Fixed internal calculations for TextPath to return correct width and height

CHANGELOG.md

@@ -3,6 +3,10 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+## 10.0.2 (2025-09-10)
+
+- Fixed internal calculations for `TextPath` to return correct width and height
+
 ## 10.0.1 (2025-09-09)
 
 - Fixed `line-through` render for center/right aligned text

src/shapes/TextPath.ts

@@ -119,8 +119,8 @@ export class TextPath extends Shape<TextPathConfig> {
     }
 
     const totalLength = this.pathLength;
-    // -1px for rounding of the last symbol
+
-    if (length - 1 > totalLength) {
+    if (length > totalLength) {
       return null;
     }
 

test/unit/Text-test.ts

@@ -1112,10 +1112,19 @@ describe('Text', function () {
     layer.add(text);
     stage.add(layer);
 
-    var trace =
+    if (Konva._renderBackend === 'node-canvas') {
-      'clearRect(0,0,578,200);save();transform(1,0,0,1,10,10);font=normal normal 40px Arial;textBaseline=alphabetic;textAlign=left;translate(0,0);save();save();beginPath();moveTo(54,44);lineTo(245,44);stroke();restore();fillStyle=black;fillText(hello world,54,34);save();beginPath();moveTo(54,24);lineTo(245,24);stroke();restore();restore();restore();';
+      var trace =
-
+        'clearRect(0,0,578,200);save();transform(1,0,0,1,10,10);font=normal normal 40px Arial;textBaseline=alphabetic;textAlign=left;translate(0,0);save();save();beginPath();moveTo(54,44);lineTo(245,44);stroke();restore();fillStyle=black;fillText(hello world,54,34);save();beginPath();moveTo(54,24);lineTo(245,24);stroke();restore();restore();restore();';
-    assert.equal(layer.getContext().getTrace(false, true), trace);
+      assert.equal(layer.getContext().getTrace(false, true), trace);
+    } else if (Konva._renderBackend === 'skia-canvas') {
+      var trace =
+        'clearRect(0,0,578,200);save();transform(1,0,0,1,10,10);font=normal normal 40px Arial;textBaseline=alphabetic;textAlign=left;translate(0,0);save();save();beginPath();moveTo(54,43);lineTo(245,43);stroke();restore();fillStyle=black;fillText(hello world,54,33);save();beginPath();moveTo(54,23);lineTo(245,23);stroke();restore();restore();restore();';
+      assert.equal(layer.getContext().getTrace(false, true), trace);
+    } else {
+      var trace =
+        'clearRect(0,0,578,200);save();transform(1,0,0,1,10,10);font=normal normal 40px Arial;textBaseline=alphabetic;textAlign=left;translate(0,0);save();save();beginPath();moveTo(54,44);lineTo(245,44);stroke();restore();fillStyle=black;fillText(hello world,54,34);save();beginPath();moveTo(54,24);lineTo(245,24);stroke();restore();restore();restore();';
+      assert.equal(layer.getContext().getTrace(false, true), trace);
+    }
   });
 
   it('text multi line with underline and strike and gradient', function () {

test/unit/TextPath-test.ts

@@ -4,7 +4,7 @@ import {
   addStage,
   Konva,
   cloneAndCompareLayer,
-  isBrowser,
+  assertAlmostEqual,
 } from './test-utils.ts';
 
 describe('TextPath', function () {
@@ -929,10 +929,36 @@ describe('TextPath', function () {
     layer.draw();
 
     var rect = textpath.getClientRect();
-    assert.equal(Math.round(rect.width), 299);
+    assert.equal(Math.round(rect.width), 298);
     assert.equal(Math.abs(Math.round(rect.height) - 171) < 2, true);
   });
 
+  it('check path calculations', function () {
+    var stage = addStage();
+    var layer = new Konva.Layer();
+    stage.add(layer);
+
+    const textpath = new Konva.TextPath({
+      align: 'center',
+      data: 'M 26.549722364755468 144.8125 A 20.34375 20.34375 0 1 0 26.549722364755468 185.5 A 20.34375 20.34375 0 1 0 26.549722364755468 144.8125',
+      fill: 'black',
+      fontFamily: 'Arial',
+      fontSize: 7,
+      fontStyle: 'normal normal',
+      letterSpacing: 0,
+      text: '1234567890qwertyuiop[asdfhjkllzxncnm,../',
+      textBaseline: 'middle',
+      visible: true,
+      x: 0,
+      y: 0,
+    });
+    layer.add(textpath);
+
+    const box = textpath.getSelfRect();
+    assertAlmostEqual(box.width, 47, 1);
+    assertAlmostEqual(box.height, 47, 1);
+  });
+
   it.skip('check vertical text path', function () {
     var stage = addStage();
 

test/unit/test-utils.ts

@@ -395,12 +395,12 @@ export function simulatePointerUp(stage: Stage, pos: SimulatedPointerEvent) {
   // Konva.DD._endDragAfter(evt);
 }
 
-function isClose(a, b) {
+function isClose(a, b, tol = 0.000001) {
-  return Math.abs(a - b) < 0.000001;
+  return Math.abs(a - b) < tol;
 }
 
-export const assertAlmostEqual = function (val1, val2) {
+export const assertAlmostEqual = function (val1, val2, tol = 0.000001) {
-  if (!isClose(val1, val2)) {
+  if (!isClose(val1, val2, tol)) {
     throw new Error('Expected ' + val1 + ' to be almost equal to ' + val2);
   }
 };