react-konva-grid - npm Package Compare versions

Comparing version 1.0.3 to 1.0.4

package.json

 {
   "name": "react-konva-grid",
   "description": "Canvas grid to render large set of tabular data with virtualization.",
-  "version": "1.0.3",
+  "version": "1.0.4",
   "main": "dist/index.js",
@@ -11,2 +11,4 @@ "license": "MIT",
     "storybook": "start-storybook -p 9002",
+    "build-storybook": "build-storybook -c .storybook -o .out",
+    "deploy-storybook": "storybook-to-ghpages",
     "prepublish": "yarn build",
@@ -43,2 +45,3 @@ "prettier": "prettier src/**/*.tsx --write"
     "@storybook/react": "^5.3.18",
+    "@storybook/storybook-deployer": "^2.8.6",
     "@types/react": "^16.9.35",
@@ -45,0 +48,0 @@ "@types/react-dom": "^16.9.8",

src/helpers.ts

@@ -364,1 +364,43 @@ // Utilities extracted from https://github.com/bvaughn/react-window
 };
+
+
+export const getEstimatedTotalHeight = (rowCount: number, estimatedRowHeight: number, instanceProps: IInstanceProps) => {
+  let totalSizeOfMeasuredRows = 0;
+  let { lastMeasuredRowIndex, rowMetadataMap } = instanceProps
+
+  // Edge case check for when the number of items decreases while a scroll is in progress.
+  // https://github.com/bvaughn/react-window/pull/138
+  if (lastMeasuredRowIndex >= rowCount) {
+    lastMeasuredRowIndex = rowCount - 1;
+  }
+  
+  if (lastMeasuredRowIndex >= 0) {
+    const itemMetadata = rowMetadataMap[lastMeasuredRowIndex];
+    totalSizeOfMeasuredRows = itemMetadata.offset + itemMetadata.size;
+  }
+  
+  const numUnmeasuredItems = rowCount - lastMeasuredRowIndex - 1;  
+  const totalSizeOfUnmeasuredItems = numUnmeasuredItems * estimatedRowHeight;
+
+  return totalSizeOfMeasuredRows + totalSizeOfUnmeasuredItems;
+};
+
+export const getEstimatedTotalWidth = (columnCount: number, estimatedColumnWidth: number, instanceProps: IInstanceProps) => {
+  let totalSizeOfMeasuredRows = 0;
+  let { lastMeasuredColumnIndex, columnMetadataMap } = instanceProps
+  // Edge case check for when the number of items decreases while a scroll is in progress.
+  // https://github.com/bvaughn/react-window/pull/138
+  if (lastMeasuredColumnIndex >= columnCount) {
+    lastMeasuredColumnIndex = columnCount - 1;
+  }
+
+  if (lastMeasuredColumnIndex >= 0) {
+    const itemMetadata = columnMetadataMap[lastMeasuredColumnIndex];
+    totalSizeOfMeasuredRows = itemMetadata.offset + itemMetadata.size;
+  }
+
+  const numUnmeasuredItems = columnCount - lastMeasuredColumnIndex - 1;
+  const totalSizeOfUnmeasuredItems = numUnmeasuredItems * estimatedColumnWidth;
+
+  return totalSizeOfMeasuredRows + totalSizeOfUnmeasuredItems;
+};

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Improved metrics

Total package byte prevSize

339710

increased by1.1%

Lines of code

843

increased by14.69%

Worsened metrics

Dev dependency count

14

increased by7.69%

No dependency changes