[Cuis-dev] Updates to VectorEngine and VectorEnginePlugin

[Hernan Wilkinson]

Amazing!!!
The rotation and zooming of the windows works great!

Congratulations Juan, it is completely usable at least in my machine. Great
work!!

Cheers!
Hernan.

On Fri, Mar 26, 2021 at 2:05 PM Juan Vuletich via Cuis-dev <
cuis-dev at lists.cuis.st> wrote:

> Hi Folks,
>
> I added some new features to the VectorEnginePlugin. Unicode text (UTF-8
> and UTF-32) can now be rendered by the plugin, with excellent
> performance, quality and multilingual support. SVG examples also work
> great. Take a look!
>
> I hope you like it.
>
> To explore this stuff:
>
> A -To see it running. Experimental. I only buit it for MacOS.
> 1) Grab VM including the plugin from
> https://www.dropbox.com/sh/rhkt4ayq24t2xbf/AACDb3mrjMUDB8Mptd-Bi6Zsa?dl=0
> 2) Pull Cuis repo.
> 3) Start Cuis with the VM above
> 4) Evaluate:
>      ChangeSet installNewUpdates.
> 5) Evaluate:
>      Feature require: 'VectorGraphics'.
> 6) Set a TT Font, like DejaVu.../DejaVuSans (Stuff will break with
> StrikeFonts and you'll need to kill the image)
> 7) Evaluate:
>      M3Exp01Morph new openInWorld.
>      Answer yes.
>      Play with the halo. Very slow! Still running the Smalltalk code for
> VectorEngine
> 8) Evaluate:
>      (self runningWorld canvas instVarNamed: 'vectorCanvas') usePlugin.
>      Play with the halo. Rotate (bottom left handle) and Zool (bottom
> right handle) Now it is very fast! The plugin is working.
> 9) For the following, it is advisable to download the GPL licensed
> "HanWangMingMedium" chinese font, and make it accessible to Cuis. Evaluate:
>      VectorCanvas demoUTF8Unicode.
>      VectorCanvas demoUTF32Unicode.
> 10) Evaluate
>      Feature require: 'SVG'.
>      SVGElementMorph examplesLion
>      SVGElementMorph examplesMagician
>      SVGElementMorph examplesTiger
>      SVGElementMorph phoneExample
>      Note that loading some of these files takes a bit of time. These
> are complex SVG files! Still, note that they are drawn quickly by the
> plugin, even when doing high-quality subpixel antialiasing. To compare
> quality, you might try opening these SVG files with a web browser. You
> can rotate and zoom, of course. You can also use the halo to extract or
> duplicate parts of the SVG composites, like you would do in Inkscape.
> 12) Hide the taskbar
> 13) redefine WidgetMorph>>requiresVectorCanvas to answer true,
> 14) refresh the display. Now every window and window element, including
> all the text, is drawn by VectorEngine. You might notice that all the
> appareances of any glyph, for example $a are no longer identical. Text
> layout and Glyph placement is done with Float arithmetic, using subpixel
> locations!
> 15) redefine WidgetMorph>>hasVariableExtent to answer false.
> 16) Open the halo on any window. Use the rotate and zoom handles.
>
> B - You want to look at the generated C code for the plugin, or build it
> for another platform. You need a working setup to build the
> OpenSmalltalk VM. The dropbox opensmalltalk-vm includes the files needed
> to build the VM with the plugin.
>
> C - You want to experiment with the Slang plugin source code. I have
> only done this in Cuis, not yet in the official Squeak VMMaker image.
> 1) Clone / pull VMMaker repo
> 2) Start Cuis
> 3) Evaluate:
>      ChangeSet installNewUpdates.
>      Feature require: 'VMMaker'.
>      Feature require: 'VectorEnginePlugin'
>      VectorEnginePlugin translateInDirectory: DirectoryEntry
> currentDirectory doInlining: true
>
> Cheers,
>
> --
> Juan Vuletich
> www.cuis-smalltalk.org
> https://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Dev
> https://github.com/jvuletich
> https://www.linkedin.com/in/juan-vuletich-75611b3
> @JuanVuletich
>
> --
> Cuis-dev mailing list
> Cuis-dev at lists.cuis.st
> https://lists.cuis.st/mailman/listinfo/cuis-dev
>


-- 
<https://10pines.com/>Hernán WilkinsonSoftware Developer, Teacher & Coach

Alem 896, Floor 6, Buenos Aires, Argentina

+54 11 6091 3125

@HernanWilkinson
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