From f07bced888f5b8ade34265b15a6338c0e0208366 Mon Sep 17 00:00:00 2001 From: obo Date: Wed, 6 Sep 2023 15:50:16 +0800 Subject: [PATCH] =?UTF-8?q?REPORT-103847=20=E5=8D=95=E6=B5=8B?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../fr/third/com/lowagie/text/ImageTest.java | 108 ++++++++++++++++++ .../com/fr/third/com/lowagie/text/actual.pdf | Bin 0 -> 1601 bytes .../com/fr/third/com/lowagie/text/expect.pdf | Bin 0 -> 1601 bytes .../com/lowagie/text/transparent_image.png | Bin 0 -> 247 bytes 4 files changed, 108 insertions(+) create mode 100644 fine-itext-old/test/com/fr/third/com/lowagie/text/ImageTest.java create mode 100644 fine-itext-old/test/com/fr/third/com/lowagie/text/actual.pdf create mode 100644 fine-itext-old/test/com/fr/third/com/lowagie/text/expect.pdf create mode 100644 fine-itext-old/test/com/fr/third/com/lowagie/text/transparent_image.png diff --git a/fine-itext-old/test/com/fr/third/com/lowagie/text/ImageTest.java b/fine-itext-old/test/com/fr/third/com/lowagie/text/ImageTest.java new file mode 100644 index 000000000..699d98d92 --- /dev/null +++ b/fine-itext-old/test/com/fr/third/com/lowagie/text/ImageTest.java @@ -0,0 +1,108 @@ +import com.fr.third.com.lowagie.text.Document; +import com.fr.third.com.lowagie.text.RectangleReadOnly; +import com.fr.third.com.lowagie.text.pdf.PdfContentByte; +import com.fr.third.com.lowagie.text.pdf.PdfGraphics2D; +import com.fr.third.com.lowagie.text.pdf.PdfTemplate; +import com.fr.third.com.lowagie.text.pdf.PdfWriter; +import org.junit.Test; +import org.junit.Assert; + +import javax.imageio.ImageIO; +import java.awt.Color; +import java.awt.image.BufferedImage; +import java.io.File; +import java.io.FileOutputStream; +import java.io.IOException; +import java.nio.file.Files; +import java.util.Arrays; + + + +/** + * Image单元测试类 + * 不在打包范围内，只是留个凭证，需要自己添加junit 依赖才能跑 + * + * @author obo + * @since 11.0 + * Created on 2023/9/6 + */ +public class ITextDrawPdfImageTest { + + @Test + public void testDrawOpaqueAndTransparentImage() throws Exception { + // 创建文档对象 + Document document = new Document(new RectangleReadOnly(90,90)); + // 创建PdfWriter以将文档写入文件 + PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("actual.pdf")); + BufferedImage image = ImageIO.read(new File("transparent_image.png")); + + Assert.assertTrue(checkImageValid(image)); + + // 打开文档 + document.open(); + + // 获取PdfContentByte用于在PDF页面上绘制内容 + PdfContentByte contentByte = writer.getDirectContent(); + + // 创建PdfTemplate，作为图形容器 + PdfTemplate template = contentByte.createTemplate(90, 90); + PdfGraphics2D graphics2D = (PdfGraphics2D) template.createGraphics(90, 90); + + // 在Graphics2D上绘制图像或其他内容 + graphics2D.drawImage(image, 0, 0, null); + + // 释放Graphics2D资源 + graphics2D.dispose(); + + // 将PdfTemplate添加到PDF页面 + contentByte.addTemplate(template, 0, 0); // X, Y 坐标 + // 关闭文档 + document.close(); + + File actual = new File("actual.pdf"); + File expect = new File("expect.pdf"); + + Assert.assertTrue(checkFilesEqual(actual, expect)); + } + + + private boolean checkFilesEqual(File actual, File expect) throws IOException { + byte[] actualBytes = Arrays.copyOfRange(Files.readAllBytes(actual.toPath()), 0, 1024); + byte[] expectBytes = Arrays.copyOfRange(Files.readAllBytes(expect.toPath()), 0, 1024); + + return java.util.Arrays.equals(actualBytes, expectBytes); + } + + /** + * 检查Image是否是一种完全透明颜色+一种完全不透明颜色构成的 + */ + private boolean checkImageValid(BufferedImage image) { + int transparentColor = -1, unTransparentColor = -1; + + int width = image.getWidth(); + int height = image.getHeight(); + + for (int x = 0; x < width; x++) { + for (int y = 0; y < height; y++) { + int rgb = image.getRGB(x, y); + int alpha = (rgb >> 24) & 0xFF; + int color = rgb & 0xFFFFFF; + if(alpha == 0) { + if (transparentColor == -1) { + transparentColor = color; + } else if (transparentColor != color) { + return false; + } + } + if(alpha == 255) { + if (unTransparentColor == -1) { + unTransparentColor = color; + } else if (unTransparentColor != color) { + return false; + } + } + } + } + return true; + } +} \ No newline at end of file diff --git a/fine-itext-old/test/com/fr/third/com/lowagie/text/actual.pdf b/fine-itext-old/test/com/fr/third/com/lowagie/text/actual.pdf new file mode 100644 index 0000000000000000000000000000000000000000..dbc229d9f4385ed935a9f5e4a3a7eb3d30924bf1 GIT binary patch literal 1601 zcmds1&1(}u6tALE7X=YT+k?&}n6}uN+3apMQi3Ki8Z{V`fQ6XD?CvD4COdI9t`y9Z@F=M0rU`!cR$*zv5hq#{ z=9;8V;cn{J4-0@1f?2;ID2Lew5i~-o9<9G2qKmjOAKj4|u1)J!37H4_bJKkF zv^FzbMrG8O>c4*T?yb!iYj>tD-Cy%;dEeB>m5&$iX!dqYvp`7lLZD7joTa^>Odxg{z<1xi5zSf*_OW>u8xj_K~0tIml=rj6Gyz-rl~G*}>9sl@2)lc%0f zQmkD;@-v~HYBH$~ssK?rU7gQKHp_VPuQJUO!TmOzB!ULo5YjFS+6!8yJj! 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