[TxMt] (no subject)

[Brendan Dixon]

>> [...] Is there a keybinding or some other default I can set to  
>> make PageUp/Down actually move one page up/down based solely on  
>> the visible lines, not the location of the caret? (Move PageUp/ 
>> Down would then, either re-center the caret on the new page or  
>> place it at the same relative location.)
>>
>
> The default behavior is to move exactly one page up/down without  
> moving the caret (look at the scrollbar for the exact distance moved).
>
> You can change it e.g. to move the caret as well [1]. Could it be,  
> that you already changed this, but moved the movePageUp:/ 
> movePageDown: selectors? If so, you get a third behavior, where  
> caret will first move to the screen boundaries, and then move a page.
>
>
> [1] http://macromates.com/blog/archives/2005/07/05/key-bindings-for- 
> switchers/
>

I just verified my key bindings and they're at the defaults (e.g.,  
PageUp binds to pageUp:). I tried binding to movePageUp: just to  
verify. What I'm seeing is different than what you've described.  
Perhaps I've altered some other binding, but heck if I can find it.

As long as the caret is on the center line, I get the behavior you  
describe. If the caret is not on the center line then I get other  
behavior. For example, if display is showing lines 283-364 (so, 82  
lines per page), if the caret is on line 323 (the center) and I page  
up, the windows displays lines 201-282 (that is, it's move backward  
by 82 lines. However, if the caret is on line 360 (below center) and  
I page up, the window displays (roughly) lines 237-319 and the caret  
is on line 278. It's moving backward one page as measured from the  
caret location (360 - 82 = 278) and then making that line the center.  
The visual effect is a movement of more/less than a whole page  
depending on how far from center you are.

It seems that Xcode and TextMate do the same, while BBEdit moves a  
strict page up/down (perhaps leaving the caret outside of the visible  
window). If I could request something, what I would prefer is to  
always move exactly one page up/down based on the window size alone,  
regardless of where the caret is. If that leaves the caret outside  
the window, well, Ok. It'd be cool if the caret would land on the  
same relative position on the newly displayed page (e.g., if  
displaying 100-200 with caret on 175, a page down would display  
200-300 with caret on 275).

Is this making sense? Are there defaults or bindings I can change to  
obtain this effect?

Brendan Dixon
brendandixon at mac.com
425.922.8798


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.macromates.com/textmate/attachments/20070222/cfdbc037/attachment.html>