Re: [PyQt] pyuic4 vs uic.loadUI
Hmm interesting topic, I recently had to switch back from ui files to py files because I couldnt get py2exe to package the ui files correctly (Any help appreciated though) I usually use both of them to deal with this problem. My python code which depends on ui files (ie. class which heritate from widgets made in designer) tries to load ui file using uic.loadUI, and if it fails, it tries to load the class from the module made by pyuic4. This allows me to use .ui files directly during development process. Then when I must release the code, the setup.py generates the python modules from ui file (using pyuic4), and these modules are packaged by distutils (which is used for py2exe or to build debian packages). This king of stuff is used for example in hgview (http://www.logilab.org/project/hgview) David signature.asc Description: This is a digitally signed message part. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] event filters vs subclassing
On Tue, Aug 3, 2010 at 2:27 PM, Dan Halbert halb...@halwitz.org wrote: [...] The best solution would be if PyQt could be extended with a new installEventFilter method which also takes an optional list with event classes you are only interested in. I strongly agree. I would be very helpful to have such python-specific extensions to Qt (thus not sticking to Qt bare API, which is something is already done with new style signal, IMO). This extension being IMHO one of the most necessary. An other one would be to have the possibility to filter the QAbstractItemModel.data method, since the general case is to only be interested in implementing it for Qt.DisplayRole. Regards, David signature.asc Description: This is a digitally signed message part. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Examples of Big PyQt application with sources
Le Thursday 14 January 2010 03:23:00 AON LAZIO, vous avez écrit : Hi, You guys know the sources where we can get source codes for some big pyqt applications? I mean the applications that are actually deployed for real use Thanks For a not so big (but really used) application, you may have a look at hgview http://www.logilab.org/project/hgview -- David DouardLOGILAB, Paris (France), +33 1 45 32 03 12 Formations Python, Zope, Debian : http://www.logilab.fr/formations Développement logiciel sur mesure : http://www.logilab.fr/services Informatique scientifique : http://www.logilab.fr/science ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Two questions about PyQt
Le Wednesday 25 November 2009 07:19:48 tiob lew, vous avez écrit :
I am a newbie to Python and have two questions using python to design UI
based PyQT4.6.
The source code is
===
#!/usr/bin/python
#MyUI.py
import sys
import random
from PyQt4 import QtCore, QtGui
class MyUI(QtGui.QWidget):
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
self.setWindowTitle('My UI')
cb1 = QtGui.QCheckBox('MyCheckBox1', self)
cb2 = QtGui.QCheckBox('MyCheckBox2', self)
bg = QtGui.QButtonGroup(parent)
bg.setExclusive(1)
bg.addButton(cb1)
bg.addButton(cb2)
hbox = QtGui.QHBoxLayout()
hbox.addStretch(1)
hbox.addWidget(cb1)
hbox.addWidget(cb2)
self.setLayout(hbox)
self.resize(900, 600)
lb1 = QtGui.QLabel('Name')
lb2 = QtGui.QLabel('Age')
lb3 = QtGui.QLabel('Address')
tf1 = QtGui.QLineEdit()
tf2 = QtGui.QLineEdit()
tf3 = QtGui.QLineEdit()
hbox.addWidget(lb1)
hbox.addWidget(tf1)
hbox.addWidget(lb2)
hbox.addWidget(tf2)
hbox.addWidget(lb3)
hbox.addWidget(tf3)
tf1.setText('Jone')
tf2.setText('28')
tf3.setText('London')
update = QtGui.QPushButton('update')
hbox.addWidget(update)
self.connect(update, QtCore.SIGNAL('clicked()'),
self, QtCore.SLOT('update_info(self)'))
def update_info(self):
tf1.setText('Alice')
tf2.setText('18')
tf3.setText('New York')
app = QtGui.QApplication(sys.argv)
ui = MyUI()
ui.show()
sys.exit(app.exec_())
I want to implement two functions in this piece of code.
1) implement the exclusive checkbox in a group of checkboxes. In another
word, only one of CheckBox1 and Checkbox2 could be checked at any time.
Use QRadioButton widgets for this.
2) After clicking update button, the information should be updated as
Name Alice
Age - 18
Address--- New York
Simply keep references to your QLineEdit widgets as attributes of your class,
eg. by replacing everywhere tf1 by self.tf1 (and so forth).
And replace
self.connect(update, QtCore.SIGNAL('clicked()'),
self, QtCore.SLOT('update_info(self)'))
by
self.connect(update, QtCore.SIGNAL('clicked()'),
self.update_info)
How should the code be modified to implement this two functionalities?
Basically, you really should read a bit of Python, Qt and PyQt documentation
or at least follow tutorials.
Many thanks.
_
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Développement logiciel sur mesure : http://www.logilab.fr/services
Informatique scientifique : http://www.logilab.fr/science
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Re: [PyQt] Problem with class inheriting QDialog
Looks like you are not calling QMainWindow base constructor. Le Friday 20 November 2009 17:44:30 dizou, vous avez écrit : Dialog.py: import sys from PyQt4.QtGui import QDialog def Dialog(QDialog): def __init__(self, parent): QDialog.__init__(self, parent) MainWindow.py: from PyQt4.QtCore import SIGNAL, SLOT, QDir, QFile from PyQt4.QtGui import QApplication, QMainWindow, QMenu, QMessageBox, \ QWidget, qApp, QAction, QFileDialog, QPushButton from Dialog import * class MainWindow(QMainWindow): def __init__(self): QMainWindow.__init__(self) #stuff self.editButton = QPushButton(self) self.connect(self.editButton, SIGNAL(clicked()), self.EditButtonClicked) def EditButtonClicked(self): self.dialog = Dialog(self) print type(self.dialog) self.dialog.exec_() -- David DouardLOGILAB, Paris (France), +33 1 45 32 03 12 Formations Python, Zope, Debian : http://www.logilab.fr/formations Développement logiciel sur mesure : http://www.logilab.fr/services Informatique scientifique : http://www.logilab.fr/science ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] [ANN] hgview 1.1.0
I am pleased to announce you to the latest release of `hgview 1.1.0`_. What is it? --- For the ones from the back of the classroom near the radiator, let me remind you that hgview_ is a very helpful tool for daily work using the excellent DVCS Mercurial_ (which we heavily use at Logilab_, thanks Matt and others!). It allows to easily and visually navigate your hg repository revision graphlog. It is written in Python_ and pyqt_. What's new -- - user can now configure colors used in the diff area (and they now default to white on black) - indicate current working directory position by a square node in the graph - add many other configuration options (listed when typing `hg help hgview`) - removed 'hg hgview-options' command in favor of 'hg help hgview' - add ability to choose which parent to diff with for merge nodes - dramatically improved UI behaviour (shortcuts, history of navigation, goto next/prev diff (in some views), etc.) - improved help and make it accessible from the GUI - make it possible not to display the diffstat column of the file list (which can dramatically improve performances on big repositories) - standalone application: improved command line options - add auto-reload feature (when the repo is modified due to a pull, a commit, etc., hgview detects it, reloads the repo and updates the graph) - fix *many* bugs, especially the file log navigator should now display the whole graph - (maybe) improved performances a bit Download and installation - The source code is available as a tarball_, or using our `public hg repository`_ of course. To use it from the sources, you just have to add a line in your ``.hgrc`` file, in the `[extensions]` section: hgext.hgview=/path/to/hgview/hgext/hgview.py Debian_ and Ubuntu_ users can also easily install hgview (and Logilab other free software tools) using our `deb package repositories`_. .. _`hgview 1.1.0`: http://www.logilab.org/project/hgview/1.1.0 .. _hgview: http://www.logilab.org/project/hgview .. _Mercurial: http://www.selenic.com/mercurial .. _`deb package repositories`: http://www.logilab.org/card/LogilabDebianRepository .. _`public hg repository`: http://www.logilab.org/cgi-bin/hgwebdir.cgi/ .. _Debian: http://www.debian.org .. _Ubuntu: http://www.ubuntu.com .. _tarball: http://ftp.logilab.org/pub/hgview/hgview-1.0.0.tar.gz .. _qt4: http://www.qtsoftware.com/products/ .. _pyqt: http://www.riverbankcomputing.co.uk/software/pyqt/intro .. _Python: http://www.python.org .. _Logilab: http://www.logilab.fr -- David DouardLOGILAB, Paris (France), +33 1 45 32 03 12 Formations Python, Zope, Debian : http://www.logilab.fr/formations Développement logiciel sur mesure : http://www.logilab.fr/services Informatique scientifique : http://www.logilab.fr/science ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] ANN hgview 1.0.0 released
On Tuesday 09 June 2009 01:29:17 David Boddie wrote: On Sat Jun 6 12:58:35 BST 2009, David Douard wrote: Let me introduce you the latest kid of the Logilab team: `hgview 1.0.0`_. hgview is a very helpful tool for daily work using the excellent DVCS Mercurial (which we heavily use at Logilab). It looks good! I was looking for a tool like this a while ago, so I must admit that I've already tried it, but this release gave me an excuse to try out the package from one of your deb package repositories. :-) Thanks, Have you tried it against really large repositories, especially those converted from git? I've tried it with repos with a few 1's of revisions, but not against the linux kernel for example. I plan to play with this when I find time for it. David ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- David DouardLOGILAB, Paris (France), +33 1 45 32 03 12 Formations Python, Numpy, Debian : http://www.logilab.fr/formations Développement logiciel sur mesure : http://www.logilab.fr/services Informatique scientifique : http://www.logilab.fr/science signature.asc Description: This is a digitally signed message part. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] ANN hgview 1.0.0 released
Let me introduce you the latest kid of the Logilab team: `hgview 1.0.0`_. hgview is a very helpful tool for daily work using the excellent DVCS Mercurial (which we heavily use at Logilab). It allows to easily and visually navigate in your hg repository revision graphlog. It is written in Python and pyqt (which the reason why I am sending this message on this list). A more detailed annoucement is available on http://www.logilab.org/blogentry/9297 Source code, bugtracker, etc. are on http://www.logilab.org/project/hgview I hope you'll like it. -- David DouardLOGILAB, Paris (France), +33 1 45 32 03 12 Formations Python, Numpy, Debian : http://www.logilab.fr/formations Développement logiciel sur mesure : http://www.logilab.fr/services Informatique scientifique : http://www.logilab.fr/science ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Fast way to display an array in a table?
Le jeudi 28 mai 2009 20:57:50 Vicente Sole, vous avez écrit : Hello, I am writing a generic data handling application in which I need to be able to show the contents of a numpy array in a sort of table/spreadsheet. The array can be big (1024 x 1024 floats or may be even more). Is there a faster way of filling a table than looping through all the array elements and introducing them in the table cells one by one? You should use a QTableView with a model you write (which should derivate from QAbstractTableModel) like the file attached. -- David DouardLOGILAB, Paris (France), +33 1 45 32 03 12 Formations Python, Numpy, Debian : http://www.logilab.fr/formations Développement logiciel sur mesure : http://www.logilab.fr/services Informatique scientifique : http://www.logilab.fr/science import numpy from PyQt4 import QtCore, QtGui Qt = QtCore.Qt class NumpyModel(QtCore.QAbstractTableModel): def __init__(self, narray, parent=None): QtCore.QAbstractTableModel.__init__(self, parent) self._array = narray def rowCount(self, parent=None): return self._array.shape[0] def columnCount(self, parent=None): return self._array.shape[1] def data(self, index, role=Qt.DisplayRole): if index.isValid(): if role == Qt.DisplayRole: row = index.row() col = index.column() return QtCore.QVariant(%.5f%self._array[row, col]) return QtCore.QVariant() if __name__ == __main__: a = QtGui.QApplication([]) w = QtGui.QTableView() d = numpy.random.normal(0,1, (1000,1000)) m = NumpyModel(d) w.setModel(m) w.show() a.exec_() ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] faster alternative to QHeaderView's resizeToContents?
On Saturday 09 May 2009 09:28:16 Edwin Marshall wrote: I have a QTableView that displays the contents of a model with over 3000 rows, each with 11 columns. I'd like to the original size of these columns to be no larger than the content within them, but setting their resizeMode's to QHeaderView.resizeToContents causes the tremendous slow downs (where originally the data would load in two seconds, using this mode causes the data to be loaded after about a minute and a half). Is there some faster alternative? I'm thinking of calculating the width by using the length of the largest item in the column, but that would require me to know how large in pixels each character is. Any suggestions? This can be done reimplementing the sizeHintForColumn method of a QTableView. You should create your own QTableView based class and reimplement this method the smart way. See Qt doc for more details on this method. -- David DouardLOGILAB, Paris (France), +33 1 45 32 03 12 Formations Python, Numpy, Debian : http://www.logilab.fr/formations Développement logiciel sur mesure : http://www.logilab.fr/services Informatique scientifique : http://www.logilab.fr/science ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] How to clear QDateTime
Le Saturday 31 January 2009 19:15:23 Marc Nations, vous avez écrit : Hi, I can't seem to clear out the QDateTime field in cases where I don't want the date displayed. Using clear() seems to wipe out the first entry (in this case the hour). I tried hitting multiple clears thinking that it may just work down the list, but that didn't work. Is there a way to blank out the field completely? I know it can be disbled, but I'd like to have it be blank until the user goes and selects the pop-up calendar. Thanks, Marc This is a gap in Qt, and it won't happen before a while. See http://www.qtsoftware.com/developer/task-tracker/index_html?method=entryid=135683 David -- David DouardLOGILAB, Paris (France), +33 1 45 32 03 12 Formations Python, Zope, Debian : http://www.logilab.fr/formations Développement logiciel sur mesure : http://www.logilab.fr/services Informatique scientifique : http://www.logilab.fr/science signature.asc Description: This is a digitally signed message part. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Splash Screen
Le Friday 03 October 2008 12:04:49 [EMAIL PROTECTED], vous avez
écrit :
!DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN
html
head
meta http-equiv=Content-Type content=text/html; charset=iso-8859-1
titleFlashmail/title
style type=text/css
BODY, TABLE, TR, TD, P {margin:0;padding:0;}
BODY {background:#FF;}
/style
/head
body
PHello,/P
PI would to know how to do a Splash Screen with PyQT./P/body/html
First, please use plain text format when sending messages to this
mailing-list.
Now, for your problem, here is an example:
# make proper imports
app = QApplication([])
pixmap = QPixmap(:/images/splashscreen.png)
splash = QSplashScreen(pixmap, Qt.WindowStaysOnTopHint)
splash.setMask(pixmap.mask()) # this is usefull if the splashscreen is
not a regular ractangle...
splash.show()
splash.showMessage(_(u'Starting...'), Qt.AlignRight | Qt.AlignBottom,
Qt.yellow)
# make sure Qt really display the splash screen
app.processEvents()
# start tha main app window
mainwindow = ...
# ...
# now kill the splashscreen
splash.finish(mainwindow)
--
David DouardLOGILAB, Paris (France), +33 1 45 32 03 12
Formations Python, Zope, Debian : http://www.logilab.fr/formations
Développement logiciel sur mesure : http://www.logilab.fr/services
Informatique scientifique : http://www.logilab.fr/science
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Re: [PyQt] QTableWidget Data Paste Time
On Wed, Jul 30, 2008 at 02:22:38PM -0700, Glenn Linderman wrote: On approximately 7/30/2008 2:10 PM, came the following characters from the keyboard of B Clowers: Greetings, I'm interested in incorporating a QTableWidget into one of my applications and would like to give it the functionality to cut, copy, and paste a user selection. So far I've implemented the copy and paste actions to a functional level. However, I often deal with very large arrays (e.g. 25) rows, as such when pasting an array of that size it seems to take on the order of 8-10 seconds to actually set the data in the table. I've attached a small example script that has the copy and paste functionality and was hoping some of the more experienced programmers out there could take a look and comment on whether it is possible to commit data to the QTableWidget in a more efficient manner. So far I've only been able to use the setItem() function iteratively. There doesn't seem to be a setItems() (i.e. setting a large list of items at one time). Thanks for your help. Brian -ps I didn't attach a text file with 25 rows as it is about 1MB compressed, though if anyone is interested let me know and I'll send it on. So, I'm a PyQt newbie, so I can't help, but I can add that I've also noticed that originally populating a large QTableWidget takes a long time. The solution for this is to use a QTableView and a QTableModel. See Qt documentation on http://doc.trolltech.com/4.4/model-view-introduction.html and examples in PyQt (eg. in examples/itemviews ). So if someone can offer help, it would help us both! -- Glenn -- http://nevcal.com/ === A protocol is complete when there is nothing left to remove. -- Stuart Cheshire, Apple Computer, regarding Zero Configuration Networking ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- David DouardLOGILAB, Paris (France), +33 1 45 32 03 12 Formations Python, Zope, Debian : http://www.logilab.fr/formations Développement logiciel sur mesure : http://www.logilab.fr/services Informatique scientifique : http://www.logilab.fr/science signature.asc Description: Digital signature ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] QtGui.QMotifStyle not in PyQt?
On Wed, Feb 13, 2008 at 01:53:20PM +0100, Ulrich Berning wrote: Igor Prischepoff wrote: Hello,all! I'm looking in styling my pyqt application. There is nice python styles example ported from C++. But it's not complete port because NorwegianWood style is missing. In original C++ demo this example shows one more custom style build by user. So I'm digging deeper and find that QMotifStyle on which this NorwegianWood style is build is'n ported to python part. Is it done intentionally or it's just technologically hard to do? Or it's licensing issues? I'd like to build my own style for application. And second question: anyone of you guys use custom themes like NorwegianWood for example? Do you build your own or just use embedded in Qt? (plastic, cde, etc..) Why don't you use style sheets? With Qt4, most of the visual effects can be customized with style sheets. There is no longer a need to create new styles. Well, beware that if you write an app with generated layouts, using stylesheet dramatically increase widget creation time, thus an make your application not very reactive. David Ulli ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- David DouardLOGILAB, Paris (France), +33 1 45 32 03 12 Formations Python, Zope, Debian : http://www.logilab.fr/formations Développement logiciel sur mesure : http://www.logilab.fr/services Informatique scientifique : http://www.logilab.fr/science signature.asc Description: Digital signature ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] signal-slot connect problem
On Tue, Jan 08, 2008 at 05:26:53PM +, Phil Thompson wrote: On Tuesday 08 January 2008, Martin Höfling wrote: Hi all, I am trying to create a filter Toolbar bar class, filtering a model. why does the following connect command in the loadModel Method not work?: class FilterToolBar(QToolBar): def __init__(self): super(FilterToolBar,self).__init__(QString(Filter)) self.expFilterCombo=QComboBox() self.projFilterCombo=QComboBox() self.expFilterCombo.setVisible(True) self.projFilterCombo.setVisible(True) self.addWidget(self.expFilterCombo) self.addWidget(self.projFilterCombo) self.expFilterCombo.setEditable(True) self.projFilterCombo.setEditable(True) def loadModel(self, proxymdl1, proxymdl2, model): self.proxymdlexp=proxymdl1 self.proxymdlproj=proxymdl2 self.expFilterCombo.clear() self.projFilterCombo.clear() self.expFilterCombo.clearEditText() self.projFilterCombo.clearEditText() exps=model.experiments.keys() projs=model.projects.keys() addToComboBox(exps, self.expFilterCombo) addToComboBox(projs, self.projFilterCombo) #problem section start self.connect(self.expFilterCombo, SIGNAL(editTextChanged()), self.expFilterChanged) self.connect(self.projFilterCombo, SIGNAL(editTextChanged()), self.projFilterChanged) #problem section stop def expFilterChanged(self): print Filter Exp update self.proxymdlexp.setFilterFixedString(self.expFilterCombo.itemText()) self.proxymdlexp.setFilterKeyColumn(EXPERIMENT) def projFilterChanged(self): print Filter Proj update self.proxymdlproj.setFilterFixedString(self.projFilterCombo.itemText()) self.proxymdlproj.setFilterKeyColumn(PROJECT) The filter toolbar is created on startup and the loadModel Method is called when a new model has been loaded. Nothing happens if i change the text. Because there is no signal with that signature - you've missed out the argument type. This makes me think: would'nt be possible to display a warning message (or to add a flag somewhere which would activate this feature) when pyqt detects a wrong signature in SIGNAL ? I know this would break (so the idea of the flag) the easy way of SIGNAL/SLOT in pure python (as a -- positive in my mind -- side effect, people would be more incitated to use the pyQtSignature in python code). I mean it is a very common mistake, even for advanced PyQt developers, and it is not always easy to track. It could at least save sometimes one hour or two to many PyQt developpers, I guess ;-) Phil ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- David DouardLOGILAB, Paris (France), +33 1 45 32 03 12 Formations Python, Zope, Debian : http://www.logilab.fr/formations Développement logiciel sur mesure : http://www.logilab.fr/services Informatique scientifique : http://www.logilab.fr/science signature.asc Description: Digital signature ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
