legoEv3/ev3dev2/__pycache__/button.cpython-35.pyc
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__module__Ú __qualname__© r r ú0/usr/lib/python3/dist-packages/ev3dev2/button.pyr P s r c @ sÓ e Z d Z d Z e g ƒ Z d d „ Z e d d „ ƒ Z d d „ Z g d d „ Z
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ButtonBasez$
Abstract button interface.
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)Úselfr r r Ú__str__Z s zButtonBase.__str__c C s d S)zÝ
This handler is called by `process()` whenever state of any button has
changed since last `process()` call. `changed_buttons` is a list of
tuples of changed button names and their states.
Nr )Zchanged_buttonsr r r Ú on_change] s zButtonBase.on_changec C s
t | j ƒ S)z2
Checks if any button is pressed.
)ÚboolÚbuttons_pressed)r r r r Úanyf s zButtonBase.anyc C s t | j ƒ t | ƒ k S)zR
Check if currently pressed buttons exactly match the given list.
)Úsetr )r Úbuttonsr r r Ú
check_buttonsl s zButtonBase.check_buttonsc C s] d d „ t j ƒ Dƒ } x$ | D] } | j | j k r | Sq Wt d | | j f ƒ ‚ d S)z>
Return our corresponding evdev device object
c S s g | ] } t j | ƒ ‘ q Sr )r Z InputDevice)Ú.0Úfnr r r ú
<listcomp>w s z+ButtonBase.evdev_device.<locals>.<listcomp>z$%s: could not find evdev device '%s'N)r Z list_devicesÚnameÚevdev_device_nameÚ Exception)r ZdevicesZdevicer r r Ú evdev_devicer s
zButtonBase.evdev_deviceNc sµ ˆ d k r t | j ƒ ‰ | j } ˆ | _ ˆ j | ƒ } x= | D]5 } t | d | ƒ } | d k rC | | ˆ k ƒ qC W| j d k r± | r± | j ‡ f d d † | Dƒ ƒ d S)z–
Check for currenly pressed buttons. If the new state differs from the
old state, call the appropriate button event handlers.
NZon_c s" g | ] } | | ˆ k f ‘ q Sr r )r Úbutton)Ú new_stater r r ‘ s z&ButtonBase.process.<locals>.<listcomp>)r r Ú_stateÚsymmetric_differenceÚgetattrr )r r% Z old_stateZ
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zButtonBase.processc C s= x6 | j j ƒ D]% } | j t j j k r | j ƒ q Wd S)N)r# Ú read_loopÚtyper ÚecodesÚEV_KEYr) )r Úeventr r r Úprocess_forever“ s zButtonBase.process_foreverc C s
t ƒ ‚ d S)N)ÚNotImplementedError)r r r r r ˜ s zButtonBase.buttons_pressedc
C s t j ƒ } t | t ƒ r$ | g } t | t ƒ r< | g } xà | j j ƒ D]² } | j t j j k rL d } d } | j } x! | D] } | | k rƒ d } Pqƒ Wx! | D] } | | k r§ d } Pq§ W| rÔ | rÔ d S| d k rL t j ƒ | | d k rL d SqL Wd S)NTFiè )
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Wait for the button to be pressed down and then released.
Both actions must happen within timeout_ms.
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wait_for_bumpÄ s zButtonBase.wait_for_bump)r
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ButtonEVIOaV
Provides a generic button reading mechanism that works with event interface
and may be adapted to platform specific implementations.
This implementation depends on the availability of the EVIOCGKEY ioctl
to be able to read the button state buffer. See Linux kernel source
in /include/uapi/linux/input.h for details.
iÿ é é é é ÚEé c C s¯ t j | ƒ i | _ i | _ x‰ | j D]~ } | j | d } | d k r\ t d | ƒ ‚ | | j k r) t | d d ƒ | j | <t j d d g | j ƒ | j | <q) Wd S)Nr z-Button '%s' is not available on this platformÚrbr ÚB) r Ú__init__Ú _file_cacheÚ
_buffer_cacheÚ_buttonsr ÚopenÚarrayÚ KEY_BUF_LEN)r Úbr r r r rG ã s
zButtonEVIO.__init__c C s | j | S)N)rH )r r r r r Ú _button_fileò s zButtonEVIO._button_filec C s | j | S)N)rI )r r r r r Ú_button_bufferõ s zButtonEVIO._button_bufferc C s² x7 | j D], } t j | j | ƒ | j | j | ƒ q
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Returns list of names of pressed buttons.
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rI r ZioctlrO Ú EVIOCGKEYrJ Úitemsr r9 Úappend)r rN r5 ÚkÚvZbufZbitr r r r ø s *
&zButtonEVIO.buttons_pressedNé é l é )r
r r r; ZKEY_MAXr9 rM ÚordrR rJ rG rO rP r= r r r r r r> Ó s r> c @ s e Z d Z d Z d d e d d i d d e d d i d d e d d i d
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EVB Buttons
Úupr rQ ég Údownél Úleftéi Úrightéj Úenteré Ú backspacerB Nc C s
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Check if 'up' button is pressed.
r[ )r )r r r r r[ % s z Button.upc C s
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Check if 'down' button is pressed.
r] )r )r r r r r] , s z Button.downc C s
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Check if 'left' button is pressed.
r_ )r )r r r r r_ 3 s z Button.leftc C s
d | j k S)z5
Check if 'right' button is pressed.
ra )r )r r r r ra : s z Button.rightc C s
d | j k S)z5
Check if 'enter' button is pressed.
rc )r )r r r r rc A s z Button.enterc C s
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Check if 'backspace' button is pressed.
re )r )r r r r re H s zButton.backspace)r
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rJ r r! Zon_upZon_downZon_leftZon_rightZon_enterZ on_backspacer= r[ r] r_ ra rc re r r r r r s( )r r ) ÚsysÚ version_infoÚ SystemErrorrL r1 ZloggingÚ r r Z getLoggerr
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