April 2017 - Pharo-users - lists.pharo.org

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by Luc Fabresse

Nice Juraj! ;-) #Luc 2017-04-24 20:51 GMT+02:00 K K Subbu <kksubbu.ml(a)gmail.com>: > On Monday 24 April 2017 08:00 PM, Juraj Kubelka wrote: > >> >> Please, can you send me a screenshot? Or submit the screenshot >> here https://github.com/JurajKubelka/PharoSprint/issues/new >> > > Done. I think the error appears because when a login fails, the message > causes a horiz scroll bar to be added to the panel pushing the fields > beyond the top edge. I stumbled on this error because I tried using my > fogbugz id whereas the login field needs the registered email id for login. > > Regards .. Subbu > >

April 27, 2017

Re: [Pharo-users] Sending byte array in a JSON format

by Sven Van Caekenberghe

> On 27 Apr 2017, at 14:57, Juraj Kubelka <juraj.kubelka(a)icloud.com> wrote: > > Hi, > > Thatâs great! Thank you a lot for the information :-) Well, it is Peter who came up with the alternative request. All credit to him. > Juraj > >> On Apr 27, 2017, at 09:52, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: >> >> >>> On 26 Apr 2017, at 17:21, Peter Uhnak <i.uhnak(a)gmail.com> wrote: >>> >>> Maybe the content is not properly stored in the JSON on github' side? But you can use base64 in `accept:` to make it work. >>> >>> json := STONJSON fromString: (ZnClient new >>> url: 'https://api.github.com/gists/5503544'; >>> accept: 'application/vnd.github.v3.base64+json'; >>> get). >>> b64 := ((json at: 'files') at: 'thumbnail.png') at: 'content'. >>> PNGReadWriter formFromStream: (Base64MimeConverter mimeDecodeToBytes: content readStream). >> >> Ah, great that you found a way to force the server to send the data in a more sensible way ! >> >> Using the latest code from Zn & NeoJSON, combining with another recent thread (accessing nested dictionaries), this could be written as: >> >> json := NeoJSONObject fromString: (ZnClient new >> url: 'https://api.github.com/gists/5503544'; >> accept: 'application/vnd.github.v3.base64+json'; >> get). >> b64 := json atPath: #('files' 'thumbnail.png' 'content'). >> PNGReadWriter formFromStream: (ZnBase64Encoder new decode: b64) readStream. >> >> Sven >> >>> Peter >>> >>> >>> On Wed, Apr 26, 2017 at 04:50:04PM +0200, Sven Van Caekenberghe wrote: >>>> I am puzzled by how they actually encoded the PNG as a String, I tried a couple of alternatives but I could not get binary data out of it so that it parsed successfully as PNG. >>>> >>>> If I would have to encode binary data in JSON I would use Base64 encoding (but alternatives exist). >>>> >>>>> On 24 Apr 2017, at 20:36, Juraj Kubelka <juraj.kubelka(a)icloud.com> wrote: >>>>> >>>>> Hi, >>>>> >>>>> I was playing with GitHub Gist API and I have queried the following Gist: https://gist.github.com/mbostock/5503544 >>>>> I was interested how the PNG image is returned: https://gist.github.com/mbostock/5503544#file-thumbnail-png >>>>> >>>>> I can obtain the whole Gist executing: >>>>> >>>>> STONJSON fromString: >>>>> (ZnClient new >>>>> url: 'https://api.github.com/gists/5503544'; >>>>> accept: 'application/vnd.github.v3+json'; >>>>> get). >>>>> >>>>> I can get PNG contents executing: >>>>> >>>>> pngData := (ZnEasy get: >>>>> ((((STONJSON fromString: >>>>> (ZnClient new >>>>> url: 'https://api.github.com/gists/5503544'; >>>>> accept: 'application/vnd.github.v3+json'; >>>>> get)) at: 'files') at: 'thumbnail.png') at: 'raw_url')) contents. >>>>> PNGReadWriter formFromStream: rawPng readStream. >>>>> >>>>> But the PNG image is part of the Gist query and can be retrieved by: >>>>> >>>>> pngContent := ((((STONJSON fromString: >>>>> (ZnClient new >>>>> url: 'https://api.github.com/gists/5503544'; >>>>> accept: 'application/vnd.github.v3+json'; >>>>> get)) at: 'files') at: 'thumbnail.png') at: 'content'). >>>>> >>>>> "As pngContent is a WideString, I cannot use:" >>>>> PNGReadWriter formFromStream: pngContent readStream. >>>>> >>>>> How can I read the PNG image from the pngContent? Any idea? >>>>> And the reverse question: How can I send the PNG bytes using JSON format? >>>>> >>>>> Thanks! >>>>> Juraj >>>>> >>>> >>>> >>> >> >> > >

April 27, 2017

Re: [Pharo-users] Sending byte array in a JSON format

by Juraj Kubelka

Hi, Thatâs great! Thank you a lot for the information :-) Juraj > On Apr 27, 2017, at 09:52, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > >> On 26 Apr 2017, at 17:21, Peter Uhnak <i.uhnak(a)gmail.com> wrote: >> >> Maybe the content is not properly stored in the JSON on github' side? But you can use base64 in `accept:` to make it work. >> >> json := STONJSON fromString: (ZnClient new >> url: 'https://api.github.com/gists/5503544'; >> accept: 'application/vnd.github.v3.base64+json'; >> get). >> b64 := ((json at: 'files') at: 'thumbnail.png') at: 'content'. >> PNGReadWriter formFromStream: (Base64MimeConverter mimeDecodeToBytes: content readStream). > > Ah, great that you found a way to force the server to send the data in a more sensible way ! > > Using the latest code from Zn & NeoJSON, combining with another recent thread (accessing nested dictionaries), this could be written as: > > json := NeoJSONObject fromString: (ZnClient new > url: 'https://api.github.com/gists/5503544'; > accept: 'application/vnd.github.v3.base64+json'; > get). > b64 := json atPath: #('files' 'thumbnail.png' 'content'). > PNGReadWriter formFromStream: (ZnBase64Encoder new decode: b64) readStream. > > Sven > >> Peter >> >> >> On Wed, Apr 26, 2017 at 04:50:04PM +0200, Sven Van Caekenberghe wrote: >>> I am puzzled by how they actually encoded the PNG as a String, I tried a couple of alternatives but I could not get binary data out of it so that it parsed successfully as PNG. >>> >>> If I would have to encode binary data in JSON I would use Base64 encoding (but alternatives exist). >>> >>>> On 24 Apr 2017, at 20:36, Juraj Kubelka <juraj.kubelka(a)icloud.com> wrote: >>>> >>>> Hi, >>>> >>>> I was playing with GitHub Gist API and I have queried the following Gist: https://gist.github.com/mbostock/5503544 >>>> I was interested how the PNG image is returned: https://gist.github.com/mbostock/5503544#file-thumbnail-png >>>> >>>> I can obtain the whole Gist executing: >>>> >>>> STONJSON fromString: >>>> (ZnClient new >>>> url: 'https://api.github.com/gists/5503544'; >>>> accept: 'application/vnd.github.v3+json'; >>>> get). >>>> >>>> I can get PNG contents executing: >>>> >>>> pngData := (ZnEasy get: >>>> ((((STONJSON fromString: >>>> (ZnClient new >>>> url: 'https://api.github.com/gists/5503544'; >>>> accept: 'application/vnd.github.v3+json'; >>>> get)) at: 'files') at: 'thumbnail.png') at: 'raw_url')) contents. >>>> PNGReadWriter formFromStream: rawPng readStream. >>>> >>>> But the PNG image is part of the Gist query and can be retrieved by: >>>> >>>> pngContent := ((((STONJSON fromString: >>>> (ZnClient new >>>> url: 'https://api.github.com/gists/5503544'; >>>> accept: 'application/vnd.github.v3+json'; >>>> get)) at: 'files') at: 'thumbnail.png') at: 'content'). >>>> >>>> "As pngContent is a WideString, I cannot use:" >>>> PNGReadWriter formFromStream: pngContent readStream. >>>> >>>> How can I read the PNG image from the pngContent? Any idea? >>>> And the reverse question: How can I send the PNG bytes using JSON format? >>>> >>>> Thanks! >>>> Juraj >>>> >>> >>> >> > >

April 27, 2017

Re: [Pharo-users] Sending byte array in a JSON format

by Sven Van Caekenberghe

> On 26 Apr 2017, at 17:25, Peter Uhnak <i.uhnak(a)gmail.com> wrote: > > It is also possible that ZnEasy is doing some encoding transformations that breaks it; after all, you are retrieving binary data as text data, so encoding should be applied on it. JSON is text, using a specific encoding indeed. Since the JSON comes in and is parsed OK, it is safe to assume the textual decoding went fine. The problem is that the server sends binary data in a string without us knowing how it encoded them. That is why the base64 approach is better. > Peter > > On Wed, Apr 26, 2017 at 04:50:04PM +0200, Sven Van Caekenberghe wrote: >> I am puzzled by how they actually encoded the PNG as a String, I tried a couple of alternatives but I could not get binary data out of it so that it parsed successfully as PNG. >> >> If I would have to encode binary data in JSON I would use Base64 encoding (but alternatives exist). >> >>> On 24 Apr 2017, at 20:36, Juraj Kubelka <juraj.kubelka(a)icloud.com> wrote: >>> >>> Hi, >>> >>> I was playing with GitHub Gist API and I have queried the following Gist: https://gist.github.com/mbostock/5503544 >>> I was interested how the PNG image is returned: https://gist.github.com/mbostock/5503544#file-thumbnail-png >>> >>> I can obtain the whole Gist executing: >>> >>> STONJSON fromString: >>> (ZnClient new >>> url: 'https://api.github.com/gists/5503544'; >>> accept: 'application/vnd.github.v3+json'; >>> get). >>> >>> I can get PNG contents executing: >>> >>> pngData := (ZnEasy get: >>> ((((STONJSON fromString: >>> (ZnClient new >>> url: 'https://api.github.com/gists/5503544'; >>> accept: 'application/vnd.github.v3+json'; >>> get)) at: 'files') at: 'thumbnail.png') at: 'raw_url')) contents. >>> PNGReadWriter formFromStream: rawPng readStream. >>> >>> But the PNG image is part of the Gist query and can be retrieved by: >>> >>> pngContent := ((((STONJSON fromString: >>> (ZnClient new >>> url: 'https://api.github.com/gists/5503544'; >>> accept: 'application/vnd.github.v3+json'; >>> get)) at: 'files') at: 'thumbnail.png') at: 'content'). >>> >>> "As pngContent is a WideString, I cannot use:" >>> PNGReadWriter formFromStream: pngContent readStream. >>> >>> How can I read the PNG image from the pngContent? Any idea? >>> And the reverse question: How can I send the PNG bytes using JSON format? >>> >>> Thanks! >>> Juraj >>> >> >> >

April 27, 2017

Re: [Pharo-users] Sending byte array in a JSON format

by Sven Van Caekenberghe

> On 26 Apr 2017, at 17:21, Peter Uhnak <i.uhnak(a)gmail.com> wrote: > > Maybe the content is not properly stored in the JSON on github' side? But you can use base64 in `accept:` to make it work. > > json := STONJSON fromString: (ZnClient new > url: 'https://api.github.com/gists/5503544'; > accept: 'application/vnd.github.v3.base64+json'; > get). > b64 := ((json at: 'files') at: 'thumbnail.png') at: 'content'. > PNGReadWriter formFromStream: (Base64MimeConverter mimeDecodeToBytes: content readStream). Ah, great that you found a way to force the server to send the data in a more sensible way ! Using the latest code from Zn & NeoJSON, combining with another recent thread (accessing nested dictionaries), this could be written as: json := NeoJSONObject fromString: (ZnClient new url: 'https://api.github.com/gists/5503544'; accept: 'application/vnd.github.v3.base64+json'; get). b64 := json atPath: #('files' 'thumbnail.png' 'content'). PNGReadWriter formFromStream: (ZnBase64Encoder new decode: b64) readStream. Sven > Peter > > > On Wed, Apr 26, 2017 at 04:50:04PM +0200, Sven Van Caekenberghe wrote: >> I am puzzled by how they actually encoded the PNG as a String, I tried a couple of alternatives but I could not get binary data out of it so that it parsed successfully as PNG. >> >> If I would have to encode binary data in JSON I would use Base64 encoding (but alternatives exist). >> >>> On 24 Apr 2017, at 20:36, Juraj Kubelka <juraj.kubelka(a)icloud.com> wrote: >>> >>> Hi, >>> >>> I was playing with GitHub Gist API and I have queried the following Gist: https://gist.github.com/mbostock/5503544 >>> I was interested how the PNG image is returned: https://gist.github.com/mbostock/5503544#file-thumbnail-png >>> >>> I can obtain the whole Gist executing: >>> >>> STONJSON fromString: >>> (ZnClient new >>> url: 'https://api.github.com/gists/5503544'; >>> accept: 'application/vnd.github.v3+json'; >>> get). >>> >>> I can get PNG contents executing: >>> >>> pngData := (ZnEasy get: >>> ((((STONJSON fromString: >>> (ZnClient new >>> url: 'https://api.github.com/gists/5503544'; >>> accept: 'application/vnd.github.v3+json'; >>> get)) at: 'files') at: 'thumbnail.png') at: 'raw_url')) contents. >>> PNGReadWriter formFromStream: rawPng readStream. >>> >>> But the PNG image is part of the Gist query and can be retrieved by: >>> >>> pngContent := ((((STONJSON fromString: >>> (ZnClient new >>> url: 'https://api.github.com/gists/5503544'; >>> accept: 'application/vnd.github.v3+json'; >>> get)) at: 'files') at: 'thumbnail.png') at: 'content'). >>> >>> "As pngContent is a WideString, I cannot use:" >>> PNGReadWriter formFromStream: pngContent readStream. >>> >>> How can I read the PNG image from the pngContent? Any idea? >>> And the reverse question: How can I send the PNG bytes using JSON format? >>> >>> Thanks! >>> Juraj >>> >> >> >

April 27, 2017

Re: [Pharo-users] improving audio/video quality of pharo days recordings

by Sean P. DeNigris

Peter Uhnak wrote > clip-on microphone Yes! Even a cheap lapel mic like the Sony ECM-CS3 would make a world of difference ----- Cheers, Sean -- View this message in context: http://forum.world.st/improving-audio-video-quality-of-pharo-days-recording… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

April 27, 2017

Re: [Pharo-users] Sending byte array in a JSON format

by Peter Uhnak

It is also possible that ZnEasy is doing some encoding transformations that breaks it; after all, you are retrieving binary data as text data, so encoding should be applied on it. Peter On Wed, Apr 26, 2017 at 04:50:04PM +0200, Sven Van Caekenberghe wrote: > I am puzzled by how they actually encoded the PNG as a String, I tried a couple of alternatives but I could not get binary data out of it so that it parsed successfully as PNG. > > If I would have to encode binary data in JSON I would use Base64 encoding (but alternatives exist). > > > On 24 Apr 2017, at 20:36, Juraj Kubelka <juraj.kubelka(a)icloud.com> wrote: > > > > Hi, > > > > I was playing with GitHub Gist API and I have queried the following Gist: https://gist.github.com/mbostock/5503544 > > I was interested how the PNG image is returned: https://gist.github.com/mbostock/5503544#file-thumbnail-png > > > > I can obtain the whole Gist executing: > > > > STONJSON fromString: > > (ZnClient new > > url: 'https://api.github.com/gists/5503544'; > > accept: 'application/vnd.github.v3+json'; > > get). > > > > I can get PNG contents executing: > > > > pngData := (ZnEasy get: > > ((((STONJSON fromString: > > (ZnClient new > > url: 'https://api.github.com/gists/5503544'; > > accept: 'application/vnd.github.v3+json'; > > get)) at: 'files') at: 'thumbnail.png') at: 'raw_url')) contents. > > PNGReadWriter formFromStream: rawPng readStream. > > > > But the PNG image is part of the Gist query and can be retrieved by: > > > > pngContent := ((((STONJSON fromString: > > (ZnClient new > > url: 'https://api.github.com/gists/5503544'; > > accept: 'application/vnd.github.v3+json'; > > get)) at: 'files') at: 'thumbnail.png') at: 'content'). > > > > "As pngContent is a WideString, I cannot use:" > > PNGReadWriter formFromStream: pngContent readStream. > > > > How can I read the PNG image from the pngContent? Any idea? > > And the reverse question: How can I send the PNG bytes using JSON format? > > > > Thanks! > > Juraj > > > >

April 26, 2017

Re: [Pharo-users] Sending byte array in a JSON format

by Peter Uhnak

Maybe the content is not properly stored in the JSON on github' side? But you can use base64 in `accept:` to make it work. json := STONJSON fromString: (ZnClient new url: 'https://api.github.com/gists/5503544'; accept: 'application/vnd.github.v3.base64+json'; get). b64 := ((json at: 'files') at: 'thumbnail.png') at: 'content'. PNGReadWriter formFromStream: (Base64MimeConverter mimeDecodeToBytes: content readStream). Peter On Wed, Apr 26, 2017 at 04:50:04PM +0200, Sven Van Caekenberghe wrote: > I am puzzled by how they actually encoded the PNG as a String, I tried a couple of alternatives but I could not get binary data out of it so that it parsed successfully as PNG. > > If I would have to encode binary data in JSON I would use Base64 encoding (but alternatives exist). > > > On 24 Apr 2017, at 20:36, Juraj Kubelka <juraj.kubelka(a)icloud.com> wrote: > > > > Hi, > > > > I was playing with GitHub Gist API and I have queried the following Gist: https://gist.github.com/mbostock/5503544 > > I was interested how the PNG image is returned: https://gist.github.com/mbostock/5503544#file-thumbnail-png > > > > I can obtain the whole Gist executing: > > > > STONJSON fromString: > > (ZnClient new > > url: 'https://api.github.com/gists/5503544'; > > accept: 'application/vnd.github.v3+json'; > > get). > > > > I can get PNG contents executing: > > > > pngData := (ZnEasy get: > > ((((STONJSON fromString: > > (ZnClient new > > url: 'https://api.github.com/gists/5503544'; > > accept: 'application/vnd.github.v3+json'; > > get)) at: 'files') at: 'thumbnail.png') at: 'raw_url')) contents. > > PNGReadWriter formFromStream: rawPng readStream. > > > > But the PNG image is part of the Gist query and can be retrieved by: > > > > pngContent := ((((STONJSON fromString: > > (ZnClient new > > url: 'https://api.github.com/gists/5503544'; > > accept: 'application/vnd.github.v3+json'; > > get)) at: 'files') at: 'thumbnail.png') at: 'content'). > > > > "As pngContent is a WideString, I cannot use:" > > PNGReadWriter formFromStream: pngContent readStream. > > > > How can I read the PNG image from the pngContent? Any idea? > > And the reverse question: How can I send the PNG bytes using JSON format? > > > > Thanks! > > Juraj > > > >

April 26, 2017

Re: [Pharo-users] State of Tabular package ?

by phil＠highoctane.be

I am using it for accessing data from XLSX files and it works with several sheets etc. I found XLSX creation to have limits in terms of many sheets one can do (kind of hardcoded up to 3 or something). It is definitely a package worth some love. Phil On Wed, Apr 26, 2017 at 4:53 PM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > Hi, > > Does anyone know what the state of the Tabular package is ? Is it > maintained ? Kept to date ? > > It feels a bit unpolished, lacks documentation. > > I am using it for XLS report generation and it does seem to work fine for > simple tables. > > Sven > >

April 26, 2017

State of Tabular package ?

by Sven Van Caekenberghe

Hi, Does anyone know what the state of the Tabular package is ? Is it maintained ? Kept to date ? It feels a bit unpolished, lacks documentation. I am using it for XLS report generation and it does seem to work fine for simple tables. Sven

April 26, 2017