Re: [Tuxpaint-devel] Shortcut ([Del] key) for quick access to a small eraser

[Bill K. <nb...@so...>]

On Wed, Sep 28, 2022 at 09:24:02PM -0400, Mark K. Kim wrote:
> Hi Bill,
> 
> On Wed, Sep 28, 2022 at 5:13 AM Bill Kendrick <nb...@so...> wrote:
> 
> > So, if you notice any glitches,
> > please let me know ASAP so I can try to address them.
> >
> 
> 1. The erase operation doesn't start until the delete key and the primary
> mouse button are both pressed.  My instinct is to expect the mouse cursor
> to change the moment the delete key is pressed to signal that the function
> of the primary button on the mouse has changed from "draw" to "erase".

I don't disagree.  I'm just a little fearful of tacking too much more
on in here.  :-)  It would also need to be done for the [Ctrl]+click
for the pipette tool, for consistency, IMO.


> 2. The erase operation doesn't stop if the mouse is moving quickly even
> after both the delete key and the primary mouse button are both released.
> This can go on indefinitely as far as I can tell as long as the mouse
> continues to move quickly.

Hrm, it should exit on SDL_MOUSEBUTTONUP, but perhaps if you move very
quickly some of the events get lost.  I'm unable to replicate this,
though.  (And I was REALLY going nuts with my mouse :) )

Also, the function will also exit when you press [Esc]
(SDL_KEYDOWN with SDLK_ESCAPE).


> 3. Using the "delete" key to erase on the Mac will be confusing and
> difficult.  Confusing because the key labeled "delete" on the Mac keyboard
> is actually where the backspace key is on the PC keyboard and works like
> the backspace key.  And difficult because triggering the scancode
> equivalent to PC's delete on the Mac keyboard, which lacks the extended
> keys on the default out-of-the-box keyboard, involves pressing and holding
> down simultaneously the Fn key on the bottom-left of the keyboard and
> pressing the delete key on the top-right of the keyboard, which is a two
> handed operation for most people.  Therefore holding down the "delete key"
> and using the mouse simultaneously is a three-handed operation on the Mac!
> :D

Hah!  Whoops, rookie mistake!  Sorry!

Okay, so I'm going to restrict this feature such that it does not work
_at all_ while using the Text or Label tool, and am using the [X] key,
instead of [Del].

QWERTY, QWERTZ, and AZERTY all have "X".  However, ÄWERTY, and sometimes
ĄŽERTY, do not have "X".  It's a bit of a rabbit hole.

Any problems with this plan, does anyone think?


-- 
-bill!
Sent from my computer