World: r4wp
[Rebol School] REBOL School
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Henrik 30-Jun-2012 [502x3] | That is another attribute of VID, which is that many faces share the same font object. Update one, updates all font objects. The purpose of this is to save memory, but it comes off more as inconvenient, when doing things like this. |
Update one, updates all font objects. => "Update one, updates all faces." | |
You can copy the font object with something like this: label "boo" with [font: make font []] There are other ways to trigger copying the font object during the layout process, but I can't exactly remember how, right now. | |
Arnold 30-Jun-2012 [505] | If I could switch it from a text to a label it would be nice. As yet I have this puzzling experience: REBOL [] high-on: high-on-odd: false swap-even: func [/local n] [ either high-on [for n 2 8 2 [ panel-rechts/pane/:n/font/color: 'white] high-on: false ][ for n 1 7 2 [ panel-rechts/pane/:n/font/color: 'black] high-on: true ] show panel-rechts] swap-odd: func [/local n] [ either high-on-odd [for n 1 7 2 [panel-rechts/pane/:n/font/color: 'white panel-rechts/pane/:n/style: 'lbl-h-la-white] high-on-odd: false ][for n 1 7 2 [panel-rechts/pane/:n/font/color: 'black panel-rechts/pane/:n/style: 'lbl-h-la-normal] high-on-odd: true] show panel-rechts] spiegel-styles: stylize [ lbl-h-la-normal: text left middle 40x100 lbl-h-la-white: label left middle 40x100] view layout [styles spiegel-styles across panel-rechts: panel [below space 0x0 lbl-h-la-white "_" lbl-h-la-white "_" lbl-h-la-normal "_" lbl-h-la-normal "_" lbl-h-la-normal "_" lbl-h-la-normal "_" lbl-h-la-normal "_" lbl-h-la-normal "_"] return button "Even" [swap-even] button "Odd" [swap-odd] button "Debug" [print dump-face panel-rechts print panel-rechts/pane/1/font/color print panel-rechts/pane/1/color print panel-rechts/pane/1/style] ] Where the first two labels change when button Odd is clicked. and then stay unchanged and the debug button shows the changes as expected (by me) |
Henrik 30-Jun-2012 [506x3] | You can't simply switch the style by putting a new word in the STYLE facet. Each style is a prototype object with very different code to manage its internals. Generating a style using layout therefore involves getting a face from the style library, performing a set of operations on it for correct size and offset and run its initialization procedure. Only then is it inserted at the right localtion in the pane of the parent panel. |
(But otherwise, it would be handy, if you could just do that :-)) | |
You can study different styles using GET-STYLE. For example: probe get-style 'field It's a bit misleading, though, as many styles share the same code. To really see how styles are built, you need to read the sourcecode for VID. | |
Arnold 30-Jun-2012 [509x2] | That is now on the wish-list! |
When I name the labels lr1 thru lr8 and use the trick I found on www.pat665.free.fr/gtk/rebol-view.html which is w: to-word rejoin ["lr" n] (for n is 1, 2, 3 or 8 you get the picture.) and f: get :w f/font/color: white and directly show the label: show f I can set them seperately. But it is a bit ugly to do it like this if I may say so. | |
Sujoy 3-Jul-2012 [511x3] | Hi! Have a quick question: |
Hi! Have a quick question: | |
i have a block of objects: each object is constructed like... c: #object! [ name: "wonderwoman" attribs: [ Y1991: #object! [ a: 1 n: 2] Y1992: #object! [ a: 1 n: 2] ] ] i need to sort the series based on fields of the attribs inner object i dont want to create a new series...any ideas? | |
Maxim 3-Jul-2012 [514x2] | use the /compare refinement of sort (which can be a function). |
>> help sort USAGE: SORT series /case /skip size /compare comparator /part length /all /reverse DESCRIPTION: Sorts a series. SORT is an action value. ARGUMENTS: series -- (Type: series port) REFINEMENTS: /case -- Case sensitive sort. /skip -- Treat the series as records of fixed size. size -- Size of each record. (Type: integer) /compare -- Comparator offset, block or function. comparator -- (Type: integer block function) /part -- Sort only part of a series. length -- Length of series to sort. (Type: integer) /all -- Compare all fields /reverse -- Reverse sort order | |
Sujoy 3-Jul-2012 [516] | hi maxim! thanks - saw that in the docs, and also saw brett;s sort-object-series function on the mailing list not quite sure how it works with an inner object though |
Maxim 3-Jul-2012 [517] | the compare function should return true of false based on order of the two input arguments. |
Sujoy 3-Jul-2012 [518x2] | this works great for fields in a simple object series: sort-object-series: func [ series field ] [ sort/compare series func[a b][lesser? get in a field get in b field] ] |
am fumbling with the get in bit... | |
Maxim 3-Jul-2012 [520x2] | sf: func [a b][ a/attribs/Y1991/n > b/attribs/Y1991/n ] |
sort/compare series :sf | |
Sujoy 3-Jul-2012 [522] | that was stupid of me to miss! thanks! |
Maxim 3-Jul-2012 [523] | no, its so simple we often think that there is more to it :-) |
Sujoy 3-Jul-2012 [524x3] | :) |
can i introduce an additional complexity? what if i need to sort a hash? m: #hash! [key-a obj-a key-b obj-b] | |
sort/compare/skip series :sf 2 ?? | |
Maxim 3-Jul-2012 [527] | yep |
Sujoy 3-Jul-2012 [528] | cool! love rebol :) |
Maxim 3-Jul-2012 [529x2] | but if you need to sort with sf above (which uses obj data) then you also need to add the index within the skip. (because the obj is not the first item of the fields marked with /skip |
so it would be: sort/compare/skip/index series :sf 2 2 | |
Sujoy 3-Jul-2012 [531] | testing it now... |
Maxim 3-Jul-2012 [532x3] | doh... that's my old modified sort func... |
compare is used for the index and the func... hum. | |
I think you get blocks of fields when you use /compare with /skip | |
Sujoy 3-Jul-2012 [535x6] | >> blk: [1 [2 3] 0 [4 8] 5 [4 3]] >> sort/skip blk 1 == [0 [4 8] 1 [2 3] 5 [4 3]] |
sorry - that should read >> sort/skip blk 2 | |
ok - am failing with the test, probably because i specified the problem wrongly | |
h: #hash! [k-a object! [ name: "wonderwoman" attribs: make hash! ["1993-1994" #object! [ rebal-year: 1993 m: 160.018245 ] "1992-1993" #object! [ rebal-year: 1992 m: 104.293 ] "1991-1992" #object! [ rebal-year: 1991 m: 26.628 ]] ...and so on... | |
my keys - for both the main hash and the inner hash are strings | |
i need to sort the hash h by the m attribute of the attribs hash any ideas? would the same :sf work? | |
Maxim 3-Jul-2012 [541x3] | ok, so to get complete records, you need the /all refinement... |
>> sort/skip/compare/all [1 [2 "a"] 0 [4 "z"] 5 [4 "m"]] 2 func [a b][a/2/2 < b/2/2 ] == [1 [2 "a"] 5 [4 "m"] 0 [4 "z"]] | |
a, m, z are sorted. | |
Sujoy 3-Jul-2012 [544] | yup - that works... but would it work for the structure i posted? |
Maxim 3-Jul-2012 [545] | yes, you just need to adapt the paths you lookup. the sort func gets a pair of blocks which are the whole records, which is why I start with a /2 to get the second field, which is the block ... in your case, that would be the object |
Sujoy 3-Jul-2012 [546x3] | ok - thanks maxim trrying it now |
any luck with the new release of mod-web-api? | |
...and the json data structure? | |
Maxim 3-Jul-2012 [549] | the mod has been so heavily modified, its almost a complete rewrite. its also heavily embeded within our production environement (libs and stuff) so that making it a stand-alone mod again will take some time... some time which currently, I don't have. though note that we didin't actually add json support but greatly increased the flexibility of the i/o format conversion. |
Sujoy 3-Jul-2012 [550] | sounds great...since i'm a noob, not sure i can help, but will gladly pitch in |
Maxim 3-Jul-2012 [551] | we neededed to support, xml rest, SOAP and direct get/post interface to the same functions, and that is now working via a configuration, which allows you to tweak how the url is read and switch interfaces on the fly. |
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