]> git.kianting.info Git - clo/blobdiff - src/libclo/index.js
update readme
[clo] / src / libclo / index.js
index 17b36b41752e06493d9c785c3002b787ab2be69d..fe92ce14683dae9d90116a36ae12de9cf70648ff 100644 (file)
@@ -32,13 +32,12 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
     });
 };
 Object.defineProperty(exports, "__esModule", { value: true });
-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;
+exports.Clo = exports.applyVOffset = exports.putInVBox = 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"));
+const PDFDocument = require('pdfkit');
+const memfs_1 = require("memfs");
 /**
  * TYPES
  */
@@ -61,7 +60,7 @@ var Direction;
 exports.A4_IN_PX = { "width": 793.7,
     "height": 1122.5 };
 exports.defaultTextStyle = {
-    family: "FreeSerif",
+    family: "Noto Sans CJK TC",
     size: ptToPx(12),
     textWeight: canva_1.TextWeight.REGULAR,
     fontStyle: canva_1.FontStyle.ITALIC,
@@ -104,7 +103,7 @@ exports.ptToPx = ptToPx;
  *  REGISTER PART
  */
 /**
- * convert '\n\n' to newline command ["nl"]
+ * convert '\n\n' to new paragraph command ["br"]
  * @param arr the input `tkTree`
  * @param clo the `Clo` object
  * @returns the input tktree
@@ -124,7 +123,7 @@ function twoReturnsToNewline(arr, clo) {
     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`
+            result.push(["br"]); // push a newline command to the result `tkTree`
         }
         else {
             result.push(middle[j]);
@@ -246,8 +245,13 @@ exports.hyphenTkTree = hyphenTkTree;
 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;
@@ -259,15 +263,25 @@ exports.calculateTextWidthHeight = calculateTextWidthHeight;
  * @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");
@@ -278,8 +292,8 @@ function calculateTextWidthHeightAux(element, style) {
                     y: null,
                     textStyle: style,
                     direction: Direction.LTR,
-                    width: (runGlyphsItem.advanceWidth) * (style.size) / 1000,
-                    height: (runGlyphsItem.bbox.maxY - runGlyphsItem.bbox.minY) * (style.size) / 1000,
+                    width: (runGlyphsItem.advanceWidth) * (style.size) / 1000 * 0.75,
+                    height: (runGlyphsItem.bbox.maxY - runGlyphsItem.bbox.minY) * (style.size) / 1000 * 0.75,
                     content: element[j],
                     minX: runGlyphsItem.bbox.minX,
                     maxX: runGlyphsItem.bbox.maxX,
@@ -288,14 +302,15 @@ function calculateTextWidthHeightAux(element, style) {
                 };
                 result.push(item);
             }
-            return result;
+            return [result, styleCache, fontCache];
+            // break point of a line
         }
         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();
             }
@@ -303,18 +318,66 @@ function calculateTextWidthHeightAux(element, style) {
                 original: beforeNewLine,
                 newLined: afterNewLine,
             };
-            return breakPointNode;
+            return [breakPointNode, styleCache, fontCache];
+            // hglue
         }
         else if (element[0] == "hglue" && !Array.isArray(element[1])) {
-            let hGlue = { stretchFactor: parseFloat(element[1]) };
-            return hGlue;
+            let hGlue = {
+                isHorizonalGlue: true,
+                stretchFactor: parseFloat(element[1])
+            };
+            return [hGlue, styleCache, fontCache];
+        }
+        // new line <br/>
+        else if (element[0] == "br") {
+            let brBoxItem = yield calculateTextWidthHeightAux(["hglue", "10000"], style, styleCache, fontCache);
+            // <br/>
+            let BR = {
+                isBR: true,
+                original: brBoxItem[0],
+                newLined: brBoxItem[0]
+            };
+            return [BR, styleCache, fontCache];
         }
         else {
-            return calculateTextWidthHeight(element, style);
+            return [yield calculateTextWidthHeight(element, style), styleCache, fontCache];
         }
     });
 }
 exports.calculateTextWidthHeightAux = calculateTextWidthHeightAux;
+/**
+ * put childrenBox inside VBox
+ */
+function putInVBox(childrenBox, parentBox) {
+    var voffset = Array(childrenBox.length).fill(0);
+    for (var i = 0; i < childrenBox.length - 1; i++) {
+        voffset[i + 1] = voffset[i] + childrenBox[i].height;
+    }
+    console.log("~", voffset);
+    for (var i = 0; i < childrenBox.length; i++) {
+        childrenBox[i] = applyVOffset(childrenBox[i], voffset[i]);
+        childrenBox[i].y += voffset[i];
+    }
+    parentBox.content = childrenBox;
+    return parentBox;
+}
+exports.putInVBox = putInVBox;
+/**
+ * apply vertical offset to a box
+ * @param box the box to be applied
+ * @param voffset the vertical offset
+ * @returns applied box
+ */
+function applyVOffset(box, voffset) {
+    if (box.y !== null) {
+        box.y += voffset;
+    }
+    if (Array.isArray(box.content)) {
+        box.content = box.content.map((x) => applyVOffset(x, voffset));
+    }
+    return box;
+}
+exports.applyVOffset = applyVOffset;
 /**
  * whole document-representing class
  */
@@ -360,52 +423,185 @@ class Clo {
                 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 defaultFontStyle = this.attrs.defaultFrameStyle.textStyle;
+            // calculate the width and height of each chars
+            let calculated = yield calculateTextWidthHeight(preprocessed, defaultFontStyle);
+            //
+            let paragraphized = this.paragraphize(calculated);
             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"]));
+            let segmentedNodes = paragraphized.map((x) => breakLineAlgorithms.segmentedNodes(x, this.attrs.defaultFrameStyle.width));
+            let segmentedNodesToBox = segmentedNodes.map((x) => this.segmentedNodesToFrameBoxAux(x, this.attrs.defaultFrameStyle));
+            let boxWithParagraph = putInVBox(segmentedNodesToBox, this.attrs.defaultFrameStyle);
+            console.log(boxWithParagraph);
+            // fix the bug of main Frame x & y
+            if (boxWithParagraph.x !== null) {
+                boxWithParagraph.x *= 0.75;
+            }
+            if (boxWithParagraph.y !== null) {
+                boxWithParagraph.y *= 0.75;
+            }
+            let boxesFixed = this.fixenBoxesPosition(boxWithParagraph);
+            boxesFixed.content.map((e) => { console.log(e.y); });
             // 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(i.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,
-                });
+            const doc = new PDFDocument({ size: 'A4' });
+            // let fsMemory = memfs();
+            doc.pipe(memfs_1.vol.createWriteStream('output.pdf'));
+            this.grid(doc);
+            let styleCache = {};
+            let fontPairCache = { path: "", psName: "" };
+            yield this.putText(doc, boxesFixed, styleCache, fontPairCache);
+            // putChar
+            doc.end();
+        });
+    }
+    paragraphize(calculated) {
+        var res = [[]];
+        for (var i = 0; i < calculated.length; i++) {
+            if ("isBR" in (calculated[i])) {
+                res[res.length - 1] = res[res.length - 1].concat(calculated[i]);
+                res.push([]);
+            }
+            else {
+                res[res.length - 1] = res[res.length - 1].concat(calculated[i]);
             }
-            for (var i = 0; i < 1000; i += 5) {
-                if (i % 50 == 0) {
-                    page.drawText(i.toString(), { x: i, y: 50 });
+        }
+        res = res.filter((x) => x.length !== 0);
+        return res;
+    }
+    putText(doc, box, styleCache, fontPairCache) {
+        return __awaiter(this, void 0, void 0, function* () {
+            var fontPair;
+            if (box.textStyle !== null) {
+                if (box.textStyle == styleCache) {
+                    fontPair = fontPairCache;
+                }
+                else {
+                    fontPair = (0, canva_1.fontStyleTofont)(box.textStyle);
+                    styleCache = box.textStyle;
+                    fontPairCache = fontPair;
+                    let textColor = box.textStyle.color;
+                    if (fontPair.path.match(/\.ttc$/g)) {
+                        doc
+                            .fillColor(textColor !== undefined ? textColor : "#000000")
+                            .font(fontPair.path, fontPair.psName)
+                            .fontSize(box.textStyle.size * 0.75);
+                    }
+                    else {
+                        doc
+                            .fillColor(textColor !== undefined ? textColor : "#000000")
+                            .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++) {
+                        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));
                 }
-                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);
+            return [doc, styleCache, fontPairCache];
         });
     }
-    segmentedNodesToFrameBox(segmentedNodes, frame) {
+    ;
+    grid(doc) {
+        for (var j = 0; j < exports.A4_IN_PX.width; j += 5) {
+            if (j % 50 == 0) {
+                doc.save().fill('#000000')
+                    .fontSize(8).text(j.toString(), j * 0.75, 50);
+                doc
+                    .save()
+                    .lineWidth(0.4)
+                    .strokeColor("#dddddd")
+                    .moveTo(j * 0.75, 0)
+                    .lineTo(j * 0.75, 1000)
+                    .stroke();
+            }
+            doc
+                .save()
+                .lineWidth(0.2)
+                .strokeColor("#dddddd")
+                .moveTo(j * 0.75, 0)
+                .lineTo(j * 0.75, 1000)
+                .stroke();
+        }
+        for (var i = 0; i < 1050; i += 5) {
+            if (i % 50 == 0) {
+                doc.save()
+                    .fontSize(8).text(i.toString(), 50, i * 0.75);
+                doc
+                    .save()
+                    .lineWidth(0.4)
+                    .strokeColor("#bbbbbb")
+                    .moveTo(0, i * 0.75)
+                    .lineTo(1000, i * 0.75)
+                    .stroke();
+            }
+            doc
+                .save()
+                .lineWidth(0.2)
+                .strokeColor("#bbbbbb")
+                .moveTo(0, i * 0.75)
+                .lineTo(1000, i * 0.75)
+                .stroke();
+        }
+        doc
+            .save()
+            .moveTo(0, 200)
+            .lineTo(1000, 200)
+            .fill('#FF3300');
+    }
+    /**
+     * make all the nest boxes's position fixed
+     * @param box the main boxes
+     * @returns the fixed boxes
+     */
+    fixenBoxesPosition(box) {
+        var currX = (box.x !== null ? box.x : 0); // current x
+        var currY = (box.y !== null ? box.y : 0); // current y
+        if (Array.isArray(box.content)) {
+            for (var i = 0; i < box.content.length; i++) {
+                if (box.direction == Direction.LTR) {
+                    box.content[i].x = currX;
+                    box.content[i].y = currY;
+                    let elementWidth = box.content[i].width;
+                    if (elementWidth !== null) {
+                        currX += elementWidth;
+                    }
+                }
+                if (box.direction == Direction.TTB) {
+                    box.content[i].x = currX;
+                    box.content[i].y = currY;
+                    let elementHeight = box.content[i].height;
+                    if (elementHeight !== null) {
+                        currY += elementHeight;
+                    }
+                }
+                box.content[i] = this.fixenBoxesPosition(box.content[i]);
+            }
+        }
+        return box;
+    }
+    /**
+     * input a `segmentedNodes` and a layed `frame`, return a big `Box` that nodes is put in.
+     * @param segmentedNodes the segmentnodes to be input
+     * @param frame the frame to be layed out.
+     * @returns the big `Box`.
+     */
+    segmentedNodesToFrameBoxAux(segmentedNodes, frame) {
         let baseLineskip = frame.baseLineskip;
         let boxArrayEmpty = [];
         let bigBox = {
-            x: frame.x,
-            y: frame.y,
+            x: (frame.x !== null ? frame.x * 0.75 : null),
+            y: (frame.y !== null ? frame.y * 0.75 : null),
             textStyle: frame.textStyle,
             direction: frame.direction,
             width: frame.width,
@@ -415,7 +611,7 @@ class Clo {
         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++) {
+        for (var i = 0; i < segmentedNodeUnglue.length; i++) {
             var currentLineSkip = baseLineskip;
             var glyphMaxHeight = this.getGlyphMaxHeight(segmentedNodesFixed[i]);
             if (currentLineSkip === null || glyphMaxHeight > currentLineSkip) {
@@ -433,6 +629,8 @@ class Clo {
             bigBoxContent.push(currentLineBox);
         }
         bigBox.content = bigBoxContent;
+        let bigBoxHeight = bigBoxContent.map((x) => x.height).reduce((x, y) => x + y, 0);
+        bigBox.height = bigBoxHeight;
         return bigBox;
     }
     /**
@@ -468,7 +666,7 @@ class Clo {
             return 0;
         } })
             .reduce((acc, cur) => acc + cur, 0);
-        let offset = frame.width - glueRemovedWidth;
+        let offset = frame.width * 0.75 - glueRemovedWidth;
         var res = [];
         for (var i = 0; i < nodeLine.length; i++) {
             var ele = nodeLine[i];
@@ -478,6 +676,7 @@ class Clo {
                     y: null,
                     textStyle: null,
                     direction: frame.directionInsideLine,
+                    //width : 0, // ragged
                     width: ele.stretchFactor / sumStretchFactor * offset,
                     height: 0,
                     content: "",