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| Current File : /www/wwwroot/jdih.dprd.mukomukokab.go.id/vendor/nnnick/chartjs/src/helpers/helpers.rtl.ts |
export interface RTLAdapter {
x(x: number): number;
setWidth(w: number): void;
textAlign(align: 'center' | 'left' | 'right'): 'center' | 'left' | 'right';
xPlus(x: number, value: number): number;
leftForLtr(x: number, itemWidth: number): number;
}
const getRightToLeftAdapter = function(rectX: number, width: number): RTLAdapter {
return {
x(x) {
return rectX + rectX + width - x;
},
setWidth(w) {
width = w;
},
textAlign(align) {
if (align === 'center') {
return align;
}
return align === 'right' ? 'left' : 'right';
},
xPlus(x, value) {
return x - value;
},
leftForLtr(x, itemWidth) {
return x - itemWidth;
},
};
};
const getLeftToRightAdapter = function(): RTLAdapter {
return {
x(x) {
return x;
},
setWidth(w) { // eslint-disable-line no-unused-vars
},
textAlign(align) {
return align;
},
xPlus(x, value) {
return x + value;
},
leftForLtr(x, _itemWidth) { // eslint-disable-line @typescript-eslint/no-unused-vars
return x;
},
};
};
export function getRtlAdapter(rtl: boolean, rectX: number, width: number) {
return rtl ? getRightToLeftAdapter(rectX, width) : getLeftToRightAdapter();
}
export function overrideTextDirection(ctx: CanvasRenderingContext2D, direction: 'ltr' | 'rtl') {
let style: CSSStyleDeclaration, original: [string, string];
if (direction === 'ltr' || direction === 'rtl') {
style = ctx.canvas.style;
original = [
style.getPropertyValue('direction'),
style.getPropertyPriority('direction'),
];
style.setProperty('direction', direction, 'important');
(ctx as { prevTextDirection?: [string, string] }).prevTextDirection = original;
}
}
export function restoreTextDirection(ctx: CanvasRenderingContext2D, original?: [string, string]) {
if (original !== undefined) {
delete (ctx as { prevTextDirection?: [string, string] }).prevTextDirection;
ctx.canvas.style.setProperty('direction', original[0], original[1]);
}
}
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