113 lines
3.8 KiB
Python
Executable File
113 lines
3.8 KiB
Python
Executable File
#!/usr/bin/env python
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# [SNIPPET_NAME: gtk3 treeview using a treestore]
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# [SNIPPET_CATEGORIES: gtk3]
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# [SNIPPET_TAGS: widgets, gtk3]
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# [SNIPPET_DESCRIPTION: GTK3 treeview in treestore, show the data in a expandable hierarchy]
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# [SNIPPET_AUTHOR: Oliver Marks ]
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# [SNIPPET_LICENSE: GPL]
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from gi.repository import Gtk, GLib
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class application_gui:
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"""Tutorial 10 text input, display a treeview in expandable tree format."""
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count = 0
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def __init__(self):
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#load in our glade interface
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xml = Gtk.Builder()
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xml.add_from_file('tut10.glade')
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#grab our widget using get_object this is the name of the widget from glade, window1 is the default name
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self.window = xml.get_object('window1')
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self.text = xml.get_object('entry1')
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#load our widgets from the glade file
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self.widgets = {}
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self.widgets['treeview'] = xml.get_object('treeview1')
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treeview(self.widgets['treeview'], self.text)
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#connect to events, in this instance just quit our application
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self.window.connect('delete_event', Gtk.main_quit)
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self.window.connect('destroy', lambda quit: Gtk.main_quit())
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#show the window else there is nothing to see :)
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self.window.show()
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class treeview:
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treeview = None
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treemodel = None
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selected = 'workspace'
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def __init__(self, treeview, entry):
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self.entry = entry
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self.treeview = treeview
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self.treeview.connect('row-activated', self.selection)
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self.treeview.connect('button_press_event', self.mouse_click)
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#create a storage model in this case a treemodel
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self.treemodel = Gtk.TreeStore(str)
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self.treeview.set_model(self.treemodel)
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#add columns usually only one in case of the treeview
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column = Gtk.TreeViewColumn("Objects")
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self.treeview.append_column(column)
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#add in a text renderer so we can see the items we add
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cell = Gtk.CellRendererText()
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column.pack_start(cell, False)
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column.add_attribute(cell, "text", 0)
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self.populate()
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self.menu()
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def populate(self):
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self.treemodel.clear()
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#populate the treeview with a largish tree
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for item1 in range(0, 5):
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iter_level_1 = self.append_tree('Item ' + str(item1))
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for item2 in range(0, 5):
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iter_level_2 = self.append_tree('Sub Item ' + str(item2), iter_level_1)
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for item3 in range(0, 5):
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self.append_tree('Sub Sub Item ' + str(item3), iter_level_2)
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def append_tree(self, name, parent=None):
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"""
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append to the treeview if parent is null append to root level.
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if parent is a valid iter (possibly returned from previous append) then append under the parent
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"""
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myiter = self.treemodel.insert_after(parent, None)
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self.treemodel.set_value(myiter, 0, name)
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return myiter
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def menu(self):
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"""
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popover menu shown on right clicking a treeview item.
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"""
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self.treeview_menu = Gtk.Menu()
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for item in range(0, 5):
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menu_item = Gtk.MenuItem("Menu " + str(item))
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self.treeview_menu.append(menu_item)
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def mouse_click(self, tv, event):
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if event.button == 3:
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# right mouse button pressed popup the menu
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self.treeview_menu.show_all()
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self.treeview_menu.popup(None, None, None, None, 1, 0)
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def selection(self, tv, treepath, tvcolumn):
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"""
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on double click get the value of the item we clicked
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"""
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model = tv.get_model()
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treeiter = model.get_iter(treepath)
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self.selected = model.get_value(treeiter, 0)
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self.entry.set_text(self.selected)
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application = application_gui()
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Gtk.main()
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