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Rare/rare/widgets/elide_label.py
loathingKernel 3e827f4ece ElideLabel: Enable word-wrapping for elided labels.
Word wrapping allows ElideLabel to resize first inside flexible sized
areas such as the contents widget of a scrollarea. This allows the contents
widget to properly resize itself to avoid horizontal scrolling.

Word-wrapping also enables the widget to resize vertically. To avoid that
ElideLabel is set to a fixed height based on font metrics. An overloaded
method `setFixedHeight` has been added to disable it when desired.

EglSyncGroup: Replace estimated path label with a ElideLabel because
the displayed message was expanding the scrollarea.
2023-02-20 14:26:14 +02:00

39 lines
1.3 KiB
Python

from typing import Union
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QFontMetrics, QResizeEvent
from PyQt5.QtWidgets import QLabel, QWIDGETSIZE_MAX
class ElideLabel(QLabel):
def __init__(self, text="", parent=None):
super(ElideLabel, self).__init__(parent=parent)
self.__text = text
self.__fm = QFontMetrics(self.font())
self.setFixedHeight(True)
self.setWordWrap(True)
self.setText(text)
def setText(self, a0: str) -> None:
self.__text = a0
self.__setElideText(a0)
def __setElideText(self, a0: str):
elided_text = self.__fm.elidedText(
a0, Qt.ElideRight,
self.width() - (self.contentsMargins().left() + self.contentsMargins().right())
)
self.setToolTip(self.__text if elided_text != self.__text else "")
super(ElideLabel, self).setText(elided_text)
def resizeEvent(self, a0: QResizeEvent) -> None:
self.__setElideText(self.__text)
super(ElideLabel, self).resizeEvent(a0)
def setFixedHeight(self, h: Union[int, bool]) -> None:
if isinstance(h, bool):
super(ElideLabel, self).setFixedHeight(self.__fm.height() if h else QWIDGETSIZE_MAX)
elif isinstance(h, int):
super(ElideLabel, self).setFixedHeight(h)