February 2015 - Pharo-users

Re: [Pharo-users] How to send messages to an object.

by Damien Pollet

What if inspectors and workspaces were able to copy-paste object references? When pasting, a new binding would be made with some automatic name. I always wondered why this was not part of Morphicâ¦ On 7 February 2015 at 23:52, HernÃ¡n Morales Durand <hernan.morales(a)gmail.com > wrote: > I see! something like? > > self addMorphCentered: (EllipseMorph allInstances detect: [ : i | i name = > 'an EllipseMorph(485752832)' ]) > > > 2015-02-07 19:39 GMT-03:00 Sean P. DeNigris <sean(a)clipperadams.com>: > > hernanmd wrote >> > Use the halos... select the Menu halo (red) -> debug... -> explore morph >> >> Yes, you can bring up an inspector/explorer on each morph, but the hiccup >> is >> how do you connect them i.e. send one as an argument to the other? >> >> >> >> ----- >> Cheers, >> Sean >> -- >> View this message in context: >> http://forum.world.st/How-to-send-messages-to-an-object-tp4804394p4804413.h… >> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >> >> >

Feb. 7, 2015

Re: [Pharo-users] How to send messages to an object.

by HernÃ¡n Morales Durand

I see! something like? self addMorphCentered: (EllipseMorph allInstances detect: [ : i | i name = 'an EllipseMorph(485752832)' ]) 2015-02-07 19:39 GMT-03:00 Sean P. DeNigris <sean(a)clipperadams.com>: > hernanmd wrote > > Use the halos... select the Menu halo (red) -> debug... -> explore morph > > Yes, you can bring up an inspector/explorer on each morph, but the hiccup > is > how do you connect them i.e. send one as an argument to the other? > > > > ----- > Cheers, > Sean > -- > View this message in context: > http://forum.world.st/How-to-send-messages-to-an-object-tp4804394p4804413.h… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

Feb. 7, 2015

Re: [Pharo-users] RadarMorph (was Re: Canvas Transform Goes Haywire if Scaled)

by Tudor Girba

Hi, Nice. I see your environment is advancing nicely. Keep it up! Doru On Thu, Feb 5, 2015 at 7:06 PM, Sean P. DeNigris <sean(a)clipperadams.com> wrote: > Nicolai Hess wrote > > What do you want to achieve? > > I've created an infinite desktop a la Self. To make things manageable, I'm > currently writing a RadarView (also just like Self) to show a map of all > the > objects on the desktop, and the position of the current viewport. It's > working now thanks to your help! > > There is now only 1 major bug, and 3 little glitches: > 1. (BUG): Every once in a while (can't figure out how to reproduce), it > displays the Red X of Death like so: > > <http://forum.world.st/file/n4804025/Screenshot_2015-02-05_11.png> > > 2. When the container window is moved, the contents temporarily jump out of > the radar screen > 3. when the radar is dragged over another morph in the Self World, the > clipping gets very weird > 4. One side of the blue highlight rectangle sometimes disappears on resize > > #2, #3, and #4 can be seen in this screencast: https://vimeo.com/118826521 > > > > > > ----- > Cheers, > Sean > -- > View this message in context: > http://forum.world.st/Canvas-Transform-Goes-Haywire-if-Scaled-tp4803830p480… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > > -- www.tudorgirba.com "Every thing has its own flow"

Feb. 7, 2015

Re: [Pharo-users] Spotter: How to see more beyond #/##

by Tudor Girba

Hi, I agree (again) that the shortcuts are not well explained and we will work on it. Showing a list of all actions far away from the context in which they should be used is more of a patch than a solution though. Let us search for a better way :). Tooltips will probably be the first thing we'll try. Cheers, Doru On Sat, Feb 7, 2015 at 8:20 PM, Johan Fabry <jfabry(a)dcc.uchile.cl> wrote: > > +1 on what Stef said. > > And for what itâs worth, I think that the biggest step to add usability of > the spotter right now would be a simple legend at the bottom of the > results. It would list the shortcut keys applicable to the current > selection with a small description of what they do. Itâs not sexy and > exiting to implement but it will be a huge help. For example, such a legend > would have eliminated all the questions and conversations on the spotter > that happened this week. > > On Feb 7, 2015, at 15:50, stepharo <stepharo(a)free.fr> wrote: > > > Le 5/2/15 14:38, Tudor Girba a Ã©crit : > > Hi, > > Yes. As Alex said, we want all actions to have a visual representation. > This is on our todo list. > > The question is why should we learn a visual representation > presenting "cmd"-> is more effective (there are plenty of research paper > on UI learnability) that a triangle. > > Stef > > > As for configurability, there is no grand plan at the moment. We could > indeed expose shortcuts as settings. > > Cheers, > Doru > > > > ---> Save our in-boxes! http://emailcharter.org <--- > > Johan Fabry - http://pleiad.cl/~jfabry > PLEIAD lab - Computer Science Department (DCC) - University of Chile > > -- www.tudorgirba.com "Every thing has its own flow"

Feb. 7, 2015

Re: [Pharo-users] How to send messages to an object.

by HernÃ¡n Morales Durand

2015-02-07 19:28 GMT-03:00 nacho <0800nacho(a)gmail.com>: > @Hernan > Sending a message to an object using the inspector allows me to do: > self addMoprh: EllipseMorph new. > > But what I want is to add a morph to another morph that is already > instantiated. > Use the halos. In Windows is Alt+Shift+Left click over your morph. Then select the Menu halo (red) -> debug... -> explore morph HernÃ¡n

Feb. 7, 2015

Re: [Pharo-users] How to send messages to an object.

by Sean P. DeNigris

hernanmd wrote > Use the halos... select the Menu halo (red) -> debug... -> explore morph Yes, you can bring up an inspector/explorer on each morph, but the hiccup is how do you connect them i.e. send one as an argument to the other? ----- Cheers, Sean -- View this message in context: http://forum.world.st/How-to-send-messages-to-an-object-tp4804394p4804413.h… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Feb. 7, 2015

Spotter vs Spotlight was: [Re: Cleaning code completition's namespace]

by Tudor Girba

Hi, Thanks for the detail feedback. I provided some inlined answers and took the liberty of changing the thread subject. On Sat, Feb 7, 2015 at 4:58 PM, Laura Risani <laura.risani(a)gmail.com> wrote: > Hi Doru , > > On Fri, Feb 6, 2015 at 9:40 AM, Tudor Girba <tudor(a)tudorgirba.com> wrote: >> >> >> In the latest Pharo 4 Spotter works properly with the Dark Theme. >> > > Starting from a fresh image (downloaded this week), and doing nothing more > than setting the theme to Pharo 3 Dark, GTSpotter shows white, what is > curious because GTInspector and GTPlayground show dark. > As mentioned, please try with the latest Pharo. I just tried 40481. The problem is fixed. > Could you elaborate? Where do you see the difference? What do you mean by >>> "more direct"? >>> >> > I'll tell you what i think based exclusively on my personal preferences > (like the black theme) and not having tried the tool for very long, > probably there are additional customizations and features i ignore, so my > opinion won't be fully qualified. > I asked for your opinion and that is what I expect. No worries :) > For accessing+navigating the world menu, i like better a global > shortcut+the world menu itself, because, unlike Spotter, there is a visual > depiction of submenus that let you recognize them beforehand, and when you > type to navigate items stay at place so i don't have to visually rescan (to > me these qualities are directness ones). In addition, unlike Spotter , word > menu opens where the ponter is, so i could choose where to open it if i > wanted to. > Spotter is not a tool for accessing menus :). It simply also offers a way to access menus. > To quickly find and/or browse classes and msg implementations/senders is a > need i frequently face (many times i know the names and want a quick access > without "polluting" where i am), which can occur in two forms, with or > without context. > > In the contextual case (like browsing from within a class/method) the > tool i'm using provides me the browse facilities to address the need. > > In the uncontextual case, i have Spotlight and Spotter . > > Spotlight addresses the need directly in two steps 1Â° find the cls/msg > "name" 2Â°open a specialized (info+actions) browser on it in a regular > window (modal/movable/resizeable). > The model is a simple direct one-to-one mapping of what i want to do, > doesn't make me think how to do what i want to do. > This implies that all you want to do is look for a class or for a message. What about a pragma? Or a package? Or a previous script that you used in the Playground? Or global variables? Or a method inside a class? These deserve a way to be found as well, and Spotter is an interface for searching objects. > In contrast, from the perspective of that need, Spotter > -Doesn't search "names" (class names/selectors) but implementations, > overlaping the two actions of the need (when i olny hava a clue and i'm not > sure of the name i'm interesed into, i don't care for the list of > implementations, is obstrusive "garbage"). Forcing me to unnecessarily > think how to do what i want to do. In addition i find it hard to think > about the tool because i can't figure out a statement of purpose for it, > perhaps "global search for a name", but i'm not sure of "global" because it > doesn't do source code. > -Shows me "garbage" i have to mentally filter (world menu, packages, > pragmas, ... ). > I think you are misinterpreting the goal of Spotter. It is meant to provide a uniform interface to search all sorts of objects that you see interesting, and it even offers a cheap way to tweak its behavior to your needs. Here is a post that describes it in more details: http://www.humane-assessment.com/blog/introducing-gtspotter/ But, you raise an interesting debate on the difference between selectors and implementations. One problem with the MessageBrowser is that it does not allow me to search through the results. In Spotter, you type "do:" and then with Cmd+Shift+Right, you will get the possibility of searching through the results. But, let's take searching for selectors as an example of how to tweak Spotter to search for what you want. Install this method in your image and try searching with Spotter again. It's ugly, but it is working :): GTSpotter>>spotterSelectorsFor: aStep <spotterOrder: 0> | processor | processor := aStep listProcessor. processor title: 'Selectors'; filter: [ :originalQuery :stream | |query selectors | query := originalQuery trimBoth asLowercase. query isEmpty ifFalse: [ selectors := Set new. SystemNavigation default allBehaviorsDo: [:class | class selectorsDo:[ :selector | ((selectors includes: selector) not and: [ selector beginsWith: query ]) ifTrue: [ selectors add: selector. selectors size > 5 ifFalse: [ stream addObject: selector inProcessor: processor ]]]]. selectors ] ]; actLogic: [ :each | self systemNavigation browseAllImplementorsOf: each ] -Only shows me 5 (implementation) results at the time. > You can actually dive into those results and refine the search. If you press Cmd+Shift+RightArrow you will get all the results in the category. We know that this feature is not well offered and we will work on making it more obvious. In the meantime, please give it a try and let me know if it improves the situation. > - Its window misses the useful qualities of a regular one, which are in > many cases useful (sometimes i want to keep the list of > implementations/senders open). I don't understand the motivation of this > absence, why is better to not have/implement them than to do so? > Spotter is meant to first solve the problem of helping you find something and then get out of the way without having you manage the window. For this reason, its window is volatile. > Also i don't understand the motivation of its fixed size/position, i find > them annoying, a centered rectangle which impedes me to see anything else > and of a size which also makes me hard to read it contents and forces me to > scroll, and i "can't" do anything about it because it is fixed, seems a > warning sign. > What is a warning sign? > Spotlight opens on a corner giving me the choice of seeing something else > if i wanted to. > Given that Spotlight also does not offer a window, I understand that you do not object to the volatile window, but to the size, right? -Because it searches implementations instead of selectors it avoids > MessageBrowser which (to me) offers a much richer experience for browsing > impementations/senders (dual views, more info of implementations like its > package, more actions). > What do you mean by dual view? Do you mean the preview of sources? If yes, you should take the latest version of Pharo and take a look again. Here is a post that explains that part: http://www.humane-assessment.com/blog/boosting-gtspotter-with-preview/ I want to stress one more time that this is my personal opinion for myself, > and while i probably won't use the tool > I think you will :). > i think that Spotlight and Spotter should coexist as other tools do (like > Workspace and Playground) because one tool can't fit all > mindsets/preferences. > Sure. But, what makes you say they do not coexist (I did not see this argument above)? > Does anyone know why was Spotlight removed from distribution v4? > Because Spotter is meant to replace it and go beyond it. Cheers, Doru > > > >> Cheers, >> Doru >> >> > Thank you for being interested in my opinion. > Best, > Laura > -- www.tudorgirba.com "Every thing has its own flow"

Feb. 7, 2015

Re: [Pharo-users] How to send messages to an object.

by nacho

@Hernan Sending a message to an object using the inspector allows me to do: self addMoprh: EllipseMorph new. But what I want is to add a morph to another morph that is already instantiated. I want to reference the object that is somewhere in the memory an be able to manipulated even if I have not assigned it a reference | aMorph |. @Sean As I told you, your Self World is impressive. I see how easy is to do what I want in that Self World. I will take a look at MathMorphs, I think I've tried to make it work in Pharo but had no success. Thanks both of your for your answers Best Nacho ----- Nacho Smalltalker apprentice. Buenos Aires, Argentina. -- View this message in context: http://forum.world.st/How-to-send-messages-to-an-object-tp4804394p4804408.h… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Feb. 7, 2015

Re: [Pharo-users] How to send messages to an object.

by Sean P. DeNigris

nacho wrote > How do I achieve this? Two options: 1. (Unscalable hack) Identify them by a unique feature of their description e.g. "(World submorphs detect: [ :e | e color = Color blue ]) addMorph: (World submorphs detect: [ :e | e isKindOf: EllipseMorph ])" 2. Bring back a feature like that of MathMorphs [1, pg. 9], which had a revolutionary interface where, for each argument to a message, you drag an object token (a Morph) onto the message receiver, and then select the message via a context menu. I've been playing around with this and other ideas in my LivingCode project. In the screencast at https://www.youtube.com/watch?v=ejQh6wkII2Y, you can see a rough proof of concept - creating two tokens for your two Morphs, and then supplying the ellipse's token as an argument for the other Morph. [1] http://coweb.cc.gatech.edu:8888/squeakbook/uploads/tex-mathmorphs.pdf ----- Cheers, Sean -- View this message in context: http://forum.world.st/How-to-send-messages-to-an-object-tp4804394p4804407.h… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Feb. 7, 2015

Re: [Pharo-users] How to send messages to an object.

by HernÃ¡n Morales Durand

2015-02-07 17:46 GMT-03:00 nacho <0800nacho(a)gmail.com>: > Hi, > Suppose I do: > Morph new openInWorld > > and then: > EllipseMorph new openInWorld > > without referencing them to a variable. > How do I access those objects? > Morph new openInWorld inspect. Morph new openInWorld explore. or Morph new openInWorld right-click inspect, explore or debug in the opened window, you can use the lower text pane to send messages to the object. > Since the only thing I know is that is a "a Morph(428605440)" and a "an > EllipseMorph(448004096)" > If I want to Morph(428605440) addMorph: EllipseMorph(448004096) > How do I achieve this? > Because they are both object living in the system but I can not reference > them..... > Thanks in advance > Nacho > > > > > > ----- > Nacho > Smalltalker apprentice. > Buenos Aires, Argentina. > -- > View this message in context: > http://forum.world.st/How-to-send-messages-to-an-object-tp4804394.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

Feb. 7, 2015