King :
I hava a javafx application where the user enters some details in test fields and it is shown on a listview. I now have a button to print using the printjob but everytime I hit the print button the printer prints garbage data like jhsjs6sh3#uhbsbkahi instead of the real values from the ListView. below is my codes for the print functon
public void print (final Node node) {
Printer printer = Printer.getDefaultPrinter();
PageLayout pageLayout = printer.createPageLayout(Paper.A4, PageOrientation.PORTRAIT, Printer.MarginType.HARDWARE_MINIMUM);
final double scaleX = pageLayout.getPrintableWidth() / node.getBoundsInParent().getWidth();
final double scaleY = pageLayout.getPrintableHeight() / node.getBoundsInParent().getHeight();
node.getTransforms().add(new Scale(scaleX, scaleY));
PrinterJob job =PrinterJob.createPrinterJob();
if (job != null ){
boolean success = job.printPage(node);
System.out.println("printed");
if (success){
System.out.println(success);
job.endJob();
}
}
}
@FXML
private void printOps(ActionEvent event){
print(billingDataList);
}
I use a MacBook for my development and HP printer.
Sedrick :
You will have to figure out the scaling. This prints using SnapShot and awt. Using code from here.
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.awt.print.PageFormat;
import static java.awt.print.Printable.NO_SUCH_PAGE;
import static java.awt.print.Printable.PAGE_EXISTS;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;
import java.io.File;
import java.io.IOException;
import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.embed.swing.SwingFXUtils;
import javafx.scene.Scene;
import javafx.scene.SnapshotParameters;
import javafx.scene.control.Button;
import javafx.scene.control.ListView;
import javafx.scene.image.Image;
import javafx.scene.image.WritableImage;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
import javax.imageio.ImageIO;
/**
*
* @author blj0011
*/
public class JavaFXApplication61 extends Application
{
@Override
public void start(Stage primaryStage)
{
ListView<String> list = new ListView<>();
ObservableList<String> items = FXCollections.observableArrayList("A", "B", "C", "D");
list.setItems(items);
VBox root = new VBox();
Button btn = new Button();
btn.setText("Say 'Hello World'");
btn.setOnAction((event) ->
{
WritableImage image = list.snapshot(new SnapshotParameters(), null);
File file = new File("nodeImage.png");
try
{
ImageIO.write(SwingFXUtils.fromFXImage(image, null), "png", file);
Image imageToPrint = new Image(file.toURI().toString());
BufferedImage bufferedImage = SwingFXUtils.fromFXImage(imageToPrint, null);
printImage(bufferedImage);
}
catch (IOException ex)
{
System.out.println(ex.toString());
}
});
root.getChildren().add(btn);
root.getChildren().add(list);
Scene scene = new Scene(root, 1080, 720);
primaryStage.setTitle("Hello World!");
primaryStage.setScene(scene);
primaryStage.show();
}
/**
* @param args the command line arguments
*/
public static void main(String[] args)
{
launch(args);
}
private void printImage(BufferedImage image)
{
PrinterJob printJob = PrinterJob.getPrinterJob();
printJob.setPrintable((Graphics graphics, PageFormat pageFormat, int pageIndex) ->
{
// Get the upper left corner that it printable
int x = (int) Math.ceil(pageFormat.getImageableX());
int y = (int) Math.ceil(pageFormat.getImageableY());
if (pageIndex != 0)
{
return NO_SUCH_PAGE;
}
graphics.drawImage(image, x, y, image.getWidth(), image.getHeight(), null);
return PAGE_EXISTS;
});
try
{
printJob.print();
}
catch (PrinterException e1)
{
e1.printStackTrace();
}
}
}
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