PyGobject（七十二）Gtk.Widget之Gtk.SearchEntry

Gtk.SearchEntry

Gtk.SearchEntry搜索输入框

继承关系

Gtk.SearchEntry是Gtk.Entry的直接子类

Methods

方法修饰词 方法名及参数 static new () handle_event (event)

Virtual Methods

do_next_match () do_previous_match () do_search_changed () do_stop_search ()

Properties

Name Type Flags Short Description

Signals

Name Short Description next-match The ::next-match signal is a keybinding signal which gets emitted when the user initiates a move to the next match for the current search string. previous-match The ::previous-match signal is a keybinding signal which gets emitted when the user initiates a move to the previous match for the current search string. search-changed The Gtk.SearchEntry ::search-changed signal is emitted with a short delay of 150 milliseconds after the last change to the entry text. stop-search The ::stop-search signal is a keybinding signal which gets emitted when the user stops a search via keyboard input.

例子

一

代码：

#!/usr/bin/env python3# section 115# Created by xiaosanyu at 16/6/14TITLE = "SearchEntry"DESCRIPTION = """Gtk.SearchEntry is a subclass of Gtk.Entry that has been tailored for use as a search entry.SearchEntry' signal"""import gigi.require_version('Gtk', '3.0')from gi.repository import Gtk, GObjectclass SearchEntryWindow(Gtk.Window):    def __init__(self):        Gtk.Window.__init__(self, title="SearchEntry Demo")        self.set_size_request(200, 100)        grid = Gtk.Grid()        se = Gtk.SearchEntry()        se.connect("next_match", self.on_next_match)        se.connect("previous_match", self.on_previous_match)        se.connect("search_changed", self.on_search_changed)        se.connect("stop_search", self.on_stop_search)        self.label = Gtk.Label()        grid.attach(se, 0, 0, 1, 1)        grid.attach(self.label, 0, 1, 1, 1)        self.add(grid)    # Ctrl-g    def on_next_match(self, entry):        self.label.set_label("value:" + entry.get_text() + "\tsignal name:next_match")        print("next_match:", entry.get_text())    # Ctrl-Shift-g    def on_previous_match(self, entry):        self.label.set_label("value:" + entry.get_text() + "\tsignal name:previous_match")        print("previous_match:", entry.get_text())    def on_search_changed(self, entry):        self.label.set_label("value:" + entry.get_text() + "\tsignal name:search_changed")        print("search_changed:", entry.get_text())    # Esc    def on_stop_search(self, entry):        self.label.set_label("value:" + entry.get_text() + "\tsignal name:stop_search")        print("stop_search:", entry.get_text())def main():    win = SearchEntryWindow()    win.connect("delete-event", Gtk.main_quit)    win.show_all()    Gtk.main()if __name__ == "__main__":    main()

二

代码：

#!/usr/bin/env python3# section 116# -*- Mode: Python; py-indent-offset: 4 -*-# vim: tabstop=4 shiftwidth=4 expandtab## Copyright (C) 2010 Red Hat, Inc., John (J5) Palmieri <[e-mail]>## This library is free software; you can redistribute it and/or# modify it under the terms of the GNU Lesser General Public# License as published by the Free Software Foundation; either# version 2.1 of the License, or (at your option) any later version.## This library is distributed in the hope that it will be useful,# but WITHOUT ANY WARRANTY; without even the implied warranty of# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU# Lesser General Public License for more details.## You should have received a copy of the GNU Lesser General Public# License along with this library; if not, write to the Free Software# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301# USATITLE = "Search Entry"DESCRIPTION = """GtkEntry allows to display icons and progress information.This demo shows how to use these features in a search entry."""from gi.repository import Gtk, GObject(PIXBUF_COL, TEXT_COL) = range(2)class SearchboxApp:    def __init__(self):        self.window = Gtk.Dialog(title='Search Entry')        self.window.add_buttons(Gtk.STOCK_CLOSE, Gtk.ResponseType.NONE)        self.window.connect('response', lambda x, y: self.window.destroy())        self.window.connect('destroy', Gtk.main_quit)        content_area = self.window.get_content_area()        vbox = Gtk.VBox(spacing=5)        content_area.pack_start(vbox, True, True, 0)        vbox.set_border_width(5)        label = Gtk.Label()        label.set_markup('Search entry demo')        vbox.pack_start(label, False, False, 0)        hbox = Gtk.HBox(homogeneous=False, spacing=10)        hbox.set_border_width(0)        vbox.pack_start(hbox, True, True, 0)        # Create our entry        entry = Gtk.Entry()        hbox.pack_start(entry, False, False, 0)        # Create the find and cancel buttons        notebook = Gtk.Notebook()        self.notebook = notebook        notebook.set_show_tabs(False)        notebook.set_show_border(False)        hbox.pack_start(notebook, False, False, 0)        find_button = Gtk.Button(label='Find')        find_button.connect('clicked', self.start_search, entry)        notebook.append_page(find_button, None)        find_button.show()        cancel_button = Gtk.Button(label='Cancel')        cancel_button.connect('clicked', self.stop_search, entry)        notebook.append_page(cancel_button, None)        cancel_button.show()        # Set up the search icon        self.search_by_name(None, entry)        # Set up the clear icon        entry.set_icon_from_stock(Gtk.EntryIconPosition.SECONDARY,                                  Gtk.STOCK_CLEAR)        self.text_changed_cb(entry, None, find_button)        entry.connect('notify::text', self.text_changed_cb, find_button)        entry.connect('activate', self.activate_cb)        # Create the menu        menu = self.create_search_menu(entry)        entry.connect('icon-press', self.icon_press_cb, menu)        # FIXME: this should take None for the detach callback        #        but our callback implementation does not allow        #        it yet, so we pass in a noop callback        menu.attach_to_widget(entry, self.detach)        # add accessible alternatives for icon functionality        entry.connect('populate-popup', self.entry_populate_popup)        self.window.show_all()    def detach(self, *args):        pass    def show_find_button(self):        self.notebook.set_current_page(0)    def show_cancel_button(self):        self.notebook.set_current_page(1)    def search_progress(self, entry):        entry.progress_pulse()        return True    def search_progress_done(self, entry):        entry.set_progress_fraction(0.0)    def finish_search(self, button, entry):        self.show_find_button()        GObject.source_remove(self.search_progress_id)        self.search_progress_done(entry)        self.search_progress_id = 0        return False    def start_search_feedback(self, entry):        self.search_progress_id = GObject.timeout_add(100,                                                      self.search_progress,                                                      entry)        return False    def start_search(self, button, entry):        self.show_cancel_button()        self.search_progress_id = GObject.timeout_add_seconds(1,                                                              self.start_search_feedback,                                                              entry)        self.finish_search_id = GObject.timeout_add_seconds(15,                                                            self.finish_search,                                                            button)    def stop_search(self, button, entry):        GObject.source_remove(self.finish_search_id)        self.finish_search(button, entry)    def clear_entry_swapped(self, widget, entry):        self.clear_entry(entry)    def clear_entry(self, entry):        entry.set_text('')    def search_by_name(self, item, entry):        entry.set_icon_from_stock(Gtk.EntryIconPosition.PRIMARY,                                  Gtk.STOCK_FIND)        entry.set_icon_tooltip_text(Gtk.EntryIconPosition.PRIMARY,                                    'Search by name\n' +                                    'Click here to change the search type')    def search_by_description(self, item, entry):        entry.set_icon_from_stock(Gtk.EntryIconPosition.PRIMARY,                                  Gtk.STOCK_EDIT)        entry.set_icon_tooltip_text(Gtk.EntryIconPosition.PRIMARY,                                    'Search by description\n' +                                    'Click here to change the search type')    def search_by_file(self, item, entry):        entry.set_icon_from_stock(Gtk.EntryIconPosition.PRIMARY,                                  Gtk.STOCK_OPEN)        entry.set_icon_tooltip_text(Gtk.EntryIconPosition.PRIMARY,                                    'Search by file name\n' +                                    'Click here to change the search type')    def create_search_menu(self, entry):        menu = Gtk.Menu()        item = Gtk.ImageMenuItem.new_with_mnemonic('Search by _name')        image = Gtk.Image.new_from_stock(Gtk.STOCK_FIND, Gtk.IconSize.MENU)        item.set_image(image)        item.set_always_show_image(True)        item.connect('activate', self.search_by_name, entry)        menu.append(item)        item = Gtk.ImageMenuItem.new_with_mnemonic('Search by _description')        image = Gtk.Image.new_from_stock(Gtk.STOCK_EDIT, Gtk.IconSize.MENU)        item.set_image(image)        item.set_always_show_image(True)        item.connect('activate', self.search_by_description, entry)        menu.append(item)        item = Gtk.ImageMenuItem.new_with_mnemonic('Search by _file name')        image = Gtk.Image.new_from_stock(Gtk.STOCK_OPEN, Gtk.IconSize.MENU)        item.set_image(image)        item.set_always_show_image(True)        item.connect('activate', self.search_by_name, entry)        menu.append(item)        menu.show_all()        return menu    def icon_press_cb(self, entry, position, event, menu):        if position == Gtk.EntryIconPosition.PRIMARY:            menu.popup(None, None, None, None,                       event.button, event.time)        else:            self.clear_entry(entry)    def text_changed_cb(self, entry, pspec, button):        has_text = entry.get_text_length() > 0        entry.set_icon_sensitive(Gtk.EntryIconPosition.SECONDARY, has_text)        button.set_sensitive(has_text)    def activate_cb(self, entry, button):        if self.search_progress_id != 0:            return        self.start_search(button, entry)    def search_entry_destroyed(self, widget):        if self.finish_search_id != 0:            GObject.source_remove(self.finish_search_id)        if self.search_progress_id != 0:            GObject.source_remove(self.search_progress_id)        self.window = None    def entry_populate_popup(self, entry, menu):        has_text = entry.get_text_length() > 0        item = Gtk.SeparatorMenuItem()        item.show()        menu.append(item)        item = Gtk.MenuItem.new_with_mnemonic("C_lear")        item.show()        item.connect('activate', self.clear_entry_swapped, entry)        menu.append(item)        item.set_sensitive(has_text)        search_menu = self.create_search_menu(entry)        item = Gtk.MenuItem.new_with_label('Search by')        item.show()        item.set_submenu(search_menu)        menu.append(item)def main():    SearchboxApp()    Gtk.main()if __name__ == '__main__':    main()

代码下载地址：http://download.csdn.net/detail/a87b01c14/9594728