Function buildMapping

docs/app/js/sanddance-app.js:99421–99453

(_ref)

    }
}
function buildMapping(_ref) {
    var icons = _ref.icons, buffer = _ref.buffer, _ref$mapping = _ref.mapping, mapping = _ref$mapping === void 0 ? {} : _ref$mapping, _ref$xOffset = _ref.xOffset, xOffset = _ref$xOffset === void 0 ? 0 : _ref$xOffset, _ref$yOffset = _ref.yOffset, yOffset = _ref$yOffset === void 0 ? 0 : _ref$yOffset, _ref$rowHeight = _ref.rowHeight, rowHeight = _ref$rowHeight === void 0 ? 0 : _ref$rowHeight, canvasWidth = _ref.canvasWidth;
    var columns = [];
    for(var i = 0; i < icons.length; i++){
        var icon = icons[i];
        var id = getIconId(icon);
        if (!mapping[id]) {
            var height = icon.height, width = icon.width;
            if (xOffset + width + buffer > canvasWidth) {
                buildRowMapping(mapping, columns, yOffset);
                xOffset = 0;
                yOffset = rowHeight + yOffset + buffer;
                rowHeight = 0;
                columns = [];
            }
            columns.push({
                icon: icon,
                xOffset: xOffset
            });
            xOffset = xOffset + width + buffer;
            rowHeight = Math.max(rowHeight, height);
        }
    }
    if (columns.length > 0) buildRowMapping(mapping, columns, yOffset);
    return {
        mapping: mapping,
        rowHeight: rowHeight,
        xOffset: xOffset,
        yOffset: yOffset,
        canvasWidth: canvasWidth,
        canvasHeight: nextPowOfTwo(rowHeight + yOffset + buffer)
    };
}
function getDiffIcons(data, getIcon, cachedIcons) {
    if (!data || !getIcon) return null;
    cachedIcons = cachedIcons || {};