<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html; charset=UTF-8" http-equiv="Content-Type"> <title></title> </head> <body bgcolor="#ffffff" text="#000000"> On 7/27/2020 7:25 AM, Hilaire Fernandes via Cuis-dev wrote: <blockquote cite="mid:9dc2f959-54e6-300f-e26d-d76c1de46719@drgeo.eu" type="cite"> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> I understood what happened, when the image is saved, the benefit of this execution is lost and should be executed again before operating anythings: <blockquote> <pre>self runningWorld setCanvas: (HybridCanvas onForm: Display). </pre> <pre>self runningWorld canvas class. </pre> </blockquote> Hilaire <div class="moz-cite-prefix">Le 23/07/2020 à 19:00, Hilaire Fernandes a écrit : </div> <blockquote type="cite" cite="mid:31c7abc1-d884-de95-81f8-6003a35401ff@drgeo.eu"> Whne I save the image (I think with the Ellipse morph destroyed) then start the image again I have this DNU on EllipseMorph2>>morphContainsPoint: Btw, why can't I find the error log file? </blockquote> <pre class="moz-signature" cols="72">-- GNU Dr. Geo <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://drgeo.eu">http://drgeo.eu</a></pre> </blockquote> Hi Hilaire, Folks, I've been working on a new implementation. It starts to work reasonably well. The HybridCanvas will choose automatically between BitBlt and VectorCanvas depending on the morpt to be drawn. The RectangleLikeMorph hierarchy will be drawn using BitBlt, unless rotated or scaled. Other Morph classes will use VectorCanvas. Play, for example, with EllipseMorph2 and EllipseMorph3. The code is in 77 changesets. To make it easier for you to play with all this, I prepared a couple of images. Check <a class="moz-txt-link-freetext" href="https://www.dropbox.com/s/lppb9a3k7q3t9qs/VectorGraphicsCoreUpdates.zip?dl=0">https://www.dropbox.com/s/lppb9a3k7q3t9qs/VectorGraphicsCoreUpdates.zip?dl=0</a> <a class="moz-txt-link-freetext" href="https://www.dropbox.com/s/cptwrfsu2bm36nn/VGExperimentsImage.zip?dl=0">https://www.dropbox.com/s/cptwrfsu2bm36nn/VGExperimentsImage.zip?dl=0</a> <a class="moz-txt-link-freetext" href="https://www.dropbox.com/s/08fq770i6wi3eds/VGExperiments32Image.zip?dl=0">https://www.dropbox.com/s/08fq770i6wi3eds/VGExperiments32Image.zip?dl=0</a> If you want to load the changesets, in a Cuis updated to #4253 do: - Feature require: 'VectorGraphics' - Load the changesets in order. Copying them to an CoreUpdates folder and installing new updates should work. - MorphicCanvas activeSubclass: HybridCanvas - Set system font: DejaVu Sans - World / New Morph… / EllipseMorph3, for example. Try the "new" rotate / zoom handle (yes, I know. They should be 2 separate handles!). Browse the code. Check how simple a VG morph can be! Check that you can grab the ellipse from any inner pixel, and no outside pixel, even if the EllipseMorph3 class doesn't implement #morphContainsPoint: or any other similar method. It also doesn't include any method to tell the area it occupies on the Display, and still updates and redraws work correctly. See what happens if you change the code to make it bigger, for example, and the in an ispector do 'self redrawNeeded', or just World / restore display. Check EllipseMorph2 that includes stepping. In the class comment of one of those there are several lines of code, that if evaluated together in a Workspace, will stitch a few ellipses together and makes them step. Try it! As usual, all this is experimental. It could break in unexpected ways, etc. Feedback is most welcome. Cheeers, <pre class="moz-signature" cols="72">-- Juan Vuletich <a class="moz-txt-link-abbreviated" href="http://www.cuis-smalltalk.org">www.cuis-smalltalk.org</a> <a class="moz-txt-link-freetext" href="https://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Dev">https://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Dev</a> <a class="moz-txt-link-freetext" href="https://github.com/jvuletich">https://github.com/jvuletich</a> <a class="moz-txt-link-freetext" href="https://www.linkedin.com/in/juan-vuletich-75611b3">https://www.linkedin.com/in/juan-vuletich-75611b3</a> @JuanVuletich</pre> </body> </html>