前端打印功能(vue +springboot)
后端
后端
依赖
依赖 一个是用模版生成对应的pdf,一个是用来将pdf转成图片需要的
<!--打印的-->
<dependency>
<groupId>net.sf.jasperreports</groupId>
<artifactId>jasperreports</artifactId>
</dependency>
<dependency>
<groupId>org.apache.pdfbox</groupId>
<artifactId>pdfbox</artifactId>
<version>3.0.0</version>
</dependency>
所需的文件资源 jasper是模版,然后font是pdf转图片的时候需要的字体
由于有资源 所以pom配置俩包下面不允许压缩
<build>
<resources>
<resource>
<targetPath>${project.build.directory}/classes</targetPath>
<directory>src/main/resources</directory>
<filtering>true</filtering>
<excludes>
<exclude>**/*.jasper</exclude>
<exclude>**/*.jrxml</exclude>
<exclude>**/*.TTF</exclude>
</excludes>
</resource>
<resource>
<targetPath>${project.build.directory}/classes</targetPath>
<directory>src/main/resources</directory>
<filtering>false</filtering>
<includes>
<include>**/*.jasper</include>
<include>**/*.jrxml</include>
<include>**/*.TTF</include>
</includes>
</resource>
</resources>
</build>
生成pdf的方法
用到的实体类
package com.xueyi.common.core.utils.print.dto;
import lombok.Data;
@Data
public class PdfInfoDto {
private Integer height;
private Integer width;
private byte[] pdfBytes;
}
生成pdf的方法
package com.xueyi.common.core.utils.print;
import com.xueyi.common.core.utils.print.dto.PdfInfoDto;
import net.sf.jasperreports.engine.*;
import net.sf.jasperreports.engine.export.JRPdfExporter;
import net.sf.jasperreports.engine.util.JRLoader;
import net.sf.jasperreports.export.SimpleExporterInput;
import net.sf.jasperreports.export.SimpleOutputStreamExporterOutput;
import net.sf.jasperreports.export.SimplePdfExporterConfiguration;
import org.springframework.core.io.ClassPathResource;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
public class PrintUtil {
public static PdfInfoDto printPDF(String modelName, HashMap hashMap) throws IOException, JRException {
// 获取模板路径
ClassPathResource classPathResource = new ClassPathResource("/jasper/"+modelName+".jasper");
// 获取模板输入流
InputStream inputStream = classPathResource.getInputStream();
// 读取模板
JasperReport report = (JasperReport) JRLoader.loadObject(inputStream);
//数据库数据填充报表
JasperPrint jprint = JasperFillManager.fillReport(report, hashMap,new JREmptyDataSource());
DefaultJasperReportsContext defaultJasperReportsContext=DefaultJasperReportsContext.getInstance();
// defaultJasperReportsContext.setProperty("net.sf.jasperreports.fonts.STSong-Light", "path/to/STSong-Light.ttf");
//创建导出对象
JRPdfExporter exporter = new JRPdfExporter(defaultJasperReportsContext);
//设置要导出的流
exporter.setExporterInput(new SimpleExporterInput(jprint));
ByteArrayOutputStream byteArrayOutputStream=new ByteArrayOutputStream();
exporter.setExporterOutput(new SimpleOutputStreamExporterOutput(byteArrayOutputStream));
SimplePdfExporterConfiguration configuration = new SimplePdfExporterConfiguration();
configuration.setCreatingBatchModeBookmarks(true);
exporter.setConfiguration(configuration);
// 导出pdf
exporter.exportReport();
byte[] bytes=byteArrayOutputStream.toByteArray();
byteArrayOutputStream.close();
PdfInfoDto pdfInfo=new PdfInfoDto();
pdfInfo.setPdfBytes(bytes);
pdfInfo.setHeight(jprint.getPageHeight());
pdfInfo.setWidth(jprint.getPageWidth());
return pdfInfo;
}
}
pdf转图片
用到的实体类
package com.xueyi.common.core.utils.print.dto;
import lombok.Data;
@Data
public class ImageInfoDto {
private Integer height;
private Integer width;
private byte[] imageBytes;
}
package com.xueyi.common.core.utils.print;
import com.xueyi.common.core.utils.print.dto.ImageInfoDto;
import org.apache.pdfbox.Loader;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.rendering.PDFRenderer;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
public class Pdf2PngUtil {
public static List<ImageInfoDto> pdf2png(byte[] bytes) throws IOException {
ArrayList<ImageInfoDto> list=new ArrayList();
PDDocument doc=Loader.loadPDF(bytes);
PDFRenderer renderer = new PDFRenderer(doc);
int pageCount = doc.getNumberOfPages();
for (int i = 0; i < pageCount; i++) {
// dpi为144，越高越清晰，转换越慢
BufferedImage image = renderer.renderImageWithDPI(i, 144); // Windows native DPI
ByteArrayOutputStream byteArrayOutputStream=new ByteArrayOutputStream();
ImageIO.createImageOutputStream(byteArrayOutputStream);
ImageIO.write(image, "png", byteArrayOutputStream);
ImageInfoDto imageInfo=new ImageInfoDto();
imageInfo.setHeight(image.getHeight());
imageInfo.setWidth(image.getWidth());
imageInfo.setImageBytes(byteArrayOutputStream.toByteArray());
list.add(imageInfo);
byteArrayOutputStream.close();
}
doc.close();
return list;
}
}
使用(用的打印模版是带参数的 ,参数是aaa)
返回类
@Data
public class PrintDto {
@Serial
private static final long serialVersionUID = 1L;
private String jasperName;
private HashMap hashMap;
private List<ImageInfoDto> imageInfoDtoList;
private PdfInfoDto pdfInfoDto;
}
使用
@PostMapping("/print")
public AjaxResult print(@RequestBody TransSchedulerQuery transSchedulerQuery) throws IOException, JRException {
PrintDto printDto=new PrintDto();
printDto.setJasperName(transSchedulerQuery.getJasperName());
HashMap hashMap=new HashMap();
hashMap.put("aaa","你看得到吗?");
printDto.setPdfInfoDto(PrintUtil.printPDF(transSchedulerQuery.getJasperName(),hashMap));
printDto.setImageInfoDtoList(Pdf2PngUtil.pdf2png(printDto.getPdfInfoDto().getPdfBytes()));
return AjaxResult.success(printDto);
}
总结
后端的思路其实很简单,就是用带参数的打印模版,然后把对应参数送进去生成pdf,由于前端需要图片和pdf两种,所以又把生成的pdf转图片生成了一下图片的list.然后不管事pdf和图片,都是直接把文件本身传递回去了,没有存到本地,用url的方法.直接把文件的byte数组传递到前端了(一般序列化的方式就是base64,所以json序列化的时候自动转好了的前端接到的是字符串形式的)
前端
前端其实很简单,就是把得到的文件信息拿到,转成blob形式,然后预览一下.唯一的问题就是拿到的字符串需要进行转码,从base64变回byte数组.因为要有预览的效果,所以一直尝试前端pdf转换然后要自定义打印啥的(Lodop),用了很多无用的代码,后续定下来打印就调用浏览器的打印啥的,那个打印按钮有打印前和打印后的回调函数的,已经满足需求了.
export function base64ToByteArray(base64String: string): Uint8Array {
const binaryString = atob(base64String);
const length = binaryString.length;
const bytes = new Uint8Array(length);
for (let i = 0; i < length; i++) {
bytes[i] = binaryString.charCodeAt(i);
}
return bytes;
}
页面
<template>
<BasicModal v-bind="$attrs" :width="ModalWidthEnum.COMMON" @register="registerModal" :canFullscreen="false" :title="variable.title" :height="400" :okText="t('public.button.print')" @ok="handleSubmit" >
<div style="margin-top: 5px;text-align: center;">
<span> {{t("public.describe.all")}}{{variable.imagesUrlList.length}}{{t("public.describe.page")}}{{t("public.describe.clickToTurnOver")}}</span>
</div>
<iframe ref="pdfFrameRef" :src="variable.pdfUrl" style="display: none"></iframe>
<Row ref="rowRef">
<!-- <Col :span="1" >-->
<!-- <div style="height: 100%;">-->
<!-- <CaretLeftOutlined style="position: absolute;top: 45%"/>-->
<!-- </div>-->
<!-- </Col>-->
<Col :span="24">
<div style="border: black 1px solid;" >
<Image :src="variable.imagesUrlList[0]" width="100%" :preview="variable.preview" @click="variable.preview = true"/>
<div style="display: none">
<Image.PreviewGroup :preview="{ visible:variable.preview, onVisibleChange: vis => (variable.preview = vis) }">
<Image v-for="(item) in variable.imagesUrlList" :src="item" width="100%" />
</Image.PreviewGroup>
</div>
</div>
</Col>
<!-- <Col :span="1" >-->
<!-- <div style="height: 100%;">-->
<!-- <CaretRightOutlined style="position: absolute;top: 45%"/>-->
<!-- </div>-->
<!-- </Col>-->
</Row>
</BasicModal>
</template>
<script setup lang="ts">
import {reactive, ref} from 'vue';
import {useMessage} from '@/hooks/web/useMessage';
import {BasicModal, useModalInner} from '@/components/Modal';
import {useI18n} from "@/hooks/web/useI18n";
import {ModalWidthEnum} from "@/enums";
import {Image,Row,Col,} from 'ant-design-vue';
// 定义国际化
const { t } = useI18n();
const emit = defineEmits(['success']);
const {createMessage} = useMessage();
const isUpdate = ref(true);
import {base64ToByteArray} from "@/utils/commonFunctions/commonFunctions";
/** 标题初始化 */
const variable = reactive<any>({
ids: [],
fatherParam:{},
title:"",
pdfUrl:null,
pdfBlob:null,
imagesUrlList:[],
currentIndex:0,
currentHeight:0,
preview:false,
afterPrintFunction:null
});
const pdfFrameRef=ref()
const rowRef=ref()
const [registerModal, {setModalProps, closeModal,changeOkLoading,changeLoading}] = useModalInner(async (data) => {
variable.fatherParam=JSON.parse(JSON.stringify(data.fatherParam))
variable.afterPrintFunction=data.afterPrintFunction
variable.title=data.fatherParam.title
variable.imagesUrlList=[]
variable.currentIndex=0
variable.preview=false
//有图片的情况
if (data.fatherParam.data.imageInfoDtoList?.length>0){
variable.currentHeight=variable.fatherParam.data.imageInfoDtoList[0].height
variable.pdfBlob = new Blob([base64ToByteArray(variable.fatherParam.data?.pdfInfoDto?.pdfBytes)], { type: 'application/pdf'});
variable.pdfUrl= window.URL.createObjectURL(variable.pdfBlob)
variable.fatherParam.data.imageInfoDtoList.forEach(item=>{
const blob1 = new Blob([base64ToByteArray(item.imageBytes)], { type: 'image/png'});
variable.imagesUrlList.push(window.URL.createObjectURL(blob1))
})
}
});
// const getPrintDevice = () => {
// var loop = getLodop(); // 创建一个LODOP对象
// let counter = loop.GET_PRINTER_COUNT(); // 获取打印机个数
// //初始化下printNameList打印数组
// variable.printDeviceList = [];
// for (let i = 0; i < counter; i++) {
// //将打印机存入printList数组中
// variable.printDeviceList.push({name:loop.GET_PRINTER_NAME(i),value:i});
// }
//
// //获取默认打印机并设置
// var defaultName =loop.GET_PRINTER_NAME(-1);
// variable.printDeviceList.forEach(item=>{
// if(item.name==defaultName){
// variable.printDevice=item.value
// }
// })
// }
// const doPrint = () => {
// var LODOP = getLodop(); // 创建一个LODOP对象
// // LODOP.ADD_PRINT_IMAGE(0, 0, "<img>", "EMF", variable.pdfUrl);
// LODOP.PRINT_INIT("打印控件功能演示_Lodop功能_按网址打印");
// let base64="data:image/png;base64,"+variable.fatherParam.data.imageListByte[0]
// LODOP.ADD_PRINT_IMAGE(0,0,"100%","100%",base64);
// console.log(base64)
// LODOP.PRINT();
// }
// // 创建 LODOP 实例
// function getLodop() {
// let LODOP;
// if (window.LODOP) {
// LODOP = window.LODOP;
// } else if (window.parent.LODOP) {
// LODOP = window.parent.LODOP;
// } else {
// LODOP = (function () {
// var LODOP = null;
// var s = document.createElement('script');
// s.src = '/LODOPfuncs.js';
// s.id = 'LODOPfuncs';
// s.type = 'text/javascript';
// document.getElementsByTagName('head')[0].appendChild(s);
// document.onpropertychange = function (e) {
// if (e.propertyName === 'LODOP') {
// LODOP = e.srcElement.LODOP;
// }
// };
// return LODOP;
// })();
// }
// return LODOP;
// }
/** 提交按钮 */
async function handleSubmit() {
pdfFrameRef.value.contentWindow.print();
window.onafterprint = afterPrint;
}
/**
* 浏览器打印的回调
*/
const afterPrint = async () => {
variable.afterPrintFunction()
}
</script>
效果
在pdf转图片的时候可能会出现乱码
1.模版那边选的字体就是有问题的
2.报错什么jvm没有字体啥的,说明机子上没有装对应的字体,装上就好了
3.虽然pdf有字体,但是pdf转图片的时候,没有找到对应的字体,出现了部分的口口之类的,因为模版那边虽然写着STSong-Light(这个是做模版的时候如果用中文,必须选这个),但是控件上可以选楷体啥的,于是两个对应不上,就让做模版的固定用STSong,然后我只要发现STSong-Light就是去找STSong
this.addSubstitutes(“STSong-Light”, new ArrayList(Arrays.asList(“STSong”)));
并且机子上安好STSong,就可以不乱码
//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by FernFlower decompiler)
//
package org.apache.pdfbox.pdmodel.font;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.PriorityQueue;
import java.util.Set;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.fontbox.FontBoxFont;
import org.apache.fontbox.ttf.OpenTypeFont;
import org.apache.fontbox.ttf.TTFParser;
import org.apache.fontbox.ttf.TrueTypeFont;
import org.apache.fontbox.type1.Type1Font;
import org.apache.fontbox.util.autodetect.FontFileFinder;
import org.apache.pdfbox.io.RandomAccessReadBuffer;
/**
* 告诉PDFBox如何找到字体，以及如何从字体中获取 glyphs。
*/
final class FontMapperImpl implements FontMapper {
private static final Log LOG = LogFactory.getLog(FontMapperImpl.class);
private static final FontCache fontCache = new FontCache();
private FontProvider fontProvider;
private Map<String, FontInfo> fontInfoByName;
private final TrueTypeFont lastResortFont;
private final Map<String, List<String>> substitutes = new HashMap();
FontMapperImpl() {
this.addSubstitutes("Courier", new ArrayList(Arrays.asList("CourierNew", "CourierNewPSMT", "LiberationMono", "NimbusMonL-Regu")));
this.addSubstitutes("Courier-Bold", new ArrayList(Arrays.asList("CourierNewPS-BoldMT", "CourierNew-Bold", "LiberationMono-Bold", "NimbusMonL-Bold")));
this.addSubstitutes("Courier-Oblique", new ArrayList(Arrays.asList("CourierNewPS-ItalicMT", "CourierNew-Italic", "LiberationMono-Italic", "NimbusMonL-ReguObli")));
this.addSubstitutes("Courier-BoldOblique", new ArrayList(Arrays.asList("CourierNewPS-BoldItalicMT", "CourierNew-BoldItalic", "LiberationMono-BoldItalic", "NimbusMonL-BoldObli")));
this.addSubstitutes("Helvetica", new ArrayList(Arrays.asList("ArialMT", "Arial", "LiberationSans", "NimbusSanL-Regu")));
this.addSubstitutes("Helvetica-Bold", new ArrayList(Arrays.asList("Arial-BoldMT", "Arial-Bold", "LiberationSans-Bold", "NimbusSanL-Bold")));
this.addSubstitutes("Helvetica-Oblique", new ArrayList(Arrays.asList("Arial-ItalicMT", "Arial-Italic", "Helvetica-Italic", "LiberationSans-Italic", "NimbusSanL-ReguItal")));
this.addSubstitutes("Helvetica-BoldOblique", new ArrayList(Arrays.asList("Arial-BoldItalicMT", "Helvetica-BoldItalic", "LiberationSans-BoldItalic", "NimbusSanL-BoldItal")));
this.addSubstitutes("Times-Roman", new ArrayList(Arrays.asList("TimesNewRomanPSMT", "TimesNewRoman", "TimesNewRomanPS", "LiberationSerif", "NimbusRomNo9L-Regu")));
this.addSubstitutes("Times-Bold", new ArrayList(Arrays.asList("TimesNewRomanPS-BoldMT", "TimesNewRomanPS-Bold", "TimesNewRoman-Bold", "LiberationSerif-Bold", "NimbusRomNo9L-Medi")));
this.addSubstitutes("Times-Italic", new ArrayList(Arrays.asList("TimesNewRomanPS-ItalicMT", "TimesNewRomanPS-Italic", "TimesNewRoman-Italic", "LiberationSerif-Italic", "NimbusRomNo9L-ReguItal")));
this.addSubstitutes("Times-BoldItalic", new ArrayList(Arrays.asList("TimesNewRomanPS-BoldItalicMT", "TimesNewRomanPS-BoldItalic", "TimesNewRoman-BoldItalic", "LiberationSerif-BoldItalic", "NimbusRomNo9L-MediItal")));
this.addSubstitutes("Symbol", new ArrayList(Arrays.asList("Symbol", "SymbolMT", "StandardSymL")));
this.addSubstitutes("ZapfDingbats", new ArrayList(Arrays.asList("ZapfDingbatsITCbyBT-Regular", "ZapfDingbatsITC", "Dingbats", "MS-Gothic")));
this.addSubstitutes("STSong-Light", new ArrayList(Arrays.asList("STSong")));
//这是拿标准的14个字体让放进去
Iterator var1 = Standard14Fonts.getNames().iterator();
while(var1.hasNext()) {
String baseName = (String)var1.next();
if (this.getSubstitutes(baseName).isEmpty()) {
Standard14Fonts.FontName mappedName = Standard14Fonts.getMappedFontName(baseName);
this.addSubstitutes(baseName, new ArrayList(this.getSubstitutes(mappedName.getName())));
}
}
try {
String resourceName = "/org/apache/pdfbox/resources/ttf/LiberationSans-Regular.ttf";
InputStream resourceAsStream = FontMapper.class.getResourceAsStream(resourceName);
if (resourceAsStream == null) {
throw new IOException("resource '" + resourceName + "' not found");
} else {
RandomAccessReadBuffer randomAccessReadBuffer = new RandomAccessReadBuffer(resourceAsStream);
TTFParser ttfParser = new TTFParser();
this.lastResortFont = ttfParser.parse(randomAccessReadBuffer);
}
} catch (IOException var5) {
IOException e = var5;
throw new RuntimeException(e);
}
}
public synchronized void setProvider(FontProvider fontProvider) {
this.fontInfoByName = this.createFontInfoByName(fontProvider.getFontInfo());
this.fontProvider = fontProvider;
// //获取本地的
// fontProvider.getFontInfo().forEach((item)->{
// System.out.println("baseName-------------------"+item);
// });
}
public synchronized FontProvider getProvider() {
if (this.fontProvider == null) {
this.setProvider(FontMapperImpl.DefaultFontProvider.INSTANCE);
}
return this.fontProvider;
}
public FontCache getFontCache() {
return fontCache;
}
private Map<String, FontInfo> createFontInfoByName(List<? extends FontInfo> fontInfoList) {
Map<String, FontInfo> map = new LinkedHashMap();
Iterator var3 = fontInfoList.iterator();
while(var3.hasNext()) {
FontInfo info = (FontInfo)var3.next();
Iterator var5 = this.getPostScriptNames(info.getPostScriptName()).iterator();
while(var5.hasNext()) {
String name = (String)var5.next();
map.put(name.toLowerCase(Locale.ENGLISH), info);
}
}
return map;
}
private Set<String> getPostScriptNames(String postScriptName) {
Set<String> names = new HashSet(2);
names.add(postScriptName);
names.add(postScriptName.replace("-", ""));
return names;
}
public void addSubstitute(String match, String replace) {
String lowerCaseMatch = match.toLowerCase(Locale.ENGLISH);
((List)this.substitutes.computeIfAbsent(lowerCaseMatch, (key) -> {
return new ArrayList();
})).add(replace);
}
private void addSubstitutes(String match, List<String> replacements) {
this.substitutes.put(match.toLowerCase(Locale.ENGLISH), replacements);
}
private List<String> getSubstitutes(String postScriptName) {
List<String> subs = (List)this.substitutes.get(postScriptName.replace(" ", "").toLowerCase(Locale.ENGLISH));
return subs != null ? subs : Collections.emptyList();
}
private String getFallbackFontName(PDFontDescriptor fontDescriptor) {
String fontName;
if (fontDescriptor != null) {
boolean isBold = false;
String name = fontDescriptor.getFontName();
if (name != null) {
String lower = fontDescriptor.getFontName().toLowerCase();
isBold = lower.contains("bold") || lower.contains("black") || lower.contains("heavy");
}
if (fontDescriptor.isFixedPitch()) {
fontName = "Courier";
if (isBold && fontDescriptor.isItalic()) {
fontName = fontName + "-BoldOblique";
} else if (isBold) {
fontName = fontName + "-Bold";
} else if (fontDescriptor.isItalic()) {
fontName = fontName + "-Oblique";
}
} else if (fontDescriptor.isSerif()) {
fontName = "Times";
if (isBold && fontDescriptor.isItalic()) {
fontName = fontName + "-BoldItalic";
} else if (isBold) {
fontName = fontName + "-Bold";
} else if (fontDescriptor.isItalic()) {
fontName = fontName + "-Italic";
} else {
fontName = fontName + "-Roman";
}
} else {
fontName = "Helvetica";
if (isBold && fontDescriptor.isItalic()) {
fontName = fontName + "-BoldOblique";
} else if (isBold) {
fontName = fontName + "-Bold";
} else if (fontDescriptor.isItalic()) {
fontName = fontName + "-Oblique";
}
}
} else {
fontName = "Times-Roman";
}
return fontName;
}
public FontMapping<TrueTypeFont> getTrueTypeFont(String baseFont, PDFontDescriptor fontDescriptor) {
TrueTypeFont ttf = (TrueTypeFont)this.findFont(FontFormat.TTF, baseFont);
if (ttf != null) {
return new FontMapping(ttf, false);
} else {
String fontName = this.getFallbackFontName(fontDescriptor);
ttf = (TrueTypeFont)this.findFont(FontFormat.TTF, fontName);
if (ttf == null) {
ttf = this.lastResortFont;
}
return new FontMapping(ttf, true);
}
}
public FontMapping<FontBoxFont> getFontBoxFont(String baseFont, PDFontDescriptor fontDescriptor) {
FontBoxFont font = this.findFontBoxFont(baseFont);
if (font != null) {
return new FontMapping(font, false);
} else {
String fallbackName = this.getFallbackFontName(fontDescriptor);
font = this.findFontBoxFont(fallbackName);
if (font == null) {
font = this.lastResortFont;
}
return new FontMapping((FontBoxFont)font, true);
}
}
private FontBoxFont findFontBoxFont(String postScriptName) {
Type1Font t1 = (Type1Font)this.findFont(FontFormat.PFB, postScriptName);
if (t1 != null) {
return t1;
} else {
TrueTypeFont ttf = (TrueTypeFont)this.findFont(FontFormat.TTF, postScriptName);
if (ttf != null) {
return ttf;
} else {
OpenTypeFont otf = (OpenTypeFont)this.findFont(FontFormat.OTF, postScriptName);
return otf != null ? otf : null;
}
}
}
private FontBoxFont findFont(FontFormat format, String postScriptName) {
if (postScriptName == null) {
return null;
} else {
if (this.fontProvider == null) {
this.getProvider();
}
FontInfo info = this.getFont(format, postScriptName);
if (info != null) {
return info.getFont();
} else {
info = this.getFont(format, postScriptName.replace("-", ""));
if (info != null) {
return info.getFont();
} else {
Iterator var4 = this.getSubstitutes(postScriptName).iterator();
do {
if (!var4.hasNext()) {
info = this.getFont(format, postScriptName.replace(",", "-"));
if (info != null) {
return info.getFont();
}
info = this.getFont(format, postScriptName + "-Regular");
if (info != null) {
return info.getFont();
}
return null;
}
String substituteName = (String)var4.next();
info = this.getFont(format, substituteName);
} while(info == null);
return info.getFont();
}
}
}
}
private FontInfo getFont(FontFormat format, String postScriptName) {
if (postScriptName.contains("+")) {
postScriptName = postScriptName.substring(postScriptName.indexOf(43) + 1);
}
FontInfo info = (FontInfo)this.fontInfoByName.get(postScriptName.toLowerCase(Locale.ENGLISH));
if (info != null && info.getFormat() == format) {
if (LOG.isDebugEnabled()) {
LOG.debug(String.format("getFont('%s','%s') returns %s", format, postScriptName, info));
}
return info;
} else {
return null;
}
}
public CIDFontMapping getCIDFont(String baseFont, PDFontDescriptor fontDescriptor, PDCIDSystemInfo cidSystemInfo) {
OpenTypeFont otf1 = (OpenTypeFont)this.findFont(FontFormat.OTF, baseFont);
if (otf1 != null) {
return new CIDFontMapping(otf1, (FontBoxFont)null, false);
} else {
TrueTypeFont ttf = (TrueTypeFont)this.findFont(FontFormat.TTF, baseFont);
if (ttf != null) {
return new CIDFontMapping((OpenTypeFont)null, ttf, false);
} else {
if (cidSystemInfo != null) {
String collection = cidSystemInfo.getRegistry() + "-" + cidSystemInfo.getOrdering();
if (collection.equals("Adobe-GB1") || collection.equals("Adobe-CNS1") || collection.equals("Adobe-Japan1") || collection.equals("Adobe-Korea1")) {
PriorityQueue<FontMatch> queue = this.getFontMatches(fontDescriptor, cidSystemInfo);
FontMatch bestMatch = (FontMatch)queue.poll();
if (bestMatch != null) {
if (LOG.isDebugEnabled()) {
LOG.debug("Best match for '" + baseFont + "': " + bestMatch.info);
}
FontBoxFont font = bestMatch.info.getFont();
if (font instanceof OpenTypeFont) {
return new CIDFontMapping((OpenTypeFont)font, (FontBoxFont)null, true);
}
if (font != null) {
return new CIDFontMapping((OpenTypeFont)null, font, true);
}
}
}
}
return new CIDFontMapping((OpenTypeFont)null, this.lastResortFont, true);
}
}
}
private PriorityQueue<FontMatch> getFontMatches(PDFontDescriptor fontDescriptor, PDCIDSystemInfo cidSystemInfo) {
PriorityQueue<FontMatch> queue = new PriorityQueue(20);
Iterator var4 = this.fontInfoByName.values().iterator();
while(true) {
FontMatch match;
while(true) {
FontInfo info;
do {
if (!var4.hasNext()) {
return queue;
}
info = (FontInfo)var4.next();
} while(cidSystemInfo != null && !this.isCharSetMatch(cidSystemInfo, info));
match = new FontMatch(info);
if (fontDescriptor.getPanose() != null && info.getPanose() != null) {
PDPanoseClassification panose = fontDescriptor.getPanose().getPanose();
if (panose.getFamilyKind() != info.getPanose().getFamilyKind()) {
break;
}
if (panose.getFamilyKind() == 0 && (info.getPostScriptName().toLowerCase().contains("barcode") || info.getPostScriptName().startsWith("Code")) && !this.probablyBarcodeFont(fontDescriptor)) {
continue;
}
if (panose.getSerifStyle() == info.getPanose().getSerifStyle()) {
match.score += 2.0;
} else if (panose.getSerifStyle() >= 2 && panose.getSerifStyle() <= 5 && info.getPanose().getSerifStyle() >= 2 && info.getPanose().getSerifStyle() <= 5) {
++match.score;
} else if (panose.getSerifStyle() >= 11 && panose.getSerifStyle() <= 13 && info.getPanose().getSerifStyle() >= 11 && info.getPanose().getSerifStyle() <= 13) {
++match.score;
} else if (panose.getSerifStyle() != 0 && info.getPanose().getSerifStyle() != 0) {
--match.score;
}
int weight = info.getPanose().getWeight();
int weightClass = info.getWeightClassAsPanose();
if (Math.abs(weight - weightClass) > 2) {
weight = weightClass;
}
if (panose.getWeight() == weight) {
match.score += 2.0;
} else if (panose.getWeight() > 1 && weight > 1) {
float dist = (float)Math.abs(panose.getWeight() - weight);
match.score += 1.0 - (double)dist * 0.5;
}
break;
}
if (fontDescriptor.getFontWeight() > 0.0F && info.getWeightClass() > 0) {
float dist = Math.abs(fontDescriptor.getFontWeight() - (float)info.getWeightClass());
match.score += 1.0 - (double)(dist / 100.0F) * 0.5;
}
break;
}
queue.add(match);
}
}
private boolean probablyBarcodeFont(PDFontDescriptor fontDescriptor) {
String ff = fontDescriptor.getFontFamily();
if (ff == null) {
ff = "";
}
String fn = fontDescriptor.getFontName();
if (fn == null) {
fn = "";
}
return ff.startsWith("Code") || ff.toLowerCase().contains("barcode") || fn.startsWith("Code") || fn.toLowerCase().contains("barcode");
}
private boolean isCharSetMatch(PDCIDSystemInfo cidSystemInfo, FontInfo info) {
if (info.getCIDSystemInfo() != null) {
return info.getCIDSystemInfo().getRegistry().equals(cidSystemInfo.getRegistry()) && info.getCIDSystemInfo().getOrdering().equals(cidSystemInfo.getOrdering());
} else {
long codePageRange = info.getCodePageRange();
long JIS_JAPAN = 131072L;
long CHINESE_SIMPLIFIED = 262144L;
long KOREAN_WANSUNG = 524288L;
long CHINESE_TRADITIONAL = 1048576L;
long KOREAN_JOHAB = 2097152L;
if ("MalgunGothic-Semilight".equals(info.getPostScriptName())) {
codePageRange &= ~(JIS_JAPAN | CHINESE_SIMPLIFIED | CHINESE_TRADITIONAL);
}
if (cidSystemInfo.getOrdering().equals("GB1") && (codePageRange & CHINESE_SIMPLIFIED) == CHINESE_SIMPLIFIED) {
return true;
} else if (cidSystemInfo.getOrdering().equals("CNS1") && (codePageRange & CHINESE_TRADITIONAL) == CHINESE_TRADITIONAL) {
return true;
} else if (cidSystemInfo.getOrdering().equals("Japan1") && (codePageRange & JIS_JAPAN) == JIS_JAPAN) {
return true;
} else {
return cidSystemInfo.getOrdering().equals("Korea1") && ((codePageRange & KOREAN_WANSUNG) == KOREAN_WANSUNG || (codePageRange & KOREAN_JOHAB) == KOREAN_JOHAB);
}
}
}
private FontMatch printMatches(PriorityQueue<FontMatch> queue) {
FontMatch bestMatch = (FontMatch)queue.peek();
System.out.println("-------");
while(!queue.isEmpty()) {
FontMatch match = (FontMatch)queue.poll();
FontInfo info = match.info;
System.out.println(match.score + " | " + info.getMacStyle() + " " + info.getFamilyClass() + " " + info.getPanose() + " " + info.getCIDSystemInfo() + " " + info.getPostScriptName() + " " + info.getFormat());
}
System.out.println("-------");
return bestMatch;
}
private static class FontMatch implements Comparable<FontMatch> {
double score;
final FontInfo info;
FontMatch(FontInfo info) {
this.info = info;
}
public int compareTo(FontMatch match) {
return Double.compare(match.score, this.score);
}
}
private static class DefaultFontProvider {
private static final FontProvider INSTANCE;
private DefaultFontProvider() {
}
static {
INSTANCE = new FileSystemFontProvider(FontMapperImpl.fontCache);
}
}
}
原文地址：https://blog.csdn.net/m0_54851477/article/details/144403340
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