matplotlib-users

[Matplotlib-users] shortcut keys and right-click menu

[Vidar G. <vid...@37...>]

as an addition to the toolbar (or as an alternative for users who
want to turn it off), i think shortcut keys and a right-click
menu for the figure window would be a useful addition to mpl.

some suggested shortcut keys,
(ctrl+)s = save as...
z = zoom to rectangle
p = pan (and zoom)
alt+right arrow, backspace = back
alt+left arrow = forward
esc, ctrl+w = close figure window

we already have the neat f for fullscreen.

Re: [Matplotlib-users] shortcut keys and right-click menu

[Tim L. <ti...@cs...>]

On Thu, 13 Oct 2005, Vidar Gundersen <vid...@37...> wrote...

> 
> as an addition to the toolbar (or as an alternative for users who
> want to turn it off), i think shortcut keys and a right-click
> menu for the figure window would be a useful addition to mpl.

+1 on this idea.

Tim

> 
> some suggested shortcut keys,
> (ctrl+)s = save as...
> z = zoom to rectangle
> p = pan (and zoom)
> alt+right arrow, backspace = back
> alt+left arrow = forward
> esc, ctrl+w = close figure window
> 
> we already have the neat f for fullscreen.
> 
> 
> 
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Re: [Matplotlib-users] shortcut keys and right-click menu

[Erik C. <ec...@ke...>]

> some suggested shortcut keys,
> (ctrl+)s = save as...
> z = zoom to rectangle
> p = pan (and zoom)
> alt+right arrow, backspace = back
> alt+left arrow = forward
> esc, ctrl+w = close figure window
> 
> we already have the neat f for fullscreen.

That's a great idea!  If this were implemented, I'd like to see a set of
emacs-like key-bindings.  Heck, if someone points me to the right place in
the code, I'll do it myself.

E

Re: [Matplotlib-users] shortcut keys and right-click menu

[John H. <jdh...@ac...>]

>>>>> "Erik" == Erik Curiel <ec...@ke...> writes:

    >> some suggested shortcut keys, (ctrl+)s = save as...  z = zoom
    >> to rectangle p = pan (and zoom) alt+right arrow, backspace =
    >> back alt+left arrow = forward esc, ctrl+w = close figure window
    >> 
    >> we already have the neat f for fullscreen.

    Erik> That's a great idea!  If this were implemented, I'd like to
    Erik> see a set of emacs-like key-bindings.  Heck, if someone
    Erik> points me to the right place in the code, I'll do it myself.

Never one to turn down free help...

The code is lib/matplotlib/backend_bases.py in FigureManagerBase.key_press

    def key_press(self, event):

        # these bindings happen whether you are over an axes or not
        #if event.key == 'q':
        #    self.destroy() # how cruel to have to destroy oneself!
        #    return

        if event.key == 'f':
            self.full_screen_toggle()

        if event.inaxes is None:
            return

        # the mouse has to be over an axes to trigger these
        if event.key == 'g':
            event.inaxes.grid()
            self.canvas.draw()
        elif event.key == 'l':
            event.inaxes.toggle_log_lineary()
            self.canvas.draw()


Some events like 'f' are applicable anywhere in the figure and some
are only appropriate over and axes.  event.inaxes is the axes the
event occurs over, or none.

If you want to simulate clicking the toolbar, you need to call the
appropriate toolbar method.  The class NavigationToolbar2 is in the
same module, eg toolbar.home(), toolbar.press_zoom(event).  For funcs
that need an event, you should just be able to pass in the key event
you get in key_press.

You can access the toolbar as self.toolbar, where self is the
FigureManager instance.

Have fun!

JDH

Re: [Matplotlib-users] shortcut keys and right-click menu

[Charlie M. <cw...@gm...>]

In backend_bases.FigureManagerBase you can see how the
full_screen_toggle event is added and handled.  'f', 'l', and 'g' seem
reserved right now.

One note, I believe modifier keys aren't supported in a natural way
right now, so to catch "ctrl+s" for example could be a pain.  Just
pressing "ctrl" would generate an event.  All the modifiers states
would have to be maintained manually, I believe.

My two cents,
- Charlie

On 10/14/05, Erik Curiel <ec...@ke...> wrote:
>
> > some suggested shortcut keys,
> > (ctrl+)s =3D save as...
> > z =3D zoom to rectangle
> > p =3D pan (and zoom)
> > alt+right arrow, backspace =3D back
> > alt+left arrow =3D forward
> > esc, ctrl+w =3D close figure window
> >
> > we already have the neat f for fullscreen.
>
> That's a great idea!  If this were implemented, I'd like to see a set of
> emacs-like key-bindings.  Heck, if someone points me to the right place i=
n
> the code, I'll do it myself.
>
> E
>
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by:
> Power Architecture Resource Center: Free content, downloads, discussions,
> and more. http://solutions.newsforge.com/ibmarch.tmpl
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>

Re: [Matplotlib-users] shortcut keys and right-click menu

[John H. <jdh...@ac...>]

>>>>> "Charlie" == Charlie Moad <cw...@gm...> writes:

    Charlie> One note, I believe modifier keys aren't supported in a
    Charlie> natural way right now, so to catch "ctrl+s" for example
    Charlie> could be a pain.  Just pressing "ctrl" would generate an
    Charlie> event.  All the modifiers states would have to be
    Charlie> maintained manually, I believe.

Good point.  The first thing to be done is to add support for this in
the key event itself, by modifying FigureCanvasBase to track the state
of the modifier keys and add a modifier attr to the KeyEvent, so one
could do, eg

  if event.key=='left' and event.modifier=='alt':
     blah

Basically, you would want to add some state vars (_inalt, _inctrl,
_inshift) to FigureCanvasBase, and monitor event.key in
FigureCanvasBase.key_press_event and
FigureCanvasBase.key_release_event.  I would add a new kwarg to
KeyEvent like modifier=None that would be overrridden depending on the
_in* attrs.

Any takers on this one?

JDH

Re: [Matplotlib-users] shortcut keys and right-click menu

[John H. <jdh...@ac...>]

>>>>> "John" == John Hunter <jdh...@ac...> writes:

  if event.key=='left' and event.modifier=='alt':
     blah

That isn't the right approach, actually, because it doesn't support
multiple modifiers.  I think the better approach is to add attributes
alt, ctrl and shift which are booleans, eg one would do

  if event.alt and event.key=='x' :
     blah

or

  if event.alt and event.ctrl and event.key=='x' :
     blah

JDH