Hi John!
Thank you for your quick reply. Here is my code for having multiple labels
inside a VBox, which is located in a ScrollPane - with one problem inside the
loop...
@FXML
private Button button;
@FXML
private Label label;
@FXML
private VBox scrollBox;
// @FXML
// private ScrollPane scrollPane;
BufferedImage bufImage = null;
WritableImage image = null;
Label labelGraphics = new Label();
Label labelGraphics2 = new Label();
PDDocument doc = PDDocument.load(file);
int countPages = doc.getNumberOfPages();
PDFRenderer renderer = new PDFRenderer(doc);
// approach two or more pages per document - for testing only
bufImage = renderer.renderImage(0, scale);
image = SwingFXUtils.toFXImage(bufImage, null);
scrollBox.getChildren().add(labelGraphics);
labelGraphics.setGraphic(new ImageView(image));
bufImage = renderer.renderImage(1, scale);
image = SwingFXUtils.toFXImage(bufImage, null);
scrollBox.getChildren().add(labelGraphics2);
labelGraphics2.setGraphic(new ImageView(image));
// one label per pdf-page
for (int i = 0; i < countPages; i++) {
bufImage = renderer.renderImage(i, scale);
image = SwingFXUtils.toFXImage(bufImage, null);
scrollBox.getChildren().add(new Label("labGraph" + i));
// how to access Label named "labGraph" + i
// to do next acion setGraphic()?
}
doc.close();
The static approach for testing works. But how can i access the dynamically
created Label to proceed ahed with "'labGraph + i'.setGraphic(new
ImageView(image));"?
Next problem: graphics are rendered at different sizes according to the content
of the document. How could i get the renderer to compute an image from any
document that fits by width in my VBox?
Thank's.
Thank's to Tilman for quickly replying too.
Kind regards,
Siegfried
-
Siegfried Gstöttner
[email protected]
-----Ursprüngliche Nachricht-----
Von: John Hewson [mailto:[email protected]]
Gesendet: Dienstag, 19. Juli 2016 19:12
An: [email protected]
Betreff: Re: pdf viewer needed
> On 19 Jul 2016, at 05:34, Gstöttner Siegfried
> <[email protected]> wrote:
>
> Hi!
>
> I am pretty new to java and currently working on an application for printing
> serial letters in JavaFX. I would like to give the user an overview of the
> result in a simple pdf-viewer. Like that one shown in an example prior to
> ver2.0. Could anybody tell me how to implement this with the actual libry?
> Examples missing or i could not find them. Are there any experiences with
> usage of Java FX8 Swingnode class to display such a viewer? Thank you very
> much.
Assuming you already have a PDDocument, and a Label named “pageView”, you can
render individual pages into the Label as follows:
PDFRenderer renderer = new PDFRenderer(doc); BufferedImage bufImage =
renderer.renderImage(0); Image image = SwingFXUtils.toFXImage(bufImage, null);
pageView.setGraphic(new ImageView(image));
I’d recommend taking this approach and letting JavaFX handle any scrolling of
the Label. You can then have multiple labels for multiple pages, or a single
label and next/prev page buttons.
— John
> Kind regards,
> Siegfried
> -
> Siegfried Gstöttner
> [email protected]
>
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
