bpo-13802: Use non-Latin characters in IDLE's Font settings sample. (#3960)
Even if one selects a font that defines a limited subset of the unicode Basic Multilingual Plane, tcl/tk will use other fonts that define a character. The expanded example give users of non-Latin characters a better idea of what they might see in the IDLE shell and editors. To make room for the expanded sample, frames on the Font tab are re-arranged. The Font/Tabs help explains a bit about the additions.
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Terry Jan Reedy
GitHub
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@ -12,7 +12,7 @@ Refer to comments in EditorWindow autoindent code for details.
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from tkinter import (Toplevel, Listbox, Text, Scale, Canvas,
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StringVar, BooleanVar, IntVar, TRUE, FALSE,
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TOP, BOTTOM, RIGHT, LEFT, SOLID, GROOVE, NORMAL, DISABLED,
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NONE, BOTH, X, Y, W, E, EW, NS, NSEW, NW,
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NONE, BOTH, X, Y, W, E, EW, NS, NSEW, NW, CENTER,
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HORIZONTAL, VERTICAL, ANCHOR, ACTIVE, END)
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from tkinter.ttk import (Button, Checkbutton, Entry, Frame, Label, LabelFrame,
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OptionMenu, Notebook, Radiobutton, Scrollbar, Style)
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@ -479,8 +479,8 @@ class FontPage(Frame):
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font_size_title: Label
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(*)sizelist: DynOptionMenu - font_size
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(*)bold_toggle: Checkbutton - font_bold
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frame_font_sample: Frame
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(*)font_sample: Label
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frame_sample: LabelFrame
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(*)font_sample: Label
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frame_indent: LabelFrame
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indent_title: Label
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(*)indent_scale: Scale - space_num
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@ -490,10 +490,11 @@ class FontPage(Frame):
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self.font_bold = tracers.add(BooleanVar(self), self.var_changed_font)
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self.space_num = tracers.add(IntVar(self), ('main', 'Indent', 'num-spaces'))
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# Create widgets:
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# body and body section frames.
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# Define frames and widgets.
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frame_font = LabelFrame(
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self, borderwidth=2, relief=GROOVE, text=' Base Editor Font ')
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self, borderwidth=2, relief=GROOVE, text=' Shell/Editor Font ')
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frame_sample = LabelFrame(
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self, borderwidth=2, relief=GROOVE, text=' Font Sample ')
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frame_indent = LabelFrame(
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self, borderwidth=2, relief=GROOVE, text=' Indentation Width ')
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# frame_font.
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@ -501,7 +502,7 @@ class FontPage(Frame):
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frame_font_param = Frame(frame_font)
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font_name_title = Label(
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frame_font_name, justify=LEFT, text='Font Face :')
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self.fontlist = Listbox(frame_font_name, height=5,
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self.fontlist = Listbox(frame_font_name, height=15,
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takefocus=True, exportselection=FALSE)
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self.fontlist.bind('<ButtonRelease-1>', self.on_fontlist_select)
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self.fontlist.bind('<KeyRelease-Up>', self.on_fontlist_select)
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@ -514,11 +515,37 @@ class FontPage(Frame):
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self.bold_toggle = Checkbutton(
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frame_font_param, variable=self.font_bold,
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onvalue=1, offvalue=0, text='Bold')
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frame_font_sample = Frame(frame_font, relief=SOLID, borderwidth=1)
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# frame_sample.
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sample = (
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'<ASCII/Latin1>\n'
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'AaBbCcDdEeFfGgHhIiJj\n1234567890#:+=(){}[]\n'
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'\u00a2\u00a3\u00a5\u00a7\u00a9\u00ab\u00ae\u00b6\u00bd\u011e'
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'\u00c0\u00c1\u00c2\u00c3\u00c4\u00c5\u00c7\u00d0\u00d8\u00df\n'
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'\n<IPA,Greek,Cyrillic>\n'
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'\u0250\u0255\u0258\u025e\u025f\u0264\u026b\u026e\u0270\u0277'
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'\u027b\u0281\u0283\u0286\u028e\u029e\u02a2\u02ab\u02ad\u02af\n'
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'\u0391\u03b1\u0392\u03b2\u0393\u03b3\u0394\u03b4\u0395\u03b5'
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'\u0396\u03b6\u0397\u03b7\u0398\u03b8\u0399\u03b9\u039a\u03ba\n'
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'\u0411\u0431\u0414\u0434\u0416\u0436\u041f\u043f\u0424\u0444'
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'\u0427\u0447\u042a\u044a\u042d\u044d\u0460\u0464\u046c\u04dc\n'
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'\n<Hebrew, Arabic>\n'
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'\u05d0\u05d1\u05d2\u05d3\u05d4\u05d5\u05d6\u05d7\u05d8\u05d9'
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'\u05da\u05db\u05dc\u05dd\u05de\u05df\u05e0\u05e1\u05e2\u05e3\n'
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'\u0627\u0628\u062c\u062f\u0647\u0648\u0632\u062d\u0637\u064a'
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'\u0660\u0661\u0662\u0663\u0664\u0665\u0666\u0667\u0668\u0669\n'
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'\n<Devanagari, Tamil>\n'
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'\u0966\u0967\u0968\u0969\u096a\u096b\u096c\u096d\u096e\u096f'
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'\u0905\u0906\u0907\u0908\u0909\u090a\u090f\u0910\u0913\u0914\n'
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'\u0be6\u0be7\u0be8\u0be9\u0bea\u0beb\u0bec\u0bed\u0bee\u0bef'
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'\u0b85\u0b87\u0b89\u0b8e\n'
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'\n<East Asian>\n'
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'\u3007\u4e00\u4e8c\u4e09\u56db\u4e94\u516d\u4e03\u516b\u4e5d\n'
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'\u6c49\u5b57\u6f22\u5b57\u4eba\u6728\u706b\u571f\u91d1\u6c34\n'
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'\uac00\ub0d0\ub354\ub824\ubaa8\ubd64\uc218\uc720\uc988\uce58\n'
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'\u3042\u3044\u3046\u3048\u304a\u30a2\u30a4\u30a6\u30a8\u30aa\n'
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)
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temp_font = tkFont.Font(self, ('courier', 10, 'normal'))
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self.font_sample = Label(
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frame_font_sample, justify=LEFT, font=temp_font,
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text='AaBbCcDdEe\nFfGgHhIiJj\n1234567890\n#:+=(){}[]')
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self.font_sample = Label(frame_sample, text=sample, font=temp_font)
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# frame_indent.
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indent_title = Label(
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frame_indent, justify=LEFT,
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@ -527,10 +554,12 @@ class FontPage(Frame):
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frame_indent, variable=self.space_num,
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orient='horizontal', tickinterval=2, from_=2, to=16)
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# Pack widgets:
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# body.
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frame_font.pack(side=LEFT, padx=5, pady=5, expand=TRUE, fill=BOTH)
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frame_indent.pack(side=LEFT, padx=5, pady=5, fill=Y)
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# Grid and pack widgets:
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self.columnconfigure(1, weight=1)
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frame_font.grid(row=0, column=0, padx=5, pady=5)
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frame_sample.grid(row=0, column=1, rowspan=2, padx=5, pady=5,
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sticky='nsew')
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frame_indent.grid(row=1, column=0, padx=5, pady=5, sticky='ew')
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# frame_font.
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frame_font_name.pack(side=TOP, padx=5, pady=5, fill=X)
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frame_font_param.pack(side=TOP, padx=5, pady=5, fill=X)
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@ -540,10 +569,9 @@ class FontPage(Frame):
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font_size_title.pack(side=LEFT, anchor=W)
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self.sizelist.pack(side=LEFT, anchor=W)
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self.bold_toggle.pack(side=LEFT, anchor=W, padx=20)
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frame_font_sample.pack(side=TOP, padx=5, pady=5, expand=TRUE, fill=BOTH)
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# frame_sample.
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self.font_sample.pack(expand=TRUE, fill=BOTH)
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# frame_indent.
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frame_indent.pack(side=TOP, fill=X)
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indent_title.pack(side=TOP, anchor=W, padx=5)
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self.indent_scale.pack(side=TOP, padx=5, fill=X)
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@ -2108,10 +2136,24 @@ When you click either the Apply or Ok buttons, settings in this
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dialog that are different from IDLE's default are saved in
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a .idlerc directory in your home directory. Except as noted,
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these changes apply to all versions of IDLE installed on this
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machine. Some do not take affect until IDLE is restarted.
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[Cancel] only cancels changes made since the last save.
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machine. [Cancel] only cancels changes made since the last save.
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'''
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help_pages = {
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'Fonts/Tabs':'''
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Font sample: This shows what a selection of Basic Multilingual Plane
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unicode characters look like for the current font selection. If the
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selected font does not define a character, Tk attempts to find another
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font that does. Substitute glyphs depend on what is available on a
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particular system and will not necessarily have the same size as the
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font selected. Line contains 20 characters up to Devanagari, 14 for
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Tamil, and 10 for East Asia.
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Hebrew and Arabic letters should display right to left, starting with
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alef, \u05d0 and \u0627. Arabic digits display left to right. The
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Devanagari and Tamil lines start with digits. The East Asian lines
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are Chinese digits, Chinese Hanzi, Korean Hangul, and Japanese
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Hiragana and Katakana.
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''',
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'Highlights': '''
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Highlighting:
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The IDLE Dark color theme is new in October 2015. It can only
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@ -0,0 +1,15 @@
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Use non-Latin characters in the IDLE's Font settings sample.
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Even if one selects a font that defines a limited subset of the unicode
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Basic Multilingual Plane, tcl/tk will use other fonts that define a
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character. The expanded example give users of non-Latin characters
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a better idea of what they might see in IDLE's shell and editors.
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To make room for the expanded sample, frames on the Font tab are
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re-arranged. The Font/Tabs help explains a bit about the additions.
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