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add pdf export of wallet output descriptor from qr display dialog

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This commit is contained in:
Craig Raw 2022-03-31 14:14:20 +02:00
parent d9bba16eb6
commit af9eb3cc64
5 changed files with 78 additions and 2 deletions
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1
build.gradle
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@ -97,6 +97,7 @@ dependencies {
implementation('io.reactivex.rxjava2:rxjavafx:2.2.2')
implementation('org.apache.commons:commons-lang3:3.7')
implementation('net.sourceforge.streamsupport:streamsupport:1.7.0')
implementation('com.github.librepdf:openpdf:1.3.27')
testImplementation('junit:junit:4.12')
}

73
src/main/java/com/sparrowwallet/sparrow/control/DescriptorQRDisplayDialog.java Normal file
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@ -0,0 +1,73 @@
package com.sparrowwallet.sparrow.control;
import com.lowagie.text.*;
import com.lowagie.text.Font;
import com.lowagie.text.Image;
import com.lowagie.text.pdf.PdfWriter;
import com.sparrowwallet.hummingbird.UR;
import com.sparrowwallet.hummingbird.UREncoder;
import com.sparrowwallet.sparrow.AppServices;
import javafx.embed.swing.SwingFXUtils;
import javafx.event.ActionEvent;
import javafx.scene.control.*;
import javafx.scene.control.Button;
import javafx.stage.FileChooser;
import javafx.stage.Stage;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.awt.*;
import java.io.File;
import java.io.FileOutputStream;
public class DescriptorQRDisplayDialog extends QRDisplayDialog {
private static final Logger log = LoggerFactory.getLogger(DescriptorQRDisplayDialog.class);
public DescriptorQRDisplayDialog(String walletName, String outputDescriptor, UR ur) {
super(ur);
DialogPane dialogPane = getDialogPane();
final ButtonType pdfButtonType = new javafx.scene.control.ButtonType("Save PDF...", ButtonBar.ButtonData.HELP_2);
dialogPane.getButtonTypes().add(pdfButtonType);
Button pdfButton = (Button)dialogPane.lookupButton(pdfButtonType);
pdfButton.addEventFilter(ActionEvent.ACTION, event -> {
savePdf(walletName, outputDescriptor, ur);
event.consume();
});
}
private void savePdf(String walletName, String outputDescriptor, UR ur) {
Stage window = new Stage();
FileChooser fileChooser = new FileChooser();
fileChooser.setTitle("Save PDF");
fileChooser.setInitialFileName(walletName + ".pdf");
AppServices.moveToActiveWindowScreen(window, 800, 450);
File file = fileChooser.showSaveDialog(window);
if(file != null) {
try(Document document = new Document()) {
document.setMargins(36, 36, 48, 36);
PdfWriter.getInstance(document, new FileOutputStream(file));
document.open();
Font titleFont = FontFactory.getFont(FontFactory.HELVETICA_BOLD, 16, Color.BLACK);
Chunk title = new Chunk("Output descriptor for " + walletName, titleFont);
document.add(title);
UREncoder urEncoder = new UREncoder(ur, 2000, 10, 0);
String fragment = urEncoder.nextPart();
if(urEncoder.isSinglePart()) {
Image image = Image.getInstance(SwingFXUtils.fromFXImage(getQrCode(fragment), null), Color.WHITE);
document.add(image);
}
Font descriptorFont = FontFactory.getFont(FontFactory.COURIER, 14, Color.BLACK);
Paragraph descriptor = new Paragraph(outputDescriptor, descriptorFont);
document.add(descriptor);
} catch(Exception e) {
log.error("Error creating descriptor PDF", e);
AppServices.showErrorDialog("Error creating PDF", e.getMessage());
}
}
}
}

2
src/main/java/com/sparrowwallet/sparrow/control/QRDisplayDialog.java
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@ -137,7 +137,7 @@ public class QRDisplayDialog extends Dialog<UR> {
}
}
private Image getQrCode(String fragment) {
protected Image getQrCode(String fragment) {
try {
QRCodeWriter qrCodeWriter = new QRCodeWriter();
BitMatrix qrMatrix = qrCodeWriter.encode(fragment, BarcodeFormat.QR_CODE, QR_WIDTH, QR_HEIGHT);

3
src/main/java/com/sparrowwallet/sparrow/wallet/SettingsController.java
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@ -324,6 +324,7 @@ public class SettingsController extends WalletFormController implements Initiali
return;
}
OutputDescriptor outputDescriptor = OutputDescriptor.getOutputDescriptor(walletForm.getWallet(), KeyPurpose.DEFAULT_PURPOSES, null);
List<ScriptExpression> scriptExpressions = getScriptExpressions(walletForm.getWallet().getScriptType());
CryptoOutput cryptoOutput;
@ -341,7 +342,7 @@ public class SettingsController extends WalletFormController implements Initiali
}
UR cryptoOutputUR = cryptoOutput.toUR();
QRDisplayDialog qrDisplayDialog = new QRDisplayDialog(cryptoOutputUR);
QRDisplayDialog qrDisplayDialog = new DescriptorQRDisplayDialog(walletForm.getWallet().getFullDisplayName(), outputDescriptor.toString(true), cryptoOutputUR);
qrDisplayDialog.showAndWait();
}

1
src/main/java/module-info.java
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@ -44,4 +44,5 @@ open module com.sparrowwallet.sparrow {
requires org.apache.commons.lang3;
requires net.sourceforge.streamsupport;
requires co.nstant.in.cbor;
requires com.github.librepdf.openpdf;
}