Animated Gif Widget triggered during mouse Hover Over

[Antonio Govela]

Hi, I'm still trying to wrap my head around events and trying to start an animated gif 'splashed' on a widget.

I can manage to detect when the mouse hovers in and out to display a start and stop  but I can't seem to find how to trigger the movie.start() action.

I mashed up bits of code form other sites to display a window with an animated gif.

Any clues would be helpful...

here's the code (any animated gif should work)

from PySide import QtGui, QtCore

import PySide.QtCore as qc

import PySide.QtGui  as qg

from PySide.QtCore import Signal,Slot

import sys, time

from PySide.QtCore import Qt, QTimer

from PySide.QtGui import *

import sys

from PySide.QtCore import *

from PySide.QtGui import *

class Window(QtGui.QWidget):

class MovieSplashScreen(QSplashScreen):

def __init__(self, movie, parent = None):

movie.jumpToFrame(0)

pixmap = QPixmap(movie.frameRect().size())

QSplashScreen.__init__(self, pixmap)

self.movie = movie

self.movie.frameChanged.connect(self.repaint)

def showEvent(self, event):

self.movie.start()

def hideEvent(self, event):

self.movie.stop()

def paintEvent(self, event):

painter = QPainter(self)

pixmap = self.movie.currentPixmap()

self.setMask(pixmap.mask())

painter.drawPixmap(0, 0, pixmap)

def sizeHint(self):

return self.movie.scaledSize()

class animWidget(QtGui.QWidget):

mStart = Signal()

mStop = Signal()

zeros = 0

def __init__(self,parent=None):

QtGui.QWidget.__init__(self)

self._last_index = QtCore.QPersistentModelIndex()

self.installEventFilter(self)

def eventFilter(self, widget, event):

if event.type() == QtCore.QEvent.MouseMove:

print "Starting..."

self.mStart.emit()

self.startMovie()

self.emit(SIGNAL("mStart"))

 

elif event.type() == QtCore.QEvent.Leave:

print "Pausing"

self.mStop.emit()

return QtGui.QTableWidget.eventFilter(self, widget, event)

def startMovie(self,*args):

print "xxx"

#self.start()

def __init__(self, rows, columns):

QtGui.QWidget.__init__(self)

self.anim = self.animWidget(self)

self.anim.setMouseTracking(True)

self.animLayout = QtGui.QHBoxLayout()

self.anim.setLayout (self.animLayout)

layout = QtGui.QVBoxLayout(self)

movie = qg.QMovie("d:/cutebunny.gif")

self.movie = movie

splash = MovieSplashScreen(movie)

self.animGif = qg.QLabel(self)

self.animGif.setMovie(movie)

#self.movie.start()

self.animLayout.addWidget(self.animGif)

layout.addWidget(self.anim)

#self.movie.connect(SIGNAL("START"), self.startMovie)

#self.movie.connect(SIGNAL("mSTART"), self.startMovie)

        

        

  

     

        

        

        

if __name__ == '__main__':

    import sys

    #app = QtGui.QApplication(sys.argv)

    window = Window(6, 3)

    window.setGeometry(500, 300, 350, 250)

    window.show()

    

    

    #sys.exit(app.exec_())

[Antonio Govela]

I cleaned up the code a bit...I just realized since I hadn't restarted maya for a while, the code was not working because I moved a class around.

Still stuck though.

Thanks!

code:

from PySide import QtGui

from PySide import QtCore

import PySide.QtCore as qc

import PySide.QtGui  as qg

from PySide.QtCore import *

from PySide.QtGui import *

class MovieSplashScreen(QSplashScreen):

def __init__(self, movie, parent = None):

movie.jumpToFrame(0)

pixmap = QPixmap(movie.frameRect().size())

QSplashScreen.__init__(self, pixmap)

self.movie = movie

self.movie.frameChanged.connect(self.repaint)

def showEvent(self, event):

self.movie.start()

def hideEvent(self, event):

self.movie.stop()

def paintEvent(self, event):

painter = QPainter(self)

pixmap = self.movie.currentPixmap()

self.setMask(pixmap.mask())

painter.drawPixmap(0, 0, pixmap)

def sizeHint(self):

return self.movie.scaledSize()

class Window(QtGui.QWidget):

class animWidget(QtGui.QWidget):

mStart = Signal()

mStop = Signal()

START = Signal ()

zeros = 0

def __init__(self,parent=None):

QtGui.QWidget.__init__(self)

self._last_index = QtCore.QPersistentModelIndex()

self.installEventFilter(self)

def eventFilter(self, widget, event):

if event.type() == QtCore.QEvent.MouseMove:

print "Starting..."

#self.mStart.emit()

#self.startMovie()

self.START.emit()

self.emit(SIGNAL("mStart"))

self.emit(SIGNAL("START"))

elif event.type() == QtCore.QEvent.Leave:

print "Pausing"

self.mStop.emit()

return QtGui.QTableWidget.eventFilter(self, widget, event)

def startMovie(self,*args):

print "zzz"

#self.start()

def __init__(self, rows, columns):

QtGui.QWidget.__init__(self)

self.anim = self.animWidget(self)

self.anim.setMouseTracking(True)

self.animLayout = QtGui.QHBoxLayout()

self.anim.setLayout (self.animLayout)

layout = QtGui.QVBoxLayout(self)

movie = qg.QMovie("d:/cutebunny.gif")

self.movie = movie

splash = MovieSplashScreen(movie)

self.animGif = qg.QLabel(self)

self.animGif.setMovie(movie)

#self.movie.start()

self.animLayout.addWidget(self.animGif)

layout.addWidget(self.anim)

#self.anim.connect(SIGNAL("START"), self.startMovieX)

#self.anim.connect(SIGNAL("mSTART"), self.startMovieX)

def startMovieX(self,*args):

print "xxx"

#self.movie.start()

if __name__ == '__main__':

    import sys

    #app = QtGui.QApplication(sys.argv)

    window = Window(6, 3)

    window.setGeometry(500, 300, 350, 250)

    window.show()

    

    

    #sys.exit(app.exec_())

[Justin Israel]

Can you please just use a pastebin? This code is hard to read. I'm also having trouble following some of the usages in here... such as the persistent model index, and calling to the QTableWidget eventFilter, randomly.

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[Antonio Govela]

Sorry.. it was late and was getting kinda lost. So I managed to clean the code and actually trigger an animated gif widget using events. <ultiple widgets can be added with classes and respond independently to the 'hover over and leave' mouse tracking.

 

Here's the code: http://pastebin.com/C43HwDgi fully functional...

My question would then be: is using the event filter better than trying to use signals or vice versa, and how can this be done using signals to trigger events like start, stop and reset.

Thanks!

Antonio

 

[Kurian O.S]

http://pyqt.sourceforge.net/Docs/PyQt4/qmovie.html#started did you check the default signals from QMovie ?

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[Justin Israel]

Thanks for doing the pastebin. Much better.

Wouldn't the event trigger at each pixel move, and call start? Also, you don't need to install an event filter if you are installing it on itself. It would be the same as just reimplementing event() on that class. 

To view this discussion on the web visit https://groups.google.com/d/msgid/python_inside_maya/CANEMyhOszTu4eHEH-WxAT_qT7KvyG8tT7S0tuaEVNq5_izhX-w%40mail.gmail.com.

[Antonio Govela]

The MouseMove event seems to  trigger the movie.start only once. so even if the event keeps triggering with a slight mouse move (which it does) the gif plays through and loops, which is the functionality I was looking for. 

I'm looking into your suggestion about reimplementing event() on the class....

Thanks!

[pdw...@gmail.com]

Thanks for posting this - I used it and it works perfectly for my needs.