Hi Sanatt,
your proposal looks fine.
I'll take care how to make the pdfbox.extensions available for
SWTChart.
Best,
Philip
Am 06.04.19 um 12:48 schrieb Sanatt
Abrol:
Hi Philip,
Thank you for the advice! I had no idea we had an option of
clipboard in Eclipse SWT. I've updated this in the proposal
and also included a snippet. Is there anything else that needs
more work?
Thanks,
Sanatt
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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