"use strict";
-var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
- function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
- return new (P || (P = Promise))(function (resolve, reject) {
- function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
- function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
- function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
- step((generator = generator.apply(thisArg, _arguments || [])).next());
- });
-};
Object.defineProperty(exports, "__esModule", { value: true });
exports.BreakLineAlgorithm = void 0;
/**
* 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;
- }
+ 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; this.lineCost(items, k + 1, itemsLength - 1, lineWidthFixed) < Infinity; k--) {
+ let tmp = 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;
- });
+ }
+ return a;
}
/**
* check the total cost item[0..j].
* @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;
- }
+ if (this.totalCostAuxStorage[j] !== null) {
+ return this.totalCostAuxStorage[j];
+ }
+ let rawLineCost = 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 tmp = this.totalCostAux(items, k, lineWidth) + this.lineCost(items, k + 1, j, lineWidth) ** 3.0;
+ if (returnCost > tmp) {
+ this.prevNodes[j] = k;
+ returnCost = tmp;
}
- this.totalCostAuxStorage[j] = returnCost;
- return returnCost;
}
- });
+ this.totalCostAuxStorage[j] = returnCost;
+ return returnCost;
+ }
}
/**
* check the line cost of a line containing items[i..j]
* @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.lineCostStorage[i][j] !== null) {
+ console.log("AA");
+ 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]);
}
- if (!this.isBreakPoint(items[j])) {
+ tmpItemWidth += this.newLineWidth(items[j]);
+ if (tmpItemWidth > lineWidth) {
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;
- }
+ let returnValue = (lineWidth - tmpItemWidth);
+ this.lineCostStorage[i][j] = returnValue;
+ return returnValue;
}
- });
+ }
}
}
exports.BreakLineAlgorithm = BreakLineAlgorithm;
}
segmentedNodes(items : BoxesItem[], lineWidth : number) : BoxesItem[][]{
+
let lineWidthFixed = lineWidth;
this.totalCost(items ,lineWidthFixed);
let nodeList = this.generateBreakLineNodeList();
up = nodeList[i+1];
}
+
+
return res;
}
let a = Infinity;
for(var k=itemsLength-2; this.lineCost(items, k+1,itemsLength-1, lineWidthFixed) < Infinity; k--){
+
let tmp = this.totalCostAux(items, k, lineWidthFixed);
-
+
if (a > tmp){
this.prevNodes[itemsLength-1] = k
a = tmp;
}
+
}
-
- console.log("~~~", lineWidth);
- console.log((<CharBox>items[itemsLength-2]));
return a;
}
* @param lineWidth line width
*/
lineCost(items : BoxesItem[], i : number, j : number, lineWidth: number) : number{
- if (this.lineCostStorage[i] !== null && this.lineCostStorage[i][j] !== null){
+ if (this.lineCostStorage[i][j] !== null){
+ console.log("AA")
return this.lineCostStorage[i][j];
}
function calculateTextWidthHeight(element, style) {
return __awaiter(this, void 0, void 0, function* () {
var res = [];
+ var styleCache = {};
+ var fontCache = {};
for (var i = 0; i < element.length; i++) {
- res.push(yield calculateTextWidthHeightAux(element[i], style));
+ let item = yield calculateTextWidthHeightAux(element[i], style, styleCache, fontCache);
+ styleCache = item[1];
+ fontCache = item[2];
+ res.push(item[0]);
}
res = res.flat();
return res;
* @param preprocessed
* @param defaultFontStyle
*/
-function calculateTextWidthHeightAux(element, style) {
+function calculateTextWidthHeightAux(element, style, styleCache, fontCache) {
return __awaiter(this, void 0, void 0, function* () {
var result = [];
- let fontPair = (0, canva_1.fontStyleTofont)(style);
- if (fontPair.path.match(/\.ttc$/)) {
- var font = yield fontkit.openSync(fontPair.path, fontPair.psName);
+ var font;
+ if (style === styleCache) {
+ font = fontCache;
}
else {
- var font = yield fontkit.openSync(fontPair.path);
+ let fontPair = (0, canva_1.fontStyleTofont)(style);
+ if (fontPair.path.match(/\.ttc$/)) {
+ font = yield fontkit.openSync(fontPair.path, fontPair.psName);
+ styleCache = style;
+ fontCache = font;
+ }
+ else {
+ font = yield fontkit.openSync(fontPair.path);
+ styleCache = style;
+ fontCache = font;
+ }
}
if (!Array.isArray(element)) {
var run = font.layout(element, undefined, undefined, undefined, "ltr");
};
result.push(item);
}
- return result;
+ return [result, styleCache, fontCache];
}
else if (element[0] == "bp") {
- var beforeNewLine = yield calculateTextWidthHeightAux(element[1], style);
+ var beforeNewLine = (yield calculateTextWidthHeightAux(element[1], style, styleCache, fontCache))[0];
if (Array.isArray(beforeNewLine)) {
beforeNewLine = beforeNewLine.flat();
}
- let afterNewLine = yield calculateTextWidthHeightAux(element[2], style);
+ let afterNewLine = (yield calculateTextWidthHeightAux(element[2], style, styleCache, fontCache))[0];
if (Array.isArray(afterNewLine)) {
afterNewLine = afterNewLine.flat();
}
original: beforeNewLine,
newLined: afterNewLine,
};
- return breakPointNode;
+ return [breakPointNode, styleCache, fontCache];
}
else if (element[0] == "hglue" && !Array.isArray(element[1])) {
let hGlue = { stretchFactor: parseFloat(element[1]) };
- return hGlue;
+ return [hGlue, styleCache, fontCache];
}
else {
- return calculateTextWidthHeight(element, style);
+ return [yield calculateTextWidthHeight(element, style), styleCache, fontCache];
}
});
}
let defaultFontStyle = this.attrs.defaultFrameStyle.textStyle;
let a = yield calculateTextWidthHeight(preprocessed, defaultFontStyle);
let breakLineAlgorithms = new breakLines.BreakLineAlgorithm();
- // TODO
- //console.log(breakLineAlgorithms.totalCost(a,70));
let segmentedNodes = breakLineAlgorithms.segmentedNodes(a, this.attrs.defaultFrameStyle.width);
let segmentedNodesToBox = this.segmentedNodesToFrameBox(segmentedNodes, this.attrs.defaultFrameStyle);
let boxesFixed = this.fixenBoxesPosition(segmentedNodesToBox);
- // generate pdf7
+ // generate pdf
const doc = new PDFDocument({ size: 'A4' });
doc.pipe(fs.createWriteStream('output.pdf'));
this.grid(doc);
- yield this.putText(doc, boxesFixed);
+ let styleCache = {};
+ let fontPairCache = { path: "", psName: "" };
+ yield this.putText(doc, boxesFixed, styleCache, fontPairCache);
// putChar
doc.end();
});
}
- putText(doc, box) {
+ putText(doc, box, styleCache, fontPairCache) {
return __awaiter(this, void 0, void 0, function* () {
+ var fontPair;
if (box.textStyle !== null) {
- let fontInfo = (0, canva_1.fontStyleTofont)(box.textStyle);
- if (fontInfo.path.match(/\.ttc$/g)) {
- doc
- .font(fontInfo.path, fontInfo.psName)
- .fontSize(box.textStyle.size * 0.75);
+ if (box.textStyle == styleCache) {
+ fontPair = fontPairCache;
}
else {
- doc
- .font(fontInfo.path)
- .fontSize(box.textStyle.size * 0.75); // 0.75 must added!
+ fontPair = (0, canva_1.fontStyleTofont)(box.textStyle);
+ styleCache = box.textStyle;
+ fontPairCache = fontPair;
+ if (fontPair.path.match(/\.ttc$/g)) {
+ doc
+ .font(fontPair.path, fontPair.psName)
+ .fontSize(box.textStyle.size * 0.75);
+ }
+ else {
+ doc
+ .font(fontPair.path)
+ .fontSize(box.textStyle.size * 0.75); // 0.75 must added!
+ }
}
if (box.textStyle.color !== undefined) {
doc.fill(box.textStyle.color);
}
if (Array.isArray(box.content)) {
for (var k = 0; k < box.content.length; k++) {
- doc = yield this.putText(doc, box.content[k]);
+ let tmp = yield this.putText(doc, box.content[k], styleCache, fontPairCache);
+ doc = tmp[0];
+ styleCache = tmp[1];
+ fontPairCache = tmp[2];
}
}
else if (box.content !== null) {
yield doc.text(box.content, (box.x !== null ? box.x : undefined), (box.y !== null ? box.y : undefined));
}
}
- return doc;
+ return [doc, styleCache, fontPairCache];
});
}
;
import {tkTree} from "../parser";
-import {FontStyle, TextStyle, TextWeight, fontStyleTofont} from "../canva";
+import {FontStyle, TextStyle, TextWeight, fontStyleTofont, fontPathPSNamePair} from "../canva";
import * as fontkit from "fontkit";
import * as breakLines from "./breakLines";
const PDFDocument = require('pdfkit');
import * as fs from "fs";
+import { Style } from "util";
+import { time } from "console";
/**
return result;
}
+
+
/**
* calculate the text width and Height with a given `TextStyle`
* @param preprocessed
*/
export async function calculateTextWidthHeight(element : tkTree, style : TextStyle): Promise<BoxesItem[]> {
var res = [];
+ var styleCache = {};
+ var fontCache = {};
for (var i=0; i<element.length; i++){
- res.push(await calculateTextWidthHeightAux(element[i], style));
+ let item = await calculateTextWidthHeightAux(element[i], style, <TextStyle>styleCache, <fontkit.Font>fontCache);
+ styleCache = item[1];
+ fontCache = item[2];
+ res.push(item[0]);
}
res = res.flat();
* @param preprocessed
* @param defaultFontStyle
*/
-export async function calculateTextWidthHeightAux(element : tkTree, style : TextStyle): Promise<BoxesItem> {
+export async function calculateTextWidthHeightAux(element : tkTree,
+ style : TextStyle,
+ styleCache : TextStyle,
+ fontCache : fontkit.Font): Promise<[BoxesItem, TextStyle, fontkit.Font] > {
var result : BoxesItem = [];
-
+ var font;
+
+ if (style === styleCache){
+ font = fontCache;
+ }else {
let fontPair = fontStyleTofont(style);
+
if (fontPair.path.match(/\.ttc$/)){
- var font = await fontkit.openSync(fontPair.path, fontPair.psName);
+ font = await fontkit.openSync(fontPair.path, fontPair.psName);
+ styleCache = style;
+ fontCache = font;
+
}
else{
- var font = await fontkit.openSync(fontPair.path);
+ font = await fontkit.openSync(fontPair.path);
+ styleCache = style;
+ fontCache = font;
+ }
+
+
+
}
+
+
if (!Array.isArray(element)){
var run = font.layout(element, undefined, undefined, undefined, "ltr");
result.push(item);
}
- return result;
+ return [result, styleCache, fontCache];
}else if(element[0] == "bp"){
- var beforeNewLine = await calculateTextWidthHeightAux(element[1], style);
+
+ var beforeNewLine = (await calculateTextWidthHeightAux(element[1], style, styleCache, fontCache))[0];
if (Array.isArray(beforeNewLine)){
beforeNewLine = beforeNewLine.flat();
}
- let afterNewLine = await calculateTextWidthHeightAux(element[2], style);
+ let afterNewLine = (await calculateTextWidthHeightAux(element[2], style, styleCache, fontCache))[0];
if (Array.isArray(afterNewLine)){
afterNewLine = afterNewLine.flat();
}
newLined : afterNewLine,
}
- return breakPointNode;
+ return [breakPointNode, styleCache, fontCache];
}else if(element[0] == "hglue" && !Array.isArray(element[1])){
let hGlue : HGlue = {stretchFactor : parseFloat(element[1])}
- return hGlue;
+ return [hGlue, styleCache, fontCache];
}
else{
- return calculateTextWidthHeight(element, style);
+ return [await calculateTextWidthHeight(element, style), styleCache, fontCache];
}
}
}
public async generatePdf(){
+
// preprocessed
var preprocessed = this.mainStream;
for (var i = 0; i<this.preprocessors.length; i++){
preprocessed = this.preprocessors[i](preprocessed, this);
}
+
// generate the width and height of the stream
let defaultFontStyle : TextStyle = this.attrs.defaultFrameStyle.textStyle;
+
+
let a = await calculateTextWidthHeight(preprocessed, defaultFontStyle);
let breakLineAlgorithms = new breakLines.BreakLineAlgorithm();
- // TODO
- //console.log(breakLineAlgorithms.totalCost(a,70));
+
let segmentedNodes = breakLineAlgorithms.segmentedNodes(a, this.attrs.defaultFrameStyle.width);
let segmentedNodesToBox =
this.segmentedNodesToFrameBox(segmentedNodes, <FrameBox>this.attrs.defaultFrameStyle);
-
let boxesFixed = this.fixenBoxesPosition(segmentedNodesToBox);
- // generate pdf7
+ // generate pdf
const doc = new PDFDocument({size: 'A4'});
doc.pipe(fs.createWriteStream('output.pdf'));
this.grid(doc);
- await this.putText(doc, boxesFixed);
+ let styleCache : any = {};
+ let fontPairCache : fontPathPSNamePair = {path : "", psName : ""};
+ await this.putText(doc, boxesFixed, <TextStyle>styleCache, fontPairCache);
// putChar
doc.end();
+
}
- async putText(doc : PDFKit.PDFDocument, box : Box): Promise<PDFKit.PDFDocument>{
+ async putText(doc : PDFKit.PDFDocument, box : Box, styleCache : TextStyle,
+ fontPairCache : fontPathPSNamePair):
+ Promise<[PDFKit.PDFDocument, TextStyle, fontPathPSNamePair]>{
+ var fontPair;
+
if (box.textStyle !== null){
- let fontInfo = fontStyleTofont(box.textStyle);
-
- if (fontInfo.path.match(/\.ttc$/g)){
- doc
- .font(fontInfo.path, fontInfo.psName)
- .fontSize(box.textStyle.size * 0.75);}
- else{
- doc
- .font(fontInfo.path)
- .fontSize(box.textStyle.size * 0.75); // 0.75 must added!
- }
+
+ if(box.textStyle == styleCache){
+ fontPair = fontPairCache;
+ }else{
+ fontPair = fontStyleTofont(box.textStyle);
+ styleCache = box.textStyle;
+ fontPairCache = fontPair;
+
+ if (fontPair.path.match(/\.ttc$/g)){
+ doc
+ .font(fontPair.path, fontPair.psName)
+ .fontSize(box.textStyle.size * 0.75);}
+ else{
+ doc
+ .font(fontPair.path)
+ .fontSize(box.textStyle.size * 0.75); // 0.75 must added!
+ }
+ }
if (box.textStyle.color !== undefined){
doc.fill(box.textStyle.color);
if (Array.isArray(box.content)){
for (var k=0; k<box.content.length; k++){
- doc = await this.putText(doc, box.content[k]);
+ let tmp = await this.putText(doc, box.content[k], styleCache, fontPairCache);
+ doc = tmp[0];
+ styleCache = tmp[1];
+ fontPairCache = tmp[2];
}
}else if (box.content !== null){
await doc.text(box.content,
}
}
- return doc;
+
+
+ return [doc, styleCache, fontPairCache];
};
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