March 2010 - Dillo-dev - lists.mailman3.com

patch: drawing image map areas

by Johannes.Hofmann＠gmx.de

On Sat, Mar 06, 2010 at 12:46:57AM +0000, corvid wrote: > This draws the shapes in image maps, which is quite nice when not > loading images. > > > There are two redrawing problems: > > If I try http://earthquake.usgs.gov/earthquakes/recenteqsww/ > a little bit of the map is visible at the bottom of the viewport > initially (geometry 850x630). The rectangles are visible, but not > the polygons. If I page down or switch to another desktop and back, > all is well. > > If I try http://www.sbrady.com/hotsource/html/imgmaps.html > because it has bigger rectangles, when I scroll line by line, > I get lines in my rectangle corresponding to the edge of the view. This should be fixed now. The only place where we currently use non-filled rectangles is bullet.cc and indeed I could reproduce the issue with nested <ul>s and drag scrolling. Cheers, Johannes PS: Feel free to commit your patch, we can resolve remaining issues in-tree.

March 11, 2010

Using the tab or other keyboard keys to set focus on web page links...

by rmarathe＠i-rode.com

Hi, I am trying to put in a patch to use the tab or other keyboard keys to set focus on web page links. I started implementing this based on Corvid's suggestion as mentioned under: 1. borrowing from the dw/findtext.cc iteration code. 2. checking when style->x_link != -1 or you're currently on an embedded form widget. I have implemented the first part but still needs test. I have a question while implementing the second part. Can you please tell me how to determine if we are on an embedded form widget currently. Can you please send me code snippets or guide me to implement this ? Thanks. thanks and regards, Rajesh Marathe.

March 11, 2010

patch: drawing image map areas

by Johannes.Hofmann＠gmx.de

On Sat, Mar 06, 2010 at 12:46:57AM +0000, corvid wrote: > This draws the shapes in image maps, which is quite nice when not > loading images. Nice! > > > There are two redrawing problems: > > If I try http://earthquake.usgs.gov/earthquakes/recenteqsww/ > a little bit of the map is visible at the bottom of the viewport > initially (geometry 850x630). The rectangles are visible, but not > the polygons. If I page down or switch to another desktop and back, > all is well. Not sure about this one yet. > > If I try http://www.sbrady.com/hotsource/html/imgmaps.html > because it has bigger rectangles, when I scroll line by line, > I get lines in my rectangle corresponding to the edge of the view. > No problem with circles or polygons. Ha, that seems to be a problem introduced by my attempt to fix coordinate overflows with huge borders. For borders we always use filled rectangles and for those the problem is invisible. I will fix that somehow. Cheers, Johannes

March 9, 2010

Regarding using the Tab/other keys to set focus on web links in Dillo

by rmarathe＠i-rode.com

Hi Liyong, I came to know from Corvid's email that you had faced this problem (using Tab or other keys to set focus on web links in Dillo) earlier. Now, I am facing the same problem. Can you please share a portion of your code that does this functionality or at least give me more detailed steps to achieve this ? This would be very helpful as I am planning to use this on my Embedded platform too. Thanks and regards, Rajesh Marathe.

March 9, 2010

cookie 32-bit time wrapping and possible gcc problem

by Johannes.Hofmann＠gmx.de

On Mon, Mar 08, 2010 at 10:20:05PM +0000, corvid wrote: > I wrote: > > Johannes wrote: > > > On Mon, Mar 08, 2010 at 06:33:12PM +0000, corvid wrote: > > > > Tried running my test/cookies program and got two failures > > > > from the 32-bit timestamp wrapping tests. > > > > > > > > Turned out that I had -O2 set. > > > > -O succeeds, and no optimization succeeds. > > > > If I insert a MSG("exptime+local_shift %ld\n", exptime + local_shift); > > > > after setting local_shift in Cookies_expires_attr(), it works even with -O2. > > > > > > > > This is with gcc-4.3.3. I'm going to get 4.4.3 and see what happens... > > > > Same behaviour with 4.4.3. > > Found out what's going on. > > Signed overflow is undefined, and -O2 gives -fstrict-overflow, > which assumes that overflow won't happen. good catch! > > So I will do something of some sort about this :) BTW. wikipedia states that generally arithmetic operations on time_t have no defined meaning, but you can use difftime() instead.

March 8, 2010

cookie 32-bit time wrapping and possible gcc problem

by corvid＠lavabit.com

I wrote: > Johannes wrote: > > On Mon, Mar 08, 2010 at 06:33:12PM +0000, corvid wrote: > > > Tried running my test/cookies program and got two failures > > > from the 32-bit timestamp wrapping tests. > > > > > > Turned out that I had -O2 set. > > > -O succeeds, and no optimization succeeds. > > > If I insert a MSG("exptime+local_shift %ld\n", exptime + local_shift); > > > after setting local_shift in Cookies_expires_attr(), it works even with -O2. > > > > > > This is with gcc-4.3.3. I'm going to get 4.4.3 and see what happens... > > Same behaviour with 4.4.3. Found out what's going on. Signed overflow is undefined, and -O2 gives -fstrict-overflow, which assumes that overflow won't happen. So I will do something of some sort about this :)

March 8, 2010

experiment feedback

by spell_gooder_now＠spellingbeewinnars.org

Thanks again Johannes Again I sorry if I am cluttering this list with my own issues.... Here is a bit more detail if interested. Like most of you I can code an hour or two in the evenings but I am pretty new to C/C++ and will be much slower then the rest of you. I starting working on this project four years ago but this time has been occupied by trying to plan out the project. I feel like I am so close to something amazing but I also feel that I am trying to fit a square peg into a round hole and I am running around in circles. I would like to be able to control and process data from about 100 different models of instruments. I am only working 3 hours a day, while my Autistic Son is in nursery school and looking after him full time otherwise. However I am still able to move about 10-15K worth of instrumentation through my basement per month. I have access to instruments and software, market myself well and have an interest in open source. I feel like I am in a great place to make a difference but I have so far failed to do so. I am afraid to code an entire App. Just the configuration alone would be difficult with so many instruments. I am thinking it might be better to assemble things on a case by case basis. All of these labs have such different needs and styles too, if there was a way they could also write part of the application, that would be best. I know people make hooks in their applications for embedding languages like Lua and Python but these languages will take too long for these busy people to learn, that's why I am looking at an HTML solution. So, what I can offer is 1-2 hours per day of less then amazing C/C++ or I can contribute financially or both. On the financial note, almost all the profit I am making at the moment is back out the door in the form of Autism therapy bills and debt repayment from a difficult couple of years. However my Son is getting better and when I can work a normal work day I should be able to contribute funds, perhaps $100-$300 a month. This is however not enough to employ a full time programmer and I can't fund years of CSS development it would have to be 2/3rds geared towards my project. Not sure if this is a good match for the project? Thanks for reading my long-long email-patrick > > * completing full CSS 2.1 support > * adding JavaScript > * developing your own framework based on that > > are all very ambitious projects on their own. > > Cheers, > Johannes > > _______________________________________________ > Dillo-dev mailing list > Dillo-dev(a)dillo.org > http://lists.auriga.wearlab.de/cgi-bin/mailman/listinfo/dillo-dev > >

March 8, 2010

cookie 32-bit time wrapping and possible gcc problem

by corvid＠lavabit.com

Johannes wrote: > On Mon, Mar 08, 2010 at 06:33:12PM +0000, corvid wrote: > > Tried running my test/cookies program and got two failures > > from the 32-bit timestamp wrapping tests. > > > > Turned out that I had -O2 set. > > -O succeeds, and no optimization succeeds. > > If I insert a MSG("exptime+local_shift %ld\n", exptime + local_shift); > > after setting local_shift in Cookies_expires_attr(), it works even with -O2. > > > > This is with gcc-4.3.3. I'm going to get 4.4.3 and see what happens... Same behaviour with 4.4.3. > Can you reproduce the issue with a small test program? If yes, we > could look at the generated code. *makes toy program* Haven't been able to get it to break.

March 8, 2010

experiment feedback

by Johannes.Hofmann＠gmx.de

Hi Patrick, On Mon, Mar 08, 2010 at 02:17:57PM -0500, Patrick wrote: > Hi Johannes > > Thanks very much for your feedback. I am sure that my business plan > will need tweaking but I am also really pretty confident about it. I > have spoken with many people working in labs about it and they are > really excited about open source. At the end of the day my own > business could save 10K a year if I just did not have to buy > software and if my project failed to make money but helped those > researching diseases and such, that really would not be a loss. It's a good start if you already have a customer. > > " estimate about 1.5 staff years for a pretty experienced programmer" > > Whoa! I had no idea there was that much work left to me done with > CSS. Would this much code change Dillo fundamentally? Are there many > features that would not be required most of the time, are there many > obscure features. Well, it depends on what you call obscure... There is the whole absolute positioning thing, then there is floats, background images and a lot of tiny details. Just browse through the CSS 2.1 spec at http://www.w3.org/TR/CSS2/ > > I guess it's just a philosophical issue but I am not attracted to > large-large projects, small is beautiful. 50K lines of code will > take me a long time to understand but it is within the realm of > possibilities. I don't think anyone understands all of webkit No need to explain this to me. I use and work on dillo for similar reasons :-) My point was just that * completing full CSS 2.1 support * adding JavaScript * developing your own framework based on that are all very ambitious projects on their own. Cheers, Johannes

March 8, 2010

cookie 32-bit time wrapping and possible gcc problem

by Johannes.Hofmann＠gmx.de

On Mon, Mar 08, 2010 at 06:33:12PM +0000, corvid wrote: > Tried running my test/cookies program and got two failures > from the 32-bit timestamp wrapping tests. > > Turned out that I had -O2 set. > -O succeeds, and no optimization succeeds. > If I insert a MSG("exptime+local_shift %ld\n", exptime + local_shift); > after setting local_shift in Cookies_expires_attr(), it works even with -O2. > > This is with gcc-4.3.3. I'm going to get 4.4.3 and see what happens... Can you reproduce the issue with a small test program? If yes, we could look at the generated code.

March 8, 2010