730 lines
23 KiB
Python
730 lines
23 KiB
Python
from pprint import pprint
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from typing import Callable, cast, List, Optional, overload, TYPE_CHECKING
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from PyQt6.QtCore import (
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QEvent,
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QModelIndex,
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QObject,
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QItemSelection,
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Qt,
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)
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from PyQt6.QtGui import QAction, QKeyEvent
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from PyQt6.QtWidgets import (
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QAbstractItemDelegate,
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QAbstractItemView,
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QApplication,
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QHeaderView,
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QMenu,
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QMessageBox,
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QPlainTextEdit,
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QStyledItemDelegate,
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QStyleOptionViewItem,
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QTableView,
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QTableWidgetItem,
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QWidget,
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QProxyStyle,
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QStyle,
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QStyleOption,
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)
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from dbconfig import Session
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from dialogs import TrackSelectDialog
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from classes import MusicMusterSignals, track_sequence
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from config import Config
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from helpers import (
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ask_yes_no,
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ms_to_mmss,
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show_OK,
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show_warning,
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)
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from models import Settings
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if TYPE_CHECKING:
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from musicmuster import Window
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from playlistmodel import PlaylistModel, PlaylistProxyModel
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class EscapeDelegate(QStyledItemDelegate):
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"""
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- increases the height of a row when editing to make editing easier
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- closes the edit on control-return
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- checks with user before abandoning edit on Escape
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"""
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def __init__(self, parent, data_model: PlaylistModel) -> None:
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super().__init__(parent)
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self.data_model = data_model
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self.signals = MusicMusterSignals()
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def createEditor(
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self,
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parent: Optional[QWidget],
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option: QStyleOptionViewItem,
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index: QModelIndex,
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):
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"""
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Intercept createEditor call and make row just a little bit taller
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"""
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self.signals = MusicMusterSignals()
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self.signals.enable_escape_signal.emit(False)
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if isinstance(self.parent(), PlaylistTab):
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p = cast(PlaylistTab, self.parent())
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if isinstance(index.data(), str):
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row = index.row()
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row_height = p.rowHeight(row)
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p.setRowHeight(row, row_height + Config.MINIMUM_ROW_HEIGHT)
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return QPlainTextEdit(parent)
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return super().createEditor(parent, option, index)
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def destroyEditor(self, editor: Optional[QWidget], index: QModelIndex) -> None:
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"""
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Intercept editor destroyment
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"""
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self.signals.enable_escape_signal.emit(True)
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return super().destroyEditor(editor, index)
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def eventFilter(self, editor: Optional[QObject], event: Optional[QEvent]) -> bool:
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"""By default, QPlainTextEdit doesn't handle enter or return"""
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if editor is None or event is None:
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return False
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if event.type() == QEvent.Type.KeyPress:
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key_event = cast(QKeyEvent, event)
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if key_event.key() == Qt.Key.Key_Return:
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if key_event.modifiers() == (Qt.KeyboardModifier.ControlModifier):
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self.commitData.emit(editor)
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self.closeEditor.emit(editor)
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return True
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elif key_event.key() == Qt.Key.Key_Escape:
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discard_edits = QMessageBox.question(
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cast(QWidget, self.parent()), "Abandon edit", "Discard changes?"
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)
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if discard_edits == QMessageBox.StandardButton.Yes:
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self.closeEditor.emit(editor)
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return True
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return False
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def setEditorData(self, editor, index):
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model = index.model()
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if hasattr(model, "mapToSource"):
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edit_index = model.mapToSource(index)
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else:
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edit_index = index
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value = self.data_model.data(edit_index, Qt.ItemDataRole.EditRole)
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editor.setPlainText(value.value())
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def setModelData(self, editor, model, index):
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model = index.model()
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if hasattr(model, "mapToSource"):
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edit_index = model.mapToSource(index)
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else:
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edit_index = index
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value = editor.toPlainText().strip()
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self.data_model.setData(edit_index, value, Qt.ItemDataRole.EditRole)
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def updateEditorGeometry(self, editor, option, index):
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editor.setGeometry(option.rect)
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class PlaylistStyle(QProxyStyle):
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def drawPrimitive(self, element, option, painter, widget=None):
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"""
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Draw a line across the entire row rather than just the column
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we're hovering over.
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"""
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if (
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element == QStyle.PrimitiveElement.PE_IndicatorItemViewItemDrop
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and not option.rect.isNull()
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):
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option_new = QStyleOption(option)
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option_new.rect.setLeft(0)
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if widget:
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option_new.rect.setRight(widget.width())
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option = option_new
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super().drawPrimitive(element, option, painter, widget)
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class PlaylistTab(QTableView):
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"""
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The playlist view
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"""
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def __init__(
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self,
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musicmuster: "Window",
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playlist_id: int,
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) -> None:
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super().__init__()
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# Save passed settings
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self.musicmuster = musicmuster
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self.playlist_id = playlist_id
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# Set up widget
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self.data_model = PlaylistModel(playlist_id)
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self.proxy_model = PlaylistProxyModel(self.data_model)
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self.setItemDelegate(EscapeDelegate(self, self.data_model))
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self.setAlternatingRowColors(True)
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self.setVerticalScrollMode(QAbstractItemView.ScrollMode.ScrollPerPixel)
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self.setDragDropMode(QAbstractItemView.DragDropMode.InternalMove)
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self.setDragDropOverwriteMode(False)
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self.setAcceptDrops(True)
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# Set our custom style - this draws the drop indicator across the whole row
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self.setStyle(PlaylistStyle())
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# We will enable dragging when rows are selected. Disabling it
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# here means we can click and drag to select rows.
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self.setDragEnabled(False)
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# Prepare for context menu
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self.menu = QMenu()
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self.setContextMenuPolicy(Qt.ContextMenuPolicy.CustomContextMenu)
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self.customContextMenuRequested.connect(self._context_menu)
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# Connect signals
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# This dancing is to satisfy mypy
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h_header = self.horizontalHeader()
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if isinstance(h_header, QHeaderView):
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h_header.sectionResized.connect(self._column_resize)
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h_header.setStretchLastSection(True)
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# self.signals.set_next_track_signal.connect(self._reset_next)
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self.signals = MusicMusterSignals()
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self.signals.resize_rows_signal.connect(self.resizeRowsToContents)
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self.signals.span_cells_signal.connect(self._span_cells)
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# Selection model
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self.setSelectionMode(QAbstractItemView.SelectionMode.ExtendedSelection)
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self.setSelectionBehavior(QAbstractItemView.SelectionBehavior.SelectRows)
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# Load playlist rows
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self.setModel(self.proxy_model)
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self._set_column_widths()
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# ########## Overrident class functions ##########
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def closeEditor(
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self, editor: QWidget | None, hint: QAbstractItemDelegate.EndEditHint
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) -> None:
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"""
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Override closeEditor to enable play controls and update display.
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"""
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self.musicmuster.enable_play_next_controls()
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self.musicmuster.actionSetNext.setEnabled(True)
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self.musicmuster.action_Clear_selection.setEnabled(True)
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super(PlaylistTab, self).closeEditor(editor, hint)
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# Optimise row heights after increasing row height for editing
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self.resizeRowsToContents()
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# Update start times in case a start time in a note has been
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# edited
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self.data_model.update_track_times()
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# Deselect edited line
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self.clear_selection()
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def dropEvent(self, event):
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if event.source() is not self or (
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event.dropAction() != Qt.DropAction.MoveAction
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and self.dragDropMode() != QAbstractItemView.InternalMove
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):
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super().dropEvent(event)
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from_rows = self.selected_model_row_numbers()
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to_row = self.indexAt(event.position().toPoint()).row()
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if (
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0 <= min(from_rows) <= self.model().rowCount()
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and 0 <= max(from_rows) <= self.model().rowCount()
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and 0 <= to_row <= self.model().rowCount()
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):
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self.model().move_rows(from_rows, to_row)
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# Reset drag mode to allow row selection by dragging
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self.setDragEnabled(False)
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# Deselect rows
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self.clear_selection()
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# Resize rows
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self.resizeRowsToContents()
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event.accept()
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@overload
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def edit(self, index: QModelIndex) -> None:
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...
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@overload
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def edit(
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self,
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index: QModelIndex,
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trigger: QAbstractItemView.EditTrigger,
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event: Optional[QEvent]
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) -> bool:
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...
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def edit(self, index, trigger, event):
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"""
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Override QAbstractItemView.edit to catch when editing starts
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Editing only ever starts with a double click on a cell
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"""
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# 'result' will only be true on double-click
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result = super().edit(index, trigger, event)
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if result:
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self.musicmuster.disable_play_next_controls()
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return result
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def mouseReleaseEvent(self, event):
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"""
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Enable dragging if rows are selected
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"""
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if self.selectedIndexes():
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self.setDragEnabled(True)
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else:
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self.setDragEnabled(False)
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self.reset()
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super().mouseReleaseEvent(event)
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def selectionChanged(
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self, selected: QItemSelection, deselected: QItemSelection
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) -> None:
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"""
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Toggle drag behaviour according to whether rows are selected
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"""
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selected_rows = self.get_selected_rows()
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# If no rows are selected, we have nothing to do
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if len(selected_rows) == 0:
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self.musicmuster.lblSumPlaytime.setText("")
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else:
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selected_duration = self.data_model.get_rows_duration(
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self.get_selected_rows()
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)
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if selected_duration > 0:
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self.musicmuster.lblSumPlaytime.setText(
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f"Selected duration: {ms_to_mmss(selected_duration)}"
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)
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else:
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self.musicmuster.lblSumPlaytime.setText("")
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super().selectionChanged(selected, deselected)
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# ########## Custom functions ##########
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def _add_context_menu(
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self,
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text: str,
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action: Callable,
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disabled: bool = False,
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parent_menu: Optional[QMenu] = None,
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) -> Optional[QAction]:
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"""
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Add item to self.menu
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"""
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if parent_menu is None:
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parent_menu = self.menu
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menu_item = parent_menu.addAction(text)
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if not menu_item:
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return None
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menu_item.setDisabled(disabled)
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menu_item.triggered.connect(action)
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return menu_item
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def _add_track(self) -> None:
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"""Add a track to a section header making it a normal track row"""
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model_row_number = self.selected_model_row_number()
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if model_row_number is None:
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return
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with Session() as session:
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dlg = TrackSelectDialog(
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session=session,
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new_row_number=model_row_number,
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model=self.data_model,
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add_to_header=True,
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)
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dlg.exec()
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def _build_context_menu(self, item: QTableWidgetItem) -> None:
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"""Used to process context (right-click) menu, which is defined here"""
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self.menu.clear()
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model = self.proxy_model
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display_row_number = item.row()
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if hasattr(model, "mapToSource"):
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index = model.index(item.row(), item.column())
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model_row_number = model.mapToSource(index).row()
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else:
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model_row_number = display_row_number
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header_row = model.is_header_row(model_row_number)
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track_row = not header_row
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current_row = model_row_number == track_sequence.now.plr_rownum
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next_row = model_row_number == track_sequence.next.plr_rownum
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# Open in Audacity
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if track_row and not current_row:
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self._add_context_menu(
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"Open in Audacity", lambda: model.open_in_audacity(model_row_number)
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)
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# Rescan
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if track_row and not current_row:
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self._add_context_menu(
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"Rescan track", lambda: self._rescan(model_row_number)
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)
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# ----------------------
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self.menu.addSeparator()
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# Delete row
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if not current_row and not next_row:
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self._add_context_menu("Delete row", lambda: self._delete_rows())
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# Remove track from row
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if track_row and not current_row and not next_row:
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self._add_context_menu(
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"Remove track from row", lambda: model.remove_track(model_row_number)
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)
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# Add track to section header (ie, make this a track row)
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if header_row:
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self._add_context_menu("Add a track", lambda: self._add_track())
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# # ----------------------
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self.menu.addSeparator()
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# Mark unplayed
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if track_row and model.is_played_row(model_row_number):
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self._add_context_menu(
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"Mark unplayed",
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lambda: self._mark_as_unplayed(self.get_selected_rows()),
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)
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# Unmark as next
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if next_row:
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self._add_context_menu(
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"Unmark as next track", lambda: self._unmark_as_next()
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)
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# ----------------------
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self.menu.addSeparator()
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# Sort
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sort_menu = self.menu.addMenu("Sort")
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self._add_context_menu(
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"by title",
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lambda: model.sort_by_title(self.get_selected_rows()),
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parent_menu=sort_menu,
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)
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self._add_context_menu(
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"by artist",
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lambda: model.sort_by_artist(self.get_selected_rows()),
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parent_menu=sort_menu,
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)
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self._add_context_menu(
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"by duration",
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lambda: model.sort_by_duration(self.get_selected_rows()),
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parent_menu=sort_menu,
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)
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self._add_context_menu(
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"by last played",
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lambda: model.sort_by_lastplayed(self.get_selected_rows()),
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parent_menu=sort_menu,
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)
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# Info
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if track_row:
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self._add_context_menu("Info", lambda: self._info_row(model_row_number))
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# Track path
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if track_row:
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self._add_context_menu(
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"Copy track path", lambda: self._copy_path(model_row_number)
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)
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def clear_selection(self) -> None:
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"""Unselect all tracks and reset drag mode"""
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self.clearSelection()
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self.setDragEnabled(False)
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def _column_resize(self, column_number: int, _old: int, _new: int) -> None:
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"""
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Called when column width changes. Save new width to database.
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"""
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header = self.horizontalHeader()
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if not header:
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return
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# Resize rows if necessary
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self.resizeRowsToContents()
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with Session() as session:
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attr_name = f"playlist_col_{column_number}_width"
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record = Settings.get_int_settings(session, attr_name)
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record.f_int = self.columnWidth(column_number)
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def _context_menu(self, pos):
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"""Display right-click menu"""
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item = self.indexAt(pos)
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self._build_context_menu(item)
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self.menu.exec(self.mapToGlobal(pos))
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def _copy_path(self, row_number: int) -> None:
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"""
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If passed row_number has a track, copy the track path, single-quoted,
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to the clipboard. Otherwise, return None.
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"""
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track_path = self.data_model.get_row_info(row_number).path
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if not track_path:
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return
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replacements = [
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("'", "\\'"),
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(" ", "\\ "),
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("(", "\\("),
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(")", "\\)"),
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]
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for old, new in replacements:
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track_path = track_path.replace(old, new)
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cb = QApplication.clipboard()
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if cb:
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cb.clear(mode=cb.Mode.Clipboard)
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cb.setText(track_path, mode=cb.Mode.Clipboard)
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def _delete_rows(self) -> None:
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"""
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Delete mutliple rows
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Actions required:
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- Confirm deletion should go ahead
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- Pass to model to do the deed
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"""
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rows_to_delete = self.get_selected_rows()
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row_count = len(rows_to_delete)
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if row_count < 1:
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return
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# Get confirmation
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plural = "s" if row_count > 1 else ""
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if not ask_yes_no("Delete rows", f"Really delete {row_count} row{plural}?"):
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return
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self.data_model.delete_rows(self.selected_model_row_numbers())
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self.clear_selection()
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def get_selected_row_track_path(self) -> str:
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"""
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Return the path of the selected row. If no row selected or selected
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row does not have a track, return empty string.
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"""
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model_row_number = self.selected_model_row_number()
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if model_row_number is None:
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return ""
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return self.data_model.get_row_track_path(model_row_number)
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def get_selected_rows(self) -> List[int]:
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"""Return a list of selected row numbers sorted by row"""
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# Use a set to deduplicate result (a selected row will have all
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# items in that row selected)
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return sorted(list(set([a.row() for a in self.selectedIndexes()])))
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def _info_row(self, row_number: int) -> None:
|
|
"""Display popup with info re row"""
|
|
|
|
prd = self.data_model.get_row_info(row_number)
|
|
if prd:
|
|
txt = (
|
|
f"Title: {prd.title}\n"
|
|
f"Artist: {prd.artist}\n"
|
|
f"Track ID: {prd.track_id}\n"
|
|
f"Track duration: {ms_to_mmss(prd.duration)}\n"
|
|
f"Track bitrate: {prd.bitrate}\n"
|
|
"\n\n"
|
|
f"Path: {prd.path}\n"
|
|
)
|
|
else:
|
|
txt = f"Can't find info about row{row_number}"
|
|
|
|
show_OK(self.musicmuster, "Track info", txt)
|
|
|
|
def _mark_as_unplayed(self, row_numbers: List[int]) -> None:
|
|
"""Rescan track"""
|
|
|
|
self.data_model.mark_unplayed(row_numbers)
|
|
self.clear_selection()
|
|
|
|
def _rescan(self, row_number: int) -> None:
|
|
"""Rescan track"""
|
|
|
|
self.data_model.rescan_track(row_number)
|
|
self.clear_selection()
|
|
|
|
def scroll_to_top(self, row_number: int) -> None:
|
|
"""
|
|
Scroll to put passed row_number Config.SCROLL_TOP_MARGIN from the
|
|
top.
|
|
"""
|
|
|
|
if row_number is None:
|
|
return
|
|
|
|
row_index = self.proxy_model.index(row_number, 0)
|
|
self.scrollTo(row_index, QAbstractItemView.ScrollHint.PositionAtTop)
|
|
|
|
def select_duplicate_rows(self) -> None:
|
|
"""
|
|
Select the last of any rows with duplicate tracks in current playlist.
|
|
This allows the selection to typically come towards the end of the playlist away
|
|
from any show specific sections.
|
|
"""
|
|
|
|
# Clear any selected rows to avoid confustion
|
|
self.clear_selection()
|
|
# We need to be in MultiSelection mode
|
|
self.setSelectionMode(QAbstractItemView.SelectionMode.MultiSelection)
|
|
# Get the duplicate rows
|
|
duplicate_rows = self.data_model.get_duplicate_rows()
|
|
# Select the rows
|
|
for duplicate_row in duplicate_rows:
|
|
self.selectRow(duplicate_row)
|
|
# Reset selection mode
|
|
self.setSelectionMode(QAbstractItemView.SelectionMode.ExtendedSelection)
|
|
|
|
def selected_model_row_number(self) -> Optional[int]:
|
|
"""
|
|
Return the model row number corresponding to the selected row or None
|
|
"""
|
|
|
|
selected_index = self._selected_row_index()
|
|
if selected_index is None:
|
|
return None
|
|
if hasattr(self.proxy_model, "mapToSource"):
|
|
return self.proxy_model.mapToSource(selected_index).row()
|
|
return selected_index.row()
|
|
|
|
def selected_model_row_numbers(self) -> List[int]:
|
|
"""
|
|
Return a list of model row numbers corresponding to the selected rows or
|
|
an empty list.
|
|
"""
|
|
|
|
selected_indexes = self._selected_row_indexes()
|
|
if selected_indexes is None:
|
|
return []
|
|
if hasattr(self.proxy_model, "mapToSource"):
|
|
return [self.proxy_model.mapToSource(a).row() for a in selected_indexes]
|
|
return [a.row() for a in selected_indexes]
|
|
|
|
def _selected_row_index(self) -> Optional[QModelIndex]:
|
|
"""
|
|
Return the selected row index or None if none selected.
|
|
"""
|
|
|
|
row_indexes = self._selected_row_indexes()
|
|
|
|
if len(row_indexes) > 1:
|
|
show_warning(
|
|
self.musicmuster, "Multiple rows selected", "Select only one row"
|
|
)
|
|
return None
|
|
elif not row_indexes:
|
|
return None
|
|
|
|
return row_indexes[0]
|
|
|
|
def _selected_row_indexes(self) -> List[QModelIndex]:
|
|
"""
|
|
Return a list of indexes of column 1 of selected rows
|
|
"""
|
|
|
|
sm = self.selectionModel()
|
|
if sm and sm.hasSelection():
|
|
return sm.selectedRows()
|
|
return []
|
|
|
|
def _set_column_widths(self) -> None:
|
|
"""Column widths from settings"""
|
|
|
|
header = self.horizontalHeader()
|
|
if not header:
|
|
return
|
|
|
|
# Set width of last column to zero as it's set to stretch
|
|
self.setColumnWidth(header.count() - 1, 0)
|
|
|
|
# Set remaining column widths from settings
|
|
with Session() as session:
|
|
for column_number in range(header.count() - 1):
|
|
attr_name = f"playlist_col_{column_number}_width"
|
|
record = Settings.get_int_settings(session, attr_name)
|
|
if record.f_int is not None:
|
|
self.setColumnWidth(column_number, record.f_int)
|
|
else:
|
|
self.setColumnWidth(column_number, Config.DEFAULT_COLUMN_WIDTH)
|
|
|
|
def set_row_as_next_track(self) -> None:
|
|
"""
|
|
Set selected row as next track
|
|
"""
|
|
|
|
model_row_number = self.selected_model_row_number()
|
|
if model_row_number is None:
|
|
return
|
|
self.data_model.set_next_row(model_row_number)
|
|
self.clearSelection()
|
|
|
|
def _span_cells(
|
|
self, playlist_id: int, row: int, column: int, rowSpan: int, columnSpan: int
|
|
) -> None:
|
|
"""
|
|
Implement spanning of cells, initiated by signal
|
|
"""
|
|
|
|
if playlist_id != self.playlist_id:
|
|
return
|
|
|
|
model = self.proxy_model
|
|
if hasattr(model, "mapToSource"):
|
|
edit_index = model.mapFromSource(self.data_model.createIndex(row, column))
|
|
row = edit_index.row()
|
|
column = edit_index.column()
|
|
|
|
# Don't set spanning if already in place because that is seen as
|
|
# a change to the view and thus it refreshes the data which
|
|
# again calls us here.
|
|
if (
|
|
self.rowSpan(row, column) == rowSpan
|
|
and self.columnSpan(row, column) == columnSpan
|
|
):
|
|
return
|
|
|
|
self.setSpan(row, column, rowSpan, columnSpan)
|
|
|
|
def _unmark_as_next(self) -> None:
|
|
"""Rescan track"""
|
|
|
|
self.data_model.set_next_row(None)
|
|
self.clear_selection()
|