X-Git-Url: https://git.kianting.info/?a=blobdiff_plain;f=src%2Flibclo%2Findex.js;h=944aba2b1304c564dc166874f12915ca0acd2834;hb=eeb98157020c3a0e3f7481ef397b09a741f726bb;hp=5bcc3f1347e0783647066875446686bf9def5988;hpb=d8b33fabf7ffab673f4cd6a8201aadacf3624b41;p=clo

diff --git a/src/libclo/index.js b/src/libclo/index.js
index 5bcc3f1..944aba2 100644
--- a/src/libclo/index.js
+++ b/src/libclo/index.js
@@ -1,20 +1,272 @@
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.a = exports.Clo = void 0;
-function foo(arr) {
+exports.Clo = 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 jsdom_1 = require("jsdom");
+/**
+ * TYPES
+ */
+/**
+ * text direction
+ * LTR - left to right
+ * TTB - top to bottom
+ * etc.
+ */
+var Direction;
+(function (Direction) {
+    Direction[Direction["LTR"] = 0] = "LTR";
+    Direction[Direction["RTL"] = 1] = "RTL";
+    Direction[Direction["TTB"] = 2] = "TTB";
+    Direction[Direction["BTT"] = 3] = "BTT";
+})(Direction || (exports.Direction = Direction = {}));
+/**
+ * DEFAULT CONST PART
+ */
+exports.A4_IN_PX = { "width": 793.7,
+    "height": 1122.5 };
+exports.defaultTextStyle = {
+    family: "FreeSerif",
+    size: ptToPx(12),
+    textWeight: canva_1.TextWeight.REGULAR,
+    fontStyle: canva_1.FontStyle.ITALIC,
+};
+exports.defaultFrameStyle = {
+    directionInsideLine: Direction.LTR,
+    direction: Direction.TTB,
+    baseLineskip: ptToPx(15),
+    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,
+};
+/**
+ * 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
+ */
+/**
+ * convert from ptToPx
+ * @param pt pt size value
+ * @returns the corresponding px value
+ */
+function ptToPx(pt) {
+    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 a splitted tkTree (by CJK and NonCJK)
+ * - Examples:
+ *  ```
+ *  [`many臺中daylight`] => [`many`, `臺中`, `dahylight`]
+ *  ```
+ */
+function splitCJKV(arr, clo) {
+    var result = [];
     for (let i = 0; i < arr.length; i++) {
+        var item = arr[i];
+        if (!Array.isArray(item)) {
+            result = result.concat(item.split(exports.cjkvRegexPattern));
+        }
+        else {
+            result.push(item);
+        }
     }
+    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)) {
+            result.push(['bp', item, ""]); // push a newline command to the result `tkTree`
+        }
+        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.push("balabala");
+        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(preprocessed, style) {
+    var dom = new jsdom_1.JSDOM(`<!DOCTYPE html><html><head></head>
+    <body><canvas id="canvas"></canvas></body></html>`);
+    try {
+        let canvas = dom.window.document.getElementById("canvas");
+        console.log(canvas);
+        /*if (!(canvas instanceof HTMLElement)){
+            throw new Error('the <canvas="canvas"> in the jsdom\'s DOM is not found.');
+            
+        }*/
+        let context = canvas.getContext("2d");
+        console.log(context);
+        if (context == null) {
+            throw new Error('`canvas.getContext("2d");` can\'t be executed.');
+        }
+        context.font = `normal normal 10pt ${style.family}`;
+        console.log(context.font);
+        let txt = `Hello john`;
+        console.log(txt);
+        let measured = context.measureText(txt);
+        let width = measured.width;
+        let height = measured.actualBoundingBoxAscent;
+        let depth = measured.actualBoundingBoxDescent;
+        console.log("width: " + width);
+        console.log("height: " + height);
+        console.log("depth: " + depth);
+    }
+    catch (error) {
+        console.log("Exception " + error);
+    }
+}
+exports.calculateTextWidthHeight = calculateTextWidthHeight;
+/**
+ * whole document-representing class
+ */
 class Clo {
     constructor() {
         this.preprocessors = [];
         this.mainStream = [];
-        this.attributes = { "page": [793.7, 1122.5] };
-        this.preprocessorRegister(foo);
+        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.attrs, attr, val);
+    }
+    getAttr(attr) {
+        if (Object.keys(this.attrs).length === 0) {
+            return this.attrs[attr];
+        }
+        else {
+            return undefined;
+        }
     }
     /**
      * register a function of preprocessor
@@ -25,14 +277,18 @@ class Clo {
     }
     generatePdf() {
         // preprocessed
-        var prepro = this.mainStream;
+        var preprocessed = this.mainStream;
         for (var i = 0; i < this.preprocessors.length; i++) {
-            prepro = this.preprocessors[i](prepro);
+            preprocessed = this.preprocessors[i](preprocessed, this);
         }
+        // generate the width and height of the stream
+        let defaultFontStyle = this.attrs["defaultFrameStyle"].textStyle;
+        calculateTextWidthHeight(preprocessed, defaultFontStyle);
         // TODO
-        console.log("test" + prepro);
+        console.log(preprocessed);
     }
 }
 exports.Clo = Clo;
-exports.a = new Clo();
-exports.default = exports.a;
+/*
+export let a = new Clo();
+export default a; */