76 lines
2.1 KiB
TypeScript
76 lines
2.1 KiB
TypeScript
import type { ElementsMap, ExcalidrawTextElement } from "../../element/types";
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import { refreshTextDimensions } from "../../element/newElement";
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import StatsDragInput from "./DragInput";
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import type { DragInputCallbackType } from "./DragInput";
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import { mutateElement } from "../../element/mutateElement";
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import { getStepSizedValue } from "./utils";
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interface FontSizeProps {
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element: ExcalidrawTextElement;
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elementsMap: ElementsMap;
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}
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const MIN_FONT_SIZE = 4;
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const STEP_SIZE = 4;
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const FontSize = ({ element, elementsMap }: FontSizeProps) => {
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const handleFontSizeChange: DragInputCallbackType = (
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accumulatedChange,
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instantChange,
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stateAtStart,
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shouldKeepAspectRatio,
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shouldChangeByStepSize,
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nextValue,
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) => {
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const _stateAtStart = stateAtStart[0];
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if (_stateAtStart) {
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if (nextValue) {
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const nextFontSize = Math.max(Math.round(nextValue), MIN_FONT_SIZE);
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const newElement = {
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...element,
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fontSize: nextFontSize,
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};
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const updates = refreshTextDimensions(newElement, null, elementsMap);
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mutateElement(element, {
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...updates,
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fontSize: nextFontSize,
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});
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return;
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}
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if (_stateAtStart.type === "text") {
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const originalFontSize = Math.round(_stateAtStart.fontSize);
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const changeInFontSize = Math.round(accumulatedChange);
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let nextFontSize = Math.max(
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originalFontSize + changeInFontSize,
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MIN_FONT_SIZE,
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);
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if (shouldChangeByStepSize) {
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nextFontSize = getStepSizedValue(nextFontSize, STEP_SIZE);
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}
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const newElement = {
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...element,
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fontSize: nextFontSize,
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};
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const updates = refreshTextDimensions(newElement, null, elementsMap);
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mutateElement(element, {
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...updates,
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fontSize: nextFontSize,
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});
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}
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}
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};
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return (
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<StatsDragInput
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label="F"
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value={Math.round(element.fontSize * 10) / 10}
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elements={[element]}
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dragInputCallback={handleFontSizeChange}
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/>
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);
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};
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export default FontSize;
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