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feat: increase max zoom (#2881)

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David Luzar 2021-01-30 18:03:23 +01:00 • committed by GitHub
parent 6abf4f52ff
commit 10cd6a24b0
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4 changed files with 12 additions and 4 deletions
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9
src/components/App.tsx
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@ -52,6 +52,7 @@ import {
TAP_TWICE_TIMEOUT,
TEXT_TO_CENTER_SNAP_THRESHOLD,
TOUCH_CTX_MENU_TIMEOUT,
ZOOM_STEP,
} from "../constants";
import { loadFromBlob } from "../data";
import { isValidLibrary } from "../data/json";
@ -3709,9 +3710,15 @@ class App extends React.Component<ExcalidrawProps, AppState> {
}, 1000);
}
let newZoom = this.state.zoom.value - delta / 100;
// increase zoom steps the more zoomed-in we are (applies to >100% only)
newZoom += Math.log10(Math.max(1, this.state.zoom.value)) * -sign;
// round to nearest step
newZoom = Math.round(newZoom * ZOOM_STEP * 100) / (ZOOM_STEP * 100);
this.setState(({ zoom, offsetLeft, offsetTop }) => ({
zoom: getNewZoom(
getNormalizedZoom(zoom.value - delta / 100),
getNormalizedZoom(newZoom),
zoom,
{ left: offsetLeft, top: offsetTop },
{