Method setup

src/index.js:114–131

* Initializes an array of empty columns * and calculates the leftover whitespace. * * @return {{cols: Array, wSpace: number}} * @private

()

   * @private
   */
  setup () {
    let width = this.container.getBoundingClientRect().width;
    let colWidth = this.colWidth();
    let numCols = Math.floor(width/colWidth) || 1;
    let cols = [];

    if (this.maxColumns && numCols > this.maxColumns) {
      numCols = this.maxColumns;
    }

    for (let i = 0; i < numCols; i++) {
      cols[i] = {height: 0, index: i};
    }

    let wSpace = width - numCols * colWidth + this.gutter;

    return {cols, wSpace};
  }

  /**
   * Gets the next available column.