X-Git-Url: https://git.kianting.info/?a=blobdiff_plain;f=src%2Flibclo%2Findex.js;h=43e410c89ec16e68d3bd84612dae41dfd047432a;hb=9c51921978468526aed0da6060900fe54967848e;hp=e5ae1bdcf4fb83f30629f92196360894a8e8b254;hpb=796e0c20c767e214b104fa3d17e754ce58da6e73;p=clo

diff --git a/src/libclo/index.js b/src/libclo/index.js
index e5ae1bd..43e410c 100644
--- a/src/libclo/index.js
+++ b/src/libclo/index.js
@@ -1,7 +1,44 @@
 "use strict";
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    var desc = Object.getOwnPropertyDescriptor(m, k);
+    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+      desc = { enumerable: true, get: function() { return m[k]; } };
+    }
+    Object.defineProperty(o, k2, desc);
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    __setModuleDefault(result, mod);
+    return result;
+};
+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.a = exports.Clo = void 0;
+exports.Clo = exports.calculateTextWidthHeightAux = exports.calculateTextWidthHeight = exports.hyphenTkTree = exports.filterEmptyString = exports.spacesToBreakpoint = exports.hyphenForClo = exports.splitCJKV = exports.twoReturnsToNewline = exports.ptToPx = exports.cjkvRegexPattern = exports.cjkvBlocksInRegex = exports.defaultFrameStyle = exports.defaultTextStyle = exports.A4_IN_PX = exports.Direction = void 0;
 const canva_1 = require("../canva");
+const fontkit = __importStar(require("fontkit"));
+const breakLines = __importStar(require("./breakLines"));
+require("pdfkit");
+const pdf_lib_1 = require("pdf-lib");
+const fs = __importStar(require("fs"));
 /**
  * TYPES
  */
@@ -17,32 +54,40 @@ var Direction;
     Direction[Direction["RTL"] = 1] = "RTL";
     Direction[Direction["TTB"] = 2] = "TTB";
     Direction[Direction["BTT"] = 3] = "BTT";
-})(Direction || (Direction = {}));
+})(Direction || (exports.Direction = Direction = {}));
 /**
  * DEFAULT CONST PART
  */
-const A4_IN_PX = { "width": 793.7,
+exports.A4_IN_PX = { "width": 793.7,
     "height": 1122.5 };
-const defaultTextStyle = {
-    family: "FreeSans",
-    size: 12,
+exports.defaultTextStyle = {
+    family: "FreeSerif",
+    size: ptToPx(12),
     textWeight: canva_1.TextWeight.REGULAR,
-    textStyle: canva_1.TextStyle.ITALIC,
+    fontStyle: canva_1.FontStyle.ITALIC,
 };
-const defaultFrameStyle = {
+exports.defaultFrameStyle = {
     directionInsideLine: Direction.LTR,
     direction: Direction.TTB,
     baseLineskip: ptToPx(15),
-    fontStyle: defaultTextStyle,
-    x: A4_IN_PX.width * 0.10,
-    y: A4_IN_PX.height * 0.10,
-    width: A4_IN_PX.width * 0.80,
-    height: A4_IN_PX.height * 0.80,
+    textStyle: exports.defaultTextStyle,
+    x: exports.A4_IN_PX.width * 0.10,
+    y: exports.A4_IN_PX.height * 0.10,
+    width: exports.A4_IN_PX.width * 0.80,
+    height: exports.A4_IN_PX.height * 0.80,
     content: null,
 };
-const cjkvBlocksInRegex = ["Hani"];
-const cjkvRegexPattern = new RegExp("((?:" +
-    cjkvBlocksInRegex.map((x) => "\\p{Script_Extensions=" + x + "}").join("|") + ")+)", "gu");
+/**
+ * definition for cjk scripts
+ *  - Hani : Han Character
+ *  - Hang : Hangul
+ *  - Bopo : Bopomofo
+ *  - Kana : Katakana
+ *  - Hira : Hiragana
+*/
+exports.cjkvBlocksInRegex = ["Hani", "Hang", "Bopo", "Kana", "Hira"];
+exports.cjkvRegexPattern = new RegExp("((?:" +
+    exports.cjkvBlocksInRegex.map((x) => "\\p{Script_Extensions=" + x + "}").join("|") + ")+)", "gu");
 /**
  * FUNCTION PART
  */
@@ -52,47 +97,249 @@ const cjkvRegexPattern = new RegExp("((?:" +
  * @returns the corresponding px value
  */
 function ptToPx(pt) {
-    return pt * 4 / 3.0;
+    return pt * 4.0 / 3.0;
 }
+exports.ptToPx = ptToPx;
 /**
  *  REGISTER PART
  */
+/**
+ * convert '\n\n' to newline command ["nl"]
+ * @param arr the input `tkTree`
+ * @param clo the `Clo` object
+ * @returns the input tktree
+ */
+function twoReturnsToNewline(arr, clo) {
+    var middle = [];
+    for (let i = 0; i < arr.length; i++) {
+        var item = arr[i];
+        if (!Array.isArray(item)) {
+            middle = middle.concat(item.split(/(\n\n)/g));
+        }
+        else {
+            middle.push(item);
+        }
+    }
+    var result = [];
+    for (let j = 0; j < middle.length; j++) {
+        var item = middle[j];
+        if (!Array.isArray(item) && item == "\n\n") {
+            result.push(["nl"]); // push a newline command to the result `tkTree`
+        }
+        else {
+            result.push(middle[j]);
+        }
+    }
+    return result;
+}
+exports.twoReturnsToNewline = twoReturnsToNewline;
 /**
  * split CJKV and non-CJKV
  *
  * @param arr : input tkTree
- * @returns
+ * @returns a splitted tkTree (by CJK and NonCJK)
+ * - Examples:
+ *  ```
+ *  [`many臺中daylight`] => [`many`, `臺中`, `dahylight`]
+ *  ```
  */
-function splitCJKV(arr) {
-    console.log(arr);
+function splitCJKV(arr, clo) {
     var result = [];
     for (let i = 0; i < arr.length; i++) {
         var item = arr[i];
         if (!Array.isArray(item)) {
-            console.log(item.split(cjkvRegexPattern));
-            result = result.concat(item.split(cjkvRegexPattern));
+            result = result.concat(item.split(exports.cjkvRegexPattern));
         }
         else {
             result.push(item);
         }
     }
-    console.log(result);
     return result;
 }
+exports.splitCJKV = splitCJKV;
+/**
+ * hyphenation for a clo document
+ * @param arr the array for a `tkTree`
+ * @param clo the Clo object
+ */
+function hyphenForClo(arr, clo) {
+    let hyphenLanguage = clo.attrs["hyphenLanguage"];
+    let res = hyphenTkTree(arr, hyphenLanguage);
+    return res;
+}
+exports.hyphenForClo = hyphenForClo;
+/**
+ * convert spaces to Breakpoint
+ * \s+ => ["bp" [\s+] ""]
+ * @param arr the tkTree input text stream
+ * @param clo the Clo object
+ * @returns the converted object
+ */
+function spacesToBreakpoint(arr, clo) {
+    let spacePattern = /^([ \t]+)$/g;
+    var result = [];
+    for (let i = 0; i < arr.length; i++) {
+        var item = arr[i];
+        if (!Array.isArray(item) && item.match(spacePattern)) {
+            // push a breakpoint command to the result `tkTree`
+            result.push(['bp', [["hglue", "0.1"], item], ""]);
+        }
+        else {
+            result.push(item);
+        }
+    }
+    return result;
+}
+exports.spacesToBreakpoint = spacesToBreakpoint;
+/**
+ * remove all the `` (empty string) in the arr
+ * @param arr the tkTree to be filtered
+ * @param clo the Clo file
+ */
+function filterEmptyString(arr, clo) {
+    if (Array.isArray(arr)) {
+        arr.filter((x) => { return x != ``; });
+    }
+    return arr;
+}
+exports.filterEmptyString = filterEmptyString;
+/**
+ * OTHER FUNCTIONS
+ */
+/**
+ * hyphenate for a tkTree
+ *  - hyphenation => ["bp", "", "-"]
+ * @param arr the tkTree array
+ * @param lang ISO 639 code for the language
+ */
+function hyphenTkTree(arr, lang) {
+    // import corresponding hyphen language data and function
+    let hyphen = require("hyphen/" + lang);
+    let result = [];
+    for (let i = 0; i < arr.length; i++) {
+        let element = arr[i];
+        let splitter = "分"; // a CJKV
+        if (!Array.isArray(element)) {
+            let hyphenatedElement = hyphen.hyphenateSync(element, { hyphenChar: splitter });
+            let hyphenatedSplitted = hyphenatedElement.split(splitter);
+            var newSplitted = [];
+            for (var j = 0; j < hyphenatedSplitted.length - 1; j++) {
+                newSplitted.push(hyphenatedSplitted[j]);
+                // "bp" for breakpoint
+                newSplitted.push(["bp", "", "-"]); //insert a breakable point (bp) mark
+            }
+            newSplitted.push(hyphenatedSplitted[hyphenatedSplitted.length - 1]);
+            result = result.concat(newSplitted);
+        }
+        else {
+            result.push(element);
+        }
+    }
+    return result;
+}
+exports.hyphenTkTree = hyphenTkTree;
+/**
+ * calculate the text width and Height with a given `TextStyle`
+ * @param preprocessed
+ * @param defaultFontStyle
+ */
+function calculateTextWidthHeight(element, style) {
+    return __awaiter(this, void 0, void 0, function* () {
+        var res = [];
+        for (var i = 0; i < element.length; i++) {
+            res.push(yield calculateTextWidthHeightAux(element[i], style));
+        }
+        res = res.flat();
+        return res;
+    });
+}
+exports.calculateTextWidthHeight = calculateTextWidthHeight;
+/**
+ * calculate the text width and Height with a given `TextStyle`
+ * @param preprocessed
+ * @param defaultFontStyle
+ */
+function calculateTextWidthHeightAux(element, style) {
+    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);
+        }
+        else {
+            var font = yield fontkit.openSync(fontPair.path);
+        }
+        if (!Array.isArray(element)) {
+            var run = font.layout(element, undefined, undefined, undefined, "ltr");
+            for (var j = 0; j < run.glyphs.length; j++) {
+                let runGlyphsItem = run.glyphs[j];
+                let item = {
+                    x: null,
+                    y: null,
+                    textStyle: style,
+                    direction: Direction.LTR,
+                    width: (runGlyphsItem.advanceWidth) * (style.size) / 1000,
+                    height: (runGlyphsItem.bbox.maxY - runGlyphsItem.bbox.minY) * (style.size) / 1000,
+                    content: element[j],
+                    minX: runGlyphsItem.bbox.minX,
+                    maxX: runGlyphsItem.bbox.maxX,
+                    minY: runGlyphsItem.bbox.minY,
+                    maxY: runGlyphsItem.bbox.maxY
+                };
+                result.push(item);
+            }
+            return result;
+        }
+        else if (element[0] == "bp") {
+            var beforeNewLine = yield calculateTextWidthHeightAux(element[1], style);
+            if (Array.isArray(beforeNewLine)) {
+                beforeNewLine = beforeNewLine.flat();
+            }
+            let afterNewLine = yield calculateTextWidthHeightAux(element[2], style);
+            if (Array.isArray(afterNewLine)) {
+                afterNewLine = afterNewLine.flat();
+            }
+            let breakPointNode = {
+                original: beforeNewLine,
+                newLined: afterNewLine,
+            };
+            return breakPointNode;
+        }
+        else if (element[0] == "hglue" && !Array.isArray(element[1])) {
+            let hGlue = { stretchFactor: parseFloat(element[1]) };
+            return hGlue;
+        }
+        else {
+            return calculateTextWidthHeight(element, style);
+        }
+    });
+}
+exports.calculateTextWidthHeightAux = calculateTextWidthHeightAux;
+/**
+ * whole document-representing class
+ */
 class Clo {
     constructor() {
         this.preprocessors = [];
         this.mainStream = [];
-        this.attributes = { "page": A4_IN_PX };
+        this.attrs = {
+            "page": exports.A4_IN_PX,
+            "defaultFrameStyle": exports.defaultFrameStyle,
+            "hyphenLanguage": 'en' // hyphenated in the language (in ISO 639)
+        };
         // register the precessor functions
         this.preprocessorRegister(splitCJKV);
+        this.preprocessorRegister(hyphenForClo);
+        this.preprocessorRegister(twoReturnsToNewline);
+        this.preprocessorRegister(spacesToBreakpoint);
+        this.preprocessorRegister(filterEmptyString);
     }
     setAttr(attr, val) {
-        Object.assign(this.attributes, attr, val);
+        Object.assign(this.attrs, attr, val);
     }
     getAttr(attr) {
-        if (Object.keys(this.attributes).length === 0) {
-            return this.attributes[attr];
+        if (Object.keys(this.attrs).length === 0) {
+            return this.attrs[attr];
         }
         else {
             return undefined;
@@ -106,15 +353,169 @@ class Clo {
         this.preprocessors.push(f);
     }
     generatePdf() {
-        // preprocessed
-        var prepro = this.mainStream;
-        for (var i = 0; i < this.preprocessors.length; i++) {
-            prepro = this.preprocessors[i](prepro);
+        return __awaiter(this, void 0, void 0, function* () {
+            // 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 = 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, 70);
+            console.log(this.segmentedNodesToFrameBox(segmentedNodes, this.attrs["defaultFrameStyle"]));
+            // generate pdf
+            const pdfDoc = yield pdf_lib_1.PDFDocument.create();
+            var page = pdfDoc.addPage();
+            page.drawText('You can create PDFs!');
+            for (var j = 0; j < 1000; j += 5) {
+                if (j % 50 == 0) {
+                    page.drawText(j.toString(), { x: 50, y: j });
+                }
+                page.drawLine({
+                    start: { x: 0, y: j },
+                    end: { x: 1000, y: j },
+                    thickness: 0.5,
+                    color: (0, pdf_lib_1.rgb)(0.75, 0.2, 0.2),
+                    opacity: 0.20,
+                });
+            }
+            for (var i = 0; i < 1000; i += 5) {
+                if (i % 50 == 0) {
+                    page.drawText(i.toString(), { x: i, y: 50 });
+                }
+                page.drawLine({
+                    start: { x: i, y: 0 },
+                    end: { x: i, y: 1000 },
+                    thickness: 0.5,
+                    color: (0, pdf_lib_1.rgb)(0.75, 0.2, 0.2),
+                    opacity: 0.20,
+                });
+            }
+            pdfDoc.save();
+            const pdfBytes = yield pdfDoc.save();
+            fs.writeFileSync("blank.pdf", pdfBytes);
+        });
+    }
+    segmentedNodesToFrameBox(segmentedNodes, frame) {
+        let baseLineskip = frame.baseLineskip;
+        let boxArrayEmpty = [];
+        let bigBox = {
+            x: frame.x,
+            y: frame.y,
+            textStyle: frame.textStyle,
+            direction: frame.direction,
+            width: frame.width,
+            height: frame.height,
+            content: boxArrayEmpty,
+        };
+        var bigBoxContent = boxArrayEmpty;
+        let segmentedNodesFixed = segmentedNodes.map((x) => this.removeBreakPoints(x).flat());
+        let segmentedNodeUnglue = segmentedNodesFixed.map((x) => this.removeGlue(x, frame).flat());
+        for (var i = 0; i < segmentedNodesFixed.length - 1; i++) {
+            var currentLineSkip = baseLineskip;
+            var glyphMaxHeight = this.getGlyphMaxHeight(segmentedNodesFixed[i]);
+            if (currentLineSkip === null || glyphMaxHeight > currentLineSkip) {
+                currentLineSkip = glyphMaxHeight;
+            }
+            var currentLineBox = {
+                x: null,
+                y: null,
+                textStyle: exports.defaultTextStyle,
+                direction: frame.directionInsideLine,
+                width: frame.width,
+                height: currentLineSkip,
+                content: segmentedNodeUnglue[i],
+            };
+            bigBoxContent.push(currentLineBox);
+        }
+        bigBox.content = bigBoxContent;
+        return bigBox;
+    }
+    /**
+     * get the max height of the glyph`[a, b, c]`
+     * @param nodeLine the node line [a, b, c, ...]
+     * @returns
+     */
+    getGlyphMaxHeight(nodeLine) {
+        let segmentedNodeLineHeight = nodeLine.map((x) => { if ("height" in x && x.height > 0.0) {
+            return x.height;
+        }
+        else {
+            return 0.0;
+        } });
+        let maxHeight = Math.max(...segmentedNodeLineHeight);
+        return maxHeight;
+    }
+    removeGlue(nodeLine, frame) {
+        let breakLineAlgorithms = new breakLines.BreakLineAlgorithm();
+        let glueRemoved = nodeLine.filter((x) => !breakLineAlgorithms.isHGlue(x));
+        let onlyGlue = nodeLine.filter((x) => breakLineAlgorithms.isHGlue(x));
+        let sumStretchFactor = onlyGlue.map((x) => { if ("stretchFactor" in x) {
+            return x.stretchFactor;
+        }
+        else {
+            return 0;
+        } })
+            .reduce((acc, cur) => acc + cur, 0);
+        let glueRemovedWidth = glueRemoved.map((x) => { if ("width" in x) {
+            return x.width;
+        }
+        else {
+            return 0;
+        } })
+            .reduce((acc, cur) => acc + cur, 0);
+        let offset = frame.width - glueRemovedWidth;
+        var res = [];
+        for (var i = 0; i < nodeLine.length; i++) {
+            var ele = nodeLine[i];
+            if (breakLineAlgorithms.isHGlue(ele)) {
+                let tmp = {
+                    x: null,
+                    y: null,
+                    textStyle: null,
+                    direction: frame.directionInsideLine,
+                    width: ele.stretchFactor / sumStretchFactor * offset,
+                    height: 0,
+                    content: "",
+                };
+                res.push(tmp);
+            }
+            else {
+                res.push(ele);
+            }
+        }
+        return res;
+    }
+    /**
+     * remove breakpoints
+     * @param boxitemline boxitem in a line with a breakpoint
+     * @returns boxitemline with break points removed
+     */
+    removeBreakPoints(boxitemline) {
+        var res = [];
+        let breakLineAlgorithms = new breakLines.BreakLineAlgorithm();
+        for (var i = 0; i < boxitemline.length; i++) {
+            let ele = boxitemline[i];
+            if (breakLineAlgorithms.isBreakPoint(ele)) {
+                if (i == boxitemline.length - 1) {
+                    res.push(ele.newLined);
+                }
+                else {
+                    res.push(ele.original);
+                }
+            }
+            else {
+                res.push(ele);
+            }
         }
-        // TODO
-        console.log("test" + prepro);
+        return res;
     }
 }
 exports.Clo = Clo;
-exports.a = new Clo();
-exports.default = exports.a;
+/*
+export let a = new Clo();
+export default a; */