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'use strict';
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/**
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* Creates an instance of Line
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*
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* @constructor
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* @this {Line}
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* @param {Number} Maximum width this line can have
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*/
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function Line(maxWidth) {
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this.maxWidth = maxWidth;
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this.leadingCut = 0;
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this.trailingCut = 0;
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this.inlineWidths = 0;
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this.inlines = [];
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}
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Line.prototype.getAscenderHeight = function () {
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var y = 0;
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this.inlines.forEach(function (inline) {
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y = Math.max(y, inline.font.ascender / 1000 * inline.fontSize);
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});
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return y;
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};
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Line.prototype.hasEnoughSpaceForInline = function (inline, nextInlines) {
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nextInlines = nextInlines || [];
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if (this.inlines.length === 0) {
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return true;
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}
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if (this.newLineForced) {
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return false;
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}
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var inlineWidth = inline.width;
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var inlineTrailingCut = inline.trailingCut || 0;
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if (inline.noNewLine) {
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for (var i = 0, l = nextInlines.length; i < l; i++) {
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var nextInline = nextInlines[i];
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inlineWidth += nextInline.width;
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inlineTrailingCut += nextInline.trailingCut || 0;
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if (!nextInline.noNewLine) {
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break;
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}
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}
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}
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return (this.inlineWidths + inlineWidth - this.leadingCut - inlineTrailingCut) <= this.maxWidth;
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};
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Line.prototype.addInline = function (inline) {
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if (this.inlines.length === 0) {
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this.leadingCut = inline.leadingCut || 0;
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}
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this.trailingCut = inline.trailingCut || 0;
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inline.x = this.inlineWidths - this.leadingCut;
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this.inlines.push(inline);
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this.inlineWidths += inline.width;
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if (inline.lineEnd) {
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this.newLineForced = true;
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}
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};
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Line.prototype.getWidth = function () {
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return this.inlineWidths - this.leadingCut - this.trailingCut;
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};
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Line.prototype.getAvailableWidth = function () {
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return this.maxWidth - this.getWidth();
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};
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/**
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* Returns line height
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* @return {Number}
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*/
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Line.prototype.getHeight = function () {
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var max = 0;
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this.inlines.forEach(function (item) {
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max = Math.max(max, item.height || 0);
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});
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return max;
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};
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module.exports = Line;
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