PyQt4's QPixmap not showing on Maya 2013

[Salvador Olmos Miralles]

So I've made a window for Maya in QtDesigner, and I've tried assigning a label a pixmap from QtDesigner, from the python script that references de ui file, and still I can't get the pixmap to work. I've also change a thousand times the .jpg path and none of them work. I paste my Python script:

#----------------------------------------

from PyQt4 import QtGui, QtCore, uic
import platform, sys, random
import maya.cmds as cmds

os = platform.system()
if os == "Windows":
uiFile = 'path_to_ui'
else:
uiFile = 'path_to_ui'
form_class, base_class = uic.loadUiType(uiFile)

class textureReleaseUI(form_class, base_class):

def __init__(self, parent=mui.getMayaWindow()):
super(textureReleaseUI, self).__init__(parent)
self.setupUi( self )
self.initUI()
def initUI(self):
pixmap = QtGui.QPixmap("Y:\dev\python\mnmModelToolsHeader.jpg")
self.header.setPixmap(pixmap)
self.connectSignals()
def connectSignals(self):
self.connect(self.orient_btn, QtCore.SIGNAL('pressed()'), orientTip)
self.connect(self.clean_btn, QtCore.SIGNAL('pressed()'), main)
self.connect(self.rename_btn, QtCore.SIGNAL('pressed()'), checkNaming)
self.connect(self.none_btn, QtCore.SIGNAL('pressed()'), printLines)

def runUI():
#global app
global win
#app=QtGui.QApplication(sys.argv)
win = textureReleaseUI()
win.show()
#sys.exit(app.exec_())
runUI()

[Jesse Kretschmer]

I assume that self.header is a QLabel. The UI file would be quite helpful for reference.

You should flip the slashes or if you really want backslashes, use the raw string notation by putting an r before the quotes:
r"Y:\dev\python\mnmModelToolsHeader.jpg"

Also, make sure that the file is found by python:
myFile = "Y:/dev/python/mnmModelToolsHeader.jpg"
if os.path.exists(myFile):
    print "yay"

It may well be possible that Qt is having an issue with your jpeg, so try loading a different image or a different format.

Tell me if any of these suggestions put you in the right direction.

Cheers,

jesse

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[Salvador Olmos Miralles]

I tried what you said and the path was right, I ended up fixing it deleting the QLabel and creating it from scratch in the .py file, Here I post the working script file:

class textureReleaseUI(form_class, base_class):

def __init__(self, parent=mui.getMayaWindow()):
super(textureReleaseUI, self).__init__(parent)
self.setupUi( self )
self.initUI()
def initUI(self):

self.header = QtGui.QLabel(self.centralwidget)
self.header.setGeometry(QtCore.QRect(0,-5,500,81))
self.header.setPixmap(QtGui.QPixmap('\mnmModelToolsHeader.jpg'))
self.header.setObjectName('header')
self.setCentralWidget(self.centralwidget)

self.connectSignals()
def connectSignals(self):
self.connect(self.orient_btn, QtCore.SIGNAL('pressed()'), orientTip)
self.connect(self.clean_btn, QtCore.SIGNAL('pressed()'), main)
self.connect(self.rename_btn, QtCore.SIGNAL('pressed()'), checkNaming)
self.connect(self.none_btn, QtCore.SIGNAL('pressed()'), printLines)

Thank you very much for the help!
Salvador