GTK 如何为 1 个 Liststore 创建 3 个不同的过滤器
GTK how to create 3 different filter for 1 Liststore
在 GTK/Python 中，我正在尝试构建与节点的接口。
这是photo of my interface
我创建了一个列表存储，我想过滤不同的东西。用户必须执行两个操作，首先，他必须在组合框中选择他想使用的过滤器类型，如果他想按节点类型、节点开始名称或其他方式进行过滤。
然后在文本条目中，他决定他想看什么信息。以节点类型为例。有 3 种不同类型的节点，节点类型 1、节点类型 2 和节点类型 3。作为用户，我只想看到节点类型 1，所以我在节点条目中写了 1。其实我有一个问题，是我的过滤器不起作用。
我首先创建了 2 个列表存储：
def create_liststore(self):
if len(self.FdessinCarto.pos) != 0:
for i,node in enumerate(self.FdessinCarto.pos):
self.node_liststore.append([str(node.title),self.controller.model.string_from_numdate(int(node.start_time)),self.controller.model.string_from_numdate(int(node.end_time)),str(node.node_group),str(node.description),str(node.attachment_list)])
self.edgelist = self.controller.get_edge_list()
if len(self.edgelist) !=0:
for i in self.edgelist:
edge_prop=self.controller.edge_data(i[0],i[1])
self.edge_liststore.append([edge_prop['label'],str(i[0].title),str(i[1].title),edge_prop['description'],edge_prop['attachment_list']])
#creating the treeview for Node, making it use the filter as a model, and adding the columns
self.treeviewNode = Gtk.TreeView.new_with_model(self.node_liststore)
for i, column_title in enumerate(["Name", "Beginning date", "End date", "Type of node", "Description of node","files"]):
self.Noderenderer = Gtk.CellRendererText()
self.Noderenderer.set_property("editable", True)
column = Gtk.TreeViewColumn(column_title, self.Noderenderer, text=i)
column.set_sort_column_id(0)
self.treeviewNode.append_column(column)
#creating the treeview for edge
self.treeviewEdge = Gtk.TreeView.new_with_model(self.edge_liststore)
for i, column_title in enumerate(["Name", "Node 1", "Node 2", "Description of edge","file"]):
self.Edgerenderer = Gtk.CellRendererText()
self.Edgerenderer.set_property("editable", True)
column = Gtk.TreeViewColumn(column_title, self.Edgerenderer, text=i)
column.set_sort_column_id(0)
self.treeviewEdge.append_column(column)
self.SWViewListStore.add(self.treeviewNode)
self.SWEdgeStore.add(self.treeviewEdge)
self.SWViewListStore.show_all()
self.SWEdgeStore.show_all()
我有 3 个不同的过滤器：
#creating the filtre
self.node_beginning_date_filter = self.node_liststore.filter_new()
self.node_end_date_filter = self.node_liststore.filter_new()
self.node_type_filter = self.node_liststore.filter_new()
#setting the filter function, note that we're not using the
self.node_end_date_filter.set_visible_func(self.node_end_date_filter_func)
self.node_beginning_date_filter.set_visible_func(self.node_beginning_date_filter_func)
self.node_type_filter.set_visible_func(self.node_type_filter_func)
一旦我更改了我的组合框，它就会激活我的功能，它采用组合过滤器的类型，然后还有组合框的文本：
def on_entryComboBox_changed(self,widget):
textComboFilter = self.View.combo_filter.get_active_text()
print("textComboFilter %s" %textComboFilter)
if textComboFilter == "Filter by node's beginning date":
#print("%s language selected!" % textComboFilter)
self.View.current_filter = textComboFilter
self.View.node_beginning_date_filter.refilter()
if textComboFilter == "Filter by node's end date":
#print("%s language selected!" % textComboFilter)
self.View.current_filter = textComboFilter
self.View.node_end_date_filter.refilter()
if textComboFilter == "Filter by type of node":
#print("%s language selected!" % textComboFilter)
self.View.current_filter = textComboFilter
self.View.node_type_filter.refilter()
而且它不起作用。
最后，
我设法自己回答了。
您应该构建一个过滤器而不是三个。对于有同样问题的人，这是一个很好的例子，可以帮助我解决问题。
import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk
#list of tuples for each software, containing the software name, initial release, and main programming languages used
software_list = [("Firefox", 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.Window):
def __init__(self):
Gtk.Window.__init__(self, title="Treeview Filter Demo")
self.set_border_width(10)
#Setting up the self.grid in which the elements are to be positionned
self.grid = Gtk.Grid()
self.grid.set_column_homogeneous(True)
self.grid.set_row_homogeneous(True)
self.add(self.grid)
#Creating the ListStore model
self.software_liststore = Gtk.ListStore(str, int, str)
for software_ref in software_list:
self.software_liststore.append(list(software_ref))
self.current_filter_language = None
#Creating the filter, feeding it with the liststore model
self.language_filter = self.software_liststore.filter_new()
#setting the filter function, note that we're not using the
self.language_filter.set_visible_func(self.language_filter_func)
#creating the treeview, making it use the filter as a model, and adding the columns
self.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)
self.treeview.append_column(column)
#creating buttons to filter by programming language, and setting up their events
self.buttons = list()
for prog_language in ["Java", "C", "C++", "Python", "None"]:
button = Gtk.Button(prog_language)
self.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
self.scrollable_treelist = Gtk.ScrolledWindow()
self.scrollable_treelist.set_vexpand(True)
self.grid.attach(self.scrollable_treelist, 0, 0, 8, 10)
self.grid.attach_next_to(self.buttons[0], self.scrollable_treelist, Gtk.PositionType.BOTTOM, 1, 1)
for i, button in enumerate(self.buttons[1:]):
self.grid.attach_next_to(button, self.buttons[i], Gtk.PositionType.RIGHT, 1, 1)
self.scrollable_treelist.add(self.treeview)
self.show_all()
def language_filter_func(self, model, iter, data):
"""Tests if the language in the row is the one in the filter"""
if self.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
self.current_filter_language = widget.get_label()
print("%s language selected!" % self.current_filter_language)
#we update the filter, which updates in turn the view
self.language_filter.refilter()
win = TreeViewFilterWindow()
win.connect("delete-event", Gtk.main_quit)
win.show_all()
Gtk.main()
在 GTK/Python 中，我正在尝试构建与节点的接口。
这是photo of my interface
我创建了一个列表存储，我想过滤不同的东西。用户必须执行两个操作，首先，他必须在组合框中选择他想使用的过滤器类型，如果他想按节点类型、节点开始名称或其他方式进行过滤。
然后在文本条目中，他决定他想看什么信息。以节点类型为例。有 3 种不同类型的节点，节点类型 1、节点类型 2 和节点类型 3。作为用户，我只想看到节点类型 1，所以我在节点条目中写了 1。其实我有一个问题，是我的过滤器不起作用。
我首先创建了 2 个列表存储：
def create_liststore(self):
if len(self.FdessinCarto.pos) != 0:
for i,node in enumerate(self.FdessinCarto.pos):
self.node_liststore.append([str(node.title),self.controller.model.string_from_numdate(int(node.start_time)),self.controller.model.string_from_numdate(int(node.end_time)),str(node.node_group),str(node.description),str(node.attachment_list)])
self.edgelist = self.controller.get_edge_list()
if len(self.edgelist) !=0:
for i in self.edgelist:
edge_prop=self.controller.edge_data(i[0],i[1])
self.edge_liststore.append([edge_prop['label'],str(i[0].title),str(i[1].title),edge_prop['description'],edge_prop['attachment_list']])
#creating the treeview for Node, making it use the filter as a model, and adding the columns
self.treeviewNode = Gtk.TreeView.new_with_model(self.node_liststore)
for i, column_title in enumerate(["Name", "Beginning date", "End date", "Type of node", "Description of node","files"]):
self.Noderenderer = Gtk.CellRendererText()
self.Noderenderer.set_property("editable", True)
column = Gtk.TreeViewColumn(column_title, self.Noderenderer, text=i)
column.set_sort_column_id(0)
self.treeviewNode.append_column(column)
#creating the treeview for edge
self.treeviewEdge = Gtk.TreeView.new_with_model(self.edge_liststore)
for i, column_title in enumerate(["Name", "Node 1", "Node 2", "Description of edge","file"]):
self.Edgerenderer = Gtk.CellRendererText()
self.Edgerenderer.set_property("editable", True)
column = Gtk.TreeViewColumn(column_title, self.Edgerenderer, text=i)
column.set_sort_column_id(0)
self.treeviewEdge.append_column(column)
self.SWViewListStore.add(self.treeviewNode)
self.SWEdgeStore.add(self.treeviewEdge)
self.SWViewListStore.show_all()
self.SWEdgeStore.show_all()
我有 3 个不同的过滤器：
#creating the filtre
self.node_beginning_date_filter = self.node_liststore.filter_new()
self.node_end_date_filter = self.node_liststore.filter_new()
self.node_type_filter = self.node_liststore.filter_new()
#setting the filter function, note that we're not using the
self.node_end_date_filter.set_visible_func(self.node_end_date_filter_func)
self.node_beginning_date_filter.set_visible_func(self.node_beginning_date_filter_func)
self.node_type_filter.set_visible_func(self.node_type_filter_func)
一旦我更改了我的组合框，它就会激活我的功能，它采用组合过滤器的类型，然后还有组合框的文本：
def on_entryComboBox_changed(self,widget):
textComboFilter = self.View.combo_filter.get_active_text()
print("textComboFilter %s" %textComboFilter)
if textComboFilter == "Filter by node's beginning date":
#print("%s language selected!" % textComboFilter)
self.View.current_filter = textComboFilter
self.View.node_beginning_date_filter.refilter()
if textComboFilter == "Filter by node's end date":
#print("%s language selected!" % textComboFilter)
self.View.current_filter = textComboFilter
self.View.node_end_date_filter.refilter()
if textComboFilter == "Filter by type of node":
#print("%s language selected!" % textComboFilter)
self.View.current_filter = textComboFilter
self.View.node_type_filter.refilter()
而且它不起作用。
最后，
我设法自己回答了。
您应该构建一个过滤器而不是三个。对于有同样问题的人，这是一个很好的例子，可以帮助我解决问题。
import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk
#list of tuples for each software, containing the software name, initial release, and main programming languages used
software_list = [("Firefox", 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.Window):
def __init__(self):
Gtk.Window.__init__(self, title="Treeview Filter Demo")
self.set_border_width(10)
#Setting up the self.grid in which the elements are to be positionned
self.grid = Gtk.Grid()
self.grid.set_column_homogeneous(True)
self.grid.set_row_homogeneous(True)
self.add(self.grid)
#Creating the ListStore model
self.software_liststore = Gtk.ListStore(str, int, str)
for software_ref in software_list:
self.software_liststore.append(list(software_ref))
self.current_filter_language = None
#Creating the filter, feeding it with the liststore model
self.language_filter = self.software_liststore.filter_new()
#setting the filter function, note that we're not using the
self.language_filter.set_visible_func(self.language_filter_func)
#creating the treeview, making it use the filter as a model, and adding the columns
self.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)
self.treeview.append_column(column)
#creating buttons to filter by programming language, and setting up their events
self.buttons = list()
for prog_language in ["Java", "C", "C++", "Python", "None"]:
button = Gtk.Button(prog_language)
self.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
self.scrollable_treelist = Gtk.ScrolledWindow()
self.scrollable_treelist.set_vexpand(True)
self.grid.attach(self.scrollable_treelist, 0, 0, 8, 10)
self.grid.attach_next_to(self.buttons[0], self.scrollable_treelist, Gtk.PositionType.BOTTOM, 1, 1)
for i, button in enumerate(self.buttons[1:]):
self.grid.attach_next_to(button, self.buttons[i], Gtk.PositionType.RIGHT, 1, 1)
self.scrollable_treelist.add(self.treeview)
self.show_all()
def language_filter_func(self, model, iter, data):
"""Tests if the language in the row is the one in the filter"""
if self.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
self.current_filter_language = widget.get_label()
print("%s language selected!" % self.current_filter_language)
#we update the filter, which updates in turn the view
self.language_filter.refilter()
win = TreeViewFilterWindow()
win.connect("delete-event", Gtk.main_quit)
win.show_all()
Gtk.main()