Gtk set_tab_reorderable重繪標籤

Question

我是pygtk的第一次使用者。我修改了gtk文檔中的一些現有代碼以添加標籤拖動功能，但標籤不會在拖動時重新繪製，而是會變成白色。我如何重繪它？

#!/usr/bin/env python 

# example notebook.py 

import gtk 

class NotebookExample: 
    # This method rotates the position of the tabs 
    def rotate_book(self, button, notebook): 
     notebook.set_tab_pos((notebook.get_tab_pos()+1) %4) 

    # Add/Remove the page tabs and the borders 
    def tabsborder_book(self, button, notebook): 
     tval = gtk.FALSE 
     bval = gtk.FALSE 
     if self.show_tabs == gtk.FALSE: 
      tval = gtk.TRUE 
     if self.show_border == gtk.FALSE: 
      bval = gtk.TRUE 

     notebook.set_show_tabs(tval) 
     self.show_tabs = tval 
     notebook.set_show_border(bval) 
     self.show_border = bval 

    # Remove a page from the notebook 
    def remove_book(self, button, notebook): 
     page = notebook.get_current_page() 
     notebook.remove_page(page) 
     # Need to refresh the widget -- 
     # This forces the widget to redraw itself. 
     notebook.draw((0,0,-1,-1)) 

    def delete(self, widget, event=None): 
     gtk.mainquit() 
     return gtk.FALSE 

    def __init__(self): 
     window = gtk.Window(gtk.WINDOW_TOPLEVEL) 
     window.connect("delete_event", self.delete) 
     window.set_border_width(10) 

     table = gtk.Table(3,6,gtk.FALSE) 
     window.add(table) 

     # Create a new notebook, place the position of the tabs 
     notebook = gtk.Notebook() 
     notebook.set_tab_pos(gtk.POS_TOP) 
     table.attach(notebook, 0,6,0,1) 
     notebook.show() 
     self.show_tabs = gtk.TRUE 
     self.show_border = gtk.TRUE 

     # Let's append a bunch of pages to the notebook 
     for i in range(5): 
      bufferf = "Append Frame %d" % (i+1) 
      bufferl = "Page %d" % (i+1) 

      frame = gtk.Frame(bufferf) 
      frame.set_border_width(10) 
      frame.set_usize(100, 75) 
      frame.show() 

      label = gtk.Label(bufferf) 
      frame.add(label) 
      label.show() 

      label = gtk.Label(bufferl) 
      notebook.append_page(frame, label) 
      notebook.set_tab_reorderable(frame, True) 

     # Now let's add a page to a specific spot 
     checkbutton = gtk.CheckButton("Check me please!") 
     checkbutton.set_usize(100, 75) 
     checkbutton.show() 

     label = gtk.Label("Add page") 
     notebook.insert_page(checkbutton, label, 2) 

     # Now finally let's prepend pages to the notebook 
     for i in range(5): 
      bufferf = "Prepend Frame %d" % (i+1) 
      bufferl = "PPage %d" % (i+1) 

      frame = gtk.Frame(bufferf) 
      frame.set_border_width(10) 
      frame.set_usize(100, 75) 
      frame.show() 

      label = gtk.Label(bufferf) 
      frame.add(label) 
      label.show() 

      label = gtk.Label(bufferl) 
      notebook.prepend_page(frame, label) 

     # Set what page to start at (page 4) 
     notebook.set_page(3) 

     # Create a bunch of buttons 
     button = gtk.Button("close") 
     button.connect("clicked", self.delete) 
     table.attach(button, 0,1,1,2) 
     button.show() 

     button = gtk.Button("next page") 
     button.connect("clicked", notebook.next_page) 
     table.attach(button, 1,2,1,2) 
     button.show() 

     button = gtk.Button("prev page") 
     button.connect("clicked", notebook.prev_page) 
     table.attach(button, 2,3,1,2) 
     button.show() 

     button = gtk.Button("tab position") 
     button.connect("clicked", self.rotate_book, notebook) 
     table.attach(button, 3,4,1,2) 
     button.show() 

     button = gtk.Button("tabs/border on/off") 
     button.connect("clicked", self.tabsborder_book, notebook) 
     table.attach(button, 4,5,1,2) 
     button.show() 

     button = gtk.Button("remove page") 
     button.connect("clicked", self.remove_book, notebook) 
     table.attach(button, 5,6,1,2) 
     button.show() 

     table.show() 
     window.show() 

def main(): 
    gtk.mainloop() 
    return 0 

if __name__ == "__main__": 
    NotebookExample() 
    main() 

Answer 1

樣品是有點馬車（Next和Prev按鈕不適合我，因爲有給出回調很多參數），但除此之外，移動任何「第x頁」（而不是「PPAGE x「）頁面按預期工作。我在GNU/Linux下使用GTK 2.24.17（Mageia 3）。