August 2007 - Inkscape Devel - Inkscape Mailman

Compile error in line-geometry.cpp with struct assignment for gcc 3.3
by John Faith 10 Aug '07

10 Aug '07

Hello, When I try to build svn 15634 using gcc 3.3 (OS X 10.3), I get a compile error: line-geometry.cpp: In member function `virtual NR::Maybe<NR::Point> Box3D::Line::intersect(const Box3D::Line&)': line-geometry.cpp:57: error: parse error before `;' token I was able to build 0.45.1 in this same environment, so this error is relatively new. The error seems to be caused when something is set to NR::Nothing. This example causes the same error: namespace NR { struct Nothing {}; }; void function() { void* junk = NR::Nothing; //<---- parse error } I played with this a bit, and found that the problem is not related to the namespace nor to the fact that the struct has no members. Does this sound familiar to anyone, or can anyone recommend a way (search terms) to find out more about this? Thanks!, John

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Python scripting question
by Kent Tenney 09 Aug '07

09 Aug '07

Howdy, Can a Python extension script provide the following; - browse for and select a file - the text in the file becomes a text object in my drawing Thanks, Kent

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Mingw-gcc 4.2.1
by Bob Jamison 09 Aug '07

09 Aug '07

Hi, everyone, I just noticed that Danny Smith uploaded test versions of gcc-4.2.1 built for Mingw32. These are a bit more "official" than the builds that I uploaded, so anyone having trouble currently (like relocatability) might want to try these. https://sourceforge.net/project/showfiles.php?group_id=2435 Look for "GCC Version 4," and we are currently using the "setjump/longjump" exception model (sjlj), so you would want these: http://downloads.sourceforge.net/mingw/gcc-core-4.2.1-sjlj-1.tar.gz2 http://downloads.sourceforge.net/mingw/gcc-g%2B%2B-4.2.1-sjlj-1.tar.gz2 Hopefully Danny will soon let the Dwarf (dw) model be the default, but all of our libraries are built with sjlj, so if you use dw now, it won't link. bob

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updating filters
by Felipe Sanches 09 Aug '07

09 Aug '07

hi, Nicholas! for some reason, some controls doesnt update automatically when applied to imported images. But they update on other kinds of objects. See for example, feColorMatrix. Juca PS: colormatrix values should be stored for each of the possible types. It is not good to store all of them in a single variable. It would be much better if the user could adjust the value for one type, then change type and readjust value, and then change its mind again (maybe feeling that the previous type and value were better) and when he selects back the previous type he should see the respective old value still there.

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Scheme Scripting Console
by Glimmer Labs 08 Aug '07

08 Aug '07

We have developed a feature which allows Scheme Scripting from a console inside of Inkscape. We chose to implement a Scheme interpreter inside Inkscape because we felt higher-order programming and other functional paradigm ideas of Scheme would apply very nicely to a vector-based program such as Inkscape. The tar file included at the directory below contains a README with directions to aid in the process of installing the patch contained in the tar file. The README also has instructions on running the console. http://www.cs.grin.edu/~dangelod/scheme-patch.tar.gz Please let us know what you think of it. This patch was tested with revision 15458. If there is a better place to submit this patch since it is pretty large, let us know. Thanks, David D'Angelo and Soren Berg glimmer07@...400...

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Let's talk about text
by Ted Gould 08 Aug '07

08 Aug '07

Hey, I don't know how many people saw this, but I thought it might be of general interest as it seems text is always an issue. Apparently there was a "text summit" in Glasgow as a part of aKademy. A report from the KDE folks: http://dot.kde.org/1186422013/ Which sounds interesting, but I hope we'll never have to directly deal with "languages not yet in Unicode." And, I think that Pango will do most of it for us. One of the links that I found interesting was to Fontima -- which is looking to define a font manager and widgets for the free desktop. Dealing with all the naming nastyness we've discussed before. http://eyegene.ophthy.med.umich.edu/interview/fontima.php I'm not sure how real it is, but it might have some interesting ideas in it. --Ted

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Alt-mouse - an RFC
by Thomas Worthington 08 Aug '07

08 Aug '07

Okay, I've checked the source code out and had a quick look at it with an eye to doing something about the Alt-mouse issue on Linux. There are currently only 50 hardwired references to GDK_MOD1_MASK in the whole source tree (over 21 .ccp and .h files). Two options spring to mind: 1 Define a new global, ALT_KEY_MASK (say) and default it at run-time to the value of GDK_MOD1_MASK unless the user sets it to another value in their shortcut file, then do a simple search and replace for all occurances of GDK_MOD1_MASK. This would mean that the user's choice to treat something else as Alt (presumably Meta) would be global and not only for the mouse combinations. This would at least be consistant for that user and also for developers who would simply use the new global ALT_KEY_MASK everywhere they would previously have used GDK_MOD1_MASK. 2 Alternatively we could be more selective about the replacement so that only mouse combinations would be affected. This would mean that developers working on items not involved in the question of Alt+mouse need never bother about it but it would mean that a user who opted to change the Alt key would be faced with some functions where it was still Alt and others where it was now whatever they had picked instead. There's also the issue of the hint text. In the former case there is some justification for not altering it and just letting a user who's made the decision to change live with the fact that the hint text still says "Alt", but in the second case the functions modified would really have to be changed (and changed back if they undo the key mapping). At the moment I'm enjoying being able to easily use node sculpting using Meta-mouse and am very happy to continue on to impliment option 1 but obviously it affects more files which might make others unhappy. This is a list of the files GDK_MOD1_MASK appears in (and the number of occurances in each): ./src/dialogs/xml-tree.cpp:1 ./src/helper/window.cpp:1 ./src/ui/dialog/dialog.cpp:1 ./src/ui/view/edit-widget.cpp:1 ./src/box3d-context.cpp:1 ./src/gradient-context.cpp:2 ./src/flood-context.cpp:1 ./src/dropper-context.cpp:1 ./src/gradient-drag.cpp:3 ./src/connector-context.cpp:1 ./src/seltrans.cpp:3 ./src/event-context.cpp:1 ./src/select-context.cpp:8 ./src/rect-context.cpp:1 ./src/dyna-draw-context.cpp:3 ./src/object-edit.cpp:7 ./src/context-fns.cpp:1 ./src/nodepath.cpp:4 ./src/node-context.cpp:2 ./src/macros.h:4 ./src/modifier-fns.h:4 What does everyone think? This would shift the responsibility for how to cope with the mouse squarly onto the user's shoulders. S/he would have the option to stick with the "official" shortcuts and modify their WM or to consciously select a different keyboard mod value. Developers can then forget about the issue. Now the caveat: I'm not a C++ programmer, although I've been programming for 29 years so I'm not a newbie. Be that as it may, I might be totally misunderstanding how deeply this change would affect the project so more experienced heads need to tell me if I'm barking up the wrong tree before I start chopping it down. And on that mixed metaphor I shall conclude. Thanks, Thomas Worthington

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file saving broken?
by bulia byak 08 Aug '07

08 Aug '07

After the recent OCAL commit, I cannot save a newly created file: ** (inkscape:15918): WARNING **: Could not find the temp saving. ** (inkscape:15918): WARNING **: Error: Could not save file '/home/bb/aaa.svg' with VFS Please fix this ASAP, and please better test before you commit! -- bulia byak Inkscape. Draw Freely. http://www.inkscape.org

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Help with makefile troubles
by Johan Engelen 08 Aug '07

08 Aug '07

Hello 'scapers, I have been fiddling with a problem way too long now, I am hoping one of you can help. :-( I want to get a local copy of 2geom in the inkscape directory, and use that to build. This is now committed to the live-path-effects branch. It builds fine on windows, however I cannot get it to build on Linux. The 2geom directory is compiled (I see .o files) and the library is also created ('lib2geom.a'). But... for some reason, the linker cannot locate some 2geom symbols. For example I get the build error: /home/johan/inkscapelpe/src/./2geom/path.h:344: undefined reference to `Geom::Path::delete_range(__gnu_cxx::__normal_iterator<Geom::Curve**, std::vector<Geom::Curve*, std::allocator<Geom::Curve*> > >, __gnu_cxx::__normal_iterator<Geom::Curve**, std::vector<Geom::Curve*, std::allocator<Geom::Curve*> > >)' When I run: nm ./src/2geom/lib2geom.a -C -g --defined-only I do get : 00000150 T Geom::Path::delete_range(__gnu_cxx::__normal_iterator<Geom::Curve**, std::vector<Geom::Curve*, std::allocator<Geom::Curve*> > >, __gnu_cxx::__normal_iterator<Geom::Curve**, std::vector<Geom::Curve*, std::allocator<Geom::Curve*> > >) The link command = g++ -Wall -Wformat-security -W -Wpointer-arith -Wcast-align -Wsign-compare -Woverloaded-virtual -Wswitch -D_FORTIFY_SOURCE=2 -Wno-unused-parameter -g -O2 -o inkscape --export-dynamic main.o libinkpre.a 2geom/lib2geom.a application/libinkapp.a ui/dialog/libuidialog.a .... etcetera So it includes the lib with the symbol in it. Still it gives that error. Possible pointer to a solution: for some reason, 2geom is mentioned twice in /src/Makefile causing some warnings about overriding the old commands. I do not see why 2geom is put twice into this file. Could someone please have a look at building my branch on Linux? Thank you very very much, Johan

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Tweak Tool
by Josh Andler 08 Aug '07

08 Aug '07

Bulia, As always, there was silence before the storm. ;-) Great new tool! I have a couple Qs. 1) Do you have plans for pressure/tilt support? If not, would you be opposed to toggles like the calligraphy tool? I know that I would personally find it to be greatly useful to have that interaction. 2) Are there plans for any other modes currently? If not, is there opposition to others adding them? I'm just thinking along the lines of a couple of the tools AI has, such as the twirl one. And, also as always... once I have more than a quick demo session to go on, more praise will follow. :-) -Josh

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