- Inkscape Devel - Inkscape Mailman

Re: font metrics
by MenTaLguY 27 May '04

27 May '04

On Tue, 2004-05-25 at 02:54, fred wrote: > the fact that the work needed is still a bit blurry > probably doesn't motivate people; also, i'm less and > less sure of the first step you put in the roadmap > that consists of doing a pango libnrtype backend to > eat libnrtype from the inside; libnrtype main use is > to get glyph outlines and advances, something i cannot > get pango to spit. on the other hand, > nr-type-directory and nr-typeface are almost 1/1 > mappings to PangoFontMap and PangoFont That's about right; the plan is: 1. C++ify libnrtype to make it easier to refactor 2. introduce an NRTypeFace subclass that wraps PangoFont (and hides any platform/pango-backend-specific details) 3. remove the other NRTypeFace subclasses 4. jettison NRTypeDirectory and NRTypeFace, using Pango directly (moving any facilities not directly provided by Pango into a separate set of C++ classes) To get glyph outlines and advances in Pango, you need to use backend-specific functions to get a "font handle" native to the underlying API (e.g. Freetype or Win32). IIRC, PangoGlyph in turn is just an integer containing the native font glyph index. At that point you can use the "native" API to get what you want. Of course, SPTypeset, SPText etc. should not have to care about the native API; the intent is that the NRTypeFace subclass in #2 and later the supplemental classes in #4 will provide an API hiding those details. Part of the reason for the gradual approach is that there are a lot of (potentially important) minor tweaks in libnrtype (e.g. the special unicode mapping Lauris added for "symbol fonts" for Lilypond-generated SVG); we want to understand all the code we're replacing so we won't have regrets later. Another reason is so we can easily evaluate Pango without causing the breakage a wholesale replacement would. For example, I think the freetype backend should work on Win32 (i.e. it should pick up the Win32-installed fonts), but we need to make sure there aren't any gotchas. (an ideal goal is to get the same code working on Win32 and Unix, but we have yet to see if that is possible..) If at that point all the changes are "contained" by the libnrtype API, if it turns out to work badly, we can switch to using the win32 pango backend on Windows without disrupting the rest of the code. > isn't such info already contained in a glyph string? > maybe diacritical marks have a special treatment (0 > width, x_offset and y_offset?) in pango, i dont seem > to locate rasterization-specific stuff for arabic; > once the text has passed through the shaper, the > glyphstring doesn't change. Yes. I think I misunderstood the stages of Pango before. Doesn't the shaper output include the advance, then? -mental

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RE: [Inkscape-devel] Re: importing bitmaps as patterns
by bulia byak 26 May '04

26 May '04

I think all you say is correct, but the default is not the option which produces the smallest code; the default is simply the option which is expected and liked by the majority. Moreover, when you count that majority, novices and casual users have a larger weight because this is who will mostly use the defaults. This is why I asked about the option here in the list. Your desire to get clean SVG is understandable (even though I don't think a pattern fill is in any way "unclean"), but I have a suspicion that the ability to reshape a bitmap will be welcomed by more people (and the list response so far confirms this). Anyway, remember that you (and anyone else who wants to get <image>) will be able to set the corresponding option once and forget about the issue. >That isn't to say that the new functionality isn't good - implementing any >new svg feature is a good thing. Just that doing simple things should >produce clean and simple SVG. I disagree. Doing clean and simple things must produce clean, simple, and predictable _behavior_. A rect is a much more familiar, clean, and simple thing to a user than an <image> which is frighteningly inflexible. >[0] As an aside: has any thought been given to supporting JNG? It is a >variant of PNG supporting jpeg compressed image data with a PNG alpha >channel, and is specified as part of MNG: http://www.libmng.com/pub/mng/ We now use gdkpixbuf for bitmap import, so if it supports it, we do too. _________________________________________________________________ MSN Premium helps eliminate e-mail viruses. Get 2 months FREE* http://join.msn.com/?pgmarket=en-ca&page=byoa/prem&xAPID=1994&DI=1034&SU=ht…

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importing bitmaps as patterns
by bulia byak 26 May '04

26 May '04

I got an idea today which I went on to quickly implement, so you can test it in CVS already. Now when you import a bitmap into your drawing, it appears not as an <image> element but as a <rect> with pattern fill, the pattern being the image you imported. It looks the same, but the important difference is that you can easily "mask" the image by changing the shape of the rect (round corners, or convert to path and node-edit, or apply some booleans etc. just as you would with any rectangle). I think this makes it a lot more useful and I would even suggest making this a default (as it is now in CVS), although an option to create <image> as before still remains. There are a bunch of bugs related to pattern fills currently, but I hope to clear them sooner or later. For now, set Transforms to Preserve in the preferences so that rects behave as expected when transformed. I'd like to hear opinions on the usefulness and possible default-ness of this trick. It does not remove the necessity to have a pattern fill tool or dialog, but I think it lets you do without in the majority of situations. You can even apply the same pattern fill to other shapes by doing Copy/Paste Style (the imported rect ends up grouped as of now, so ungroup it first). _________________________________________________________________ MSN Premium helps eliminate e-mail viruses. Get 2 months FREE* http://join.msn.com/?pgmarket=en-ca&page=byoa/prem&xAPID=1994&DI=1034&SU=ht…

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Re: [Inkscape-devel] importing bitmaps as patterns
by bulia byak 26 May '04

26 May '04

>Sounds good, though later on, it shouldn't be a fill, but actually a >mask. >I admit not to have tried the cvs, but I wonder how scaling of the image >would work... if I just change the shape, I'll crop it. Is there a easy >way to scale the pattern with the object? In InDesign (well, that is >masks, but anyway) wou press ctrl, so scale frame and content. Is there >a keybinding alike for that? Cause frankly, scaling of images is IMHO >even more important than clipping. By default fill is scaled (except in rects and paths for Optimize mode, but it's a bug which I'll fix). I will add three toggle buttons to the top panel that will turn on/off transformations of stroke width, pattern fills, and gradients with the object so you can easily control this. _________________________________________________________________ Add photos to your messages with MSN Premium. Get 2 months FREE* http://join.msn.com/?pgmarket=en-ca&page=byoa/prem&xAPID=1994&DI=1034&SU=ht…

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current snapshot: unable to import JPEGs
by Artemio 26 May '04

26 May '04

Hello! With yesterday's snapshot, if I import a JPEG (which I used to successfully import with previous versions) I get "Failed to load image xxx.jpg". PNG works fine. Artemio. -- Artemio.net ::: world's official Artemio resource ::: http://artemio.net [local time 17:53:20 (GMT +3) 26 May 2004] [system uptime 2 hr 07 min]

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RE: [Inkscape-devel] re: bitmap as patterns
by bulia byak 26 May '04

26 May '04

>Does it mean this could also be a beginning state to add clip and mask on >the >shapes and path, such as described at >http://www.w3.org/TR/SVG11/masking.html ? No, masks are an entirely different thing which we need to support. Here you just change a shape which has a bitmap pattern fill, though this may give results similar to masking for the bitmap. _________________________________________________________________ Watch LIVE baseball games on your computer with MLB.TV, included with MSN Premium! http://join.msn.click-url.com/go/onm00200439ave/direct/01/

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Richard M. Stallman On Tuesday, June 8 will give a speech at Portland State University
by Bryce Harrington 25 May '04

25 May '04

---------- Forwarded message ---------- Date: Tue, 25 May 2004 14:34:08 -0700 From: Christine Moore <cem@...367...> Subject: Richard M. Stallman On Tuesday, June 8 will give a speech at Portland State University On Tuesday, June 8, Richard M. Stallman, founder of the GNU Project and Free Software Foundation, will give a speech in Lincoln Performance Hall at Portland State University: "The Free Software Movement and the GNU/Linux Operating System." He will discuss the purpose, goals, philosophy, methods, status, and future prospects of the GNU operating system, which in combination with the kernel Linux is now used by an estimated 17 to 20 million users world wide. There will be a question-and-answer session afterwards. The event begins at 7:00 PM, and will last approximately three hours. Lincoln Hall is located on the Portland State University Campus in Portland at the corner of Broadway and Market Streets. Feel free to let your friends and acquaintances know about this. Please do not RSVP to this. ------- End of Blind-Carbon-Copy

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Fw: Re: [Passepartout] PPT + Inkscape
by Bluefuture 25 May '04

25 May '04

--------- Original Message -------- Da: passepartout@...273... To: \"passepartout@...273...\" <passepartout@...273...> Cc: \"Dylan VanHerpen\" <dvanherpen@...210...> Oggetto: Re: [Passepartout] PPT + Inkscape Data: 23/05/04 22:32 Dylan VanHerpen <dvanherpen@...210...> writes: > Fredrik, Hey, I\'m just half the development team :-) > I\'m impressed with the functionality already present in Passepartout, > and anxiously waiting for the next update. Like others, I\'d like SVG > support, truetype font support and better type handling. TrueType support is being worked on. Type handling? > I\'ve also been using Inkscape, which already is very useable for > single page layouts (especially when the Pango conversion is > completed with the next release). It seems to me that Inkscape and > PPT complement each other rather well. > What would you think about combining the strengths of both efforts, and > developing PPT as a layout module for Inkscape? Inkscape seems to be > further along in terms of font handling (Pango), vector graphics and > object layering (with alpha-blending). Combining the two would make for > a kick-ass DTP solution with a great universal document format. Collaboration with Inkscape has been suggested before and it certainly makes a lot of sense, though I don\'t think merging the programs is a good idea. Inkscape seems to have a very nice version of the gnome canvas, more capable than the vanilla version, which I\'m not even sure has a maintainer. I don\'t know if Pango has much to do with the font support in Inkscape. Inkscape can convert fonts to Beziér curves. I don\'t think it could do that without reading the font files. We\'d like to know how it manages to find out what font files correspond to which fonts in X. We haven\'t been in touch with any of the Inkscape devs though. -- Fredrik Arnerup <e97_far@...270...> http://www.stacken.kth.se/~foo/

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RE: [Inkscape-devel] error with compiling current snapshot :-(
by bulia byak 25 May '04

25 May '04

I get the same error. Fred, please fix as it's in your file. >libinkpre.a(sp-typeset-utils.o)(.text+0x2862): In function >`pango_text_chunker::pango_text_chunker[not-in-charge](text_with_info*, >char*, double, int)': >/home/artemio/Documents/build/inkscape-20040524/src/sp-typeset-utils.cpp:857: >undefined reference to `pango_ft2_font_map_new' >libinkpre.a(sp-typeset-utils.o)(.text+0x2903): In function >`pango_text_chunker::pango_text_chunker[in-charge](text_with_info*, char*, >double, int)': >/home/artemio/Documents/build/inkscape-20040524/src/sp-typeset-utils.cpp:857: >undefined reference to `pango_ft2_font_map_new' >libinkpre.a(sp-typeset-utils.o)(.text+0x3d71): In function >`pango_text_chunker::SetTextWithAttrs(text_with_info*, int)': >/home/artemio/Documents/build/inkscape-20040524/src/sp-typeset-utils.cpp:1200: >undefined reference to `pango_ft2_font_map_create_context' _________________________________________________________________ STOP MORE SPAM with the MSN Premium and get 2 months FREE* http://join.msn.com/?pgmarket=en-ca&page=byoa/prem&xAPID=1994&DI=1034&SU=ht…

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error with compiling current snapshot :-(
by Artemio 25 May '04

25 May '04

g++ -Wall -W -Wpointer-arith -Wcast-align -Wsign-compare -Woverloaded-virtual -Wswitch -Wno-unused-parameter -g -O2 -o inkscape --export-dynamic main.o -Wl,--export-dynamic libinkpre.a dialogs/libspdialogs.a xml/libspxml.a svg/libspsvg.a widgets/libspwidgets.a display/libspdisplay.a helper/libspchelp.a libnrtype/libnrtype.a libnr/libnr.a livarot/libvarot.a extension/libextension.a extension/implementation/libimplementation.a extension/internal/libinternal.a inkjar/libinkjar.a libinkpost.a /usr/lib/libxml2.so -lpthread /usr/lib/libgtkmm-2.0.so /usr/lib/libgdkmm-2.0.so /usr/lib/libatkmm-1.0.so /usr/lib/libgtk-x11-2.0.so /usr/lib/libpangomm-1.0.so /usr/lib/libglibmm-2.0.so /usr/lib/libsigc-1.2.so /usr/lib/libgdk-x11-2.0.so /usr/lib/libatk-1.0.so /usr/lib/libgdk_pixbuf-2.0.so -lm /usr/lib/libpangoxft-1.0.so /usr/lib/libpangox-1.0.so /usr/lib/libpango-1.0.so /usr/lib/libgobject-2.0.so /usr/lib/libgmodule-2.0.so -ldl /usr/lib/libglib-2.0.so -lpng /usr/lib/libpopt.so -L/usr/X11R6/lib -lXft -lX11 -lXrender /usr/lib/libfontconfig.so /usr/lib/libexpat.so /usr/lib/libfreetype.so -lz libinkpre.a(sp-typeset-utils.o)(.text+0x2862): In function `pango_text_chunker::pango_text_chunker[not-in-charge](text_with_info*, char*, double, int)': /home/artemio/Documents/build/inkscape-20040524/src/sp-typeset-utils.cpp:857: undefined reference to `pango_ft2_font_map_new' libinkpre.a(sp-typeset-utils.o)(.text+0x2903): In function `pango_text_chunker::pango_text_chunker[in-charge](text_with_info*, char*, double, int)': /home/artemio/Documents/build/inkscape-20040524/src/sp-typeset-utils.cpp:857: undefined reference to `pango_ft2_font_map_new' libinkpre.a(sp-typeset-utils.o)(.text+0x3d71): In function `pango_text_chunker::SetTextWithAttrs(text_with_info*, int)': /home/artemio/Documents/build/inkscape-20040524/src/sp-typeset-utils.cpp:1200: undefined reference to `pango_ft2_font_map_create_context' collect2: ld returned 1 exit status make[2]: *** [inkscape] Error 1 make[2]: Leaving directory `/home/artemio/Documents/build/inkscape-20040524/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/artemio/Documents/build/inkscape-20040524' make: *** [all] Error 2 -- Artemio.net ::: world's official Artemio resource ::: http://artemio.net [local time 21:23:55 (GMT +3) 25 May 2004] [system uptime 1 hr 32 min]

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