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fix: improve text wrapping inside rhombus and more fixes (#6265)

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* fix: improve text wrapping inside rhombus

* Add comments

* specs

* fix: shift resize and multiple element regression for ellipse and rhombus

* use container width for scaling font size

* fix

* fix multiple resize

* lint

* redraw on submit

* redraw only newly pasted elements

* no padding when center

* fix tests

* fix

* dont add padding in rhombus when aligning

* refactor

* fix

* move getMaxContainerHeight and getMaxContainerWidth to textElement.ts

* Add specs
pull/6224/head^2
Aakansha Doshi 2 years ago committed by GitHub
parent 88ff32e9b3
commit 5368ddef74
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GPG Key ID: 4AEE18F83AFDEB23
8 changed files with 192 additions and 101 deletions
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9
src/components/App.tsx
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@ -1627,6 +1627,7 @@ class App extends React.Component<AppProps, AppState> {
oldIdToDuplicatedId.set(element.id, newElement.id);
return newElement;
});
bindTextToShapeAfterDuplication(newElements, elements, oldIdToDuplicatedId);
const nextElements = [
...this.scene.getElementsIncludingDeleted(),
@ -1640,10 +1641,10 @@ class App extends React.Component<AppProps, AppState> {
this.scene.replaceAllElements(nextElements);
nextElements.forEach((nextElement) => {
if (isTextElement(nextElement) && isBoundToContainer(nextElement)) {
const container = getContainerElement(nextElement);
redrawTextBoundingBox(nextElement, container);
newElements.forEach((newElement) => {
if (isTextElement(newElement) && isBoundToContainer(newElement)) {
const container = getContainerElement(newElement);
redrawTextBoundingBox(newElement, container);
}
});

46
src/element/newElement.ts
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@ -22,15 +22,15 @@ import { getElementAbsoluteCoords } from ".";
import { adjustXYWithRotation } from "../math";
import { getResizedElementAbsoluteCoords } from "./bounds";
import {
getBoundTextElement,
getBoundTextElementOffset,
getContainerDims,
getContainerElement,
measureText,
normalizeText,
wrapText,
getMaxContainerWidth,
} from "./textElement";
import { BOUND_TEXT_PADDING, VERTICAL_ALIGN } from "../constants";
import { VERTICAL_ALIGN } from "../constants";
import { isArrowElement } from "./typeChecks";
type ElementConstructorOpts = MarkOptional<
@ -278,48 +278,6 @@ export const refreshTextDimensions = (
return { text, ...dimensions };
};
export const getMaxContainerWidth = (container: ExcalidrawElement) => {
const width = getContainerDims(container).width;
if (isArrowElement(container)) {
const containerWidth = width - BOUND_TEXT_PADDING * 8 * 2;
if (containerWidth <= 0) {
const boundText = getBoundTextElement(container);
if (boundText) {
return boundText.width;
}
return BOUND_TEXT_PADDING * 8 * 2;
}
return containerWidth;
} else if (container.type === "ellipse") {
// The width of the largest rectangle inscribed inside an ellipse is
// Math.round((ellipse.width / 2) * Math.sqrt(2)) which is derived from
// equation of an ellipse -https://github.com/excalidraw/excalidraw/pull/6172
return Math.round((width / 2) * Math.sqrt(2)) - BOUND_TEXT_PADDING * 2;
}
return width - BOUND_TEXT_PADDING * 2;
};
export const getMaxContainerHeight = (container: ExcalidrawElement) => {
const height = getContainerDims(container).height;
if (isArrowElement(container)) {
const containerHeight = height - BOUND_TEXT_PADDING * 8 * 2;
if (containerHeight <= 0) {
const boundText = getBoundTextElement(container);
if (boundText) {
return boundText.height;
}
return BOUND_TEXT_PADDING * 8 * 2;
}
return height;
} else if (container.type === "ellipse") {
// The height of the largest rectangle inscribed inside an ellipse is
// Math.round((ellipse.height / 2) * Math.sqrt(2)) which is derived from
// equation of an ellipse - https://github.com/excalidraw/excalidraw/pull/6172
return Math.round((height / 2) * Math.sqrt(2)) - BOUND_TEXT_PADDING * 2;
}
return height - BOUND_TEXT_PADDING * 2;
};
export const updateTextElement = (
textElement: ExcalidrawTextElement,
{

26
src/element/resizeElements.ts
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@ -43,12 +43,12 @@ import {
getApproxMinLineWidth,
getBoundTextElement,
getBoundTextElementId,
getBoundTextElementOffset,
getContainerElement,
handleBindTextResize,
measureText,
getMaxContainerHeight,
getMaxContainerWidth,
} from "./textElement";
import { getMaxContainerWidth } from "./newElement";
export const normalizeAngle = (angle: number): number => {
if (angle >= 2 * Math.PI) {
@ -427,12 +427,16 @@ export const resizeSingleElement = (
};
}
if (shouldMaintainAspectRatio) {
const boundTextElementPadding =
getBoundTextElementOffset(boundTextElement);
const updatedElement = {
...element,
width: eleNewWidth,
height: eleNewHeight,
};
const nextFont = measureFontSizeFromWH(
boundTextElement,
eleNewWidth - boundTextElementPadding * 2,
eleNewHeight - boundTextElementPadding * 2,
getMaxContainerWidth(updatedElement),
getMaxContainerHeight(updatedElement),
);
if (nextFont === null) {
return;
@ -697,11 +701,15 @@ const resizeMultipleElements = (
const boundTextElement = getBoundTextElement(element.latest);
if (boundTextElement || isTextElement(element.orig)) {
const optionalPadding = getBoundTextElementOffset(boundTextElement) * 2;
const updatedElement = {
...element.latest,
width,
height,
};
const textMeasurements = measureFontSizeFromWH(
boundTextElement ?? (element.orig as ExcalidrawTextElement),
width - optionalPadding,
height - optionalPadding,
getMaxContainerWidth(updatedElement),
getMaxContainerHeight(updatedElement),
);
if (!textMeasurements) {

81
src/element/textElement.test.ts
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@ -3,6 +3,8 @@ import { API } from "../tests/helpers/api";
import {
computeContainerHeightForBoundText,
getContainerCoords,
getMaxContainerWidth,
getMaxContainerHeight,
measureText,
wrapText,
} from "./textElement";
@ -202,24 +204,37 @@ describe("Test measureText", () => {
describe("Test getContainerCoords", () => {
const params = { width: 200, height: 100, x: 10, y: 20 };
it("should compute coords correctly when ellipse", () => {
const ellipse = API.createElement({
const element = API.createElement({
type: "ellipse",
...params,
});
expect(getContainerCoords(ellipse)).toEqual({
expect(getContainerCoords(element)).toEqual({
x: 44.2893218813452455,
y: 39.64466094067262,
});
});
it("should compute coords correctly when rectangle", () => {
const rectangle = API.createElement({
const element = API.createElement({
type: "rectangle",
...params,
});
expect(getContainerCoords(rectangle)).toEqual({
x: 10,
y: 20,
expect(getContainerCoords(element)).toEqual({
x: 15,
y: 25,
});
});
it("should compute coords correctly when diamond", () => {
const element = API.createElement({
type: "diamond",
...params,
});
expect(getContainerCoords(element)).toEqual({
x: 65,
y: 50,
});
});
});
@ -229,6 +244,7 @@ describe("Test measureText", () => {
width: 178,
height: 194,
};
it("should compute container height correctly for rectangle", () => {
const element = API.createElement({
type: "rectangle",
@ -236,6 +252,7 @@ describe("Test measureText", () => {
});
expect(computeContainerHeightForBoundText(element, 150)).toEqual(160);
});
it("should compute container height correctly for ellipse", () => {
const element = API.createElement({
type: "ellipse",
@ -243,5 +260,57 @@ describe("Test measureText", () => {
});
expect(computeContainerHeightForBoundText(element, 150)).toEqual(212);
});
it("should compute container height correctly for diamond", () => {
const element = API.createElement({
type: "diamond",
...params,
});
expect(computeContainerHeightForBoundText(element, 150)).toEqual(300);
});
});
describe("Test getMaxContainerWidth", () => {
const params = {
width: 178,
height: 194,
};
it("should return max width when container is rectangle", () => {
const container = API.createElement({ type: "rectangle", ...params });
expect(getMaxContainerWidth(container)).toBe(168);
});
it("should return max width when container is ellipse", () => {
const container = API.createElement({ type: "ellipse", ...params });
expect(getMaxContainerWidth(container)).toBe(116);
});
it("should return max width when container is diamond", () => {
const container = API.createElement({ type: "diamond", ...params });
expect(getMaxContainerWidth(container)).toBe(79);
});
});
describe("Test getMaxContainerHeight", () => {
const params = {
width: 178,
height: 194,
};
it("should return max height when container is rectangle", () => {
const container = API.createElement({ type: "rectangle", ...params });
expect(getMaxContainerHeight(container)).toBe(184);
});
it("should return max height when container is ellipse", () => {
const container = API.createElement({ type: "ellipse", ...params });
expect(getMaxContainerHeight(container)).toBe(127);
});
it("should return max height when container is diamond", () => {
const container = API.createElement({ type: "diamond", ...params });
expect(getMaxContainerHeight(container)).toBe(87);
});
});
});

97
src/element/textElement.ts
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@ -12,7 +12,6 @@ import { BOUND_TEXT_PADDING, TEXT_ALIGN, VERTICAL_ALIGN } from "../constants";
import { MaybeTransformHandleType } from "./transformHandles";
import Scene from "../scene/Scene";
import { isTextElement } from ".";
import { getMaxContainerHeight, getMaxContainerWidth } from "./newElement";
import {
isBoundToContainer,
isImageElement,
@ -244,31 +243,25 @@ const computeBoundTextPosition = (
const containerCoords = getContainerCoords(container);
const maxContainerHeight = getMaxContainerHeight(container);
const maxContainerWidth = getMaxContainerWidth(container);
const padding = container.type === "ellipse" ? 0 : BOUND_TEXT_PADDING;
let x;
let y;
if (boundTextElement.verticalAlign === VERTICAL_ALIGN.TOP) {
y = containerCoords.y + padding;
y = containerCoords.y;
} else if (boundTextElement.verticalAlign === VERTICAL_ALIGN.BOTTOM) {
y =
containerCoords.y +
(maxContainerHeight - boundTextElement.height + padding);
y = containerCoords.y + (maxContainerHeight - boundTextElement.height);
} else {
y =
containerCoords.y +
(maxContainerHeight / 2 - boundTextElement.height / 2 + padding);
(maxContainerHeight / 2 - boundTextElement.height / 2);
}
if (boundTextElement.textAlign === TEXT_ALIGN.LEFT) {
x = containerCoords.x + padding;
x = containerCoords.x;
} else if (boundTextElement.textAlign === TEXT_ALIGN.RIGHT) {
x =
containerCoords.x +
(maxContainerWidth - boundTextElement.width + padding);
x = containerCoords.x + (maxContainerWidth - boundTextElement.width);
} else {
x =
containerCoords.x +
(maxContainerWidth / 2 - boundTextElement.width / 2 + padding);
containerCoords.x + (maxContainerWidth / 2 - boundTextElement.width / 2);
}
return { x, y };
};
@ -636,21 +629,23 @@ export const getContainerCenter = (
};
export const getContainerCoords = (container: NonDeletedExcalidrawElement) => {
let offsetX = BOUND_TEXT_PADDING;
let offsetY = BOUND_TEXT_PADDING;
if (container.type === "ellipse") {
// The derivation of coordinates is explained in https://github.com/excalidraw/excalidraw/pull/6172
const offsetX =
(container.width / 2) * (1 - Math.sqrt(2) / 2) + BOUND_TEXT_PADDING;
const offsetY =
(container.height / 2) * (1 - Math.sqrt(2) / 2) + BOUND_TEXT_PADDING;
offsetX += (container.width / 2) * (1 - Math.sqrt(2) / 2);
offsetY += (container.height / 2) * (1 - Math.sqrt(2) / 2);
}
// The derivation of coordinates is explained in https://github.com/excalidraw/excalidraw/pull/6265
if (container.type === "diamond") {
offsetX += container.width / 4;
offsetY += container.height / 4;
}
return {
x: container.x + offsetX,
y: container.y + offsetY,
};
}
return {
x: container.x,
y: container.y,
};
};
export const getTextElementAngle = (textElement: ExcalidrawTextElement) => {
@ -767,5 +762,63 @@ export const computeContainerHeightForBoundText = (
if (isArrowElement(container)) {
return boundTextElementHeight + BOUND_TEXT_PADDING * 8 * 2;
}
if (container.type === "diamond") {
return 2 * boundTextElementHeight;
}
return boundTextElementHeight + BOUND_TEXT_PADDING * 2;
};
export const getMaxContainerWidth = (container: ExcalidrawElement) => {
const width = getContainerDims(container).width;
if (isArrowElement(container)) {
const containerWidth = width - BOUND_TEXT_PADDING * 8 * 2;
if (containerWidth <= 0) {
const boundText = getBoundTextElement(container);
if (boundText) {
return boundText.width;
}
return BOUND_TEXT_PADDING * 8 * 2;
}
return containerWidth;
}
if (container.type === "ellipse") {
// The width of the largest rectangle inscribed inside an ellipse is
// Math.round((ellipse.width / 2) * Math.sqrt(2)) which is derived from
// equation of an ellipse -https://github.com/excalidraw/excalidraw/pull/6172
return Math.round((width / 2) * Math.sqrt(2)) - BOUND_TEXT_PADDING * 2;
}
if (container.type === "diamond") {
// The width of the largest rectangle inscribed inside a rhombus is
// Math.round(width / 2) - https://github.com/excalidraw/excalidraw/pull/6265
return Math.round(width / 2) - BOUND_TEXT_PADDING * 2;
}
return width - BOUND_TEXT_PADDING * 2;
};
export const getMaxContainerHeight = (container: ExcalidrawElement) => {
const height = getContainerDims(container).height;
if (isArrowElement(container)) {
const containerHeight = height - BOUND_TEXT_PADDING * 8 * 2;
if (containerHeight <= 0) {
const boundText = getBoundTextElement(container);
if (boundText) {
return boundText.height;
}
return BOUND_TEXT_PADDING * 8 * 2;
}
return height;
}
if (container.type === "ellipse") {
// The height of the largest rectangle inscribed inside an ellipse is
// Math.round((ellipse.height / 2) * Math.sqrt(2)) which is derived from
// equation of an ellipse - https://github.com/excalidraw/excalidraw/pull/6172
return Math.round((height / 2) * Math.sqrt(2)) - BOUND_TEXT_PADDING * 2;
}
if (container.type === "diamond") {
// The height of the largest rectangle inscribed inside a rhombus is
// Math.round(height / 2) - https://github.com/excalidraw/excalidraw/pull/6265
return Math.round(height / 2) - BOUND_TEXT_PADDING * 2;
}
return height - BOUND_TEXT_PADDING * 2;
};

12
src/element/textWysiwyg.test.tsx
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@ -791,7 +791,7 @@ describe("textWysiwyg", () => {
text = h.elements[1] as ExcalidrawTextElementWithContainer;
expect(text.text).toBe("Hello \nWorld!");
expect(text.originalText).toBe("Hello World!");
expect(text.y).toBe(27.5);
expect(text.y).toBe(57.5);
expect(text.x).toBe(rectangle.x + BOUND_TEXT_PADDING);
expect(text.height).toBe(APPROX_LINE_HEIGHT * 2);
expect(text.width).toBe(rectangle.width - BOUND_TEXT_PADDING * 2);
@ -825,7 +825,7 @@ describe("textWysiwyg", () => {
expect(text.text).toBe("Hello");
expect(text.originalText).toBe("Hello");
expect(text.y).toBe(40);
expect(text.y).toBe(57.5);
expect(text.x).toBe(rectangle.x + BOUND_TEXT_PADDING);
expect(text.height).toBe(APPROX_LINE_HEIGHT);
expect(text.width).toBe(rectangle.width - BOUND_TEXT_PADDING * 2);
@ -930,6 +930,8 @@ describe("textWysiwyg", () => {
editor.select();
fireEvent.click(screen.getByTitle("Left"));
await new Promise((r) => setTimeout(r, 0));
fireEvent.click(screen.getByTitle("Align bottom"));
await new Promise((r) => setTimeout(r, 0));
@ -1278,7 +1280,7 @@ describe("textWysiwyg", () => {
expect([h.elements[1].x, h.elements[1].y]).toMatchInlineSnapshot(`
Array [
15,
20,
25,
]
`);
});
@ -1290,7 +1292,7 @@ describe("textWysiwyg", () => {
expect([h.elements[1].x, h.elements[1].y]).toMatchInlineSnapshot(`
Array [
-25,
20,
25,
]
`);
});
@ -1302,7 +1304,7 @@ describe("textWysiwyg", () => {
expect([h.elements[1].x, h.elements[1].y]).toMatchInlineSnapshot(`
Array [
174,
20,
25,
]
`);
});

13
src/element/textWysiwyg.tsx
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@ -24,14 +24,16 @@ import { mutateElement } from "./mutateElement";
import {
getApproxLineHeight,
getBoundTextElementId,
getBoundTextElementOffset,
getContainerCoords,
getContainerDims,
getContainerElement,
getTextElementAngle,
getTextWidth,
normalizeText,
redrawTextBoundingBox,
wrapText,
getMaxContainerHeight,
getMaxContainerWidth,
} from "./textElement";
import {
actionDecreaseFontSize,
@ -39,7 +41,6 @@ import {
} from "../actions/actionProperties";
import { actionZoomIn, actionZoomOut } from "../actions/actionCanvas";
import App from "../components/App";
import { getMaxContainerHeight, getMaxContainerWidth } from "./newElement";
import { LinearElementEditor } from "./linearElementEditor";
import { parseClipboard } from "../clipboard";
@ -231,10 +232,6 @@ export const textWysiwyg = ({
// Start pushing text upward until a diff of 30px (padding)
// is reached
else {
const padding =
container.type === "ellipse"
? 0
: getBoundTextElementOffset(updatedTextElement);
const containerCoords = getContainerCoords(container);
// vertically center align the text
@ -245,8 +242,7 @@ export const textWysiwyg = ({
}
}
if (verticalAlign === VERTICAL_ALIGN.BOTTOM) {
coordY =
containerCoords.y + (maxHeight - textElementHeight + padding);
coordY = containerCoords.y + (maxHeight - textElementHeight);
}
}
}
@ -616,6 +612,7 @@ export const textWysiwyg = ({
),
});
}
redrawTextBoundingBox(updateElement, container);
}
onSubmit({

7
src/tests/linearElementEditor.test.tsx
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@ -17,8 +17,11 @@ import { KEYS } from "../keys";
import { LinearElementEditor } from "../element/linearElementEditor";
import { queryByTestId, queryByText } from "@testing-library/react";
import { resize, rotate } from "./utils";
import { getBoundTextElementPosition, wrapText } from "../element/textElement";
import { getMaxContainerWidth } from "../element/newElement";
import {
getBoundTextElementPosition,
wrapText,
getMaxContainerWidth,
} from "../element/textElement";
import * as textElementUtils from "../element/textElement";
import { ROUNDNESS } from "../constants";

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