Ross
674 lines
19 KiB
JavaScript
674 lines
19 KiB
JavaScript
/* global cornerstone, cornerstoneTools, cornerstoneBase64ImageLoader, cornerstoneWebImageLoader, cornerstoneWADOImageLoader */
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/**
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* Load the main image
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* @param {*} image -
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* @param {*} stack -
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*/
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export function loadMainImage(image, stack) {
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const PanTool = cornerstoneTools.PanTool;
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const ZoomTool = cornerstoneTools.ZoomTool;
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const WwwcTool = cornerstoneTools.WwwcTool;
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const RotateTool = cornerstoneTools.RotateTool;
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const StackScrollTool = cornerstoneTools.StackScrollTool;
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const ArrowAnnotateTool = cornerstoneTools.ArrowAnnotateTool;
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const element = document.getElementById("dicom-image");
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cornerstone.enable(element);
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cornerstone.displayImage(element, image);
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cornerstoneTools.addStackStateManager(element, ["stack"]);
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cornerstoneTools.addToolState(element, "stack", stack);
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cornerstoneTools.addToolForElement(element, PanTool);
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cornerstoneTools.addToolForElement(element, ZoomTool, {
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configuration: {
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invert: true,
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},
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});
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cornerstoneTools.addToolForElement(element, WwwcTool);
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cornerstoneTools.addToolForElement(element, RotateTool);
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cornerstoneTools.addToolForElement(element, StackScrollTool);
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cornerstoneTools.addToolForElement(element, ArrowAnnotateTool, {
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configuration: {
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getTextCallback: () => {},
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changeTextCallback: () => {},
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allowEmptyLabel: true,
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renderDashed: false,
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drawHandles: false,
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drawHandlesOnHover: true,
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},
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});
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cornerstoneTools.setToolActiveForElement(element, "Pan", {
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mouseButtonMask: 1,
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});
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cornerstoneTools.setToolEnabledForElement(element, "ArrowAnnotate");
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//cornerstoneTools.keyboardInput.enable(element);
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element.addEventListener("cornerstoneimagerendered", onImageRendered);
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setDicomCanvasNonFullscreen(element);
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cornerstone.reset(element);
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element.scrollIntoView(false);
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// element.scrollTo(0);
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$(element).dblclick(function () {
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if ($(".canvas-panel").length == 0) {
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// already fullscreen (disable it)
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disableFullscreen(this);
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} else {
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$(".content-panel").append($(".canvas-panel"));
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$(".canvas-panel").toggleClass("canvas-panel canvas-panel-fullscreen");
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$("#dicom-image").attr("height", "100%");
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$("#dicom-image").height("100%");
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// $(".cornerstone-canvas").attr("height", "100%");
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// $(".cornerstone-canvas").height("100%");
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cornerstone.resize(this, true);
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}
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});
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element.removeEventListener("wheel", element.wheelEventHandler);
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// Add tool selector
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$(".canvas-panel").append(
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'<select class="control-overlay"><option value="pan">pan [p]</option><option value="zoom">zoom [z]</option><option value="rotate">rotate [r]</option><option value="scroll" hidden="" disabled="">scroll (1/1)</option><option value="window">window ()</option><option value="abdomen" hidden="" disabled="">window = abdomen [a]</option><option value="pulmonary" hidden="" disabled="">window = pulmonary [u]</option><option value="brain" hidden="" disabled="">window = brain [b]</option><option value="bone" hidden="" disabled="">window = bone [o]</option><option value="reset">reset [e]</option><option value="close">close [c]</option><option disabled="true" value="notes">[modality = CR][size = 9.8]</option></select>'
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);
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$(".control-overlay")
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.get(0)
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.addEventListener("change", function () {
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changeControlSelection();
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});
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// Register Key Event Listener
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document.addEventListener("keydown", keydown_handler);
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}
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/**
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* Called when a dicom image is rendered
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* @param {*} e - Event
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*/
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function onImageRendered(e) {
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const eventData = e.detail;
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// Update ww/wl
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const sel = $(".control-overlay").get(0);
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sel.options[find_option(sel, "window")].firstChild.textContent =
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"window (" +
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Math.round(eventData.viewport.voi.windowCenter) +
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" \u00b1 " +
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Math.round(eventData.viewport.voi.windowWidth) +
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")";
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// update stack data
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const stack =
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eventData.enabledElement.toolStateManager.toolState.stack.data[0];
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if (stack.imageIds.length > 1) {
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$("option[value=scroll").prop("disabled", false);
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$("option[value=scroll").prop("hidden", false);
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$("option[value=scroll").text(
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"scroll (" +
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(stack.currentImageIdIndex + 1) +
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"/" +
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stack.imageIds.length +
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")"
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);
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// Temp way to enable CT window presets
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// Enable for all stacked images...
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$("option[value=abdomen").prop("hidden", false);
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$("option[value=pulmonary").prop("hidden", false);
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$("option[value=brain").prop("hidden", false);
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$("option[value=bone").prop("hidden", false);
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$("option[value=abdomen").prop("disabled", false);
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$("option[value=pulmonary").prop("disabled", false);
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$("option[value=brain").prop("disabled", false);
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$("option[value=bone").prop("disabled", false);
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}
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}
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/**
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* Finds a select options but its text value
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* @param {*} select - select element
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* @param {*} text - text value
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* @return {number} - number of found option or 'undefined'
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*/
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export function find_option(select, text) {
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for (let i = 0; i < select.length; ++i) {
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if (select.options[i].value == text) {
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return i;
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}
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}
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return undefined;
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}
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/**
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* Disables fullscreen mode
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* @param {*} dicom_element -
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*/
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export function disableFullscreen(dicom_element) {
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// TODO: rescale the image to stop it getting zoomed in
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$(".canvas-panel-fullscreen").toggleClass(
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"canvas-panel canvas-panel-fullscreen"
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);
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$(".question").append($(".canvas-panel"));
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$(".canvas-panel").get(0).scrollIntoView();
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setDicomCanvasNonFullscreen(dicom_element);
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}
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/**
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* Enable fullscreen
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* @param {*} element -
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*/
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export function setDicomCanvasNonFullscreen(element) {
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const h = window.innerHeight - $(".nav-bar").height() - 4;
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$("#dicom-image").attr("height", h);
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$("#dicom-image").height(h);
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// $("#dicom-image.cornerstone-canvas").attr("height", h);
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// $("#dicom-image.cornerstone-canvas").height(h);
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$("#dicom-image .cornerstone-canvas").attr("width", "100%");
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cornerstone.resize(element, true);
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}
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export function manualPanDicom(x, y) {
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let dicom_element = document.getElementById("dicom-image");
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const viewport = cornerstone.getViewport(dicom_element);
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viewport.translation.x += x;
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viewport.translation.y += y;
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cornerstone.setViewport(dicom_element, viewport);
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}
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export function manualZoomDicom(delta) {
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let dicom_element = document.getElementById("dicom-image");
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const viewport = cornerstone.getViewport(dicom_element);
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viewport.scale += delta / 100;
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cornerstone.setViewport(dicom_element, viewport);
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}
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export function manualRotateDicom(delta) {
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let dicom_element = document.getElementById("dicom-image");
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const viewport = cornerstone.getViewport(dicom_element);
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viewport.rotation += delta;
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cornerstone.setViewport(dicom_element, viewport);
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}
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export function manualScrollDicom(n) {
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// There must be a better way to do this...
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let dicom_element = document.getElementById("dicom-image");
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let c = cornerstone.getEnabledElement(dicom_element);
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let max = c.toolStateManager.toolState.stack.data[0].imageIds.length;
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if (max < 2) {
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return;
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}
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let current_index =
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c.toolStateManager.toolState.stack.data[0].currentImageIdIndex;
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// Loop through stack if out of bounds
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// Yes it is annoying but it's the way it is done...
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let new_index = current_index + n;
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if (new_index >= max) {
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new_index = new_index - max;
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} else if (new_index < 0) {
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new_index = new_index + max;
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}
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c.toolStateManager.toolState.stack.data[0].currentImageIdIndex = new_index;
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let id = c.toolStateManager.toolState.stack.data[0].imageIds[new_index];
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cornerstone.loadImage(id).then((b) => {
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cornerstone.displayImage(dicom_element, b);
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});
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// c = cornerstone.getEnabledElement(dicom_element)
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}
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export function manualWindowDicom(wl, ww) {
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let dicom_element = document.getElementById("dicom-image");
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const viewport = cornerstone.getViewport(dicom_element);
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// For reference
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// brightness ~= wl
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// contrast ~= ww
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viewport.voi.windowCenter += wl;
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viewport.voi.windowWidth += ww;
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cornerstone.setViewport(dicom_element, viewport);
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}
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export function debugCornerstone() {
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let dicom_element = document.getElementById("dicom-image");
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let viewport = cornerstone.getViewport(dicom_element);
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let c = cornerstone.getEnabledElement(dicom_element);
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}
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/**
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* Registers the selected dicom tool
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*/
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export function changeControlSelection() {
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// We also duplicate the sel that are available
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const sel = $(".control-overlay").get(0);
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const old = sel.oldSelectedIndex;
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sel.oldSelectedIndex = sel.selectedIndex;
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const dicom_element = document.getElementById("dicom-image");
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switch (sel.options[sel.selectedIndex].value) {
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case "pan": {
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cornerstoneTools.setToolActiveForElement(dicom_element, "Pan", {
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mouseButtonMask: 1,
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});
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break;
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}
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case "zoom": {
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cornerstoneTools.setToolActiveForElement(dicom_element, "Zoom", {
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mouseButtonMask: 1,
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});
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break;
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}
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case "rotate": {
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cornerstoneTools.setToolActiveForElement(dicom_element, "Rotate", {
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mouseButtonMask: 1,
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});
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break;
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}
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case "scroll": {
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cornerstoneTools.setToolActiveForElement(dicom_element, "StackScroll", {
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mouseButtonMask: 1,
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});
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// _this.left.onstart = _this.scroll_start;
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// _this.selected_control = t.selectedIndex;
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break;
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}
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case "window": {
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cornerstoneTools.setToolActiveForElement(dicom_element, "Wwwc", {
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mouseButtonMask: 1,
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});
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break;
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}
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case "abdomen": {
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const viewport = cornerstone.getViewport(dicom_element);
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viewport.voi.windowCenter = 150;
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viewport.voi.windowWidth = 500;
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cornerstone.setViewport(dicom_element, viewport);
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sel.selectedIndex = find_option(sel, "window");
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changeControlSelection();
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break;
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}
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case "pulmonary": {
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const viewport = cornerstone.getViewport(dicom_element);
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viewport.voi.windowCenter = -500;
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viewport.voi.windowWidth = 1500;
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cornerstone.setViewport(dicom_element, viewport);
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sel.selectedIndex = find_option(sel, "window");
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changeControlSelection();
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break;
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}
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case "brain": {
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const viewport = cornerstone.getViewport(dicom_element);
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viewport.voi.windowCenter = 50;
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viewport.voi.windowWidth = 80;
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cornerstone.setViewport(dicom_element, viewport);
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sel.selectedIndex = find_option(sel, "window");
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changeControlSelection();
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break;
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}
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case "bone": {
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const viewport = cornerstone.getViewport(dicom_element);
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viewport.voi.windowCenter = 570;
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viewport.voi.windowWidth = 3000;
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cornerstone.setViewport(dicom_element, viewport);
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sel.selectedIndex = find_option(sel, "window");
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changeControlSelection();
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break;
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}
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case "reset": {
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cornerstone.reset(dicom_element);
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sel.selectedIndex = old;
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sel.oldSelectedIndex = old;
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break;
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}
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case "close": {
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// disable fullscreen if required
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if ($(".canvas-panel").length == 0) {
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disableFullscreen(dicom_element);
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}
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if (dicom_element != undefined) {
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// See https://github.com/cornerstonejs/cornerstoneTools/issues/1337
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cornerstone.removeElementData(dicom_element);
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cornerstone.disable(dicom_element);
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$(".canvas-panel").remove();
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$(".figure-open").removeClass("figure-open").addClass("figure");
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$(dicom_element).remove();
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}
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break;
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}
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}
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sel.blur();
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if (event) {
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event.preventDefault();
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}
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}
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/**
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* Handle key button events
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* These are the same as in the RCR pratique implementation
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* @param {*} event - KeyEvent
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*/
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export function keydown_handler(event) {
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//console.log(event);
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const target_element = event.target.tagName;
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// Cancel if no active element
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let dicom_element = document.getElementById("dicom-image");
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if (dicom_element == undefined) {
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return;
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}
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// Catch all keypresses unless user is typing
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if (target_element == "INPUT" || target_element == "TEXTAREA") {
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return;
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}
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const sel = $(".control-overlay").get(0);
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switch (event.code) {
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case "KeyP":
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sel.selectedIndex = find_option(sel, "pan");
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changeControlSelection();
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break;
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case "KeyZ":
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sel.selectedIndex = find_option(sel, "zoom");
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changeControlSelection();
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break;
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case "KeyR":
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sel.selectedIndex = find_option(sel, "rotate");
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changeControlSelection();
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break;
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case "KeyS":
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sel.selectedIndex = find_option(sel, "scroll");
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changeControlSelection();
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break;
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case "KeyW":
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sel.selectedIndex = find_option(sel, "window");
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changeControlSelection();
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break;
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case "KeyA":
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sel.selectedIndex = find_option(sel, "abdomen");
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changeControlSelection();
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break;
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case "KeyU":
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sel.selectedIndex = find_option(sel, "pulmonary");
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changeControlSelection();
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break;
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case "KeyB":
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sel.selectedIndex = find_option(sel, "brain");
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changeControlSelection();
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break;
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case "KeyO":
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sel.selectedIndex = find_option(sel, "bone");
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changeControlSelection();
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break;
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case "KeyE":
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sel.selectedIndex = find_option(sel, "reset");
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// $("#dicom-image").get(0).scrollIntoView(false);
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changeControlSelection();
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break;
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// Escape and C do the same
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case "KeyC":
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case "Escape":
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sel.selectedIndex = find_option(sel, "close");
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changeControlSelection();
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break;
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case "Enter":
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t.focus();
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break;
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// TODO: implement arrow stuff
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//
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case "ArrowUp": {
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// Arrow function depends on the currently selected option
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switch (sel.options[sel.selectedIndex].value) {
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case "pan":
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manualPanDicom(0, -1);
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break;
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case "zoom":
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// _this.current_dicom.current_view.pre_scale_at(1.01, 1.01, _this.current_dicom.cols / 2, _this.current_dicom.rows / 2);
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manualZoomDicom(1);
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break;
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case "rotate":
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manualRotateDicom(-1);
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break;
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case "scroll":
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manualScrollDicom(-1);
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break;
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case "window":
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manualWindowDicom(1, 0);
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break;
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}
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break;
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}
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case "ArrowDown": {
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switch (sel.options[sel.selectedIndex].value) {
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case "pan":
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manualPanDicom(0, 1);
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break;
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case "zoom":
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manualZoomDicom(-1);
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break;
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case "rotate":
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manualRotateDicom(1);
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break;
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case "scroll":
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manualScrollDicom(1);
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break;
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case "window":
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manualWindowDicom(-1, 0);
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break;
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}
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break;
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}
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case "ArrowLeft": {
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switch (sel.options[sel.selectedIndex].value) {
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case "pan":
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manualPanDicom(-1, 0);
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break;
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case "zoom":
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manualZoomDicom(-1);
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break;
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case "rotate":
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manualRotateDicom(1);
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break;
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case "scroll":
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manualScrollDicom(1);
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break;
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case "window":
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manualWindowDicom(0, -1);
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break;
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}
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break;
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}
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case "ArrowRight": {
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switch (sel.options[sel.selectedIndex].value) {
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case "pan":
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manualPanDicom(1, 0);
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break;
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case "zoom":
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manualZoomDicom(1);
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break;
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case "rotate":
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manualRotateDicom(-1);
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break;
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case "scroll":
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manualScrollDicom(-1);
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break;
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case "window":
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manualWindowDicom(0, 1);
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break;
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}
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break;
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}
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}
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event.preventDefault();
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}
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/**
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* View cornstone image
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* @param {*} t
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* @param {*} source
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*/
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export function openMainImage(current_question, t, source) {
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/**
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* Load image
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* @param {*} images - list of images
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*/
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function loadAnnotation(imageId, annotation) {
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const toolStateManager =
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cornerstoneTools.globalImageIdSpecificToolStateManager;
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|
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if (annotation == undefined || annotation.length < 1) {
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return;
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}
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|
|
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let tool_state_no_id = JSON.parse(annotation);
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|
|
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let tool_state = {};
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tool_state[imageId] = tool_state_no_id;
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|
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toolStateManager.restoreToolState(tool_state);
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}
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|
async function load(images, annotations) {
|
|
//console.log("Load function", images)
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|
const imageIds = [];
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for (let i = 0; i < images.length; i++) {
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const data_url = images[i];
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const annotation = annotations[i];
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|
|
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// check stack type
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|
if (data_url.startsWith("data:image")) {
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const imageId = "base64://" + data_url.split(",")[1];
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|
|
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loadAnnotation(imageId, annotation);
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|
|
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imageIds.push(imageId);
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//} else if (data_url.startsWith("data:application/dicom")) {
|
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} else if (data_url.startsWith("data:")) {
|
|
// stack = stack.split(";")[1];
|
|
|
|
const dfile = await urltoFile(data_url, "dicom", "application/dicom");
|
|
|
|
const imageId = cornerstoneWADOImageLoader.wadouri.fileManager.add(
|
|
dfile
|
|
);
|
|
|
|
loadAnnotation(imageId, annotation);
|
|
|
|
imageIds.push(imageId);
|
|
// cornerstone.loadImage(imageId).then(function(image) {
|
|
// tempFunction(image);
|
|
// });
|
|
} else {
|
|
let url = data_url;
|
|
//if (data_url.startsWith("http")) {
|
|
// url = data_url;
|
|
//} else {
|
|
// url = window.location.href.replace(/\/\#\/?$/, "") + "/" + data_url;
|
|
//}
|
|
|
|
if (url.endsWith("dcm")) {
|
|
url = "wadouri:" + url;
|
|
}
|
|
|
|
// if there is no extension treat it as a dicom
|
|
if (/(?:\/|^)[^.\/]+$/.test(url)) {
|
|
url = "wadouri:" + url;
|
|
}
|
|
//console.log(url)
|
|
|
|
loadAnnotation(url, annotation);
|
|
|
|
imageIds.push(url);
|
|
}
|
|
}
|
|
const stack = {
|
|
currentImageIdIndex: 0,
|
|
imageIds,
|
|
};
|
|
cornerstone.loadAndCacheImage(imageIds[0]).then(function (image) {
|
|
loadMainImage(image, stack);
|
|
});
|
|
}
|
|
|
|
if (current_question) {
|
|
// Check if the figure is already loaded (or if another one is)
|
|
const open_figure = $("#dicom-image").data("figure");
|
|
const figure_to_load = source.id;
|
|
|
|
if (open_figure != undefined) {
|
|
// No full size figure / dicom loaded yet
|
|
if (figure_to_load == open_figure) {
|
|
// Scroll to the image if it is already open
|
|
document.getElementById("dicom-image").scrollIntoView();
|
|
return;
|
|
} else {
|
|
let el;
|
|
el = document.getElementById("dicom-image");
|
|
if (el != undefined) {
|
|
cornerstone.disable(el);
|
|
// Explicitly remove the dicom-image element
|
|
el.remove();
|
|
$(".canvas-panel").remove();
|
|
}
|
|
}
|
|
}
|
|
|
|
$(".figure-open").removeClass("figure-open").addClass("figure");
|
|
|
|
source.className = "figure-open";
|
|
|
|
$(".question").append(
|
|
'<div class= "canvas-panel"><div id="dicom-image" data-figure="' +
|
|
figure_to_load +
|
|
'"></div></div>'
|
|
);
|
|
|
|
let images = current_question.images[figure_to_load.split("-")[1]];
|
|
// images = current_question.images
|
|
|
|
// Make sure we have an array
|
|
if (!Array.isArray(images)) {
|
|
images = [images];
|
|
}
|
|
|
|
let annotations = [];
|
|
if (current_question.annotations) {
|
|
annotations = current_question.annotations[figure_to_load.split("-")[1]];
|
|
if (!Array.isArray(annotations)) {
|
|
annotations = [annotations];
|
|
}
|
|
}
|
|
|
|
load(images, annotations);
|
|
}
|
|
}
|
|
|
|
export function urltoFile(url, filename, mimeType) {
|
|
return fetch(url)
|
|
.then(function (res) {
|
|
return res.arrayBuffer();
|
|
})
|
|
.then(function (buf) {
|
|
return new File([buf], filename, { type: mimeType });
|
|
});
|
|
}
|