June 2015 - Pharo-users - lists.pharo.org

Setting GUI pointer's position

by Laura Risani

How can i programmatically set the GUI pointer's position? I've tried World currentHand position:20@20. World activeHand position:20@20. but didn't work.

June 29, 2015

Re: [Pharo-users] [Ann] DragPanels: Floating palette windows with drag-and-drop in Morphic

by Stephan Eggermont

On 29-06-15 14:38, Nicolai Hess wrote: > Yes, but clipping may be an issue, and any Morph with a slightly more > advanded drawing method (like lists) > may be more difficult. And you need a way to convert patterns/images to > something that can be included > in a svg file. Clipping paths in svg seem easy to use. Embedding images is simple, according to SO. Base64 encoded. An issue is of course that you might want to have a different layout on-screen than in SVG. Hannes: I assume you want SVG for display on a webpage? Stephan

June 29, 2015

Re: [Pharo-users] Displaying an image from a file

by Laura Risani

Ok ! The snippet explained the reading from file, and ThemeIcons explained the saving-to/loading-from method. On Sat, Jun 27, 2015 at 2:20 PM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > Here are two examples that contain elements of what you want: > > (ZnEasy getPng: 'http://pharo.org/web/files/pharo.png') > asMorph openInWindow. > > (FileLocator workingDirectory filesMatching: '*.jpg') do: [ :each | > (each withExtension: 'png') writeStreamDo: [ :out | > each readStreamDo: [ :in | > (PNGReadWriter on: out) nextPutImage: > (JPEGReadWriter on: in) nextImage ] ] ] > > Seaside has file library objects that store images and other resources as > methods. > > > On 27 Jun 2015, at 17:15, Laura Risani <laura.risani(a)gmail.com> wrote: > > > > Hi all, > > How can i make a morph display an image from a file at my hd? How can i > further "save" this image inside a class so to be ported via packages? > > Thanks, > > Laura > > >

June 29, 2015

Re: [Pharo-users] [Ann] DragPanels: Floating palette windows with drag-and-drop in Morphic

by H. Hirzel

On 6/29/15, Nicolai Hess <nicolaihess(a)web.de> wrote: > 2015-06-29 12:55 GMT+02:00 Peter UhnÃ¡k <i.uhnak(a)gmail.com>: > >> >> >> On Mon, Jun 29, 2015 at 12:16 PM, Stephan Eggermont <stephan(a)stack.nl> >> wrote: >> >>> On 29-06-15 10:26, Hannes Hirzel wrote: >>> >>>> Thank you, Stephan, for providing a well worked out example continuing >>>> where >>>> Morphic tutorials normally end. This is a real need to unearth >>>> functions >>>> which have been there fore years but mostly unused. >>>> >>>> The two video clips document the use cases of the code nicely. >>>> >>>> A question not answered yet is: How do I export the panel with the >>>> cards >>>> as >>>> an SVG file? >>>> >>> >>> Hmm. What would be the best way to do that? >>> - I assume in Bloc with Cairo I should be able to use an SVGCanvas? >>> >> >> I thought that this was already possible with Morph>>drawOnAthensCanvas: >> > > That does not imply it can be used to generate svg elements on the fly. > Athens backend is based on a vector "drawing" library that does not > mean it can generate any vector drawing files ... > luckily, cairo can ! And with just a couple of native function calls, What are these calls? we > can > add this support to athens (see attached svg images) Unfortunately the svg file does not contain the text of the cards. E.g. searching for 'Test2' gives no result.

June 29, 2015

Re: [Pharo-users] [Ann] DragPanels: Floating palette windows with drag-and-drop in Morphic

by H. Hirzel

On 6/29/15, Nicolai Hess <nicolaihess(a)web.de> wrote: > 2015-06-29 10:26 GMT+02:00 Hannes Hirzel <hannes.hirzel(a)gmail.com>: > >> Thank you, Stephan, for providing a well worked out example continuing >> where >> Morphic tutorials normally end. This is a real need to unearth functions >> which have been there fore years but mostly unused. >> >> The two video clips document the use cases of the code nicely. >> >> A question not answered yet is: How do I export the panel with the cards >> as >> an SVG file? >> > > Really, SVG? why would you want to do that? Exporting a morph as png or jpg > file works easy. Yes, png is a workaound, but only SVG may be searched for text. > >> >> --Hannes >> >> >> >> -- >> View this message in context: >> http://forum.world.st/Ann-DragPanels-Floating-palette-windows-with-drag-and… >> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >> >> >

June 29, 2015

Re: [Pharo-users] [Ann] DragPanels: Floating palette windows with drag-and-drop in Morphic

by Nicolai Hess

2015-06-29 12:55 GMT+02:00 Peter UhnÃ¡k <i.uhnak(a)gmail.com>: > > > On Mon, Jun 29, 2015 at 12:16 PM, Stephan Eggermont <stephan(a)stack.nl> > wrote: > >> On 29-06-15 10:26, Hannes Hirzel wrote: >> >>> Thank you, Stephan, for providing a well worked out example continuing >>> where >>> Morphic tutorials normally end. This is a real need to unearth functions >>> which have been there fore years but mostly unused. >>> >>> The two video clips document the use cases of the code nicely. >>> >>> A question not answered yet is: How do I export the panel with the cards >>> as >>> an SVG file? >>> >> >> Hmm. What would be the best way to do that? >> - I assume in Bloc with Cairo I should be able to use an SVGCanvas? >> > > I thought that this was already possible with Morph>>drawOnAthensCanvas: > That does not imply it can be used to generate svg elements on the fly. Athens backend is based on a vector "drawing" library that does not mean it can generate any vector drawing files ... luckily, cairo can ! And with just a couple of native function calls, we can add this support to athens (see attached svg images)

June 29, 2015

Re: [Pharo-users] [Ann] DragPanels: Floating palette windows with drag-and-drop in Morphic

by Nicolai Hess

2015-06-29 12:16 GMT+02:00 Stephan Eggermont <stephan(a)stack.nl>: > On 29-06-15 10:26, Hannes Hirzel wrote: > >> Thank you, Stephan, for providing a well worked out example continuing >> where >> Morphic tutorials normally end. This is a real need to unearth functions >> which have been there fore years but mostly unused. >> >> The two video clips document the use cases of the code nicely. >> >> A question not answered yet is: How do I export the panel with the cards >> as >> an SVG file? >> > > Hmm. What would be the best way to do that? > - I assume in Bloc with Cairo I should be able to use an SVGCanvas? > There is no SVGCanvas. Only AthensCanvas with different possible backends (only cairo and balloon for now) > - SVG is pretty simple, I could just walk the morph tree and generate a > file. > Yes, but clipping may be an issue, and any Morph with a slightly more advanded drawing method (like lists) may be more difficult. And you need a way to convert patterns/images to something that can be included in a svg file. > - Roassal2 has SVG export. I could generate a Roassal image and export > that. > Roassal is based on its own drawing/shape library (Trachel). Yes Trachel uses Athens, but trachels svg export does not (AFAIK). > > Stephan > > > >

June 29, 2015

Re: [Pharo-users] adding an element to an empty array

by Peter UhnÃ¡k

Or if you want to create an array with elements already in it (this works both for array and collections) you can also do ~~~~~~~~~~ { anElement } "dynamic array syntax, Pharo-only" ~~~~~~~~~~ or ~~~~~~~~ #('element') "static array, works only for scalars" ~~~~~~~~ or ~~~~~~~~~~~~~~~~ Array with: anElement "constructor method, works also with more elements... Array class>>with:with:with:..." ~~~~~~~~~~~~~~~~ or ~~~~~~~~~~~~~~~~~~~~~~~~~ OrderedCollection with: anElement "as above, but creates a collection instead" ~~~~~~~~~~~~~~~~~~~~~~~~~ Peter On Mon, Jun 29, 2015 at 2:23 PM, Henrik Johansen < henrik.s.johansen(a)veloxit.no> wrote: > > On 29 Jun 2015, at 2:18 , abdelghani ALIDRA <alidrandco(a)yahoo.fr> wrote: > > Hi guys, > > Is there any way to add an element to an empty array (must not use new: > anElement)? > > Cheers > > > It sounds like you want to use an OrderedCollection, not an Array. > Those will grow and shrink as needed when you use add:/remove: calls. > > Cheers, > Henry >

June 29, 2015

Re: [Pharo-users] [Ann] DragPanels: Floating palette windows with drag-and-drop in Morphic

by Nicolai Hess

2015-06-29 10:26 GMT+02:00 Hannes Hirzel <hannes.hirzel(a)gmail.com>: > Thank you, Stephan, for providing a well worked out example continuing > where > Morphic tutorials normally end. This is a real need to unearth functions > which have been there fore years but mostly unused. > > The two video clips document the use cases of the code nicely. > > A question not answered yet is: How do I export the panel with the cards as > an SVG file? > Really, SVG? why would you want to do that? Exporting a morph as png or jpg file works easy. > > --Hannes > > > > -- > View this message in context: > http://forum.world.st/Ann-DragPanels-Floating-palette-windows-with-drag-and… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

June 29, 2015

Re: [Pharo-users] adding an element to an empty array

by Henrik Johansen

> On 29 Jun 2015, at 2:18 , abdelghani ALIDRA <alidrandco(a)yahoo.fr> wrote: > > Hi guys, > > Is there any way to add an element to an empty array (must not use new: anElement)? > > Cheers It sounds like you want to use an OrderedCollection, not an Array. Those will grow and shrink as needed when you use add:/remove: calls. Cheers, Henry

June 29, 2015