Hi Sanatt,
yep, that looks good.
Instead of using the AWT Clipboard, we could also try to use the SWT
clipboard, which might match in case of SWTChart better:
org.eclipse.swt.dnd.clipboard
Best,
Philip
Am 05.04.19 um 10:43 schrieb Sanatt
Abrol:
Hi Philip, hope you are doing well.
Here is a link to my draft proposal, please let me know
what you think :)
Yep, have a look at the ImageFactory
in SWTChart Extensions:
ImageFactory<ChromatogramChart> imageFactory = new
ImageFactory<ChromatogramChart>(ChromatogramChart.class,
800, 600);
ChromatogramChart chromatogramChart =
imageFactory.getChart();
chromatogramChart.setBackground(chromatogramChart.getBaseChart().getDisplay().getSystemColor(SWT.COLOR_WHITE));
...
imageFactory.saveImage(exportFolder + File.separator +
prefix + ".png", SWT.IMAGE_PNG);
On a headless Linux server, Xvfb could be utilized.
Otherwise, resolution is limited by Display size.
Best,
Philip
Am
01.04.19 um 17:09 schrieb Sanatt Abrol:
Great.
Also, how do you like the idea of converting our
base scrollable chart into an image and then
converting into a PDF? We can give the user some
options like deciding page size, adjusting alignment,
adding text, etc? This could be done under the
extensions menu for SWTChart and then open a
fileChooser to get the URI for the final pdf file.
Also I found out, that in Java, all rendering goes
through the Graphics2D abstract
class. We can SVGGenerator2D class from the Apache
Batik project to create .svg files for our charts.
We can repeat the same process for conversion to .eps
format. I've found multiple examples on the Apache
XMLGraphics project which illustrate this.
I'll be adding them to my draft proposal and share
them with you soon.
Also, I've noticed that many students are posting
their proposal drafts on the [soc-dev] mailing list.
Is it ok, if I post a link to my draft proposal in
[swtchart-dev] instead of [soc-dev]?
Yep, on all projects we're
working on the development branch.
The exported LaTeX table could be pasted in a *.tex
document. Sure, it would be great if the export
offers a Clipboard solution too or a way to export
an LaTeX image. This could be part of the GSoC
proposal.
Best,
Philip
Am
01.04.19 um 15:45 schrieb Sanatt Abrol:
Yes, found it thank
you. I was looking in the 'master' branch
earlier. It was in the 'develop' branch.
About copying LaTeX table to clipboard. Do we
have to simply put the LaTeX table generated by
the tableExportHandler to the system clipboard?
Hi Sanatt,
the PDFBox extensions, which I've written,
are part of ChemClipse:
org.eclipse.chemclipse.pdfbox.extensions
org.eclipse.chemclipse.pdfbox.extensions.fragment.test
git://git.eclipse.org/gitroot/chemclipse/org.eclipse.chemclipse.chemclipsecore.git
We probably could move the Code from
ChemClipse to SWTChart.
It would be great if the user could
select page size, alignment, etc.. The
PDFBox extension PageUtil should contain
already many of the desired alignment
features. Some are missing like print a
polygon or print the Bar, Line, Scatter
chart. This could be part of the work.
In SWTChart, we already have a LaTeX
table export on board. This might match
your needs. Have you already had a look
at TeXClipse?
https://projects.eclipse.org/proposals/eclipse-texlipse
Best,
Philip
Am
01.04.19 um 15:26 schrieb Sanatt Abrol:
Hi Philip,
I was working on writing the
proposal and I can't find org.eclipse.chemclipse.pdfbox.extensions
Is this moved elsewhere?
Earlier,
I found this bug
report with an example on how to
use the PDFBox library.
Also, when adding the PDF export
option, I think it would be helpful
to give the user options to select
page size, alignment options, insert
captions, etc. What do you think
about this?
We also need to copy a pre-built
LaTeX table to the clipboard. Is
this the same LaTeX table exported
from org.eclipse.swtchart.extensions.menu.export.LaTeXTableExportHandler.java
Best,
Sanatt
Yep,
that sounds like a good plan.
Apache is a good choice and
Apache Batik and others are
already listed in Eclipse
Orbit:
https://download.eclipse.org/tools/orbit/downloads/drops/R20190226160451/
It means, that when can use
them out of the box.
Please share your proposal and
keep an eye on the GSoC
deadlines.
Best,
Philip
Am
27.03.19 um 09:34 schrieb
Sanatt Abrol:
Hi Philip,
Thank you for your
quick reply. Yes, I am
interested in doing this
project as part of GSoC
2019. I am sorry for
being late to the party
:P as I was travelling
abroad for the past
three weeks and unable
to give this the
required effort. I've
looked into the code
base, we can add new
export handlers to org.eclipse.swtchart.extensions.menu.export
package.
I'll look into the
PDFBox library and see
how we can use it for
our purpose. Your work
on the chemclipse
project is really
helpful.
For .svg and .eps
formats, which are
basically XML files, I
suggest we use Apache
XML Graphics Project which
has a similar license to
Apache PDFBox. Please
let me know what you
think about this.
I will share with you
a draft proposal by
April 2nd which will
give us a week's time to
make required changes
before the April 9th
deadline.
Danke,
Sanatt
Hi Sanatt,
iText s licensed under
the AGPL, so it will
never find its way
into the Eclipse
ecosystem.That's why I
would recommend to use
Apache PDFBox. We
already have a CQ in
ChemClipse for Apache
PDFBox version 2.0.6.
So I would recommend
trying to bring 2.0.6.
and the latest version
2.0.14 to Eclipse
Orbit so that it can
be easily re-used by
Eclipse projects:
Apache PDFBox
https://pdfbox.apache.org
Eclipse Orbit
https://download.eclipse.org/tools/orbit/downloads/drops/R20190226160451/
PDFBox is a powerful
library. But it needs
some knowledge to
align elements like
text, images.
Especially if you'd
like to layout a
report e.g. in DIN A4
with center top left
and scale mm. That's
why I have already
written an extension
to use this library in
a more convenient way:
https://git.eclipse.org/c/chemclipse/org.eclipse.chemclipse.chemclipsecore.git?h=develop
org.eclipse.chemclipse.pdfbox.extensions
org.eclipse.chemclipse.pdfbox.extensions.fragment.test -> see options
in PageUtil_1_ITest
Writing an export
converter for SWTChart
is a great idea. It's
already possible to
add new export
converter via two
options
A) add a menu
extension
B) register an
extension via the
extension point
Have a look at the
example bundle
(org.eclipse.swtchart.extensions.examples)
package
(org.eclipse.swtchart.extensions.examples.menu):
A) ZoomInHandler...
->
chartSettings.addMenuEntry(new
ZoomInHandler());
B)
ResetXAxisHandler...
->
MenuEntry="org.eclipse.swtchart.extensions.examples.menu.ResetXAxisHandler"
I've also played with
the library
VectorGraphics2d, but
it is licensed under
the GPL (see problem
iText), so it can't be
bundled with SWTChart:
https://github.com/eseifert/vectorgraphics2d
https://github.com/OpenChrom/swtchartvectorgraphics/tree/develop
So, I could be a
mentor to help you
implementing
extensions via the
GSoC program. Student
applications period is
open until April, 9th.
Do you plan to attend
and to submit a
proposal?
https://summerofcode.withgoogle.com/dashboard/timeline/
Best,
Philip
Am
26.03.19 um 18:32
schrieb Sanatt
Abrol:
Hi
everyone, I hope
you are doing
well. We need to
add new export
options like
.pdf, .svg etc.
I was doing
some research
over this and
found iText and Apache PDFBox as libraries we
can use to
export our
'imageData'. iText has
both free and
commercial
license which I
doubt we can use
in our case.
Apache PDFBox
however is
open-source.
Is it
possible to use
Apache PDFBox
for our
project?
If not, then
I suppose we are
required to
write our own
'pdf exporter'
which is
something I
think the whole
Eclipse
community can
benefit from (if
something like
this is not
already written
by the
community).
Please let me
know what you
think :)
Regards,
Sanatt
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