Veronica Berglyd Olsen
323 lines
10 KiB
Python
323 lines
10 KiB
Python
"""
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novelWriter – Custom Widget: Config Layout
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==========================================
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File History:
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Created: 2020-05-03 [0.4.5] NColourLabel
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Created: 2024-01-08 [2.3b1] NScrollableForm
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Created: 2024-01-26 [2.3b1] NScrollablePage
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Created: 2024-01-26 [2.3b1] NFixedPage
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Created: 2024-03-12 [2.4b1] NWrappedWidgetBox
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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 PyQt6.QtGui import QColor, QFont, QPalette, QPixmap
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from PyQt6.QtWidgets import (
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QAbstractButton, QFrame, QHBoxLayout, QLabel, QLayout, QScrollArea,
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QVBoxLayout, QWidget
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)
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from novelwriter.types import QtScrollAsNeeded
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DEFAULT_SCALE = 0.9
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class NFixedPage(QFrame):
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"""Extension: Fixed Page Widget.
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A custom widget that holds a layout. This is just a wrapper around a
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QFrame that sets the same frame style as the other Page widgets.
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"""
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def __init__(self, parent: QWidget) -> None:
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super().__init__(parent=parent)
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self.setFrameShadow(QFrame.Shadow.Sunken)
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self.setFrameShape(QFrame.Shape.StyledPanel)
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def setCentralLayout(self, layout: QLayout) -> None:
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"""Set a layout as the central object."""
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self.setLayout(layout)
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def setCentralWidget(self, widget: QWidget) -> None:
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"""Set a layout as the central object."""
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layout = QHBoxLayout()
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layout.addWidget(widget)
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self.setLayout(layout)
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class NScrollablePage(QScrollArea):
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"""Extension: Scrollable Page Widget.
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A custom widget that holds a layout within a scrollable area.
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"""
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def __init__(self, parent: QWidget) -> None:
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super().__init__(parent=parent)
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self._widget = QWidget(self)
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self.setWidget(self._widget)
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self.setWidgetResizable(True)
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self.setHorizontalScrollBarPolicy(QtScrollAsNeeded)
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self.setVerticalScrollBarPolicy(QtScrollAsNeeded)
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self.setFrameShadow(QFrame.Shadow.Sunken)
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self.setFrameShape(QFrame.Shape.StyledPanel)
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def setCentralLayout(self, layout: QLayout) -> None:
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"""Set the central layout of the scroll page."""
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self._widget.setLayout(layout)
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class NScrollableForm(QScrollArea):
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"""Extension: Scrollable Form Widget.
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A custom widget that creates a form within a scrollable area.
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"""
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def __init__(self, parent: QWidget) -> None:
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super().__init__(parent=parent)
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self._helpCol = QColor(0, 0, 0)
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self._fontScale = DEFAULT_SCALE
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self._first = True
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self._indent = 12
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self._sections: dict[int, QLabel] = {}
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self._editable: dict[str, NColorLabel] = {}
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self._index: dict[str, QWidget] = {}
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self._layout = QVBoxLayout()
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self._layout.setSpacing(12)
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self._widget = QWidget(self)
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self._widget.setLayout(self._layout)
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self.setWidget(self._widget)
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self.setWidgetResizable(True)
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self.setHorizontalScrollBarPolicy(QtScrollAsNeeded)
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self.setVerticalScrollBarPolicy(QtScrollAsNeeded)
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self.setFrameShadow(QFrame.Shadow.Sunken)
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self.setFrameShape(QFrame.Shape.StyledPanel)
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##
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# Properties
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##
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@property
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def labels(self) -> list[str]:
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return list(self._index.keys())
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##
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# Setters
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##
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def setHelpTextStyle(self, color: QColor, scale: float = DEFAULT_SCALE) -> None:
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"""Set the text color for the help text."""
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self._helpCol = color
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self._fontScale = scale
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def setHelpText(self, key: str, text: str) -> None:
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"""Set the text for the help label."""
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if qHelp := self._editable.get(key):
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qHelp.setText(text)
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def setRowIndent(self, indent: int) -> None:
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"""Set the indentation of each row."""
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self._indent = max(indent, 0)
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##
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# Methods
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##
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def scrollToSection(self, identifier: int) -> None:
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"""Scroll to the requested section identifier."""
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if identifier in self._sections:
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yPos = self._sections[identifier].pos().y() - 8
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if vBar := self.verticalScrollBar():
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vBar.setValue(yPos)
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def scrollToLabel(self, label: str) -> None:
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"""Scroll to the requested label."""
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if label in self._index:
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yPos = self._index[label].pos().y() - 8
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if vBar := self.verticalScrollBar():
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vBar.setValue(yPos)
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def addGroupLabel(self, label: str, identifier: int | None = None) -> None:
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"""Add a text label to separate groups of settings."""
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qLabel = QLabel(f"<b>{label}</b>", self)
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qLabel.setContentsMargins(0, 4, 0, 4)
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if not self._first:
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self._layout.addSpacing(20)
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self._layout.addWidget(qLabel)
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self._first = False
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if identifier is not None:
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self._sections[identifier] = qLabel
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def addRow(
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self,
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label: str | None,
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widget: QWidget | list[QWidget | QPixmap | int],
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helpText: str = "",
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unit: str | None = None,
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button: QWidget | None = None,
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editable: str | None = None,
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stretch: tuple[int, int] = (1, 0),
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) -> None:
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"""Add a label and a widget as a new row of the form."""
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row = QHBoxLayout()
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row.setSpacing(12)
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if isinstance(widget, list):
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wBox = QHBoxLayout()
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wBox.setContentsMargins(0, 0, 0, 0)
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for item in widget:
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if isinstance(item, QWidget):
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wBox.addWidget(item)
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elif isinstance(item, QPixmap):
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icon = QLabel(self)
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icon.setPixmap(item)
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wBox.addWidget(icon)
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elif isinstance(item, int):
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wBox.addSpacing(item)
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qWidget = QWidget(self)
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qWidget.setLayout(wBox)
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else:
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qWidget = widget
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text = label or ""
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qLabel = QLabel(text, self)
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qLabel.setIndent(self._indent)
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qLabel.setBuddy(qWidget)
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if helpText:
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qHelp = NColorLabel(
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str(helpText), self, color=self._helpCol,
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scale=self._fontScale, wrap=True, indent=self._indent
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)
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labelBox = QVBoxLayout()
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labelBox.addWidget(qLabel, 0)
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labelBox.addWidget(qHelp, 1)
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labelBox.setSpacing(0)
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row.addLayout(labelBox, stretch[0])
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if editable:
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self._editable[editable] = qHelp
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text = f"{text}: {helpText}"
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else:
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row.addWidget(qLabel, stretch[0])
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if isinstance(unit, str):
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box = QHBoxLayout()
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box.addWidget(qWidget, 1)
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box.addWidget(QLabel(unit, self), 0)
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row.addLayout(box, stretch[1])
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text = f"{text} Unit: {unit}"
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elif isinstance(button, QAbstractButton):
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box = QHBoxLayout()
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box.addWidget(qWidget, 1)
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box.addWidget(button, 0)
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row.addLayout(box, stretch[1])
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else:
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row.addWidget(qWidget, stretch[1])
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self._first = False
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self._layout.addLayout(row)
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if label:
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self._index[label.strip()] = qWidget
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qLabel.setAccessibleName(text)
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def finalise(self) -> None:
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"""Finalise the layout when the form is built."""
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self._layout.addSpacing(20)
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self._layout.addStretch(1)
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class NColorLabel(QLabel):
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"""Extension: A Coloured Label.
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A custom widget that draws a label in a specific colour, and
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optionally at a specific size, and word wrapped.
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"""
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HELP_SCALE = DEFAULT_SCALE
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HEADER_SCALE = 1.25
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_state = None
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def __init__(
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self, text: str, parent: QWidget, *,
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color: QColor | None = None, faded: QColor | None = None,
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scale: float = HELP_SCALE, wrap: bool = False, indent: int = 0,
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bold: bool = False
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) -> None:
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super().__init__(text, parent=parent)
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default = self.palette().windowText().color()
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self._color = color or default
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self._faded = faded or default
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font = self.font()
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font.setPointSizeF(scale*font.pointSizeF())
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font.setWeight(QFont.Weight.Bold if bold else QFont.Weight.Normal)
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if color:
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colour = self.palette()
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colour.setColor(QPalette.ColorRole.WindowText, color)
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self.setPalette(colour)
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self.setFont(font)
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self.setIndent(indent)
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self.setWordWrap(wrap)
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self.setColorState(True)
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def setTextColors(self, *, color: QColor | None = None, faded: QColor | None = None) -> None:
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"""Set or update the text colours."""
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self._color = color or self._color
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self._faded = faded or self._faded
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self._refeshTextColor()
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def setColorState(self, state: bool) -> None:
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"""Change the colour state."""
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if self._state is not state:
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self._state = state
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self._refeshTextColor()
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def _refeshTextColor(self) -> None:
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"""Refresh the colour of the text on the label."""
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palette = self.palette()
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palette.setColor(
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QPalette.ColorRole.WindowText,
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self._color if self._state else self._faded,
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)
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self.setPalette(palette)
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class NWrappedWidgetBox(QHBoxLayout):
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"""Extension: A Text-Wrapped Widget Box.
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A custom layout box where a widget is wrapped in text labels on
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either side within a layout box. The widget is inserted at the {0}
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position so that it can be used for translation strings.
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"""
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def __init__(self, text: str, widget: QWidget) -> None:
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super().__init__()
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before, _, after = text.partition(r"{0}")
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if before:
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self.addWidget(QLabel(before.rstrip()))
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self.addWidget(widget)
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if after:
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self.addWidget(QLabel(after.lstrip()))
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