Updates to save viewport data across sessions / while switching tabs

Packages/cornerstone/client/hangingProtocol.js

@@ -0,0 +1,45 @@
+var hangingProtocol;
+
+function defaultHangingProtocol(inputData) {
+    var studies = inputData.studies;
+    var viewportRows = inputData.viewportRows;
+    var viewportColumns = inputData.viewportColumns;
+
+    // This is the most basic hanging protocol.
+    var stacks = [];
+    studies.forEach(function(study) {
+        study.seriesList.forEach(function(series) {
+            var stack = {
+                series: series,
+                study: study
+            };
+            stacks.push(stack);
+        });
+    });
+
+    var viewportData = [];
+
+    var numViewports = viewportRows * viewportColumns;
+    for (var i=0; i < numViewports; ++i) {
+        if (i >= stacks.length) {
+            // We don't have enough stacks to fill the desired number of viewports, so stop here
+            break;
+        }
+        viewportData[i] = {
+            seriesInstanceUid: stacks[i].series.seriesInstanceUid,
+            studyInstanceUid: stacks[i].study.studyInstanceUid,
+            currentImageIdIndex: 0
+        };
+    }
+    return viewportData;
+}
+
+getHangingProtocol = function() {
+    return hangingProtocol;
+};
+
+setHangingProtocol = function(protocol) {
+    hangingProtocol = protocol;
+};
+
+setHangingProtocol(defaultHangingProtocol);