Sep 12, 2023
diff --git a/lib/matplotlib/backends/_backend_tk.py b/lib/matplotlib/backends/_backend_tk.py


 _log = logging.getLogger(__name__)
 cursord = {
 _CURSOR_DICT = {
    cursors.MOVE: "fleur",
    cursors.HAND: "hand2",
    cursors.POINTER: "arrow",
 # Initialize to a non-empty string that is not a Tcl command
 _blit_tcl_name = "mpl_blit_" + uuid.uuid4().hex

 TK_PHOTO_COMPOSITE_OVERLAY = 0  # apply transparency rules pixel-wise
 TK_PHOTO_COMPOSITE_SET = 1  # set image buffer directly
 _TK_PHOTO_COMPOSITE_OVERLAY = 0  # apply transparency rules pixel-wise
 _TK_PHOTO_COMPOSITE_SET = 1  # set image buffer directly


 def _blit(argsid):
        if (x1 > x2) or (y1 > y2):
            return
        bboxptr = (x1, x2, y1, y2)
        comp_rule =TK_PHOTO_COMPOSITE_OVERLAY
        comp_rule =_TK_PHOTO_COMPOSITE_OVERLAY
    else:
        bboxptr = (0, width, 0, height)
        comp_rule =TK_PHOTO_COMPOSITE_SET
        comp_rule =_TK_PHOTO_COMPOSITE_SET

    # NOTE: _tkagg.blit is thread unsafe and will crash the process if called
    # from a thread (GH#13293). Instead of blanking and blitting here,

    def set_cursor(self, cursor):
        try:
            self._tkcanvas.configure(cursor=cursord[cursor])
            self._tkcanvas.configure(cursor=_CURSOR_DICT[cursor])
        except tkinter.TclError:
            pass
Original file line number	Diff line number	Diff line change
Expand Up		@@ -26,7 +26,7 @@


		_log = logging.getLogger(__name__)
		cursord = {
		_CURSOR_DICT = {
		cursors.MOVE: "fleur",
		cursors.HAND: "hand2",
		cursors.POINTER: "arrow",
Expand All		@@ -51,8 +51,8 @@ def _restore_foreground_window_at_end():
		# Initialize to a non-empty string that is not a Tcl command
		_blit_tcl_name = "mpl_blit_" + uuid.uuid4().hex

		TK_PHOTO_COMPOSITE_OVERLAY = 0 # apply transparency rules pixel-wise
		TK_PHOTO_COMPOSITE_SET = 1 # set image buffer directly
		_TK_PHOTO_COMPOSITE_OVERLAY = 0 # apply transparency rules pixel-wise
		_TK_PHOTO_COMPOSITE_SET = 1 # set image buffer directly


		def _blit(argsid):
Expand DownExpand Up		@@ -97,10 +97,10 @@ def blit(photoimage, aggimage, offsets, bbox=None):
		if (x1 > x2) or (y1 > y2):
		return
		bboxptr = (x1, x2, y1, y2)
		comp_rule =TK_PHOTO_COMPOSITE_OVERLAY
		comp_rule =_TK_PHOTO_COMPOSITE_OVERLAY
		else:
		bboxptr = (0, width, 0, height)
		comp_rule =TK_PHOTO_COMPOSITE_SET
		comp_rule =_TK_PHOTO_COMPOSITE_SET

		# NOTE: _tkagg.blit is thread unsafe and will crash the process if called
		# from a thread (GH#13293). Instead of blanking and blitting here,
Expand DownExpand Up		@@ -434,7 +434,7 @@ def stop_event_loop(self):

		def set_cursor(self, cursor):
		try:
		self._tkcanvas.configure(cursor=cursord[cursor])
		self._tkcanvas.configure(cursor=_CURSOR_DICT[cursor])
		except tkinter.TclError:
		pass

Expand Down