class AnimatedPhotos:
animationRunning = False
curAnimationGroup = 0
animationGroups = [None] * 2
picManager = None
masterScene = None
picChgTimer = None
stepCount = 0
def __init__(
self,
scene,
photoBaseDir,
validPhotoFileExts,
maxCols,
maxRows,
borders,
xBetweenPics,
yBetweenPics,
animationSpeed,
picChangeMs,
):
self.masterScene = scene
self.maxCols = maxCols
self.maxRows = maxRows
self.borders = borders
self.xBetweenPics = xBetweenPics
self.yBetweenPics = yBetweenPics
self.animationSpeed = animationSpeed
self.animationTimeoutMs = 15000
self.picChangeMs = picChangeMs
self.calcCellSize()
self.animTimeout = QTimer()
self.picManager = PicManager(
self.masterScene,
photoBaseDir,
validPhotoFileExts,
maxCols,
maxRows,
QSize(self.xCellSize, self.yCellSize),
borders,
xBetweenPics,
yBetweenPics,
)
def calcCellSize(self):
xWindowSize = self.masterScene.width()
yWindowSize = self.masterScene.height()
self.xCellSize = (
xWindowSize - self.borders[3] - self.borders[1] - self.xBetweenPics * (self.maxCols - 1)
) / self.maxCols
self.yCellSize = (
yWindowSize - self.borders[0] - self.borders[2] - self.yBetweenPics * (self.maxRows - 1)
) / self.maxRows
def start(self):
self.animationRunning = True
QTimer.singleShot(self.picChangeMs, self.stepAnimation)
def stop(self):
self.picManager.stop()
self.animationRunning = False
if self.picChgTimer != None:
self.picChgTimer.stop()
def setNextTransition(self):
# print ("Anim Step ..........", self.stepCount)
self.picManager.setupChange()
self.picManager.addNewPhotosToScene()
group = QParallelAnimationGroup()
self.picManager.addInsertionAnimation(group)
# self.picManager.instantInsert()
self.picManager.addMovementAnimation(group)
# self.picManager.instantMove()
# self.picManager.addRemovalAnimation(group)
self.picManager.instantRemove()
group.finished.connect(self.animFinished)
self.stepCount += 1
return group
def animFinished(self):
# print ("AnimFinished")
self.animTimeout.stop()
self.picManager.completeChange()
# Remove items from scene
if not self.animationRunning:
return
# print("Restarting timer")
self.picChgTimer = QTimer()
self.picChgTimer.setInterval(self.picChangeMs)
self.picChgTimer.setSingleShot(True)
self.picChgTimer.timeout.connect(self.stepAnimation)
self.picChgTimer.start()
def stepAnimation(self):
self.animationGroups[self.curAnimationGroup] = self.setNextTransition()
self.animationGroups[self.curAnimationGroup].start()
self.curAnimationGroup = 1 if self.curAnimationGroup == 0 else 0
# print ("AnimStarting")
self.animTimeout.setInterval(self.animationTimeoutMs)
self.animTimeout.setSingleShot(True)
self.animTimeout.timeout.connect(self.animationTimedOut)
self.animTimeout.start()
def animationTimedOut(self):
try:
self.ttt = self.ttt + 1
except:
self.ttt = 0
print("Animation TimedOut", self.ttt)
self.animTimeout.stop()
self.animFinished()
class AnimatedPhotos(QGraphicsView):
def __init__(self, photoBaseDir, validPhotoFileExts, maxCols, maxRows, borders, xBetweenPics, yBetweenPics, animationSpeed, picChangeMs, parent=None):
QGraphicsView.__init__(self, parent)
# Vars
self.maxCols = maxCols
self.maxRows = maxRows
self.borders = borders
self.xBetweenPics = xBetweenPics
self.yBetweenPics = yBetweenPics
self.animationSpeed = animationSpeed
self.animationTimeoutMs = 15000
self.picChangeMs = picChangeMs
# Border
self.setLineWidth(0)
self.setFrameShape(QtWidgets.QFrame.NoFrame)
# Size
sizePolicy = QSizePolicy(QSizePolicy.Preferred, QSizePolicy.Preferred)
self.setSizePolicy(sizePolicy)
# Appearance
self.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
self.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
# Widget
self.scene = QGraphicsScene()
self.setScene(self.scene)
self.setBackgroundBrush(QColor("light green"))
# Calc layout
self.calcCellSize()
self.animTimeout = QTimer()
self.picManager = PicManager(self.scene, photoBaseDir, validPhotoFileExts, maxCols, maxRows, QSize(self.xCellSize, self.yCellSize), borders, xBetweenPics, yBetweenPics)
# Class vars
self.animationRunning = False
self.curAnimationGroup = 0
self.animationGroups = [None] * 2
self.picChgTimer = None
self.stepCount = 0
def sizeHint(self):
return QSize(600, 400)
def resizeEvent(self, evt=None):
self.calcCellSize()
self.picManager.resize(QSize(self.xCellSize, self.yCellSize))
def calcCellSize(self):
xWindowSize = self.width()
yWindowSize = self.height()
self.xCellSize = ((xWindowSize - self.borders[3] - self.borders[1] - self.xBetweenPics*(self.maxCols-1)) / self.maxCols)
self.yCellSize = ((yWindowSize - self.borders[0] - self.borders[2] - self.yBetweenPics*(self.maxRows-1)) / self.maxRows)
def start(self):
self.animationRunning = True
QTimer.singleShot(self.picChangeMs, self.stepAnimation)
def stop (self):
self.picManager.stop()
self.animationRunning = False
if self.picChgTimer != None:
self.picChgTimer.stop()
print("Photo update timer stopped")
def setNextTransition(self):
# print ("Anim Step ..........", self.stepCount)
self.picManager.setupChange()
self.picManager.addNewPhotosToScene()
group = QParallelAnimationGroup()
self.picManager.addInsertionAnimation(group)
# self.picManager.instantInsert()
self.picManager.addMovementAnimation(group)
# self.picManager.instantMove()
# self.picManager.addRemovalAnimation(group)
self.picManager.instantRemove()
group.finished.connect(self.animFinished)
self.stepCount += 1
return group
def animFinished(self):
# print ("AnimFinished")
self.animTimeout.stop()
self.picManager.completeChange()
# Remove items from scene
if not self.animationRunning:
return
# print("Restarting timer")
self.picChgTimer = QTimer()
self.picChgTimer.setInterval(self.picChangeMs)
self.picChgTimer.setSingleShot(True)
self.picChgTimer.timeout.connect(self.stepAnimation)
self.picChgTimer.start()
def stepAnimation(self):
self.animationGroups[self.curAnimationGroup] = self.setNextTransition()
self.animationGroups[self.curAnimationGroup].start()
self.curAnimationGroup = 1 if self.curAnimationGroup == 0 else 0
# print ("AnimStarting")
self.animTimeout.setInterval(self.animationTimeoutMs)
self.animTimeout.setSingleShot(True)
self.animTimeout.timeout.connect(self.animationTimedOut)
self.animTimeout.start()
def animationTimedOut(self):
try:
self.ttt = self.ttt + 1
except:
self.ttt = 0
print("Animation TimedOut", self.ttt)
self.animTimeout.stop()
self.animFinished()