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bpo-35598: IDLE: Update config_key.py with PEP8 names (GH-11330)
A few other changes make the code easier to follow.
This commit is contained in:
Cheryl Sabella
Terry Jan Reedy
parent
0133f9fc9e
commit
55698cc395
4 changed files with 214 additions and 184 deletions
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@ -13,39 +13,42 @@ class GetKeysDialog(Toplevel):
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# Dialog title for invalid key sequence
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keyerror_title = 'Key Sequence Error'
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def __init__(self, parent, title, action, currentKeySequences,
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def __init__(self, parent, title, action, current_key_sequences,
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*, _htest=False, _utest=False):
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"""
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parent - parent of this dialog
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title - string which is the title of the popup dialog
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action - string, the name of the virtual event these keys will be
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mapped to
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currentKeys - list, a list of all key sequence lists currently mapped
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to virtual events, for overlap checking
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_utest - bool, do not wait when running unittest
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current_key_sequences - list, a list of all key sequence lists
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currently mapped to virtual events, for overlap checking
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_htest - bool, change box location when running htest
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_utest - bool, do not wait when running unittest
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"""
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Toplevel.__init__(self, parent)
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self.withdraw() #hide while setting geometry
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self.withdraw() # Hide while setting geometry.
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self.configure(borderwidth=5)
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self.resizable(height=FALSE, width=FALSE)
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self.resizable(height=False, width=False)
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self.title(title)
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self.transient(parent)
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self.grab_set()
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self.protocol("WM_DELETE_WINDOW", self.Cancel)
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self.protocol("WM_DELETE_WINDOW", self.cancel)
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self.parent = parent
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self.action=action
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self.currentKeySequences = currentKeySequences
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self.action = action
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self.current_key_sequences = current_key_sequences
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self.result = ''
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self.keyString = StringVar(self)
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self.keyString.set('')
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self.SetModifiersForPlatform() # set self.modifiers, self.modifier_label
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self.key_string = StringVar(self)
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self.key_string.set('')
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# Set self.modifiers, self.modifier_label.
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self.set_modifiers_for_platform()
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self.modifier_vars = []
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for modifier in self.modifiers:
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variable = StringVar(self)
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variable.set('')
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self.modifier_vars.append(variable)
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self.advanced = False
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self.CreateWidgets()
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self.LoadFinalKeyList()
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self.create_widgets()
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self.load_final_key_list()
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self.update_idletasks()
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self.geometry(
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"+%d+%d" % (
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@ -54,83 +57,99 @@ class GetKeysDialog(Toplevel):
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parent.winfo_rooty() +
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((parent.winfo_height()/2 - self.winfo_reqheight()/2)
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if not _htest else 150)
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) ) #centre dialog over parent (or below htest box)
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) ) # Center dialog over parent (or below htest box).
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if not _utest:
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self.deiconify() #geometry set, unhide
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self.deiconify() # Geometry set, unhide.
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self.wait_window()
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def showerror(self, *args, **kwargs):
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# Make testing easier. Replace in #30751.
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messagebox.showerror(*args, **kwargs)
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def CreateWidgets(self):
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frameMain = Frame(self,borderwidth=2,relief=SUNKEN)
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frameMain.pack(side=TOP,expand=TRUE,fill=BOTH)
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frameButtons=Frame(self)
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frameButtons.pack(side=BOTTOM,fill=X)
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self.buttonOK = Button(frameButtons,text='OK',
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width=8,command=self.OK)
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self.buttonOK.grid(row=0,column=0,padx=5,pady=5)
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self.buttonCancel = Button(frameButtons,text='Cancel',
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width=8,command=self.Cancel)
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self.buttonCancel.grid(row=0,column=1,padx=5,pady=5)
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self.frameKeySeqBasic = Frame(frameMain)
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self.frameKeySeqAdvanced = Frame(frameMain)
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self.frameControlsBasic = Frame(frameMain)
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self.frameHelpAdvanced = Frame(frameMain)
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self.frameKeySeqAdvanced.grid(row=0,column=0,sticky=NSEW,padx=5,pady=5)
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self.frameKeySeqBasic.grid(row=0,column=0,sticky=NSEW,padx=5,pady=5)
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self.frameKeySeqBasic.lift()
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self.frameHelpAdvanced.grid(row=1,column=0,sticky=NSEW,padx=5)
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self.frameControlsBasic.grid(row=1,column=0,sticky=NSEW,padx=5)
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self.frameControlsBasic.lift()
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self.buttonLevel = Button(frameMain,command=self.ToggleLevel,
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text='Advanced Key Binding Entry >>')
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self.buttonLevel.grid(row=2,column=0,stick=EW,padx=5,pady=5)
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labelTitleBasic = Label(self.frameKeySeqBasic,
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text="New keys for '"+self.action+"' :")
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labelTitleBasic.pack(anchor=W)
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labelKeysBasic = Label(self.frameKeySeqBasic,justify=LEFT,
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textvariable=self.keyString,relief=GROOVE,borderwidth=2)
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labelKeysBasic.pack(ipadx=5,ipady=5,fill=X)
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def create_widgets(self):
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frame = Frame(self, borderwidth=2, relief=SUNKEN)
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frame.pack(side=TOP, expand=True, fill=BOTH)
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frame_buttons = Frame(self)
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frame_buttons.pack(side=BOTTOM, fill=X)
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self.button_ok = Button(frame_buttons, text='OK',
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width=8, command=self.ok)
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self.button_ok.grid(row=0, column=0, padx=5, pady=5)
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self.button_cancel = Button(frame_buttons, text='Cancel',
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width=8, command=self.cancel)
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self.button_cancel.grid(row=0, column=1, padx=5, pady=5)
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# Basic entry key sequence.
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self.frame_keyseq_basic = Frame(frame)
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self.frame_keyseq_basic.grid(row=0, column=0, sticky=NSEW,
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padx=5, pady=5)
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basic_title = Label(self.frame_keyseq_basic,
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text=f"New keys for '{self.action}' :")
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basic_title.pack(anchor=W)
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basic_keys = Label(self.frame_keyseq_basic, justify=LEFT,
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textvariable=self.key_string, relief=GROOVE,
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borderwidth=2)
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basic_keys.pack(ipadx=5, ipady=5, fill=X)
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# Basic entry controls.
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self.frame_controls_basic = Frame(frame)
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self.frame_controls_basic.grid(row=1, column=0, sticky=NSEW, padx=5)
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# Basic entry modifiers.
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self.modifier_checkbuttons = {}
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column = 0
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for modifier, variable in zip(self.modifiers, self.modifier_vars):
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label = self.modifier_label.get(modifier, modifier)
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check=Checkbutton(self.frameControlsBasic,
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command=self.BuildKeyString,
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text=label,variable=variable,onvalue=modifier,offvalue='')
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check.grid(row=0,column=column,padx=2,sticky=W)
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check = Checkbutton(self.frame_controls_basic,
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command=self.build_key_string, text=label,
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variable=variable, onvalue=modifier, offvalue='')
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check.grid(row=0, column=column, padx=2, sticky=W)
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self.modifier_checkbuttons[modifier] = check
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column += 1
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labelFnAdvice=Label(self.frameControlsBasic,justify=LEFT,
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text=\
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"Select the desired modifier keys\n"+
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"above, and the final key from the\n"+
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"list on the right.\n\n" +
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"Use upper case Symbols when using\n" +
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"the Shift modifier. (Letters will be\n" +
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"converted automatically.)")
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labelFnAdvice.grid(row=1,column=0,columnspan=4,padx=2,sticky=W)
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self.listKeysFinal=Listbox(self.frameControlsBasic,width=15,height=10,
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selectmode=SINGLE)
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self.listKeysFinal.bind('<ButtonRelease-1>',self.FinalKeySelected)
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self.listKeysFinal.grid(row=0,column=4,rowspan=4,sticky=NS)
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scrollKeysFinal=Scrollbar(self.frameControlsBasic,orient=VERTICAL,
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command=self.listKeysFinal.yview)
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self.listKeysFinal.config(yscrollcommand=scrollKeysFinal.set)
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scrollKeysFinal.grid(row=0,column=5,rowspan=4,sticky=NS)
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self.buttonClear=Button(self.frameControlsBasic,
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text='Clear Keys',command=self.ClearKeySeq)
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self.buttonClear.grid(row=2,column=0,columnspan=4)
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labelTitleAdvanced = Label(self.frameKeySeqAdvanced,justify=LEFT,
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text="Enter new binding(s) for '"+self.action+"' :\n"+
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"(These bindings will not be checked for validity!)")
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labelTitleAdvanced.pack(anchor=W)
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self.entryKeysAdvanced=Entry(self.frameKeySeqAdvanced,
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textvariable=self.keyString)
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self.entryKeysAdvanced.pack(fill=X)
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labelHelpAdvanced=Label(self.frameHelpAdvanced,justify=LEFT,
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# Basic entry help text.
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help_basic = Label(self.frame_controls_basic, justify=LEFT,
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text="Select the desired modifier keys\n"+
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"above, and the final key from the\n"+
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"list on the right.\n\n" +
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"Use upper case Symbols when using\n" +
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"the Shift modifier. (Letters will be\n" +
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"converted automatically.)")
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help_basic.grid(row=1, column=0, columnspan=4, padx=2, sticky=W)
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# Basic entry key list.
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self.list_keys_final = Listbox(self.frame_controls_basic, width=15,
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height=10, selectmode=SINGLE)
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self.list_keys_final.bind('<ButtonRelease-1>', self.final_key_selected)
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self.list_keys_final.grid(row=0, column=4, rowspan=4, sticky=NS)
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scroll_keys_final = Scrollbar(self.frame_controls_basic,
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orient=VERTICAL,
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command=self.list_keys_final.yview)
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self.list_keys_final.config(yscrollcommand=scroll_keys_final.set)
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scroll_keys_final.grid(row=0, column=5, rowspan=4, sticky=NS)
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self.button_clear = Button(self.frame_controls_basic,
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text='Clear Keys',
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command=self.clear_key_seq)
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self.button_clear.grid(row=2, column=0, columnspan=4)
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# Advanced entry key sequence.
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self.frame_keyseq_advanced = Frame(frame)
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self.frame_keyseq_advanced.grid(row=0, column=0, sticky=NSEW,
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padx=5, pady=5)
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advanced_title = Label(self.frame_keyseq_advanced, justify=LEFT,
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text=f"Enter new binding(s) for '{self.action}' :\n" +
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"(These bindings will not be checked for validity!)")
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advanced_title.pack(anchor=W)
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self.advanced_keys = Entry(self.frame_keyseq_advanced,
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textvariable=self.key_string)
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self.advanced_keys.pack(fill=X)
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# Advanced entry help text.
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self.frame_help_advanced = Frame(frame)
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self.frame_help_advanced.grid(row=1, column=0, sticky=NSEW, padx=5)
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help_advanced = Label(self.frame_help_advanced, justify=LEFT,
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text="Key bindings are specified using Tkinter keysyms as\n"+
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"in these samples: <Control-f>, <Shift-F2>, <F12>,\n"
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"<Control-space>, <Meta-less>, <Control-Alt-Shift-X>.\n"
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@ -140,13 +159,19 @@ class GetKeysDialog(Toplevel):
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"is the 'do-nothing' keybinding.\n\n" +
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"Multiple separate bindings for one action should be\n"+
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"separated by a space, eg., <Alt-v> <Meta-v>." )
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labelHelpAdvanced.grid(row=0,column=0,sticky=NSEW)
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help_advanced.grid(row=0, column=0, sticky=NSEW)
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def SetModifiersForPlatform(self):
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# Switch between basic and advanced.
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self.button_level = Button(frame, command=self.toggle_level,
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text='<< Basic Key Binding Entry')
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self.button_level.grid(row=2, column=0, stick=EW, padx=5, pady=5)
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self.toggle_level()
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def set_modifiers_for_platform(self):
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"""Determine list of names of key modifiers for this platform.
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The names are used to build Tk bindings -- it doesn't matter if the
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keyboard has these keys, it matters if Tk understands them. The
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keyboard has these keys; it matters if Tk understands them. The
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order is also important: key binding equality depends on it, so
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config-keys.def must use the same ordering.
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"""
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@ -154,118 +179,124 @@ class GetKeysDialog(Toplevel):
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self.modifiers = ['Shift', 'Control', 'Option', 'Command']
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else:
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self.modifiers = ['Control', 'Alt', 'Shift']
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self.modifier_label = {'Control': 'Ctrl'} # short name
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self.modifier_label = {'Control': 'Ctrl'} # Short name.
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def ToggleLevel(self):
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if self.buttonLevel.cget('text')[:8]=='Advanced':
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self.ClearKeySeq()
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self.buttonLevel.config(text='<< Basic Key Binding Entry')
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self.frameKeySeqAdvanced.lift()
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self.frameHelpAdvanced.lift()
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self.entryKeysAdvanced.focus_set()
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def toggle_level(self):
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"Toggle between basic and advanced keys."
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if self.button_level.cget('text').startswith('Advanced'):
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self.clear_key_seq()
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self.button_level.config(text='<< Basic Key Binding Entry')
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self.frame_keyseq_advanced.lift()
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self.frame_help_advanced.lift()
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self.advanced_keys.focus_set()
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self.advanced = True
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else:
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self.ClearKeySeq()
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self.buttonLevel.config(text='Advanced Key Binding Entry >>')
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self.frameKeySeqBasic.lift()
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self.frameControlsBasic.lift()
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self.clear_key_seq()
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self.button_level.config(text='Advanced Key Binding Entry >>')
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self.frame_keyseq_basic.lift()
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self.frame_controls_basic.lift()
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self.advanced = False
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def FinalKeySelected(self,event):
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self.BuildKeyString()
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def final_key_selected(self, event):
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"Handler for clicking on key in basic settings list."
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self.build_key_string()
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def BuildKeyString(self):
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keyList = modifiers = self.GetModifiers()
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finalKey = self.listKeysFinal.get(ANCHOR)
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if finalKey:
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finalKey = self.TranslateKey(finalKey, modifiers)
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keyList.append(finalKey)
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self.keyString.set('<' + '-'.join(keyList) + '>')
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def build_key_string(self):
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"Create formatted string of modifiers plus the key."
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keylist = modifiers = self.get_modifiers()
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final_key = self.list_keys_final.get(ANCHOR)
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if final_key:
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final_key = self.translate_key(final_key, modifiers)
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keylist.append(final_key)
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self.key_string.set(f"<{'-'.join(keylist)}>")
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def GetModifiers(self):
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modList = [variable.get() for variable in self.modifier_vars]
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return [mod for mod in modList if mod]
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def get_modifiers(self):
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"Return ordered list of modifiers that have been selected."
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mod_list = [variable.get() for variable in self.modifier_vars]
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return [mod for mod in mod_list if mod]
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def ClearKeySeq(self):
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self.listKeysFinal.select_clear(0,END)
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self.listKeysFinal.yview(MOVETO, '0.0')
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def clear_key_seq(self):
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"Clear modifiers and keys selection."
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self.list_keys_final.select_clear(0, END)
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self.list_keys_final.yview(MOVETO, '0.0')
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for variable in self.modifier_vars:
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variable.set('')
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self.keyString.set('')
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self.key_string.set('')
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def LoadFinalKeyList(self):
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#these tuples are also available for use in validity checks
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self.functionKeys=('F1','F2','F3','F4','F5','F6','F7','F8','F9',
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'F10','F11','F12')
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self.alphanumKeys=tuple(string.ascii_lowercase+string.digits)
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self.punctuationKeys=tuple('~!@#%^&*()_-+={}[]|;:,.<>/?')
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self.whitespaceKeys=('Tab','Space','Return')
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self.editKeys=('BackSpace','Delete','Insert')
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self.moveKeys=('Home','End','Page Up','Page Down','Left Arrow',
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'Right Arrow','Up Arrow','Down Arrow')
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#make a tuple of most of the useful common 'final' keys
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keys=(self.alphanumKeys+self.punctuationKeys+self.functionKeys+
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self.whitespaceKeys+self.editKeys+self.moveKeys)
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self.listKeysFinal.insert(END, *keys)
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def load_final_key_list(self):
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"Populate listbox of available keys."
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# These tuples are also available for use in validity checks.
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self.function_keys = ('F1', 'F2' ,'F3' ,'F4' ,'F5' ,'F6',
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'F7', 'F8' ,'F9' ,'F10' ,'F11' ,'F12')
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self.alphanum_keys = tuple(string.ascii_lowercase + string.digits)
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self.punctuation_keys = tuple('~!@#%^&*()_-+={}[]|;:,.<>/?')
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self.whitespace_keys = ('Tab', 'Space', 'Return')
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self.edit_keys = ('BackSpace', 'Delete', 'Insert')
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self.move_keys = ('Home', 'End', 'Page Up', 'Page Down', 'Left Arrow',
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'Right Arrow', 'Up Arrow', 'Down Arrow')
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# Make a tuple of most of the useful common 'final' keys.
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keys = (self.alphanum_keys + self.punctuation_keys + self.function_keys +
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self.whitespace_keys + self.edit_keys + self.move_keys)
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self.list_keys_final.insert(END, *keys)
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def TranslateKey(self, key, modifiers):
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"Translate from keycap symbol to the Tkinter keysym"
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translateDict = {'Space':'space',
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'~':'asciitilde','!':'exclam','@':'at','#':'numbersign',
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'%':'percent','^':'asciicircum','&':'ampersand','*':'asterisk',
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'(':'parenleft',')':'parenright','_':'underscore','-':'minus',
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'+':'plus','=':'equal','{':'braceleft','}':'braceright',
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'[':'bracketleft',']':'bracketright','|':'bar',';':'semicolon',
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':':'colon',',':'comma','.':'period','<':'less','>':'greater',
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'/':'slash','?':'question','Page Up':'Prior','Page Down':'Next',
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'Left Arrow':'Left','Right Arrow':'Right','Up Arrow':'Up',
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'Down Arrow': 'Down', 'Tab':'Tab'}
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if key in translateDict:
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key = translateDict[key]
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@staticmethod
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def translate_key(key, modifiers):
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"Translate from keycap symbol to the Tkinter keysym."
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translate_dict = {'Space':'space',
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'~':'asciitilde', '!':'exclam', '@':'at', '#':'numbersign',
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'%':'percent', '^':'asciicircum', '&':'ampersand',
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'*':'asterisk', '(':'parenleft', ')':'parenright',
|
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'_':'underscore', '-':'minus', '+':'plus', '=':'equal',
|
||||
'{':'braceleft', '}':'braceright',
|
||||
'[':'bracketleft', ']':'bracketright', '|':'bar',
|
||||
';':'semicolon', ':':'colon', ',':'comma', '.':'period',
|
||||
'<':'less', '>':'greater', '/':'slash', '?':'question',
|
||||
'Page Up':'Prior', 'Page Down':'Next',
|
||||
'Left Arrow':'Left', 'Right Arrow':'Right',
|
||||
'Up Arrow':'Up', 'Down Arrow': 'Down', 'Tab':'Tab'}
|
||||
if key in translate_dict:
|
||||
key = translate_dict[key]
|
||||
if 'Shift' in modifiers and key in string.ascii_lowercase:
|
||||
key = key.upper()
|
||||
key = 'Key-' + key
|
||||
return key
|
||||
return f'Key-{key}'
|
||||
|
||||
def OK(self, event=None):
|
||||
keys = self.keyString.get().strip()
|
||||
def ok(self, event=None):
|
||||
keys = self.key_string.get().strip()
|
||||
if not keys:
|
||||
self.showerror(title=self.keyerror_title, parent=self,
|
||||
message="No key specified.")
|
||||
return
|
||||
if (self.advanced or self.KeysOK(keys)) and self.bind_ok(keys):
|
||||
if (self.advanced or self.keys_ok(keys)) and self.bind_ok(keys):
|
||||
self.result = keys
|
||||
self.grab_release()
|
||||
self.destroy()
|
||||
|
||||
def Cancel(self, event=None):
|
||||
self.result=''
|
||||
def cancel(self, event=None):
|
||||
self.result = ''
|
||||
self.grab_release()
|
||||
self.destroy()
|
||||
|
||||
def KeysOK(self, keys):
|
||||
'''Validity check on user's 'basic' keybinding selection.
|
||||
def keys_ok(self, keys):
|
||||
"""Validity check on user's 'basic' keybinding selection.
|
||||
|
||||
Doesn't check the string produced by the advanced dialog because
|
||||
'modifiers' isn't set.
|
||||
|
||||
'''
|
||||
finalKey = self.listKeysFinal.get(ANCHOR)
|
||||
modifiers = self.GetModifiers()
|
||||
keysOK = False
|
||||
"""
|
||||
final_key = self.list_keys_final.get(ANCHOR)
|
||||
modifiers = self.get_modifiers()
|
||||
title = self.keyerror_title
|
||||
key_sequences = [key for keylist in self.currentKeySequences
|
||||
key_sequences = [key for keylist in self.current_key_sequences
|
||||
for key in keylist]
|
||||
if not keys.endswith('>'):
|
||||
self.showerror(title, parent=self,
|
||||
message='Missing the final Key')
|
||||
elif (not modifiers
|
||||
and finalKey not in self.functionKeys + self.moveKeys):
|
||||
and final_key not in self.function_keys + self.move_keys):
|
||||
self.showerror(title=title, parent=self,
|
||||
message='No modifier key(s) specified.')
|
||||
elif (modifiers == ['Shift']) \
|
||||
and (finalKey not in
|
||||
self.functionKeys + self.moveKeys + ('Tab', 'Space')):
|
||||
and (final_key not in
|
||||
self.function_keys + self.move_keys + ('Tab', 'Space')):
|
||||
msg = 'The shift modifier by itself may not be used with'\
|
||||
' this key symbol.'
|
||||
self.showerror(title=title, parent=self, message=msg)
|
||||
|
|
@ -273,12 +304,11 @@ class GetKeysDialog(Toplevel):
|
|||
msg = 'This key combination is already in use.'
|
||||
self.showerror(title=title, parent=self, message=msg)
|
||||
else:
|
||||
keysOK = True
|
||||
return keysOK
|
||||
return True
|
||||
return False
|
||||
|
||||
def bind_ok(self, keys):
|
||||
"Return True if Tcl accepts the new keys else show message."
|
||||
|
||||
try:
|
||||
binding = self.bind(keys, lambda: None)
|
||||
except TclError as err:
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue