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ohif-viewer/extensions/dicom-rt/src/tools/RTStructDisplayTool.js
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2020-04-09 07:21:43 -03:00
import { importInternal, getToolState, toolColors } from 'cornerstone-tools';
import TOOL_NAMES from '../utils/toolNames';
// Cornerstone 3rd party dev kit imports
const draw = importInternal('drawing/draw');
const drawJoinedLines = importInternal('drawing/drawJoinedLines');
const getNewContext = importInternal('drawing/getNewContext');
const BaseTool = importInternal('base/BaseTool');
/**
* @class RTStructDisplayTool - Renders RTSTRUCT data in a read only manner (i.e. as an overlay).
* @extends cornerstoneTools.BaseTool
*/
export default class RTStructDisplayTool extends BaseTool {
constructor(props = {}) {
const defaultProps = {
mixins: ['enabledOrDisabledBinaryTool'],
name: TOOL_NAMES.RTSTRUCT_DISPLAY_TOOL,
};
const initialProps = Object.assign(defaultProps, props);
super(initialProps);
this._rtStructModule = cornerstoneTools.getModule('rtstruct');
}
renderToolData(evt) {
const eventData = evt.detail;
const rtstructModule = this._rtStructModule;
const toolState = getToolState(evt.currentTarget, this.name);
if (!toolState) {
return;
}
const { lineWidth, opacity } = rtstructModule.configuration;
// We have tool data for this element - iterate over each one and draw it
const context = getNewContext(eventData.canvasContext.canvas);
for (let i = 0; i < toolState.data.length; i++) {
const data = toolState.data[i];
const structureSet = rtstructModule.getters.structureSet(
data.structureSetSeriesInstanceUid
);
// Don't render if entire StructureSet is hidden.
if (structureSet.visible === false) {
continue;
}
const ROIContourData = rtstructModule.getters.ROIContour(
data.structureSetSeriesInstanceUid,
data.ROINumber
);
// Don't render if ROIContour is hidden.
if (ROIContourData.visible === false) {
continue;
}
const points = data.handles.points;
if (!points.length) {
continue;
}
const colorArray = ROIContourData.colorArray;
const color = `rgba(${colorArray[0]},${colorArray[1]},${
colorArray[2]
},${opacity})`;
lineWidth;
draw(context, context => {
drawJoinedLines(
context,
eventData.element,
points[points.length - 1],
points,
{
color,
lineWidth,
}
);
});
}
}
}