World: r3wp
[View] discuss view related issues
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Dockimbel 21-Aug-2009 [9084] | Untested, but should work : i1: load %my-img.png i2: make image! 82x63 draw i2 [image i1 0x0 82x63] |
Pekr 21-Aug-2009 [9085] | thanks, will test ... |
Geomol 21-Aug-2009 [9086] | Pekr, if you use DRAW to resize it, the result will be anti-aliased, just using view and it won't. |
Pekr 21-Aug-2009 [9087x2] | works, thanks. I just wanted to test, how does REBOL resize. It is the same catastrophe as IE. Kudoz to FF ... |
Geomol - how do I do it using View? | |
Geomol 21-Aug-2009 [9089] | i2: to-image layout [image i1 82x63 effect [fit]] |
Henrik 21-Aug-2009 [9090] | DRAW allows upward bilinear filtering, but not downward. VIEW simply uses nearest neighbor. |
Pekr 21-Aug-2009 [9091] | What I need is smaller PNG, because SharePoint just sends original image to browser, instructing it to resize. IE is pretty much ugly, FF is OK. I tried in xnView, my friend in IrfanView, no matter what we do, we can't save so that it preserves transparent color ... |
Henrik 21-Aug-2009 [9092] | Forget using REBOL for that, if you want to preserve quality. |
Geomol 21-Aug-2009 [9093x3] | I'm not sure, if view preserves transparent!? |
I think, you can preseve transparent by making a separate image from the alpha channel, resizing rgb and alpha separately and combine them in the end to a final image. | |
(If it's a problem otherwize.) | |
amacleod 3-Sep-2009 [9096x2] | How much work is involved in getting linux view to work on the ARM processor? I see core running on ARM, Dec-Alfa, Sparc etc and even linux view runs on X86 and PPC. Does the graphics side of view need to deal with teh processor or does the OS its riding on take care of that part? I see some cheap UMPC's with touch screens that I would love to put my app on but they are ARM base and run CE or Linux.... |
It it just a matter of a recompile for that processor and OS? | |
james_nak 3-Sep-2009 [9098] | Does anyone know how to set the selected rows programatically within a text-list? |
Geomol 4-Sep-2009 [9099x2] | >> main: layout [tl: text-list data ["line 1" "line 2" "line 3"]] >> insert tl/picked "line 2" >> view main |
I look in the style and not the documentation, when finding out these things. Like: >> ? tl Then I notice picked. | |
james_nak 4-Sep-2009 [9101x2] | Geomol, thanks. It must be some weird user error because I thought I tried that and it didn't work. Thanks. |
Next question (sorry). I need to make a requestor a little more sophisticated than the default ones. I already have a main window opened. I need to open this requestor on top but wait for user input. I've fooled around with do-events and show-popup but not getting the needed behavior. | |
amacleod 4-Sep-2009 [9103x3] | try inform...its modal |
You can create basically any type of layout you need and it stays on top until user reacts to it... | |
Use hide-popup to close inform window | |
james_nak 5-Sep-2009 [9106] | Perfect. Thanks. |
amacleod 5-Sep-2009 [9107] | My only beef with inform is that It is not so easy to impliment a window without border or title bar...I'm sure its possible but I have not looked into it too deep... |
james_nak 5-Sep-2009 [9108] | That's true. Congratulations on your FDNY project. and speaking of window titles, Nick A wrote a nice script for changing titles in a windows environment: http://www.rebol.org/view-script.r?script=title-bar.r (unless you really like having "Rebol" in the title bar. |
Maxim 11-Sep-2009 [9109] | just discovered a nasty bug in view event handling... anyone found a way to solve the following: if you remove a face from a layout within the action of that face, its "away" engage feel gets stuck until you click on something... everytime you hover over something else, its away function is called even though its not even displayed in the view anymore! |
Henrik 12-Sep-2009 [9110] | I suppose one would ask in the away function about visibility, but I guess that doesn't stop the away function from being run. |
Maxim 12-Sep-2009 [9111] | exactly. |
Anton 12-Sep-2009 [9112] | I remember something like that. When you click down, the View system has to remember which face you clicked down on. In my DO-EVENT simulation, I called this face the "down-face". It remembers this face so that it can send subsequent "drag" (away/over) events to it, until the up event. Obviously it takes no account of whether the down-face is still in the layout or not. Pity, isn't it? |
Henrik 12-Sep-2009 [9113] | so why does it "unstick" when you click something? can that "unsticking" be simulated? |
Anton 12-Sep-2009 [9114x3] | Simple, a new "down-face" is set when you click down (so the old one is forgotten). |
I don't think it can be simulated. (You can try sending a fake 'down event to the engage, but I think I probably tried that.) The setting of the "down-face" happens in native code in DO EVENT somewhere. | |
Thankyou, closed source. | |
Maxim 12-Sep-2009 [9117] | I was about to try fiddling around in the vid sdk code to see if some context holds the face expecting the away events.. but your post sort of confirms that I won't find it :-( |
Henrik 12-Sep-2009 [9118] | anyhow, it should be RAMBO'ed, so others can see it as a known bug. |
Pekr 12-Sep-2009 [9119] | new down-face is set when you click down - just curious. What if you would like to do multi-selection? I mean - holding shift down, and selecting e.g. some list elements? You have to remember all down faces, no? |
Maxim 12-Sep-2009 [9120x2] | yes but not in the event system. |
what happens here is that a down event always expects (and creates) an up event ... but since the face is removed while in the handling of the down event it gets mixed up and this face gets stuck somewhere deep in the view core and it ends up with a reference to a face which isn't displayed anymore... so it tries to get that (away) event to trigger over and over . what I fear most is that the face will end up leaking RAM. but tests have not shown it to be the case so far. | |
Anton 14-Sep-2009 [9122] | A down event does not create an up event. You letting go of the mouse button creates the up event. |
Maxim 14-Sep-2009 [9123] | there is always an up event corresponding to the down event for a face you clicked on, even if the face is removed from you or you aren't releasing the mouse over it. there is also a move event triggered each time for some obscure reason. |
Anton 14-Sep-2009 [9124] | The reference to the "down-face" is probably stored by View in a single variable. When you click down again on another face, that reference is changed, so (I assume) there should be no problem. |
Maxim 14-Sep-2009 [9125] | exactly. |
Anton 14-Sep-2009 [9126x3] | If you don't release the mouse button, you don't get an up event. |
What you're saying is when the up event comes, it is sent to the engage of the face that was clicked down on, no matter where the mouse is now. | |
But anyway, just nitpicking. | |
Maxim 15-Sep-2009 [9129x2] | yes and it continues to send it away events every time you cross the boundry of a face ! |
anyone know a way to prevent text-list from picking more than one item with ctrl? | |
BenBran 23-Sep-2009 [9131] | I need some clairfication in reading the syntax/specs for Rebol2.x stuff. I'm sure there is a pattern, but I havn't seen it yet. Example: taken from rebol.net/wiki/VID:_Styles#Derived_styles_2 TEXT-LIST size: pair! rows: block! selected: block! ; this way set-face will not work. need to solve this. action: block! background: tuple! background-draw: block! how do I know when to assign a value to a [word] i.e. lo: [text-list size: 300x200] ;;does not work view layout lo and when not to use the [word] such as lo: [text-list 300x200] ;; works view layout lo Question 2. Could someone give a one line (short as possible) example of setting all the values for this text-list keyword using this format lo: [text-list ......] view layout lo thanks in advance. |
Henrik 23-Sep-2009 [9132] | The guide you are using is for VID3 for REBOL 3, which is no longer in use. |
Dockimbel 23-Sep-2009 [9133] | The documentation you've pointed to seems related to R3, not R2.x. There's no header info in that page, so just guessing. You'll find REBOL 2.x view documentation here : http://rebol.com/docs.html More precisely: http://rebol.com/docs/view-guide.html http://rebol.com/docs/easy-vid.html#section-14 (for TEXT-LIST examples) About your question, here's a more complete example (not sure that all possible options are there, thought) : lo: [text-list 300x200 yellow blue data ["one" "two" "three"] [print "action"]] view layout lo |
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