Veronica Berglyd Olsen
126 lines
4.1 KiB
Python
126 lines
4.1 KiB
Python
"""
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novelWriter – Custom Widget: Switch Box
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=======================================
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File History:
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Created: 2023-04-16 [2.1b1]
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This file is a part of novelWriter
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Copyright (C) 2023 Veronica Berglyd Olsen and novelWriter contributors
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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""" # noqa
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from __future__ import annotations
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from typing import TYPE_CHECKING
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from PyQt6.QtCore import pyqtSignal
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from PyQt6.QtWidgets import QGridLayout, QLabel, QScrollArea, QWidget
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from novelwriter.extensions.switch import NSwitch
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from novelwriter.types import (
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QtAlignLeft, QtAlignRight, QtAlignRightMiddle, QtSizeMinimum,
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QtSizeMinimumExpanding
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)
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if TYPE_CHECKING:
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from PyQt6.QtGui import QIcon
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class NSwitchBox(QScrollArea):
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"""Extension: Switch Box Widget.
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A widget that can hold a list of switches with labels and optional
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icons. The switch toggles emits a common signal with a switch key.
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"""
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switchToggled = pyqtSignal(str, bool)
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def __init__(self, parent: QWidget, baseSize: int) -> None:
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super().__init__(parent=parent)
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self._index = 0
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self._hSwitch = baseSize
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self._wSwitch = 2*self._hSwitch
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self._sIcon = baseSize
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self._widgets = []
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self.clear()
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def clear(self) -> None:
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"""Rebuild the content of the core widget."""
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self._index = 0
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self._widgets = []
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self._content = QGridLayout()
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self._content.setColumnStretch(1, 1)
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self._widget = QWidget(self)
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self._widget.setSizePolicy(QtSizeMinimumExpanding, QtSizeMinimum)
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self._widget.setLayout(self._content)
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self.setWidgetResizable(True)
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self.setWidget(self._widget)
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def addLabel(self, text: str) -> None:
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"""Add a header label to the content box."""
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label = QLabel(text, self)
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font = label.font()
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font.setBold(True)
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label.setFont(font)
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self._content.addWidget(label, self._index, 0, 1, 3, QtAlignLeft)
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self._widgets.append(label)
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self._bumpIndex()
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def addItem(self, qIcon: QIcon, text: str, identifier: str, default: bool = False) -> None:
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"""Add an item to the content box."""
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icon = QLabel("", self)
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icon.setAlignment(QtAlignRightMiddle)
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icon.setPixmap(qIcon.pixmap(self._sIcon, self._sIcon))
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self._content.addWidget(icon, self._index, 0, QtAlignLeft)
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label = QLabel(text, self)
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self._content.addWidget(label, self._index, 1, QtAlignLeft)
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switch = NSwitch(self, height=self._hSwitch)
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switch.setChecked(default)
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switch.toggled.connect(lambda state: self._emitSwitchSignal(identifier, state))
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self._content.addWidget(switch, self._index, 2, QtAlignRight)
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label.setBuddy(switch)
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self._widgets.append(switch)
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self._bumpIndex()
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def addSeparator(self) -> None:
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"""Add a blank entry in the content box."""
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spacer = QWidget(self)
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spacer.setFixedHeight(int(0.5*self._sIcon))
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self._content.addWidget(spacer, self._index, 0, 1, 3, QtAlignLeft)
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self._widgets.append(spacer)
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self._bumpIndex()
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##
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# Internal Functions
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##
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def _emitSwitchSignal(self, identifier: str, state: bool) -> None:
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"""Emit a signal for a switch toggle."""
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self.switchToggled.emit(identifier, state)
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def _bumpIndex(self) -> None:
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"""Increase the index counter and make sure only the last
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columns is stretching.
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"""
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self._content.setRowStretch(self._index, 0)
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self._content.setRowStretch(self._index + 1, 1)
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self._index += 1
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