Re: mouse pan and zoom

[James R. V. Z. <jr...@co...>]

Ethan Merritt <merritt@u.washington.edu> writes:
>On Friday 17 July 2009, James R. Van Zandt wrote:
>> 
>> I've just checked in code to do "pan and zoom" with the mouse wheel.
>
>It works nicely here in x11, but doesn't do anything at all in wxt or
>in the new canvas or qt terminals.  I understand that extra javascript
>would be needed for the canvas,  but what is needed in order to support
>this for other interactive terminal types?

I only tested the x11 terminal, but I'm actually disappointed that
changes to the core code don't affect all the mouse-capable terminals.
It suggests there's something wrong with the way the code is factored.
However, I have no idea how the other terminals handle the mouse.
Does it work with the Windows terminal?

>Wouldn't it be logical to apply this in 3D also?

Good idea.

>It does not immediately strike me as useful to save the settings on the
>zoom stack.  Unlike a click-and-drag zoom operation, the inverse is easy
>to achieve by reversing the direction of the mouse wheel.

True.  As I wrote, it was easiest to implement it that way.
Separating the zooming and stacking functions looked messy (I wasn't
sure I followed all the logic) and I didn't convince myself that it
was worth the trouble.

      - Jim