ComboBox(Python)

예제 결과를 만드는 코드

from gi.repository import Gtk
import sys

actions = [["Select", None],
           ["New", Gtk.STOCK_NEW],
           ["Open", Gtk.STOCK_OPEN],
           ["Save", Gtk.STOCK_SAVE]]


class MyWindow(Gtk.ApplicationWindow):

    def __init__(self, app):
        Gtk.Window.__init__(self, title="Welcome to GNOME", application=app)
        self.set_default_size(200, -1)
        self.set_border_width(10)

        # the data in the model, of type string on two columns
        listmodel = Gtk.ListStore(str, str)
        # append the data
        for i in range(len(actions)):
            listmodel.append(actions[i])

        # a combobox to see the data stored in the model
        combobox = Gtk.ComboBox(model=listmodel)

        # cellrenderers to render the data
        renderer_pixbuf = Gtk.CellRendererPixbuf()
        renderer_text = Gtk.CellRendererText()

        # we pack the cell into the beginning of the combobox, allocating
        # no more space than needed;
        # first the image, then the text;
        # note that it does not matter in which order they are in the model,
        # the visualization is decided by the order of the cellrenderers
        combobox.pack_start(renderer_pixbuf, False)
        combobox.pack_start(renderer_text, False)

        # associate a property of the cellrenderer to a column in the model
        # used by the combobox
        combobox.add_attribute(renderer_text, "text", 0)
        combobox.add_attribute(renderer_pixbuf, "stock_id", 1)

        # the first row is the active one at the beginning
        combobox.set_active(0)

        # connect the signal emitted when a row is selected to the callback
        # function
        combobox.connect("changed", self.on_changed)

        # add the combobox to the window
        self.add(combobox)

    def on_changed(self, combo):
        # if the row selected is not the first one, write on the terminal
        # the value of the first column in the model
        if combo.get_active() != 0:
            print("You chose " + str(actions[combo.get_active()][0]) + "\n")
        return True


class MyApplication(Gtk.Application):

    def __init__(self):
        Gtk.Application.__init__(self)

    def do_activate(self):
        win = MyWindow(self)
        win.show_all()

    def do_startup(self):
        Gtk.Application.do_startup(self)

app = MyApplication()
exit_status = app.run(sys.argv)
sys.exit(exit_status)

ComboBox 위젯에 쓸만한 함수

ComboBox 위젯은 모델/뷰/컨트롤러 설계 방식따라 설계했습니다. 모델에는 데이터가 들어가고요, View에는 바뀜 알림을 받아서 모델의 내용을 표시합니다. 마지막으로, 컨트롤러에서는, 모델의 상태를 바꾸고 뷰가 바뀌었다는걸 알리죠. ComboBox에서 쓸만한 메서드 목록 내용은 를 확인해보시죠.

45번째 줄에서, widget.connect(signal, callback function) 코드로 "changed" 시그널을 on_changed() 콜백 함수에 연결했습니다. 더 자세한 설명은 를 참조하십시오.

API 참고서

이 예제는 다음 참고자료가 필요합니다:

GtkComboBox

GtkListStore

GtkCellRendererText

GtkCellRendererPixbuf

스톡 항목

pygobject - GObject 인트로스펙션 파이썬 바인딩