Unless you specifically change settings on SIP, a QString is returned for all
Qt methods that return a "string" results. You have to convert it to a python
string if you want to treat it as such:
self.scnFilePath.setText(os.path.normpath(str(fname)))
On Dec 8, 2012, at 9:01 AM, šãñ wrote:
> I have two browse button in the GUI as uprobably say in last image atachment
>
> so instead of creating two different slot for each button click i implemented
> it this way !!
> # assign slots to buttons
> scnFile=partial(self.showFileDialog,"scnFile")
> self.browseBtn.clicked.connect(scnFile)
> rndPath=partial(self.showFileDialog,"rdPath")
> self.rdBtn.clicked.connect(rndPath)
>
>
> and the showFileDialog() method as as under:
> def showFileDialog(self,*args):
> directory=os.path.expanduser('~')
> if args[0]=="scnFile":
> fname=QtGui.QFileDialog.getOpenFileName(self,'Open
> File',directory)
> if os.path.isfile(fname):
> self.scnFilePath.setText(fname)
> elif args[0]=="rdPath":
> selectedDir=QtGui.QFileDialog.getExistingDirectory(self,"Select
> Render Directory",directory)
> if selectedDir.isEmpty():
> print "No directory selected"
> else:
> self.renDir.setText(selectedDir)
>
> also if i try to do self.scnFilePath.setText(os.path.normpath(fname))
>
> i get error saying
> Traceback (most recent call last):
> File "RenderUI.py", line 203, in showFileDialog
> if os.path.isfile(os.path.normpath(fname)):
> File "D:\Python26\lib\ntpath.py", line 417, in normpath
> if path.startswith("\\"):
> AttributeError: 'QString' object has no attribute 'startswith'
>
>
>
>
> On Sat, Dec 8, 2012 at 4:12 AM, Justin Israel <[email protected]> wrote:
> 1) Just set your label to have a fixed with (setFixedWidth), or make your
> other widgets size policies "expanding" so they take up any new space.
> Probably the first one though.
>
> 2) If you want an asynchronous result from your filedialog, then instead of
> using my static getExistingDirectory() suggestion, just stick with creating
> the instance like you were. If you stay with calling the exec_() on the
> dialog, you are waiting for a response anyways so you can just set the value
> on to the text box. But for the async approach, you would show() instead of
> exec_() and maybe connect the accept() signal to a slot that will check the
> value and enter it into the textedit.
> For more specific help, I would need to see an example of what you are trying.
>
> 3) Why would so many people recommend not using list comprehension? Just flat
> out not to use it? They are a great way to get more performance than a normal
> for loop. I can see there are misuses of them though.
> For your specific example, you would usually not want to use a list
> comprehension for side effects. That is, you shouldn't use them to append or
> call some method in a loop. They are used to produce results that you intend
> to keep.
> There really isn't much you can do to change your example. Qt would have
> needed to provide an layout.addWidgets(aList) to accept a list of widgets.
> So you just need to call them in order like you are doing.
>
>
> On Fri, Dec 7, 2012 at 1:10 PM, šãñ <[email protected]> wrote:
>
> thank you guys for pointing a solution but Now I really have a bunch of more
> questions these are pretty basic that i know ...
>
> my first question is how do I keep the gridColumWidth fixed so that it should
> not change if the label text changes(see attached image)
>
> my second question is how can i use a showFileDialog slot fill QLineEdit for
> scne file for selecting directory and similarly in second tab ..(as you can
> see in the attached screenshot I have so many browse buttons)
> I remember seeing in the PyQt tutorial where you made use of partial but i
> guess that was for removeCallable from OM, but now how should i find
> QPushButton.objectName to be passed to slot so depending on what button is
> pressed i can perform some operation...
>
> thirdly , so many people have recommended me not to use List comprehension
> but i find it convenient(at least here) to use while addWidget or addLayout...
> like [p3_HBox2.addWidget(each) for each in
> [self.pylbl,self.pyEdt,self.pybrwBtn]]
>
> but I have a situation when I am using a combination of addWidget ,addStretch
> and addLayout
>
> like in this case
>
> p1_vertical.addLayout(gridLayout)
> p1_vertical.addLayout(gridLayout2)
> p1_vertical.addLayout(hbox)
> p1_vertical.addWidget(hLine)
> p1_vertical.addLayout(nxtbtnbox)
>
> in that case how should i after adding hbox in LC i can add addWidget(hLine)
> then again nxtbtnbox, i feel like i can use it with enumerate but is their
> any better option?
>
>
>
>
> On Sat, Dec 8, 2012 at 12:30 AM, Justin Israel <[email protected]> wrote:
> If you are using your own custom status bar in a widget, then you have to
> connect focus or hover events to something that sets the message on the
> status bar. You can set the setStatusTip("") on each widget and then just
> read that.
>
> When you use a QMainWindow, the status bar is already wired up for you so
> that any time you hover a widget, the statusBar will automatically read the
> widgets statusTip():
>
> app = QtGui.QApplication([])
>
> w = QtGui.QMainWindow()
> button = QtGui.QPushButton("clicky", w)
> button.setStatusTip("I am a clicky")
> w.setCentralWidget(button)
>
> status = w.statusBar()
>
> w.show()
> w.raise_()
>
> status.showMessage("Welcome to the app!", 5000)
>
> app.exec_()
>
> For the file dialog, the way you are using it, there is a convenience static
> method you can call:
> http://qt-project.org/doc/qt-4.8/qfiledialog.html#getExistingDirectory
>
> It will return an empty string if they cancel:
>
> directory=os.path.expanduser('~')
> selectedDir = QtGui.QFileDialog.getExistingDirectory(w,
> "Select Render Directory", directory)
>
> if selectedDir.isEmpty():
> print "No directory selected"
> else:
> print selectedDir
>
>
> On Fri, Dec 7, 2012 at 9:56 AM, Kurian O.S <[email protected]> wrote:
> For Directory you want to use exec so you need to change your code like this
>
> def showDirDialog(self):
> directory=os.path.expanduser('~')
> dirPath=QtGui.QFileDialog(self,"Select Render Directory",directory)
> dirPath.setFileMode(QtGui.QFileDialog.DirectoryOnly)
> if dirPath.exec_() == 1:
> fname_list = str(dirPath.selectedFiles()[0])
> print fname_list
>
> For changing the statusBar text you need to implement focusIn and out Event
> and Justin already mention about that in reimplement QPlainText’s
> focusInEvent in another source file ,how to ? thread.
>
>
> On Fri, Dec 7, 2012 at 6:25 AM, san <[email protected]> wrote:
> as a part of my learning PyQt4 I started making a gui(see attachment) where I
> implement all the examples I learn from video tuts or book I am referring,
>
> however I count figure out how should I implement the method to show text
> message on the status bar when user hover mouse over a widget[link to
> pastebin ]
>
> and secondly I dont understand how come this method to select Directory is
> not working?
>
> def showDirDialog(self):
> directory=os.path.expanduser('~')
> dirPath=QtGui.QFileDialog(self,"Select Render Directory",directory)
> dirPath.setFileMode(QtGui.QFileDialog.DirectoryOnly)
>
>
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