[L2Ork-dev] Hello, and a rough plan on how to port K12 mode for GSoC

Sat Mar 30 11:43:19 EDT 2019

On Sat, Mar 30, 2019 at 4:19 AM Coniine Dieu <coniinedieu at gmail.com> wrote:
>
> Just made a traumatizingly primitive prototype for K12 mode. To try it out:
> 1. copy the whole l2ork_addons/K12 folder to purr-data-installation-folder/extra.
> 2. back up these files from your purr-data-installation-folder/bin, and replace them with the files in https://tinyurl.com/k12-proto-1 :
>   - pd_canvas.html
>   - pd_canvas.js
>   - pdgui.js
>
> All the changes can be found at https://git.purrdata.net/nerrons/purr-data/merge_requests/1/diffs . Basically I added a "position: fixed; height: 100%" div in pd_canvas.html and added horizontal offsets in functions that needs the current cursor position, to counter the bias introduced by the 70px width of the k12 frame. Some bugs: when clicking the button on the k12 frame, the whole canvas gets pushed to the right; if press ESC when placing the k12 abstraction, the border does not change; etc. But anyways, I hope this prototype will add value to the proposal and meanwhile I'm going to continue working on that.

Excellent! I'll have a look later this evening.

-Jonathan

>
> Thanks
> Shaoqian
>
> On Fri, Mar 29, 2019 at 9:45 PM Jonathan Wilkes <jon.w.wilkes at gmail.com> wrote:
>>
>> On Fri, Mar 29, 2019 at 6:17 AM Coniine Dieu <coniinedieu at gmail.com> wrote:
>> >
>> > Tried converting PNG to SVG and the result is surprisingly nice.
>> >
>> > Recipe:
>> > 1. Go to http://waifu2x.udp.jp, upscale.
>> > 2. Open the upscaled PNG. Trace Bitmap in Inkscape with "Color" mode and "Smooth" turned off. Try with different numbers of scans.
>> > 3. Save as "Optimized SVG".
>> >
>> > When using less numbers of scans, the file is small (down to 15 KB), and the result has a cute cartoon/crayon feel in it. Thus using SVG is definitely a viable option. Here's a Google Drive link to the files I've tested: https://tinyurl.com/png-svg-demo
>>
>> Ok, looks like that is definitely an option then.
>>
>> >
>> > However I'm not sure how [draw image] works. I tried having [struct svg-test float x float y], and then [draw image path-to-my.svg]. When I create [svg-test], it becomes a tiny transparent object that apparently doesn't display the SVG. I wonder what am I doing wrong here.
>>
>> Hm, not sure. There may be a bug with that object. I'll investigate later.
>>
>> -Jonathan
>>
>> >
>> > On Thu, Mar 28, 2019 at 9:59 AM Jonathan Wilkes <jon.w.wilkes at gmail.com> wrote:
>> >>
>> >> On Wed, Mar 27, 2019 at 9:33 PM Coniine Dieu <coniinedieu at gmail.com> wrote:
>> >> >
>> >> > Hi Jonathan,
>> >> >
>> >> > Currently as we are using PNG files for k12 abstractions, we use [image] to load it. However I'm not sure how to do the same for SVG files since it seems that both [image] and [ggee/image] do not support it. I am wondering, if we are using SVG files for k12 abstractions, does that mean we have to write new objects that loads SVG files? Or are there other ways to do this?
>> >>
>> >> [draw image] and [ggee/image] both use the same interface for loading
>> >> images in the GUI.
>> >> And [draw image] supports SVG so it shouldn't be difficult to change
>> >> [ggee/image] to support
>> >> them, too.
>> >>
>> >> But this is something that can be done incrementally. For example,
>> >> getting the PNGs to work
>> >> first, then testing by changing one to an SVG.
>> >>
>> >> -Jonathan
>> >>
>> >> >
>> >> > Thanks,
>> >> > Shaoqian
>> >> >
>> >> > On Tue, Mar 26, 2019 at 5:55 AM Jonathan Wilkes <jon.w.wilkes at gmail.com> wrote:
>> >> >>
>> >> >> On Mon, Mar 25, 2019 at 1:54 PM Coniine Dieu <coniinedieu at gmail.com> wrote:
>> >> >> >
>> >> >> > Hi Jonathan,
>> >> >> >
>> >> >> > Thanks for the quick response.
>> >> >> >
>> >> >> > -- We don't need anything fancy for the tooltips so simple CSS should suffice.
>> >> >>
>> >> >> At least for SVG elements, the <title> tag is even easier-- the
>> >> >> browser automatically
>> >> >> hoists the inner text into a tooltip as well as handling the tooltip's
>> >> >> appearance
>> >> >> and placement.
>> >> >>
>> >> >> On the other hand a CSS tooltip gives us automatic text resizing when zooming,
>> >> >> which is probably preferable. Just make sure to do some tests with the
>> >> >> corners of
>> >> >> the window to ensure the tip shows up properly.
>> >> >>
>> >> >> >
>> >> >> > -- Yes, I just tested: ggee/image supports relative path and @pd_extra works
>> >> >> > indeed if I put the abstractions into the installation folder. I wanted to
>> >> >> > create an independent patch so I didn't really check. My bad.
>> >> >>
>> >> >> No problem.
>> >> >>
>> >> >> >
>> >> >> > -- I think we should keep the menus for trivial but necessary entries (like
>> >> >> > recently opened files) so we don't clutter the k12 frame. But of course, some of
>> >> >> > them can migrate, for the sake of touchscreen too. That leads to--
>> >> >> >
>> >> >> > -- Yes, touchscreen compatibility can be a good objective for the third month. I
>> >> >> > wonder if pd has any existing code in charge of touchscreen I can study or refer
>> >> >> > to.
>> >> >>
>> >> >> I think what I'm going to do is add touchstart, touchcancel, touchend,
>> >> >> and touchmove
>> >> >> listeners for the document and then just generate the relevant mouse-related
>> >> >> events from that. That should at least bring touch up to date with
>> >> >> mouse interaction.
>> >> >> That means it will leverage the same codebase so there's no need for separate
>> >> >> code paths aside from the one I mentioned above.
>> >> >>
>> >> >> (Ideally I'd like to use the pointer events API for both touch and
>> >> >> mouse but that
>> >> >> would require an upgrade of nw.js.)
>> >> >>
>> >> >> >
>> >> >> > -- I'll try to convert them into svg and see what happens. If anything is too
>> >> >> > complex we can always simplify a bit.
>> >> >>
>> >> >> Sounds good. If you want you could do a single image as a test to make sure
>> >> >> the underlying framework supports it.
>> >> >>
>> >> >> >
>> >> >> > I'm excited to know that my plans are feasible. I'll try to finish the first
>> >> >> > draft within a few days. Are there any additional information you'd like to see
>> >> >> > in the proposal?
>> >> >>
>> >> >> It looks good to me so far. And of course, feel free to keep posting
>> >> >> to the list
>> >> >> here if you have any more questions or run into any issues.
>> >> >>
>> >> >> Best,
>> >> >> Jonathan
>> >> >>
>> >> >> >
>> >> >> > Best,
>> >> >> > Shaoqian
>> >> >> > _______________________________________________
>> >> >> > L2Ork-dev mailing list
>> >> >> > L2Ork-dev at disis.music.vt.edu
>> >> >> > https://disis.music.vt.edu/listinfo/l2ork-dev
>> >> >> _______________________________________________
>> >> >> L2Ork-dev mailing list
>> >> >> L2Ork-dev at disis.music.vt.edu
>> >> >> https://disis.music.vt.edu/listinfo/l2ork-dev
>> >> >
>> >> > _______________________________________________
>> >> > L2Ork-dev mailing list
>> >> > L2Ork-dev at disis.music.vt.edu
>> >> > https://disis.music.vt.edu/listinfo/l2ork-dev
>> >> _______________________________________________
>> >> L2Ork-dev mailing list
>> >> L2Ork-dev at disis.music.vt.edu
>> >> https://disis.music.vt.edu/listinfo/l2ork-dev
>> >
>> > _______________________________________________
>> > L2Ork-dev mailing list
>> > L2Ork-dev at disis.music.vt.edu
>> > https://disis.music.vt.edu/listinfo/l2ork-dev
>> _______________________________________________
>> L2Ork-dev mailing list
>> L2Ork-dev at disis.music.vt.edu
>> https://disis.music.vt.edu/listinfo/l2ork-dev
>
> _______________________________________________
> L2Ork-dev mailing list
> L2Ork-dev at disis.music.vt.edu
> https://disis.music.vt.edu/listinfo/l2ork-dev