add new calculateRoomLogoParams method to FilesStore

packages/client/src/store/FilesStore.js

@@ -1592,6 +1592,29 @@ class FilesStore {
     return api.rooms.removeTagsFromRoom(id, tagArray);
   }
 
+  calculateRoomLogoParams(img, x, y, zoom) {
+    let imgWidth, imgHeight, dimensions;
+    if (img.width > img.height) {
+      imgWidth = Math.min(1280, img.width);
+      imgHeight = Math.round(img.height / (img.width / imgWidth));
+      dimensions = Math.round(imgHeight / zoom);
+    } else {
+      imgHeight = Math.min(1280, img.height);
+      imgWidth = Math.round(img.width / (img.height / imgHeight));
+      dimensions = Math.round(imgWidth / zoom);
+    }
+
+    const croppedX = Math.round(x * imgWidth - dimensions / 2);
+    const croppedY = Math.round(y * imgHeight - dimensions / 2);
+
+    return {
+      x: croppedX,
+      y: croppedY,
+      width: dimensions,
+      height: dimensions,
+    };
+  }
+
   uploadRoomLogo(formData) {
     return api.rooms.uploadRoomLogo(formData);
   }