nehan/dist/logical-rect.js

Html layout engine for paged-media written in Typescript

export class LogicalRect {
    constructor(pos, size) {
        this.pos = pos;
        this.size = size;
    }
    toString() {
        let str = JSON.stringify({ pos: this.pos, size: this.size });
        return `rect(${str})`;
    }
    canContain(size) {
        return this.size.canContain(size);
    }
    translate(value) {
        return new LogicalRect(this.pos.translate(value), this.size);
    }
    collideWith(rect) {
        const dx = Math.abs(this.start - rect.start);
        const sx = (this.measure + rect.measure) / 2;
        const dy = Math.abs(this.before - rect.before);
        const sy = (this.extent + rect.extent) / 2;
        return dx < sx && dy < sy;
    }
    get extent() {
        return this.size.extent;
    }
    set extent(size) {
        this.size.extent = size;
    }
    get measure() {
        return this.size.measure;
    }
    set measure(size) {
        this.size.measure = size;
    }
    get start() {
        return this.pos.start;
    }
    set start(size) {
        this.pos.start = size;
    }
    get before() {
        return this.pos.before;
    }
    set before(size) {
        this.pos.before = size;
    }
    get end() {
        return this.pos.start + this.size.measure;
    }
    get after() {
        return this.pos.before + this.size.extent;
    }
}
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