Add button/hotkey to show/hide tools in viewports

Packages/lesiontracker/lib/toggleLesionTrackerTools.js

@@ -0,0 +1,41 @@
+/**
+ * Show / hide lesion tracker tools
+ */
+
+var previousStates;
+var previousActiveTool;
+
+var toolsShown = true;
+
+toggleLesionTrackerTools = function() {
+    if (toolsShown === true) {
+        // Save the current settings for later
+        previousStates = toolManager.getToolDefaultStates();
+        previousActiveTool = toolManager.getActiveTool();
+
+        // Hide the tools (set them all to disabled)
+        var toolDefaultStates = {
+            activate: [],
+            deactivate: [],
+            enable: [],
+            disable: ['lesion', 'nonTarget']
+        };
+
+        toolManager.setToolDefaultStates(toolDefaultStates);
+
+        // Using setActiveTool with no arguments activates the
+        // default tool on all available viewports
+        toolManager.setActiveTool();
+
+        toolsShown = false;
+    } else {
+        // Show the tools (reload previous states)
+        toolManager.setToolDefaultStates(previousStates);
+
+        // Using setActiveTool with no elements specified activates
+        // the specified tool on all available viewports
+        toolManager.setActiveTool(previousActiveTool);
+
+        toolsShown = true;
+    }
+};