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https://github.com/283375/arcaea-offline-pyside-ui.git
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51 lines
1.5 KiB
Python
51 lines
1.5 KiB
Python
from PySide6.QtCore import Qt
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from PySide6.QtWidgets import QLabel
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class ElidedLabel(QLabel):
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"""
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Adapted from https://wiki.qt.io/Elided_Label
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"""
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def __init__(self, parent=None):
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super().__init__(parent)
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self.__elideMode: Qt.TextElideMode = Qt.TextElideMode.ElideNone
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self.__cachedElidedText = ""
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self.__cachedText = ""
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def elideMode(self):
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return self.__elideMode
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def setElideMode(self, mode):
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self.__elideMode = mode
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self.__cachedText = ""
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self.update()
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def resizeEvent(self, event):
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super().resizeEvent(event)
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self.__cachedText = ""
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def paintEvent(self, event) -> None:
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if self.__elideMode == Qt.TextElideMode.ElideNone:
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return super().paintEvent(event)
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self.updateCachedTexts()
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super().setText(self.__cachedElidedText)
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super().paintEvent(event)
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super().setText(self.__cachedText)
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def updateCachedTexts(self):
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text = self.text()
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if self.__cachedText == text:
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return
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self.__cachedText = text
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fontMetrics = self.fontMetrics()
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self.__cachedElidedText = fontMetrics.elidedText(
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self.text(), self.__elideMode, self.width(), Qt.TextFlag.TextShowMnemonic
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)
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# make sure to show at least the first character
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if self.__cachedText:
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firstChar = f"{self.__cachedText[0]}..."
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self.setMinimumWidth(fontMetrics.horizontalAdvance(firstChar) + 1)
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