fl0919/goeingPrintServer
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feat: 计算页边距

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lifangliang 2025-08-20 09:19:24 +08:00
parent 5978de5534
commit cf8e27d18f
1 changed files with 49 additions and 14 deletions
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63
src/main/java/com/goeing/printserver/main/utils/PdfPrinter.java
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@ -31,6 +31,10 @@ public class PdfPrinter {
private static final Map<String, MediaSizeName> PAPER_SIZES = new HashMap<>();
// 装订边距常量（英寸）
private static final double BINDING_MARGIN_LEFT = 0.5; // 左装订额外边距
private static final double BINDING_MARGIN_TOP = 0.5; // 顶装订额外边距
static {
PAPER_SIZES.put("Letter", MediaSizeName.NA_LETTER); // 8.5" × 11"
PAPER_SIZES.put("Legal", MediaSizeName.NA_LEGAL); // 8.5" × 14"
@ -77,9 +81,7 @@ public class PdfPrinter {
String color = option.getColor();
//如果是封面彩打 那么要把封面和 内容分开打印 就做两个打印任务 先打封面 再打内容
if (color.equalsIgnoreCase("Cover Letter Color Only")){
if ("Cover Letter Color Only".equals(color)) {
PDDocument cover = new PDDocument();
cover.addPage(document.getPage(0));
cover.close();
@ -87,7 +89,7 @@ public class PdfPrinter {
PDDocument content = new PDDocument();
for (int i = 0; i < document.getNumberOfPages(); i++) {
//第一页是封面
if (i==0){
if (i == 0) {
continue;
}
content.addPage(document.getPage(i));
@ -99,7 +101,10 @@ public class PdfPrinter {
option.setColor("black & white");
setPageStyle(content, job, option);
}else {
} else {
if (StrUtil.containsIgnoreCase(color,"color")){
option.setColor("color");
}
//全部打印
setPageStyle(document, job, option);
}
@ -265,8 +270,8 @@ public class PdfPrinter {
// 获取边距（默认为0.5英寸）
double marginInches = option.getMargin();
// 创建并返回Paper对象
return createPaper(dimensions[0], dimensions[1], marginInches);
// 创建并返回Paper对象，考虑装订选项
return createPaper(dimensions[0], dimensions[1], marginInches, option.getPosition());
}
/**
@ -382,22 +387,52 @@ public class PdfPrinter {
*
* @param width 纸张宽度（点）
* @param height 纸张高度（点）
* @param marginInches 边距（英寸）
* @param marginInches 基础边距（英寸）
* @param bindingOption 装订选项
* @return 配置好的Paper对象
*/
private static Paper createPaper(double width, double height, double marginInches) {
private static Paper createPaper(double width, double height, double marginInches, String bindingOption) {
Paper paper = new Paper();
paper.setSize(width, height);
// 计算各边的边距，考虑装订选项
double leftMargin = marginInches;
double topMargin = marginInches;
double rightMargin = marginInches;
double bottomMargin = marginInches;
// 根据装订选项调整边距
if (bindingOption != null) {
switch (bindingOption) {
case "Left":
leftMargin += BINDING_MARGIN_LEFT;
break;
case "Top":
topMargin += BINDING_MARGIN_TOP;
break;
case "Staple":
leftMargin += BINDING_MARGIN_LEFT;
topMargin += BINDING_MARGIN_TOP;
break;
case "None":
default:
// 不调整边距
break;
}
}
// 将边距从英寸转换为点
double marginPoints = marginInches * 72;
double leftMarginPoints = leftMargin * 72;
double topMarginPoints = topMargin * 72;
double rightMarginPoints = rightMargin * 72;
double bottomMarginPoints = bottomMargin * 72;
// 设置可打印区域
paper.setImageableArea(
marginPoints,
marginPoints,
width - 2 * marginPoints,
height - 2 * marginPoints
leftMarginPoints,
topMarginPoints,
width - leftMarginPoints - rightMarginPoints,
height - topMarginPoints - bottomMarginPoints
);
return paper;