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9e31981f03
Manually convert the QPalette object to a QML Palette manually. The conversion is not straight forward anymore, and not performing it leads to an incomplete alternate (light) palette. QML Palette in Qt 5.15 does not support yet disabled elements, the support will only be enabled with Qt 6.
78 lines
4.7 KiB
Python
78 lines
4.7 KiB
Python
from PySide2.QtCore import QObject, Qt, Slot, Property, Signal
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from PySide2.QtGui import QPalette, QColor
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from PySide2.QtWidgets import QApplication
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class PaletteManager(QObject):
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"""
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Manages QApplication's palette and provides a toggle between a dark and a light theme.
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"""
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def __init__(self, qmlEngine, parent=None):
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super(PaletteManager, self).__init__(parent)
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self.qmlEngine = qmlEngine
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darkPalette = QPalette()
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window = QColor(50, 52, 55)
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text = QColor(200, 200, 200)
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disabledText = text.darker(170)
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base = window.darker(150)
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button = window.lighter(115)
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highlight = QColor(42, 130, 218)
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dark = window.darker(170)
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darkPalette.setColor(QPalette.Window, window)
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darkPalette.setColor(QPalette.WindowText, text)
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darkPalette.setColor(QPalette.Disabled, QPalette.WindowText, disabledText)
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darkPalette.setColor(QPalette.Base, base)
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darkPalette.setColor(QPalette.AlternateBase, QColor(46, 47, 48))
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darkPalette.setColor(QPalette.ToolTipBase, base)
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darkPalette.setColor(QPalette.ToolTipText, text)
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darkPalette.setColor(QPalette.Text, text)
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darkPalette.setColor(QPalette.Disabled, QPalette.Text, disabledText)
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darkPalette.setColor(QPalette.Button, button)
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darkPalette.setColor(QPalette.ButtonText, text)
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darkPalette.setColor(QPalette.Disabled, QPalette.ButtonText, disabledText)
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darkPalette.setColor(QPalette.Mid, button.lighter(120))
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darkPalette.setColor(QPalette.Highlight, highlight)
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darkPalette.setColor(QPalette.Disabled, QPalette.Highlight, QColor(80, 80, 80))
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darkPalette.setColor(QPalette.HighlightedText, Qt.white)
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darkPalette.setColor(QPalette.Disabled, QPalette.HighlightedText, QColor(127, 127, 127))
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darkPalette.setColor(QPalette.Shadow, Qt.black)
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darkPalette.setColor(QPalette.Link, highlight.lighter(130))
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self.darkPalette = darkPalette
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self.defaultPalette = QApplication.instance().palette()
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self.togglePalette()
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@Slot()
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def togglePalette(self):
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app = QApplication.instance()
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if app.palette() == self.darkPalette:
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app.setPalette(self.defaultPalette)
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else:
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app.setPalette(self.darkPalette)
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if self.qmlEngine.rootObjects():
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self.qmlEngine.reload()
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self.paletteChanged.emit()
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paletteChanged = Signal()
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palette = Property(QPalette, lambda self: QApplication.instance().palette(), notify=paletteChanged)
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alternateBase = Property(QColor, lambda self: self.palette.color(QPalette.AlternateBase), notify=paletteChanged)
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base = Property(QColor, lambda self: self.palette.color(QPalette.Base), notify=paletteChanged)
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button = Property(QColor, lambda self: self.palette.color(QPalette.Button), notify=paletteChanged)
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buttonText = Property(QColor, lambda self: self.palette.color(QPalette.ButtonText), notify=paletteChanged)
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disabledButtonText = Property(QColor, lambda self: self.palette.color(QPalette.Disabled, QPalette.ButtonText), notify=paletteChanged)
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highlight = Property(QColor, lambda self: self.palette.color(QPalette.Highlight), notify=paletteChanged)
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disabledHighlight = Property(QColor, lambda self: self.palette.color(QPalette.Disabled, QPalette.Highlight), notify=paletteChanged)
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highlightedText = Property(QColor, lambda self: self.palette.color(QPalette.HighlightedText), notify=paletteChanged)
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disabledHighlightedText = Property(QColor, lambda self: self.palette.color(QPalette.Disabled, QPalette.HighlightedText), notify=paletteChanged)
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link = Property(QColor, lambda self: self.palette.color(QPalette.Link), notify=paletteChanged)
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mid = Property(QColor, lambda self: self.palette.color(QPalette.Mid), notify=paletteChanged)
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shadow = Property(QColor, lambda self: self.palette.color(QPalette.Shadow), notify=paletteChanged)
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text = Property(QColor, lambda self: self.palette.color(QPalette.Text), notify=paletteChanged)
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disabledText = Property(QColor, lambda self: self.palette.color(QPalette.Disabled, QPalette.Text), notify=paletteChanged)
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toolTipBase = Property(QColor, lambda self: self.palette.color(QPalette.ToolTipBase), notify=paletteChanged)
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toolTipText = Property(QColor, lambda self: self.palette.color(QPalette.ToolTipText), notify=paletteChanged)
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window = Property(QColor, lambda self: self.palette.color(QPalette.Window), notify=paletteChanged)
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windowText = Property(QColor, lambda self: self.palette.color(QPalette.WindowText), notify=paletteChanged)
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disabledWindowText = Property(QColor, lambda self: self.palette.color(QPalette.Disabled, QPalette.WindowText), notify=paletteChanged)
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