from ._tksheet_vars import *
from ._tksheet_formatters import *
from ._tksheet_other_classes import *

from itertools import islice, accumulate, chain, cycle, repeat
from collections import defaultdict
from math import floor, ceil
import bisect
import pickle
import tkinter as tk
import zlib


class ColumnHeaders(tk.Canvas):
    def __init__(self,
                 *args,
                 **kwargs):
        tk.Canvas.__init__(self,
                           kwargs['parentframe'],
                           background = kwargs['header_bg'],
                           highlightthickness = 0)
        self.parentframe = kwargs['parentframe']
        self.current_height = None    # is set from within MainTable() __init__ or from Sheet parameters
        self.MT = None         # is set from within MainTable() __init__
        self.RI = None    # is set from within MainTable() __init__
        self.TL = None                # is set from within TopLeftRectangle() __init__
        self.extra_begin_edit_cell_func = None
        self.extra_end_edit_cell_func = None
        self.text_editor = None
        self.text_editor_id = None
        self.text_editor_loc = None
        self.centre_alignment_text_mod_indexes = (slice(1, None), slice(None, -1))
        self.c_align_cyc = cycle(self.centre_alignment_text_mod_indexes)
        self.grid_cyctup = ("st", "end")
        self.grid_cyc = cycle(self.grid_cyctup)
        self.b1_pressed_loc = None
        self.existing_dropdown_canvas_id = None
        self.existing_dropdown_window = None
        self.closed_dropdown = None
        self.being_drawn_rect = None
        self.extra_motion_func = None
        self.extra_b1_press_func = None
        self.extra_b1_motion_func = None
        self.extra_b1_release_func = None
        self.extra_double_b1_func = None
        self.ch_extra_begin_drag_drop_func = None
        self.ch_extra_end_drag_drop_func = None
        self.extra_rc_func = None
        self.selection_binding_func = None
        self.shift_selection_binding_func = None
        self.ctrl_selection_binding_func = None
        self.drag_selection_binding_func = None
        self.column_width_resize_func = None
        self.width_resizing_enabled = False
        self.height_resizing_enabled = False
        self.double_click_resizing_enabled = False
        self.col_selection_enabled = False
        self.drag_and_drop_enabled = False
        self.rc_delete_col_enabled = False
        self.rc_insert_col_enabled = False
        self.hide_columns_enabled = False
        self.edit_cell_enabled = False
        self.dragged_col = None
        self.visible_col_dividers = {}
        self.col_height_resize_bbox = tuple()
        self.cell_options = {}
        self.options = {}
        self.rsz_w = None
        self.rsz_h = None
        self.new_col_height = 0
        self.lines_start_at = 0
        self.currently_resizing_width = False
        self.currently_resizing_height = False
        self.ch_rc_popup_menu = None
        
        self.disp_text = defaultdict(set)
        self.disp_high = defaultdict(set)
        self.disp_grid = {}
        self.disp_fill_sels = {}
        self.disp_resize_lines = {}
        self.disp_dropdown = {}
        self.disp_checkbox = {}
        self.hidd_text = defaultdict(set)
        self.hidd_high = defaultdict(set)
        self.hidd_grid = {}
        self.hidd_fill_sels = {}
        self.hidd_resize_lines = {}
        self.hidd_dropdown = {}
        self.hidd_checkbox = {}
        
        self.column_drag_and_drop_perform = kwargs['column_drag_and_drop_perform']
        self.default_header = kwargs['default_header'].lower()
        self.header_bg = kwargs['header_bg']
        self.header_fg = kwargs['header_fg']
        self.header_grid_fg = kwargs['header_grid_fg']
        self.header_border_fg = kwargs['header_border_fg']
        self.header_selected_cells_bg = kwargs['header_selected_cells_bg']
        self.header_selected_cells_fg = kwargs['header_selected_cells_fg']
        self.header_selected_columns_bg = kwargs['header_selected_columns_bg']
        self.header_selected_columns_fg = kwargs['header_selected_columns_fg']
        self.header_hidden_columns_expander_bg = kwargs['header_hidden_columns_expander_bg']
        self.show_default_header_for_empty = kwargs['show_default_header_for_empty']
        self.drag_and_drop_bg = kwargs['drag_and_drop_bg']
        self.resizing_line_fg = kwargs['resizing_line_fg']
        self.align = kwargs['header_align']
        self.basic_bindings()
        
    def basic_bindings(self, enable = True):
        if enable:
            self.bind("<Motion>", self.mouse_motion)
            self.bind("<ButtonPress-1>", self.b1_press)
            self.bind("<B1-Motion>", self.b1_motion)
            self.bind("<ButtonRelease-1>", self.b1_release)
            self.bind("<Double-Button-1>", self.double_b1)
            self.bind(rc_binding, self.rc)
            self.bind("<MouseWheel>", self.mousewheel)
        else:
            self.unbind("<Motion>")
            self.unbind("<ButtonPress-1>")
            self.unbind("<B1-Motion>")
            self.unbind("<ButtonRelease-1>")
            self.unbind("<Double-Button-1>")
            self.unbind(rc_binding)
            self.unbind("<MouseWheel>")
            
    def mousewheel(self, event = None):
        maxlines = 0
        if isinstance(self.MT._headers, int):
            if len(self.MT.data) > self.MT._headers:
                maxlines = max(len(self.MT.get_valid_cell_data_as_str(self.MT._headers, datacn, get_displayed = True).rstrip().split("\n")) for datacn in range(len(self.MT.data[self.MT._headers])))
        elif isinstance(self.MT._headers, (list, tuple)):
            maxlines = max(len(e.rstrip().split("\n")) if isinstance(e, str) else len(f"{e}".rstrip().split("\n")) for e in self.MT._headers)
        if maxlines == 1:
            maxlines = 0
        if self.lines_start_at > maxlines:
            self.lines_start_at = maxlines
        if (event.delta < 0 or event.num == 5) and self.lines_start_at < maxlines:
            self.lines_start_at += 1
        elif (event.delta >= 0 or event.num == 4) and self.lines_start_at > 0:
            self.lines_start_at -= 1
        self.MT.main_table_redraw_grid_and_text(redraw_header = True, redraw_row_index = False, redraw_table = False)

    def set_height(self, new_height, set_TL = False):
        self.current_height = new_height
        try:
            self.config(height = new_height)
        except:
            return
        if set_TL:
            self.TL.set_dimensions(new_h = new_height)

    def enable_bindings(self, binding):
        if binding == "column_width_resize":
            self.width_resizing_enabled = True
        if binding == "column_height_resize":
            self.height_resizing_enabled = True
        if binding == "double_click_column_resize":
            self.double_click_resizing_enabled = True
        if binding == "column_select":
            self.col_selection_enabled = True
        if binding == "drag_and_drop":
            self.drag_and_drop_enabled = True
        if binding == "hide_columns":
            self.hide_columns_enabled = True

    def disable_bindings(self, binding):
        if binding == "column_width_resize":
            self.width_resizing_enabled = False
        if binding == "column_height_resize":
            self.height_resizing_enabled = False
        if binding == "double_click_column_resize":
            self.double_click_resizing_enabled = False
        if binding == "column_select":
            self.col_selection_enabled = False
        if binding == "drag_and_drop":
            self.drag_and_drop_enabled = False
        if binding == "hide_columns":
            self.hide_columns_enabled = False

    def check_mouse_position_width_resizers(self, x, y):
        for c, (x1, y1, x2, y2) in self.visible_col_dividers.items():
            if (x >= x1 and
                y >= y1 and
                x <= x2 and
                y <= y2):
                return c

    def rc(self, event):
        self.mouseclick_outside_editor_or_dropdown_all_canvases()
        self.focus_set()
        popup_menu = None
        if self.MT.identify_col(x = event.x, allow_end = False) is None:
            self.MT.deselect("all")
            if self.MT.rc_popup_menus_enabled:
                popup_menu = self.MT.empty_rc_popup_menu
        elif self.col_selection_enabled and not self.currently_resizing_width and not self.currently_resizing_height:
            c = self.MT.identify_col(x = event.x)
            if c < len(self.MT.col_positions) - 1:
                if self.MT.col_selected(c):
                    if self.MT.rc_popup_menus_enabled:
                        popup_menu = self.ch_rc_popup_menu
                else:
                    if self.MT.single_selection_enabled and self.MT.rc_select_enabled:
                        self.select_col(c, redraw = True)
                    elif self.MT.toggle_selection_enabled and self.MT.rc_select_enabled:
                        self.toggle_select_col(c, redraw = True)
                    if self.MT.rc_popup_menus_enabled:
                        popup_menu = self.ch_rc_popup_menu
        if self.extra_rc_func is not None:
            self.extra_rc_func(event)
        if popup_menu is not None:
            popup_menu.tk_popup(event.x_root, event.y_root)
            
    def ctrl_b1_press(self, event = None):
        self.mouseclick_outside_editor_or_dropdown_all_canvases()
        if (self.drag_and_drop_enabled or self.col_selection_enabled) and self.MT.ctrl_select_enabled and self.rsz_h is None and self.rsz_w is None:
            c = self.MT.identify_col(x = event.x)
            if c < len(self.MT.col_positions) - 1:
                c_selected = self.MT.col_selected(c)
                if not c_selected and self.col_selection_enabled:
                    self.add_selection(c, set_as_current = True)
                    self.MT.main_table_redraw_grid_and_text(redraw_header = True, redraw_row_index = True)
                    if self.ctrl_selection_binding_func is not None:
                        self.ctrl_selection_binding_func(SelectionBoxEvent("ctrl_select_columns", (c, c + 1)))
                elif c_selected:
                    self.dragged_col = DraggedRowColumn(dragged = c, to_move = get_seq_without_gaps_at_index(sorted(self.MT.get_selected_cols()), c))
        elif not self.MT.ctrl_select_enabled:
            self.b1_press(event)
                    
    def ctrl_shift_b1_press(self, event):
        self.mouseclick_outside_editor_or_dropdown_all_canvases()
        x = event.x
        c = self.MT.identify_col(x = x)
        if (self.drag_and_drop_enabled or self.col_selection_enabled) and self.MT.ctrl_select_enabled and self.rsz_h is None and self.rsz_w is None:
            if c < len(self.MT.col_positions) - 1:
                c_selected = self.MT.col_selected(c)
                if not c_selected and self.col_selection_enabled:
                    c = int(c)
                    currently_selected = self.MT.currently_selected()
                    if currently_selected and currently_selected.type_ == "column":
                        min_c = int(currently_selected[1])
                        if c > min_c:
                            self.MT.create_selected(0, min_c, len(self.MT.row_positions) - 1, c + 1, "columns")
                            func_event = tuple(range(min_c, c + 1))
                        elif c < min_c:
                            self.MT.create_selected(0, c, len(self.MT.row_positions) - 1, min_c + 1, "columns")
                            func_event = tuple(range(c, min_c + 1))
                    else:
                        self.add_selection(c, set_as_current = True)
                        func_event = (c, )
                    self.MT.main_table_redraw_grid_and_text(redraw_header = True, redraw_row_index = True)
                    if self.ctrl_selection_binding_func is not None:
                        self.ctrl_selection_binding_func(SelectionBoxEvent("ctrl_select_columns", func_event))
                elif c_selected:
                    self.dragged_col = DraggedRowColumn(dragged = c, to_move = get_seq_without_gaps_at_index(sorted(self.MT.get_selected_cols()), c))
        elif not self.MT.ctrl_select_enabled:
            self.shift_b1_press(event)

    def shift_b1_press(self, event):
        self.mouseclick_outside_editor_or_dropdown_all_canvases()
        x = event.x
        c = self.MT.identify_col(x = x)
        if (self.drag_and_drop_enabled or self.col_selection_enabled) and self.rsz_h is None and self.rsz_w is None:
            if c < len(self.MT.col_positions) - 1:
                c_selected = self.MT.col_selected(c)
                if not c_selected and self.col_selection_enabled:
                    c = int(c)
                    currently_selected = self.MT.currently_selected()
                    if currently_selected and currently_selected.type_ == "column":
                        min_c = int(currently_selected[1])
                        self.MT.delete_selection_rects(delete_current = False)
                        if c > min_c:
                            self.MT.create_selected(0, min_c, len(self.MT.row_positions) - 1, c + 1, "columns")
                            func_event = tuple(range(min_c, c + 1))
                        elif c < min_c:
                            self.MT.create_selected(0, c, len(self.MT.row_positions) - 1, min_c + 1, "columns")
                            func_event = tuple(range(c, min_c + 1))
                    else:
                        self.select_col(c)
                        func_event = (c, )
                    self.MT.main_table_redraw_grid_and_text(redraw_header = True, redraw_row_index = True)
                    if self.shift_selection_binding_func is not None:
                        self.shift_selection_binding_func(SelectionBoxEvent("shift_select_columns", func_event))
                elif c_selected:
                    self.dragged_col = DraggedRowColumn(dragged = c, to_move = get_seq_without_gaps_at_index(sorted(self.MT.get_selected_cols()), c))

    def create_resize_line(self, x1, y1, x2, y2, width, fill, tag):
        if self.hidd_resize_lines:
            t, sh = self.hidd_resize_lines.popitem()
            self.coords(t, x1, y1, x2, y2)
            if sh:
                self.itemconfig(t, width = width, fill = fill, tag = tag)
            else:
                self.itemconfig(t, width = width, fill = fill, tag = tag, state = "normal")
            self.lift(t)
        else:
            t = self.create_line(x1, y1, x2, y2, width = width, fill = fill, tag = tag)
        self.disp_resize_lines[t] = True

    def delete_resize_lines(self):
        self.hidd_resize_lines.update(self.disp_resize_lines)
        self.disp_resize_lines = {}
        for t, sh in self.hidd_resize_lines.items():
            if sh:
                self.itemconfig(t, state = "hidden")
                self.hidd_resize_lines[t] = False

    def mouse_motion(self, event):
        if not self.currently_resizing_height and not self.currently_resizing_width:
            x = self.canvasx(event.x)
            y = self.canvasy(event.y)
            mouse_over_resize = False
            mouse_over_selected = False
            if self.width_resizing_enabled:
                c = self.check_mouse_position_width_resizers(x, y)
                if c is not None:
                    self.rsz_w, mouse_over_resize = c, True
                    self.config(cursor = "sb_h_double_arrow")
                else:
                    self.rsz_w = None
            if self.height_resizing_enabled and not mouse_over_resize:
                try:
                    x1, y1, x2, y2 = self.col_height_resize_bbox[0], self.col_height_resize_bbox[1], self.col_height_resize_bbox[2], self.col_height_resize_bbox[3]
                    if x >= x1 and y >= y1 and x <= x2 and y <= y2:
                        self.config(cursor = "sb_v_double_arrow")
                        self.rsz_h = True
                        mouse_over_resize = True
                    else:
                        self.rsz_h = None
                except:
                    self.rsz_h = None
            if not mouse_over_resize:
                if self.MT.col_selected(self.MT.identify_col(event, allow_end = False)):
                    self.config(cursor = "hand2")
                    mouse_over_selected = True
            if not mouse_over_resize and not mouse_over_selected:
                self.MT.reset_mouse_motion_creations()
        if self.extra_motion_func is not None:
            self.extra_motion_func(event)

    def double_b1(self, event = None):
        self.mouseclick_outside_editor_or_dropdown_all_canvases()
        self.focus_set()
        if self.double_click_resizing_enabled and self.width_resizing_enabled and self.rsz_w is not None and not self.currently_resizing_width:
            col = self.rsz_w - 1
            old_width = self.MT.col_positions[self.rsz_w] - self.MT.col_positions[self.rsz_w - 1]
            new_width = self.set_col_width(col)
            self.MT.main_table_redraw_grid_and_text(redraw_header = True, redraw_row_index = True)
            if self.column_width_resize_func is not None and old_width != new_width:
                self.column_width_resize_func(ResizeEvent("column_width_resize", col, old_width, new_width))
        elif self.col_selection_enabled and self.rsz_h is None and self.rsz_w is None:
            c = self.MT.identify_col(x = event.x)
            if c < len(self.MT.col_positions) - 1:
                if self.MT.single_selection_enabled:
                    self.select_col(c, redraw = True)
                elif self.MT.toggle_selection_enabled:
                    self.toggle_select_col(c, redraw = True)
                datacn = c if self.MT.all_columns_displayed else self.MT.displayed_columns[c]
                if (self.get_cell_kwargs(datacn, key = 'dropdown') or
                    self.get_cell_kwargs(datacn, key = 'checkbox') or
                    self.edit_cell_enabled):
                    self.open_cell(event)
        self.rsz_w = None
        self.mouse_motion(event)
        if self.extra_double_b1_func is not None:
            self.extra_double_b1_func(event)
        
    def b1_press(self, event = None):
        self.MT.unbind("<MouseWheel>")
        self.focus_set()
        self.closed_dropdown = self.mouseclick_outside_editor_or_dropdown_all_canvases()
        x = self.canvasx(event.x)
        y = self.canvasy(event.y)
        c = self.MT.identify_col(x = event.x)
        self.b1_pressed_loc = c
        if self.check_mouse_position_width_resizers(x, y) is None:
            self.rsz_w = None
        if self.width_resizing_enabled and self.rsz_w is not None:
            x1, y1, x2, y2 = self.MT.get_canvas_visible_area()
            self.currently_resizing_width = True
            x = self.MT.col_positions[self.rsz_w]
            line2x = self.MT.col_positions[self.rsz_w - 1]
            self.create_resize_line(x, 0, x, self.current_height, width = 1, fill = self.resizing_line_fg, tag = "rwl")
            self.MT.create_resize_line(x, y1, x, y2, width = 1, fill = self.resizing_line_fg, tag = "rwl")
            self.create_resize_line(line2x, 0, line2x, self.current_height,width = 1, fill = self.resizing_line_fg, tag = "rwl2")
            self.MT.create_resize_line(line2x, y1, line2x, y2, width = 1, fill = self.resizing_line_fg, tag = "rwl2")
        elif self.height_resizing_enabled and self.rsz_w is None and self.rsz_h is not None:
            x1, y1, x2, y2 = self.MT.get_canvas_visible_area()
            self.currently_resizing_height = True
            y = event.y
            if y < self.MT.min_header_height:
                y = int(self.MT.min_header_height)
            self.new_col_height = y
            self.create_resize_line(x1, y, x2, y, width = 1, fill = self.resizing_line_fg, tag = "rhl")
        elif self.MT.identify_col(x = event.x, allow_end = False) is None:
            self.MT.deselect("all")
        elif self.col_selection_enabled and self.rsz_w is None and self.rsz_h is None:
            if c < len(self.MT.col_positions) - 1:
                datacn = c if self.MT.all_columns_displayed else self.MT.displayed_columns[c]
                if self.MT.col_selected(c) and not self.event_over_dropdown(c, datacn, event, x) and not self.event_over_checkbox(c, datacn, event, x):
                    self.dragged_col = DraggedRowColumn(dragged = c, to_move = get_seq_without_gaps_at_index(sorted(self.MT.get_selected_cols()), c))
                else:
                    self.being_drawn_rect = (0, c, len(self.MT.row_positions) - 1, c + 1, "columns")
                    if self.MT.single_selection_enabled:
                        self.select_col(c, redraw = True)
                    elif self.MT.toggle_selection_enabled:
                        self.toggle_select_col(c, redraw = True)
        if self.extra_b1_press_func is not None:
            self.extra_b1_press_func(event)
    
    def b1_motion(self, event):
        x1, y1, x2, y2 = self.MT.get_canvas_visible_area()
        if self.width_resizing_enabled and self.rsz_w is not None and self.currently_resizing_width:
            x = self.canvasx(event.x)
            size = x - self.MT.col_positions[self.rsz_w - 1]
            if size >= self.MT.min_column_width and size < self.MT.max_column_width:
                self.delete_all_resize_and_ctrl_lines(ctrl_lines = False)
                line2x = self.MT.col_positions[self.rsz_w - 1]
                self.create_resize_line(x, 0, x, self.current_height, width = 1, fill = self.resizing_line_fg, tag = "rwl")
                self.MT.create_resize_line(x, y1, x, y2, width = 1, fill = self.resizing_line_fg, tag = "rwl")
                self.create_resize_line(line2x, 0, line2x, self.current_height,width = 1, fill = self.resizing_line_fg, tag = "rwl2")
                self.MT.create_resize_line(line2x, y1, line2x, y2, width = 1, fill = self.resizing_line_fg, tag = "rwl2")
        elif self.height_resizing_enabled and self.rsz_h is not None and self.currently_resizing_height:
            evy = event.y
            self.delete_all_resize_and_ctrl_lines(ctrl_lines = False)
            if evy > self.current_height:
                y = self.MT.canvasy(evy - self.current_height)
                if evy > self.MT.max_header_height:
                    evy = int(self.MT.max_header_height)
                    y = self.MT.canvasy(evy - self.current_height)
                self.new_col_height = evy
                self.MT.create_resize_line(x1, y, x2, y, width = 1, fill = self.resizing_line_fg, tag = "rhl")
            else:
                y = evy
                if y < self.MT.min_header_height:
                    y = int(self.MT.min_header_height)
                self.new_col_height = y
                self.create_resize_line(x1, y, x2, y, width = 1, fill = self.resizing_line_fg, tag = "rhl")
        elif self.drag_and_drop_enabled and self.col_selection_enabled and self.MT.anything_selected(exclude_cells = True, exclude_rows = True) and self.rsz_h is None and self.rsz_w is None and self.dragged_col is not None:
            x = self.canvasx(event.x)
            if x > 0 and x < self.MT.col_positions[-1]:
                self.show_drag_and_drop_indicators(self.drag_and_drop_motion(event), y1, y2, self.dragged_col.to_move[0], self.dragged_col.to_move[-1])
        elif self.MT.drag_selection_enabled and self.col_selection_enabled and self.rsz_h is None and self.rsz_w is None:
            need_redraw = False
            end_col = self.MT.identify_col(x = event.x)
            currently_selected = self.MT.currently_selected()
            if end_col < len(self.MT.col_positions) - 1 and currently_selected:
                if currently_selected.type_ == "column":
                    start_col = currently_selected[1]
                    if end_col >= start_col:
                        rect = (0, start_col, len(self.MT.row_positions) - 1, end_col + 1, "columns")
                        func_event = tuple(range(start_col, end_col + 1))
                    elif end_col < start_col:
                        rect = (0, end_col, len(self.MT.row_positions) - 1, start_col + 1, "columns")
                        func_event = tuple(range(end_col, start_col + 1))
                    if self.being_drawn_rect != rect:
                        need_redraw = True
                        self.MT.delete_selection_rects(delete_current = False)
                        self.MT.create_selected(*rect)
                        self.being_drawn_rect = rect
                        if self.drag_selection_binding_func is not None:
                            self.drag_selection_binding_func(SelectionBoxEvent("drag_select_columns", func_event))
                if self.scroll_if_event_offscreen(event):
                    need_redraw = True
            if need_redraw:
                self.MT.main_table_redraw_grid_and_text(redraw_header = True, redraw_row_index = False)
        if self.extra_b1_motion_func is not None:
            self.extra_b1_motion_func(event)
            
    def ctrl_b1_motion(self, event):
        x1, y1, x2, y2 = self.MT.get_canvas_visible_area()
        if self.drag_and_drop_enabled and self.col_selection_enabled and self.MT.anything_selected(exclude_cells = True, exclude_rows = True) and self.rsz_h is None and self.rsz_w is None and self.dragged_col is not None:
            x = self.canvasx(event.x)
            if x > 0 and x < self.MT.col_positions[-1]:
                self.show_drag_and_drop_indicators(self.drag_and_drop_motion(event), y1, y2, self.dragged_col.to_move[0], self.dragged_col.to_move[-1])
        elif self.MT.ctrl_select_enabled and self.MT.drag_selection_enabled and self.col_selection_enabled and self.rsz_h is None and self.rsz_w is None:
            need_redraw = False
            end_col = self.MT.identify_col(x = event.x)
            currently_selected = self.MT.currently_selected()
            if end_col < len(self.MT.col_positions) - 1 and currently_selected:
                if currently_selected.type_ == "column":
                    start_col = currently_selected[1]
                    if end_col >= start_col:
                        rect = (0, start_col, len(self.MT.row_positions) - 1, end_col + 1, "columns")
                        func_event = tuple(range(start_col, end_col + 1))
                    elif end_col < start_col:
                        rect = (0, end_col, len(self.MT.row_positions) - 1, start_col + 1, "columns")
                        func_event = tuple(range(end_col, start_col + 1))
                    if self.being_drawn_rect != rect:
                        need_redraw = True
                        if self.being_drawn_rect is not None:
                            self.MT.delete_selected(*self.being_drawn_rect)
                        self.MT.create_selected(*rect)
                        self.being_drawn_rect = rect
                        if self.drag_selection_binding_func is not None:
                            self.drag_selection_binding_func(SelectionBoxEvent("drag_select_columns", func_event))
                if self.scroll_if_event_offscreen(event):
                    need_redraw = True
            if need_redraw:
                self.MT.main_table_redraw_grid_and_text(redraw_header = True, redraw_row_index = False)
        elif not self.MT.ctrl_select_enabled:
            self.b1_motion(event)
                
    def drag_and_drop_motion(self, event):
        x = event.x
        wend = self.winfo_width()
        xcheck = self.xview()
        if x >= wend - 0 and len(xcheck) > 1 and xcheck[1] < 1:
            if x >= wend + 15:
                self.MT.xview_scroll(2, "units")
                self.xview_scroll(2, "units")
            else:
                self.MT.xview_scroll(1, "units")
                self.xview_scroll(1, "units")
            self.fix_xview()
            self.MT.main_table_redraw_grid_and_text(redraw_header = True)
        elif x <= 0 and len(xcheck) > 1 and xcheck[0] > 0:
            if x >= -15:
                self.MT.xview_scroll(-1, "units")
                self.xview_scroll(-1, "units")
            else:
                self.MT.xview_scroll(-2, "units")
                self.xview_scroll(-2, "units")
            self.fix_xview()
            self.MT.main_table_redraw_grid_and_text(redraw_header = True)
        col = self.MT.identify_col(x = event.x)
        if col >= self.dragged_col.to_move[0] and col <= self.dragged_col.to_move[-1]:
            xpos = self.MT.col_positions[self.dragged_col.to_move[0]]
        else:
            if col < self.dragged_col.to_move[0]:
                xpos = self.MT.col_positions[col]
            else:
                xpos = self.MT.col_positions[col + 1]
        return xpos

    def show_drag_and_drop_indicators(self, xpos, y1, y2, start_col, end_col):
        self.delete_all_resize_and_ctrl_lines()
        self.create_resize_line(xpos, 0, xpos, self.current_height, width = 3, fill = self.drag_and_drop_bg, tag = "dd")
        self.MT.create_resize_line(xpos, y1, xpos, y2, width = 3, fill = self.drag_and_drop_bg, tag = "dd")
        self.MT.show_ctrl_outline(start_cell = (start_col, 0),
                                  end_cell = (end_col + 1, len(self.MT.row_positions) - 1),
                                  dash = (),
                                  outline = self.drag_and_drop_bg,
                                  delete_on_timer = False)
        
    def delete_all_resize_and_ctrl_lines(self, ctrl_lines = True):
        self.delete_resize_lines()
        self.MT.delete_resize_lines()
        if ctrl_lines:
            self.MT.delete_ctrl_outlines()

    def scroll_if_event_offscreen(self, event):
        xcheck = self.xview()
        need_redraw = False
        if event.x > self.winfo_width() and len(xcheck) > 1 and xcheck[1] < 1:
            try:
                self.MT.xview_scroll(1, "units")
                self.xview_scroll(1, "units")
            except:
                pass
            self.fix_xview()
            need_redraw = True
        elif event.x < 0 and self.canvasx(self.winfo_width()) > 0 and xcheck and xcheck[0] > 0:
            try:
                self.xview_scroll(-1, "units")
                self.MT.xview_scroll(-1, "units")
            except:
                pass
            self.fix_xview()
            need_redraw = True
        return need_redraw

    def fix_xview(self):
        xcheck = self.xview()
        if xcheck and xcheck[0] < 0:
            self.MT.set_xviews("moveto", 0)
        elif len(xcheck) > 1 and xcheck[1] > 1:
            self.MT.set_xviews("moveto", 1)
            
    def event_over_dropdown(self, c, datacn, event, canvasx):
        if (event.y < self.MT.header_txt_h + 5 and
            self.get_cell_kwargs(datacn, key = 'dropdown') and 
            canvasx < self.MT.col_positions[c + 1] and 
            canvasx > self.MT.col_positions[c + 1] - self.MT.header_txt_h - 4):
            return True
        return False
                    
    def event_over_checkbox(self, c, datacn, event, canvasx):
        if (event.y < self.MT.header_txt_h + 5 and
            self.get_cell_kwargs(datacn, key = 'checkbox') and
            canvasx < self.MT.col_positions[c] + self.MT.header_txt_h + 4):
            return True
        return False
            
    def b1_release(self, event = None):
        if self.being_drawn_rect is not None:
            self.MT.delete_selected(*self.being_drawn_rect)
            to_sel = tuple(self.being_drawn_rect)
            self.being_drawn_rect = None
            self.MT.create_selected(*to_sel)
        self.MT.bind("<MouseWheel>", self.MT.mousewheel)
        if self.width_resizing_enabled and self.rsz_w is not None and self.currently_resizing_width:
            self.currently_resizing_width = False
            new_col_pos = int(self.coords("rwl")[0])
            self.delete_all_resize_and_ctrl_lines(ctrl_lines = False)
            old_width = self.MT.col_positions[self.rsz_w] - self.MT.col_positions[self.rsz_w - 1]
            size = new_col_pos - self.MT.col_positions[self.rsz_w - 1]
            if size < self.MT.min_column_width:
                new_col_pos = ceil(self.MT.col_positions[self.rsz_w - 1] + self.MT.min_column_width)
            elif size > self.MT.max_column_width:
                new_col_pos = floor(self.MT.col_positions[self.rsz_w - 1] + self.MT.max_column_width)
            increment = new_col_pos - self.MT.col_positions[self.rsz_w]
            self.MT.col_positions[self.rsz_w + 1:] = [e + increment for e in islice(self.MT.col_positions, self.rsz_w + 1, len(self.MT.col_positions))]
            self.MT.col_positions[self.rsz_w] = new_col_pos
            new_width = self.MT.col_positions[self.rsz_w] - self.MT.col_positions[self.rsz_w - 1]
            self.MT.recreate_all_selection_boxes()
            self.MT.main_table_redraw_grid_and_text(redraw_header = True, redraw_row_index = True)
            if self.column_width_resize_func is not None and old_width != new_width:
                self.column_width_resize_func(ResizeEvent("column_width_resize", self.rsz_w - 1, old_width, new_width))
        elif self.height_resizing_enabled and self.rsz_h is not None and self.currently_resizing_height:
            self.currently_resizing_height = False
            self.delete_all_resize_and_ctrl_lines(ctrl_lines = False)
            self.set_height(self.new_col_height, set_TL = True)
            self.MT.main_table_redraw_grid_and_text(redraw_header = True, redraw_row_index = True)
        elif self.drag_and_drop_enabled and self.col_selection_enabled and self.MT.anything_selected(exclude_cells = True, exclude_rows = True) and self.rsz_h is None and self.rsz_w is None and self.dragged_col is not None:
            self.delete_all_resize_and_ctrl_lines()
            x = event.x
            c = self.MT.identify_col(x = x)
            orig_selected = self.dragged_col.to_move
            if c != self.dragged_col.dragged and c is not None and (c < self.dragged_col.to_move[0] or c > self.dragged_col.to_move[-1]) and len(orig_selected) != len(self.MT.col_positions) - 1:
                rm1start = orig_selected[0]
                totalcols = len(orig_selected)
                extra_func_success = True
                if c >= len(self.MT.col_positions) - 1:
                    c -= 1
                if self.ch_extra_begin_drag_drop_func is not None:
                    try:
                        self.ch_extra_begin_drag_drop_func(BeginDragDropEvent("begin_column_header_drag_drop", tuple(orig_selected), int(c)))
                    except:
                        extra_func_success = False
                if extra_func_success:
                    new_selected, dispset = self.MT.move_columns_adjust_options_dict(c,
                                                                                     rm1start, 
                                                                                     totalcols,
                                                                                     move_data = self.column_drag_and_drop_perform)
                    if self.MT.undo_enabled:
                        self.MT.undo_storage.append(zlib.compress(pickle.dumps(("move_cols",
                                                                                orig_selected,
                                                                                new_selected))))
                    self.MT.main_table_redraw_grid_and_text(redraw_header = True, redraw_row_index = True)
                    if self.ch_extra_end_drag_drop_func is not None:
                        self.ch_extra_end_drag_drop_func(EndDragDropEvent("end_column_header_drag_drop", orig_selected, new_selected, int(c)))
                    self.parentframe.emit_event("<<SheetModified>>")
        elif self.b1_pressed_loc is not None and self.rsz_w is None and self.rsz_h is None:
            c = self.MT.identify_col(x = event.x)
            if c is not None and c < len(self.MT.col_positions) - 1 and c == self.b1_pressed_loc and self.b1_pressed_loc != self.closed_dropdown:
                datacn = c if self.MT.all_columns_displayed else self.MT.displayed_columns[c]
                canvasx = self.canvasx(event.x)
                if self.event_over_dropdown(c, datacn, event, canvasx) or self.event_over_checkbox(c, datacn, event, canvasx):
                    self.open_cell(event)
            else:
                self.mouseclick_outside_editor_or_dropdown_all_canvases()
            self.b1_pressed_loc = None
            self.closed_dropdown = None
        self.dragged_col = None
        self.currently_resizing_width = False
        self.currently_resizing_height = False
        self.rsz_w = None
        self.rsz_h = None
        self.mouse_motion(event)
        if self.extra_b1_release_func is not None:
            self.extra_b1_release_func(event)
            
    def readonly_header(self, columns = [], readonly = True):
        if isinstance(columns, int):
            columns_ = [columns]
        else:
            columns_ = columns
        if not readonly:
            for c in columns_:
                if c in self.cell_options and 'readonly' in self.cell_options[c]:
                    del self.cell_options[c]['readonly']
        else:
            for c in columns_:
                if c not in self.cell_options:
                    self.cell_options[c] = {}
                self.cell_options[c]['readonly'] = True

    def toggle_select_col(self, column, add_selection = True, redraw = True, run_binding_func = True, set_as_current = True):
        if add_selection:
            if self.MT.col_selected(column):
                self.MT.deselect(c = column, redraw = redraw)
            else:
                self.add_selection(c = column, redraw = redraw, run_binding_func = run_binding_func, set_as_current = set_as_current)
        else:
            if self.MT.col_selected(column):
                self.MT.deselect(c = column, redraw = redraw)
            else:
                self.select_col(column, redraw = redraw)
                
    def select_col(self, c, redraw = False):
        self.MT.delete_selection_rects()
        self.MT.create_selected(0, c, len(self.MT.row_positions) - 1, c + 1, "columns")
        self.MT.set_currently_selected(0, c, type_ = "column")
        if redraw:
            self.MT.main_table_redraw_grid_and_text(redraw_header = True, redraw_row_index = True)
        if self.selection_binding_func is not None:
            self.selection_binding_func(SelectColumnEvent("select_column", int(c)))

    def add_selection(self, c, redraw = False, run_binding_func = True, set_as_current = True):
        c = int(c)
        if set_as_current:
            self.MT.set_currently_selected(0, c, type_ = "column")
        self.MT.create_selected(0, c, len(self.MT.row_positions) - 1, c + 1, "columns")
        if redraw:
            self.MT.main_table_redraw_grid_and_text(redraw_header = True, redraw_row_index = True)
        if self.selection_binding_func is not None and run_binding_func:
            self.selection_binding_func(("select_column", int(c)))
            
    def get_cell_dimensions(self, datacn):
        txt = self.get_valid_cell_data_as_str(datacn, fix = False)
        if txt:
            self.MT.txt_measure_canvas.itemconfig(self.MT.txt_measure_canvas_text, text = txt, font = self.MT.header_font)
            b = self.MT.txt_measure_canvas.bbox(self.MT.txt_measure_canvas_text)
            w = b[2] - b[0] + 7
            h = b[3] - b[1] + 5
        else:
            w = self.MT.min_column_width
            h = self.MT.min_header_height
        if datacn in self.cell_options and (self.get_cell_kwargs(datacn, key = 'dropdown') or self.get_cell_kwargs(datacn, key = 'checkbox')):
            return w + self.MT.header_txt_h, h
        return w, h
    
    def set_height_of_header_to_text(self, text = None):
        if (text is None and not self.MT._headers and isinstance(self.MT._headers, list) or 
            isinstance(self.MT._headers, int) and self.MT._headers >= len(self.MT.data)
            ):
            return
        qconf = self.MT.txt_measure_canvas.itemconfig
        qbbox = self.MT.txt_measure_canvas.bbox
        qtxtm = self.MT.txt_measure_canvas_text
        new_height = self.MT.min_header_height
        self.fix_header()
        if text is not None:
            if text:
                qconf(qtxtm, text = text)
                b = qbbox(qtxtm)
                h = b[3] - b[1] + 5
                if h > new_height:
                    new_height = h
        else:
            if self.MT.all_columns_displayed:
                if isinstance(self.MT._headers, list):
                    iterable = range(len(self.MT._headers))
                else:
                    iterable = range(len(self.MT.data[self.MT._headers]))
            else:
                iterable = self.MT.displayed_columns
            if isinstance(self.MT._headers, list):
                for datacn in iterable:
                    w_, h = self.get_cell_dimensions(datacn)
                    if h < self.MT.min_header_height:
                        h = int(self.MT.min_header_height)
                    elif h > self.MT.max_header_height:
                        h = int(self.MT.max_header_height)
                    if h > new_height:
                        new_height = h
            elif isinstance(self.MT._headers, int):
                datarn = self.MT._headers
                for datacn in iterable:
                    txt = self.MT.get_valid_cell_data_as_str(datarn, datacn, get_displayed = True)
                    if txt:
                        qconf(qtxtm, text = txt)
                        b = qbbox(qtxtm)
                        h = b[3] - b[1] + 5
                    else:
                        h = self.MT.default_header_height
                    if h < self.MT.min_header_height:
                        h = int(self.MT.min_header_height)
                    elif h > self.MT.max_header_height:
                        h = int(self.MT.max_header_height)
                    if h > new_height:
                        new_height = h
        space_bot = self.MT.get_space_bot(0)
        if new_height > space_bot:
            new_height = space_bot
        self.set_height(new_height, set_TL = True)
        self.MT.main_table_redraw_grid_and_text(redraw_header = True, redraw_row_index = True)
        return new_height

    def set_col_width(self, col, width = None, only_set_if_too_small = False, displayed_only = False, recreate = True, return_new_width = False):
        if col < 0:
            return
        qconf = self.MT.txt_measure_canvas.itemconfig
        qbbox = self.MT.txt_measure_canvas.bbox
        qtxtm = self.MT.txt_measure_canvas_text
        qtxth = self.MT.txt_h
        qclop = self.MT.cell_options
        qfont = self.MT.table_font
        self.fix_header()
        if width is None:
            w = self.MT.min_column_width
            hw = self.MT.min_column_width
            if self.MT.all_rows_displayed:
                if displayed_only:
                    x1, y1, x2, y2 = self.MT.get_canvas_visible_area()
                    start_row, end_row = self.MT.get_visible_rows(y1, y2)
                else:
                    start_row, end_row = 0, len(self.MT.data)
                iterable = range(start_row, end_row)
            else:
                if displayed_only:
                    x1, y1, x2, y2 = self.MT.get_canvas_visible_area()
                    start_row, end_row = self.MT.get_visible_rows(y1, y2)
                else:
                    start_row, end_row = 0, len(self.MT.displayed_rows)
                iterable = self.MT.displayed_rows[start_row:end_row]
            datacn = col if self.MT.all_columns_displayed else self.MT.displayed_columns[col]
            # header
            hw, hh_ = self.get_cell_dimensions(datacn)
            # table
            if self.MT.data:
                for datarn in iterable:
                    txt = self.MT.get_valid_cell_data_as_str(datarn, datacn, get_displayed = True)
                    if txt:
                        qconf(qtxtm, text = txt, font = qfont)
                        b = qbbox(qtxtm)
                        if self.MT.get_cell_kwargs(datarn, datacn, key = 'dropdown') or self.MT.get_cell_kwargs(datarn, datacn, key = 'checkbox'):
                            tw = b[2] - b[0] + qtxth + 7
                        else:
                            tw = b[2] - b[0] + 7
                        if tw > w:
                            w = tw
            if w > hw:
                new_width = w
            else:
                new_width = hw
        else:
            new_width = int(width)
        if new_width <= self.MT.min_column_width:
            new_width = int(self.MT.min_column_width)
        elif new_width > self.MT.max_column_width:
            new_width = int(self.MT.max_column_width)
        if only_set_if_too_small:
            if new_width <= self.MT.col_positions[col + 1] - self.MT.col_positions[col]:
                return self.MT.col_positions[col + 1] - self.MT.col_positions[col]
        if not return_new_width:
            new_col_pos = self.MT.col_positions[col] + new_width
            increment = new_col_pos - self.MT.col_positions[col + 1]
            self.MT.col_positions[col + 2:] = [e + increment for e in islice(self.MT.col_positions, col + 2, len(self.MT.col_positions))]
            self.MT.col_positions[col + 1] = new_col_pos
            if recreate:
                self.MT.recreate_all_selection_boxes()
        return new_width

    def set_width_of_all_cols(self, width = None, only_set_if_too_small = False, recreate = True):
        if width is None:
            if self.MT.all_columns_displayed:
                iterable = range(self.MT.total_data_cols())
            else:
                iterable = range(len(self.MT.displayed_columns))
            self.MT.col_positions = list(accumulate(chain([0], (self.set_col_width(cn, only_set_if_too_small = only_set_if_too_small, recreate = False, return_new_width = True) for cn in iterable))))
        elif width is not None:
            if self.MT.all_columns_displayed:
                self.MT.col_positions = list(accumulate(chain([0], (width for cn in range(self.MT.total_data_cols())))))
            else:
                self.MT.col_positions = list(accumulate(chain([0], (width for cn in range(len(self.MT.displayed_columns))))))
        if recreate:
            self.MT.recreate_all_selection_boxes()

    def align_cells(self, columns = [], align = "global"):
        if isinstance(columns, int):
            cols = [columns]
        else:
            cols = columns
        if align == "global":
            for c in cols:
                if c in self.cell_options and 'align' in self.cell_options[c]:
                    del self.cell_options[c]['align']
        else:
            for c in cols:
                if c not in self.cell_options:
                    self.cell_options[c] = {}
                self.cell_options[c]['align'] = align

    def redraw_highlight_get_text_fg(self, fc, sc, c, c_2, c_3, selections, datacn):
        redrawn = False
        kwargs = self.get_cell_kwargs(datacn, key = 'highlight')
        if kwargs:
            if kwargs[0] is not None:
                c_1 = kwargs[0] if kwargs[0].startswith("#") else Color_Map_[kwargs[0]]
            if 'columns' in selections and c in selections['columns']:
                tf = self.header_selected_columns_fg if kwargs[1] is None or self.MT.display_selected_fg_over_highlights else kwargs[1]
                if kwargs[0] is not None:
                    fill = f"#{int((int(c_1[1:3], 16) + int(c_3[1:3], 16)) / 2):02X}" + f"{int((int(c_1[3:5], 16) + int(c_3[3:5], 16)) / 2):02X}" + f"{int((int(c_1[5:], 16) + int(c_3[5:], 16)) / 2):02X}"
            elif 'cells' in selections and c in selections['cells']:
                tf = self.header_selected_cells_fg if kwargs[1] is None or self.MT.display_selected_fg_over_highlights else kwargs[1]
                if kwargs[0] is not None:
                    fill = f"#{int((int(c_1[1:3], 16) + int(c_2[1:3], 16)) / 2):02X}" + f"{int((int(c_1[3:5], 16) + int(c_2[3:5], 16)) / 2):02X}" + f"{int((int(c_1[5:], 16) + int(c_2[5:], 16)) / 2):02X}"
            else:
                tf = self.header_fg if kwargs[1] is None else kwargs[1]
                if kwargs[0] is not None:
                    fill = kwargs[0]
            if kwargs[0] is not None:
                redrawn = self.redraw_highlight(fc + 1,
                                                0,
                                                sc,
                                                self.current_height - 1,
                                                fill = fill,
                                                outline = self.header_fg if self.get_cell_kwargs(datacn, key = 'dropdown') and self.MT.show_dropdown_borders else "",
                                                tag = "hi")
        elif not kwargs:
            if 'columns' in selections and c in selections['columns']:
                tf = self.header_selected_columns_fg
            elif 'cells' in selections and c in selections['cells']:
                tf = self.header_selected_cells_fg
            else:
                tf = self.header_fg
        return tf, redrawn
            
    def redraw_highlight(self, x1, y1, x2, y2, fill, outline, tag):
        config = (fill, outline)
        coords = (x1 - 1 if outline else x1,
                  y1 - 1 if outline else y1,
                  x2, 
                  y2)
        k = None
        if config in self.hidd_high:
            k = config
            iid, showing = self.hidd_high[k].pop()
            if all(int(crd1) == int(crd2) for crd1, crd2 in zip(self.coords(iid), coords)):
                option = 0 if showing else 2
            else:
                option = 1 if showing else 3

        elif self.hidd_high:
            k = next(iter(self.hidd_high))
            iid, showing = self.hidd_high[k].pop()
            if all(int(crd1) == int(crd2) for crd1, crd2 in zip(self.coords(iid), coords)):
                option = 2 if showing else 3
            else:
                option = 3
            
        else:
            iid, showing, option = self.create_rectangle(coords, fill = fill, outline = outline, tag = tag), 1, 4

        if option in (1, 3):
            self.coords(iid, coords)
        if option in (2, 3):
            if showing:
                self.itemconfig(iid, fill = fill, outline = outline)
            else:
                self.itemconfig(iid, fill = fill, outline = outline, tag = tag, state = "normal")
        
        if k is not None and not self.hidd_high[k]:
            del self.hidd_high[k]

        self.disp_high[config].add(DrawnItem(iid = iid, showing = 1))
        return True

    def redraw_gridline(self,points, fill, width, tag):
        if self.hidd_grid:
            t, sh = self.hidd_grid.popitem()
            self.coords(t, points)
            if sh:
                self.itemconfig(t, fill = fill, width = width, tag = tag, capstyle = tk.BUTT, joinstyle = tk.ROUND)
            else:
                self.itemconfig(t, fill = fill, width = width, tag = tag, capstyle = tk.BUTT, joinstyle = tk.ROUND, state = "normal")
            self.disp_grid[t] = True
        else:
            self.disp_grid[self.create_line(points, fill = fill, width = width, tag = tag)] = True
            
    def redraw_dropdown(self, x1, y1, x2, y2, fill, outline, tag, draw_outline = True, draw_arrow = True, dd_is_open = False):
        if draw_outline and self.MT.show_dropdown_borders:
            self.redraw_highlight(x1 + 1, y1 + 1, x2, y2, fill = "", outline = self.header_fg, tag = tag)
        if draw_arrow:
            topysub = floor(self.MT.header_half_txt_h / 2)
            mid_y = y1 + floor(self.MT.min_header_height / 2)
            if mid_y + topysub + 1 >= y1 + self.MT.header_txt_h - 1:
                mid_y -= 1
            if mid_y - topysub + 2 <= y1 + 4 + topysub:
                mid_y -= 1
                ty1 = mid_y + topysub + 1 if dd_is_open else mid_y - topysub + 3
                ty2 = mid_y - topysub + 3 if dd_is_open else mid_y + topysub + 1
                ty3 = mid_y + topysub + 1 if dd_is_open else mid_y - topysub + 3
            else:
                ty1 = mid_y + topysub + 1 if dd_is_open else mid_y - topysub + 2
                ty2 = mid_y - topysub + 2 if dd_is_open else mid_y + topysub + 1
                ty3 = mid_y + topysub + 1 if dd_is_open else mid_y - topysub + 2
            tx1 = x2 - self.MT.header_txt_h + 1
            tx2 = x2 - self.MT.header_half_txt_h - 1
            tx3 = x2 - 3
            if tx2 - tx1 > tx3 - tx2:
                tx1 += (tx2 - tx1) - (tx3 - tx2)
            elif tx2 - tx1 < tx3 - tx2:
                tx1 -= (tx3 - tx2) - (tx2 - tx1)
            points = (tx1, ty1, tx2, ty2, tx3, ty3)
            if self.hidd_dropdown:
                t, sh = self.hidd_dropdown.popitem()
                self.coords(t, points)
                if sh:
                    self.itemconfig(t, fill = fill)
                else:
                    self.itemconfig(t, fill = fill, tag = tag, state = "normal")
                self.lift(t)
            else:
                t = self.create_line(points, fill = fill, width = 2, capstyle = tk.ROUND, joinstyle = tk.ROUND, tag = tag)
            self.disp_dropdown[t] = True
            
    def redraw_checkbox(self, x1, y1, x2, y2, fill, outline, tag, draw_check = False):
        points = self.MT.get_checkbox_points(x1, y1, x2, y2)
        if self.hidd_checkbox:
            t, sh = self.hidd_checkbox.popitem()
            self.coords(t, points)
            if sh:
                self.itemconfig(t, fill = outline, outline = fill)
            else:
                self.itemconfig(t, fill = outline, outline = fill, tag = tag, state = "normal")
            self.lift(t)
        else:
            t = self.create_polygon(points, fill = outline, outline = fill, tag = tag, smooth = True)
        self.disp_checkbox[t] = True
        if draw_check:
            # draw filled box
            x1 = x1 + 4
            y1 = y1 + 4
            x2 = x2 - 3
            y2 = y2 - 3
            points = self.MT.get_checkbox_points(x1, y1, x2, y2, radius = 4)
            if self.hidd_checkbox:
                t, sh = self.hidd_checkbox.popitem()
                self.coords(t, points)
                if sh:
                    self.itemconfig(t, fill = fill, outline = outline)
                else:
                    self.itemconfig(t, fill = fill, outline = outline, tag = tag, state = "normal")
                self.lift(t)
            else:
                t = self.create_polygon(points, fill = fill, outline = outline, tag = tag, smooth = True)
            self.disp_checkbox[t] = True

    def redraw_grid_and_text(self, last_col_line_pos, scrollpos_left, x_stop, start_col, end_col, scrollpos_right, col_pos_exists):
        try:
            self.configure(scrollregion = (0,
                                           0,
                                           last_col_line_pos + self.MT.empty_horizontal,
                                           self.current_height))
        except:
            return
        for k, v in self.disp_text.items():
            if k in self.hidd_text:
                self.hidd_text[k] = self.hidd_text[k] | self.disp_text[k]
            else:
                self.hidd_text[k] = v
        self.disp_text = defaultdict(set)
        for k, v in self.disp_high.items():
            if k in self.hidd_high:
                self.hidd_high[k] = self.hidd_high[k] | self.disp_high[k]
            else:
                self.hidd_high[k] = v
        self.disp_high = defaultdict(set)
        self.hidd_grid.update(self.disp_grid)
        self.disp_grid = {}
        self.hidd_dropdown.update(self.disp_dropdown)
        self.disp_dropdown = {}
        self.hidd_checkbox.update(self.disp_checkbox)
        self.disp_checkbox = {}
        self.visible_col_dividers = {}
        self.col_height_resize_bbox = (scrollpos_left, self.current_height - 2, x_stop, self.current_height)
        draw_x = self.MT.col_positions[start_col]
        yend = self.current_height - 5
        if (self.MT.show_vertical_grid or self.width_resizing_enabled) and col_pos_exists:
            self.grid_cyc = cycle(self.grid_cyctup)
            points = [x_stop - 1, self.current_height - 1, 
                      scrollpos_left - 1, self.current_height - 1,
                      scrollpos_left - 1, -1]
            for c in range(start_col + 1, end_col):
                draw_x = self.MT.col_positions[c]
                if self.width_resizing_enabled:
                    self.visible_col_dividers[c] = (draw_x - 2, 1, draw_x + 2, yend)
                st_or_end = next(self.grid_cyc)
                if st_or_end == "st":
                    points.extend([draw_x, -1,
                                   draw_x, self.current_height,
                                   self.MT.col_positions[c + 1] if len(self.MT.col_positions) - 1 > c else draw_x, self.current_height])
                elif st_or_end == "end":
                    points.extend([draw_x, self.current_height,
                                   draw_x, -1,
                                   self.MT.col_positions[c + 1] if len(self.MT.col_positions) - 1 > c else draw_x, -1])
                if points:
                    self.redraw_gridline(points = points, fill = self.header_grid_fg, width = 1, tag = "v")
        top = self.canvasy(0)
        c_2 = self.header_selected_cells_bg if self.header_selected_cells_bg.startswith("#") else Color_Map_[self.header_selected_cells_bg]
        c_3 = self.header_selected_columns_bg if self.header_selected_columns_bg.startswith("#") else Color_Map_[self.header_selected_columns_bg]
        font = self.MT.header_font
        selections = self.get_redraw_selections(start_col, end_col)
        for c in range(start_col, end_col - 1):
            draw_y = self.MT.header_fl_ins
            cleftgridln = self.MT.col_positions[c]
            crightgridln = self.MT.col_positions[c + 1]
            datacn = c if self.MT.all_columns_displayed else self.MT.displayed_columns[c]
            fill, dd_drawn = self.redraw_highlight_get_text_fg(cleftgridln, crightgridln, c, c_2, c_3, selections, datacn)

            if datacn in self.cell_options and 'align' in self.cell_options[datacn]:
                align = self.cell_options[datacn]['align']
            else:
                align = self.align
            
            kwargs = self.get_cell_kwargs(datacn, key = 'dropdown')
            if align == "w":
                draw_x = cleftgridln + 3
                if kwargs:
                    mw = crightgridln - cleftgridln - self.MT.header_txt_h - 2
                    self.redraw_dropdown(cleftgridln, 0, crightgridln, self.current_height - 1, 
                                         fill = fill, outline = fill, tag = "dd", draw_outline = not dd_drawn, draw_arrow = mw >= 5,
                                         dd_is_open = kwargs['window'] != "no dropdown open")
                else:
                    mw = crightgridln - cleftgridln - 1

            elif align == "e":
                if kwargs:
                    mw = crightgridln - cleftgridln - self.MT.header_txt_h - 2
                    draw_x = crightgridln - 5 - self.MT.header_txt_h
                    self.redraw_dropdown(cleftgridln, 0, crightgridln, self.current_height - 1,
                                         fill = fill, outline = fill, tag = "dd", draw_outline = not dd_drawn, draw_arrow = mw >= 5,
                                         dd_is_open = kwargs['window'] != "no dropdown open")
                else:
                    mw = crightgridln - cleftgridln - 1
                    draw_x = crightgridln - 3

            elif align == "center":
                #stop = cleftgridln + 5
                if kwargs:
                    mw = crightgridln - cleftgridln - self.MT.header_txt_h - 2
                    draw_x = cleftgridln + ceil((crightgridln - cleftgridln - self.MT.header_txt_h) / 2)
                    self.redraw_dropdown(cleftgridln, 0, crightgridln, self.current_height - 1, 
                                         fill = fill, outline = fill, tag = "dd", draw_outline = not dd_drawn, draw_arrow = mw >= 5,
                                         dd_is_open = kwargs['window'] != "no dropdown open")
                else:
                    mw = crightgridln - cleftgridln - 1
                    draw_x = cleftgridln + floor((crightgridln - cleftgridln) / 2)
            kwargs = self.get_cell_kwargs(datacn, key = 'checkbox')
            if kwargs:
                if mw > self.MT.header_txt_h + 2:
                    box_w = self.MT.header_txt_h + 1
                    mw -= box_w
                    if align == "w":
                        draw_x += box_w + 1
                    elif align == "center":
                        draw_x += ceil(box_w / 2) + 1
                        mw -= 1
                    else:
                        mw -= 3
                    try:
                        draw_check = self.MT._headers[datacn] if isinstance(self.MT._headers, (list, tuple)) else self.MT.data[self.MT._headers][datacn]
                    except:
                        draw_check = False
                    self.redraw_checkbox(cleftgridln + 2,
                                         2,
                                         cleftgridln + self.MT.header_txt_h + 3,
                                         self.MT.header_txt_h + 3,
                                         fill = fill if kwargs['state'] == "normal" else self.header_grid_fg,
                                         outline = "",
                                         tag = "cb", 
                                         draw_check = draw_check)
            lns = self.get_valid_cell_data_as_str(datacn, fix = False).split("\n")
            if lns == [""]:
                if self.show_default_header_for_empty:
                    lns = (get_n2a(datacn, self.default_header), )
                else:
                    continue
            if mw > self.MT.header_txt_w and not ((align == "w" and (draw_x > x_stop)) or
                                               (align == "e" and (draw_x > x_stop)) or
                                               (align == "center" and (cleftgridln + 5 > x_stop))):
                for txt in islice(lns, self.lines_start_at if self.lines_start_at < len(lns) else len(lns) - 1, None):
                    if draw_y > top:
                        config = TextCfg(txt, fill, font, align)
                        k = None
                        if config in self.hidd_text:
                            k = config
                            iid, showing = self.hidd_text[k].pop()
                            cc1, cc2 = self.coords(iid)
                            if (int(cc1) == int(draw_x) and
                                int(cc2) == int(draw_y)):
                                option = 0 if showing else 2
                            else:
                                option = 1 if showing else 3
                            self.tag_raise(iid)
                        elif self.hidd_text:
                            k = next(iter(self.hidd_text))
                            iid, showing = self.hidd_text[k].pop()
                            cc1, cc2 = self.coords(iid)
                            if (int(cc1) == int(draw_x) and
                                int(cc2) == int(draw_y)):
                                option = 2 if showing else 3
                            else:
                                option = 3
                            self.tag_raise(iid)
                        else:
                            iid, showing, option = self.create_text(draw_x, draw_y, text = txt, fill = fill, font = font, anchor = align, tag = "t"), 1, 4
                        if option in (1, 3):
                            self.coords(iid, draw_x, draw_y)
                        if option in (2, 3):
                            if showing:
                                self.itemconfig(iid, text = txt, fill = fill, font = font, anchor = align)
                            else:
                                self.itemconfig(iid, text = txt, fill = fill, font = font, anchor = align, state = "normal")
                        if k is not None and not self.hidd_text[k]:
                            del self.hidd_text[k]
                        wd = self.bbox(iid)
                        wd = wd[2] - wd[0]
                        if wd > mw:
                            if align == "w":
                                txt = txt[:int(len(txt) * (mw / wd))]
                                self.itemconfig(iid, text = txt)
                                wd = self.bbox(iid)
                                while wd[2] - wd[0] > mw:
                                    txt = txt[:-1]
                                    self.itemconfig(iid, text = txt)
                                    wd = self.bbox(iid)
                            elif align == "e":
                                txt = txt[len(txt) - int(len(txt) * (mw / wd)):]
                                self.itemconfig(iid, text = txt)
                                wd = self.bbox(iid)
                                while wd[2] - wd[0] > mw:
                                    txt = txt[1:]
                                    self.itemconfig(iid, text = txt)
                                    wd = self.bbox(iid)
                            elif align == "center":
                                self.c_align_cyc = cycle(self.centre_alignment_text_mod_indexes)
                                tmod = ceil((len(txt) - int(len(txt) * (mw / wd))) / 2)
                                txt = txt[tmod - 1:-tmod]
                                self.itemconfig(iid, text = txt)
                                wd = self.bbox(iid)
                                while wd[2] - wd[0] > mw:
                                    txt = txt[next(self.c_align_cyc)]
                                    self.itemconfig(iid, text = txt)
                                    wd = self.bbox(iid)
                                self.coords(iid, draw_x, draw_y)
                            self.disp_text[config._replace(txt = txt)].add(DrawnItem(iid = iid, showing = True))
                        else:
                            self.disp_text[config].add(DrawnItem(iid = iid, showing = True))
                    draw_y += self.MT.header_xtra_lines_increment
                    if draw_y - 1 > self.current_height:
                        break
        for cfg, set_ in self.hidd_text.items():
            for namedtup in tuple(set_):
                if namedtup.showing:
                    self.itemconfig(namedtup.iid, state = "hidden")
                    self.hidd_text[cfg].discard(namedtup)
                    self.hidd_text[cfg].add(namedtup._replace(showing = False))
        for cfg, set_ in self.hidd_high.items():
            for namedtup in tuple(set_):
                if namedtup.showing:
                    self.itemconfig(namedtup.iid, state = "hidden")
                    self.hidd_high[cfg].discard(namedtup)
                    self.hidd_high[cfg].add(namedtup._replace(showing = False))
        for t, sh in self.hidd_grid.items():
            if sh:
                self.itemconfig(t, state = "hidden")
                self.hidd_grid[t] = False
        for t, sh in self.hidd_dropdown.items():
            if sh:
                self.itemconfig(t, state = "hidden")
                self.hidd_dropdown[t] = False
        for t, sh in self.hidd_checkbox.items():
            if sh:
                self.itemconfig(t, state = "hidden")
                self.hidd_checkbox[t] = False
                
    def get_redraw_selections(self, startc, endc):
        d = defaultdict(list)
        for item in chain(self.find_withtag("cells"), self.find_withtag("columns")):
            tags = self.gettags(item)
            d[tags[0]].append(tuple(int(e) for e in tags[1].split("_") if e))
        d2 = {}
        if 'cells' in d:
            d2['cells'] = {c for c in range(startc, endc) for r1, c1, r2, c2 in d['cells'] if c1 <= c and c2 > c}
        if 'columns' in d:
            d2['columns'] = {c for c in range(startc, endc) for r1, c1, r2, c2 in d['columns'] if c1 <= c and c2 > c}
        return d2
                
    def open_cell(self, event = None, ignore_existing_editor = False):
        if not self.MT.anything_selected()  or (not ignore_existing_editor and self.text_editor_id is not None):
            return
        currently_selected = self.MT.currently_selected()
        if not currently_selected:
            return
        x1 = int(currently_selected[1])
        datacn = x1 if self.MT.all_columns_displayed else self.MT.displayed_columns[x1]
        if self.get_cell_kwargs(datacn, key = 'readonly'):
            return
        elif self.get_cell_kwargs(datacn, key = 'dropdown') or self.get_cell_kwargs(datacn, key = 'checkbox'):
            if self.MT.event_opens_dropdown_or_checkbox(event):
                if self.get_cell_kwargs(datacn, key = 'dropdown'):
                    self.open_dropdown_window(x1, event = event)
                elif self.get_cell_kwargs(datacn, key = 'checkbox'):
                    self.click_checkbox(x1, datacn)
        elif self.edit_cell_enabled:
            self.open_text_editor(event = event, c = x1, dropdown = False)
    
    # displayed indexes
    def get_cell_align(self, c):
        datacn = c if self.MT.all_columns_displayed else self.MT.displayed_columns[c]
        if datacn in self.cell_options and 'align' in self.cell_options[datacn]:
            align = self.cell_options[datacn]['align']
        else:
            align = self.align
        return align

    # c is displayed col
    def open_text_editor(self,
                         event = None,
                         c = 0,
                         text = None,
                         state = "normal",
                         see = True,
                         set_data_on_close = True,
                         binding = None,
                         dropdown = False):
        text = None
        extra_func_key = "??"
        if event is None or self.MT.event_opens_dropdown_or_checkbox(event):
            if event is not None:
                if hasattr(event, 'keysym') and event.keysym == 'Return':
                    extra_func_key = "Return"
                elif hasattr(event, 'keysym') and event.keysym == 'F2':
                    extra_func_key = "F2"
            datacn = c if self.MT.all_columns_displayed else self.MT.displayed_columns[c]
            text = self.get_cell_data(datacn, none_to_empty_str = True, redirect_int = True)
        elif event is not None and ((hasattr(event, 'keysym') and event.keysym == 'BackSpace') or
                                    event.keycode in (8, 855638143)):
            extra_func_key = "BackSpace"
            text = ""
        elif event is not None and ((hasattr(event, "char") and event.char.isalpha()) or
                                    (hasattr(event, "char") and event.char.isdigit()) or
                                    (hasattr(event, "char") and event.char in symbols_set)):
            extra_func_key = event.char
            text = event.char
        else:
            return False
        self.text_editor_loc = c
        if self.extra_begin_edit_cell_func is not None:
            try:
                text = self.extra_begin_edit_cell_func(EditHeaderEvent(c, extra_func_key, text, "begin_edit_header"))
            except:
                return False
            if text is None:
                return False
            else:
                text = text if isinstance(text, str) else f"{text}"
        text = "" if text is None else text
        if self.MT.cell_auto_resize_enabled:
            if self.height_resizing_enabled:
                self.set_height_of_header_to_text(text)
            self.set_col_width_run_binding(c)
        
        if c == self.text_editor_loc and self.text_editor is not None:
            self.text_editor.set_text(self.text_editor.get() + "" if not isinstance(text, str) else text)
            return
        if self.text_editor is not None:
            self.destroy_text_editor()
        if see:
            has_redrawn = self.MT.see(r = 0, c = c, keep_yscroll = True, check_cell_visibility = True)
            if not has_redrawn:
                self.MT.refresh()
        self.text_editor_loc = c
        x = self.MT.col_positions[c] + 1
        y = 0
        w = self.MT.col_positions[c + 1] - x
        h = self.current_height + 1
        datacn = c if self.MT.all_columns_displayed else self.MT.displayed_columns[c]
        if text is None:
            text = self.get_cell_data(datacn, none_to_empty_str = True, redirect_int = True)
        bg, fg = self.header_bg, self.header_fg
        self.text_editor = TextEditor(self,
                                      text = text,
                                      font = self.MT.header_font,
                                      state = state,
                                      width = w,
                                      height = h,
                                      border_color = self.MT.table_selected_cells_border_fg,
                                      show_border = False,
                                      bg = bg,
                                      fg = fg,
                                      popup_menu_font = self.MT.popup_menu_font,
                                      popup_menu_fg = self.MT.popup_menu_fg,
                                      popup_menu_bg = self.MT.popup_menu_bg,
                                      popup_menu_highlight_bg = self.MT.popup_menu_highlight_bg,
                                      popup_menu_highlight_fg = self.MT.popup_menu_highlight_fg,
                                      binding = binding,
                                      align = self.get_cell_align(c),
                                      c = c,
                                      newline_binding = self.text_editor_has_wrapped)
        self.text_editor.update_idletasks()
        self.text_editor_id = self.create_window((x, y), window = self.text_editor, anchor = "nw")
        if not dropdown:
            self.text_editor.textedit.focus_set()
            self.text_editor.scroll_to_bottom()
        self.text_editor.textedit.bind("<Alt-Return>", lambda x: self.text_editor_newline_binding(c = c))
        if USER_OS == 'darwin':
            self.text_editor.textedit.bind("<Option-Return>", lambda x: self.text_editor_newline_binding(c = c))
        for key, func in self.MT.text_editor_user_bound_keys.items():
            self.text_editor.textedit.bind(key, func)
        if binding is not None:
            self.text_editor.textedit.bind("<Tab>", lambda x: binding((c, "Tab")))
            self.text_editor.textedit.bind("<Return>", lambda x: binding((c, "Return")))
            self.text_editor.textedit.bind("<FocusOut>", lambda x: binding((c, "FocusOut")))
            self.text_editor.textedit.bind("<Escape>", lambda x: binding((c, "Escape")))
        elif binding is None and set_data_on_close:
            self.text_editor.textedit.bind("<Tab>", lambda x: self.close_text_editor((c, "Tab")))
            self.text_editor.textedit.bind("<Return>", lambda x: self.close_text_editor((c, "Return")))
            if not dropdown:
                self.text_editor.textedit.bind("<FocusOut>", lambda x: self.close_text_editor((c, "FocusOut")))
            self.text_editor.textedit.bind("<Escape>", lambda x: self.close_text_editor((c, "Escape")))
        else:
            self.text_editor.textedit.bind("<Escape>", lambda x: self.destroy_text_editor("Escape"))
        return True
    
    # displayed indexes                             #just here to receive text editor arg
    def text_editor_has_wrapped(self, r = 0, c = 0, check_lines = None):
        if self.width_resizing_enabled:
            datacn = c if self.MT.all_columns_displayed else self.MT.displayed_columns[c]
            curr_width = self.text_editor.winfo_width()
            new_width = curr_width + (self.MT.header_txt_h * 2)
            if new_width != curr_width:
                self.text_editor.config(width = new_width)
                self.set_col_width_run_binding(c, width = new_width, only_set_if_too_small = False)
                kwargs = self.get_cell_kwargs(datacn, key = 'dropdown')
                if kwargs:
                    self.itemconfig(kwargs['canvas_id'],
                                    width = new_width)
                    kwargs['window'].update_idletasks()
                    kwargs['window']._reselect()
                self.MT.main_table_redraw_grid_and_text(redraw_header = True, redraw_row_index = False, redraw_table = True)
    
    # displayed indexes
    def text_editor_newline_binding(self, r = 0, c = 0, event = None, check_lines = True):
        if self.height_resizing_enabled:
            datacn = c if self.MT.all_columns_displayed else self.MT.displayed_columns[c]
            curr_height = self.text_editor.winfo_height()
            if not check_lines or self.MT.get_lines_cell_height(self.text_editor.get_num_lines() + 1, font = self.MT.header_font) > curr_height:
                new_height = curr_height + self.MT.header_xtra_lines_increment
                space_bot = self.MT.get_space_bot(0)
                if new_height > space_bot:
                    new_height = space_bot
                if new_height != curr_height:
                    self.text_editor.config(height = new_height)
                    self.set_height(new_height, set_TL = True)
                    kwargs = self.get_cell_kwargs(datacn, key = 'dropdown')
                    if kwargs:
                        win_h, anchor = self.get_dropdown_height_anchor(datacn, new_height)
                        self.coords(kwargs['canvas_id'],
                                    self.MT.col_positions[c], new_height - 1)
                        self.itemconfig(kwargs['canvas_id'],
                                        anchor = anchor, height = win_h)
            
    def bind_cell_edit(self, enable = True):
        if enable:
            self.edit_cell_enabled = True
        else:
            self.edit_cell_enabled = False

    def bind_text_editor_destroy(self, binding, c):
        self.text_editor.textedit.bind("<Return>", lambda x: binding((c, "Return")))
        self.text_editor.textedit.bind("<FocusOut>", lambda x: binding((c, "FocusOut")))
        self.text_editor.textedit.bind("<Escape>", lambda x: binding((c, "Escape")))
        self.text_editor.textedit.focus_set()

    def destroy_text_editor(self, event = None):
        if event is not None and self.extra_end_edit_cell_func is not None and self.text_editor_loc is not None:
            self.extra_end_edit_cell_func(EditHeaderEvent(int(self.text_editor_loc), "Escape", None, "escape_edit_header"))
        self.text_editor_loc = None
        try:
            self.delete(self.text_editor_id)
        except:
            pass
        try:
            self.text_editor.destroy()
        except:
            pass
        try:
            self.text_editor = None
        except:
            pass
        try:
            self.text_editor_id = None
        except:
            pass
        if event is not None and len(event) >= 3 and "Escape" in event:
            self.focus_set()

    # c is displayed col
    def close_text_editor(self, editor_info = None, c = None, set_data_on_close = True, event = None, destroy = True, move_down = True, redraw = True, recreate = True):
        if self.focus_get() is None and editor_info:
            return
        if editor_info is not None and len(editor_info) >= 2 and editor_info[1] == "Escape":
            self.destroy_text_editor("Escape")
            self.close_dropdown_window(c)
            return
        if self.text_editor is not None:
            self.text_editor_value = self.text_editor.get()
        if destroy:
            self.destroy_text_editor()
        if set_data_on_close:
            if c is None and editor_info is not None and len(editor_info) >= 2:
                c = editor_info[0]
            datacn = c if self.MT.all_columns_displayed else self.MT.displayed_columns[c]
            if self.extra_end_edit_cell_func is None and self.input_valid_for_cell(datacn, self.text_editor_value):
                self.set_cell_data_undo(c, datacn = datacn, value = self.text_editor_value, check_input_valid = False)
            elif self.extra_end_edit_cell_func is not None and not self.MT.edit_cell_validation and self.input_valid_for_cell(datacn, self.text_editor_value):
                self.set_cell_data_undo(c, datacn = datacn, value = self.text_editor_value, check_input_valid = False)
                self.extra_end_edit_cell_func(EditHeaderEvent(c, editor_info[1] if len(editor_info) >= 2 else "FocusOut", f"{self.text_editor_value}", "end_edit_header"))
            elif self.extra_end_edit_cell_func is not None and self.MT.edit_cell_validation:
                validation = self.extra_end_edit_cell_func(EditHeaderEvent(c, editor_info[1] if len(editor_info) >= 2 else "FocusOut", f"{self.text_editor_value}", "end_edit_header"))
                if validation is not None:
                    self.text_editor_value = validation
                    if self.input_valid_for_cell(datacn, self.text_editor_value):
                        self.set_cell_data_undo(c, datacn = datacn, value = self.text_editor_value, check_input_valid = False)
        if move_down:
            pass
        self.close_dropdown_window(c)
        if recreate:
            self.MT.recreate_all_selection_boxes()
        if redraw:
            self.MT.refresh()
        if editor_info is not None and len(editor_info) >= 2 and editor_info[1] != "FocusOut":
            self.focus_set()
        return "break"
    
    #internal event use
    def set_cell_data_undo(self, c = 0, datacn = None, value = "", cell_resize = True, undo = True, redraw = True, check_input_valid = True):
        if datacn is None:
            datacn = c if self.MT.all_columns_displayed else self.MT.displayed_columns[c]
        if isinstance(self.MT._headers, int):
            self.MT.set_cell_data_undo(r = self.MT._headers, c = c, datacn = datacn, value = value, undo = True)
        else:
            self.fix_header(datacn)
            if not check_input_valid or self.input_valid_for_cell(datacn, value):
                if self.MT.undo_enabled and undo:
                    self.MT.undo_storage.append(zlib.compress(pickle.dumps(("edit_header",
                                                                           {datacn: self.MT._headers[datacn]},
                                                                           self.MT.get_boxes(include_current = False),
                                                                           self.MT.currently_selected()))))
                self.set_cell_data(datacn = datacn, value = value)
        if cell_resize and self.MT.cell_auto_resize_enabled:
            if self.height_resizing_enabled:
                self.set_height_of_header_to_text(self.get_valid_cell_data_as_str(datacn, fix = False))
            self.set_col_width_run_binding(c)
        if redraw:
            self.MT.refresh()
        self.parentframe.emit_event("<<SheetModified>>")
    
    def set_cell_data(self, datacn = None, value = ""):
        if isinstance(self.MT._headers, int):
            self.MT.set_cell_data(datarn = self.MT._headers, datacn = datacn, value = value)
        else:
            self.fix_header(datacn)
            if self.get_cell_kwargs(datacn, key = 'checkbox'):
                self.MT._headers[datacn] = try_to_bool(value)
            else:
                self.MT._headers[datacn] = value
    
    def input_valid_for_cell(self, datacn, value):
        if self.get_cell_kwargs(datacn, key = 'readonly'):
            return False
        if self.get_cell_kwargs(datacn, key = 'checkbox'):
            return is_bool_like(value)
        if self.cell_equal_to(datacn, value):
            return False
        kwargs = self.get_cell_kwargs(datacn, key = 'dropdown')
        if (kwargs and kwargs['validate_input'] and 
            value not in kwargs['values']):
            return False
        return True
    
    def cell_equal_to(self, datacn, value):
        self.fix_header(datacn)
        if isinstance(self.MT._headers, list):
            return self.MT._headers[datacn] == value
        elif isinstance(self.MT._headers, int):
            return self.MT.cell_equal_to(self.MT._headers, datacn, value)
            
    def get_cell_data(self, datacn, get_displayed = False, none_to_empty_str = False, redirect_int = False):
        if get_displayed:
            return self.get_valid_cell_data_as_str(datacn, fix = False)
        if redirect_int and isinstance(self.MT._headers, int): # internal use
            return self.MT.get_cell_data(self.MT._headers, datacn, none_to_empty_str = True)
        if (isinstance(self.MT._headers, int) or
            not self.MT._headers or 
            datacn >= len(self.MT._headers) or 
            (self.MT._headers[datacn] is None and none_to_empty_str)):
            return ""
        return self.MT._headers[datacn]
            
    def get_valid_cell_data_as_str(self, datacn, fix = True) -> str:
        kwargs = self.get_cell_kwargs(datacn, key = 'dropdown')
        if kwargs and kwargs['text'] is not None:
            return f"{kwargs['text']}"
        kwargs = self.get_cell_kwargs(datacn, key = 'checkbox')
        if kwargs:
            return f"{kwargs['text']}"
        if isinstance(self.MT._headers, int):
            return self.MT.get_valid_cell_data_as_str(self.MT._headers, datacn, get_displayed = True)
        if fix:
            self.fix_header(datacn)
        try:
            return "" if self.MT._headers[datacn] is None else f"{self.MT._headers[datacn]}"
        except:
            return ""
        
    def get_value_for_empty_cell(self, datacn, c_ops = True):
        if self.get_cell_kwargs(datacn, key = 'checkbox', cell = c_ops):
            return False
        kwargs = self.get_cell_kwargs(datacn, key = 'dropdown', cell = c_ops)
        if kwargs and kwargs['validate_input'] and kwargs['values']:
            return kwargs['values'][0]
        return ""
    
    def get_empty_header_seq(self, end, start = 0, c_ops = True):
        return [self.get_value_for_empty_cell(datacn, c_ops = c_ops) for datacn in range(start, end)]

    def fix_header(self, datacn = None, fix_values = tuple()):
        if isinstance(self.MT._headers, int):
            return
        if isinstance(self.MT._headers, float):
            self.MT._headers = int(self.MT._headers)
            return
        if not isinstance(self.MT._headers, list):
            try:
                self.MT._headers = list(self.MT._headers)
            except:
                self.MT._headers = []
        if isinstance(datacn, int) and datacn >= len(self.MT._headers):
            self.MT._headers.extend(self.get_empty_header_seq(end = datacn + 1, start = len(self.MT._headers)))
        if fix_values:
            for cn, v in enumerate(islice(self.MT._headers, fix_values[0], fix_values[1])):
                if not self.input_valid_for_cell(cn, v):
                    self.MT._headers[cn] = self.get_value_for_empty_cell(cn)
    
    # displayed indexes
    def set_col_width_run_binding(self, c, width = None, only_set_if_too_small = True):
        old_width = self.MT.col_positions[c + 1] - self.MT.col_positions[c]
        new_width = self.set_col_width(c, width = width, only_set_if_too_small = only_set_if_too_small)
        if self.column_width_resize_func is not None and old_width != new_width:
            self.column_width_resize_func(ResizeEvent("column_width_resize", c, old_width, new_width))

    #internal event use
    def click_checkbox(self, c, datacn = None, undo = True, redraw = True):
        if datacn is None:
            datacn = c if self.MT.all_columns_displayed else self.MT.displayed_columns[c]
        kwargs = self.get_cell_kwargs(datacn, key = 'checkbox')
        if kwargs['state'] == "normal":
            if isinstance(self.MT._headers, list):
                value = not self.MT._headers[datacn] if type(self.MT._headers[datacn]) == bool else False
            elif isinstance(self.MT._headers, int):
                value = not self.MT.data[self.MT._headers][datacn] if type(self.MT.data[self.MT._headers][datacn]) == bool else False
            else:
                value = False
            self.set_cell_data_undo(c,
                                    datacn = datacn, 
                                    value = value, 
                                    cell_resize = False)
            if kwargs['check_function'] is not None:
                kwargs['check_function']((0,
                                          c, 
                                          "HeaderCheckboxClicked", 
                                          self.MT._headers[datacn] if isinstance(self.MT._headers, list) else self.MT.get_cell_data(self.MT._headers, datacn)))
            if self.extra_end_edit_cell_func is not None:
                self.extra_end_edit_cell_func(EditHeaderEvent(c, 
                                                              "Return",
                                                              self.MT._headers[datacn] if isinstance(self.MT._headers, list) else self.MT.get_cell_data(self.MT._headers, datacn), 
                                                              "end_edit_header"))
        if redraw:
            self.MT.refresh()
            
    def checkbox_header(self, **kwargs):
        self.destroy_opened_dropdown_window()
        if 'dropdown' in self.options or 'checkbox' in self.options:
            self.delete_options_dropdown_and_checkbox()
        if 'checkbox' not in self.options:
            self.options['checkbox'] = {}
        self.options['checkbox'] = get_checkbox_dict(**kwargs)
        total_cols = self.MT.total_data_cols()
        if isinstance(self.MT._headers, int):
            for datacn in total_cols:
                self.MT.set_cell_data(datarn = self.MT._headers, datacn = datacn, value = kwargs['checked'])
        else:
            for datacn in total_cols:
                self.set_cell_data(datacn = datacn, value = kwargs['checked'])
                
    def dropdown_header(self, **kwargs):
        self.destroy_opened_dropdown_window()
        if 'dropdown' in self.options or 'checkbox' in self.options:
            self.delete_options_dropdown_and_checkbox()
        if 'dropdown' not in self.options:
            self.options['dropdown'] = {}
        self.options['dropdown'] = get_dropdown_dict(**kwargs)
        total_cols = self.MT.total_data_cols()
        value = kwargs['set_value'] if kwargs['set_value'] is not None else kwargs['values'][0] if kwargs['values'] else ""
        if isinstance(self.MT._headers, int):
            for datacn in total_cols:
                self.MT.set_cell_data(datarn = self.MT._headers, datacn = datacn, value = value)
        else:
            for datacn in total_cols:
                self.set_cell_data(datacn = datacn, value = value)
            
    def create_checkbox(self, datacn = 0, **kwargs):
        if datacn in self.cell_options and ('dropdown' in self.cell_options[datacn] or 
                                            'checkbox' in self.cell_options[datacn]):
            self.delete_cell_options_dropdown_and_checkbox(datacn)
        if datacn not in self.cell_options:
            self.cell_options[datacn] = {}
        self.cell_options[datacn]['checkbox'] = get_checkbox_dict(**kwargs)
        self.set_cell_data(datacn = datacn, value = kwargs['checked'])

    def create_dropdown(self, datacn = 0, **kwargs):
        if datacn in self.cell_options and ('dropdown' in self.cell_options[datacn] or 
                                            'checkbox' in self.cell_options[datacn]):
            self.delete_cell_options_dropdown_and_checkbox(datacn)
        if datacn not in self.cell_options:
            self.cell_options[datacn] = {}
        self.cell_options[datacn]['dropdown'] = get_dropdown_dict(**kwargs)
        self.set_cell_data(datacn = datacn, 
                           value = kwargs['set_value'] if kwargs['set_value'] is not None else kwargs['values'][0] if kwargs['values'] else "")

    def get_dropdown_height_anchor(self, datacn, text_editor_h = None):
        win_h = 5
        for i, v in enumerate(self.get_cell_kwargs(datacn, key = 'dropdown')['values']):
            v_numlines = len(v.split("\n") if isinstance(v, str) else f"{v}".split("\n"))
            if v_numlines > 1:
                win_h += self.MT.header_fl_ins + (v_numlines * self.MT.header_xtra_lines_increment) + 5 # end of cell
            else:
                win_h += self.MT.min_header_height
            if i == 5:
                break
        if win_h > 500:
            win_h = 500
        space_bot = self.MT.get_space_bot(0, text_editor_h)
        win_h2 = int(win_h)
        if win_h > space_bot:
            win_h = space_bot - 1
        if win_h < self.MT.header_txt_h + 5:
            win_h = self.MT.header_txt_h + 5
        elif win_h > win_h2:
            win_h = win_h2
        return win_h, "nw"

    def open_dropdown_window(self, c, datacn = None, event = None):
        self.destroy_text_editor("Escape")
        self.destroy_opened_dropdown_window()
        if datacn is None:
            datacn = c if self.MT.all_columns_displayed else self.MT.displayed_columns[c]
        kwargs = self.get_cell_kwargs(datacn, key = 'dropdown')
        if kwargs['state'] == "normal":
            if not self.open_text_editor(event = event, c = c, dropdown = True):
                return
        win_h, anchor = self.get_dropdown_height_anchor(datacn)
        window = self.MT.parentframe.dropdown_class(self.MT.winfo_toplevel(),
                                                    0,
                                                    c,
                                                    width = self.MT.col_positions[c + 1] - self.MT.col_positions[c] + 1,
                                                    height = win_h,
                                                    font = self.MT.header_font,
                                                    colors = {'bg': self.MT.popup_menu_bg, 
                                                              'fg': self.MT.popup_menu_fg, 
                                                              'highlight_bg': self.MT.popup_menu_highlight_bg,
                                                              'highlight_fg': self.MT.popup_menu_highlight_fg},
                                                    outline_color = self.MT.popup_menu_fg,
                                                    values = kwargs['values'],
                                                    close_dropdown_window = self.close_dropdown_window,
                                                    search_function = kwargs['search_function'],
                                                    arrowkey_RIGHT = self.MT.arrowkey_RIGHT,
                                                    arrowkey_LEFT = self.MT.arrowkey_LEFT,
                                                    align = "w",
                                                    single_index = "c")
        ypos = self.current_height - 1
        kwargs['canvas_id'] = self.create_window((self.MT.col_positions[c], ypos),
                                                 window = window,
                                                 anchor = anchor)
        if kwargs['state'] == "normal":
            self.text_editor.textedit.bind("<<TextModified>>", 
                                           lambda x: window.search_and_see(DropDownModifiedEvent("HeaderComboboxModified", 0, c, self.text_editor.get())))
            if kwargs['modified_function'] is not None:
                window.modified_function = kwargs['modified_function']
            self.update_idletasks()
            try:
                self.after(1, lambda: self.text_editor.textedit.focus())
                self.after(2, self.text_editor.scroll_to_bottom())
            except:
                return
            redraw = False
        else:
            window.bind("<FocusOut>", lambda x: self.close_dropdown_window(c))
            self.update_idletasks()
            window.focus_set()
            redraw = True
        self.existing_dropdown_window = window
        kwargs['window'] = window
        self.existing_dropdown_canvas_id = kwargs['canvas_id']
        if redraw:
            self.MT.main_table_redraw_grid_and_text(redraw_header = True, redraw_row_index = False, redraw_table = False)

    def close_dropdown_window(self, c = None, selection = None, redraw = True):
        if c is not None and selection is not None:
            datacn = c if self.MT.all_columns_displayed else self.MT.displayed_columns[c]
            kwargs = self.get_cell_kwargs(datacn, key = 'dropdown')
            if kwargs['select_function'] is not None: # user has specified a selection function
                kwargs['select_function'](EditHeaderEvent(c, "HeaderComboboxSelected", f"{selection}", "end_edit_header"))
            if self.extra_end_edit_cell_func is None:
                self.set_cell_data_undo(c, datacn = datacn, value = selection, redraw = not redraw)
            elif self.extra_end_edit_cell_func is not None and self.MT.edit_cell_validation:
                validation = self.extra_end_edit_cell_func(EditHeaderEvent(c, "HeaderComboboxSelected", f"{selection}", "end_edit_header"))
                if validation is not None:
                    selection = validation
                self.set_cell_data_undo(c, datacn = datacn, value = selection, redraw = not redraw)
            elif self.extra_end_edit_cell_func is not None and not self.MT.edit_cell_validation:
                self.set_cell_data_undo(c, datacn = datacn, value = selection, redraw = not redraw)
                self.extra_end_edit_cell_func(EditHeaderEvent(c, "HeaderComboboxSelected", f"{selection}", "end_edit_header"))
            self.focus_set()
            self.MT.recreate_all_selection_boxes()
        self.destroy_text_editor("Escape")
        self.destroy_opened_dropdown_window(c)
        if redraw:
            self.MT.refresh()
            
    def get_existing_dropdown_coords(self):
        if self.existing_dropdown_window is not None:
            return int(self.existing_dropdown_window.c)
        return None
        
    def mouseclick_outside_editor_or_dropdown(self):
        closed_dd_coords = self.get_existing_dropdown_coords()
        if self.text_editor_loc is not None and self.text_editor is not None:
            self.close_text_editor(editor_info = (self.text_editor_loc, "ButtonPress-1"))
        else:
            self.destroy_text_editor("Escape")
        if closed_dd_coords is not None:
            self.destroy_opened_dropdown_window(closed_dd_coords) #displayed coords not data, necessary for b1 function
        return closed_dd_coords
    
    def mouseclick_outside_editor_or_dropdown_all_canvases(self):
        self.RI.mouseclick_outside_editor_or_dropdown()
        self.MT.mouseclick_outside_editor_or_dropdown()
        return self.mouseclick_outside_editor_or_dropdown()
            
    # function can receive two None args
    def destroy_opened_dropdown_window(self, c = None, datacn = None):
        if c is None and datacn is None and self.existing_dropdown_window is not None:
            c = self.get_existing_dropdown_coords()
        if c is not None or datacn is not None:
            if datacn is None:
                datacn_ = c if self.MT.all_columns_displayed else self.MT.displayed_columns[c]
            else:
                datacn_ = datacn
        else:
            datacn_ = None
        try:
            self.delete(self.existing_dropdown_canvas_id)
        except:
            pass
        self.existing_dropdown_canvas_id = None
        try:
            self.existing_dropdown_window.destroy()
        except:
            pass
        kwargs = self.get_cell_kwargs(datacn_, key = 'dropdown')
        if kwargs:
            kwargs['canvas_id'] = "no dropdown open"
            kwargs['window'] = "no dropdown open"
            try:
                self.delete(kwargs['canvas_id'])
            except:
                pass
        self.existing_dropdown_window = None
        
    def get_cell_kwargs(self, datacn, key = 'dropdown', cell = True, entire = True):
        if cell and datacn in self.cell_options and key in self.cell_options[datacn]:
            return self.cell_options[datacn][key]
        if entire and key in self.options:
            return self.options[key]
        return {}
        
    def delete_options_dropdown(self):
        self.destroy_opened_dropdown_window()
        if 'dropdown' in self.options:
            del self.options['dropdown']
        
    def delete_options_checkbox(self):
        if 'checkbox' in self.options:
            del self.options['checkbox']
            
    def delete_options_dropdown_and_checkbox(self):
        self.delete_options_dropdown()
        self.delete_options_checkbox()

    def delete_cell_options_dropdown(self, datacn):
        self.destroy_opened_dropdown_window(datacn = datacn)
        if datacn in self.cell_options and 'dropdown' in self.cell_options[datacn]:
            del self.cell_options[datacn]['dropdown']

    def delete_cell_options_checkbox(self, datacn):
        if datacn in self.cell_options and 'checkbox' in self.cell_options[datacn]:
            del self.cell_options[datacn]['checkbox']

    def delete_cell_options_dropdown_and_checkbox(self, datacn):
        self.delete_cell_options_dropdown(datacn)
        self.delete_cell_options_checkbox(datacn)