+ /**
+ * check all the total cost of paragraphes of the segnemt
+ */
+ totalCost(items, lineWidth) {
+ return __awaiter(this, void 0, void 0, function* () {
+ let lineWidthFixed = lineWidth * 0.75;
+ let itemsLength = items.length;
+ this.lineCostStorage = Array(itemsLength);
+ this.prevNodes = Array(itemsLength).fill(null);
+ for (var i = 0; i < itemsLength; i++) {
+ this.lineCostStorage[i] = Array(itemsLength).fill(null);
+ }
+ this.totalCostAuxStorage = Array(itemsLength).fill(null);
+ let a = Infinity;
+ for (var k = itemsLength - 2; (yield this.lineCost(items, k + 1, itemsLength - 1, lineWidthFixed)) < Infinity; k--) {
+ let tmp = yield this.totalCostAux(items, k, lineWidthFixed);
+ if (a > tmp) {
+ this.prevNodes[itemsLength - 1] = k;
+ a = tmp;
+ }
+ }
+ console.log("~~~", lineWidth);
+ console.log(items[itemsLength - 2]);
+ return a;
+ });
+ }
+ /**
+ * check the total cost item[0..j].
+ * @param items
+ * @param i
+ * @param lineWidth
+ */
+ totalCostAux(items, j, lineWidth) {
+ return __awaiter(this, void 0, void 0, function* () {
+ if (this.totalCostAuxStorage[j] !== null) {
+ return this.totalCostAuxStorage[j];
+ }
+ let rawLineCost = yield this.lineCost(items, 0, j, lineWidth);
+ if (rawLineCost != Infinity) {
+ this.totalCostAuxStorage[j] = rawLineCost ** 3.0;
+ return rawLineCost ** 3.0;
+ }
+ else {
+ var returnCost = Infinity;
+ for (var k = 0; k < j; k++) {
+ let tmp1 = yield Promise.all([this.totalCostAux(items, k, lineWidth), this.lineCost(items, k + 1, j, lineWidth)]);
+ let tmp = tmp1[0] + tmp1[1] ** 3;
+ if (returnCost > tmp) {
+ this.prevNodes[j] = k;
+ returnCost = tmp;
+ }
+ }
+ this.totalCostAuxStorage[j] = returnCost;
+ return returnCost;
+ }
+ });
+ }
+ /**
+ * check the line cost of a line containing items[i..j]
+ * @param items items of box
+ * @param i beginning (excluded)
+ * @param j end of the line
+ * @param lineWidth line width
+ */
+ lineCost(items, i, j, lineWidth) {
+ return __awaiter(this, void 0, void 0, function* () {
+ if (this.lineCostStorage[i] !== null && this.lineCostStorage[i][j] !== null) {
+ return this.lineCostStorage[i][j];
+ }
+ if (!this.isBreakPoint(items[j])) {
+ this.lineCostStorage[i][j] = Infinity;
+ return Infinity;
+ }
+ else {
+ var tmpItemWidth = 0;
+ for (var k = i; k < j; k++) {
+ tmpItemWidth += this.origWidth(items[k]);
+ }
+ tmpItemWidth += this.newLineWidth(items[j]);
+ if (tmpItemWidth > lineWidth) {
+ this.lineCostStorage[i][j] = Infinity;
+ return Infinity;
+ }
+ else {
+ let returnValue = (lineWidth - tmpItemWidth);
+ this.lineCostStorage[i][j] = returnValue;
+ return returnValue;
+ }
+ }
+ });
+ }