mirror of
https://github.com/Apress/foundations-of-pygtk-development.git
synced 2025-07-21 20:01:08 +02:00
129 lines
4.9 KiB
Python
129 lines
4.9 KiB
Python
#!/usr/bin/python3
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import sys
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import gi
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gi.require_version('Gtk', '3.0')
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from gi.repository import Gtk
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import time
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class assistant(Gtk.Assistant):
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progress = None
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.set_size_request(450, 300)
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self.set_title("Gtk.Assistant Example")
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self.connect("destroy", Gtk.main_quit, None)
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# create page 0
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page0_widget = Gtk.Label("This in an example of a Gtk.Assistant. By\n" +
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"clicking the forward button, you can " +
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"continue\nto the next section!")
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self.append_page(page0_widget)
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self.set_page_title(page0_widget, "Introduction")
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self.set_page_type(page0_widget, Gtk.AssistantPageType.INTRO)
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self.set_page_complete(page0_widget, True)
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# create page 1
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page1_widget = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL, spacing=5)
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label = Gtk.Label("Your Name: ")
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entry = Gtk.Entry()
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page1_widget.pack_start(label, False, False, 5)
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page1_widget.pack_start(entry, False, False, 5)
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self.append_page(page1_widget)
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self.set_page_title(page1_widget, "")
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self.set_page_type(page1_widget, Gtk.AssistantPageType.CONTENT)
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self.set_page_complete(page1_widget, False)
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# create page 2
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page2_widget = Gtk.CheckButton.new_with_label("Click me to Continue!")
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self.append_page(page2_widget)
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self.set_page_title(page2_widget, "Click the Check Button")
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self.set_page_type(page2_widget, Gtk.AssistantPageType.CONTENT)
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self.set_page_complete(page2_widget, False)
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# create page 3
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page3_widget = Gtk.Alignment.new(0.5, 0.5, 0.0, 0.0)
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button = Gtk.Button.new_with_label("Click Me!")
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self.progress = Gtk.ProgressBar()
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hbox = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL, spacing=5)
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hbox.pack_start(self.progress, True, False, 5)
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hbox.pack_start(button, False, False, 5)
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page3_widget.add(hbox)
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self.append_page(page3_widget)
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self.set_page_title(page3_widget, "Click the Check Button")
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self.set_page_type(page3_widget, Gtk.AssistantPageType.PROGRESS)
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self.set_page_complete(page3_widget, False)
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# create page 4
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page4_widget = Gtk.Label("Text has been entered in the label and the\n" +
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"combo box is clicked. If you are done, then\n" +
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"it is time to leave!")
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self.append_page(page4_widget)
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self.set_page_title(page4_widget, "Confirmation")
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self.set_page_type(page4_widget, Gtk.AssistantPageType.CONFIRM)
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self.set_page_complete(page4_widget, True)
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# set up the callbacks
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entry.connect("changed", self.entry_changed)
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page2_widget.connect("toggled", self.button_toggled)
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button.connect("clicked", self.button_clicked)
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self.connect("cancel", self.assistant_canceled)
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self.connect("close", self.assistant_close)
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def entry_changed(self, entry):
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text = entry.get_text()
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num = self.get_current_page()
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page = self.get_nth_page(num)
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self.set_page_complete(page, len(text) > 0)
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def button_toggled(self, toggle):
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active = toggle.get_active()
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self.set_page_complete(toggle, active)
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def button_clicked(self, button):
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percent = 0.0
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button.set_sensitive(False)
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page = self.get_nth_page(3)
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while (percent <= 100.0):
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message = str(percent) + " complete"
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print(message)
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self.progress.set_fraction(percent / 100.0)
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self.progress.set_text(message)
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while (Gtk.events_pending()):
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Gtk.main_iteration()
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time.sleep(1)
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percent += 5.0
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self.set_page_complete(page, True)
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def assistant_canceled(self, response):
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self.destroy()
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def assistant_close(self, response):
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print("You would apply your changes now!")
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self.destroy()
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class AppWindow(Gtk.ApplicationWindow):
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.set_border_width(25)
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button = Gtk.Button.new_with_mnemonic("_Open Assistant")
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button.connect("clicked", self.on_start_button_clicked)
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button.set_relief(Gtk.ReliefStyle.NORMAL)
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self.add(button)
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self.set_size_request(200, 100)
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def on_start_button_clicked(self, button):
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assistant()
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class Application(Gtk.Application):
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def __init__(self, *args, **kwargs):
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super().__init__(*args, application_id="org.example.myapp",
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**kwargs)
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self.window = None
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def do_activate(self):
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if not self.window:
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self.window = AppWindow(application=self, title="Gtk.Assistant")
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self.window.show_all()
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self.window.present()
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if __name__ == "__main__":
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app = Application()
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app.run(sys.argv)
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