LT-332: Fixed tool color and shadow for target tool. Moved client-only utilities to client-folder in viewerbase to speed up reloading

Packages/ohif-viewerbase/client/lib/createStacks.js

@@ -0,0 +1,123 @@
+/**
+ * Creates a set of series to be placed in the Study Browser
+ * The series that appear in the Study Browser must represent
+ * imaging modalities.
+ *
+ * Furthermore, for drag/drop functionality,
+ * it is easiest if the stack objects also contain information about
+ * which study they are linked to.
+ *
+ * @param study The study instance to be used
+ * @returns {Array} An array of series to be placed in the Study Browser
+ */
+createStacks = function(study) {
+    // Define an empty array of display sets
+    var displaySets = [];
+
+    if (!study || !study.seriesList) {
+    	return displaySets;
+    }
+
+    study.seriesList.forEach(series => {
+        // If the series has no instances, skip it
+        if (!series.instances) {
+            return;
+        }
+
+        // Search through the instances of this series
+        // Split Multi-frame instances and Single-image modalities
+        // into their own specific display sets. Place the rest of each
+        // series into another display set.
+        let stackableInstances = [];
+        series.instances.forEach(instance => {
+            // All imaging modalities must have a valid value for sopClassUid or rows
+            if (!isImage(instance.sopClassUid) && !instance.rows) {
+                return;
+            }
+
+            let displaySet;
+            if (isMultiFrame(instance)) {
+                displaySet = makeDisplaySet(series, [ instance ]);
+                displaySet.isClip = true;
+
+                // Include the study instance Uid for drag/drop purposes
+                displaySet.studyInstanceUid = study.studyInstanceUid;
+
+                // Override the default value of instances.length
+                displaySet.numImageFrames = instance.numFrames;
+
+                // Include the instance number
+                displaySet.instanceNumber = instance.instanceNumber;
+
+                // Include the acquisition datetime
+                displaySet.acquisitionDatetime = instance.acquisitionDatetime;
+
+                displaySets.push(displaySet);
+            } else if (isSingleImageModality(instance.modality)) {
+                displaySet = makeDisplaySet(series, [ instance ]);
+
+                // Include the study instance Uid
+                displaySet.studyInstanceUid = study.studyInstanceUid;
+
+                // Include the instance number
+                displaySet.instanceNumber = instance.instanceNumber;
+
+                // Include the acquisition datetime
+                displaySet.acquisitionDatetime = instance.acquisitionDatetime;
+
+                displaySets.push(displaySet);
+            } else {
+                stackableInstances.push(instance);
+            }
+        });
+
+        if (stackableInstances.length) {
+            let displaySet = makeDisplaySet(series, stackableInstances);
+            displaySet.studyInstanceUid = study.studyInstanceUid;
+            displaySets.push(displaySet);
+        }
+    });
+
+    return displaySets;
+};
+
+function makeDisplaySet(series, instances) {
+    const instance = instances[0];
+
+    let displaySet = {
+        seriesInstanceUid: series.seriesInstanceUid,
+        seriesNumber: series.seriesNumber,
+        seriesDescription: series.seriesDescription,
+        numImageFrames: instances.length,
+        frameRate: instance.frameTime,
+        images: instances,
+        modality: series.modality,
+        isMultiFrame: isMultiFrame(instance)
+    };
+
+    // Sort the images in this series
+    displaySet.images.sort(function(a, b) {
+        if (a.instanceNumber && b.instanceNumber &&
+            a.instanceNumber !== b.instanceNumber) {
+            return a.instanceNumber - b.instanceNumber;
+        }
+    });
+
+    // Include the first image instance number
+    displaySet.instanceNumber = displaySet.images[0].instanceNumber;
+
+    // Create a unique ID for this stack so we can reference it
+    displaySet.displaySetInstanceUid = Random.id();
+
+    return displaySet;
+}
+
+function isSingleImageModality(modality) {
+    return (modality === 'CR' ||
+            modality === 'MG' ||
+            modality === 'DX');
+}
+
+function isMultiFrame(instance) {
+    return instance.numFrames > 1;
+}