# -*- coding: utf-8 -*- # Copyright: Ankitects Pty Ltd and contributors # License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html from __future__ import annotations from typing import Any, Callable, List, Optional, Sequence, Tuple, cast import aqt import aqt.forms from anki.cards import Card, CardId from anki.collection import Collection, Config, OpChanges from anki.consts import * from anki.notes import Note, NoteId from anki.utils import isWin from aqt import colors, gui_hooks from aqt.browser.table import Columns, ItemId, SearchContext from aqt.browser.table.model import DataModel from aqt.browser.table.state import CardState, ItemState, NoteState from aqt.qt import * from aqt.theme import theme_manager from aqt.utils import ( KeyboardModifiersPressed, qtMenuShortcutWorkaround, restoreHeader, saveHeader, showInfo, tr, ) class Table: SELECTION_LIMIT: int = 500 def __init__(self, browser: aqt.browser.Browser) -> None: self.browser = browser self.col: Collection = browser.col self._state: ItemState = ( NoteState(self.col) if self.col.get_config_bool(Config.Bool.BROWSER_TABLE_SHOW_NOTES_MODE) else CardState(self.col) ) self._model = DataModel(self.col, self._state) self._view: Optional[QTableView] = None self._current_item: Optional[ItemId] = None self._selected_items: Sequence[ItemId] = [] def set_view(self, view: QTableView) -> None: self._view = view self._setup_view() self._setup_headers() def cleanup(self) -> None: self._save_header() # Public Methods ###################################################################### # Get metadata def len(self) -> int: return self._model.len_rows() def len_selection(self) -> int: return len(self._view.selectionModel().selectedRows()) def has_current(self) -> bool: return self._view.selectionModel().currentIndex().isValid() def has_previous(self) -> bool: return self.has_current() and self._current().row() > 0 def has_next(self) -> bool: return self.has_current() and self._current().row() < self.len() - 1 def is_notes_mode(self) -> bool: return self._state.is_notes_mode() # Get objects def get_current_card(self) -> Optional[Card]: if not self.has_current(): return None return self._model.get_card(self._current()) def get_current_note(self) -> Optional[Note]: if not self.has_current(): return None return self._model.get_note(self._current()) def get_single_selected_card(self) -> Optional[Card]: """If there is only one row selected return its card, else None. This may be a different one than the current card.""" if self.len_selection() != 1: return None return self._model.get_card(self._selected()[0]) # Get ids def get_selected_card_ids(self) -> Sequence[CardId]: return self._model.get_card_ids(self._selected()) def get_selected_note_ids(self) -> Sequence[NoteId]: return self._model.get_note_ids(self._selected()) def get_card_ids_from_selected_note_ids(self) -> Sequence[CardId]: return self._state.card_ids_from_note_ids(self.get_selected_note_ids()) # Selecting def select_all(self) -> None: self._view.selectAll() def clear_selection(self) -> None: self._view.selectionModel().clear() def invert_selection(self) -> None: selection = self._view.selectionModel().selection() self.select_all() self._view.selectionModel().select( selection, cast( QItemSelectionModel.SelectionFlags, QItemSelectionModel.Deselect | QItemSelectionModel.Rows, ), ) def select_single_card(self, card_id: CardId) -> None: """Try to set the selection to the item corresponding to the given card.""" self.clear_selection() if (row := self._model.get_card_row(card_id)) is not None: self._view.selectRow(row) # Reset def reset(self) -> None: """Reload table data from collection and redraw.""" self.begin_reset() self.end_reset() def begin_reset(self) -> None: self._save_selection() self._model.begin_reset() def end_reset(self) -> None: self._model.end_reset() self._restore_selection(self._intersected_selection) def on_backend_will_block(self) -> None: # make sure the card list doesn't try to refresh itself during the operation, # as that will block the UI self._model.begin_blocking() def on_backend_did_block(self) -> None: self._model.end_blocking() def redraw_cells(self) -> None: self._model.redraw_cells() def op_executed( self, changes: OpChanges, handler: Optional[object], focused: bool ) -> None: if changes.browser_table: self._model.mark_cache_stale() if focused: self.redraw_cells() # Modify table def search(self, txt: str) -> None: self._save_selection() self._model.search(SearchContext(search=txt, browser=self.browser)) self._restore_selection(self._intersected_selection) def toggle_state(self, is_notes_mode: bool, last_search: str) -> None: if is_notes_mode == self.is_notes_mode(): return self._save_header() self._save_selection() self._state = self._model.toggle_state( SearchContext(search=last_search, browser=self.browser) ) self.col.set_config_bool( Config.Bool.BROWSER_TABLE_SHOW_NOTES_MODE, self.is_notes_mode() ) self._restore_header() self._restore_selection(self._toggled_selection) # Move cursor def to_previous_row(self) -> None: self._move_current(QAbstractItemView.MoveUp) def to_next_row(self) -> None: self._move_current(QAbstractItemView.MoveDown) def to_first_row(self) -> None: self._move_current_to_row(0) def to_last_row(self) -> None: self._move_current_to_row(self._model.len_rows() - 1) # Private methods ###################################################################### # Helpers def _current(self) -> QModelIndex: return self._view.selectionModel().currentIndex() def _selected(self) -> List[QModelIndex]: return self._view.selectionModel().selectedRows() def _set_current(self, row: int, column: int = 0) -> None: index = self._model.index( row, self._view.horizontalHeader().logicalIndex(column) ) self._view.selectionModel().setCurrentIndex(index, QItemSelectionModel.NoUpdate) def _select_rows(self, rows: List[int]) -> None: selection = QItemSelection() for row in rows: selection.select( self._model.index(row, 0), self._model.index(row, self._model.len_columns() - 1), ) self._view.selectionModel().select(selection, QItemSelectionModel.SelectCurrent) def _set_sort_indicator(self) -> None: hh = self._view.horizontalHeader() index = self._model.active_column_index(self._state.sort_column) if index is None: hh.setSortIndicatorShown(False) return if self._state.sort_backwards: order = Qt.DescendingOrder else: order = Qt.AscendingOrder hh.blockSignals(True) hh.setSortIndicator(index, order) hh.blockSignals(False) hh.setSortIndicatorShown(True) def _set_column_sizes(self) -> None: hh = self._view.horizontalHeader() hh.setSectionResizeMode(QHeaderView.Interactive) hh.setSectionResizeMode( hh.logicalIndex(self._model.len_columns() - 1), QHeaderView.Stretch ) # this must be set post-resize or it doesn't work hh.setCascadingSectionResizes(False) def _save_header(self) -> None: saveHeader(self._view.horizontalHeader(), self._state.config_key_prefix) def _restore_header(self) -> None: self._view.horizontalHeader().blockSignals(True) restoreHeader(self._view.horizontalHeader(), self._state.config_key_prefix) self._set_column_sizes() self._set_sort_indicator() self._view.horizontalHeader().blockSignals(False) # Setup def _setup_view(self) -> None: self._view.setSortingEnabled(True) self._view.setModel(self._model) self._view.selectionModel() self._view.setItemDelegate(StatusDelegate(self.browser, self._model)) qconnect( self._view.selectionModel().selectionChanged, self.browser.onRowChanged ) self._view.setWordWrap(False) self._view.setHorizontalScrollMode(QAbstractItemView.ScrollPerPixel) self._view.horizontalScrollBar().setSingleStep(10) self._update_font() if not theme_manager.night_mode: self._view.setStyleSheet( "QTableView{ selection-background-color: rgba(150, 150, 150, 50); " "selection-color: black; }" ) elif theme_manager.macos_dark_mode(): self._view.setStyleSheet( f"QTableView {{ gridline-color: {colors.FRAME_BG} }}" ) self._view.setContextMenuPolicy(Qt.CustomContextMenu) qconnect(self._view.customContextMenuRequested, self._on_context_menu) def _update_font(self) -> None: # we can't choose different line heights efficiently, so we need # to pick a line height big enough for any card template curmax = 16 for m in self.col.models.all(): for t in m["tmpls"]: bsize = t.get("bsize", 0) if bsize > curmax: curmax = bsize self._view.verticalHeader().setDefaultSectionSize(curmax + 6) def _setup_headers(self) -> None: vh = self._view.verticalHeader() hh = self._view.horizontalHeader() if not isWin: vh.hide() hh.show() hh.setHighlightSections(False) hh.setMinimumSectionSize(50) hh.setSectionsMovable(True) hh.setContextMenuPolicy(Qt.CustomContextMenu) self._restore_header() qconnect(hh.customContextMenuRequested, self._on_header_context) qconnect(hh.sortIndicatorChanged, self._on_sort_column_changed) qconnect(hh.sectionMoved, self._on_column_moved) # Slots def _on_context_menu(self, _point: QPoint) -> None: menu = QMenu() if self.is_notes_mode(): main = self.browser.form.menu_Notes other = self.browser.form.menu_Cards other_name = tr.qt_accel_cards() else: main = self.browser.form.menu_Cards other = self.browser.form.menu_Notes other_name = tr.qt_accel_notes() for action in main.actions(): menu.addAction(action) menu.addSeparator() sub_menu = menu.addMenu(other_name) for action in other.actions(): sub_menu.addAction(action) gui_hooks.browser_will_show_context_menu(self.browser, menu) qtMenuShortcutWorkaround(menu) menu.exec_(QCursor.pos()) def _on_header_context(self, pos: QPoint) -> None: gpos = self._view.mapToGlobal(pos) m = QMenu() for key, column in self._model.columns.items(): a = m.addAction(self._state.column_label(column)) a.setCheckable(True) a.setChecked(self._model.active_column_index(key) is not None) qconnect( a.toggled, lambda checked, key=key: self._on_column_toggled(checked, key), ) gui_hooks.browser_header_will_show_context_menu(self.browser, m) m.exec_(gpos) def _on_column_moved(self, *_args: Any) -> None: self._set_column_sizes() def _on_column_toggled(self, checked: bool, column: str) -> None: if not checked and self._model.len_columns() < 2: showInfo(tr.browsing_you_must_have_at_least_one()) return self._model.toggle_column(column) self._set_column_sizes() # sorted field may have been hidden or revealed self._set_sort_indicator() if checked: self._scroll_to_column(self._model.len_columns() - 1) def _on_sort_column_changed(self, section: int, order: int) -> None: column = self._model.column_at_section(section) if column.sorting == Columns.SORTING_NONE: showInfo(tr.browsing_sorting_on_this_column_is_not()) self._set_sort_indicator() return order = bool(order) if self._state.sort_column != column.key: self._state.sort_column = column.key # default to descending for non-text fields if column.sorting == Columns.SORTING_REVERSED: order = not order self._state.sort_backwards = order self.browser.search() else: if self._state.sort_backwards != order: self._state.sort_backwards = order self._reverse() self._set_sort_indicator() def _reverse(self) -> None: self._save_selection() self._model.reverse() self._restore_selection(self._intersected_selection) # Restore selection def _save_selection(self) -> None: """Save the current item and selected items.""" if self.has_current(): self._current_item = self._model.get_item(self._current()) self._selected_items = self._model.get_items(self._selected()) def _restore_selection(self, new_selected_and_current: Callable) -> None: """Restore the saved selection and current element as far as possible and scroll to the new current element. Clear the saved selection. """ self.clear_selection() if not self._model.is_empty(): rows, current = new_selected_and_current() rows = self._qualify_selected_rows(rows, current) current = current or rows[0] self._select_rows(rows) self._set_current(current) # editor may pop up and hide the row later on QTimer.singleShot(100, lambda: self._scroll_to_row(current)) if self.len_selection() == 0: # no row change will fire self.browser.onRowChanged(QItemSelection(), QItemSelection()) self._selected_items = [] self._current_item = None def _qualify_selected_rows( self, rows: List[int], current: Optional[int] ) -> List[int]: """Return between 1 and SELECTION_LIMIT rows, as far as possible from rows or current.""" if rows: if len(rows) < self.SELECTION_LIMIT: return rows if current and current in rows: return [current] return rows[0:1] return [current if current else 0] def _intersected_selection(self) -> Tuple[List[int], Optional[int]]: """Return all rows of items that were in the saved selection and the row of the saved current element if present. """ selected_rows = self._model.get_item_rows(self._selected_items) current_row = self._current_item and self._model.get_item_row( self._current_item ) return selected_rows, current_row def _toggled_selection(self) -> Tuple[List[int], Optional[int]]: """Convert the items of the saved selection and current element to the new state and return their rows. """ selected_rows = self._model.get_item_rows( self._state.get_new_items(self._selected_items) ) current_row = None if self._current_item: if new_current := self._state.get_new_items([self._current_item]): current_row = self._model.get_item_row(new_current[0]) return selected_rows, current_row # Move def _scroll_to_row(self, row: int) -> None: """Scroll vertically to row.""" top_border = self._view.rowViewportPosition(row) bottom_border = top_border + self._view.rowHeight(0) visible = top_border >= 0 and bottom_border < self._view.viewport().height() if not visible: horizontal = self._view.horizontalScrollBar().value() self._view.scrollTo(self._model.index(row, 0), self._view.PositionAtCenter) self._view.horizontalScrollBar().setValue(horizontal) def _scroll_to_column(self, column: int) -> None: """Scroll horizontally to column.""" position = self._view.columnViewportPosition(column) visible = 0 <= position < self._view.viewport().width() if not visible: vertical = self._view.verticalScrollBar().value() self._view.scrollTo( self._model.index(0, column), self._view.PositionAtCenter ) self._view.verticalScrollBar().setValue(vertical) def _move_current(self, direction: int, index: QModelIndex = None) -> None: if not self.has_current(): return if index is None: index = self._view.moveCursor( cast(QAbstractItemView.CursorAction, direction), self.browser.mw.app.keyboardModifiers(), ) self._view.selectionModel().setCurrentIndex( index, cast( QItemSelectionModel.SelectionFlag, QItemSelectionModel.Clear | QItemSelectionModel.Select | QItemSelectionModel.Rows, ), ) def _move_current_to_row(self, row: int) -> None: old = self._view.selectionModel().currentIndex() self._move_current(None, self._model.index(row, 0)) if not KeyboardModifiersPressed().shift: return new = self._view.selectionModel().currentIndex() selection = QItemSelection(new, old) self._view.selectionModel().select( selection, cast( QItemSelectionModel.SelectionFlag, QItemSelectionModel.SelectCurrent | QItemSelectionModel.Rows, ), ) class StatusDelegate(QItemDelegate): def __init__(self, browser: aqt.browser.Browser, model: DataModel) -> None: QItemDelegate.__init__(self, browser) self._model = model def paint( self, painter: QPainter, option: QStyleOptionViewItem, index: QModelIndex ) -> None: if self._model.get_cell(index).is_rtl: option.direction = Qt.RightToLeft if row_color := self._model.get_row(index).color: brush = QBrush(theme_manager.qcolor(row_color)) painter.save() painter.fillRect(option.rect, brush) painter.restore() return QItemDelegate.paint(self, painter, option, index)