diff -r a081458cc57b -r 144a6b854f70 eric7/EricWidgets/EricAnimatedWidget.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/eric7/EricWidgets/EricAnimatedWidget.py Sat May 22 19:58:24 2021 +0200
@@ -0,0 +1,121 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2015 - 2021 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing an animated widget.
+"""
+
+#
+# Code was inspired by qupzilla web browser
+#
+
+from PyQt6.QtCore import pyqtSlot, QTimeLine, QPoint
+from PyQt6.QtWidgets import QWidget
+
+
+class EricAnimatedWidget(QWidget):
+ """
+ Class implementing an animated widget.
+ """
+ DirectionDown = 0
+ DirectionUp = 1
+
+ def __init__(self, direction=DirectionDown, duration=300, parent=None):
+ """
+ Constructor
+
+ @param direction direction of the animation
+ @type int (one of DirectionDown or DirectionUp)
+ @param duration duration of the animation
+ @type int
+ @param parent reference to the parent widget
+ @type QWidget
+ """
+ super().__init__(parent)
+
+ self.__direction = direction
+ self.__stepHeight = 0.0
+ self.__stepY = 0.0
+ self.__startY = 0
+ self.__widget = QWidget(self)
+
+ self.__timeline = QTimeLine(duration)
+ self.__timeline.setFrameRange(0, 100)
+ self.__timeline.frameChanged.connect(self.__animateFrame)
+
+ self.setMaximumHeight(0)
+
+ def widget(self):
+ """
+ Public method to get a reference to the animated widget.
+
+ @return reference to the animated widget
+ @rtype QWidget
+ """
+ return self.__widget
+
+ @pyqtSlot()
+ def startAnimation(self):
+ """
+ Public slot to start the animation.
+ """
+ if self.__timeline.state() == QTimeLine.State.Running:
+ return
+
+ shown = 0
+ hidden = 0
+
+ if self.__direction == self.DirectionDown:
+ shown = 0
+ hidden = -self.__widget.height()
+
+ self.__widget.move(QPoint(self.__widget.pos().x(), hidden))
+
+ self.__stepY = (hidden - shown) / 100.0
+ self.__startY = hidden
+ self.__stepHeight = self.__widget.height() / 100.0
+
+ self.__timeline.setDirection(QTimeLine.Direction.Forward)
+ self.__timeline.start()
+
+ @pyqtSlot(int)
+ def __animateFrame(self, frame):
+ """
+ Private slot to animate the next frame.
+
+ @param frame frame number
+ @type int
+ """
+ self.setFixedHeight(frame * self.__stepHeight)
+ self.__widget.move(self.pos().x(),
+ self.__startY - frame * self.__stepY)
+
+ @pyqtSlot()
+ def hide(self):
+ """
+ Public slot to hide the animated widget.
+ """
+ if self.__timeline.state() == QTimeLine.State.Running:
+ return
+
+ self.__timeline.setDirection(QTimeLine.Direction.Backward)
+ self.__timeline.finished.connect(self.close)
+ self.__timeline.start()
+
+ p = self.parentWidget()
+ if p is not None:
+ p.setFocus()
+
+ def resizeEvent(self, evt):
+ """
+ Protected method to handle a resize event.
+
+ @param evt reference to the event object
+ @type QResizeEvent
+ """
+ if evt.size().width() != self.__widget.width():
+ self.__widget.resize(evt.size().width(), self.__widget.height())
+
+ super().resizeEvent(evt)
