Add info label to TileMap editor

editor/plugins/tiles/tile_map_editor.cpp

@@ -937,6 +937,20 @@ void TileMapEditorTilesPlugin::forward_canvas_draw_over_viewport(Control *p_over
 				}
 			}
 		}
+
+		Ref<Font> font = p_overlay->get_theme_font(SNAME("font"), SNAME("Label"));
+		int font_size = p_overlay->get_theme_font_size(SNAME("font_size"), SNAME("Label"));
+		Point2 msgpos = Point2(20 * EDSCALE, p_overlay->get_size().y - 20 * EDSCALE);
+
+		String text = tile_map->local_to_map(tile_map->get_local_mouse_position());
+		if (drag_type == DRAG_TYPE_RECT) {
+			Vector2i size = tile_map->local_to_map(tile_map->get_local_mouse_position()) - tile_map->local_to_map(drag_start_mouse_pos);
+			text += vformat(" %s (%dx%d)", TTR("Drawing Rect:"), ABS(size.x) + 1, ABS(size.y) + 1);
+		}
+
+		p_overlay->draw_string(font, msgpos + Point2(1, 1), text, HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, Color(0, 0, 0, 0.8));
+		p_overlay->draw_string(font, msgpos + Point2(-1, -1), text, HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, Color(0, 0, 0, 0.8));
+		p_overlay->draw_string(font, msgpos, text, HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, Color(1, 1, 1, 1));
 	}
 }