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https://github.com/Apress/foundations-of-pygtk-development.git
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48 lines
1.5 KiB
Python
48 lines
1.5 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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from gi.repository import Pango
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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(10)
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label = Gtk.Label("Look at the font!")
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initial_font = Pango.font_description_from_string("Sans Bold 12")
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label.modify_font(initial_font)
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button = Gtk.FontButton.new_with_font("Sans Bold 12")
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button.set_title("Choose a Font")
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button.connect("font_set", self.on_font_changed, label)
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vbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=0)
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vbox.pack_start(button, False, False, 0)
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vbox.pack_start(label, False, False, 0)
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self.add(vbox)
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def on_font_changed(self, button, label):
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font = button.get_font()
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desc = Pango.font_description_from_string(font)
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buffer = "Font: " + font
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label.set_text(buffer)
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label.modify_font(desc)
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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="Font Button")
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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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