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feat: add line height attribute to text element (#6360)

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* feat: add line height attribute to text element

* lint

* update line height when redrawing text bounding box

* fix tests

* retain line height when pasting styles

* fix test

* create a util for calculating ling height using old algo

* update line height when resizing multiple text elements

* make line height backward compatible

* udpate line height for older element when font size updated

* remove logs

* Add specs

* lint

* review fixes

* simplify by changing `lineHeight` from px to unitless

* make param non-optional

* update comment

* fix: jumping text due to font size being calculated incorrectly

* update line height when font family is updated

* lint

* Add spec

* more specs

* rename to getDefaultLineHeight

* fix getting lineHeight for potentially undefined fontFamily

* reduce duplication

* fix fallback

* refactor and comment tweaks

* fix

---------

Co-authored-by: dwelle <luzar.david@gmail.com>
This commit is contained in:
Aakansha Doshi 2023-03-22 11:32:38 +05:30 • committed by GitHub
parent ac4c8b3ca7
commit 83383977f5
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18 changed files with 326 additions and 143 deletions
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5
src/element/types.ts
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@ -135,6 +135,11 @@ export type ExcalidrawTextElement = _ExcalidrawElementBase &
verticalAlign: VerticalAlign;
containerId: ExcalidrawGenericElement["id"] | null;
originalText: string;
/**
* Unitless line height (aligned to W3C). To get line height in px, multiply
* with font size (using `getLineHeightInPx` helper).
*/
lineHeight: number & { _brand: "unitlessLineHeight" };
}>;
export type ExcalidrawBindableElement =