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