Hello everybody, I'd like to scroll text like "credits" in a movie or in a videogame. I read the following example: http://cyphre.mysteria.cz/agg-demo-01.r but I didn't realize how it works and how to make the background transparent
I found this, but also title scroll... why? With omething Code: names: "long long list" view layout [ vh1 "Hello to:" nm: vtext names rate 1 feel [engage: func [face action event][ nm/para/scroll: nm/para/scroll + 0x-10 show face ]] ] also vh1 scroll...
I think the basic question is, how does one display a long item of text, too long to fit in a window, so that it automatically scrolls from top to bottom, slowly, without human intervention. Like the "less" command on the Amiga of days gone by, if that has any meaning. On a deeper level, in my opinion, is the question of the lost genius in undocumented code. If my understanding of the basic question is correct, I look at the two code samples, and I don't see how they work. Someone else did, because he wrote the code, but his information/insight/genius is gone because his code can't be understood. Remember that the above comments are coming from a REBOL beginner. Others may see it differently.
swhite, I thought you had worked out how a scroller works before. What you see is just a viewport on to a larger canvas or pane.
Yes, I did, I'm not complaining. I am discovering that one CAN teach an old dog new tricks, but the old dog just can't REMEMBER them. If I were the one trying to solve this problem, I would go back and refer to that prior question where I figured it out. Interestingly, I just checked my computer to see if I kept any samples or notes or commented code locally about that issue. It appears that while I talk a good line about documentation and so on, I don't practice what I preach.
Well, I solved adding para[], wihtout it all VID elements are in some way grouped. Code: names: "long long list" view layout [ vh1 "Hello to:" nm: vtext names font [valign: 'top] para [] rate 1 feel [engage: func [face action event][ nm/para/scroll: nm/para/scroll + 0x-10 show face ]] ] Now, my other problem is: how to preserve formatting? if names is like: Code: names: { Max V Graham swhite } any VID element tends to join the text this way Code: names: {Max V Graham swhite} It doesn't keep the newline, any suggestions?
Look at this: http://www.rebol.com/docs/view-face-content.html and then (when you absorbed it), these: http://www.rebol.com/docs/view-face-events.html http://www.rebol.com/how-to/feel.html
SOLVED!!! VID form text string deleting newlines, but after we can update the face/text attribute and no "removing newline" is applied, so: Code: names: { Max V Graham swhite } view layout [ vh1 "Hello to:" nm: vh1 "" 120x300 font [valign: 'top] para [] rate 2 feel [engage: func [face action event][ if face/text = "" [face/text: names] face/para/scroll: face/para/scroll + 0x-1 show nm ]] ]