show tooltip function

pyproject.toml

@@ -104,9 +104,3 @@ filterwarnings = [
     "ignore:path is deprecated:DeprecationWarning",
     "ignore:Jupyter is migrating its paths to use standard platformdirs:DeprecationWarning",
 ]
-
-[tool.pyright.defineConstant]
-PYQT5 = true
-PYSIDE2 = false
-PYQT6 = false
-PYSIDE6 = false

tabulous/_qt/_table/_base/_enhanced_table.py

@@ -4,7 +4,7 @@
 import logging
 from typing import TYPE_CHECKING, Iterable, Iterator, cast, Literal
 from qtpy import QtWidgets as QtW, QtGui, QtCore
-from qtpy.QtCore import Qt
+from qtpy.QtCore import Qt, Signal, Property
 
 from ._item_model import AbstractDataFrameModel
 from ._header_view import QHorizontalHeaderView, QVerticalHeaderView
@@ -19,9 +19,6 @@
     from tabulous._qt._mainwindow import _QtMainWidgetBase
     from tabulous._map_model import SlotRefMapping
     from tabulous._utils import TabulousConfig
-    from qtpy.QtCore import pyqtSignal as Signal, pyqtProperty as Property
-else:
-    from qtpy.QtCore import Signal, Property
 
 # Flags
 _SCROLL_PER_PIXEL = QtW.QAbstractItemView.ScrollMode.ScrollPerPixel

tabulous/_qt/_table/_base/_table_base.py

@@ -156,6 +156,34 @@ def createHandle(self) -> QTableHandle:
         """Create custom handle."""
         return QTableHandle(Qt.Orientation.Horizontal, self)
 
+    def showToolTip(self, row: int, col: int) -> None:
+        """Show tooltip at the given position."""
+        if row >= 0 and col >= 0:
+            index = self.model().index(row, col)
+            qtable_view = self._qtable_view
+            pos = qtable_view.mapToGlobal(qtable_view.visualRect(index).center())
+            tooltip = self.model().data(index, Qt.ItemDataRole.ToolTipRole)
+            if isinstance(tooltip, str):
+                QtW.QToolTip.showText(pos, tooltip, qtable_view)
+        elif row < 0:
+            header = self._qtable_view.horizontalHeader()
+            pos = header.mapToGlobal(header.visualRectAtIndex(col).center())
+            tooltip = self.model().headerData(
+                col, Qt.Orientation.Horizontal, Qt.ItemDataRole.ToolTipRole
+            )
+            if isinstance(tooltip, str):
+                QtW.QToolTip.showText(pos, tooltip, header)
+        elif col < 0:
+            header = self._qtable_view.verticalHeader()
+            pos = header.mapToGlobal(header.visualRectAtIndex(row).center())
+            tooltip = self.model().headerData(
+                row, Qt.Orientation.Vertical, Qt.ItemDataRole.ToolTipRole
+            )
+            if isinstance(tooltip, str):
+                QtW.QToolTip.showText(pos, tooltip, header)
+        else:
+            return None
+
     def showContextMenu(self, pos: QtCore.QPoint) -> None:
         """Show contextmenu at the given position."""
         index = self._qtable_view.indexAt(pos)

tabulous/commands/__init__.py

@@ -104,6 +104,7 @@ def wrapper(f):
     (table.zoom_in, "Ctrl+Shift+>"),
     (table.zoom_out, "Ctrl+Shift+<"),
     (table.jump_to_cell, "Ctrl+G"),
+    (table.show_tooltip, "Ctrl+K, Ctrl+I"),
     (file.open_table, "Ctrl+O"),
     (file.open_spreadsheet, "Ctrl+K, Ctrl+O"),
     (file.save_table, "Ctrl+S"),

tabulous/commands/table.py

@@ -340,3 +340,10 @@ def jump_to_cell(viewer: TableViewerBase):
         return
     jw = QJumpWidget(viewer.native)
     jw.show()
+
+
+def show_tooltip(viewer: TableViewerBase):
+    """Show tooltip"""
+    table = _utils.get_table(viewer)
+    r, c = table.current_index
+    table._qwidget.showToolTip(r, c)

tabulous/widgets/_table.py

@@ -5,7 +5,7 @@
 import ast
 from enum import Enum
 from pathlib import Path
-from typing import Any, Callable, Hashable, TYPE_CHECKING, Mapping, overload
+from typing import Any, Callable, Hashable, TYPE_CHECKING, Mapping, NamedTuple, overload
 import weakref
 from psygnal import SignalGroup, Signal
 
@@ -59,6 +59,13 @@ def __repr__(self) -> str:
         return f"<{type(self).__name__}.{self.name}>"
 
 
+class TableIndex(NamedTuple):
+    """Tuple of row and column indices."""
+
+    row: int
+    col: int
+
+
 # #####################################################################
 #   Property-like
 # #####################################################################
@@ -185,9 +192,9 @@ def source(self) -> Source:
         return self._source
 
     @property
-    def current_index(self) -> tuple[int, int]:
-        """The current index of the table."""
-        return self._qwidget._qtable_view._selection_model.current_index
+    def current_index(self) -> TableIndex:
+        """The current index (row, col) of the table."""
+        return TableIndex(*self._qwidget._qtable_view._selection_model.current_index)
 
     @current_index.setter
     def current_index(self, index: tuple[int, int]) -> None: