如何使用Java高品质使用Graphic2D抽绳和图像？

问题描述

这是我生成QR码的代码。我想生成带有字符串和图像徽标的QR，如下图所示。我也尝试过使用渲染提示，但是结果对此无济于事。

g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON)
g2.setRenderingHint(RenderingHints.KEY_RENDERING,RenderingHints.VALUE_RENDER_QUALITY)
g2.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL,RenderingHints.VALUE_STROKE_PURE)

def generateQrCodePNG(QRCodeModel qrCode) {
        int sizeW = 563
        int sizeH = 644
        try {
            BitMatrix byteMatrix = createBitMatrixPNG(qrCode.QRText,sizeW,sizeH)
            Integer CrunchifyWidth = byteMatrix.getWidth()
            Integer CrunchifyHeight = byteMatrix.getHeight()
            BufferedImage image = new BufferedImage(CrunchifyWidth,CrunchifyHeight,BufferedImage.TYPE_INT_ARGB)
            Graphics2D graphics = (Graphics2D) image.getGraphics()

            graphics.setColor(Color.WHITE)
            graphics.fillRect(0,CrunchifyWidth,CrunchifyHeight)


            //clear font
            GraphicsEnvironment ge =
                    GraphicsEnvironment.getLocalGraphicsEnvironment()

            //Register Font
            ge.registerFont(Font.createFont(Font.TRUETYPE_FONT,new File("${servletContext.getRealPath("/")}/assets/fonts/KhmerOS_content.ttf")))
            graphics.setFont(new Font("Khmer OS Content",Font.PLAIN,28))
            // add string title above qrCode
            drawString(graphics,graphics.getFontMetrics().stringWidth(qrCode.storeName),450,qrCode.storeName,28,"Khmer OS Content",Color.BLACK
            )

            Integer h1 = sizeH
            Integer w1 = sizeW
            Integer x1 = (Integer) ((sizeW) / 2 - w1 / 2)
            Integer y1 = (Integer) ((sizeH) / 2 - h1 / 2)

            float dash1 = 10.0f
            graphics.setColor(Color.BLACK)
            BasicStroke dashed =
                    new BasicStroke(1.0f,BasicStroke.CAP_BUTT,BasicStroke.JOIN_MITER,10.0f,dash1 as float[],0.0f)
            graphics.setStroke(dashed)
            graphics.draw(new RoundRectangle2D.Double(x1,y1,CrunchifyWidth - 2,CrunchifyHeight - 5,1,1))

            graphics.setColor(Color.BLACK)
            for (int i = 0; i < CrunchifyWidth; i++) {
                for (int j = 0; j < CrunchifyHeight; j++) {
                    if (byteMatrix.get(i,j)) {
                        graphics.fillRect(i,j,1)
                    }
                }
            }
            if(qrCode.qr_type == Constant.QR_WITH_LOGO) {
                // set white background color
                graphics.setColor(Color.white)
                Integer h = 60
                Integer w = 60
                Integer x = (Integer) (CrunchifyWidth / 2 - w / 2)
                Integer y = (Integer) (CrunchifyHeight / 2 - h / 2)
                graphics.fillRoundRect(x,y,w,h,10,10)


                String logo = "${servletContext.getRealPath("/")}/assets/logo/AMK Mobile-Logo-high 1.png"

                //add  image into qrCode
                File fileLogo = new File(logo)
                Image logoImage1 = ImageIO.read(fileLogo)
                graphics.setColor(Color.white)
                Integer imgH = 55
                Integer imgW = 55
                Integer imgX = (Integer) (CrunchifyWidth / 2 - imgW / 2)
                Integer imgY = (Integer) (CrunchifyHeight / 2 - imgH / 2)
                graphics.drawImage(logoImage1,imgX,imgY,imgW,imgH,null)
            }

            //Register Font
            graphics.setFont(new Font("Khmer OS Content",24))
            // add string title above qrCode
            drawString(graphics,graphics.getFontMetrics().stringWidth(qrCode.cashier),-450,qrCode.cashier,24,"Khmer OS Content"
            )

            //Register Font
            graphics.setFont(new Font("Archive Regular",graphics.getFontMetrics().stringWidth("${qrCode.account_id} | ${qrCode.currency}"),-550,"${qrCode.account_id} | ${qrCode.currency}","Archive Regular"
            )

            graphics.dispose()
            File myFile = new File(qrCode.file_path + qrCode.file_name)
            ImageIO.write(image,"PNG",myFile)

        } catch (WriterException e) {
            e.printStackTrace()
        } catch (IOException e) {
            e.printStackTrace()
        }
        System.out.println("\n\nYou have successfully created QR Code.")
    }

这是生成后的结果，缩放图像时，我得到的图像png具有错误的文字和徽标：

解决方法

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