I am having difficulty loading a file or displaying a colour in one of the columns of a Gtk TreeView (Python binding of GTK3). An example taken from QGIS shows a icon in the first row and a blue circle in the second row. The colour is taken from the layer properties:
My code looks like this but does not load the icon.png file in the same directory:
#!/usr/bin/python3 from gi.repository import Gtk, Gdk, GdkPixbuf class MyWindow(Gtk.Window): def __init__(self): Gtk.Window.__init__(self) self.set_default_size(200, 200) self.liststore = Gtk.ListStore(GdkPixbuf.Pixbuf, str) self.treeview = Gtk.TreeView(model=self.liststore) symbol1 = GdkPixbuf.Pixbuf.new_from_file("icon.png") self.liststore.append([symbol1, "This is a symbol1"]) symbol2 = Gtk.IconTheme.get_default().load_icon("gtk-cut", 64, 0) self.liststore.append([symbol2, "This is symbol2"]) px_renderer = Gtk.CellRendererPixbuf() px_column = Gtk.TreeViewColumn("Icon", px_renderer) self.treeview.append_column(px_column) str_renderer = Gtk.CellRendererText() str_column = Gtk.TreeViewColumn("Name", str_renderer, text=1) self.treeview.append_column(str_column) self.add(self.treeview) win = MyWindow() win.connect("delete-event", Gtk.main_quit) win.show_all() Gtk.main()
The documentation for GTK3 pixbuf is here:
Older examples for PyGTK are here, but something has really changed in how this is handled:
This problem can resolve similar as PyGTK2.0, you need to attach two objects of CellRendererText and CellRendererPixbuf on the one object of TreeViewColumn and then call set_cell_data_func method of column to set data returner function of cells. this is tiny complex(see below code):
from gi.repository import Gtk, Gdk, GdkPixbuf class MyWindow(Gtk.Window): def __init__(self): Gtk.Window.__init__(self) self.set_default_size(200, 200) self.liststore = Gtk.ListStore(str, str) self.treeview = Gtk.TreeView(model=self.liststore) self.liststore.append(["icon.png", "This is a symbol1"]) px_renderer = Gtk.CellRendererPixbuf() px_column = Gtk.TreeViewColumn('') px_column.pack_start(px_renderer, False) str_renderer = Gtk.CellRendererText() px_column.pack_start(str_renderer, False) # set data connector function/method px_column.set_cell_data_func(px_renderer, self.get_tree_cell_pixbuf) px_column.set_cell_data_func(str_renderer, self.get_tree_cell_text) self.treeview.append_column(px_column) self.add(self.treeview) def get_tree_cell_text(self, col, cell, model, iter, user_data): cell.set_property('text', model.get_value(iter, 1)) def get_tree_cell_pixbuf(self, col, cell, model, iter, user_data): cell.set_property('pixbuf', GdkPixbuf.Pixbuf.new_from_file(model.get_value(iter, 0))) if __name__ == '__main__': win = MyWindow() win.connect("delete-event", Gtk.main_quit) win.show_all() Gtk.main()
you can use documents of pygtk2.0 about TreeViewColumn.set_cell_data_func method and read important page about CellRenderers and special properties of PyGTK2.0 that can usefull on version 3 of PyGTK :)
Apparently all I was missing was "pixbuf = 0" indicating that the pixbuf is in the 0th column. This line of the example needs to be modified:
px_column = Gtk.TreeViewColumn("Icon", px_renderer, pixbuf=0)
