New subject: [Pharo-dev] ctrl+a is seen as ctrl+home windows

15 May 2015

      forward to vm-dev
2015-05-14 21:34 GMT+02:00 Nicolai Hess nicolaihess@web.de:
...
I added an issue:
15541 https://pharo.fogbugz.com/default.asp?15541 windows vm does not
distinguish between ctrl+a and ctrl+home
with a proposed solution:
add $a-1 to the utf32Code field of the event struct, if the keyevent is a
keystroke and the ctrl flag is set
what do you think?
this happens on squeak (vm: Win32 built on Aug 22 2013 10:20:54 Compiler:
3.4.4 ) too.
But the eventbuffer is different:
pharo ctrl+a/ctrl+home both report:
#(2 TIMESTAMP 1 0 2 1 0 1)
squeak ctrl+a/ctrl+home both report:
#(2 TIMESTAMP 1 0 8 97 0 1)
...
2014-06-30 9:31 GMT+02:00 Guillermo Polito guillermopolito@gmail.com:
...
There is an end key in many keyboards, but some others do not have it.
Can you (or better, How would you) have ctrl+end in keyboards that doesn't?
Some VMs hardcoded that Ctrl+a = ctrl+home and Ctrl+d = Ctrl+end because
that's how old terminals work... Now, why have hardcoded ctrl+a = ctrl +
home, if you can just add a keybinding to ctrl + a?
On Mon, Jun 30, 2014 at 8:55 AM, Nicolai Hess nicolaihess@web.de wrote:
...
2014-06-29 16:34 GMT+02:00 Denis Kudriashov dionisiydk@gmail.com:
Hi
...
hasSpecialCTRLKeyValue was extracted by me when I hack keybindings to
make ctrl+home and ctrl+end working. Like you I was very surprised by such
keyboard events crappy state.
So, having ctrl+end and ctrl+d working at the same time is not possible?
...
2014-06-25 11:22 GMT+04:00 Nicolai Hess nicolaihess@web.de:
2014-06-25 8:58 GMT+02:00 Guillermo Polito guillermopolito@gmail.com:
...
There is a problem in the whole keyboard events: they treat keys as
...
characters and vice versa. And that's not always true:

the backspace key is a key, but currently the image interprets it

as a character because we only use keypress events in general.

the shift key is a key, and since current image does not use keyup

nor keydown, we cannot know if JUST a shift is pressed normally.
On Wed, Jun 25, 2014 at 8:53 AM, Sven Van Caekenberghe sven@stfx.eu
wrote:
> I don't know anything about event handling, but I once had a look at
> Character constants, and found this:
>
> Character class>>#home
>   ^ self value: 1
>
> How about that ?? This is wrong IMHO, ASCII / Unicode value 1 is SOH
> (Start of header), sometimes typed as CTRL-A. And there are other strange
> constants like that there.
>
> On 25 Jun 2014, at 08:42, Tudor Girba tudor@tudorgirba.com wrote:
>
> > Hi,
> >
> > I am on Windows, using Pharo 3.0, and I am trying to get the
> keybindings to work in Rubric using Windows convention (so, Ctrl instead of
> Cmd as a modifier),
> >
> > It worked reasonably well, but the problem is that somehow Ctrl+a
> is mapped to Ctrl+Home. The problem is not specific to Rubric as I can
> detect the same behavior in the regular PluggableTextMorph.
> >
> > Does anyone have an idea of where the problem comes from?
> >
> > Doru
> >
> >
> >
> > --
> > www.tudorgirba.com
> >
> > "Every thing has its own flow"
>
>
>
ctrl+a has the same strange behavior as ctrl+d
ctrl+a -> ctrl+home
ctrl+d -> ctrl+end
look at KeyboardEvent>>#hasSpecialCTRLKeyValue
I am not exactly sure why it is handled that way.
Replace the method with
hasSpecialCTRLKeyValue
    ^ self controlKeyPressed and: [ keyValue <= 26 ]
now, ctr+a and ctr+d working as expected.
But I don't know about the side-effects.
nicolai

Re: [Pharo-dev] ctrl+a is seen as ctrl+home windows