import * as matrix from './matrix.js'; import Point from './Point.js'; var mathMin = Math.min; var mathMax = Math.max; var lt = new Point(); var rb = new Point(); var lb = new Point(); var rt = new Point(); var minTv = new Point(); var maxTv = new Point(); var BoundingRect = (function () { function BoundingRect(x, y, width, height) { if (width < 0) { x = x + width; width = -width; } if (height < 0) { y = y + height; height = -height; } this.x = x; this.y = y; this.width = width; this.height = height; } BoundingRect.prototype.union = function (other) { var x = mathMin(other.x, this.x); var y = mathMin(other.y, this.y); if (isFinite(this.x) && isFinite(this.width)) { this.width = mathMax(other.x + other.width, this.x + this.width) - x; } else { this.width = other.width; } if (isFinite(this.y) && isFinite(this.height)) { this.height = mathMax(other.y + other.height, this.y + this.height) - y; } else { this.height = other.height; } this.x = x; this.y = y; }; BoundingRect.prototype.applyTransform = function (m) { BoundingRect.applyTransform(this, this, m); }; BoundingRect.prototype.calculateTransform = function (b) { var a = this; var sx = b.width / a.width; var sy = b.height / a.height; var m = matrix.create(); matrix.translate(m, m, [-a.x, -a.y]); matrix.scale(m, m, [sx, sy]); matrix.translate(m, m, [b.x, b.y]); return m; }; BoundingRect.prototype.intersect = function (b, mtv) { if (!b) { return false; } if (!(b instanceof BoundingRect)) { b = BoundingRect.create(b); } var a = this; var ax0 = a.x; var ax1 = a.x + a.width; var ay0 = a.y; var ay1 = a.y + a.height; var bx0 = b.x; var bx1 = b.x + b.width; var by0 = b.y; var by1 = b.y + b.height; var overlap = !(ax1 < bx0 || bx1 < ax0 || ay1 < by0 || by1 < ay0); if (mtv) { var dMin = Infinity; var dMax = 0; var d0 = Math.abs(ax1 - bx0); var d1 = Math.abs(bx1 - ax0); var d2 = Math.abs(ay1 - by0); var d3 = Math.abs(by1 - ay0); var dx = Math.min(d0, d1); var dy = Math.min(d2, d3); if (ax1 < bx0 || bx1 < ax0) { if (dx > dMax) { dMax = dx; if (d0 < d1) { Point.set(maxTv, -d0, 0); } else { Point.set(maxTv, d1, 0); } } } else { if (dx < dMin) { dMin = dx; if (d0 < d1) { Point.set(minTv, d0, 0); } else { Point.set(minTv, -d1, 0); } } } if (ay1 < by0 || by1 < ay0) { if (dy > dMax) { dMax = dy; if (d2 < d3) { Point.set(maxTv, 0, -d2); } else { Point.set(maxTv, 0, d3); } } } else { if (dx < dMin) { dMin = dx; if (d2 < d3) { Point.set(minTv, 0, d2); } else { Point.set(minTv, 0, -d3); } } } } if (mtv) { Point.copy(mtv, overlap ? minTv : maxTv); } return overlap; }; BoundingRect.prototype.contain = function (x, y) { var rect = this; return x >= rect.x && x <= (rect.x + rect.width) && y >= rect.y && y <= (rect.y + rect.height); }; BoundingRect.prototype.clone = function () { return new BoundingRect(this.x, this.y, this.width, this.height); }; BoundingRect.prototype.copy = function (other) { BoundingRect.copy(this, other); }; BoundingRect.prototype.plain = function () { return { x: this.x, y: this.y, width: this.width, height: this.height }; }; BoundingRect.prototype.isFinite = function () { return isFinite(this.x) && isFinite(this.y) && isFinite(this.width) && isFinite(this.height); }; BoundingRect.prototype.isZero = function () { return this.width === 0 || this.height === 0; }; BoundingRect.create = function (rect) { return new BoundingRect(rect.x, rect.y, rect.width, rect.height); }; BoundingRect.copy = function (target, source) { target.x = source.x; target.y = source.y; target.width = source.width; target.height = source.height; }; BoundingRect.applyTransform = function (target, source, m) { if (!m) { if (target !== source) { BoundingRect.copy(target, source); } return; } if (m[1] < 1e-5 && m[1] > -1e-5 && m[2] < 1e-5 && m[2] > -1e-5) { var sx = m[0]; var sy = m[3]; var tx = m[4]; var ty = m[5]; target.x = source.x * sx + tx; target.y = source.y * sy + ty; target.width = source.width * sx; target.height = source.height * sy; if (target.width < 0) { target.x += target.width; target.width = -target.width; } if (target.height < 0) { target.y += target.height; target.height = -target.height; } return; } lt.x = lb.x = source.x; lt.y = rt.y = source.y; rb.x = rt.x = source.x + source.width; rb.y = lb.y = source.y + source.height; lt.transform(m); rt.transform(m); rb.transform(m); lb.transform(m); target.x = mathMin(lt.x, rb.x, lb.x, rt.x); target.y = mathMin(lt.y, rb.y, lb.y, rt.y); var maxX = mathMax(lt.x, rb.x, lb.x, rt.x); var maxY = mathMax(lt.y, rb.y, lb.y, rt.y); target.width = maxX - target.x; target.height = maxY - target.y; }; return BoundingRect; }()); export default BoundingRect;