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help_about.py
"""About Dialog for IDLE """ import os import sys from platform import python_version, architecture from tkinter import Toplevel, Frame, Label, Button, PhotoImage from tkinter import SUNKEN, TOP, BOTTOM, LEFT, X, BOTH, W, EW, NSEW, E from idlelib import textview def build_bits(): "Return bits for platform." if sys.platform == 'darwin': return '64' if sys.maxsize > 2**32 else '32' else: return architecture()[0][:2] class AboutDialog(Toplevel): """Modal about dialog for idle """ def __init__(self, parent, title=None, *, _htest=False, _utest=False): """Create popup, do not return until tk widget destroyed. parent - parent of this dialog title - string which is title of popup dialog _htest - bool, change box location when running htest _utest - bool, don't wait_window when running unittest """ Toplevel.__init__(self, parent) self.configure(borderwidth=5) # place dialog below parent if running htest self.geometry("+%d+%d" % ( parent.winfo_rootx()+30, parent.winfo_rooty()+(30 if not _htest else 100))) self.bg = "#bbbbbb" self.fg = "#000000" self.create_widgets() self.resizable(height=False, width=False) self.title(title or f'About IDLE {python_version()} ({build_bits()} bit)') self.transient(parent) self.grab_set() self.protocol("WM_DELETE_WINDOW", self.ok) self.parent = parent self.button_ok.focus_set() self.bind('<Return>', self.ok) # dismiss dialog self.bind('<Escape>', self.ok) # dismiss dialog self._current_textview = None self._utest = _utest if not _utest: self.deiconify() self.wait_window() def create_widgets(self): frame = Frame(self, borderwidth=2, relief=SUNKEN) frame_buttons = Frame(self) frame_buttons.pack(side=BOTTOM, fill=X) frame.pack(side=TOP, expand=True, fill=BOTH) self.button_ok = Button(frame_buttons, text='Close', command=self.ok) self.button_ok.pack(padx=5, pady=5) frame_background = Frame(frame, bg=self.bg) frame_background.pack(expand=True, fill=BOTH) header = Label(frame_background, text='IDLE', fg=self.fg, bg=self.bg, font=('courier', 24, 'bold')) header.grid(row=0, column=0, sticky=E, padx=10, pady=10) tk_patchlevel = self.tk.call('info', 'patchlevel') ext = '.png' if tk_patchlevel >= '8.6' else '.gif' icon = os.path.join(os.path.abspath(os.path.dirname(__file__)), 'Icons', f'idle_48{ext}') self.icon_image = PhotoImage(master=self._root(), file=icon) logo = Label(frame_background, image=self.icon_image, bg=self.bg) logo.grid(row=0, column=0, sticky=W, rowspan=2, padx=10, pady=10) byline_text = "Python's Integrated Development\nand Learning Environment" + 5*'\n' byline = Label(frame_background, text=byline_text, justify=LEFT, fg=self.fg, bg=self.bg) byline.grid(row=2, column=0, sticky=W, columnspan=3, padx=10, pady=5) email = Label(frame_background, text='email: idle-dev@python.org', justify=LEFT, fg=self.fg, bg=self.bg) email.grid(row=6, column=0, columnspan=2, sticky=W, padx=10, pady=0) docs = Label(frame_background, text='https://docs.python.org/' + python_version()[:3] + '/library/idle.html', justify=LEFT, fg=self.fg, bg=self.bg) docs.grid(row=7, column=0, columnspan=2, sticky=W, padx=10, pady=0) Frame(frame_background, borderwidth=1, relief=SUNKEN, height=2, bg=self.bg).grid(row=8, column=0, sticky=EW, columnspan=3, padx=5, pady=5) pyver = Label(frame_background, text='Python version: ' + python_version(), fg=self.fg, bg=self.bg) pyver.grid(row=9, column=0, sticky=W, padx=10, pady=0) tkver = Label(frame_background, text='Tk version: ' + tk_patchlevel, fg=self.fg, bg=self.bg) tkver.grid(row=9, column=1, sticky=W, padx=2, pady=0) py_buttons = Frame(frame_background, bg=self.bg) py_buttons.grid(row=10, column=0, columnspan=2, sticky=NSEW) self.py_license = Button(py_buttons, text='License', width=8, highlightbackground=self.bg, command=self.show_py_license) self.py_license.pack(side=LEFT, padx=10, pady=10) self.py_copyright = Button(py_buttons, text='Copyright', width=8, highlightbackground=self.bg, command=self.show_py_copyright) self.py_copyright.pack(side=LEFT, padx=10, pady=10) self.py_credits = Button(py_buttons, text='Credits', width=8, highlightbackground=self.bg, command=self.show_py_credits) self.py_credits.pack(side=LEFT, padx=10, pady=10) Frame(frame_background, borderwidth=1, relief=SUNKEN, height=2, bg=self.bg).grid(row=11, column=0, sticky=EW, columnspan=3, padx=5, pady=5) idlever = Label(frame_background, text='IDLE version: ' + python_version(), fg=self.fg, bg=self.bg) idlever.grid(row=12, column=0, sticky=W, padx=10, pady=0) idle_buttons = Frame(frame_background, bg=self.bg) idle_buttons.grid(row=13, column=0, columnspan=3, sticky=NSEW) self.readme = Button(idle_buttons, text='README', width=8, highlightbackground=self.bg, command=self.show_readme) self.readme.pack(side=LEFT, padx=10, pady=10) self.idle_news = Button(idle_buttons, text='NEWS', width=8, highlightbackground=self.bg, command=self.show_idle_news) self.idle_news.pack(side=LEFT, padx=10, pady=10) self.idle_credits = Button(idle_buttons, text='Credits', width=8, highlightbackground=self.bg, command=self.show_idle_credits) self.idle_credits.pack(side=LEFT, padx=10, pady=10) # License, copyright, and credits are of type _sitebuiltins._Printer def show_py_license(self): "Handle License button event." self.display_printer_text('About - License', license) def show_py_copyright(self): "Handle Copyright button event." self.display_printer_text('About - Copyright', copyright) def show_py_credits(self): "Handle Python Credits button event." self.display_printer_text('About - Python Credits', credits) # Encode CREDITS.txt to utf-8 for proper version of Loewis. # Specify others as ascii until need utf-8, so catch errors. def show_idle_credits(self): "Handle Idle Credits button event." self.display_file_text('About - Credits', 'CREDITS.txt', 'utf-8') def show_readme(self): "Handle Readme button event." self.display_file_text('About - Readme', 'README.txt', 'ascii') def show_idle_news(self): "Handle News button event." self.display_file_text('About - NEWS', 'NEWS.txt', 'utf-8') def display_printer_text(self, title, printer): """Create textview for built-in constants. Built-in constants have type _sitebuiltins._Printer. The text is extracted from the built-in and then sent to a text viewer with self as the parent and title as the title of the popup. """ printer._Printer__setup() text = '\n'.join(printer._Printer__lines) self._current_textview = textview.view_text( self, title, text, _utest=self._utest) def display_file_text(self, title, filename, encoding=None): """Create textview for filename. The filename needs to be in the current directory. The path is sent to a text viewer with self as the parent, title as the title of the popup, and the file encoding. """ fn = os.path.join(os.path.abspath(os.path.dirname(__file__)), filename) self._current_textview = textview.view_file( self, title, fn, encoding, _utest=self._utest) def ok(self, event=None): "Dismiss help_about dialog." self.grab_release() self.destroy() if __name__ == '__main__': from unittest import main main('idlelib.idle_test.test_help_about', verbosity=2, exit=False) from idlelib.idle_test.htest import run run(AboutDialog)
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