fix: flag to disable auto resize (#1087)

* fix: grab cornerstone instance when called, not module load

Reduces the chance that cornerstone has not yet been registered (resulting in `undef`)

* fix: flag to disable automatic viewport resizing from window resize events

src/init.js

@@ -18,7 +18,6 @@ import windowResizeHandler from './eventListeners/windowResizeHandler.js';
 export default function(configuration = {}) {
   _addCornerstoneEventListeners();
   _initModules();
-  windowResizeHandler.enable();
 
   // Apply global configuration
   const globalConfigurationModule = getModule('globalConfiguration');
@@ -28,6 +27,10 @@ export default function(configuration = {}) {
     globalConfigurationModule.configuration,
     configuration
   );
+
+  if (globalConfigurationModule.configuration.autoResizeViewports) {
+    windowResizeHandler.enable();
+  }
 }
 
 /**

src/store/modules/globalConfigurationModule.js

@@ -3,6 +3,7 @@ const configuration = {
   touchEnabled: true,
   globalToolSyncEnabled: false,
   showSVGCursors: false,
+  autoResizeViewports: true,
 };
 
 export default {