40 lines
1.2 KiB
Python
40 lines
1.2 KiB
Python
from PyQt5.QtWidgets import QLabel
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from PyQt5.QtCore import Qt
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class FixedAspectRatioLabel(QLabel):
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"""Subclass QLabel. A resizable label class."""
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def __init__(self, parent = None):
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"""Initialize the instance. Set the pixmap to None."""
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super().__init__(parent)
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self.pixmap = None
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def set_default_stylesheet(self):
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"""Set the initial stylesheet of the label."""
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self.setStyleSheet("""border-width: 1px;
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border-style: solid;
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border-color: black;"""
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)
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def make_transparent(self):
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"""Make the label transparent.
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Remove text and border."""
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self.setText('')
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self.setStyleSheet("border-width: 0px;")
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def apply_pixmap(self):
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"""Apply a scaled pixmap without modifying the dimension of the original one."""
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if self.pixmap:
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self.setPixmap(
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self.pixmap.scaled(
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self.size(), Qt.IgnoreAspectRatio, Qt.SmoothTransformation
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)
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)
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def rescale(self, size):
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"""Rescale the widget and the displayed pixmap to the given size."""
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self.resize(size)
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self.apply_pixmap()
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