
return renderStatus;
}
annotations = this.filterInteractableAnnotationsForElement(
element,
annotations
);
if (!annotations?.length) {
return renderStatus;
}
const targetId = this.getTargetId(viewport);
const renderingEngine = viewport.getRenderingEngine();
const styleSpecifier: StyleSpecifier = {
toolGroupId: this.toolGroupId,
toolName: this.getToolName(),
viewportId: enabledElement.viewport.id,
};
// Draw SVG
for (let i = 0; i < annotations.length; i++) {
const annotation = annotations[i] as UltrasoundDirectionalAnnotation;
const { annotationUID, data } = annotation;
const { points } = data.handles;
styleSpecifier.annotationUID = annotationUID;
const color = this.getStyle('color', styleSpecifier, annotation);
const canvasCoordinates = points.map((p) => viewport.worldToCanvas(p));
// WE HAVE TO CACHE STATS BEFORE FETCHING TEXT
if (
!data.cachedStats[targetId] ||
data.cachedStats[targetId].xValues == null
) {
data.cachedStats[targetId] = {
xValues: [0, 0],
yValues: [0, 0],
isHorizontal: false,
units: [''],
isUnitless: false,
};
this._calculateCachedStats(annotation, renderingEngine, enabledElement);
} else if (annotation.invalidated) {
this._throttledCalculateCachedStats(
annotation,
renderingEngine,
enabledElement
);
}
// If rendering engine has been destroyed while rendering
if (!viewport.getRenderingEngine()) {
console.warn('Rendering Engine has been destroyed');
return renderStatus;
}
// draw first point
let handleGroupUID = '0';
drawHandleSvg(
svgDrawingHelper,
annotationUID,
handleGroupUID,
canvasCoordinates[0],
{
color,
},
0
);
renderStatus = true;
if (canvasCoordinates.length !== 2) {
return renderStatus;
}
handleGroupUID = '1';
drawHandleSvg(
svgDrawingHelper,
annotationUID,
handleGroupUID,
canvasCoordinates[1],
{
color,
},
1
);
const isUnitless = data.cachedStats[targetId].isUnitless;
if (!isUnitless) {
const canvasPoint1 = canvasCoordinates[0];
const canvasPoint2 = canvasCoordinates[1];
const canvasDeltaY = canvasPoint2[1] - canvasPoint1[1];
const canvasDeltaX = canvasPoint2[0] - canvasPoint1[0];
const isHorizontal = data.cachedStats[targetId].isHorizontal;
// then for the third point we need to go from first point towards
// the second point (it can be left or right in the horizontal orientation)
// or up or down in the vertical orientation, and only add
// the delta y to the x or y coordinate of the first point
let projectedPointCanvas = [0, 0] as Types.Point2;
if (isHorizontal) {
projectedPointCanvas = [
canvasPoint1[0] + canvasDeltaX,
canvasPoint1[1],
];
} else {
projectedPointCanvas = [
canvasPoint1[0],
canvasPoint1[1] + canvasDeltaY,
];
}
// create a line from the first point to the third point
let dataId = `${annotationUID}-line-1`;
let lineUID = '1';
drawLineSvg(
svgDrawingHelper,
annotationUID,
lineUID,
canvasCoordinates[0],
projectedPointCanvas,
{
color,
width: 1,
shadow: this.configuration.shadow,
},
dataId
);
// draw another line from first point to the projected one
dataId = `${annotationUID}-line-2`;
lineUID = '2';
drawLineSvg(
svgDrawingHelper,
annotationUID,
lineUID,
canvasCoordinates[1],
projectedPointCanvas,
{
color,
width: 1,
lineDash: [1, 1],
shadow: this.configuration.shadow,
},
dataId
);
} else {
// draw straight line between the two points
const dataId = `${annotationUID}-line-1`;
const lineUID = '1';
drawLineSvg(
svgDrawingHelper,
annotationUID,
lineUID,
canvasCoordinates[0],
canvasCoordinates[1],
{
color,
width: 1,
shadow: this.configuration.shadow,
},
dataId
);
}
// draw another line from first point to the
const options = this.getLinkedTextBoxStyle(styleSpecifier, annotation);
if (!options.visibility) {
data.handles.textBox = {
hasMoved: false,
worldPosition: <Types.Point3>[0, 0, 0],
worldBoundingBox: {
topLeft: <Types.Point3>[0, 0, 0],
topRight: <Types.Point3>[0, 0, 0],
bottomLeft: <Types.Point3>[0, 0, 0],
bottomRight: <Types.Point3>[0, 0, 0],
},
};
continue;
}
const textLines = this.configuration.getTextLines(
data,
targetId,
this.configuration
);
if (!data.handles.textBox.hasMoved) {
// linked to the vertex by default
const canvasTextBoxCoords = canvasCoordinates[1];
data.handles.textBox.worldPosition =
viewport.canvasToWorld(canvasTextBoxCoords);
}
const textBoxPosition = viewport.worldToCanvas(
data.handles.textBox.worldPosition
);
const textBoxUID = '1';
const boundingBox = drawLinkedTextBoxSvg(
svgDrawingHelper,
annotationUID,
textBoxUID,
textLines,
textBoxPosition,
canvasCoordinates,
{},
options
);
const { x: left, y: top, width, height } = boundingBox;
data.handles.textBox.worldBoundingBox = {
topLeft: viewport.canvasToWorld([left, top]),
topRight: viewport.canvasToWorld([left + width, top]),
bottomLeft: viewport.canvasToWorld([left, top + height]),
bottomRight: viewport.canvasToWorld([left + width, top + height]),
};
}
return renderStatus;
};
_calculateCachedStats(annotation, renderingEngine, enabledElement) {
const data = annotation.data;
const { element } = enabledElement.viewport;
// Until we have all two anchors bail out
if (data.handles.points.length !== 2) {
return;
}
const { cachedStats } = data;
const targetIds = Object.keys(cachedStats);
for (let i = 0; i < targetIds.length; i++) {
const targetId = targetIds[i];
const image = this.getTargetIdImage(targetId, renderingEngine);
// If image does not exists for the targetId, skip. This can be due
// to various reasons such as if the target was a volumeViewport, and
// the volumeViewport has been decached in the meantime.
if (!image) {
continue;
}
const { imageData } = image;
const worldPos1 = data.handles.points[0];
const worldPos2 = data.handles.points[1];
const imageIndex1 = transformWorldToIndex(imageData, worldPos1);
const imageIndex2 = transformWorldToIndex(imageData, worldPos2);
const { values: values1, units: units1 } =
getCalibratedProbeUnitsAndValue(image, [imageIndex1]);
const { values: values2, units: units2 } =
getCalibratedProbeUnitsAndValue(image, [imageIndex2]);
let xValues, yValues, units, isHorizontal;
let isUnitless = false;
if (
units1[0] !== units2[0] ||
units1[1] !== units2[1] ||
(units1[0] === 'raw' && units2[0] === 'raw')
) {
// if units are not the same, we cannot calculate the diff
// so we just report the px distance
const value = distanceToPoint(worldPos1, worldPos2);
xValues = [value, 0];
yValues = [value, 0];
units = ['px'];
isUnitless = true;
} else {
const canvasPoint1 = enabledElement.viewport.worldToCanvas(worldPos1);
const canvasPoint2 = enabledElement.viewport.worldToCanvas(worldPos2);
const canvasDeltaY = canvasPoint2[1] - canvasPoint1[1];
const canvasDeltaX = canvasPoint2[0] - canvasPoint1[0];
isHorizontal = Math.abs(canvasDeltaX) > Math.abs(canvasDeltaY);
xValues = [values1[0], values2[0]];
yValues = [values1[1], values2[1]];
units = [units1[0], units1[1]];
}
cachedStats[targetId] = {
xValues,
yValues,
isHorizontal,
units,
isUnitless,
};
}
annotation.invalidated = false;
// Dispatching annotation modified
triggerAnnotationModified(annotation, element);
return cachedStats;
}
}
function defaultGetTextLines(data, targetId, configuration): string[] {
const cachedStats = data.cachedStats[targetId];
const { xValues, yValues, units, isUnitless, isHorizontal } = cachedStats;
if (isUnitless) {
return [`${roundNumber(xValues[0])} px`];
}
if (configuration.displayBothAxesDistances) {
const dist1 = Math.abs(xValues[1] - xValues[0]);
const dist2 = Math.abs(yValues[1] - yValues[0]);
return [
`${roundNumber(dist1)} ${units[0]}`,
`${roundNumber(dist2)} ${units[1]}`,
];
}
if (isHorizontal) {
const dist = Math.abs(xValues[1] - xValues[0]);
return [`${roundNumber(dist)} ${units[0]}`];
} else {
const dist = Math.abs(yValues[1] - yValues[0]);
return [`${roundNumber(dist)} ${units[1]}`];
}
}
UltrasoundDirectionalTool.toolName = 'UltrasoundDirectionalTool';
export default UltrasoundDirectionalTool;
|