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Corrected some bugs in AutoComplete. Also, Page Up/Down in ACW implemented;

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mouse and cursor selection in ACWindow implemented; double Tab inserts current
selection and closes ACW (similar to double-click and Return); scroll wheel now
works in ACW.  Added AutoComplete instructions to IDLE Help.
This commit is contained in:
Kurt B. Kaiser 2007-02-08 22:58:18 +00:00
parent 4c11a92625
commit 209de1f6ca
3 changed files with 103 additions and 21 deletions
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42
Lib/idlelib/AutoCompleteWindow.py
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@ -10,13 +10,14 @@
KEYPRESS_VIRTUAL_EVENT_NAME = "<<autocompletewindow-keypress>>"
# We need to bind event beyond <Key> so that the function will be called
# before the default specific IDLE function
KEYPRESS_SEQUENCES = ("<Key>", "<Key-BackSpace>", "<Key-Return>",
"<Key-Up>", "<Key-Down>", "<Key-Home>", "<Key-End>")
KEYPRESS_SEQUENCES = ("<Key>", "<Key-BackSpace>", "<Key-Return>", "<Key-Tab>",
"<Key-Up>", "<Key-Down>", "<Key-Home>", "<Key-End>",
"<Key-Prior>", "<Key-Next>")
KEYRELEASE_VIRTUAL_EVENT_NAME = "<<autocompletewindow-keyrelease>>"
KEYRELEASE_SEQUENCE = "<KeyRelease>"
LISTUPDATE_SEQUENCE = "<ButtonRelease>"
LISTUPDATE_SEQUENCE = "<B1-ButtonRelease>"
WINCONFIG_SEQUENCE = "<Configure>"
DOUBLECLICK_SEQUENCE = "<Double-ButtonRelease>"
DOUBLECLICK_SEQUENCE = "<B1-Double-ButtonRelease>"
class AutoCompleteWindow:
@ -49,6 +50,8 @@ def __init__(self, widget):
# event ids
self.hideid = self.keypressid = self.listupdateid = self.winconfigid \
= self.keyreleaseid = self.doubleclickid = None
# Flag set if last keypress was a tab
self.lastkey_was_tab = False
def _change_start(self, newstart):
i = 0
@ -118,11 +121,6 @@ def _selection_changed(self):
i = 0
while i < len(lts) and i < len(selstart) and lts[i] == selstart[i]:
i += 1
previous_completion = self.completions[cursel - 1]
while cursel > 0 and selstart[:i] <= previous_completion:
i += 1
if selstart == previous_completion:
break # maybe we have a duplicate?
newstart = selstart[:i]
self._change_start(newstart)
@ -206,7 +204,7 @@ def show_window(self, comp_lists, index, complete, mode, userWantsWin):
self.keyrelease_event)
self.widget.event_add(KEYRELEASE_VIRTUAL_EVENT_NAME,KEYRELEASE_SEQUENCE)
self.listupdateid = listbox.bind(LISTUPDATE_SEQUENCE,
self.listupdate_event)
self.listselect_event)
self.winconfigid = acw.bind(WINCONFIG_SEQUENCE, self.winconfig_event)
self.doubleclickid = listbox.bind(DOUBLECLICK_SEQUENCE,
self.doubleclick_event)
@ -237,11 +235,12 @@ def hide_event(self, event):
return
self.hide_window()
def listupdate_event(self, event):
def listselect_event(self, event):
if not self.is_active():
return
self.userwantswindow = True
self._selection_changed()
cursel = int(self.listbox.curselection()[0])
self._change_start(self.completions[cursel])
def doubleclick_event(self, event):
# Put the selected completion in the text, and close the list
@ -257,7 +256,8 @@ def keypress_event(self, event):
state = event.mc_state
else:
state = 0
if keysym != "Tab":
self.lastkey_was_tab = False
if (len(keysym) == 1 or keysym in ("underscore", "BackSpace")
or (self.mode==AutoComplete.COMPLETE_FILES and keysym in
("period", "minus"))) \
@ -339,13 +339,21 @@ def keypress_event(self, event):
self.listbox.select_clear(cursel)
self.listbox.select_set(newsel)
self._selection_changed()
self._change_start(self.completions[newsel])
return "break"
elif (keysym == "Tab" and not state):
# The user wants a completion, but it is handled by AutoComplete
# (not AutoCompleteWindow), so ignore.
self.userwantswindow = True
return
if self.lastkey_was_tab:
# two tabs in a row; insert current selection and close acw
cursel = int(self.listbox.curselection()[0])
self._change_start(self.completions[cursel])
self.hide_window()
return "break"
else:
# first tab; let AutoComplete handle the completion
self.userwantswindow = True
self.lastkey_was_tab = True
return
elif reduce(lambda x, y: x or y,
[keysym.find(s) != -1 for s in ("Shift", "Control", "Alt",