Java源码示例：net.glxn.qrgen.QRCode
示例1
@FXML
protected void showQRCode(MouseEvent event) {
// Serialize to PNG and back into an image. Pretty lame but it's the shortest code to write and I'm feeling
// lazy tonight.
final byte[] imageBytes = QRCode
.from(uri())
.withSize(320, 240)
.to(ImageType.PNG)
.stream()
.toByteArray();
Image qrImage = new Image(new ByteArrayInputStream(imageBytes));
ImageView view = new ImageView(qrImage);
view.setEffect(new DropShadow());
// Embed the image in a pane to ensure the drop-shadow interacts with the fade nicely, otherwise it looks weird.
// Then fix the width/height to stop it expanding to fill the parent, which would result in the image being
// non-centered on the screen. Finally fade/blur it in.
Pane pane = new Pane(view);
pane.setMaxSize(qrImage.getWidth(), qrImage.getHeight());
final Main.OverlayUI<ClickableBitcoinAddress> overlay = Main.instance.overlayUI(pane, this);
view.setOnMouseClicked(event1 -> overlay.done());
}
示例2
@FXML
protected void showQRCode(MouseEvent event) {
// Serialize to PNG and back into an image. Pretty lame but it's the shortest code to write and I'm feeling
// lazy tonight.
final byte[] imageBytes = QRCode
.from(uri())
.withSize(320, 240)
.to(ImageType.PNG)
.stream()
.toByteArray();
Image qrImage = new Image(new ByteArrayInputStream(imageBytes));
ImageView view = new ImageView(qrImage);
view.setEffect(new DropShadow());
// Embed the image in a pane to ensure the drop-shadow interacts with the fade nicely, otherwise it looks weird.
// Then fix the width/height to stop it expanding to fill the parent, which would result in the image being
// non-centered on the screen. Finally fade/blur it in.
Pane pane = new Pane(view);
pane.setMaxSize(qrImage.getWidth(), qrImage.getHeight());
final Main.OverlayUI<ClickableBitcoinAddress> overlay = Main.instance.overlayUI(pane, this);
view.setOnMouseClicked(event1 -> overlay.done());
}
示例3
@FXML
protected void showQRCode(MouseEvent event) {
// Serialize to PNG and back into an image. Pretty lame but it's the shortest code to write and I'm feeling
// lazy tonight.
final byte[] imageBytes = QRCode
.from(uri())
.withSize(320, 240)
.to(ImageType.PNG)
.stream()
.toByteArray();
Image qrImage = new Image(new ByteArrayInputStream(imageBytes));
ImageView view = new ImageView(qrImage);
view.setEffect(new DropShadow());
// Embed the image in a pane to ensure the drop-shadow interacts with the fade nicely, otherwise it looks weird.
// Then fix the width/height to stop it expanding to fill the parent, which would result in the image being
// non-centered on the screen. Finally fade/blur it in.
Pane pane = new Pane(view);
pane.setMaxSize(qrImage.getWidth(), qrImage.getHeight());
final Main.OverlayUI<ClickableBitcoinAddress> overlay = Main.instance.overlayUI(pane, this);
view.setOnMouseClicked(event1 -> overlay.done());
}
示例4
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
TwoFactorServlet.preventCaching(response);
String username = request.getParameter("username");
String secret = request.getParameter("secret");
String pic = makeTotpUrl(ISSUER, username, secret);
ByteArrayOutputStream qrImageOutput = QRCode.from(pic).to(ImageType.PNG)
.stream();
response.setContentType("image/png");
response.setContentLength(qrImageOutput.size());
OutputStream outStream = response.getOutputStream();
outStream.write(qrImageOutput.toByteArray());
outStream.flush();
outStream.close();
}
示例5
public QRCodeWindow(String bitcoinURI) {
this.bitcoinURI = bitcoinURI;
final byte[] imageBytes = QRCode
.from(bitcoinURI)
.withSize(250, 250)
.to(ImageType.PNG)
.stream()
.toByteArray();
Image qrImage = new Image(new ByteArrayInputStream(imageBytes));
qrCodeImageView = new ImageView(qrImage);
type = Type.Information;
width = 468;
headLine(Res.get("qRCodeWindow.headline"));
message(Res.get("qRCodeWindow.msg"));
}
示例6
public void update () {
PaymentRequest paymentRequest = Main.thunderContext.receivePayment(getAmount());
try {
byte[] payload = paymentRequest.getPayload();
FieldAddress.setText(Tools.bytesToHex(payload));
FieldHash.setText(Tools.bytesToHex(paymentRequest.paymentSecret.hash));
System.out.println(Tools.bytesToHex(payload));
final byte[] imageBytes = QRCode
.from(Tools.bytesToHex(payload))
.withSize(250, 250)
.to(ImageType.PNG)
.stream()
.toByteArray();
Image qrImage = new Image(new ByteArrayInputStream(imageBytes));
ImageQR.setImage(qrImage);
ImageQR.setEffect(new DropShadow());
StringSelection stringSelection = new StringSelection(Tools.bytesToHex(payload));
Clipboard clpbrd = Toolkit.getDefaultToolkit().getSystemClipboard();
clpbrd.setContents(stringSelection, null);
} catch (Exception e) {
e.printStackTrace();
}
}
示例7
public void update () {
System.out.println(Tools.bytesToHex(Main.node.pubKeyServer.getPubKey()));
if (secret == null) {
secret = new PaymentSecret(Tools.getRandomByte(20));
Main.dbHandler.addPaymentSecret(secret);
System.out.println("HASH: "+Tools.bytesToHex(secret.hash));
}
try {
byte[] payload = getPayload();
FieldAddress.setText(Tools.bytesToHex(payload));
FieldHash.setText(Tools.bytesToHex(secret.hash));
System.out.println(Tools.bytesToHex(payload));
final byte[] imageBytes = QRCode
.from(Tools.bytesToHex(payload))
.withSize(250, 250)
.to(ImageType.PNG)
.stream()
.toByteArray();
Image qrImage = new Image(new ByteArrayInputStream(imageBytes));
ImageQR.setImage(qrImage);
ImageQR.setEffect(new DropShadow());
StringSelection stringSelection = new StringSelection(Tools.bytesToHex(payload));
Clipboard clpbrd = Toolkit.getDefaultToolkit().getSystemClipboard();
clpbrd.setContents(stringSelection, null);
} catch (Exception e) {
e.printStackTrace();
}
}
示例8
private void updateQRCode() {
if (addressTextField.getAddress() != null && !addressTextField.getAddress().isEmpty()) {
final byte[] imageBytes = QRCode
.from(getBitcoinURI())
.withSize(150, 150) // code has 41 elements 8 px is border with 150 we get 3x scale and min. border
.to(ImageType.PNG)
.stream()
.toByteArray();
Image qrImage = new Image(new ByteArrayInputStream(imageBytes));
qrCodeImageView.setImage(qrImage);
}
}
示例9
/**
* 生成二维码
* @param content 内容
* @param charset 字符编码
* @param width 宽
* @param height 高
* @param target 生成后写入路径
* @throws FileNotFoundException
* @throws IOException
*/
private static void generateCode(String content,String charset,int width,int height,File target) throws FileNotFoundException,IOException {
ByteArrayOutputStream out = QRCode.from(content).withCharset(charset).withSize(width, height).to(ImageType.PNG).stream();
OutputStream outStream = new FileOutputStream(target);
outStream.write(out.toByteArray());
outStream.flush();
outStream.close();
}
