QTreeWidget to Mirror python Dictionary

Question

Is there a way to make a QTreeWidget mirror the changes made to an internal data structure such as dictionary? It seems like they would have created this funct

Answer 1

I found recursion makes it pretty slow while making a tree structure of a huge directory structure. The below method might help.

  def update_right_dock(self, file_list):   
            obj_list = []
            maps = []
            level = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14]         #Stores Maximum and Current Levels For The TreeWidget
            level_name = ["", "", "", "", "", "", "", "", "", "", "", "", "", ""]   #Stores Previous File Path To Compare before adding file or folder to tree
            tree.clear()
            prev = ""
            tot_len = 2

            p = 0
            for file in file_list:
                if(os.path.isdir(file)):
                    is_file = 0
                else:
                    is_file = 1

                tmp_map = []

                file = file[1:]
                abs_path = file.split('/')
                abs_path_len = len(abs_path)
                filename = abs_path[-1]

                if(prev == file[:tot_len - 1]):
                    #print("LOOOOOOOOOOOOP ------ 1")
                    while (i < abs_path_len - 1):
                        level[level_counter + 1] = QTreeWidgetItem(level[level_counter], [abs_path[i]])

                        tmp_map.append(level[level_counter + 1])
                        tmp_map.append(level_counter + 1)
                        tmp_map.append(1)
                        obj_list.append(tmp_map)
                        tmp_map = []

                        level[level_counter + 1].setCheckState(0, Qt.Checked)
                        tree.expandItem(level[level_counter + 1])
                        level_counter = level_counter + 1
                        level_name[i] = abs_path[i]
                        i = i + 1
                    level[level_counter + 1] = QTreeWidgetItem(level[level_counter], [abs_path[i]])

                    tmp_map.append(level[level_counter + 1])
                    tmp_map.append(level_counter + 1)
                    tmp_map.append(0)
                    obj_list.append(tmp_map)
                    tmp_map = []

                    level[level_counter + 1].setCheckState(0, Qt.Checked)
                    tree.expandItem(level[level_counter + 1])

                    file_len = len(filename)
                    tot_len = len(file) - file_len
                    prev = file[:tot_len - 1]
                    continue


                len2 = len(level_name)
                k = 0
                while k < abs_path_len and k < len2:
                    if (level_name[k] == abs_path[k]):
                        k  = k + 1
                        continue
                    break
                level_counter = k + 1
                i = level_counter - 1
                while k < abs_path_len:
                    level_name[k] = abs_path[k]
                    k = k + 1

                if level_counter > 1:
                    #print("LOOOOOOOOOOOOP ------ 2")
                    if(i == abs_path_len - 1):
                        level_counter = level_counter - 1
                    while i < abs_path_len - 1:
                        level[level_counter] = QTreeWidgetItem(level[level_counter - 1], [abs_path[i]])

                        tmp_map.append(level[level_counter])
                        tmp_map.append(level_counter)
                        tmp_map.append(1)
                        obj_list.append(tmp_map)
                        tmp_map = []

                        level[level_counter].setCheckState(0, Qt.Checked)
                        tree.expandItem(level[level_counter])
                        level_counter = level_counter + 1
                        level_name[i] = abs_path[i]

                        i = i + 1
                        if i == abs_path_len - 1:
                                level_counter = level_counter - 1

                    level[level_counter + 1] = QTreeWidgetItem(level[level_counter], [abs_path[i]])

                    tmp_map.append(level[level_counter + 1])
                    tmp_map.append(level_counter + 1)
                    tmp_map.append(0)
                    obj_list.append(tmp_map)
                    tmp_map = []

                    level[level_counter + 1].setCheckState(0, Qt.Checked)
                    tree.expandItem(level[level_counter + 1])

                    file_len = len(filename)
                    tot_len = len(file) - file_len
                    prev = file[:tot_len - 1]
                    continue

                if(abs_path_len == 1):
                    level[level_counter + 1] = QTreeWidgetItem(tree, [abs_path[i]])

                    tmp_map.append(level[level_counter + 1])
                    tmp_map.append(level_counter + 1)
                    tmp_map.append(0)
                    obj_list.append(tmp_map)
                    tmp_map = []

                    level[level_counter + 1].setCheckState(0, Qt.Checked)
                    tree.expandItem(level[level_counter + 1])
                    continue

                i = 1    
                #print("LOOOOOOOOOOOOP ------ 3")
                level[level_counter] = QTreeWidgetItem(tree, [abs_path[0]])

                tmp_map.append(level[level_counter])
                tmp_map.append(level_counter)
                tmp_map.append(1)
                obj_list.append(tmp_map)
                tmp_map = []

                level[level_counter].setCheckState(0, Qt.Checked)
                tree.expandItem(level[level_counter])
                level_name[level_counter - 1] = abs_path[0]       

                while i < abs_path_len - 1:
                    level[level_counter + 1] = QTreeWidgetItem(level[level_counter], [abs_path[i]])
                    tmp_map.append(level[level_counter + 1])
                    tmp_map.append(level_counter + 1)
                    tmp_map.append(1)
                    obj_list.append(tmp_map)
                    tmp_map = []

                    level[level_counter + 1].setCheckState(0, Qt.Checked)
                    tree.expandItem(level[level_counter + 1])
                    level_counter = level_counter + 1
                    level_name[i] = abs_path[i]
                    if i == abs_path_len - 1:
                            level_counter = level_counter - 1
                    i = i + 1

                level[level_counter + 1] = QTreeWidgetItem(level[level_counter], [abs_path[i]])
                tmp_map.append(level[level_counter + 1])
                tmp_map.append(level_counter + 1)
                tmp_map.append(0)
                obj_list.append(tmp_map)
                tmp_map = []

                level[level_counter + 1].setCheckState(0, Qt.Checked)
                tree.expandItem(level[level_counter + 1])
                level_name[i] = abs_path[i]

                file_len = len(filename)
                tot_len = len(file) - file_len
                prev = file[:tot_len - 1]
                p = p + 1