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处理图片位置不准的问题

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This commit is contained in:
wanggeng888 2021-03-08 14:55:03 +08:00
parent f6d48921d6
commit 2c3ba70742
1 changed files with 100 additions and 16 deletions
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116
cloud-common/src/main/java/com/cm/common/utils/PDFUtil.java
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@ -140,10 +140,10 @@ public class PDFUtil {
// 合成PDF
Image image = Image.getInstance(imageFile);
image.scalePercent(50F);
// image.scaleAbsolute(200);
image.setAbsolutePosition((float) (lastCharInfo.getX() + 10), (float) (lastCharInfo.getY() - 25));
PdfContentByte underContent = pdfStamper.getUnderContent(1);
float scaledHeight = image.getScaledHeight();
float centerHeight = ((float) lastCharInfo.getCharWidth() + scaledHeight) / 2;
image.setAbsolutePosition((float) (lastCharInfo.getX() + lastCharInfo.getCharWidth()), (float) (lastCharInfo.getY() - centerHeight));
PdfContentByte underContent = pdfStamper.getUnderContent(lastCharInfo.getPageNum());
underContent.addImage(image);
pdfStamper.close();
pdfReader.close();
@ -167,6 +167,15 @@ public class PDFUtil {
return true;
}
/**
* 图片替换关键字
*
* @param sourceFile
* @param keyword
* @param outFile
* @param imageFile
* @return
*/
public static boolean addImageReplaceKeyword(String sourceFile, String keyword, String outFile, String imageFile) {
PdfReader pdfReader = null;
PdfStamper pdfStamper = null;
@ -183,8 +192,8 @@ public class PDFUtil {
image.scalePercent(50F);
// image.scaleAbsolute(200);
image.setAbsolutePosition((float) (lastCharInfo.getX() + 10), (float) (lastCharInfo.getY() - 25));
PdfContentByte underContent = pdfStamper.getUnderContent(1);
image.setAbsolutePosition((float) (lastCharInfo.getX()), (float) (lastCharInfo.getY()));
PdfContentByte underContent = pdfStamper.getUnderContent(lastCharInfo.getPageNum());
underContent.addImage(image);
pdfStamper.close();
pdfReader.close();
@ -223,7 +232,11 @@ public class PDFUtil {
if (index < 0) {
continue;
}
// keyword.length() - 1
lastCharInfo = pageInfo.getCharInfos().get(index + keyword.length() - 1);
lastCharInfo.setPageNum(pageInfo.getPageNum());
lastCharInfo.setPageWidth(pageInfo.getPageWidth());
lastCharInfo.setPageHeight(pageInfo.getPageHeight());
}
return lastCharInfo;
}
@ -246,6 +259,9 @@ public class PDFUtil {
continue;
}
firstCharInfo = pageInfo.getCharInfos().get(index);
firstCharInfo.setPageNum(pageInfo.getPageNum());
firstCharInfo.setPageWidth(pageInfo.getPageWidth());
firstCharInfo.setPageHeight(pageInfo.getPageHeight());
}
return firstCharInfo;
}
@ -275,18 +291,19 @@ public class PDFUtil {
PdfContentStreamProcessor pdfContentStreamProcessor = new PdfContentStreamProcessor(pdfRenderListener);
// 解析PDF流
pdfContentStreamProcessor.processContent(ContentByteUtils.getContentBytesForPage(pdfReader, pageNum), resourcesPdfDictionary);
pageInfos.add(new PageInfo(pdfRenderListener.getContent(), pdfRenderListener.getCharInfos()));
pageInfos.add(new PageInfo(pageNum, pageWidth, pageHeight, pdfRenderListener.getContent(), pdfRenderListener.getCharInfos()));
}
return pageInfos;
}
public static class PdfRenderListener implements RenderListener {
private static final List<CharInfo> charInfos = new ArrayList<>();
private static final StringBuffer content = new StringBuffer();
private List<CharInfo> charInfos = new ArrayList<>();
private StringBuffer content = new StringBuffer();
@Override
public void beginTextBlock() {
}
// 逐行解析文本
@ -294,16 +311,16 @@ public class PDFUtil {
public void renderText(TextRenderInfo textRenderInfo) {
// 行内容
List<TextRenderInfo> characterRenderInfos = textRenderInfo.getCharacterRenderInfos();
// PDF坐标在左下角？
for (TextRenderInfo characterRenderInfo : characterRenderInfos) {
String word = characterRenderInfo.getText();
Rectangle2D.Float boundingRectange = characterRenderInfo.getAscentLine().getBoundingRectange();
double minX = boundingRectange.getMinX();
double minY = boundingRectange.getMinY();
CharInfo charInfo = new CharInfo(minX, minY, boundingRectange.getWidth(), boundingRectange.getHeight());
double minX = boundingRectange.getX();
double minY = boundingRectange.getY();
CharInfo charInfo = new CharInfo(minX, minY, boundingRectange.getWidth(), boundingRectange.getHeight(), word);
charInfos.add(charInfo);
content.append(word);
}
}
@Override
@ -330,16 +347,46 @@ public class PDFUtil {
* 页面信息
*/
public static class PageInfo {
private Integer pageNum;
private Float pageWidth;
private Float pageHeight;
private String content;
private List<CharInfo> charInfos;
public PageInfo(String content, List<CharInfo> charInfos) {
public PageInfo(Integer pageNum, Float pageWidth, Float pageHeight, String content, List<CharInfo> charInfos) {
this.pageNum = pageNum;
this.pageWidth = pageWidth;
this.pageHeight = pageHeight;
this.content = content;
this.charInfos = charInfos;
}
public Integer getPageNum() {
return pageNum == null ? 0 : pageNum;
}
public void setPageNum(Integer pageNum) {
this.pageNum = pageNum;
}
public Float getPageWidth() {
return pageWidth == null ? 0 : pageWidth;
}
public void setPageWidth(Float pageWidth) {
this.pageWidth = pageWidth;
}
public Float getPageHeight() {
return pageHeight == null ? 0 : pageHeight;
}
public void setPageHeight(Float pageHeight) {
this.pageHeight = pageHeight;
}
public String getContent() {
return content == null ? "" : content.trim();
return content == null ? "" : content;
}
public void setContent(String content) {
@ -362,16 +409,45 @@ public class PDFUtil {
* 字体信息
*/
public static class CharInfo {
private int pageNum;
private float pageWidth;
private float pageHeight;
private double x;
private double y;
private double charWidth;
private double charHeight;
private String text;
public CharInfo(double x, double y, double charWidth, double charHeight) {
public CharInfo(double x, double y, double charWidth, double charHeight, String text) {
this.x = x;
this.y = y;
this.charWidth = charWidth;
this.charHeight = charHeight;
this.text = text;
}
public int getPageNum() {
return pageNum;
}
public void setPageNum(int pageNum) {
this.pageNum = pageNum;
}
public float getPageWidth() {
return pageWidth;
}
public void setPageWidth(float pageWidth) {
this.pageWidth = pageWidth;
}
public float getPageHeight() {
return pageHeight;
}
public void setPageHeight(float pageHeight) {
this.pageHeight = pageHeight;
}
public double getX() {
@ -405,6 +481,14 @@ public class PDFUtil {
public void setCharHeight(double charHeight) {
this.charHeight = charHeight;
}
public String getText() {
return text == null ? "" : text;
}
public void setText(String text) {
this.text = text;
}
}
}