{"action":"created","comment":{"url":"https://api.github.com/repos/ImageEngine/gaffer/pulls/comments/75463675","id":75463675,"diff_hunk":"@@ -108,7 +114,9 @@ class ImageView : public GafferUI::View\n \t\tstatic void registerDisplayTransform( const std::string &name, DisplayTransformCreator creator );\n \t\tstatic void registeredDisplayTransforms( std::vector<std::string> &names );\n \n-\tprotected :\n+        ImageViewSignal &zoomLevelChangedSignal();","path":"include/GafferImageUI/ImageView.h","position":27,"original_position":27,"commit_id":"0e4ccd29f07fd5c3b4a695736e047b116d9b6065","original_commit_id":"0e4ccd29f07fd5c3b4a695736e047b116d9b6065","user":{"login":"johnhaddon","id":1133871,"avatar_url":"https://avatars.githubusercontent.com/u/1133871?v=3","gravatar_id":"","url":"https://api.github.com/users/johnhaddon","html_url":"https://github.com/johnhaddon","followers_url":"https://api.github.com/users/johnhaddon/followers","following_url":"https://api.github.com/users/johnhaddon/following{/other_user}","gists_url":"https://api.github.com/users/johnhaddon/gists{/gist_id}","starred_url":"https://api.github.com/users/johnhaddon/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/johnhaddon/subscriptions","organizations_url":"https://api.github.com/users/johnhaddon/orgs","repos_url":"https://api.github.com/users/johnhaddon/repos","events_url":"https://api.github.com/users/johnhaddon/events{/privacy}","received_events_url":"https://api.github.com/users/johnhaddon/received_events","type":"User","site_admin":false},"body":"Let's start with the public API - I think there should only be a `zoomLevelPlug()`. Given that, is it perhaps a case of instead blocking your connection to `cameraChangedSignal()` when you change the camera 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