World: r3wp
[!RebGUI] A lightweight alternative to VID
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Ashley 25-Aug-2009 [8365x2] | I only get the 'load-stock error using the latest rebgui.r & "rebgui.r is doing something funny to VID" ... yes, it sure is. The guilty lines of code are in %ctx-rebgui.r: view*: system/view screen*: view*/screen-face screen*/color: screen*/edge: screen*/font: screen*/para: screen*/feel: none view*/VID: view*/popface-feel: view*/popface-feel-nobtn: view*/popface-feel-away: view*/popface-feel-away-nobtn: view*/popface-feel-win: view*/popface-feel-win-nobtn: view*/popface-feel-win-away: view*/popface-feel-win-away-nobtn: none There's a long explanation for this, but the short explanation is that previously RebGUI could co-exist with VID (and I was careful not to redefine existing VID words/functions), this made sense so long as RebGUI shared some of the same basic View/VID mezz code (in particular the popface-feel-* functions, hide-popup and show-popup). Once RebGUI v2 went down the path of using its own, simpler, popface code then the need to maintain "Chinese walls" between VID and RebGUI lessened ... and the option to reuse/redefine View's basic objects (instead of creating parallel RebGUI objects) made sense. Once I'd made the decision to cut with VID support it made other decisions like redefining standard VID requestors (alert, confirm, etc) a lot easier. RebGUI can now be developed without worrying about VID compatibility or "breaking" VID. |
Any suggestions for a replacement for the VID toggle? ... isn't the toggle just a drop-list less the drop component? It's a fairly trivial widget to add to RebGUI, but it's not a widget I've seen in any Windows or Mac apps. What do folks think about this widget from a UI POV? | |
Graham 25-Aug-2009 [8367x5] | I'm sure I've seen buttons that change their appearance ... to indicate two different states. |
I use them in a forever loop so that the user can start or stop People also use them for playing movies ... it changes from a start to a pause button. | |
Shame about breaking vid compatibility .. there were somethings I could not do in rebgui so I would switch to using ViD in the same application. | |
For instance I use VID to do a print preview ... using a draw dialect. Never tried it with rebgui | |
Yep, windows media player has a play button that toggles to a pause button. | |
Ashley 25-Aug-2009 [8372x2] | hence no further ability to mix VID with RebGUI ... correct. promise of much lower" memory requirements, but the opposite is true" ... not quite. A lot has been added, in particular 4 inline images, without noticeably increasing memory. Also remember that many of the improvements (reduced dependency on View/VID mezz code) will only be apparent when using RebGUI with enface/rebface (tour.r uses 13,817Kb under rebview here, and 11,223Kb under rebface). Lastly, reduced memory usage is not apparent with tour.r as it doesn't reuse a lot of the same widgets (i.e. tour.r is a good reflection of "base" memory usage not runtime memory usage). If I find the time I'll knock up an example that demonstrate runtime memory differences. |
looks like the current version of RebGUI is highly matured ... thanks, I hope to have an "official" release with updated docs by the end of September. | |
btiffin 25-Aug-2009 [8374] | THAT is very cool news. |
Graham 25-Aug-2009 [8375x3] | And toggle? |
I'd like to see an option to use a vertical layout for request-value | |
Enter the url for your website here. It looks like this http://www.rebol.com/ [ .......] is a pretty long requester. | |
Ashley 25-Aug-2009 [8378x2] | there were somethings I could not do in rebgui so I would switch to using ViD in the same application ... there shouldn't be any. Both VID are RebGUI are just "face factories" ... feed them a spec and they produce a face object. All other functionality is neither VID nor RebGUI specific. I get a lot of emails asking "how do I do x in RebGUI", but 99% of them are really "how do I do x in REBOL", or, "how do I use the SDK to do x" type questions. I use VID to do a print preview ... using a draw dialect ...RebGUI's use of the effect facet (and hence draw) is no different to VID's. Also note that 'draw is available as a native from the console (i.e. you don't event need VID or RebGUI to use it). |
And toggle? ... does it need to support more than two states? Does it need to support text (like a button) and images (like icon)? | |
Graham 25-Aug-2009 [8380x5] | Well, I personally don't use icons for buttons ... |
Just something like the VID toggle is fine for me. | |
different text and different colours for the buttons | |
more than two states is a rotary widget ... | |
BTW what's wrong with set-state [ block of widgets to disable ] ? | |
Ashley 25-Aug-2009 [8385x2] | Ah, I confused the toggle and rotary widgets. OK, I'll add toggle (text button version only). |
what's wrong with set-state [ block of widgets to disable ] ... do you really mean set-disable and set-enable? | |
Graham 25-Aug-2009 [8387] | could be .. the function that changes info |
Ashley 25-Aug-2009 [8388] | options [info] was replaced with set-disable and set-enable .. and you can specify disable like this as well: display "Test" [ field f: field disable field button "Off" [set-enable f] button "On" [set-disable f] ] |
Graham 25-Aug-2009 [8389] | I've been looking at the jqGrid ... http://www.trirand.com/jqgrid/jqgrid.html and many of these grids use a data source instead of a static block of data. |
Ashley 25-Aug-2009 [8390] | (see why I'm keen to redo the docs :) ) |
Graham 25-Aug-2009 [8391x5] | why not just ... set-enable f true/false |
with a data source you can let the pagination occur within the widget | |
And let the widget handle the "loading ..." indicators | |
What I do at present is use a tab-panel and have the loading gif in one, and then replace that panel with the table once the data arrives | |
Having pagination would really help a lot ... sometimes i have tables full of hundreds of items. | |
Ashley 25-Aug-2009 [8396] | why not just ... set-enable f true/false ... makes sense, I'll think on that one use a data source instead of a static block of data ... live data? |
Graham 25-Aug-2009 [8397] | sql query |
Ashley 25-Aug-2009 [8398] | What do you mean by pagination in the context of a table? |
Graham 25-Aug-2009 [8399x4] | say you have 1000 rows... but you only want to display 20 at a time |
having all the data inside the table at once means big slow down time | |
better to feed the table from a sql query, or another function that holds all the data | |
so you can use the scroller to move within the 20 items .. but not to scroll past them. You have to paginate to the next 20. | |
Ashley 25-Aug-2009 [8403] | The slow-down is from the query side not the RebGUI/table side. Table uses an iterator function so whether the table has 10 rows or 1,000,000 it should be the same speed ... fetching 10 rows or 1,000,000 across a network is another story. |
Graham 25-Aug-2009 [8404x4] | That's not my observation. |
Anyway, 20 rows will be faster than 40 right? | |
Anyway, scrolling thru 1M rows is impractical. | |
I presume altme uses an iterator function as well... I just switched from 1000 to 4000 in preferences and now scrolling is a dog. | |
Ashley 25-Aug-2009 [8408x3] | Try this on 10, 100 and 1,000 rows: d: copy [] loop 20 [insert tail d reduce [random 10 random 10]] s: now/time/precise display "A" [ table 20x100 options ["A" left .5 "B" left .5] data d ] print now/time/precise - s seems to scale pretty well here (on a Mac). |
(replace loop 20 with loop n) | |
Back to your request-value question, does the prompt for: request-value "Enter the url for your website here. It looks h t t p ://www.site.com" appear on 3 lines? If so, what would you enhancement request (vertical layout option) do? (not wrap the prompt and extend the field width to match prompt text width?) | |
Graham 25-Aug-2009 [8411x2] | the prompt doesn't wrap currently ... |
I'd just want an after 1 layout I think | |
Ashley 25-Aug-2009 [8413] | What build# are you running? |
Graham 25-Aug-2009 [8414] | I tried your latest |
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