July 2008 - Inkscape Devel - Inkscape Mailman

Bug in node tool?
by john cliff 23 Jul '08

23 Jul '08

Hi Guys, spotted this late last night and didnt get a chance to file a bug on it, writing this note so I dont forget completely. Was playing with the node tool and found that there seems to be an indexing error (looks like an off by one type of thing) where whenever you do click to add nodes or try to drag the curve it does it to the wrong line segment. so if you have A-----B-----C and double click between A&B you get a node between B&C likewise if you try to drag to reshape it moves BC instead of AB. Cheers John

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win32 devs - be mindful of <string.h>
by Bob Jamison 23 Jul '08

23 Jul '08

Hi all. I just wanted to remind win32 developers that when they use the C lib string functions in <string.h>, they should take care to #include <string.h>, even if their code will compile without it. Apparently mingw's runtime .h files are configured a little differently, and other includes (stdio? stdlib?) pick up the string.h definitions. Without that #include, your code that uses string functions might compile, but when you commit, it will break the build for everyone else. I know, because I have been guilty of this more than once myself! :) IMHO, even if one feels confident that their includes are handled by other includes, in situations like this it is best to be explicit, safe, and portable. bob

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Tabel/XInput
by Alexander Roalter 23 Jul '08

23 Jul '08

I was redirected to this list, my problem ist the following: When using the Tablet (Wacom Graphire 4, USB) on my OpenSUSE 11, with the selector tool (F1) pressing on some object, the object is not selected. If I use the mouse for this, the object is selected. If I switch the Tablet's mode from Screen to Disabled in the XInput properties, I can select the object just as with the mouse, but I don't get the pressure-sensitivity. If I patch inkscape in order to produce output in sp_select_context_root_handler and sp_select_context_item_handler and put a printf at case GDK_BUTTON_PRESS, GDK_ENTER_NOTIFY, GDK_LEAVE_NOTIFY on select_context_item_handler as well as GDK_BUTTON_PRESS and GDK_BUTTON_RELEASE at select_context_root (the latter two I'll be naming GDK_BUTTON_PRESS/RELEASE____root from now on, I get the following behavior: if I draw a square with the rectangle tool and switch to select (F1), I can move the mouse over the rectangle and I get GDK_ENTER_NOTIFY If I move the mouse out of the rectangle, I get GDK_LEAVE_NOTIFY If I press somewhere (outside of the rectanlge), I get GDK_BUTTON_PRESS____root, and when I release, I get GDK_BUTTON_RELEASE____root. This is also valid for the tablet. If I press somewhere *in* the rectangle, with the mouse I get GDK_LEAVE_NOTIFY GDK_ENTER_NOTIFY GDK_BUTTON_PRESS and if I release, I get GDK_BUTTON_RELEASE___root GDK_BUTTON_RELEASE___root (that's right, I get it twice), and the rectangle is selected. If I do the same with the tablet, I get GDK_LEAVE_NOTIFY GDK_BUTTON_PRESS____root and upon release GDK_BUTTON_RELEASE____root GDK_ENTER_NOTIFY and nothing is selected at all. Maybe someone with a bit more insight could help me out here. It might have to do something with GDK and/or its implementation of XInput, but this would not explain the different behavior, I mean pressing outside of the rectangle generates PRESS and RELEASE as expected, but if there's an object under it, why is there a leave notify *not* followed by a enter notify just as it is the case with the mouse? -- cheers, Alex

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Bevel LPE (and others) discussion
by Pajarico 23 Jul '08

23 Jul '08

Hi, I'm working on a blueprint for adding bevel to objects. I'm still doing the mockups and need some input (I will post them shortly). So far the mockups will show some examples of the intended result. I haven't done the UI yet because I'm not sure on what features people need. There are some ideas on the blueprint page: https://blueprints.launchpad.net/inkscape/+spec/bevel-lpe What i suggest is that the color of the bevel to be independent of the objects color, so the bevel color should be editable on the LPE dialog. I'm not so sure about the stroke configuration. The above leads me to the following suggestion. I'm planning on doing (on the long run) blueprints for LPEs for shadow, emboss and extrusion, and a widget that let's you see and edit a color (for general using on those LPEs and on future ones) could be useful. What do you think? The point is that all named LPEs have a lot in common in the way the should work: * Bevel LPE: needs color selector for stroke/fill of the bevel and light needs adjusting the position of light * Shadow LPE: needs color selector for shadow needs adjusting the position of shadow * Emboss LPE: <none?> needs adjusting thedirection of emboss * Extrusion LPE: needs color selector for stroke/fill of the extrusion and light needs adjusting the position the extrude and light Doubts, suggestions, ideas...: 1- Is it a good idea to set stroke&fill independently from the objects attributes? (I find this useful but want your opinions about coding and usability). 2- What are your thoughts about creating a color selector widget? Just a swatch showing a color that jumps to the Fill&Stroke dialog when clicked. Would it be any good to have for these LPEs and future use? or is better to use the current one? but how? The LPE settings dialog should show this information somehow and the problem is that using the current dialog like that won't make clear what color are you setting exactly. 3- The selection of direction and position has similarities between LPEs and maybe some code could be shared. Or use a widget like the Gimp is using, but I would prefer on-canvas editing. 4- The color of the light should be added to the color of the objects, so the final aspect of the object depends on both. CorelDRAW X3 does this: http://www.youtube.com/watch?v=OzlaE4IJzr8 (@2:10) 5- Should rounded corners be faceted or not (with an option for the number of facets)? 6- CorelDRAW does bevel with soft edges, but this can get things complicated as we would need blur and a clipping path. I think that's everything for now. Regards. Pablo Trabajos.

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Re: [Inkscape-devel] [Inkscape-user] tablet stuff
by Aaron Spike 23 Jul '08

23 Jul '08

This issue looks like it would be better suited to the devel list and perhaps the bug tracker. Aaron Spike Alexander Roalter wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Alexander Roalter wrote: > | Since upgrading to OpenSUSE 11, I got the following problem with > | inkscape, both 0.46 and SVN: > | > | If I set the extended input preferences of the Stylus to 'Disabled', I > | can use the pen as a mouse, draw etc. and move things around, but I > | don't get any pressure sensibility. > | > | It I set the extended input preferences to 'Screen' or 'Window' > | (preferrably to 'Screen'), I get pressure sensibility, but I cannot > | select any object by simply clicking on it. I have to tap multiple times > | on it in order for it to have the normal handles appear, and only then I > | can move the object around. If I tap too often, I get the node > | selection, which isn't what I want (at that moment). > | > | Any Ideas on why? Is this something the X input does differently when > | XInput is set to screen so Inkscape does not register a press (or > | doesn't register it in the right way?) or is the code in inkscape for > | disabled and screen mode that much different so that selecting with > | screen mode won't work as expected? > | > Since nobody seems to care, I took some investigation and found out the > following: > > If I patch inkscape in order to produce output in > sp_select_context_root_handler and sp_select_context_item_handler and > put a printf at case GDK_BUTTON_PRESS, GDK_ENTER_NOTIFY, > GDK_LEAVE_NOTIFY on select_context_item_handler as well as > GDK_BUTTON_PRESS and GDK_BUTTON_RELEASE at select_context_root (the > latter two I'll be naming GDK_BUTTON_PRESS/RELEASE____root from now on, > I get the following behavior: > > > if I draw a square with the rectangle tool and switch to select (F1), I > can move the mouse over the rectangle and I get GDK_ENTER_NOTIFY > If I move the mouse out of the rectangle, I get GDK_LEAVE_NOTIFY > > If I press somewhere (outside of the rectanlge), I get > GDK_BUTTON_PRESS____root, and when I release, I get > GDK_BUTTON_RELEASE____root. This is also valid for the tablet. > > If I press somewhere *in* the rectangle, with the mouse I get > GDK_LEAVE_NOTIFY > GDK_ENTER_NOTIFY > GDK_BUTTON_PRESS > > and if I release, I get > GDK_BUTTON_RELEASE___root > GDK_BUTTON_RELEASE___root (that's right, I get it twice), > and the rectangle is selected. > > > If I do the same with the tablet, I get > GDK_LEAVE_NOTIFY > GDK_BUTTON_PRESS____root > > and upon release > GDK_BUTTON_RELEASE____root > GDK_ENTER_NOTIFY > > and nothing is selected at all. > > Maybe someone with a bit more insight could help me out here. It might > have to do something with GDK and/or its implementation of XInput, but > this would not explain the different behavior, I mean pressing outside > of the rectangle generates PRESS and RELEASE as expected, but if there's > an object under it, why is there a leave notify *not* followed by a > enter notify just as it is the case with the mouse? > > - -- > Cheers, > Alex > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v2.0.9 (GNU/Linux) > Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org > > iEYEARECAAYFAkiGaI0ACgkQ1J0MF2u394ympQCeMy1jitHlZQx3uu/IZQgHjoy6 > qjEAoLsbeCMBCpWCEbtDFEWQUD4/9G9u > =X0LM > -----END PGP SIGNATURE----- > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win great prizes > Grand prize is a trip for two to an Open Source event anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > Inkscape-user mailing list > Inkscape-user(a)lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/inkscape-user >

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Misc questions (dropdown menus, retrieving path info from files, LPE)
by Maximilian Albert 22 Jul '08

22 Jul '08

Hi all, I started working in the direction of Valerie's proposal for a redesigned pen/pencil toolbar (see http://wiki.inkscape.org/wiki/index.php/Vector-brushes), and I have a few quick questions: 1) How can I add images/paths to dropdown menus, e.g., to illustrate the shape that is going to be applied as a PatternAlongPath LPE? 2) I'd like to save the various possible shapes for dropdown menu #6 (cf. the image in the blueprint) in a separate file and read them during runtime rather than to hard-code them in advance. How can I access their path information from my code so that they can be applied as a PatternAlongPath? 3) For the LPE experts (Johan in particular :-) ): Valerie suggests that the width of the shape can be controlled via two spinbuttons. When I apply a given shape to a path (using PatternAlongPath), does the width of the resulting LPE-item depend on the length of the path or is it independent of this length (i.e., does the resulting item become wider when the path is longer and thus the pattern is "stretched" more)? Thanks in advance, Max -- GMX startet ShortView.de. Hier findest Du Leute mit Deinen Interessen! Jetzt dabei sein: http://www.shortview.de/?mc=sv_ext_mf@...1921...

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LPE "visibility": request for icon and name
by unknown＠example.com 21 Jul '08

21 Jul '08

Hi all, I just added an extra column in the LPE stack dialog. It shows whether an LPE is "visible" or not. (Corresponds to the "Is visible" checkbox in the parameters of an LPE) Have a look if it is not clear (just apply an LPE to a path and you'll see the eye icon next to the effect in the effect list). I'd like to make a request for a better name than "visibility". It enables/disables the effect, instead of changing whether the path is visible or not. So perhaps it is better to change the naming to something like "active/inactive". In that case it is also better to change the icon's appearance to something other than an eye. Maybe a set of 2 gears (with a cross through them if deactivated). Thanks! Johan

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new warnings
by bulia byak 20 Jul '08

20 Jul '08

I'm flooded by a stream of warnings like ** (inkscape:27965): WARNING **: Event latency reached 3.290566 sec What am I supposed to do with them? -- bulia byak Inkscape. Draw Freely. http://www.inkscape.org

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NEW: LPE Boolops
by unknown＠example.com 20 Jul '08

20 Jul '08

Hi all, I just added LPE Boolops to SVN. Have fun with it. What would be very helpful is for you to test it and try to break it (not so hard at the moment). If you have a problem case that fails, please save the SVG and add it to the launchpad bugtracker. Please give the bugreport the "livepatheffects" tag. Because I am not sure who of 2geom development checks the bugtracker (I don't for example), please also send a mail to lib2geom-devel(a)lists.sourceforge.net with a link to the launchpad bug report. Thanks!!! Johan

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animation approaches for Inkscape...
by Paulo Silva 20 Jul '08

20 Jul '08

hi! i posted in the Inkscape forum my first approaches about vectorial animation with swftools swfc, and how i am interested to help on a python-based converter between animated-svg and swfc formats http://www.inkscapeforum.com/viewtopic.php?f=28&t=819&p=6380#p6380 do someone know where from can i get samples of simple svg animations, and where can i test them?

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