February 2014 - Inkscape Devel

Re: [Inkscape-devel] URI
by Markus Engel 26 Feb '14

26 Feb '14

You may simply remove everything except the util folder,and dom.h domimpl.cpp domimpl.h domptr.cpp domptr.h ucd.cpp ucd.h uri.cpp uri.h Actually, that's about 50000 lines less :) . ------------------------------------------------------------------------------- Language files blank comment code ------------------------------------------------------------------------------- C++ 797 60098 60211 295830 C/C++ Header 1060 32179 58535 90647 ------------------------------------------------------------------------------- Language files blank comment code ------------------------------------------------------------------------------- C++ 782 57002 57216 286170 C/C++ Header 1037 24443 43941 77657 Regards, Markus -----Ursprüngliche Nachricht----- Von: Martin Owens [mailto:doctormo@...400...] Gesendet: Dienstag, 25. Februar 2014 17:59 An: Bryce Harrington Cc: Inkscape Devel List; Inkscape User Community Betreff: Re: [Inkscape-devel] URI On Mon, 2014-02-24 at 23:51 -0800, Bryce Harringtonwrote: > 2. Remove dom/ directory > This directory contains strange code which is barelyused. The only > class which is actually used is the URI class. That's worth knowing, I'll hack that up in my branch as Iadd the data uri support. Martin,

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[UX] Animation
by Mirek M. 26 Feb '14

26 Feb '14

Hi guys, I'm taking a class on UX design this semester and, throughout the semester, my task is to design a user interface (based on various techniques learned throughout the semester, including rigorous user testing). I've been pondering designing the UI for SVG animation in Inkscape. Would this be useful? If so, could you please clue me in to what the plans for animation in Inkscape are? The roadmap vaguely mentions "Animation support" and http://wiki.inkscape.org/wiki/index.php/SpecSVGAnimation seems to merely be a list of suggestions. What functionality might be part of an initial implementation?

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the Developer Education Book Campaign 2013 !
by Johan Engelen 25 Feb '14

25 Feb '14

Hello all, In an effort to give back to our developers, I hereby present to you the Developer Education Book Campaign 2013 ! We'd like to give an educational present to our most active contributors. The board has decided to buy a programming book for each of the top 10 contributors of 2013! The ranking is determined by the number of commits to trunk in the past 12 months, as calculated by Ohloh.net [1] [2]: Kris de Gussem Alex Valavanis Markus Engel Matthew Petroff Nicolas Dufour Martin Owens Tavmjong Bah Krzysztof Kosiński Sebastian Wüst Alvin Penner Thank you very much for your great work in 2013!!! These 2013 rockstars can choose from one of the following books: a) Effective C++, 3rd Ed. by Scott Meyers b) Refactoring: Improving the Design of Existing Code by Martin Fowler c) A Tour of C++ (C++11) by Bjarne Stroustrup The developer is also allowed to pass it on to the runner-up if he so wishes. Because I initiated the book campaign, I will pass (don't worry, I've already ordered my book ;). So now you might think: wait a minute..., these coders get a book on how to program... are they that bad? They are not bad; they could be even better! We all can improve our coding, and there is no shame at all in reading up and refreshing our coding skills. Every day I am reading Stroustrup's C++11 tome in the train to work, no joke! I hope you all will enjoy your present, and can perhaps share with us the best things you've learned :-) Cheers to a good start in 2014! Johan [1] http://www.ohloh.net/p/inkscape/contributors?query=&sort=commits_12_mo [2] I'm sorry if you feel this metric is unfair and skewed. We had to agree on some metric, knowing that any metric is imperfect.

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Reverting r13045
by Johan Engelen 24 Feb '14

24 Feb '14

Hi Martin, I'm sorry, I will revert commit 13045. 1. It contains a memleak realpath allocates new memory if the second argument is NULL. In the added code, this memory is never freed. 2. Breaks build on Windows (realpath(...) not found) 3. Please don't add functions that use C-strings unnecessarily. Simply rewrite parseDataUri to parseDataUri(const std::string &uri), and use C++'s string methods. ("#include <cstring.h>" is a huge red flag upon code review) 4. Please read this about "realpath" http://insanecoding.blogspot.ch/2007/11/pathmax-simply-isnt.html regards, Johan PS. (not related to commit) uri.cpp has a lot of "throw(BadURIException)", you can remove those as "throw(...)" don't add anything and will become obsolete in C++11.

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When and where are copied selections released during program exit?
by mathog 21 Feb '14

21 Feb '14

The topic pretty much says it all. I'm curious because valgrind output, already awash with style.cpp lines, picks up some new code points in that source file if one does: open file, select, copy, exit as compared to open file, exit Possibly items left on the clipboard? On a related note, is there a debugging facility already in Inkscape that logs to stdout or a file messages when SPObject objects are created, referenced, dereferenced, and destroyed? Something like: + 0x12345678 objectype1 # created at that address + 0x22345678 objectype2 ^ 0x12345678 0x22345678 # referenced by object at the second address (memory pointer) x 0x12345678 0x22345678 # dereferenced by object at the second address - 0x22345678 objectype2 # destroyed - 0x12345678 objectype1 That is pretty primitive but it would at least provide a simple way to follow these sorts of activities, which is otherwise pretty painful to do using gdb. I'm not sure how to fit signals into this log, but that would be helpful too. I'm not so sure this is possible since it tends to go through intervening functions, but something along these lines maybe? R+ 0x12345678 signaltype1 # register a signal this object responds to S+ 0x12345678 signaltype2 # register a signal this object can send < 0x12345678 signaltype1 # object received signal > 0x12345678 signaltype2 # object sent signal R- 0x12345678 signaltype1 # deregister a signal this object responds to S- 0x12345678 signaltype2 # deregister a signal this object can send Scripts could then be used to make some sort of graphic or other analysis, which would help visualize what is going on inside Inkscape. Thanks, David Mathog mathog@...1176... Manager, Sequence Analysis Facility, Biology Division, Caltech

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SPEventContext
by Arshdeep Singh 21 Feb '14

21 Feb '14

Hello all, I was cleaning up my branch of last year's GSoC project - Recolor Artwork. I was using a piece of code that involved SPEventContext but this doesn't compile anymore. I guess the structure was cppified by another GSoCer: Markus Engel. Well, I can't get around to how to use the alternate Event structure now. Can someone shed some light on it ? The piece of code that didn't compile was: void RecolorArtworkWidget::eventContextCB(SPDesktop * /*desktop*/, SPEventContext * /*eventcontext*/) { performUpdate(); } -- Arshdeep Singh Final Year, Computer Engineering Delhi Technological University Ph: +91-9654115614 https://sites.google.com/site/adsingh1729/home

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Python update
by unknown＠example.com 21 Feb '14

21 Feb '14

Hello everyone, I develop a set of extensions for Python. In my opinion, the extensions are easy to develop, great and powerful tool, widening the usability of Inkscape that help spread the Inkscape among users. Because of the need for GUI and websocket client, I've updated the version of Python in the Inkscape to 2.7 and added PyQt4 and ws4py libraries. All features has been tested on Windows. Now I would like to ask, whether there is a possibility to make this version a standard version included in the instalation of Inkscape? Eventually what steps are required to switch the Python version in the standard distribution of Inkscape? I can provide you the list of all steps, that have to be done to update the Python version for Windows and offer closer cooperation by making this change. I believe, this change would make the possibilities of the extensions even better, especially the possibility of having graphical user interface, which is easy to made. Best regards Lubomir =

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Inkscape circuit love ;)
by saar drimer 17 Feb '14

17 Feb '14

Hello Inkscape devs. In the past I've mentioned PCBmodE, an open source circuit design software I've written that uses Inkscape as its GUI (sort of). More here: https://bitbucket.org/boldport/pcbmode A few days ago I've released my first official product that includes a board I've made with PCBmodE (and Inkscape!) http://boldport.tictail.com/product/the-tiny-engineer-superhero-emergency-k… http://boldport.com/boards/emergency/index.html I'll be donating 50p to the Inkscape Fund for each unit from the first batch of 300 that sells. Inkscape has been an integral part of creating this product (PCB and print design), and I'd like to give back to you developers for the great work and effort you've been putting into this software! I'm writing this to you in the hope that you'd be interested in this story (and perhaps PCBmodE and product) but mainly to hear feedback. All the best, saar.

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Is the wiki down?
by John Cliff 17 Feb '14

17 Feb '14

Hi all, Is the wiki down? dont seem to be able to connect to it. Cheers John

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viewBox and preserveAspectRatio
by Tavmjong Bah 13 Feb '14

13 Feb '14

Hi, A heads-up... While mucking about the code I noticed that the same basic code to handle viewBox and preserveAspectRatio appeared in multiple files (8 times?) having originally been pasted directly or copied with some changes. Overtime the code was tweaked here and there. I have created a new base class to handle viewBox and preserveAspectRatio and modified sp-root, sp-symbol, sp-image, sp-pattern, and marker to use the new class, resulting in a reduction of over 400 lines of code (yeah!). In the process, I've fixed a number of issues with using percentage based x, y, width, and height values. Please let me know if you find any problems. Tav

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