ohif-viewer/extensions/dicom-sr/src/tools/DICOMSRDisplayTool.js

400 lines
11 KiB
JavaScript

import { importInternal, getToolState, toolColors } from 'cornerstone-tools';
import { pixelToCanvas } from 'cornerstone-core';
import TOOL_NAMES from '../constants/toolNames';
import SCOORD_TYPES from '../constants/scoordTypes';
import id from '../id';
// Cornerstone 3rd party dev kit imports
const draw = importInternal('drawing/draw');
const drawJoinedLines = importInternal('drawing/drawJoinedLines');
const drawCircle = importInternal('drawing/drawCircle');
const drawEllipse = importInternal('drawing/drawEllipse');
const drawHandles = importInternal('drawing/drawHandles');
const drawArrow = importInternal('drawing/drawArrow');
const getNewContext = importInternal('drawing/getNewContext');
const BaseTool = importInternal('base/BaseTool');
const drawLinkedTextBox = importInternal('drawing/drawLinkedTextBox');
/**
* @class DICOMSRDisplayTool - Renders DICOMSR data in a read only manner (i.e. as an overlay).
* @extends cornerstoneTools.BaseTool
*/
export default class DICOMSRDisplayTool extends BaseTool {
constructor(props = {}) {
const defaultProps = {
mixins: ['enabledOrDisabledBinaryTool'],
name: TOOL_NAMES.DICOM_SR_DISPLAY_TOOL,
};
const initialProps = Object.assign(defaultProps, props);
super(initialProps);
this._module = cornerstoneTools.getModule(id);
}
renderToolData(evt) {
const eventData = evt.detail;
const { element } = eventData;
const module = this._module;
const toolState = getToolState(element, this.name);
if (!toolState) {
return;
}
const trackingUniqueIdentifiersForElement = module.getters.trackingUniqueIdentifiersForElement(
element
);
const {
activeIndex,
trackingUniqueIdentifiers,
} = trackingUniqueIdentifiersForElement;
const activeTrackingUniqueIdentifier =
trackingUniqueIdentifiers[activeIndex];
// Filter toolData to only render the data for the active SR.
const filteredToolData = toolState.data.filter(td =>
trackingUniqueIdentifiers.includes(td.TrackingUniqueIdentifier)
);
let shouldRepositionTextBoxes = false;
for (let i = 0; i < filteredToolData.length; i++) {
const data = filteredToolData[i];
const { renderableData, labels } = data;
const color =
data.TrackingUniqueIdentifier === activeTrackingUniqueIdentifier
? toolColors.getActiveColor()
: toolColors.getToolColor();
const lineWidth = 2;
const options = {
color,
lineWidth,
handleRadius: 6,
};
Object.keys(renderableData).forEach(GraphicType => {
const renderableDataForGraphicType = renderableData[GraphicType];
switch (GraphicType) {
case SCOORD_TYPES.POINT:
this.renderPoint(renderableDataForGraphicType, eventData, options);
break;
case SCOORD_TYPES.MULTIPOINT:
this.renderMultipoint(
renderableDataForGraphicType,
eventData,
options
);
break;
case SCOORD_TYPES.POLYLINE:
this.renderPolyLine(
renderableDataForGraphicType,
eventData,
options
);
break;
case SCOORD_TYPES.CIRCLE:
this.renderCircle(renderableDataForGraphicType, eventData, options);
break;
case SCOORD_TYPES.ELLIPSE:
this.renderEllipse(
renderableDataForGraphicType,
eventData,
options
);
break;
}
});
const { element } = eventData;
const context = getNewContext(eventData.canvasContext.canvas);
if (!data.handles || !data.handles.textBox) {
const textBox = {
active: false,
hasMoved: true,
movesIndependently: false,
drawnIndependently: true,
allowedOutsideImage: true,
hasBoundingBox: true,
};
const anchorPoints = _getTextBoxAnchorPointsForRenderableData(
renderableData,
eventData
);
textBox.anchorPoints = anchorPoints;
const bottomRight = {
x: Math.max(...anchorPoints.map(point => point.x)),
y: Math.max(...anchorPoints.map(point => point.y)),
};
textBox.x = bottomRight.x;
textBox.y = bottomRight.y;
data.handles = {};
data.handles.textBox = textBox;
shouldRepositionTextBoxes = true;
}
const text = _getTextBoxLinesFromLabels(labels);
function textBoxAnchorPoints() {
return data.handles.textBox.anchorPoints;
}
draw(context, context => {
drawLinkedTextBox(
context,
element,
data.handles.textBox,
text,
data.handles,
textBoxAnchorPoints,
color,
lineWidth,
0,
true
);
});
}
// TOOD -> text boxes may overlap with other annotations at the moment.
// To be fixed after we get requirements.
// if (shouldRepositionTextBoxes) {
// this.repositionTextBox(filteredToolData, eventData);
// }
}
// repositionTextBox(toolData, eventData) {
// const toolBoundingBoxes = [];
// for (let i = 0; i < toolData.length; i++) {
// const toolDataI = toolData[i];
// const { textBox } = toolDataI.handles;
// const { anchorPoints } = textBox;
// const boundingBox = _getBoundingBoxFromAnchorPoints(anchorPoints);
// // Get the textbox bounding locations.
// // Get the tool extents.
// }
// }
renderPolyLine(renderableData, eventData, options) {
const { element } = eventData;
const context = getNewContext(eventData.canvasContext.canvas);
renderableData.forEach(points => {
draw(context, context => {
drawJoinedLines(context, element, points[0], points, options);
});
});
}
renderMultipoint(renderableData, eventData, options) {
const context = getNewContext(eventData.canvasContext.canvas);
renderableData.forEach(points => {
draw(context, context => {
drawHandles(context, eventData, points, options);
});
});
}
renderPoint(renderableData, eventData, options) {
// Render single point as an arrow.
const { element, image } = eventData;
const { rows, columns } = image;
const context = getNewContext(eventData.canvasContext.canvas);
const { color, lineWidth } = options;
// Find a suitable length for the image size.
const xOffset = columns / 10;
const yOffset = rows / 10;
renderableData.forEach(points => {
const point = points[0]; // The SCOORD type is POINT so the array length is 1.
draw(context, context => {
// Draw the arrow
const handleStartCanvas = pixelToCanvas(element, point);
const handleEndCanvas = pixelToCanvas(element, {
x: point.x + xOffset,
y: point.y + yOffset,
});
drawArrow(
context,
handleEndCanvas,
handleStartCanvas,
color,
lineWidth,
false
);
});
});
}
renderCircle(renderableData, eventData, options) {
const { element } = eventData;
const context = getNewContext(eventData.canvasContext.canvas);
renderableData.forEach(circle => {
const { center, radius } = circle;
drawCircle(context, element, center, radius, options);
});
}
renderEllipse(renderableData, eventData, options) {
const { element } = eventData;
const context = getNewContext(eventData.canvasContext.canvas);
renderableData.forEach(ellipse => {
const { corner1, corner2 } = ellipse;
drawEllipse(
context,
element,
corner1,
corner2,
options,
'pixel',
0 // TODO -> Work our the initial rotation and add it here so we render appropriately rotated ellipses.
);
});
}
}
function _getTextBoxLinesFromLabels(labels) {
// TODO -> max 3 for now (label + shortAxis + longAxis), need a generic solution for this!
const labelLength = Math.min(labels.length, 3);
const lines = [];
for (let i = 0; i < labelLength; i++) {
const labelEntry = labels[i];
lines.push(`${_labelToShorthand(labelEntry.label)}${labelEntry.value}`);
}
return lines;
}
const SHORT_HAND_MAP = {
'Short Axis': 'W ',
'Long Axis': 'L ',
AREA: 'Area ',
Length: '',
CORNERSTONEFREETEXT: '',
};
function _labelToShorthand(label) {
const shortHand = SHORT_HAND_MAP[label];
if (shortHand !== undefined) {
return shortHand;
}
return label;
}
function _getTextBoxAnchorPointsForRenderableData(renderableData, eventData) {
let anchorPoints = [];
Object.keys(renderableData).forEach(GraphicType => {
const renderableDataForGraphicType = renderableData[GraphicType];
switch (GraphicType) {
case SCOORD_TYPES.POINT:
renderableDataForGraphicType.forEach(points => {
anchorPoints = [...anchorPoints, ...points];
// Add other arrow point based on image size.
const { image } = eventData;
const { rows, columns } = image;
const xOffset = columns / 10;
const yOffset = rows / 10;
const point = points[0];
anchorPoints.push({ x: point.x + xOffset, y: point.y + yOffset });
});
break;
case SCOORD_TYPES.MULTIPOINT:
case SCOORD_TYPES.POLYLINE:
renderableDataForGraphicType.forEach(points => {
anchorPoints = [...anchorPoints, ...points];
});
break;
case SCOORD_TYPES.CIRCLE:
renderableDataForGraphicType.forEach(circle => {
const { center, radius } = circle;
anchorPoints.push({ x: center.x + radius, y: center.y });
anchorPoints.push({ x: center.x - radius, y: center.y });
anchorPoints.push({ x: center.x, y: center.y + radius });
anchorPoints.push({ x: center.x, y: center.y - radius });
});
break;
case SCOORD_TYPES.ELLIPSE:
renderableDataForGraphicType.forEach(ellipse => {
const { corner1, corner2 } = ellipse;
const halfWidth = Math.abs(corner1.x - corner2.x) / 2;
const halfHeight = Math.abs(corner1.y - corner2.y) / 2;
const center = {
x: (corner1.x + corner2.x) / 2,
y: (corner1.y + corner2.y) / 2,
};
anchorPoints.push({ x: center.x + halfWidth, y: center.y });
anchorPoints.push({ x: center.x - halfWidth, y: center.y });
anchorPoints.push({ x: center.x, y: center.y + halfHeight });
anchorPoints.push({ x: center.x, y: center.y - halfHeight });
});
break;
}
});
return anchorPoints;
}
function _getBoundingBoxFromAnchorPoints(anchorPoints) {
let minX = Infinity;
let maxX = -Infinity;
let minY = Infinity;
let maxY = -Infinity;
anchorPoints.forEach(point => {
const { x, y } = point;
if (x > maxX) {
maxX = x;
} else if (x < minX) {
minX = x;
}
if (y > maxX) {
maxY = y;
} else if (y < minY) {
minY = y;
}
});
}