class Editor(ttk.Frame):
def __init__(self, master, filename=None):
ttk.Frame.__init__(self, master)
assert isinstance(master, EditorNotebook)
# parent of codeview will be workbench so that it can be maximized
self._code_view = CodeView(get_workbench(),
propose_remove_line_numbers=True,
font=get_workbench().get_font("EditorFont"))
get_workbench().event_generate("EditorTextCreated",
editor=self,
text_widget=self.get_text_widget())
self._code_view.grid(row=0, column=0, sticky=tk.NSEW, in_=self)
self._code_view.home_widget = self # don't forget home
self.maximizable_widget = self._code_view
self.columnconfigure(0, weight=1)
self.rowconfigure(0, weight=1)
self._filename = None
if filename is not None:
self._load_file(filename)
self._code_view.text.edit_modified(False)
self._code_view.text.bind("<<Modified>>", self._on_text_modified, True)
self._code_view.text.bind("<<TextChange>>", self._on_text_change, True)
self._code_view.text.bind("<Control-Tab>", self._control_tab, True)
get_workbench().bind("AfterKnownMagicCommand",
self._listen_for_execute, True)
get_workbench().bind("ToplevelResult",
self._listen_for_toplevel_result, True)
self.update_appearance()
def get_text_widget(self):
return self._code_view.text
def get_code_view(self):
# TODO: try to get rid of this
return self._code_view
def get_filename(self, try_hard=False):
if self._filename is None and try_hard:
self.save_file()
return self._filename
def get_long_description(self):
if self._filename is None:
result = "<untitled>"
else:
result = self._filename
try:
index = self._code_view.text.index("insert")
if index and "." in index:
line, col = index.split(".")
result += " @ {} : {}".format(line, int(col) + 1)
except:
exception("Finding cursor location")
return result
def _load_file(self, filename):
with tokenize.open(filename) as fp: # TODO: support also text files
source = fp.read()
self._filename = filename
get_workbench().event_generate("Open", editor=self, filename=filename)
self._code_view.set_content(source)
self._code_view.focus_set()
self.master.remember_recent_file(filename)
def is_modified(self):
return self._code_view.text.edit_modified()
def save_file_enabled(self):
return self.is_modified() or not self.get_filename()
def save_file(self, ask_filename=False):
if self._filename is not None and not ask_filename:
filename = self._filename
get_workbench().event_generate("Save",
editor=self,
filename=filename)
else:
# http://tkinter.unpythonic.net/wiki/tkFileDialog
filename = asksaveasfilename(
filetypes=_dialog_filetypes,
defaultextension=".py",
initialdir=get_workbench().get_option("run.working_directory"))
if filename in [
"", (), None
]: # Different tkinter versions may return different values
return None
# Seems that in some Python versions defaultextension
# acts funny
if filename.lower().endswith(".py.py"):
filename = filename[:-3]
get_workbench().event_generate("SaveAs",
editor=self,
filename=filename)
content = self._code_view.get_content()
encoding = "UTF-8" # TODO: check for marker in the head of the code
try:
f = open(
filename,
mode="wb",
)
f.write(content.encode(encoding))
f.close()
except PermissionError:
if askyesno(
"Permission Error",
"Looks like this file or folder is not writable.\n\n" +
"Do you want to save under another folder and/or filename?"
):
return self.save_file(True)
else:
return None
self._filename = filename
self.master.remember_recent_file(filename)
self._code_view.text.edit_modified(False)
return self._filename
def show(self):
self.master.select(self)
def update_appearance(self):
self._code_view.set_line_numbers(
get_workbench().get_option("view.show_line_numbers"))
self._code_view.set_line_length_margin(
get_workbench().get_option("view.recommended_line_length"))
self._code_view.text.event_generate("<<UpdateAppearance>>")
def _listen_for_execute(self, event):
command, args = parse_shell_command(event.cmd_line)
# Go read-only
if command.lower() == "debug":
if len(args) == 0:
return
filename = args[0]
self_filename = self.get_filename()
if self_filename is not None and os.path.basename(
self_filename) == filename:
# Not that command has only basename
# so this solution may make more editors read-only than necessary
self._code_view.text.set_read_only(True)
def _listen_for_toplevel_result(self, event):
self._code_view.text.set_read_only(False)
def _control_tab(self, event):
if event.state & 1: # shift was pressed
direction = -1
else:
direction = 1
self.master.select_next_prev_editor(direction)
return "break"
def _shift_control_tab(self, event):
self.master.select_next_prev_editor(-1)
return "break"
def select_range(self, text_range):
self._code_view.select_range(text_range)
def focus_set(self):
self._code_view.focus_set()
def is_focused(self):
return self.focus_displayof() == self._code_view.text
def _on_text_modified(self, event):
self.master.update_editor_title(self)
def _on_text_change(self, event):
self.master.update_editor_title(self)
runner = get_runner()
if (runner.get_state() in [
"running", "waiting_input", "waiting_debugger_command"
] and isinstance(runner.get_current_command(),
(ToplevelCommand,
DebuggerCommand))): # exclude running InlineCommands
runner.interrupt_backend()
def destroy(self):
get_workbench().unbind("AfterKnownMagicCommand",
self._listen_for_execute)
get_workbench().unbind("ToplevelResult",
self._listen_for_toplevel_result)
ttk.Frame.destroy(self)
class Editor(ttk.Frame):
def __init__(self, master, filename=None):
ttk.Frame.__init__(self, master)
assert isinstance(master, EditorNotebook)
# parent of codeview will be workbench so that it can be maximized
self._code_view = CodeView(get_workbench(),
propose_remove_line_numbers=True,
font=get_workbench().get_font("EditorFont"))
get_workbench().event_generate("EditorTextCreated",
editor=self,
text_widget=self.get_text_widget())
self._code_view.grid(row=0, column=0, sticky=tk.NSEW, in_=self)
self._code_view.home_widget = self # don't forget home
self.maximizable_widget = self._code_view
self.columnconfigure(0, weight=1)
self.rowconfigure(0, weight=1)
self._filename = None
self.file_encoding = None
if filename is not None:
self._load_file(filename)
self._code_view.text.edit_modified(False)
self._code_view.text.bind("<<Modified>>",
lambda e: master.update_editor_title(self),
True)
self._code_view.text.bind("<Control-Tab>", self._control_tab, True)
get_workbench().bind("AfterKnownMagicCommand",
self._listen_for_execute, True)
get_workbench().bind("ToplevelResult",
self._listen_for_toplevel_result, True)
self.update_appearance()
def get_text_widget(self):
return self._code_view.text
def get_code_view(self):
# TODO: try to get rid of this
return self._code_view
def get_filename(self, try_hard=False):
if self._filename is None and try_hard:
self.save_file()
return self._filename
def _load_file(self, filename):
source, self.file_encoding = misc_utils.read_python_file(
filename) # TODO: support also text files
self._filename = filename
get_workbench().event_generate("Open", editor=self, filename=filename)
self._code_view.set_content(source)
self._code_view.focus_set()
self.master.remember_recent_file(filename)
def is_modified(self):
return self._code_view.text.edit_modified()
def save_file_enabled(self):
return self.is_modified() or not self.get_filename()
def save_file(self, ask_filename=False):
if self._filename is not None and not ask_filename:
filename = self._filename
get_workbench().event_generate("Save",
editor=self,
filename=filename)
else:
# http://tkinter.unpythonic.net/wiki/tkFileDialog
filename = asksaveasfilename(
filetypes=_dialog_filetypes,
defaultextension=".py",
initialdir=get_workbench().get_option("run.working_directory"))
if filename in [
"", (), None
]: # Different tkinter versions may return different values
return None
# Seems that in some Python versions defaultextension
# acts funny
if filename.lower().endswith(".py.py"):
filename = filename[:-3]
get_workbench().event_generate("SaveAs",
editor=self,
filename=filename)
content = self._code_view.get_content()
encoding = self.file_encoding or "UTF-8"
f = open(
filename,
mode="wb",
)
f.write(content.encode(encoding))
f.close()
self._filename = filename
self.master.remember_recent_file(filename)
self._code_view.text.edit_modified(False)
return self._filename
def show(self):
self.master.select(self)
def update_appearance(self):
self._code_view.set_line_numbers(
get_workbench().get_option("view.show_line_numbers"))
self._code_view.set_line_length_margin(
get_workbench().get_option("view.recommended_line_length"))
self._code_view.text.event_generate("<<UpdateAppearance>>")
def _listen_for_execute(self, event):
command, args = parse_shell_command(event.cmd_line)
if command.lower() in ["run", "debug"]:
if len(args) == 0:
return
filename = args[0]
self_filename = self.get_filename()
if self_filename is not None and os.path.basename(
self_filename) == filename:
# Not that command has only basename
# so this solution may make more editors read-only than necessary
self._code_view.text.set_read_only(True)
def _listen_for_toplevel_result(self, event):
self._code_view.text.set_read_only(False)
def _control_tab(self, event):
if event.state & 1: # shift was pressed
direction = -1
else:
direction = 1
self.master.select_next_prev_editor(direction)
return "break"
def _shift_control_tab(self, event):
self.master.select_next_prev_editor(-1)
return "break"
def select_range(self, text_range):
self._code_view.select_range(text_range)
def focus_set(self):
self._code_view.focus_set()
def is_focused(self):
return self.focus_displayof() == self._code_view.text
def destroy(self):
get_workbench().unbind("AfterKnownMagicCommand",
self._listen_for_execute)
get_workbench().unbind("ToplevelResult",
self._listen_for_toplevel_result)
ttk.Frame.destroy(self)
