SmartJReport - (JTree - Print, PDF, TIFF, PostScript, PNG, BMP, GIF, JPG, JPEG and more)
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print, PDF and conversion requirements.
Print, PDF, Preview JTree - The Demo
This demo sample shows how to Print, PDF or simply preview an existing JTree.
You can "silent print your JTree" using the
JavaTreePrinter methods which
you can learn looking the at the
In the downloaded archive you will see some sample batch programs (e.g.
and more). For each batch
file there is a corresponding JAVA sample program made available as part of the downloaded
archive. Run the "
" for example to see the following window
with a JTree and few buttons to "Print", "PDF" and "Preview" the JTree. You will also see
a button to let you choose a different directory root to be loaded as the new JTree.
This sample shows a JTree expanded only a little bit.
Yet another view of JTree demo sample program showing a lot of nodes are expanded and some
of the nodes has files of very long name. Since it lets you FIT the content within the
page width you will able to see the full tree without loosing anything.
You can either "silent print your JTree" or provide a UI control such as a Button as demonstrated
in this sample program and print. Depending on the arguments to the
JavaTreePrinter.print() method you show a "printer dialog" or print without
showing a print dialog. In this sample we show a "print dialog" to let user select a printer,
paper, orientation, copies, fit to printable area and others as seen in the print dialog next.
Print JTree - Fit to Page Width
JavaTreePrinter lets you set a FIT flag so the output may be fit
to the page width. It is better to always set the flag so it can fit to page width applying
compression if necessary. Available fit options are
(no fit) and
AbstractPrinter.PAGE_SCALING_FIT_TO_PRINTABLE_AREA (fit to page width)
setPageScaling(int) method. In the print dialog there is a check box
"Fit to Printable Area" is equivalent to the above.
The report engine can let you convert the JTree report pages to a PDF document. You can convert
JTree to PDF completely silently by getting a
JTree to PDF (no fit)
JTree to PDF (fit to page width)
JavaTreePrinter.Pageable() and then passing the
ConversionFactory.saveAsPdf(Pageable) method. Following are some sample
PDF created from Swing JTree.
It lets you preview JTree report in a preview window.
JavaTreePrinter class has
preview() methods to call for showing the preview window. This demo chooses
to show a paper selection dialog before showing the preview window. It is also important to
remember that the preview window has options for the end user to Print, PDF and conversion
to images. Preview window also lets you zoom in and out in order to control number of pages to output.
Select paper size and orientation from this "Paper Selection" window.
Here is how the Print Preview window looks like. It shows JTree Preview pages one at a time
and you can browse them using the controls in the tool bar.
JTree to PNG, BMP, GIF and JPEG/JPG
Look at the "Report2ResizedPNG.java" and other conversion sample in the downloaded archive to learn about how.
There are ways to convert JTree report pages to many different image formats such as PNG, BMP, GIF and JPEG/JPG.
If you want to convert JTree to images silently we suggest you to get a
Pageable (each page of
which is an AbstractPage) form the
JavaTreePrinter class and then pass the
ConversionFactory.saveAsJPG(AbstractPage) (JPG) to convert to images.
Conversion APIs provides the option to pass a resize factor so the output images size can be enlarged or shrinked.
This demo sample lets you preview the JTree report pages. From the preview window you can
convert one or more of the JTree report pages to images.
JTree to TIFF
This is similar to the above. Get the
Pageable (convert to AbstractPage array) and
ConversionFactory.saveAsTIFF(AbstractPage) to produce the TIFF report.
Also look at
Report2ResizedTiffDemo.java demo sample in the downloaded archive.
JTree to Post Script
Pageable and create an array of
AbstractPage then call
ConversionFactory.saveAsPostScript(AbstractPage) to produce the Post Script
output of your JTree report.
Also look at
Report2PostScriptDemo.java demo sample in the downloaded archive.