125 lines
3.7 KiB
Python
125 lines
3.7 KiB
Python
# coding:utf-8
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from PySide6.QtCore import QEasingCurve, Qt, QPropertyAnimation
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from PySide6.QtGui import QWheelEvent
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from PySide6.QtWidgets import QScrollArea, QScrollBar
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from ...common.smooth_scroll import SmoothScroll, SmoothMode
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from .scroll_bar import ScrollBar, SmoothScrollBar, SmoothScrollDelegate
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class ScrollArea(QScrollArea):
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""" Smooth scroll area """
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def __init__(self, parent=None):
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super().__init__(parent)
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self.scrollDelagate = SmoothScrollDelegate(self)
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def setSmoothMode(self, mode: SmoothMode, orientation: Qt.Orientation):
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""" set smooth mode
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Parameters
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----------
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mode: SmoothMode
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smooth scroll mode
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orientation: Qt.Orientation
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scroll direction
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"""
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if orientation == Qt.Orientation.Vertical:
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self.scrollDelagate.verticalSmoothScroll.setSmoothMode(mode)
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else:
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self.scrollDelagate.horizonSmoothScroll.setSmoothMode(mode)
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def enableTransparentBackground(self):
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self.setStyleSheet("QScrollArea{border: none; background: transparent}")
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if self.widget():
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self.widget().setStyleSheet("QWidget{background: transparent}")
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class SingleDirectionScrollArea(QScrollArea):
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""" Single direction scroll area"""
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def __init__(self, parent=None, orient=Qt.Vertical):
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"""
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Parameters
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----------
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parent: QWidget
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parent widget
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orient: Orientation
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scroll orientation
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"""
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super().__init__(parent)
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self.orient = orient
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self.smoothScroll = SmoothScroll(self, orient)
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self.vScrollBar = SmoothScrollBar(Qt.Vertical, self)
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self.hScrollBar = SmoothScrollBar(Qt.Horizontal, self)
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def setVerticalScrollBarPolicy(self, policy):
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super().setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
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self.vScrollBar.setForceHidden(policy == Qt.ScrollBarAlwaysOff)
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def setHorizontalScrollBarPolicy(self, policy):
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super().setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
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self.hScrollBar.setForceHidden(policy == Qt.ScrollBarAlwaysOff)
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def setSmoothMode(self, mode):
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""" set smooth mode
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Parameters
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----------
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mode: SmoothMode
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smooth scroll mode
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"""
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self.smoothScroll.setSmoothMode(mode)
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def keyPressEvent(self, e):
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if e.key() in [Qt.Key_Left, Qt.Key_Right]:
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return
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return super().keyPressEvent(e)
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def wheelEvent(self, e: QWheelEvent):
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if e.angleDelta().x() != 0:
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return
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self.smoothScroll.wheelEvent(e)
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e.setAccepted(True)
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def enableTransparentBackground(self):
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self.setStyleSheet("QScrollArea{border: none; background: transparent}")
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if self.widget():
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self.widget().setStyleSheet("QWidget{background: transparent}")
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class SmoothScrollArea(QScrollArea):
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""" Smooth scroll area """
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def __init__(self, parent=None):
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super().__init__(parent)
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self.delegate = SmoothScrollDelegate(self, True)
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def setScrollAnimation(self, orient, duration, easing=QEasingCurve.OutCubic):
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""" set scroll animation
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Parameters
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----------
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orient: Orient
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scroll orientation
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duration: int
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scroll duration
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easing: QEasingCurve
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animation type
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"""
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bar = self.delegate.hScrollBar if orient == Qt.Horizontal else self.delegate.vScrollBar
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bar.setScrollAnimation(duration, easing)
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def enableTransparentBackground(self):
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self.setStyleSheet("QScrollArea{border: none; background: transparent}")
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if self.widget():
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self.widget().setStyleSheet("QWidget{background: transparent}") |