我想在Gtk.TreeView的表格中显示我的MySQL数据库数据。我正在使用Glade& PyGTK的。那么,如何在滚动窗口小部件中的TreeView小部件中显示数据。
Please check the image here to see the Glade UI I've designed
我只是想弄乱这段代码 -
from gi.repository import Gtk
#list of tuples for each software, containing the software name, initial release, and main programming languages used
software_list = [("Fireox", 2002, "C++"),
("Eclipse", 2004, "Java" ),
("Pitivi", 2004, "Python"),
("Netbeans", 1996, "Java"),
("Chrome", 2008, "C++"),
("Filezilla", 2001, "C++"),
("Bazaar", 2005, "Python"),
("Git", 2005, "C"),
("Linux Kernel", 1991, "C"),
("GCC", 1987, "C"),
("Frostwire", 2004, "Java")]
class TreeViewFilterWindow(Gtk.TreeView):
def __init__(self):
Gtk.ScrolledWindow.__init__(scrolledwindow1)
scrolledwindow1.set_border_width(10)
#Setting up the self.grid in which the elements are to be positionned
scrolledwindow1.grid = Gtk.Grid()
scrolledwindow1.grid.set_column_homogeneous(True)
scrolledwindow1.grid.set_row_homogeneous(True)
scrolledwindow1.add(self.grid)
#Creating the ListStore model
self.software_liststore = Gtk.ListStore(str, int, str)
for software_ref in software_list:
scrolledwindow1.software_liststore.append(list(software_ref))
scrolledwindow1.current_filter_language = None
#Creating the filter, feeding it with the liststore model
scrolledwindow1.language_filter = self.software_liststore.filter_new()
#setting the filter function, note that we're not using the
scrolledwindow1.language_filter.set_visible_func(self.language_filter_func)
#creating the treeview, making it use the filter as a model, and adding the columns
scrolledwindow1.treeview = Gtk.TreeView.new_with_model(self.language_filter)
for i, column_title in enumerate(["Software", "Release Year", "Programming Language"]):
renderer = Gtk.CellRendererText()
column = Gtk.TreeViewColumn(column_title, renderer, text=i)
scrolledwindow1.treeview.append_column(column)
#creating buttons to filter by programming language, and setting up their events
scrolledwindow1.buttons = list()
for prog_language in ["Java", "C", "C++", "Python", "None"]:
button = Gtk.Button(prog_language)
scrolledwindow1.buttons.append(button)
button.connect("clicked", self.on_selection_button_clicked)
#setting up the layout, putting the treeview in a scrollwindow, and the buttons in a row
scrolledwindow1.scrollable_treelist = Gtk.ScrolledWindow()
scrolledwindow1.scrollable_treelist.set_vexpand(True)
scrolledwindow1.grid.attach(self.scrollable_treelist, 0, 0, 8, 10)
scrolledwindow1.grid.attach_next_to(self.buttons[0], self.scrollable_treelist, Gtk.PositionType.BOTTOM, 1, 1)
for i, button in enumerate(self.buttons[1:]):
scrolledwindow1.grid.attach_next_to(button, self.buttons[i], Gtk.PositionType.RIGHT, 1, 1)
scrolledwindow1.scrollable_treelist.add(self.treeview)
scrolledwindow1.show_all()
def language_filter_func(self, model, iter, data):
"""Tests if the language in the row is the one in the filter"""
if scrolledwindow1.current_filter_language is None or self.current_filter_language == "None":
return True
else:
return model[iter][2] == self.current_filter_language
def on_selection_button_clicked(self, widget):
"""Called on any of the button clicks"""
#we set the current language filter to the button's label
scrolledwindow1.current_filter_language = widget.get_label()
print("%s language selected!" % self.current_filter_language)
#we update the filter, which updates in turn the view
scrolledwindow1.language_filter.refilter()
builder = Gtk.Builder()
builder.add_from_file("soft.glade")
win = builder.get_object("window1")
#win = Gtk.TreeView()
win = TreeViewFilterWindow()
window = builder.get_object("window1")
scrolledwindow1 = builder.get_object("scrolledwindow1")
window.connect("delete-event", Gtk.main_quit)
window.show_all()
Gtk.main()