bpo-27099: IDLE - Convert built-in extensions to regular features (#2494)

About 10 IDLE features were implemented as supposedly optional
extensions.  Their different behavior could be confusing or worse for
users and not good for maintenance.  Hence the conversion.

The main difference for users is that user configurable key bindings
for builtin features are now handled uniformly.  Now, editing a binding
in a keyset only affects its value in the keyset.  All bindings are
defined together in the system-specific default keysets in config-
extensions.def.  All custom keysets are saved as a whole in config-
extension.cfg.  All take effect as soon as one clicks Apply or Ok.

The affected events are '<<force-open-completions>>', '<<expand-word>>',
'<<force-open-calltip>>', '<<flash-paren>>', '<<format-paragraph>>',
'<<run-module>>', '<<check-module>>', and '<<zoom-height>>'.  Any
(global) customizations made before 3.6.3 will not affect their keyset-
specific customization after 3.6.3. and vice versa.

Inital patch by Charles Wohlganger, revised by Terry Jan Reedy.
This commit is contained in:
wohlganger 2017-09-10 16:19:47 -05:00 committed by Terry Jan Reedy
parent d39dbf4cf1
commit 58fc71c447
21 changed files with 451 additions and 272 deletions

View file

@ -1,4 +1,4 @@
"""codecontext - Extension to display the block context above the edit window
"""codecontext - display the block context above the edit window
Once code has scrolled off the top of a window, it can be difficult to
determine which block you are in. This extension implements a pane at the top
@ -25,10 +25,8 @@ FONTUPDATEINTERVAL = 1000 # millisec
getspacesfirstword =\
lambda s, c=re.compile(r"^(\s*)(\w*)"): c.match(s).groups()
class CodeContext:
menudefs = [('options', [('!Code Conte_xt', '<<toggle-code-context>>')])]
context_depth = idleConf.GetOption("extensions", "CodeContext",
"numlines", type="int", default=3)
bgcolor = idleConf.GetOption("extensions", "CodeContext",
"bgcolor", type="str", default="LightGray")
fgcolor = idleConf.GetOption("extensions", "CodeContext",
@ -45,15 +43,20 @@ class CodeContext:
# starts the toplevel 'block' of the module.
self.info = [(0, -1, "", False)]
self.topvisible = 1
visible = idleConf.GetOption("extensions", "CodeContext",
"visible", type="bool", default=False)
if visible:
self.toggle_code_context_event()
self.editwin.setvar('<<toggle-code-context>>', True)
self.reload()
# Start two update cycles, one for context lines, one for font changes.
self.text.after(UPDATEINTERVAL, self.timer_event)
self.text.after(FONTUPDATEINTERVAL, self.font_timer_event)
@classmethod
def reload(cls):
cls.context_depth = idleConf.GetOption("extensions", "CodeContext",
"numlines", type="int", default=3)
cls.bgcolor = idleConf.GetOption("extensions", "CodeContext",
"bgcolor", type="str", default="LightGray")
cls.fgcolor = idleConf.GetOption("extensions", "CodeContext",
"fgcolor", type="str", default="Black")
def toggle_code_context_event(self, event=None):
if not self.label:
# Calculate the border width and horizontal padding required to
@ -86,7 +89,7 @@ class CodeContext:
else:
self.label.destroy()
self.label = None
idleConf.SetOption("extensions", "CodeContext", "visible",
idleConf.SetOption("main", "Theme", "contexton",
str(self.label is not None))
idleConf.SaveUserCfgFiles()
return "break"
@ -177,3 +180,6 @@ class CodeContext:
self.textfont = newtextfont
self.label["font"] = self.textfont
self.text.after(FONTUPDATEINTERVAL, self.font_timer_event)
CodeContext.reload()