# The second section contains convenience classes that amalgamate
# the literal classes and make them more object-oriented.
+"""
+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
+"""
+
+
+from __future__ import absolute_import, print_function, unicode_literals
import _snack
+import string
+import sys
+
+from _snack import FLAG_DISABLED, FLAGS_SET, FLAGS_RESET, FLAGS_TOGGLE, FD_READ, FD_WRITE, FD_EXCEPT
+
+LEFT = (-1, 0)
+DOWN = (-1, -1)
+CENTER = (0, 0)
+UP = (1, 1)
+RIGHT = (1, 0)
+
+snackArgs = {"append":-1}
class Widget:
- pass
+ """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.
+ """
+ def setCallback(self, obj, data = None):
+ if data:
+ self.w.setCallback(obj, data)
+ else:
+ self.w.setCallback(obj)
+
+ def __init__(self):
+ raise NotImplementedError
class Button(Widget):
+ """Basic button class, takes button text as parameter
+
+ method:
+ - Button(self, text): returns a button
+ """
def __init__(self, text):
- self.w = _snack.button(text)
+ self.w = _snack.button(text)
+
+class CompactButton(Widget):
+ """Compact Button class (less frilly button decoration).
+
+ methods:
+
+ - CompactButton(self,text) : create button, with text.
+ """
+ def __init__(self, text):
+ self.w = _snack.compactbutton(text)
class Checkbox(Widget):
+ """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
+ """
def value(self):
- return self.w.checkboxValue
+ return self.w.checkboxValue
def selected(self):
- return self.w.checkboxValue != 0
+ return self.w.checkboxValue != 0
+
+ def setFlags (self, flag, sense):
+
+ return self.w.checkboxSetFlags(flag, sense)
+
+ def setValue (self, value):
+ return self.w.checkboxSetValue(value)
def __init__(self, text, isOn = 0):
- self.w = _snack.checkbox(text, isOn)
+ self.w = _snack.checkbox(text, isOn)
class SingleRadioButton(Widget):
+ """Single Radio Button.
+ methods:
+
+ - SingleRadioButton(text, group, isOn = 0) : create button
+ - selected(self) : returns bool, whether or not is selected.
+ """
+
def selected(self):
- return self.w.key == self.w.radioValue;
+ return self.w.key == self.w.radioValue;
def __init__(self, text, group, isOn = 0):
- if group:
- self.w = _snack.radiobutton(text, group.w, isOn)
- else:
- self.w = _snack.radiobutton(text, None, isOn)
+ if group:
+ self.w = _snack.radiobutton(text, group.w, isOn)
+ else:
+ self.w = _snack.radiobutton(text, None, isOn)
class Listbox(Widget):
-
+ """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
+ """
+
def append(self, text, item):
- key = self.w.listboxAddItem(text)
- self.key2item[key] = item
- self.item2key[item] = key
+ key = self.w.listboxAddItem(text)
+ self.key2item[key] = item
+ self.item2key[item] = key
def insert(self, text, item, before):
- if (not before):
- key = self.w.listboxInsertItem(text, 0)
- else:
- key = self.w.listboxInsertItem(text, self.item2key[before])
- self.key2item[key] = item
- self.item2key[item] = key
+ if (not before):
+ key = self.w.listboxInsertItem(text, 0)
+ else:
+ key = self.w.listboxInsertItem(text, self.item2key[before])
+ self.key2item[key] = item
+ self.item2key[item] = key
def delete(self, item):
- self.w.listboxDeleteItem(self.item2key[item])
- del self.key2item[self.item2key[item]]
- del self.item2key[item]
+ self.w.listboxDeleteItem(self.item2key[item])
+ del self.key2item[self.item2key[item]]
+ del self.item2key[item]
def replace(self, text, item):
- key = self.w.listboxInsertItem(text, self.item2key[item])
- self.w.listboxDeleteItem(self.item2key[item])
- del self.key2item[self.item2key[item]]
- self.item2key[item] = key
- self.key2item[key] = item
+ key = self.w.listboxInsertItem(text, self.item2key[item])
+ self.w.listboxDeleteItem(self.item2key[item])
+ del self.key2item[self.item2key[item]]
+ self.item2key[item] = key
+ self.key2item[key] = item
def current(self):
- return self.key2item[self.w.listboxGetCurrent()]
+ return self.key2item[self.w.listboxGetCurrent()]
- def __init__(self, height, scroll = 0, returnExit = 0, width = 0):
- self.w = _snack.listbox(height, scroll, returnExit)
- self.key2item = {}
- self.item2key = {}
- if (width):
- self.w.listboxSetWidth(width)
+ def getSelection(self):
+ selection = []
+ list = self.w.listboxGetSelection()
+ for key in list:
+ selection.append(self.key2item[key])
+ return selection
+
+ def setCurrent(self, item):
+ self.w.listboxSetCurrent(self.item2key[item])
+
+ def clear(self):
+ self.key2item = {}
+ self.item2key = {}
+ self.w.listboxClear()
+
+ def __init__(self, height, scroll = 0, returnExit = 0, width = 0, showCursor = 0, multiple = 0, border = 0):
+ self.w = _snack.listbox(height, scroll, returnExit, showCursor, multiple, border)
+ self.key2item = {}
+ self.item2key = {}
+ if (width):
+ self.w.listboxSetWidth(width)
class Textbox(Widget):
+ """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.
+ """
+
+ def setText(self, text):
+ self.w.textboxText(text)
- def __init__(self, width, height, text, scroll = 0):
- self.w = _snack.textbox(width, height, text, scroll)
+ def setHeight(self, height):
+ self.w.textboxHeight(height)
+
+ def __init__(self, width, height, text, scroll = 0, wrap = 0):
+ self.w = _snack.textbox(width, height, text, scroll, wrap)
+
+class TextboxReflowed(Textbox):
+
+ def __init__(self, width, text, flexDown = 5, flexUp = 10, maxHeight = -1):
+ (newtext, width, height) = reflow(text, width, flexDown, flexUp)
+ if maxHeight != -1 and height > maxHeight:
+ Textbox.__init__(self, width, maxHeight, newtext, 1)
+ else:
+ Textbox.__init__(self, width, height, newtext, 0)
class Label(Widget):
+ """A Label (simple text).
+
+ methods:
+
+ - Label(self,text) : create label
+ - setText(self,text) : change text.
+ - setColors(self, colorset) : change individual colors
+ """
+ def setText(self, text):
+ self.w.labelText(text)
def __init__(self, text):
- self.w = _snack.label(text)
+ self.w = _snack.label(text)
-class Entry(Widget):
+ def setColors(self, colorset):
+ self.w.labelSetColors(colorset)
+
+class Scale(Widget):
+ """A Scale (progress bar).
+
+ methods:
+
+ - Scale(self,width, total) : create scale; width: size on screen, fullamount: integer.
+ - set(self,amount) : set amount to integer.
+ """
+ def set(self, amount):
+ self.w.scaleSet(amount)
+
+ def __init__(self, width, total):
+ self.w = _snack.scale(width, total)
+class Entry(Widget):
+ """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
+ """
def value(self):
- return self.w.entryValue
+ return self.w.entryValue
+
+ def set(self, text, cursorAtEnd = 1):
+ return self.w.entrySetValue(text, cursorAtEnd)
- def set(self, text):
- return self.w.entrySetValue(text)
+ def setFlags (self, flag, sense):
+ return self.w.entrySetFlags(flag, sense)
- def __init__(self, width, text = "", hidden = 0, scroll = 1):
- self.w = _snack.entry(width, text, hidden, scroll)
+ def __init__(self, width, text = "", hidden = 0, password = 0, scroll = 1,
+ returnExit = 0):
+ self.w = _snack.entry(width, text, hidden, password, scroll, returnExit)
# Form uses hotkeys
"F4" : _snack.KEY_F4, "F5" : _snack.KEY_F5, "F6" : _snack.KEY_F6,
"F7" : _snack.KEY_F7, "F8" : _snack.KEY_F8, "F9" : _snack.KEY_F9,
"F10" : _snack.KEY_F10, "F11" : _snack.KEY_F11,
- "F12" : _snack.KEY_F12 }
+ "F12" : _snack.KEY_F12, "ESC" : _snack.KEY_ESC,
+ "ENTER": _snack.KEY_ENTER, "SUSPEND" : _snack.KEY_SUSPEND,
+ "BACKSPACE": _snack.KEY_BACKSPACE, "DELETE": _snack.KEY_DELETE,
+ "INSERT": _snack.KEY_INSERT, "RESIZE": _snack.KEY_RESIZE,
+ " " : ord(" ") }
-for n in hotkeys.keys():
+for n in list(hotkeys.keys()):
hotkeys[hotkeys[n]] = n
+for o,c in [ (ord(c),c) for c in string.ascii_letters+string.digits ]:
+ hotkeys[c] = o
+ hotkeys[o] = c
class Form:
-
+ """ 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
+ """
def addHotKey(self, keyname):
- self.w.addhotkey(hotkeys[keyname])
+ self.w.addhotkey(hotkeys[keyname])
def add(self, widget):
- if widget.__dict__.has_key('hotkeys'):
- for key in widget.hotkeys.keys():
- self.addHotKey(key)
-
- if widget.__dict__.has_key('gridmembers'):
- for w in widget.gridmembers:
- self.add(w)
- elif widget.__dict__.has_key('w'):
- self.trans[widget.w.key] = widget
- return self.w.add(widget.w)
- return None
+ if 'hotkeys' in widget.__dict__:
+ for key in widget.hotkeys.keys():
+ self.addHotKey(key)
+
+ if 'gridmembers' in widget.__dict__:
+ for w in widget.gridmembers:
+ self.add(w)
+ elif 'w' in widget.__dict__:
+ self.trans[widget.w.key] = widget
+ return self.w.add(widget.w)
+ return None
def run(self):
- (what, which) = self.w.run()
- if (what == _snack.FORM_EXIT_WIDGET):
- return self.trans[which]
-
- return hotkeys[which]
-
- def __init__(self):
- self.trans = {}
- self.w = _snack.form()
+ (what, which) = self.w.run()
+ if (what == _snack.FORM_EXIT_WIDGET):
+ return self.trans[which]
+ elif (what == _snack.FORM_EXIT_TIMER):
+ return "TIMER"
+ elif (what == _snack.FORM_EXIT_FDREADY):
+ return self.filemap[which]
+ elif (what == _snack.FORM_EXIT_HOTKEY):
+ return hotkeys[which]
+ raise RuntimeError("EOF or IO error")
+
+ def draw(self):
+ self.w.draw()
+ return None
+
+ def __init__(self, helpArg = None):
+ self.trans = {}
+ self.filemap = {}
+ self.w = _snack.form(helpArg)
+ # we do the reference count for the helpArg in python! gross
+ self.helpArg = helpArg
+
+ def setCurrent (self, co):
+ self.w.setcurrent (co.w)
+
+ def setTimer (self, timer):
+ self.w.settimer (timer)
+
+ def watchFile (self, file, flags):
+ self.filemap[file.fileno()] = file
+ self.w.watchfd (file.fileno(), flags)
class Grid:
+ """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
+ """
def place(self, x, y):
- return self.g.place(x, y)
+ return self.g.place(x, y)
def setField(self, what, col, row, padding = (0, 0, 0, 0),
- anchorLeft = 0, anchorTop = 0, anchorRight = 0,
- anchorBottom = 0, growx = 0, growy = 0):
- self.gridmembers.append(what)
- anchorFlags = 0
- if (anchorLeft):
- anchorFlags = _snack.ANCHOR_LEFT
- elif (anchorRight):
- anchorFlags = _snack.ANCHOR_RIGHT
-
- if (anchorTop):
- anchorFlags = anchorFlags | _snack.ANCHOR_TOP
- elif (anchorBottom):
- anchorFlags = anchorFlags | _snack.ANCHOR_BOTTOM
-
- gridFlags = 0
- if (growx):
- gridFlags = _snack.GRID_GROWX
- if (growy):
- gridFlags = gridFlags | _snack.GRID_GROWY
-
- if (what.__dict__.has_key('g')):
- return self.g.setfield(col, row, what.g, padding, anchorFlags,
- gridFlags)
- else:
- return self.g.setfield(col, row, what.w, padding, anchorFlags)
-
+ anchorLeft = 0, anchorTop = 0, anchorRight = 0,
+ anchorBottom = 0, growx = 0, growy = 0):
+ self.gridmembers.append(what)
+ anchorFlags = 0
+ if (anchorLeft):
+ anchorFlags = _snack.ANCHOR_LEFT
+ elif (anchorRight):
+ anchorFlags = _snack.ANCHOR_RIGHT
+
+ if (anchorTop):
+ anchorFlags = anchorFlags | _snack.ANCHOR_TOP
+ elif (anchorBottom):
+ anchorFlags = anchorFlags | _snack.ANCHOR_BOTTOM
+
+ gridFlags = 0
+ if (growx):
+ gridFlags = _snack.GRID_GROWX
+ if (growy):
+ gridFlags = gridFlags | _snack.GRID_GROWY
+
+ if 'g' in what.__dict__:
+ return self.g.setfield(col, row, what.g, padding, anchorFlags,
+ gridFlags)
+ else:
+ return self.g.setfield(col, row, what.w, padding, anchorFlags)
+
def __init__(self, *args):
- self.g = apply(_snack.grid, args)
- self.gridmembers = []
+ self.g = _snack.grid(*args)
+ self.gridmembers = []
+
+colorsets = { "ROOT" : _snack.COLORSET_ROOT,
+ "BORDER" : _snack.COLORSET_BORDER,
+ "WINDOW" : _snack.COLORSET_WINDOW,
+ "SHADOW" : _snack.COLORSET_SHADOW,
+ "TITLE" : _snack.COLORSET_TITLE,
+ "BUTTON" : _snack.COLORSET_BUTTON,
+ "ACTBUTTON" : _snack.COLORSET_ACTBUTTON,
+ "CHECKBOX" : _snack.COLORSET_CHECKBOX,
+ "ACTCHECKBOX" : _snack.COLORSET_ACTCHECKBOX,
+ "ENTRY" : _snack.COLORSET_ENTRY,
+ "LABEL" : _snack.COLORSET_LABEL,
+ "LISTBOX" : _snack.COLORSET_LISTBOX,
+ "ACTLISTBOX" : _snack.COLORSET_ACTLISTBOX,
+ "TEXTBOX" : _snack.COLORSET_TEXTBOX,
+ "ACTTEXTBOX" : _snack.COLORSET_ACTTEXTBOX,
+ "HELPLINE" : _snack.COLORSET_HELPLINE,
+ "ROOTTEXT" : _snack.COLORSET_ROOTTEXT,
+ "EMPTYSCALE" : _snack.COLORSET_EMPTYSCALE,
+ "FULLSCALE" : _snack.COLORSET_FULLSCALE,
+ "DISENTRY" : _snack.COLORSET_DISENTRY,
+ "COMPACTBUTTON" : _snack.COLORSET_COMPACTBUTTON,
+ "ACTSELLISTBOX" : _snack.COLORSET_ACTSELLISTBOX,
+ "SELLISTBOX" : _snack.COLORSET_SELLISTBOX }
class SnackScreen:
-
+ """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)
+ """
def __init__(self):
- _snack.init()
- (self.width, self.height) = _snack.size()
- self.pushHelpLine(None)
+ _snack.init()
+ (self.width, self.height) = _snack.size()
+ self.pushHelpLine(None)
def finish(self):
- return _snack.finish()
+ return _snack.finish()
+
+ def resume(self):
+ _snack.resume()
+
+ def suspend(self):
+ _snack.suspend()
+
+ def doHelpCallback(self, arg):
+ self.helpCb(self, arg)
+
+ def helpCallback(self, cb):
+ self.helpCb = cb
+ return _snack.helpcallback(self.doHelpCallback)
+
+ def suspendCallback(self, cb, data = None):
+ if data:
+ return _snack.suspendcallback(cb, data)
+ return _snack.suspendcallback(cb)
def openWindow(self, left, top, width, height, title):
- return _snack.openwindow(left, top, width, height, title)
+ return _snack.openwindow(left, top, width, height, title)
def pushHelpLine(self, text):
- if (not text):
- return _snack.pushhelpline("*default*")
- else:
- return _snack.pushhelpline(text)
+ if (not text):
+ return _snack.pushhelpline("*default*")
+ else:
+ return _snack.pushhelpline(text)
def popHelpLine(self):
- return _snack.pophelpline()
+ return _snack.pophelpline()
def drawRootText(self, left, top, text):
- return _snack.drawroottext(left, top, text)
+ return _snack.drawroottext(left, top, text)
def centeredWindow(self, width, height, title):
- return _snack.centeredwindow(width, height, title)
+ return _snack.centeredwindow(width, height, title)
- def gridWrappedWindow(self, grid, title):
- return _snack.gridwrappedwindow(grid.g, title)
+ def gridWrappedWindow(self, grid, title, x = None, y = None):
+ if x and y:
+ return _snack.gridwrappedwindow(grid.g, title, x, y)
- def popWindow(self):
- return _snack.popwindow()
+ return _snack.gridwrappedwindow(grid.g, title)
+
+ def popWindow(self, refresh = True):
+ if refresh:
+ return _snack.popwindow()
+ return _snack.popwindownorefresh()
def refresh(self):
- return _snack.refresh()
+ return _snack.refresh()
+
+ def setColor(self, colorset, fg, bg):
+ if colorset in colorsets:
+ return _snack.setcolor(colorsets[colorset], fg, bg)
+ else:
+ # assume colorset is an integer for the custom color set
+ return _snack.setcolor(colorset, fg, bg)
-# returns a tuple of the wrapped text, the actual width, and the actual height
def reflow(text, width, flexDown = 5, flexUp = 5):
+ """ returns a tuple of the wrapped text, the actual width, and the actual height
+ """
return _snack.reflow(text, width, flexDown, flexUp)
-
# combo widgets
class RadioGroup(Widget):
+ """ 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
+ """
def __init__(self):
- self.prev = None
- self.buttonlist = []
+ self.prev = None
+ self.buttonlist = []
def add(self, title, value, default = None):
- if not self.prev and default == None:
- # If the first element is not explicitly set to
- # not be the default, make it be the default
- default = 1
- b = SingleRadioButton(title, self.prev, default)
- self.prev = b
- self.buttonlist.append((b, value))
- return b
+ if not self.prev and default == None:
+ # If the first element is not explicitly set to
+ # not be the default, make it be the default
+ default = 1
+ b = SingleRadioButton(title, self.prev, default)
+ self.prev = b
+ self.buttonlist.append((b, value))
+ return b
def getSelection(self):
- for (b, value) in self.buttonlist:
- if b.selected(): return value
- return None
+ for (b, value) in self.buttonlist:
+ if b.selected(): return value
+ return None
class RadioBar(Grid):
+ """ Bar of Radio buttons, based on Grid.
+
+ methods:
+
+ - RadioBar(self, screen, buttonlist) : constructor.
+ - getSelection(self): return value of selected button
+ """
def __init__(self, screen, buttonlist):
- self.list = []
- self.item = 0
- self.group = RadioGroup()
- Grid.__init__(self, 1, len(buttonlist))
- for (title, value, default) in buttonlist:
- b = self.group.add(title, value, default)
- self.list.append(b, value)
- self.setField(b, 0, self.item, anchorLeft = 1)
- self.item = self.item + 1
+ self.list = []
+ self.item = 0
+ self.group = RadioGroup()
+ Grid.__init__(self, 1, len(buttonlist))
+ for (title, value, default) in buttonlist:
+ b = self.group.add(title, value, default)
+ self.list.append((b, value))
+ self.setField(b, 0, self.item, anchorLeft = 1)
+ self.item = self.item + 1
def getSelection(self):
- return self.group.getSelection()
-
+ return self.group.getSelection()
+
# you normally want to pack a ButtonBar with growx = 1
class ButtonBar(Grid):
-
- def __init__(self, screen, buttonlist):
- self.list = []
- self.hotkeys = {}
- self.item = 0
- Grid.__init__(self, len(buttonlist), 1)
- for blist in buttonlist:
- if len(blist) == 2:
- (title, value) = blist
- else:
- (title, value, hotkey) = blist
- self.hotkeys[hotkey] = value
- b = Button(title)
- self.list.append(b, value)
- self.setField(b, self.item, 0, (1, 0, 1, 0))
- self.item = self.item + 1
-
- def buttonPressed(self, result):
- """Takes the widget returned by Form.run and looks to see
- if it was one of the widgets in the ButtonBar."""
-
- if self.hotkeys.has_key(result):
- return self.hotkeys[result]
-
- for (button, value) in self.list:
- if result == button:
- return value
- return None
-
-
-class GridForm(Grid):
-
- def __init__(self, screen, title, *args):
- self.screen = screen
- self.title = title
- self.form = Form()
- self.childList = []
- self.form_created = 0
- args = list(args)
- args[:0] = [self]
- apply(Grid.__init__, tuple(args))
+ """ 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.
+ """
+ def __init__(self, screen, buttonlist, compact = 0):
+ self.list = []
+ self.hotkeys = {}
+ self.item = 0
+ Grid.__init__(self, len(buttonlist), 1)
+ for blist in buttonlist:
+ if isinstance(blist, str if sys.version >= '3' else basestring):
+ title = blist
+ value = blist.lower()
+ elif len(blist) == 2:
+ (title, value) = blist
+ else:
+ (title, value, hotkey) = blist
+ self.hotkeys[hotkey] = value
+
+ if compact:
+ b = CompactButton(title)
+ else:
+ b = Button(title)
+ self.list.append((b, value))
+ self.setField(b, self.item, 0, (1, 0, 1, 0))
+ self.item = self.item + 1
+
+ def buttonPressed(self, result):
+ if result in self.hotkeys:
+ return self.hotkeys[result]
+
+ for (button, value) in self.list:
+ if result == button:
+ return value
+ return None
+
+
+class GridFormHelp(Grid):
+ """ 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):
+ """
+ def __init__(self, screen, title, help, *args):
+ self.screen = screen
+ self.title = title
+ self.form = Form(help)
+ self.childList = []
+ self.form_created = 0
+ args = list(args)
+ args[:0] = [self]
+ Grid.__init__(*tuple(args))
def add(self, widget, col, row, padding = (0, 0, 0, 0),
anchorLeft = 0, anchorTop = 0, anchorRight = 0,
anchorBottom = 0, growx = 0, growy = 0):
- self.setField(widget, col, row, padding, anchorLeft,
- anchorTop, anchorRight, anchorBottom,
- growx, growy);
- self.childList.append(widget)
+ self.setField(widget, col, row, padding, anchorLeft,
+ anchorTop, anchorRight, anchorBottom,
+ growx, growy);
+ self.childList.append(widget)
- def run_once(self):
- result = self.run()
- self.screen.popWindow()
- return result
+ def runOnce(self, x = None, y = None):
+ result = self.run(x, y)
+ self.screen.popWindow()
+ return result
- def run(self):
- if not self.form_created:
- self.place(1,1)
- for child in self.childList:
- self.form.add(child)
- self.screen.gridWrappedWindow(self, self.title)
- self.form_created = 1
- return self.form.run()
-
+ def addHotKey(self, keyname):
+ self.form.addHotKey(keyname)
+
+ def setTimer(self, keyname):
+ self.form.setTimer(keyname)
+
+ def create(self, x = None, y = None):
+ if not self.form_created:
+ self.place(1,1)
+ for child in self.childList:
+ self.form.add(child)
+ self.screen.gridWrappedWindow(self, self.title, x, y)
+ self.form_created = 1
+
+ def run(self, x = None, y = None):
+ self.create(x, y)
+ return self.form.run()
+
+ def draw(self):
+ self.create()
+ return self.form.draw()
+
+ def runPopup(self):
+ self.create()
+ self.screen.gridWrappedWindow(self, self.title)
+ result = self.form.run()
+ self.screen.popWindow()
+ return result
+
+ def setCurrent (self, co):
+ self.form.setCurrent (co)
+
+class GridForm(GridFormHelp):
+ """ GridForm class (extends GridFormHelp):
+
+ methods:
+
+ - GridForm(self, screen, title, *args):
+ """
+ def __init__(self, screen, title, *args):
+ myargs = (self, screen, title, None) + args
+ GridFormHelp.__init__(*myargs)
+
+class CheckboxTree(Widget):
+ """ 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):
+ """
+ def append(self, text, item = None, selected = 0):
+ self.addItem(text, (snackArgs['append'], ), item, selected)
+
+ def addItem(self, text, path, item = None, selected = 0):
+ if item is None:
+ item = text
+ key = self.w.checkboxtreeAddItem(text, path, selected)
+ self.key2item[key] = item
+ self.item2key[item] = key
+
+ def getCurrent(self):
+ curr = self.w.checkboxtreeGetCurrent()
+ return self.key2item[curr]
+
+ def __init__(self, height, scroll = 0, width = None, hide_checkbox = 0, unselectable = 0):
+ self.w = _snack.checkboxtree(height, scroll, hide_checkbox, unselectable)
+ self.key2item = {}
+ self.item2key = {}
+ if (width):
+ self.w.checkboxtreeSetWidth(width)
+
+ def getSelection(self):
+ selection = []
+ list = self.w.checkboxtreeGetSelection()
+ for key in list:
+ selection.append(self.key2item[key])
+ return selection
+
+ def setEntry(self, item, text):
+ self.w.checkboxtreeSetEntry(self.item2key[item], text)
+
+ def setCurrent(self, item):
+ self.w.checkboxtreeSetCurrent(self.item2key[item])
+
+ def setEntryValue(self, item, selected = 1):
+ self.w.checkboxtreeSetEntryValue(self.item2key[item], selected)
+
+ def getEntryValue(self, item):
+ return self.w.checkboxtreeGetEntryValue(self.item2key[item])
+
+def ListboxChoiceWindow(screen, title, text, items,
+ buttons = ('Ok', 'Cancel'),
+ width = 40, scroll = 0, height = -1, default = None,
+ help = None):
+ """
+ - ListboxChoiceWindow(screen, title, text, items,
+ buttons = ('Ok', 'Cancel'),
+ width = 40, scroll = 0, height = -1, default = None,
+ help = None):
+ """
+ if (height == -1): height = len(items)
+
+ bb = ButtonBar(screen, buttons)
+ t = TextboxReflowed(width, text)
+ l = Listbox(height, scroll = scroll, returnExit = 1)
+ count = 0
+ for item in items:
+ if type(item) == tuple:
+ (text, key) = item
+ else:
+ text = item
+ key = count
+
+ if (default == count):
+ default = key
+ elif (default == item):
+ default = key
+
+ l.append(text, key)
+ count = count + 1
+
+ if (default != None):
+ l.setCurrent (default)
+
+ g = GridFormHelp(screen, title, help, 1, 3)
+ g.add(t, 0, 0)
+ g.add(l, 0, 1, padding = (0, 1, 0, 1))
+ g.add(bb, 0, 2, growx = 1)
+
+ rc = g.runOnce()
+
+ return (bb.buttonPressed(rc), l.current())
+
+def ButtonChoiceWindow(screen, title, text,
+ buttons = [ 'Ok', 'Cancel' ],
+ width = 40, x = None, y = None, help = None):
+ """
+ - ButtonChoiceWindow(screen, title, text,
+ buttons = [ 'Ok', 'Cancel' ],
+ width = 40, x = None, y = None, help = None):
+ """
+ bb = ButtonBar(screen, buttons)
+ t = TextboxReflowed(width, text, maxHeight = screen.height - 12)
+
+ g = GridFormHelp(screen, title, help, 1, 2)
+ g.add(t, 0, 0, padding = (0, 0, 0, 1))
+ g.add(bb, 0, 1, growx = 1)
+ return bb.buttonPressed(g.runOnce(x, y))
+
+def EntryWindow(screen, title, text, prompts, allowCancel = 1, width = 40,
+ entryWidth = 20, buttons = [ 'Ok', 'Cancel' ], help = None):
+ """
+ EntryWindow(screen, title, text, prompts, allowCancel = 1, width = 40,
+ entryWidth = 20, buttons = [ 'Ok', 'Cancel' ], help = None):
+ """
+ bb = ButtonBar(screen, buttons);
+ t = TextboxReflowed(width, text)
+
+ count = 0
+ for n in prompts:
+ count = count + 1
+
+ sg = Grid(2, count)
+
+ count = 0
+ entryList = []
+ for n in prompts:
+ if type(n) == tuple:
+ (n, e) = n
+ if isinstance(e, str if sys.version >= '3' else basestring):
+ e = Entry(entryWidth, e)
+ else:
+ e = Entry(entryWidth)
+
+ sg.setField(Label(n), 0, count, padding = (0, 0, 1, 0), anchorLeft = 1)
+ sg.setField(e, 1, count, anchorLeft = 1)
+ count = count + 1
+ entryList.append(e)
+
+ g = GridFormHelp(screen, title, help, 1, 3)
+
+ g.add(t, 0, 0, padding = (0, 0, 0, 1))
+ g.add(sg, 0, 1, padding = (0, 0, 0, 1))
+ g.add(bb, 0, 2, growx = 1)
+
+ result = g.runOnce()
+
+ entryValues = []
+ count = 0
+ for n in prompts:
+ entryValues.append(entryList[count].value())
+ count = count + 1
+
+ return (bb.buttonPressed(result), tuple(entryValues))
+
+class CListbox(Grid):
+ """Clistbox convenience class.
+
+ methods:
+
+ - Clistbox(self, height, cols, cols_widths, scroll = 0) : constructor
+ - colFormText(self, col_text, align = None, adjust_width = 0) : column text.
+ - append(self, col_text, item, col_text_align = None) :
+ - insert(self, col_text, item, before, col_text_align = None)
+ - delete(self, item)
+ - replace(self, col_text, item, col_text_align = None)
+ - current(self) : returns current item
+ - setCurrent(self, item): sets an item as current
+ - clear(self): clear the listbox
+
+ Alignments may be LEFT, RIGHT, CENTER, None
+ """
+ def __init__(self, height, cols, col_widths, scroll = 0,
+ returnExit = 0, width = 0, col_pad = 1,
+ col_text_align = None, col_labels = None,
+ col_label_align = None, adjust_width=0):
+
+ self.cols = cols
+ self.col_widths = col_widths[:]
+ self.col_pad = col_pad
+ self.col_text_align = col_text_align
+
+ if col_labels != None:
+ Grid.__init__(self, 1, 2)
+ box_y = 1
+
+ lstr = self.colFormText(col_labels, col_label_align,
+ adjust_width=adjust_width)
+ self.label = Label(lstr)
+ self.setField(self.label, 0, 0, anchorLeft=1)
+
+ else:
+ Grid.__init__(self, 1, 1)
+ box_y = 0
+
+
+ self.listbox = Listbox(height, scroll, returnExit, width)
+ self.setField(self.listbox, 0, box_y, anchorRight=1)
+
+ def colFormText(self, col_text, align = None, adjust_width=0):
+ i = 0
+ str = ""
+ c_len = len(col_text)
+ while (i < self.cols) and (i < c_len):
+
+ cstr = col_text[i]
+ cstrlen = _snack.wstrlen(cstr)
+ if self.col_widths[i] < cstrlen:
+ if adjust_width:
+ self.col_widths[i] = cstrlen
+ else:
+ cstr = cstr[:self.col_widths[i]]
+
+ delta = self.col_widths[i] - _snack.wstrlen(cstr)
+
+ if delta > 0:
+ if align == None:
+ a = LEFT
+ else:
+ a = align[i]
+
+ if a == LEFT:
+ cstr = cstr + (" " * delta)
+ if a == CENTER:
+ cstr = (" " * (delta / 2)) + cstr + \
+ (" " * ((delta + 1) / 2))
+ if a == RIGHT:
+ cstr = (" " * delta) + cstr
+
+ if i != c_len - 1:
+ pstr = (" " * self.col_pad)
+ else:
+ pstr = ""
+
+ str = str + cstr + pstr
+
+ i = i + 1
+
+ return str
+
+ def append(self, col_text, item, col_text_align = None):
+ if col_text_align == None:
+ col_text_align = self.col_text_align
+ text = self.colFormText(col_text, col_text_align)
+ self.listbox.append(text, item)
+
+ def insert(self, col_text, item, before, col_text_align = None):
+ if col_text_align == None:
+ col_text_align = self.col_text_align
+ text = self.colFormText(col_text, col_text_align)
+ self.listbox.insert(text, item, before)
+
+ def delete(self, item):
+ self.listbox.delete(item)
+
+ def replace(self, col_text, item, col_text_align = None):
+ if col_text_align == None:
+ col_text_align = self.col_text_align
+ text = self.colFormText(col_text, col_text_align)
+ self.listbox.replace(text, item)
+
+ def current(self):
+ return self.listbox.current()
+
+ def setCurrent(self, item):
+ self.listbox.setCurrent(item)
+
+ def clear(self):
+ self.listbox.clear()
+def customColorset(x):
+ return 30 + x
projects / thirdparty / newt.git / blobdiff