101 lines
3.1 KiB
Python
101 lines
3.1 KiB
Python
from tkinter import TclError
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from idlelib import searchengine
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from idlelib.searchbase import SearchDialogBase
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def _setup(text):
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"Create or find the singleton SearchDialog instance."
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root = text._root()
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engine = searchengine.get(root)
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if not hasattr(engine, "_searchdialog"):
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engine._searchdialog = SearchDialog(root, engine)
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return engine._searchdialog
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def find(text):
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"Handle the editor edit menu item and corresponding event."
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pat = text.get("sel.first", "sel.last")
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return _setup(text).open(text, pat) # Open is inherited from SDBase.
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def find_again(text):
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"Handle the editor edit menu item and corresponding event."
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return _setup(text).find_again(text)
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def find_selection(text):
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"Handle the editor edit menu item and corresponding event."
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return _setup(text).find_selection(text)
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class SearchDialog(SearchDialogBase):
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def create_widgets(self):
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SearchDialogBase.create_widgets(self)
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self.make_button("Find Next", self.default_command, 1)
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def default_command(self, event=None):
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if not self.engine.getprog():
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return
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self.find_again(self.text)
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def find_again(self, text):
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if not self.engine.getpat():
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self.open(text)
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return False
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if not self.engine.getprog():
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return False
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res = self.engine.search_text(text)
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if res:
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line, m = res
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i, j = m.span()
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first = "%d.%d" % (line, i)
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last = "%d.%d" % (line, j)
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try:
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selfirst = text.index("sel.first")
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sellast = text.index("sel.last")
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if selfirst == first and sellast == last:
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self.bell()
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return False
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except TclError:
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pass
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text.tag_remove("sel", "1.0", "end")
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text.tag_add("sel", first, last)
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text.mark_set("insert", self.engine.isback() and first or last)
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text.see("insert")
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return True
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else:
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self.bell()
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return False
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def find_selection(self, text):
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pat = text.get("sel.first", "sel.last")
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if pat:
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self.engine.setcookedpat(pat)
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return self.find_again(text)
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def _search_dialog(parent): # htest #
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"Display search test box."
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from tkinter import Toplevel, Text
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from tkinter.ttk import Button
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box = Toplevel(parent)
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box.title("Test SearchDialog")
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x, y = map(int, parent.geometry().split('+')[1:])
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box.geometry("+%d+%d" % (x, y + 175))
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text = Text(box, inactiveselectbackground='gray')
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text.pack()
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text.insert("insert","This is a sample string.\n"*5)
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def show_find():
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text.tag_add('sel', '1.0', 'end')
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_setup(text).open(text)
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text.tag_remove('sel', '1.0', 'end')
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button = Button(box, text="Search (selection ignored)", command=show_find)
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button.pack()
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if __name__ == '__main__':
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from unittest import main
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main('idlelib.idle_test.test_search', verbosity=2, exit=False)
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from idlelib.idle_test.htest import run
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run(_search_dialog)
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