Question

我正在使用PyGObject和GTK + 3处理一个简单的GUI应用程序。在这种情况下，我想要一个按钮，弹出一个对话框，当你单击OK时会添加一个项目到一个列表。我有那部分工作，但最后一部分不起作用是将项目添加到列表中。看来项目确实已添加，但它已空。它可以选择，但非常小。我尝试添加其他类型的小部件，如Gtk.Button，看看它是否与Gtk.Label有些奇怪。当我在构造函数中添加Gtk.Label时，它可以正常工作。

此外，我知道这不是一个很好的做事方式，我在代码中做的事情有些奇怪但我还在学习如何使用PyGObject / GTK +我想这个问题只是我忽视的愚蠢行为。

MainWindow.py

import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk
import PromptDialog

class MainWindow(Gtk.Window):
  def addURLResponse(self, dialog, response, listBox):
    if(response == Gtk.ResponseType.OK):
      print(dialog.get_text())
      label = Gtk.Label(dialog.get_text())
      print(label.get_text())

      listBox.add(label)


    if(response != Gtk.ResponseType.DELETE_EVENT):
      dialog.destroy()


  def addURL(self, button):
    URLDialog = PromptDialog.PromptDialog("Add URL", self)

    URLDialog.connect('response', self.addURLResponse, button.get_parent().get_parent().get_parent().get_children()[1])
    URLDialog.show_all()


  def __init__(self):
    Gtk.Window.__init__(self, title="MPV-VJ")

    self.playlistsBar = Gtk.FlowBox()
    self.newBtn = Gtk.Button.new_with_label('+')
    self.playlistsBar.add(self.newBtn)
    self.playlistsList = Gtk.ListBox()
    self.playlistsView = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=1)
    self.playlistsView.pack_start(self.playlistsBar, False, False, 0)
    self.playlistsView.pack_start(self.playlistsList, True, True, 0)

    self.playlist1View = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=1)
    self.playlist1Bar = Gtk.FlowBox()
    self.addUrl1Btn = Gtk.Button.new_with_label('+URL')
    self.addUrl1Btn.connect('clicked', self.addURL)
    self.playlist1Bar.add(self.addUrl1Btn)
    self.addFile1Btn = Gtk.Button.new_with_label('+file')
    self.playlist1Bar.add(self.addFile1Btn)
    self.addDir1Btn = Gtk.Button.new_with_label('+dir')
    self.playlist1Bar.add(self.addDir1Btn)
    self.playlist1List = Gtk.ListBox()
    self.playlist1View.pack_start(self.playlist1Bar, False, False, 0)
    self.playlist1View.pack_start(self.playlist1List, True, True, 0)    

    self.playlist2View = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=1)
    self.playlist2Bar = Gtk.FlowBox()
    self.addUrl2Btn = Gtk.Button.new_with_label('+URL')
    self.playlist2Bar.add(self.addUrl2Btn)
    self.addFile2Btn = Gtk.Button.new_with_label('+file')
    self.playlist2Bar.add(self.addFile2Btn)
    self.addDir2Btn = Gtk.Button.new_with_label('+dir')
    self.playlist2Bar.add(self.addDir2Btn)
    self.playlist2List = Gtk.ListBox()
    self.playlist2View.pack_start(self.playlist2Bar, False, False, 0)
    self.playlist2View.pack_start(self.playlist2List, True, True, 0)    

    self.plViewsBox = Gtk.HPaned()
    self.plViewsBox.pack1(self.playlist1View, True, False)
    self.plViewsBox.pack2(self.playlist2View, True, False)

    self.viewBox = Gtk.HPaned()
    self.viewBox.pack1(self.playlistsView, True, False)
    self.viewBox.pack2(self.plViewsBox, True, False)
    self.viewBox.set_position(200)

    self.logView = Gtk.ListBox()

    self.contentBox = Gtk.VPaned()
    self.contentBox.pack1(self.viewBox, True, False)
    self.contentBox.pack2(self.logView, True, False)
    self.contentBox.set_position(400)

    self.toolBar = Gtk.FlowBox()
    self.newBtn = Gtk.Button.new_with_label('new')
    self.toolBar.add(self.newBtn)
    self.loadBtn = Gtk.Button.new_with_label('load')
    self.toolBar.add(self.loadBtn)
    self.saveBtn = Gtk.Button.new_with_label('save')
    self.toolBar.add(self.saveBtn)

    self.mainBox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=1)
    self.mainBox.pack_start(self.toolBar, False, False, 0)
    self.mainBox.pack_start(self.contentBox, True, True, 0)

    self.add(self.mainBox)

    self.resize(1000, 500)

PromptDialog.py

import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk

class PromptDialog(Gtk.Dialog):
  def get_text(self):
    return(self.entry.get_buffer().get_text())

  def __init__(self, message, mainWindow):
    Gtk.Dialog.__init__(self, title="Prompt")

    self.set_modal(True)
    self.set_transient_for(mainWindow)

    self.label = Gtk.Label(message)
    self.entry = Gtk.Entry()
    self.get_content_area().pack_start(self.label, True, True, 0)
    self.get_content_area().pack_start(self.entry, True, True, 0)

    self.add_button("OK", Gtk.ResponseType.OK)
    self.add_button("Cancel", Gtk.ResponseType.CANCEL)

Answer 1

添加到窗口的窗口小部件需要在它出现之前调用其.show（）方法。

pygobject在信号回调中将项添加到容器

1 个答案: