@instructure/canvas-rce
Version:
A component wrapping Canvas's usage of Tinymce
40 lines (39 loc) • 1.66 kB
JavaScript
/*
* Copyright (C) 2022 - present Instructure, Inc.
*
* This file is part of Canvas.
*
* Canvas is free software: you can redistribute it and/or modify it under
* the terms of the GNU Affero General Public License as published by the Free
* Software Foundation, version 3 of the License.
*
* Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
* details.
*
* You should have received a copy of the GNU Affero General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import { BUTTON_ROTATION_DEGREES, MAX_SCALE_RATIO, MIN_SCALE_RATIO } from '../constants';
import round from '../../round';
export const calculateScaleRatio = scaleRatio => {
let result = round(scaleRatio);
result = result > MAX_SCALE_RATIO ? MAX_SCALE_RATIO : result;
result = result < MIN_SCALE_RATIO ? MIN_SCALE_RATIO : result;
return result;
};
export const calculateScalePercentage = scalePercentage => {
const result = calculateScaleRatio(scalePercentage / 100);
return round(result * 100, 0);
};
export const calculateRotation = rotationAngle => {
const simplifiedRotationAngle = round(rotationAngle % 360);
if (Math.abs(rotationAngle) >= 360) {
return simplifiedRotationAngle;
}
return rotationAngle;
};
export const getNearestRectAngle = (rotationAngle, shouldRotateToLeft) => {
return shouldRotateToLeft ? Math.ceil(rotationAngle / BUTTON_ROTATION_DEGREES) * 90 : Math.floor(rotationAngle / BUTTON_ROTATION_DEGREES) * 90;
};