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- /**
- * Created by chen on 2017/8/16.
- */
- /**
- * Created by zhang on 2017/8/14.
- */
- const pdf = require('pdfkit');
- const PDF_SCALE = 0.75;
- const fs = require('fs');
- const jpcCmnHelper = require('../rpt_component/helper/jpc_helper_common');
- const DPI = jpcCmnHelper.getScreenDPI()[0] * PDF_SCALE;
- const JV = require('../rpt_component/jpc_value_define');
- const uuidV1 = require('uuid').v1;
- let fontUtil = require('./rpt_font_util');
- // 目前不支持下划线
- module.exports = {
- export_pdf_file:export_pdf_file
- }
- function export_pdf_file (pageData, paperSize, fName, callback) {
- let offsetX= 10;
- let offsetY=10;
- let doc = new pdf({autoFirstPage: false});
- // let newName = '' + (new Date()).valueOf();
- let newName = uuidV1();
- let stream = doc.pipe(fs.createWriteStream(__dirname.slice(0, __dirname.length - 21) + '/tmp/'+newName+'.pdf'));
- let pageObj = pageData;
- // doc.rect(5,5,1190,890).lineWidth(1).strokeColor('black').stroke();//边框
- let paperSizeIdx = JV.PAGES_SIZE_STR.indexOf(paperSize);
- let size = JV.PAGES_SIZE[paperSizeIdx];
- function private_getIniPageMergeBorder(mergedBand) {
- let rst = {};
- rst[JV.PROP_LEFT] = mergedBand[JV.PROP_LEFT];
- rst[JV.PROP_RIGHT] = mergedBand[JV.PROP_RIGHT];
- rst[JV.PROP_TOP] = mergedBand[JV.PROP_TOP];
- rst[JV.PROP_BOTTOM] = mergedBand[JV.PROP_BOTTOM];
- rst[JV.PROP_STYLE] = mergedBand[JV.PROP_STYLE];
- return rst;
- }
- let newPageMergeBand = private_getIniPageMergeBorder(pageObj[JV.BAND_PROP_MERGE_BAND]);
- if (pageObj && pageObj.items.length > 0 ) {
- for(let i=0;i<pageObj.items.length;i++){
- if (pageData[JV.NODE_PAGE_INFO][JV.NODE_PAGE_SIZE][0] > pageData[JV.NODE_PAGE_INFO][JV.NODE_PAGE_SIZE][1]) {
- doc.addPage({size:[size[1]*DPI,size[0]*DPI]});
- } else {
- doc.addPage({size:[size[0]*DPI,size[1]*DPI]});
- }
- let page = pageObj.items[i],
- fonts = pageObj[JV.NODE_FONT_COLLECTION],
- styles = pageObj[JV.NODE_STYLE_COLLECTION],
- controls = pageObj[JV.NODE_CONTROL_COLLECTION];
- if (page[JV.PROP_PAGE_MERGE_BORDER]) {
- newPageMergeBand[JV.PROP_LEFT] = page[JV.PROP_PAGE_MERGE_BORDER][JV.PROP_LEFT];
- newPageMergeBand[JV.PROP_RIGHT] = page[JV.PROP_PAGE_MERGE_BORDER][JV.PROP_RIGHT];
- newPageMergeBand[JV.PROP_TOP] = page[JV.PROP_PAGE_MERGE_BORDER][JV.PROP_TOP];
- newPageMergeBand[JV.PROP_BOTTOM] = page[JV.PROP_PAGE_MERGE_BORDER][JV.PROP_BOTTOM];
- }
- for (let j = 0; j < page.cells.length; j++) {
- let cell = page.cells[j];
- private_drawCell(cell, fonts, styles, controls, newPageMergeBand);
- }
- }
- }
- doc.end();
- stream.on('finish',function () {
- console.log(newName + ".pdf was written.");
- callback(newName);
- });
- function private_chkIfInMergedBand(mergedBand, cell) {
- let rst = false;
- if (mergedBand && cell) {
- rst = mergedBand[JV.PROP_TOP] <= cell[JV.PROP_AREA][JV.PROP_TOP] && mergedBand[JV.PROP_BOTTOM] >= cell[JV.PROP_AREA][JV.PROP_BOTTOM] &&
- mergedBand[JV.PROP_LEFT] <= cell[JV.PROP_AREA][JV.PROP_LEFT] && mergedBand[JV.PROP_RIGHT] >= cell[JV.PROP_AREA][JV.PROP_RIGHT];
- }
- return rst;
- }
- function private_drawCell(cell, fonts, styles, controls, mergedBand) {
- doc.save();
- // doc.translate(0.5,0.5); //跟H5的canvas不同,不需要这样切换
- let style = styles[cell[JV.PROP_STYLE]];
- if (style) {
- let isNeedMergeBand = private_chkIfInMergedBand(mergedBand, cell);
- private_drawLine(cell, doc, style, JV.PROP_TOP, [JV.PROP_LEFT, JV.PROP_TOP],[JV.PROP_RIGHT, JV.PROP_TOP], mergedBand, styles, isNeedMergeBand);
- private_drawLine(cell, doc, style, JV.PROP_RIGHT, [JV.PROP_RIGHT, JV.PROP_TOP],[JV.PROP_RIGHT, JV.PROP_BOTTOM], mergedBand, styles, isNeedMergeBand);
- private_drawLine(cell, doc, style, JV.PROP_BOTTOM, [JV.PROP_RIGHT, JV.PROP_BOTTOM],[JV.PROP_LEFT, JV.PROP_BOTTOM], mergedBand, styles, isNeedMergeBand);
- private_drawLine(cell, doc, style, JV.PROP_LEFT, [JV.PROP_LEFT, JV.PROP_BOTTOM],[JV.PROP_LEFT, JV.PROP_TOP], mergedBand, styles, isNeedMergeBand);
- }
- private_drawCellText(cell, fonts, controls);
- doc.restore();
- }
- function private_drawLine(cell, doc, style, styleBorderDest, startP, destP, mergedBand, styles, isNeedMergeBand) {
- //doc.beginPath();
- let destStyle = style;
- if (mergedBand) {
- if (isNeedMergeBand && parseFloat(mergedBand[styleBorderDest]) === parseFloat(cell[JV.PROP_AREA][styleBorderDest])) {
- destStyle = styles[mergedBand[JV.PROP_STYLE][JV.PROP_ID]];
- }
- }
- // doc.moveTo(cell[JV.PROP_AREA][startP[0]] + offsetX, cell[JV.PROP_AREA][startP[1]] + offsetY);
- doc.moveTo( (cell[JV.PROP_AREA][startP[0]] + offsetX) * PDF_SCALE, (cell[JV.PROP_AREA][startP[1]] + offsetY) * PDF_SCALE);
- if (destStyle[styleBorderDest] && parseFloat(destStyle[styleBorderDest][JV.PROP_LINE_WEIGHT]) !== 0) {
- doc.lineWidth(1.0 * destStyle[styleBorderDest][JV.PROP_LINE_WEIGHT]);
- // doc.lineTo(cell[JV.PROP_AREA][destP[0]] + offsetX, cell[JV.PROP_AREA][destP[1]] + offsetY);
- doc.lineTo((cell[JV.PROP_AREA][destP[0]] + offsetX) * PDF_SCALE, (cell[JV.PROP_AREA][destP[1]] + offsetY) * PDF_SCALE);
- doc.strokeColor(destStyle[styleBorderDest][JV.PROP_COLOR]);
- }
- doc.stroke();
- }
- function private_drawCellText(cell, fonts, controls) {
- if (cell[JV.PROP_VALUE]) {
- let values = ("" + cell[JV.PROP_VALUE]).split('|');
- // let font = fonts[cell[JV.PROP_FONT]];
- let font = null;
- if (typeof cell[JV.PROP_FONT] === "string") {
- font = fonts[cell[JV.PROP_FONT]];
- } else {
- font = cell[JV.PROP_FONT];
- }
- // let control = controls[cell[JV.PROP_CONTROL]];
- let control = null;
- if (typeof cell[JV.PROP_CONTROL] === "string") {
- control = controls[cell[JV.PROP_CONTROL]];
- } else {
- control = cell[JV.PROP_CONTROL];
- }
- let height = cell[JV.PROP_AREA][JV.PROP_BOTTOM] - cell[JV.PROP_AREA][JV.PROP_TOP];
- let area = [cell[JV.PROP_AREA][JV.PROP_LEFT] + offsetX, cell[JV.PROP_AREA][JV.PROP_TOP] + offsetY, cell[JV.PROP_AREA][JV.PROP_RIGHT] + offsetX, cell[JV.PROP_AREA][JV.PROP_BOTTOM] + offsetY];
- let ah = height;
- let restTopH = 0, restBottomH = 0;
- if (control[JV.CONTROL_PROPS[JV.CONTROL_PROP_IDX_CLOSE_OUTPUT]] === 'T') {
- ah = (parseFloat(font[JV.FONT_PROPS[1]]) + JV.OUTPUT_OFFSET[JV.OFFSET_IDX_TOP] + JV.OUTPUT_OFFSET[JV.OFFSET_IDX_BOTTOM]) * values.length;
- let restH = height - ah;
- if (control[JV.CONTROL_PROPS[JV.CONTROL_PROP_IDX_VERTICAL]] === 'center') {
- restTopH = restH / 2;
- restBottomH = restH / 2;
- } else if (control[JV.CONTROL_PROPS[JV.CONTROL_PROP_IDX_VERTICAL]] === 'bottom') {
- restBottomH = restH;
- } else {
- restTopH = restH;
- }
- }
- let spaceIdxArr = [];
- for (let i = 0; i < values.length; i++) {
- // area[JV.IDX_TOP] = cell[JV.PROP_AREA][JV.PROP_TOP] + i * (height / values.length) + offsetY;
- // area[JV.IDX_BOTTOM] = cell[JV.PROP_AREA][JV.PROP_TOP] + (i + 1) * (height / values.length) + offsetY;
- area[JV.IDX_TOP] = cell[JV.PROP_AREA][JV.PROP_TOP] + i * (ah / values.length) + offsetY + restTopH;
- area[JV.IDX_BOTTOM] = cell[JV.PROP_AREA][JV.PROP_TOP] + (i + 1) * (ah / values.length) + offsetY + restBottomH;
- if (values[i] === null || values[i] === undefined || values[i] === 'null') {
- values[i] = "";
- }
- // 因pdfkit输出空格只有一半宽度,需要额外加空格补上 -----------------------------
- if (typeof(values[i]) === "string") {
- for (let j = 0; j < values[i].length; j++) {
- if (values[i][j] === ' ') spaceIdxArr.push(j);
- }
- }
- for (let j = spaceIdxArr.length - 1; j >= 0; j--) {
- values[i] = values[i].slice(0, spaceIdxArr[j]) + ' ' + values[i].slice(spaceIdxArr[j]);
- }
- // -----------------------------
- private_drawText(values[i], area, font, control);
- spaceIdxArr = [];
- }
- }
- }
- function private_drawText(val, area, font, control) {
- let dftFontHeight = 12;
- let output = [];
- let fontFile = __dirname + '/pdf_base_files/simkai.ttf';
- if (font) {
- dftFontHeight = 1 * font[JV.FONT_PROPS[1]];
- fontFile = __dirname + '/pdf_base_files/' + fontUtil.getActualFont(font[JV.FONT_PROPS[0]], (font[JV.FONT_PROPS[3]] === 'T'), (font[JV.FONT_PROPS[4]] === 'T')) + '.ttf';
- doc.fontSize(dftFontHeight);
- }
- doc.font(fontFile);
- let options={};
- let inner_setupControl = function (inArea, inFontHeight, inOutput) {
- if (control) {
- private_setupAreaH(inArea, control.Horizon, font.FontAngle, inFontHeight, inOutput, options);
- private_setupAreaV(inArea, control.Vertical, font.FontAngle, inFontHeight, inOutput);
- } else {
- private_setupAreaH(inArea, "left", parseInt(font.FontAngle), inFontHeight, inOutput, options);
- private_setupAreaV(inArea, "bottom", parseInt(font.FontAngle), inFontHeight, inOutput);
- }
- };
- inner_setupControl(area, dftFontHeight, output);
- let validAreaTxtWidth = area[JV.IDX_RIGHT] - JV.OUTPUT_OFFSET[JV.OFFSET_IDX_RIGHT] - area[JV.IDX_LEFT] - JV.OUTPUT_OFFSET[JV.OFFSET_IDX_RIGHT];
- let validTxtLines = Math.floor((area[JV.IDX_BOTTOM] - area[JV.IDX_TOP]) / (dftFontHeight + JV.OUTPUT_OFFSET[JV.OFFSET_IDX_BOTTOM] + JV.OUTPUT_OFFSET[JV.OFFSET_IDX_TOP] + 4));
- if (parseInt(font.FontAngle) !== 0) {
- validAreaTxtWidth = area[JV.IDX_BOTTOM] - JV.OUTPUT_OFFSET[JV.OFFSET_IDX_BOTTOM] - area[JV.IDX_TOP] - JV.OUTPUT_OFFSET[JV.OFFSET_IDX_TOP];
- validTxtLines = Math.floor((area[JV.IDX_RIGHT] - area[JV.IDX_LEFT]) / (dftFontHeight + JV.OUTPUT_OFFSET[JV.OFFSET_IDX_RIGHT] + JV.OUTPUT_OFFSET[JV.OFFSET_IDX_LEFT] + 4));
- }
- function private_drawUnderline(underLineVal, underLineArea) {
- //A. 暂不支持角度; B. PDF输出时,坐标没有translate
- let ctx = doc;
- //1. 计算下划线的相关坐标
- let width = ctx.widthOfString(underLineVal);
- if (width > underLineArea[JV.IDX_RIGHT] - underLineArea[JV.IDX_LEFT]) {
- width = underLineArea[JV.IDX_RIGHT] - underLineArea[JV.IDX_LEFT];
- }
- let height = dftFontHeight;
- let startX = underLineArea[JV.IDX_LEFT], startY = underLineArea[JV.IDX_TOP], endX = underLineArea[JV.IDX_RIGHT], endY = underLineArea[JV.IDX_BOTTOM];
- // let startX = 0, startY = 0, endX = width, endY = startY;
- if (control.Horizon === "left") {
- startX = Math.round(underLineArea[JV.IDX_LEFT] + JV.OUTPUT_OFFSET[JV.IDX_LEFT]);
- } else if (control.Horizon === "right") {
- startX = Math.round(underLineArea[JV.IDX_RIGHT] - width - JV.OUTPUT_OFFSET[JV.IDX_RIGHT]);
- } else {
- startX = Math.round( underLineArea[JV.IDX_LEFT] + (underLineArea[JV.IDX_RIGHT] - underLineArea[JV.IDX_LEFT] - width) / 2);
- }
- endX = Math.round(startX + width);
- if (control.Vertical === "top") {
- startY = Math.round(underLineArea[JV.IDX_TOP] + JV.OUTPUT_OFFSET[JV.IDX_TOP] + JV.OUTPUT_OFFSET[JV.IDX_BOTTOM] + height);
- } else if (control.Vertical === "bottom") {
- startY = Math.round(underLineArea[JV.IDX_BOTTOM] + JV.OUTPUT_OFFSET[JV.IDX_BOTTOM]);
- } else {
- startY = Math.round( underLineArea[JV.IDX_TOP] + (underLineArea[JV.IDX_BOTTOM] - underLineArea[JV.IDX_TOP] + height) / 2) + JV.OUTPUT_OFFSET[JV.IDX_TOP] + JV.OUTPUT_OFFSET[JV.IDX_BOTTOM];
- }
- endY = Math.round(startY);
- //2. 画线
- // ctx.save();
- if ( output[1] !== Math.round(output[1])) {
- ctx.translate(0,0.5);
- }
- // ctx.beginPath();
- // ctx.moveTo(startX, startY);
- ctx.moveTo(startX * PDF_SCALE, startY * PDF_SCALE);
- ctx.lineWidth(1);
- ctx.strokeStyle = "BLACK";
- // ctx.lineTo(endX, endY);
- ctx.lineTo(endX * PDF_SCALE, endY * PDF_SCALE);
- ctx.stroke();
- // ctx.restore();
- }
- let rotateOptions;
- // if (font[JV.FONT_PROPS[5]] === 'T' && parseInt(font.FontAngle) === 0) {
- // private_drawUnderline(val);
- // }
- if (parseInt(font.FontAngle) !== 0) {
- if (control){
- rotateOptions = private_setupAreaRotateOption(area,validAreaTxtWidth,control.Vertical,dftFontHeight, output);
- } else {
- rotateOptions = private_setupAreaRotateOption(area,validAreaTxtWidth,"bottom",dftFontHeight, output);
- }
- doc.rotate(font.FontAngle,rotateOptions);
- }
- if (validAreaTxtWidth >= doc.widthOfString(val) ||
- (control && control.Shrink !== 'T' && validTxtLines < private_splitString(val, validAreaTxtWidth, doc)) ) {
- options.width = validAreaTxtWidth * PDF_SCALE;
- options.height = dftFontHeight * PDF_SCALE;
- doc.fontSize(dftFontHeight);
- if (font[JV.FONT_PROPS[5]] === 'T' && parseInt(font.FontAngle) === 0) {
- private_drawUnderline(val, area);
- }
- doc.fontSize(dftFontHeight * PDF_SCALE);
- doc.text(val,output[0] * PDF_SCALE, output[1] * PDF_SCALE, options);
- doc.font(__dirname + '/pdf_base_files/simhei_bold_italic.ttf');
- } else {
- while (true) {
- //*/
- let lines = Math.floor((area[JV.IDX_BOTTOM] - area[JV.IDX_TOP]) / (dftFontHeight + JV.OUTPUT_OFFSET[JV.OFFSET_IDX_BOTTOM] + JV.OUTPUT_OFFSET[JV.OFFSET_IDX_TOP] + 4));
- lines = (lines === 0 || (control.Shrink === 'T' && control.ShrinkFirst === 'T'))?1:lines;
- let actLines = private_splitString(val, validAreaTxtWidth, doc);
- if (actLines.length > lines && dftFontHeight >= 6) {
- dftFontHeight--;
- doc.fontSize(dftFontHeight);
- options.width = validAreaTxtWidth * PDF_SCALE;
- options.height = dftFontHeight * PDF_SCALE;
- // doc.text(val,output[0], output[1], options);
- } else {
- let aH = dftFontHeight + JV.OUTPUT_OFFSET[JV.OFFSET_IDX_BOTTOM] + JV.OUTPUT_OFFSET[JV.OFFSET_IDX_TOP] + 4;
- if ((aH * actLines.length) < (area[JV.IDX_BOTTOM] - area[JV.IDX_TOP]) && (control && control.Vertical !== 'top')) {
- if (control.Vertical === 'bottom') {
- area[JV.IDX_TOP] = area[JV.IDX_BOTTOM] - (aH * actLines.length);
- } else {
- area[JV.IDX_TOP] = (area[JV.IDX_TOP] + area[JV.IDX_BOTTOM]) / 2 - (aH * actLines.length) / 2
- area[JV.IDX_BOTTOM] = area[JV.IDX_TOP] + (aH * actLines.length);
- }
- }
- let newArea = [], baseTop = area[JV.IDX_TOP];
- for (let ai = 0; ai < area.length; ai++) {
- newArea[ai] = area[ai];
- }
- options.width = validAreaTxtWidth * PDF_SCALE;
- options.height = dftFontHeight * PDF_SCALE;
- for (let lIdx = 0; lIdx < actLines.length; lIdx++) {
- newArea[JV.IDX_TOP] = Math.round(aH * lIdx + baseTop);
- newArea[JV.IDX_BOTTOM] = Math.round(aH * (lIdx + 1) + baseTop);
- inner_setupControl(newArea, dftFontHeight, output);
- doc.fontSize(dftFontHeight);
- if (font[JV.FONT_PROPS[5]] === 'T' && parseInt(font.FontAngle) === 0) {
- private_drawUnderline(actLines[lIdx], newArea);
- }
- doc.fontSize(dftFontHeight * PDF_SCALE);
- doc.text(actLines[lIdx], output[0] * PDF_SCALE, output[1] * PDF_SCALE, options);
- }
- break;
- }
- /*/
- dftFontHeight--;
- doc.fontSize(dftFontHeight);
- if (validAreaTxtWidth >= doc.widthOfString(val) || dftFontHeight < 6) {
- options.width = validAreaTxtWidth;
- options.height = dftFontHeight;
- doc.text(val,output[0], output[1], options);
- doc.font(__dirname + '/pdf_base_files/simhei_bold_italic.ttf');
- break;
- }
- //*/
- }
- }
- // doc.text(val,output[0], output[1], options);
- doc.font(__dirname + '/pdf_base_files/simhei_bold_italic.ttf');
- // doc.restore();
- }
- function private_setupAreaH(area, type, fontAngle, dftFontHeight, outputPoint,options) {
- let lType = type;
- if (type !== "left" && type !== "right" && type !== "center") lType = "left";
- options.align=lType;
- outputPoint[0]=1 * area[JV.IDX_LEFT]+ JV.OUTPUT_OFFSET[JV.OFFSET_IDX_LEFT];
- }
- function private_setupAreaV(area, type, fontAngle, dftFontHeight, outputPoint) {
- let lType = type;
- if (type !== "top" && type !== "bottom" && type !== "center") lType = "top";
- switch (lType) {
- case "top":
- outputPoint[1] = 1 * area[JV.IDX_TOP] + JV.OUTPUT_OFFSET[JV.OFFSET_IDX_TOP];
- break;
- case "bottom":
- outputPoint[1] = 1 * area[JV.IDX_BOTTOM] - JV.OUTPUT_OFFSET[JV.OFFSET_IDX_BOTTOM]-dftFontHeight;
- break;
- case "center":
- outputPoint[1] = 1 * area[JV.IDX_TOP] + (1 * area[JV.IDX_BOTTOM]-1 * area[JV.IDX_TOP]- dftFontHeight) / 2;
- break;
- }
- }
- function private_splitString(strVal, areaWidth, doc) {
- let rst = [];
- if (strVal) {
- let preSIdx = 0, txtWidth = 0;
- let currentW = 0;
- let chnW = doc.widthOfString('一'), otherW = doc.widthOfString('_');
- for (let sIdx = 0; sIdx < strVal.length; sIdx++) {
- currentW = (strVal.charCodeAt(sIdx) > 127)?chnW:otherW;
- txtWidth += currentW;
- if (txtWidth > areaWidth) {
- if (preSIdx < sIdx) {
- rst.push(strVal.substr(preSIdx, sIdx - preSIdx));
- preSIdx = sIdx;
- } else {
- rst.push(strVal.substr(preSIdx, 1));
- preSIdx = sIdx + 1;
- }
- txtWidth = currentW;
- }
- if (sIdx === strVal.length - 1) {
- rst.push(strVal.substr(preSIdx, strVal.length - preSIdx));
- }
- }
- }
- if (rst.length === 0) rst.push(''); //什么都没有,也得整个空串
- return rst;
- }
- function private_setupAreaRotateOption(area,w, type="top",dftFontHeight,outputPoint){
- let x = (area[JV.IDX_RIGHT] - area[JV.IDX_LEFT])/2+area[JV.IDX_LEFT];
- let y =(area[JV.IDX_BOTTOM] - area[JV.IDX_TOP])/2+ area[JV.IDX_TOP];
- let rotateOptions = {origin:[x,y]};
- let h = area[JV.IDX_RIGHT] - area[JV.IDX_LEFT];
- outputPoint[0]=x-w/2+JV.OUTPUT_OFFSET[JV.OFFSET_IDX_LEFT];
- switch (type) {
- case "top":
- outputPoint[1] = y- h/2+ JV.OUTPUT_OFFSET[JV.OFFSET_IDX_TOP];
- break;
- case "bottom":
- outputPoint[1] = y+ h/2-JV.OUTPUT_OFFSET[JV.OFFSET_IDX_BOTTOM]-dftFontHeight;
- break;
- case "center":
- outputPoint[1] = y+dftFontHeight/2;
- break;
- }
- return rotateOptions;
- }
- }
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