91 lines
2.6 KiB
Python
91 lines
2.6 KiB
Python
import base64
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from PySide6.QtCore import QPoint, QRect, Qt
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from PySide6.QtGui import QFont, QFontInfo, QIcon, QPainter, QPixmap
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from PySide6.QtSvg import QSvgRenderer
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from PySide6.QtWidgets import (
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QComboBox,
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QGridLayout,
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QGroupBox,
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QHBoxLayout,
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QLabel,
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QPushButton,
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QScrollArea,
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QSizePolicy,
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QSlider,
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QSpacerItem,
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QVBoxLayout,
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QWidget,
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)
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# _icon_color_from_palette: function definition for ScanSlicer behavior.
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def _icon_color_from_palette(palette):
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if palette is None:
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return "#f2f2f2"
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button_text_color = palette.buttonText().color()
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if button_text_color.isValid():
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return button_text_color.name()
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window_color = palette.window().color()
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luma = (
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(0.2126 * window_color.redF())
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+ (0.7152 * window_color.greenF())
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+ (0.0722 * window_color.blueF())
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)
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return "#1f1f1f" if luma >= 0.5 else "#f2f2f2"
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# icon_from_svg_data_url: function definition for ScanSlicer behavior.
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def icon_from_svg_data_url(data_url, size=24, color_hex=None, palette=None):
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prefix = "data:image/svg+xml;base64,"
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if not data_url.startswith(prefix):
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return None
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try:
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svg_bytes = base64.b64decode(data_url[len(prefix):], validate=True)
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except Exception:
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return None
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if color_hex is None:
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color_hex = _icon_color_from_palette(palette)
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# Most toolbar SVGs use "currentColor"; replace it with the resolved color.
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if color_hex:
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try:
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svg_text = svg_bytes.decode("utf-8")
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svg_text = svg_text.replace("currentColor", color_hex)
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svg_text = svg_text.replace("currentcolor", color_hex)
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svg_bytes = svg_text.encode("utf-8")
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except UnicodeDecodeError:
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pass
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renderer = QSvgRenderer(svg_bytes)
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if not renderer.isValid():
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return None
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pixmap = QPixmap(size, size)
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pixmap.fill(Qt.GlobalColor.transparent)
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painter = QPainter(pixmap)
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renderer.render(painter)
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painter.end()
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return QIcon(pixmap)
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# ScrollbarWheelOnlyScrollArea: class definition for ScanSlicer behavior.
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class ScrollbarWheelOnlyScrollArea(QScrollArea):
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# wheelEvent: function definition for ScanSlicer behavior.
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def wheelEvent(self, event):
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scrollbar = self.verticalScrollBar()
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if scrollbar is None or not scrollbar.isVisible():
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event.ignore()
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return
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global_pos = event.globalPosition().toPoint()
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scrollbar_rect = QRect(scrollbar.mapToGlobal(QPoint(0, 0)), scrollbar.size())
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if not scrollbar_rect.contains(global_pos):
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event.ignore()
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return
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super().wheelEvent(event)
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