mirror of
https://github.com/Apress/foundations-of-pygtk-development.git
synced 2025-07-21 11:51:10 +02:00
66 lines
2.2 KiB
Python
66 lines
2.2 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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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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self.resize(300, 100)
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# create a grid
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grid1 = Gtk.Grid()
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grid1.height = 2
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grid1.width = 2
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grid1.set_column_homogeneous(True)
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grid1.set_row_homogeneous(True)
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self.add(grid1)
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# build the aligned labels
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label1 = Gtk.Label('Top left Aligned')
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label1.can_focus = False
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label1.set_halign(Gtk.Align.START)
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label1.set_valign(Gtk.Align.START)
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grid1.attach(label1, 0, 0, 1, 1)
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label2 = Gtk.Label('Top right Aligned')
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label2.can_focus = False
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label2.set_halign(Gtk.Align.END)
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label2.set_valign(Gtk.Align.START)
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grid1.attach(label2, 1, 0, 1, 1)
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label3 = Gtk.Label('Bottom left Aligned')
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label3.can_focus = False
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label3.set_halign(Gtk.Align.START)
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label3.set_valign(Gtk.Align.END)
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grid1.attach(label3, 0, 1, 1, 1)
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label4 = Gtk.Label('Bottom right Aligned')
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label4.can_focus = False
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label4.set_halign(Gtk.Align.END)
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label4.set_valign(Gtk.Align.END)
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grid1.attach(label4, 1, 1, 1, 1)
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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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gtk_version = float(str(Gtk.MAJOR_VERSION)+'.'+str(Gtk.MINOR_VERSION))
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if gtk_version < 3.16:
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print('There is a bug in versions of GTK older that 3.16.')
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print('Your version is not new enough to prevent this bug from')
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print('causing problems in the display of this solution.')
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exit(0)
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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,
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title="Alignment")
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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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