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This module provides the NEWT Windowing toolkit API for Python
This is a lightweight text-mode windowing library, based on slang.
Classes:
- Widget
- Button
- CompactButton
- Checkbox
- SingleRadioButton
- Listbox
- Textbox
- TextboxReflowed
- Label
- Scale
- Entry
- Form
- Grid
- SnackScreen
- RadioGroup
- RadioBar
- ButtonBar
- GridFormHelp
- GridForm
- CheckboxTree
- Clistbox
Functions:
- ListboxChoiceWindow
- ButtonChoiceWindow
- EntryWindow
� )�absolute_import�print_function�unicode_literalsN)�
FLAG_DISABLED� FLAGS_SET� FLAGS_RESET� FLAGS_TOGGLE�FD_READ�FD_WRITE� FD_EXCEPT)���r )r r )r r )� r
)r
r �appendr c @ s" e Zd ZdZddd�Zdd� ZdS )�Widgetz�Base class for NEWT toolkit - Do not use directly
methods:
- Widget(self)
- setCallback(self, obj, data = None) :
The callback for when object activated.
data is passed to obj.
Nc C s$ |r| j �||� n | j �|� d S �N)�w� setCallback)�self�obj�data� r �+/usr/lib64/python3.9/site-packages/snack.pyr D s zWidget.setCallbackc C s t �d S r )�NotImplementedError�r r r r �__init__J s zWidget.__init__)N)�__name__�
__module__� __qualname__�__doc__r r r r r r r : s
r c @ s e Zd ZdZdd� ZdS )�ButtonzqBasic button class, takes button text as parameter
method:
- Button(self, text): returns a button
c C s t �|�| _d S r )�_snack�buttonr �r �textr r r r T s zButton.__init__N�r r r r r r r r r r M s r c @ s e Zd ZdZdd� ZdS )�
CompactButtonz�Compact Button class (less frilly button decoration).
methods:
- CompactButton(self,text) : create button, with text.
c C s t �|�| _d S r )r Z
compactbuttonr r" r r r r ^ s zCompactButton.__init__Nr$ r r r r r% W s r% c @ s: e Zd ZdZdd� Zdd� Zdd� Zdd � Zdd d �Zd
S )�Checkboxa� A checkbox.
methods:
- Checkbox(self, text, isOn = 0) : text, and boolean as to default value
- setValue(self) : set value
- value(self, value) : return checkbox value
- selected(self) : returns boolean
- setFlags(self, flag, sense) : set flags
flags: FLAG_DISABLED, FLAGS_SET, FLAGS_RESET
c C s | j jS r �r Z
checkboxValuer r r r �valuen s zCheckbox.valuec C s | j jdkS �Nr r' r r r r �selectedq s zCheckbox.selectedc C s | j �||�S r )r ZcheckboxSetFlags�r �flagZsenser r r �setFlagst s zCheckbox.setFlagsc C s | j �|�S r )r ZcheckboxSetValue)r r( r r r �setValuex s zCheckbox.setValuer c C s t �||�| _d S r )r Zcheckboxr )r r# �isOnr r r r { s zCheckbox.__init__N)r ) r r r r r( r* r- r. r r r r r r& a s r& c @ s" e Zd ZdZdd� Zddd�ZdS ) �SingleRadioButtonz�Single Radio Button.
methods:
- SingleRadioButton(text, group, isOn = 0) : create button
- selected(self) : returns bool, whether or not is selected.
c C s | j j| j jkS r )r �keyZ
radioValuer r r r r* � s zSingleRadioButton.selectedr c C s, |rt �||j|�| _nt �|d |�| _d S r )r Z radiobuttonr )r r# �groupr/ r r r r � s zSingleRadioButton.__init__N)r )r r r r r* r r r r r r0 ~ s r0 c @ sZ e Zd ZdZdd� Zdd� Zdd� Zdd � Zd
d � Zd d
� Z dd� Z
dd� Z ddd�Z dS )�Listboxa� Listbox class.
methods:
- Listbox(self, height, scroll = 0, returnExit = 0, width = 0, showCursor = 0, multiple = 0, border = 0)
- insert(self, text, item, before) : insert element; before = key to item to insert before, or None.
- delete(self, item) : delete item from list.
- replace(self, text,item) : Replace a given item's text
- current(self) : returns currently selected item
- getSelection(self) : returns a list of selected items
- setCurrent(self,i tem) : select current.
- clear(self) : clear listbox
c C s$ | j �|�}|| j|< || j|< d S r )r ZlistboxAddItem�key2item�item2key�r r# �itemr1 r r r r � s
zListbox.appendc C s@ |s| j �|d�}n| j �|| j| �}|| j|< || j|< d S r) )r �listboxInsertItemr5 r4 )r r# r7 �beforer1 r r r �insert� s
zListbox.insertc C s, | j �| j| � | j| j| = | j|= d S r )r �listboxDeleteItemr5 r4 �r r7 r r r �delete� s zListbox.deletec C sL | j �|| j| �}| j �| j| � | j| j| = || j|< || j|< d S r )r r8 r5 r; r4 r6 r r r �replace� s
zListbox.replacec C s | j | j�� S r )r4 r ZlistboxGetCurrentr r r r �current� s zListbox.currentc C s, g }| j �� }|D ]}|�| j| � q|S r )r ZlistboxGetSelectionr r4 �r Z selection�listr1 r r r � getSelection� s
zListbox.getSelectionc C s | j �| j| � d S r )r ZlistboxSetCurrentr5 r< r r r �
setCurrent� s zListbox.setCurrentc C s i | _ i | _| j�� d S r )r4 r5 r Z listboxClearr r r r �clear� s z
Listbox.clearr c C s6 t �||||||�| _i | _i | _|r2| j�|� d S r )r �listboxr r4 r5 ZlistboxSetWidth)r �height�scroll�
returnExit�widthZ
showCursorZmultipleZborderr r r r � s
zListbox.__init__N)r r r r r r )
r r r r r r: r= r> r? rB rC rD r r r r r r3 � s r3 c @ s* e Zd ZdZdd� Zdd� Zd
dd�Zd S ) �Textboxa Textbox, container for text.
methods:
- Textbox(self, width, height, scroll = 0, wrap = 0): scroll, wrap are flags
include scroll bars, or text wrap.
- setText(text) : set text.
- setHeight(height): set height.
c C s | j �|� d S r )r Z textboxTextr" r r r �setText� s zTextbox.setTextc C s | j �|� d S r )r Z
textboxHeight)r rF r r r � setHeight� s zTextbox.setHeightr c C s t �|||||�| _d S r )r Ztextboxr )r rI rF r# rG �wrapr r r r � s zTextbox.__init__N)r r )r r r r rK rL r r r r r rJ � s
rJ c @ s e Zd Zddd�ZdS )�TextboxReflowed� �
r c C sN t ||||�\}}}|dkr8||kr8t�| |||d� nt�| |||d� d S )Nr r
r )�reflowrJ r )r rI r# �flexDown�flexUp� maxHeightZnewtextrF r r r r � s zTextboxReflowed.__init__N)rO rP r )r r r r r r r r rN � s rN c @ s( e Zd ZdZdd� Zdd� Zdd� ZdS ) �Labelz�A Label (simple text).
methods:
- Label(self,text) : create label
- setText(self,text) : change text.
- setColors(self, colorset) : change individual colors
c C s | j �|� d S r )r Z labelTextr" r r r rK � s z
Label.setTextc C s t �|�| _d S r )r �labelr r" r r r r � s zLabel.__init__c C s | j �|� d S r )r ZlabelSetColors)r �colorsetr r r � setColors� s zLabel.setColorsN)r r r r rK r rX r r r r rU � s rU c @ s e Zd ZdZdd� Zdd� ZdS )�Scalez�A Scale (progress bar).
methods:
- Scale(self,width, total) : create scale; width: size on screen, fullamount: integer.
- set(self,amount) : set amount to integer.
c C s | j �|� d S r )r ZscaleSet)r �amountr r r �set s z Scale.setc C s t �||�| _d S r )r Zscaler )r rI �totalr r r r s zScale.__init__N)r r r r r[ r r r r r rY s rY c @ s4 e Zd ZdZdd� Zddd�Zdd� Zdd d �Zd
S )�Entrya Entry widget.
methods:
- Entry(self, width, text = "", hidden = 0, password = 0, scroll = 1, returnExit = 0)
constructor. hidden doesn't show text, password stars it out,
scroll includes scroll bars;
if returnExit is set, return from Form when exiting this element, else
proceed to next entry widget.
- value(self): return value.
- set(text, cursorAtEnd = 1) : set the text
- setFlags (flag, sense) : flags can be FLAG_DISABLED, FLAGS_SET, FLAGS_RESET, FLAGS_TOGGLE
c C s | j jS r )r Z
entryValuer r r r r( s z Entry.valuer
c C s | j �||�S r )r Z
entrySetValue)r r# Z cursorAtEndr r r r[ s z Entry.setc C s | j �||�S r )r Z
entrySetFlagsr+ r r r r- " s zEntry.setFlags� r c C s t �||||||�| _d S r )r �entryr )r rI r# Zhidden�passwordrG rH r r r r % s zEntry.__init__N)r
)r^ r r r
r )r r r r r( r[ r- r r r r r r] s
�r] � )ZF1ZF2ZF3ZF4ZF5ZF6ZF7ZF8ZF9ZF10ZF11ZF12ZESCZENTERZSUSPENDZ BACKSPACEZDELETEZINSERTZRESIZEra c C s g | ]}t |�|f�qS r )�ord)�.0�cr r r �
<listcomp>7 � re c @ sR e Zd ZdZdd� Zdd� Zdd� Zdd � Zdd d �Zd
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S )�Forma� Base Form class, from which Grid, etc. inherit
methods:
- Form(self, helpArg = None) : constructor.
- addHotKey(self, keyname) : keynames of form "F1" through "F12", "ESC"
- add(self, widget) : Add a widget
- run(self): run a form, expecting input
- draw(self): draw form.
- setTimer(self, timer) : add a timer
- watchFile(self, file, flags) : watch a named file
- setCurrent (self, co): Set a given widget as the current focus
c C s | j �t| � d S r )r Z addhotkey�hotkeys�r Zkeynamer r r � addHotKeyI s zForm.addHotKeyc C sp d|j v r$|j�� D ]}| �|� qd|j v rF|jD ]}| �|� q4n&d|j v rl|| j|jj< | j�|j�S d S )Nrh � gridmembersr ) �__dict__rh �keysrj rk �add�transr r1 )r �widgetr1 r r r r rn L s
zForm.addc C sb | j �� \}}|tjkr"| j| S |tjkr0dS |tjkrD| j| S |tjkrVt | S t
d��d S )NZTIMERzEOF or IO error) r �runr ZFORM_EXIT_WIDGETro ZFORM_EXIT_TIMERZFORM_EXIT_FDREADY�filemapZFORM_EXIT_HOTKEYrh � RuntimeError)r �what�whichr r r rq Y s
zForm.runc C s | j �� d S r )r �drawr r r r rv e s
z Form.drawNc C s" i | _ i | _t�|�| _|| _d S r )ro rr r �formr �helpArg)r rx r r r r i s z
Form.__init__c C s | j �|j � d S r )r Z
setcurrent�r �cor r r rC p s zForm.setCurrentc C s | j �|� d S r )r Zsettimer)r Ztimerr r r �setTimers s z
Form.setTimerc C s$ || j |�� < | j�|�� |� d S r )rr �filenor Zwatchfd)r �file�flagsr r r � watchFilev s zForm.watchFile)N) r r r r rj rn rq rv r rC r{ r r r r r rg ; s
rg c @ s* e Zd ZdZdd� Zd dd�Zdd � Zd
S ) �Griday Grid class.
methods:
- place(self,x,y): Return what is placed at (x,y)
- setField(self, what, col, row, padding = (0, 0, 0, 0),
anchorLeft = 0, anchorTop = 0, anchorRight = 0,
anchorBottom = 0, growx = 0, growy = 0):
used to add widget 'what' to grid.
- Grid(self, *args): eg. g = Grid(2,3) for 2x3 grid
c C s | j �||�S r )�g�place�r �x�yr r r r� � s z
Grid.place�r r r r r c
C s� | j �|� d} |r tj} n
|r&tj} |r6| tjB } n|rD| tjB } d} | rRtj} |
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rk r r Z ANCHOR_LEFTZ ANCHOR_RIGHTZ
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r rt �col�row�padding�
anchorLeft� anchorTop� anchorRight� anchorBottom�growx�growyZ anchorFlagsZ gridFlagsr r r �setField� s(
�z
Grid.setFieldc G s t j|� | _g | _d S r )r �gridr� rk )r �argsr r r r � s z
Grid.__init__N)r� r r r r r r )r r r r r� r� r r r r r r� z s �
r� )ZROOTZBORDERZWINDOWZSHADOWZTITLEZBUTTONZ ACTBUTTONZCHECKBOXZ ACTCHECKBOXZENTRYZLABELZLISTBOXZ
ACTLISTBOXZTEXTBOXZ
ACTTEXTBOXZHELPLINEZROOTTEXTZ
EMPTYSCALEZ FULLSCALEZDISENTRYZ
COMPACTBUTTONZ
ACTSELLISTBOXZ
SELLISTBOXc @ s� e Zd ZdZdd� Zdd� Zdd� Zdd � Zd
d � Zd d
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dd� Z dd� Z dd� Z
dd� Zdd� Zd%dd �Zd&d d �Zd d!� Zd"d#� ZdS )'� SnackScreena
A Screen;
methods:
- Screen(self) : constructor
- finish(self)
- resume(self)
- suspend(self)
- doHelpCallback(self,arg) call callback with arg
- helpCallback(self,cb): Set help callback
- suspendcallback(self,cb, data=None) : set callback. data=data to pass to cb.
- openWindow(self,left, top, width, height, title): Open a window.
- pushHelpLine(self,text): put help line on screen. Returns current help line if text=None
- setColor(self, colorset, fg, bg): Set foreground and background colors;
colorset = key from snack.colorsets,
fg & bg = english color names defined by S-Lang
(ref: S-Lang Library C Programmer's Guide section:
8.4.4. Setting Character Attributes)
c C s& t �� t �� \| _| _| �d � d S r )r �init�sizerI rF � pushHelpLiner r r r r � s zSnackScreen.__init__c C s t �� S r )r �finishr r r r r� � s zSnackScreen.finishc C s t �� d S r )r �resumer r r r r� � s zSnackScreen.resumec C s t �� d S r )r �suspendr r r r r� � s zSnackScreen.suspendc C s | � | |� d S r )�helpCb)r �argr r r �doHelpCallback� s zSnackScreen.doHelpCallbackc C s || _ t�| j�S r )r� r Z helpcallbackr� )r �cbr r r � helpCallback� s zSnackScreen.helpCallbackNc C s |rt �||�S t �|�S r )r Zsuspendcallback)r r� r r r r �suspendCallback� s zSnackScreen.suspendCallbackc C s t �|||||�S r )r Z
openwindow)r �left�toprI rF �titler r r �
openWindow� s zSnackScreen.openWindowc C s |st �d�S t �|�S d S )Nz *default*)r Z pushhelpliner" r r r r� � s
zSnackScreen.pushHelpLinec C s t �� S r )r Z pophelpliner r r r � popHelpLine� s zSnackScreen.popHelpLinec C s t �|||�S r )r Z drawroottext)r r� r� r# r r r � drawRootText� s zSnackScreen.drawRootTextc C s t �|||�S r )r Zcenteredwindow)r rI rF r� r r r �centeredWindow� s zSnackScreen.centeredWindowc C s( |r|rt �|j|||�S t �|j|�S r )r Zgridwrappedwindowr� )r r� r� r� r� r r r �gridWrappedWindow s z SnackScreen.gridWrappedWindowTc C s |r t �� S t �� S r )r Z popwindowZpopwindownorefresh)r �refreshr r r � popWindow s zSnackScreen.popWindowc C s t �� S r )r r� r r r r r� s zSnackScreen.refreshc C s, |t v rt�t | ||�S t�|||�S d S r )� colorsetsr Zsetcolor)r rW Zfg�bgr r r �setColor s zSnackScreen.setColor)N)NN)T)r r r r r r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r r r r r� � s"
r� rO c C s t �| |||�S )zR returns a tuple of the wrapped text, the actual width, and the actual height
)r rQ )r# rI rR rS r r r rQ s rQ c @ s* e Zd ZdZdd� Zd dd�Zdd� ZdS )
�
RadioGroupz� Combo widget: Group of Radio buttons
methods:
- RadioGroup(self): constructor.
- add(self,title, value, default = None): add a button. Returns button.
- getSelection(self) : returns value of selected button | None
c C s d | _ g | _d S r )�prev�
buttonlistr r r r r % s zRadioGroup.__init__Nc C s: | j s|d krd}t|| j |�}|| _ | j�||f� |S �Nr
)r� r0 r� r )r r� r( �default�br r r rn ) s zRadioGroup.addc C s$ | j D ]\}}|�� r| S qd S r )r� r* )r r� r( r r r rB 3 s zRadioGroup.getSelection)N)r r r r r rn rB r r r r r� s
r� c @ s e Zd ZdZdd� Zdd� ZdS )�RadioBarz� Bar of Radio buttons, based on Grid.
methods:
- RadioBar(self, screen, buttonlist) : constructor.
- getSelection(self): return value of selected button
c C sz g | _ d| _t� | _t�| dt|�� |D ]J\}}}| j�|||�}| j �||f� | j |d| jdd� | jd | _q*d S )Nr r
�r� )
rA r7 r� r2 r� r �lenrn r r� )r �screenr� r� r( r� r� r r r r B s zRadioBar.__init__c C s
| j �� S r )r2 rB r r r r rB M s zRadioBar.getSelectionN)r r r r r rB r r r r r� 9 s r� c @ s" e Zd ZdZddd�Zdd� ZdS ) � ButtonBara Bar of buttons, based on grid.
methods:
- ButtonBar(screen, buttonlist,buttonlist, compact = 0):
- buttonPressed(self, result): Takes the widget returned by Form.run and looks to see
if it was one of the widgets in the ButtonBar.
r c C s� g | _ i | _d| _t�| t|�d� |D ]�}t|tjdkr>t nt
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zButtonBar.__init__c C s8 || j v r| j | S | jD ]\}}||kr| S qd S r )rh rA )r �resultr! r( r r r �
buttonPresseds s
zButtonBar.buttonPressedN)r )r r r r r r� r r r r r� S s
r� c @ sh e Zd ZdZdd� Zddd�Zdd d
�Zd d � Zd
d� Zddd�Z d dd�Z
dd� Z dd� Z dd� Z
dS ) � GridFormHelpa= Subclass of Grid, for the help form text.
methods:
- GridFormHelp(self, screen, title, help, *args) :
- add (self, widget, col, row, padding = (0, 0, 0, 0),
anchorLeft = 0, anchorTop = 0, anchorRight = 0,
anchorBottom = 0, growx = 0, growy = 0):
- runOnce(self, x = None, y = None): pop up the help window
- addHotKey(self, keyname):
- setTimer(self, keyname):
- create(self, x = None, y = None):
- run(self, x = None, y = None):
- draw(self):
- runPopup(self):
- setCurrent (self, co):
c G sJ || _ || _t|�| _g | _d| _t|�}| g|d d�< tjt |�� d S r) )
r� r� rg rw � childList� form_createdrA r� r �tuple)r r� r� �helpr� r r r r � s
zGridFormHelp.__init__r� r c C s, | � ||||||||| |
�
| j�|� d S r )r� r� r ) r rp r� r� r� r� r� r� r� r� r� r r r rn � s
�zGridFormHelp.addNc C s | � ||�}| j�� |S r )rq r� r� )r r� r� r� r r r �runOnce� s
zGridFormHelp.runOncec C s | j �|� d S r )rw rj ri r r r rj � s zGridFormHelp.addHotKeyc C s | j �|� d S r )rw r{ ri r r r r{ � s zGridFormHelp.setTimerc C sH | j sD| �dd� | jD ]}| j�|� q| j�| | j||� d| _ d S r� )r� r� r� rw rn r� r� r� )r r� r� �childr r r �create� s
zGridFormHelp.createc C s | � ||� | j�� S r )r� rw rq r� r r r rq � s zGridFormHelp.runc C s | � � | j�� S r )r� rw rv r r r r rv � s zGridFormHelp.drawc C s0 | � � | j�| | j� | j�� }| j�� |S r )r� r� r� r� rw rq r� )r r� r r r �runPopup� s
zGridFormHelp.runPopupc C s | j �|� d S r )rw rC ry r r r rC � s zGridFormHelp.setCurrent)r� r r r r r r )NN)NN)NN)r r r r r rn r� rj r{ r� rq rv r� rC r r r r r� } s
�
r� c @ s e Zd ZdZdd� ZdS )�GridFormzh GridForm class (extends GridFormHelp):
methods:
- GridForm(self, screen, title, *args):
c G s | ||d f| }t j|� d S r )r� r )r r� r� r� Zmyargsr r r r � s zGridForm.__init__Nr$ r r r r r� � s r� c @ s` e Zd ZdZddd�Zddd�Zdd � Zdd
d �Zd d
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ddd�Z dd� Z dS )� CheckboxTreea� CheckboxTree combo widget,
methods:
- CheckboxTree(self, height, scroll = 0, width = None, hide_checkbox = 0, unselectable = 0)
constructor.
- append(self, text, item = None, selected = 0):
- addItem(self, text, path, item = None, selected = 0):
- getCurrent(self):
- getSelection(self):
- setEntry(self, item, text):
- setCurrent(self, item):
- setEntryValue(self, item, selected = 1):
- getEntryValue(self, item):
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