Re: [PyQt] How to start an app in max size?
You're looking for QWidget::showMaximized(). Link to docs: http://developer.qt.nokia.com/doc/qt-4.8/qwidget.html#showMaximized. On Mon, Jan 16, 2012 at 11:43, Fabien Lafont lafont.fab...@gmail.comwrote: How can I run an app in fullscreen i.e in max size? I've tried showFullScreen() but it hides the windows bar. thx, Fab ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Delaying splash screen
The avoidable * imports Pete mentioned involve typing from PyQt4 import QtGui and then do: class Foo(QtGui.QLabel) or from PyQt4.QtGui import QLabel and then do: class Foo(QLabel) Using one of the above causes not all modules to be loaded, whereas your * imports actually does load all a lot of unrequired modules. On Thu, Sep 8, 2011 at 00:32, Muhammad Bashir Al-Noimi ad...@mbnoimi.netwrote: On 07/09/2011 11:27 م, Hans-Peter Jansen wrote: On Wednesday 07 September 2011, 14:04:02 ad...@mbnoimi.net wrote: Hi guys, I wrote a tiny class for delaying splash screen in C++ but when I tired to re-write it in python it didn't work! I got AttributeError TeSplashScreen object has no attribut QFrate although TeSplashScreen inherited from QFrame Could you please help me, I'm still a newbie in PyQt and Python. tesplashscreen.py from PyQt4.QtCore import * from PyQt4.QtGui import * Hmm, that * imports are easily avoided. Thanks a lot Pete, You mean I don't need to use both import lines? import sys class TeSplashScreen(QFrame): Splash doc app = QApplication(sys.argv) sPixmap = QPixmap(10, 10) sMessage = QString() messages = [nothing] sAlignment = 0 sColor = QColor() def __init__(self, pixmap): You need to call the base class c'tor here, e.g.: super(QFrame, self).__init__() Most of your code below has issues with missing self. references, which will result in access to undefined variables and instances, that are prematurely garbarge collected. I did as you mentioned exactly. I got new issue because I don't know how can I use QStringList class, I read in some article that it's unavailable in PyQt so I tried to use python lists instead but I got an exception at for loop TypeError object of type int has no len() here's the modified class: from PyQt4.QtCore import * from PyQt4.QtGui import * import sys class TeSplashScreen(QFrame): Splash doc app = QApplication(sys.argv) sPixmap = QPixmap(10, 10) sMessage = QString() #messages = [nothing ] sAlignment = 0 sColor = QColor() def __init__(self, pixmap): super(QFrame, self).__init__() self.sPixmap = pixmap self.setWindowFlags(Qt.FramelessWindowHint|Qt.WindowStaysOnTopHint) self.setAttribute(Qt.WA_TranslucentBackground) self.setFixedSize(self.sPixmap.size()) def clearMessage(self): self.sMessage.clear() self.repaint() def showMessage(self, theMessage, theAlignment, theColor): self.sMessage = theMessage self.sAlignment = theAlignment self.sColor = theColor self.repaint() def paintEvent(self, pe): aTextRect = QRect(self.rect()) aTextRect.setRect(aTextRect.x()+5, aTextRect.y()+5, aTextRect.width()-10, aTextRect.height()-10) aPainter = QPainter(self) aPainter.drawPixmap(self.rect(), self.sPixmap) aPainter.setPen(self.sColor) aPainter.drawText(aTextRect, self.sAlignment, self.sMessage) def showSplash(self, delay, messages, alignment, color): delay = 0 #self.messages = messages alignment = 0 color = QColor(color) class SleeperThread(QThread): msecs = 0 QThread.msleep(msecs) aSplashScreen = TeSplashScreen(self.sPixmap) aSplashScreen.show for i in range(len(messages)): aSplashScreen.showMessage(messages[i], alignment, color) SleeperThread.msleep(delay) - Best Regards Muhammad Bashir Al-Noimi My Blog: http://mbnoimi.net ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Delaying splash screen
, const QColor color)
{
class SleeperThread : public QThread
{
public:
static void msleep(unsigned long msecs) {QThread::msleep(msecs);}
};
TeSplashScreen* aSplashScreen = new TeSplashScreen(sPixmap);
aSplashScreen-show();
for(int i=0; imessages.count();++i)
{
aSplashScreen-showMessage(messages[i], alignment, color);
if(idelaies.count())
SleeperThread::msleep(delaies[i]);
else
SleeperThread::msleep(defaultDelay);
}
delete aSplashScreen;
}
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Muhammad Bashir Al-Noimi
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Re: [PyQt] Text and Image Alignment
Try this method:
http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qtoolbutton.html#setToolButtonStyle
with one of these values:
http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qt.html#ToolButtonStyle-enum
.
E.g.:
yourButton = QtGui.QToolButton()
yourButton.setToolButtonStyle(QtCore.Qt.ToolButtonTextUnderIcon)
yourButton.setText(Some text)
yourButton.setIcon(QtGui.QIcon(./images/someImage.png))
yourButton.setIconSize(QtCore.QSize(140, 140))
yourButton.clicked.connect(self.onButtonClicked)
On Wed, Aug 17, 2011 at 03:39, uahmed gleam.uah...@gmail.com wrote:
Hi
Thank you for the reply i search for it
http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qtoolbutton.html
but unfortunately i didnt get any of such method .
On Wed, Aug 17, 2011 at 3:28 AM, Josh Stratton
strattonbra...@gmail.comwrote:
QToolbarButton has a value for putting text underneath, which may be
more what you want.
On Tue, Aug 16, 2011 at 3:20 PM, uahmed gleam.uah...@gmail.com wrote:
HI
I want to do alignment in image and text , i want that image should be
on
center top and text should be at the bottom of image . I search for it
but
didnt get the relevant search result . Can you please tell me how to do
that ?
Chunk of Code for Button Without Text:
button = QtGui.QPushButton(widget)
button.setIcon(QtGui.QIcon('default.gif'))
button.setIconSize(QtCore.QSize(100,100))
button.setGeometry(xval,yval, 130, 130)
button.connect(button, QtCore.SIGNAL('clicked()'),
partial(calluser, user_Handle))
Chunk of Code for Button With Text:
button = QtGui.QPushButton(widget)
button.setIcon(QtGui.QIcon('default.gif'))
button.setIconSize(QtCore.QSize(100,100))
button[text].setText(QtCore.QString(user_Handle))
button.setGeometry(xval,yval, 130, 130)
button.connect(button, QtCore.SIGNAL('clicked()'),
partial(calluser, user_Handle))
Thank You
Ahmed
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Re: [PyQt] Help with Login Dialog / QThread issues
I've quickly created this for you, hope it helps a bit. Note: it's not working 100%, since the main event loop isn't terminated after the dialog is closed. On Mon, Aug 8, 2011 at 16:58, Baz Walter baz...@ftml.net wrote: On 08/08/11 14:58, Eric Frederich wrote: I'm just a little confused on what connections to make. I'm sure I could get something working but I'd be going about it the wrong way. Forget my original post. This is what I want. I want a login dialog with username, password and group. I want that dialog to stay up until the login is successful or user hits cancel. I have a QThread subclass for logging in. It emits either success or fail, and with fail it provides some text feedback. When the login thread starts a progress bar should start animating. This is where I am completely lost as far as connections go. The QDialogButtonBox has accepted, rejected. The QDialog has accepted, rejected. My login thread has success, and fail. There are clicked() signals as well. Its not complicated, but I'm new to Qt and PyQt. I think I need someone to spell it out for me. okay. in designer, open up View - Signal/Slot Editor, remove the buttonBox.accepted() connection, and then re-compile. next, in your LoginDialog class, rename your accept method to, say, handleAccepted, and connect it to the accepted() signal of the buttonBox: self.buttonBox.accepted.**connect(self.handleAccepted) finally, in handleAccepted, replace the thread connection with: self.lt.finished.connect(self.**accept) (obviously, i haven't tested this at all, but hopefully it will give you the general idea). __**_ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.**com/mailman/listinfo/pyqthttp://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens LoginDialog.py Description: Binary data main.py Description: Binary data ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] widget swap/widget on top
I think you should take a look at window modality ( http://doc.qt.nokia.com/latest/qwidget.html#windowModality-prop). On Wed, Jul 27, 2011 at 07:46, ad3d alhaddeshpa...@gmail.com wrote: Hi guys, if i press a button on mainwindow i want another widget i.e. widget1 to popup, but that widget1 should be on top and the mainwindow should be disabled.. same should happen if i try to open a new widget i.e. widget2 by pressing a button on widget1 (widget 2 should be on top and other 2 widgets should be disabled) in this process i dont want to hide the disabled widgets/windows.. Can someone plz guide me to achieve the same.. Thanx in advance Regards, ad3d -- View this message in context: http://old.nabble.com/widget-swap-widget-on-top-tp32145442p32145442.html Sent from the PyQt mailing list archive at Nabble.com. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] How to convert days to year,month days
This can be easily achieved by doing the math yourself. Something like: months = (now.year() - joiningDate.year()) * 12 months += now.month() - joiningDate.month() Wkr, On Mon, Feb 14, 2011 at 18:46, alhad deshpande alhaddeshpa...@gmail.comwrote: i have a date of joining of an employee and i want to know till current date how many MONTHS he/she has worked in the company.. Can someone plz guide me how can i convert days to MONTHS for above requirement.. Thanx ad3d ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] 'module' object has no attribute 'StackedWidget'
Indeed, IIRC, StackedWidget had to be renamed to QStackedWidget.. Wkr, -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] problem in invoking event of QDateEdit embedded in QTableWidget cell
Something like: dt_d = new QTimeEdit() dt_d.timeChanged.connect(self.onTimeChanged) myTableWidget.setCellWidget(row, col, dt_d) ... def onTimeChanged(self, time): print time Btw, I assume you mean 'timeChangedhttp://doc.qt.nokia.com/4.7/qdatetimeedit.html#timeChanged' instead of 'dateChanged' when using a QTimeEdit :-)? On Fri, Jan 21, 2011 at 08:31, ad3d alhaddeshpa...@gmail.com wrote: i have added QTimeEdit in a QTableWidget cell using setCellWidget its name is dt_d Now i want to write a function on which will be triggered on dateChanged event but the problem i am facing is its not accepting dateChanged trigger as well as its not accepting itemChanged event of QTableWidget can some plz tell me how can i write a function which will be triggered when i change d date in QDateEdit which is embedded in a cell of a QTableWidget ITS A BIT URGENT PLZ HELP THANX IN ADVANCE -- View this message in context: http://old.nabble.com/problem-in-invoking-event-of-QDateEdit-embedded-in-QTableWidget-cell-tp30726350p30726350.html Sent from the PyQt mailing list archive at Nabble.com. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] QMainWindow bug?
- Win7 64bit - Python 2.6.6 (r266:84297, Aug 24 2010, 18:46:32) [MSC v.1500 32 bit (Intel)] on win32 - Qt v4.7.0 - PyQt GPL v4.8.1 for Python v2.6 Result: no crashes, works like a charm.. On Tue, Jan 18, 2011 at 20:32, Vicent Mas uve...@gmail.com wrote: Hi, it seems there is a bug in QMainWindow.createPopupMenu. In my system (Windows XP, Python 2.6, PyQt 4.8.2 installed using the Windows installer), when I run the attached script and close the created QMainWindow, an error dialog appears saying that python.exe has found a problem and must be closed. Could someone confirm this behavior? Thanks. Vicent -- Share what you know, learn what you don't. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Load font form file
On Windows, you have to place these font files in C:\Windows\Fonts after which they can automagically be used as a QFont :-). On Wed, Dec 15, 2010 at 04:29, Mikael Modin micke.mo...@gmail.com wrote: Hi, I've downloaded a new font that I want to use in my application, how do I get a QFont object to use with QLabel.setFont()? Kind regards Mikael ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] QDoubleValidate and Locale
I don't understand what your question is, exactly.
You say that when using the English (en) locale, a decimal . is accepted
as input (as it should), but when using the Spanish (es) locale, the comma
is also accepted as a decimal separator.
I'm not Spanish so I cannot verify the following, but I can imagine that
this is regular behaviour IF Spanish grammar allows you to write a comma in
decimal numbers :-P.
Anyway: a simple fix for not having to worry about this could be this:
enteredValue = yourLineEdit.text().replace(',', '.').toDouble()
Wkr,
2010/11/25 Juan José Gómez Romera jjgom...@gmail.com
Hi, im using QDoubleValidate to check the imput in a QLineEdit, work great
with en locale, only let write number and a point for decimals, but with es
locale the QDoubleValidate let write also ,,so i have to add other imput
check in code to avoid that.
Im look for in QDoubleValidate documentation any reference to milliar comma
or similar, but i dont find nothing to solve it, is this a bug or is normal?
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Re: [PyQt] Range slider
Did you take a look at Qxt? They have what you're looking forhttp://jpnurmi.kapsi.fi/docs/classQxtSpanSlider.html#_details, so it seems.. :-) On Mon, Nov 22, 2010 at 21:21, Held Michael michael.h...@bc.biol.ethz.chwrote: Hi folks, has anybody hints how to make a custom ranger slider widget? (a QSlider with two handles) I found a very nice example here: http://blog.enthought.com/enthought-tool-suite/traits/new-double-slider-editor/ but the code does the rendering on MacOS with Qt 4.7 not correctly. One handle is above the groove, but one below. Thanks a lot for your help! Michael ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] adjusting layouts question
I've got no notice of a directly manipulated (using mouse dragging) column width concerning QLayout's.. You could however do this programmatically by coupling some other numerical input widget (QSpinBox) to the columnWidth setter of your QLayout. On Fri, Nov 12, 2010 at 16:27, dizou di_...@yahoo.com wrote: I have a widget with a a layout and some widgets: class MainWidget(QWidget): def __init__(self, parent): QWidget.__init__(self, parent) gridLayout = QGridLayout() gridLayout.addLayout(treeControlLayout, 0, 0) gridLayout.addWidget(self.tree, 1, 0) gridLayout.addLayout(viewControlLayout, 0, 1) gridLayout.addWidget(self.view, 1, 1) gridLayout.addLayout(viewInfoLayout, 1, 2) gridLayout.addLayout(viewControlLayoutBottom, 2, 1) self.setLayout(gridLayout) This widget has 3 columns. How do I make it so that the user can adjust the width of the column? -- View this message in context: http://old.nabble.com/adjusting-layouts-question-tp30200354p30200354.html Sent from the PyQt mailing list archive at Nabble.com. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] How can i capture activated signal of Tray Icon??
And it does
print(Tray icon single clicked)
twice?
On Wed, Nov 10, 2010 at 16:30, Jebagnana Das jebagnana...@gmail.com wrote:
Thanks pete for your reply.
I think you've misunderstood the core of the problem. The problem here is
not the elif construct(Even changed the code, had no effect).
If we double click on the tray icon, on completion of the first click this
function gets called, and once again it's called when you finish your second
click.. Any solutions...
Am Tuesday 09 November 2010 15:08:29 schrieb Jebagnana Das:
Thanks Zoltan.. It did help a lot.. But if i want to capture single
click
and double click events of the mouse separately i'm afraid this can't be
used..
def onTrayIconActivated(self, reason):
if reason == QSystemTrayIcon.DoubleClick:
print('tray icon double clicked')
if reason == QSystemTrayIcon.Trigger:
print(Tray icon single clicked)
If i double click the tray icon it executes both if conditions. Any way
of
resolving this?. Thanks again..
elif instead of second if perhaps?
Pete
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End of PyQt Digest, Vol 76, Issue 18
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Re: [PyQt] simple charts with PyQT
You can take a look at the pygooglechart module. The generated chart is in fact a .png-image, which can be easily loaded into a QPixMap e.g.. (Adds the requirement of an internet connection though.) On Fri, Nov 5, 2010 at 13:08, Vincent Vande Vyvre vincent.vandevy...@swing.be wrote: Le 05/11/10 12:46, bar tomas a écrit : Hi, I was just wondering if someone could advise me on the simplest way of integrating a few simple charts (pie chart, time series chart, etc) into my PyQT application. Are there any chart widget libraries accessible through PyQT? Can they be used through QT Designer? Is it easier to just paint the charts onself, are there any examples of this in PyQT code? Thanks a million for any help. Tomas Bar ___ PyQt mailing list p...@riverbankcomputing.comhttp://www.riverbankcomputing.com/mailman/listinfo/pyqt Maybe PyQwt : http://pyqwt.sourceforge.net/ not tryed -- Vincent V.V. Oqapy https://launchpad.net/oqapy ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Last update: Code Example -- Performance of QTreeView
) c_a_b_action.setToolTip(Collapses all items under the selection.) c_a_b_action.triggered.connect(self.collapse_all_below) for action in (e_a_action, c_a_action, e_a_b_action, c_a_b_action): self.addAction(action) def expand_all(self): self.expandAll() def collapse_all(self): self.collapseAll() def expand_all_below(self): def expand_all_below_recursive(parent_index): self.expand(parent_index) children_indexes = \ self.model.get_children_indexes(parent_index) for child_index in children_indexes: expand_all_below_recursive(child_index) indexes = self.selectedIndexes() if indexes: index = indexes[0] expand_all_below_recursive(index) def collapse_all_below(self): def collapse_all_below_recursive(parent_index): self.collapse(parent_index) children_indexes = \ self.model.get_children_indexes(parent_index) for child_index in children_indexes: collapse_all_below_recursive(child_index) indexes = self.selectedIndexes() if indexes: index = indexes[0] collapse_all_below_recursive(index) class TreeModel(QtCore.QAbstractItemModel): def __init__(self, aux_root_view_item, parent): super(TreeModel, self).__init__(parent) self.aux_root_view_item = aux_root_view_item self.active_columns = parent.active_columns def rowCount(self, parent_index): parent_view_item = self.view_item_from_index(parent_index) if parent_view_item is None: return 0 return len(parent_view_item.children) def get_children_indexes(self, parent_index): children_indexes = [] for row_no in range(self.rowCount(parent_index)): children_indexes.append(self.index(row_no, 0, parent_index)) return children_indexes def columnCount(self, parent): return len(self.active_columns.columns) def data(self, index, role): if role == QtCore.Qt.TextAlignmentRole: return int(QtCore.Qt.AlignTop|QtCore.Qt.AlignLeft) if role != QtCore.Qt.DisplayRole: return None view_item = self.view_item_from_index(index) try: data = getattr(view_item.runtime_item, self.active_columns.columns[index.column()]) except AttributeError: data = return data def headerData(self, section, orientation, role): if (orientation == QtCore.Qt.Horizontal and role == QtCore.Qt.DisplayRole): assert 0 = section = len(self.active_columns.columns) return self.active_columns.columns[section] return QtCore.QVariant() def index(self, row, column, parent_index): view_item_parent = self.view_item_from_index(parent_index) return self.createIndex(row, column, view_item_parent.children[row]) def parent(self, child_index): child_view_item = self.view_item_from_index(child_index) if child_view_item is None: return QtCore.QModelIndex() parent_view_item = child_view_item.parent if parent_view_item is None: return QtCore.QModelIndex() grandparent_view_item = parent_view_item.parent if grandparent_view_item is None: return QtCore.QModelIndex() grandparent_view_item row = grandparent_view_item.children.index(parent_view_item) assert row != -1 return self.createIndex(row, 0, parent_view_item) def view_item_from_index(self, index): return (index.internalPointer() if index.isValid() else self.aux_root_view_item) if __name__ == __main__: run_time_item = RuntimeItem(Test, test_12, Test Item) view_factory = DummieViewItemFactory(run_time_item, max_items=5000) active_colums = ActiveColumns([name, ident, item_type]) app = QtGui.QApplication(sys.argv) tree_view = TreeView(view_factory.aux_root_view_item, active_colums) app.setApplicationName(IPDM) tree_view.show() app.exec_() ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] Clearing and disabling a QLineEdit causes a cursor to be shown?
Hello everybody, When trying to reset a form, consisting out of some QLineEdits and QSpinBoxes, I use this small piece of code: for field in [self.customerDataLayout.itemAtPosition(row, 1) for row in xrange(0, self.customerDataLayout.rowCount())]: widget = field.widget() widget.clear() widget.setEnabled(False) The result is that all those QLineEdits and QSpinBoxes are in fact 'cleared' and disabled, but the side effect is that some sort of vertical line (cursor?) is drawn in each QLineEdit (see the attachment for a screenshot of this problem). Is this normal behavior? How do I disable this vertical line to be shown? -- Nick Gaens attachment: QLineEdits_gone_wrong.png___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Optimizing WebView display
Or, profile your application using a tool like Valgrind to find out what parts of your code in particular should be worth looking at for optimizing purposes. Remember the 90/10 rule: a 90 percent speed increase can be achieved by optimizing only 10 percent of your code. On Wed, Sep 1, 2010 at 06:02, Taylor Carrasco crackerbu...@gmail.comwrote: Is the code available for us to take a look at for possible optimizations On Tue, Aug 31, 2010 at 9:09 AM, alanm m...@alandmoore.com wrote: I wrote a small browser in PyQT4 using QWebView, of course. The browser runs well and does what I need, but when I deployed it to my thin clients, it was far to slow to use. In fact, most modern browsers were; I had to settle on Epiphany because all the other browsers I tried were far to slow at showing or interacting with HTML controls (text inputs, drop-downs, etc). I tried disabling all QT effects in the Trolltech.conf file, and various graphicssystem settings on Qapplication, but it's still slow. Are there any other places where graphical effects can be toned down or optimized? I still notice a bit of a fade-in effect on drop-downs even when all QT Gui effects are disabled, and this is rendering really badly on the thin clients (slow and lots of screen artifacts). ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Pixel Manipulation Very Slow?
Hello, First, you might want to change both range()-methods in the for-loops to * xrange()*, since the latter is way faster. Anyway, to recognize which calls are slowing down your calculations, try to profile your application (using e.g. valgrind). In an ultimate case, when in need of some serious responsiveness on multi-megapixel-images, you can use SIP, SWIG, Cython or cTypes to let a C(++)-method do this job at a blazing speed: I once reached sub-second color conversion runs on a 16Mpixel image on an average laptop CPU.. Python is ok for this as long as it's good enough for you, but since it's quite slow by implemenation, you might want to take a look at some alternative approaches. On Fri, Aug 20, 2010 at 2:21 PM, zhang jian zhangm...@gmail.com wrote: Hello, This is my first post. I want to write a simply app layering several images each with different weighting. This problem is pixel manipulation by QImage appears to be quite slow. My code is: w = image.width() h = image.height() for j in range(h): for i in range(w): col = QtGui.QColor(image.pixel(i, j)) col.setRed(col.red()*self.fKd) image.setPixel(i, j, col.rgb()); painter.drawImage(0, 0, image) Just one image changed in red channel. It took about 5 seconds to redraw a 1280 X 720 image any time I changed Kd. Far from interactive. I'd like to know is there any way to do stuff like that faster? Or calculating a million pixels in PyQt is just a bad idea? Any advice should be appreciated. Thanks, zhang ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] possible to change the central widget in a QMainWindow
You might want to set a QStackedWidget as your centralWidget and toggle the content of that first one? On Wed, Aug 11, 2010 at 6:51 PM, Danny Shevitz shev...@lanl.gov wrote: ilman/listinfo/pyqthttp://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Clear/delete widget in a Layout
Take a look at QStackedWidget or QStackedLayout. On Mon, Aug 9, 2010 at 12:59 AM, starglider develop starglider@gmail.com wrote: Hi, I have a layout and need to remove all the widgets in the layout to populate with other widget, but didn't find a way of doing that. Any ideas. Thanks in advance. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Add menu at runtime
You could try to call menuBar.update() after having added / removed menu's or actions to or from it.. On Sun, Jul 4, 2010 at 9:19 PM, F.A.Pinkse fapin...@gmail.com wrote: Hi All, I want to add a menu at runtime to an already exsiting menubar. How do I do that? Tnanks Frans. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] widgets and references in python
You could put those QLabels in a list e.g.:
labels = []
for i in range(3):
label = QLabel('%d' % i)
label.show()
labels.append(label) # This line prevents the garbage collection of
label after each iteration, since there's a reference to it in this list
A second option could be to add such a QLabel to a layout. This also means
the layout will store a reference to this label, preventing it from being
deleted automatically.
Nick
On Tue, Jun 29, 2010 at 11:01 AM, V. Armando Solé s...@esrf.fr wrote:
victor wrote:
hello list,
i have encountered an issue that i have reduced to this sample code:
if __name__ == '__main__':
import sys
from PyQt4.QtGui import QLabel
from PyQt4.QtCore import QTimer
from PyQt4.QtGui import QApplication
app = QApplication(sys.argv)
for i in range(3):
l = QLabel('%d' % i)
l.show()
QTimer.singleShot(5000, app.quit)
app.exec_()
because i'm using the same variable to reference the instances, only one
instance remains (the last one) which is not really what i expect.
what is the way to create several widgets in a loop? thanks.
As with any python object, you have to keep at least a reference to each
of the generated objects in order to prevent garbage collection.
Armando
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Re: [PyQt] signal twice emit
Try this way of connecting:
self.btn_save.clicked.connect(self.p)
On Tue, Jun 29, 2010 at 3:06 PM, Csaba Toth csaba.t...@i3rendszerhaz.huwrote:
Hi,
i have a problem with recent PyQt versions, sometimes a signal (what i
saw was with button click signal) emitted twice.
for example i use this:
def p(self, clicked=False):
print('emitted')
self.connect(self.btn_save, QtCore.SIGNAL(clicked(bool)), self.p)
and if i press the button it wrotes twice the 'emitted' to console.
What i make wrong?
thanks in advance,
Csaba
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Re: [PyQt] Setting QComboBox clicked on width
Hello, try something like: self.comboBox.currentIndexChanged.connect(self.onCurrentIndexChanged) def onCurrentIndexChanged(self, newIndex): self.comboBox.adjustSize() # Don't know if this works automagically, but given the newIndex argument, you could fetch the current selected string and calculate the required width yourself in the worst case On Thu, May 27, 2010 at 12:01 PM, aaron barclay aaron.diplo...@gmail.comwrote: Hello, I am having trouble setting a QComboBox. I would like the ComboBox to be quite narrow, that is easy enough, but when clicked on I would like the combobox to expand the listed results to full width of the text. Is this possible? Any help appreciated. Regards, aaron. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] QTableWidget: cannot alter text of header labels
Hello PyQt, I'm wondering why I can't change the text that's displayed in the horizontal or vertical header of my standard QTableWidget. - Constructor and simple count specification self.tw = QtGui.QTableWidget() self.tw.setColumnCount(5) - Attempt 1: self.tw.setHorizontalHeaderLabels((a, b, c, d, e)) # Doesn't work, the default 1 ... 5 are still shown self.tw.setHorizontalHeaderItem(1, QtGui.QTableWidgetItem(b)) # Doesn't work, the header label isn't updated to b - Attempt 2: twi = QtGui.QTableWidgetItem(b) self.tw.setHorizontalHeaderItem(1, twi) self.tw.horizontalHeader().setVisible(True) # Nope, this doesn't work either - Attempt 3: twi = QtGui.QTableWidgetItem() self.tw.setHorizontalHeaderItem(1, twi) self.tw.horizontalHeader().setVisible(True) # Nope, this doesn't work either _twi = self.tw.horizontalHeaderItem(1) _twi.setText(b) # Nope, doesn't get updated by this either.. What am I doing wrong? How much more combinations of horizontalHeader-stuff do I have to try in order to do this simple thing? -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Searching method for QTableVew
I would take a look at QTableWidget instead of QTableView. For such a tableWidget: def highlightResults(self, enteredText): for row in xrange(0, tableWidget.rowCount()): tableWidgetItem = tableWidget.item(row, 0) # Second argument is column if tableWidgetItem.text().contains(enteredText): tableWidgetItem.setBackground(QBrush(Qt.blue)) Also, connect the lineEdit's textChanged signal to the method above like this: lineEdit.textChanged.connect(self.highlightResults) On Tue, May 4, 2010 at 1:49 AM, AON LAZIO aonla...@gmail.com wrote: Hi, Suppose I want to search for some elements in QTableView when I type into a lineedit box. How can I locate the item in the table (The table direcly highlight the items searched if found) Which method should I use? Thanks in advance Aonlazio -- Passion is my style ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] QLineEdit drop event
Creating a small derived class and a new instance of it isn't that much of an effort in Python, given you only need to reimplement the dropEvent method. I don't think there are other solutions, based upon the doc's suggestion.. Although I must say that I've came across some code here on the list some time ago that showed how to capture click events on a QLabel without subclassing it, so you might want to search for that snippet, since it's basically the same combination of items (event on a QWidget).. On Wed, Apr 28, 2010 at 2:04 PM, Sebastian Elsner sebastianels...@freenet.de wrote: Hello, I designed a GUI with Qt Designer. The GUI has several QLineEdits. I'd like to be able to drop files from the windows explorer to this line edits and display the path of the files. Documentation suggests that I subclass the line edit and reimplement the dropEvent. Would not be a problem, but my Line edit widget already exists on the dialog, so how to subclass without creating a completely new instance? Or is there another way I don't see? Thank you for any suggestions Regards Sebastian -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] QSystemTrayIcon not working with py2exe
Without insight to your setup.py, it's a lot of guessing ;-). You might have forgotten to add the icon itself as a resource to setup.py? On Tue, Apr 27, 2010 at 1:33 PM, Sebastian Elsner sebastianels...@freenet.de wrote: Hello, My application has a system tray icon, which gets its data from a ressource compiled via pyrcc. When started via double click on the .py script the icon shows up as expected. But when I compile with py2exe It does not. I also tried not using pyrcc, same result. Is this a known problem? Any ideas why this would happen? Thanks Sebastian -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Carol Newman
Please someone remove this address from the lists, because of spamming.. On Tue, Apr 20, 2010 at 11:13 PM, Zac Burns zac...@gmail.com wrote: http://www.ristorantealpirata.com/home.php -- Zachary Burns (407)590-4814 Aim - Zac256FL Production Engineer Zindagi Games ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] How to disable delete button on forms
Eum.. What close button? Are you using QtDesigner or something? Show us what you're doing by providing some code. Nick On Mon, Apr 19, 2010 at 5:25 PM, Jothybasu K Selvaraj jothyb...@gmail.comwrote: Sorry, I meant close button. Thanks, Jothy On Mon, Apr 19, 2010 at 4:24 PM, Jothybasu K Selvaraj jothyb...@gmail.com wrote: Hi all, How can I disable the delete button on a form? Any hints? Thanks, Jothy ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Drag and drop: Pixmap and lineedit/label problem
In PyQt4, this is often solved by placing an underscore after the method.. like QDialog.exec_() and QWidget.raise_() Documentation: http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qwidget.html#raise On Tue, Apr 13, 2010 at 7:06 PM, Anshul Jain aj.phoenix...@gmail.comwrote: I just tried using raise(). but it's alredy a keyword in python!! how to use it? On Tue, Apr 13, 2010 at 9:36 PM, Anshul Jain aj.phoenix...@gmail.comwrote: Can you just give me an example on how to use this? Thanks for your reply. On Tue, Apr 13, 2010 at 3:46 AM, Nick Gaens m...@nickgaens.com wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Try to call raise() on the widget. http://doc.trolltech.com/4.6/qwidget.html#raise On 12/04/2010 23:33, Anshul Jain wrote: Hello I'm trying to implement drag and drop and also trying to display a label/LineEdit on my image. But the problem is that whenever i'm dragging and dropping my image and using the label.move(x,y) to move the label to appropriate position it gets hidden behind the image. :( How can i fix this up. I am also attaching the code. Please tell me what should i do. Regards Anshul ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt - -- - -- Nick Gaens -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJLw5uyAAoJEHryXS9yfz/RoO0H/1YxvmWs/0n5tStAFLtT2EHI W7RF+/4gX9Yi0YG1qowTg2Cuxa5zg8wx298CgLpGMQ4m0iF09wBJxszJhWtbo74A pfeLVNWR/pY9Ps/G/OeS0OgxW0KiTlOy9GO7V1HG9WyhC4KsYXRD1Xqq50jYLuOO 8XObYKSzAL2UAxAdxPK/f9H1sJtJY4ASsSe5Q5Kq6L+6gCs4dbeCU/KfMqc+uJaK fzUXzqsk65ahk03QbA2sAtWXi3098igOMhSizl26OpKi8LG8bpuxHGLUurB3uLhc a1l0Vd7MzXOuapqM0YfSCU9oN3CAtglOt+HOhWOswot+ICWMDK8OXTDgFW4lr+s= =Xb21 -END PGP SIGNATURE- ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- NSIT B.E. student (Computers) http://anshul.pcunified.com http://pcunified.com -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Drag and drop: Pixmap and lineedit/label problem
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Try to call raise() on the widget. http://doc.trolltech.com/4.6/qwidget.html#raise On 12/04/2010 23:33, Anshul Jain wrote: Hello I'm trying to implement drag and drop and also trying to display a label/LineEdit on my image. But the problem is that whenever i'm dragging and dropping my image and using the label.move(x,y) to move the label to appropriate position it gets hidden behind the image. :( How can i fix this up. I am also attaching the code. Please tell me what should i do. Regards Anshul ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt - -- - -- Nick Gaens -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJLw5uyAAoJEHryXS9yfz/RoO0H/1YxvmWs/0n5tStAFLtT2EHI W7RF+/4gX9Yi0YG1qowTg2Cuxa5zg8wx298CgLpGMQ4m0iF09wBJxszJhWtbo74A pfeLVNWR/pY9Ps/G/OeS0OgxW0KiTlOy9GO7V1HG9WyhC4KsYXRD1Xqq50jYLuOO 8XObYKSzAL2UAxAdxPK/f9H1sJtJY4ASsSe5Q5Kq6L+6gCs4dbeCU/KfMqc+uJaK fzUXzqsk65ahk03QbA2sAtWXi3098igOMhSizl26OpKi8LG8bpuxHGLUurB3uLhc a1l0Vd7MzXOuapqM0YfSCU9oN3CAtglOt+HOhWOswot+ICWMDK8OXTDgFW4lr+s= =Xb21 -END PGP SIGNATURE- ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] [SOLVED]Syntax to access a blob column on sqlite
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Why do you copy construct blobField on the line where you bindValue() it? I assume it's verbose and can be omitted.. On 29/03/2010 15:36, IloChab wrote: 2010/3/28 IloChab iloc...@gmail.com: I tried in this way: blobField = QtCore.QVariant ( QtCore.QByteArray ([1,2,3,]) ) query = QtSql.QSqlQuery() query.prepare(INSERT INTO blobTable (blobColumn) VALUES(?)) query.bindValue(0,(blobField,)); query.exec_(); ... and I got no error, but in the DB I find an empty field: (u'') Which is the correct syntax to store a blob field??? The right way to do it was: blobField = QtCore.QByteArray ([1,2,3,]) query = QtSql.QSqlQuery() query.prepare(INSERT INTO blobTable (blobColumn) VALUES(?)) query.bindValue(0, QtCore.QByteArray(blobField,)) query.exec_() I hope this can be usefull to someone else!! Thank to the list anyway! ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJLsLCkAAoJEHryXS9yfz/RJ8wH/2b9Kcilct9L1ZMocNajEBw6 AoKi4rEEfxUFjdlpg+z73GenWjWoLjbaZGENuzTbtNsqt9LS1TJM8XkhfXGERmf9 6Jo3J22YeEwy08FeGW8a47FcQ0R0Rf0ufAnN2RVNrvMXHDkAUHE+Ymth1OIJHc3y 2Jlq5sO049U7mtavCUj0Xp+NXezDYlLtUQ0ybhDnEtQr857rGbjrmIPED/xn7/Ha On1YP8zxRAclOx+lKxCclpdlenoSg3qT0bxERbKYsq68GMEWXk9pq/38tWO8p+QQ 6t/S99uNLRd4Jk/tVq3y+fs7DhXMM6V29L890glHg15nRn9F4Uk+DGub7cHRLwY= =b0De -END PGP SIGNATURE- ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] stylesheet sub-controlls
Hello Lennart,
By subcontrols, do you mean something like:
qpushbutton { color: white; }
qpushbutton:pressed { color: black; }
?
If so, you can set the same stylesheet to a widget as in the regular Qt,
it has little to do with PyQt itself, since the stylesheet is just a string
to be parsed.
On Wed, Mar 24, 2010 at 9:22 AM, Lennart Jansen lord@gmx.net wrote:
Hi,
are there stylesheet sub-controlls in pyqt like in qt? For example the
widget Qprogressbar in qt got the sub-controll chunk, but i cant find
anything like it in pyqt.
I wish all of you a good day!
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Re: [PyQt] Delete a Laytou
I think it's best if you provide a stripped piece of code of what you've achieved so far and let the list take a look at it.. On Fri, Mar 19, 2010 at 10:17 PM, starglider develop starglider@gmail.com wrote: Hi Nick, I'm trying to make it work without luck, is there any python example? The example that is in *Rapid GUI Programming With Python and Qt* is only for stackedwidgets. Thank you. On 19 March 2010 10:38, Nick Gaens m...@nickgaens.com wrote: Take a look at a QStackedLayout.. You can add multiple widgets, each having their own layout, to it and set it as the central widget of your mainwindow. There's no need for deleting a layout and set a new one, since you alternate between the added widgets / layouts. Check out http://doc.trolltech.com/4.3/qstackedlayout.html#details to see a short example.. On Thu, Mar 18, 2010 at 11:39 PM, starglider develop starglider@gmail.com wrote: Hi, I have a QMainWindow with a main Vertical Layout and 3 HLayouts and several Widgets in every layout, but the program needs to remove all the layouts to create another one with a widget. How can I remove the original layouts? I was unable to find an answer in the internet. Thank you in advance for your help. Regards ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Delete a Laytou
Take a look at a QStackedLayout.. You can add multiple widgets, each having their own layout, to it and set it as the central widget of your mainwindow. There's no need for deleting a layout and set a new one, since you alternate between the added widgets / layouts. Check out http://doc.trolltech.com/4.3/qstackedlayout.html#details to see a short example.. On Thu, Mar 18, 2010 at 11:39 PM, starglider develop starglider@gmail.com wrote: Hi, I have a QMainWindow with a main Vertical Layout and 3 HLayouts and several Widgets in every layout, but the program needs to remove all the layouts to create another one with a widget. How can I remove the original layouts? I was unable to find an answer in the internet. Thank you in advance for your help. Regards ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Writing user defined function in the existing application
Yes, take a look at the resizeEvent(event) method: http://doc.trolltech.com/4.6/qwidget.html#resizeEvent http://doc.trolltech.com/4.6/qwidget.html#resizeEvent:-) Nick On Thu, Mar 11, 2010 at 8:19 AM, sindhuja venkat sindhujaven...@gmail.comwrote: Hello all, We can modify the close event and add some alerts or dialogs in the application using def closeEvent() function. Likewise Is there any way to modify the minimize event. Thanks in advance... -- sindhu ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Style sheet properties..
You might take a look at so called Selector types ( http://qt.nokia.com/doc/4.3/stylesheet-syntax.html#selector-types). Given a QDialog and its children (e.g. QPushButtons), this can prevent this cascading behaviour of styles, although I've never had any problems with that without using this way of selecting matching objects.. Can you show a small piece of code (small stylesheet and the way you apply it) please? On Tue, Mar 9, 2010 at 9:05 PM, Jebagnana Das jebagnana...@gmail.comwrote: Hello all, If i apply a property to a parent widget it is automatically applied for child widgets too.. Is there any way of preventing this?? For example if i set background color as white in a dialog then any button,combo boxes and scroll bars(within the dialog) looks white and it lacks it's native look(have to say it's unpleasant to the eyes(esp. in unix) ugly).. Is there any way that i can apply the stylesheets only to a parent widget not to it's children? can i exclude specifically some child widgets from not inheriting parent SS properties?? ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Style sheet properties..
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Re: [PyQt] How to minimize the QMainwindow to the system Tray
Where is the systray-part in that example? On Mon, Mar 8, 2010 at 7:32 PM, Russell Valentine r...@coldstonelabs.orgwrote: Reimplement changeEvent in QMainWindow, something like below: def changeEvent(self, e): if(e.type() == QtCore.QEvent.WindowStateChange and self.isMinimized()): self.hide() e.accept() return else: super(Window, self).changeEvent(e) sindhuja venkat wrote: Hi..I am doing an application in PyQt4. Do anyone know how to reduce the application to the system Tray? When I click the minimize button, the application should go to the tray. If anybody knows, your help is most welcome. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Problem displaying images in QLabel (Newbie)
Well, you can print the output of this method: http://doc.trolltech.com/4.6/qfile.html#exists, after feeding it the path you're using at the moment.. http://doc.trolltech.com/4.6/qfile.html#exists On Sun, Feb 28, 2010 at 9:27 PM, bar tomas barto...@gmail.com wrote: Many thanks for trying to help me. I think the image file can be found because I can preview the form ok from QtDesigner. Do I need to do any steps to convert the image to a resource? (i dont really understand the difference between an image and a resource in Qt). Many thanks again for your patience. On Thu, Feb 25, 2010 at 3:00 PM, Nick Gaens m...@nickgaens.com wrote: I'm guessing it has to do with the .png file not being found, but without some example code, only supernatural powered humans can help you :-). On Wed, Feb 24, 2010 at 4:11 PM, bar tomas barto...@gmail.com wrote: Hi, I'm programming in PyQt using the Eric4 IDE and QtDesigner. I've created a QLabel containing a png image that displays fine when previewing the form in QtDesigner, but when I execute my python program from Eric, the image is not visible. Do you know what I'm doing wrong? Many thanks. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Problem displaying images in QLabel (Newbie)
I'm guessing it has to do with the .png file not being found, but without some example code, only supernatural powered humans can help you :-). On Wed, Feb 24, 2010 at 4:11 PM, bar tomas barto...@gmail.com wrote: Hi, I'm programming in PyQt using the Eric4 IDE and QtDesigner. I've created a QLabel containing a png image that displays fine when previewing the form in QtDesigner, but when I execute my python program from Eric, the image is not visible. Do you know what I'm doing wrong? Many thanks. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] help with Qdate
What do you mean by a date edit widget? Futhermore, you could check out the QDate documentationhttp://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/qdate.html. Take a look at the method getDate() in particular.. On Tue, Feb 16, 2010 at 2:40 PM, NISA BALAKRISHNAN snisa.balakrish...@gmail.com wrote: hi, can anyone tel me how to get date entered to date edit widget in a string format so that i can save it in a excel sheet. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] QGraphicsPixmapItem not showing set pixmap
It doesn't make that much sense to me.
I did print QFile.exists('/.../.../pic1.png'); it outputs True.
Ok, great, so there is a file there, named pic1.png. What exactly is the
meaning of three dots for a folders name? I am asking this, because you say
in the next sentence:
I am doing pic = QPixmap('/../../pic1.png')
As you can see, only two dots here, which would make more sense to me
(that's why I suggested ../../pic1.png, since this is a more common
construction).
Can you elaborate why there are three dots in your path to the image?
Secondly, did you take a look at the documents to use a resources-file?
Nick
On Thu, Jan 28, 2010 at 9:14 PM, dizou di_...@yahoo.com wrote:
Can someone give me some more help about this?
dizou wrote:
I did print QFile.exists('/.../.../pic1.png'); it outputs True.
I am doing pic = QPixmap('/../../pic1.png') not
pic = QPixmap('../../pic1.png')
nickgaens wrote:
Did you try QFile.exists('/.../.../pic1.png') ?
I'm guessing you are trying to do:
pic = QPixmap('../../pic1.png') - note the change in the path to the
image file.
Nick
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Re: [PyQt] QGraphicsPixmapItem not showing set pixmap
Did you try QFile.exists('/.../.../pic1.png') ?
I'm guessing you are trying to do:
pic = QPixmap('../../pic1.png') - note the change in the path to the
image file.
Nick
On 20/01/2010 22:21, dizou wrote:
The PNG does exist. I did DisplayItem.ensureVisible(10, 10, 10, 10) and
DisplayItem.ensureVisible() and neither function did anything. There were no
errors though.
Jason H-3 wrote:
Simply, your PNG does not exist. Try print
QFile.exists('/.../.../pic1.png)
Or
You aren't looking at it. Try using ensureVisible() on it in case its
off-screen.
- Original Message
From: dizoudi_...@yahoo.com
To: pyqt@riverbankcomputing.com
Sent: Tue, January 19, 2010 12:23:19 PM
Subject: [PyQt] QGraphicsPixmapItem not showing set pixmap
I have:
class DisplayItem(QGraphicsPixmapItem):
def __init__(self, parent, graphView=None):
QGraphicsPixmapItem.__init__(self)
pic = QPixmap(/.../.../pic1.png)
self.setPixmap(pic)
and then when I do QGraphicsScene.addItem(DisplayItem), nothing shows up.
I can use the paint() function to draw my DisplayItem as my different
shapes
and stuff, so I have my QGraphicsScene and QGraphicsView setup correctly.
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Re: [PyQt] Downloading PyQt for Python 2.6
On the page you link to, there is this link: http://riverbankcomputing.com/static/Downloads/PyQt4/PyQt-Py2.6-gpl-4.7-1.exe Isn't this what you are looking for? On 21/01/2010 1:04, Chris Bergstresser wrote: On Wed, Jan 20, 2010 at 5:57 PM, Demetrius Cassidy dcassid...@mass.rr.com wrote: Er, you could compile it from source. But afaik, 2.6.4 is the current python version, yes? PyQt4 should also be already compiled for Python 2.6 I have never compiled anything from source in my life. I don't have a compiler installed on this machine, nor do I really feel like finding, installing, and debugging one just to install this package. The download page at http://riverbankcomputing.com/software/pyqt/download has links for Python 2.5-compatible PyQt 4.4.3, but that's all. -- Chris ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] QGraphicsGridLayout
Aron Bierbaum wrote: I have been trying to use the QGraphicsGridLayout but I am running into problems when I try to have a QGraphicsWidget span multiple columns. The basic problem is that if I try to span a large widget in the second row under four smaller widgets in the top row, the widgets in the top row are not layed out correctly. Does anyone have any idea what I might be doing wrong? -Aron ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt Not providing us with a proper piece of example code? :-) Nick ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] TextEdit background color
Take a look at style sheets. On 8-dec-2009, at 09:44, Nadav Chernin nadavcher...@gmail.com wrote: Hi, i'm new for PyQt I use TextEdit widget, and i want that it's background color will black (for example) I tried to use TextEdit.setTextBackgroundColor but only background of text painted by black color. How can i color all TextEdit area by any color? Thanks, Nadav ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] Corrupted data in QDataStream
Hello everyone, I'm trying to send a python-string via a QTcpSocket. I am using this structure: block = QtCore.QByteArray() stream = QtCore.QTextStream(block, QtCore.QIODevice.WriteOnly) stream myPythonString if myTcpSocket.isWritable(): myTcpSocket.write(block) - However, it now seems that there are some corrupted characters at the beginning of the bytearray (or textstream) :-S.. A solution for this can be to call stream.flush() just before I stream myPythonString to it.. In code: block = QtCore.QByteArray() stream = QtCore.QTextStream(block, QtCore.QIODevice.WriteOnly) stream.flush() # removes the ascii dump successfully stream myPythonString if myTcpSocket.isWritable(): print writing data to , str(socket.peerAddress().toString()) myTcpSocket.write(block) # crashes here - But at this point, the program crashes at the last line when actually writing to the socket.. How come? I found out that this crash can be reproduced anywhere when calling stream.string() just after streaming myPythonString to the textstream.. In code: block = QtCore.QByteArray() stream = QtCore.QTextStream(block, QtCore.QIODevice.WriteOnly) stream.flush() # removes the ascii dump stream myPythonString print str(stream.string()) # crashes here already.. if myTcpSocket.isWritable(): print writing data to , str(socket.peerAddress().toString()) myTcpSocket.write(block) - How on earth can this be? -- Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Having a problem with QTcpSocket
Nick Gaens schreef:
Phil Thompson schreef:
On Sat, 21 Nov 2009 17:19:00 +0100, Nick Gaens nickga...@gmail.com wrote:
Hello all,
I'm trying to get two clients to speak to each other, using an instance
of
QtNetwork.QTcpSocket for each client.
The clients are on different computers with IP's: 192.168.1.100 and .102
On the first client, I run the code below:
--
def __init__(self):
self.socket = QtNetwork.QTcpSocket(self)
self.socket.setLocalAddress(QtNetwork.QHostAddress("192.168.1.100"))
self.socket.setLocalPort(5)
self.socket.readyRead.connect(self.receiveData)
def connectToOtherClient(self, ip):
self.socket.connectToHost(QtNetwork.QHostAddress(ip), 5)
if self.socket.waitForConnected(1):
print "Connected!"
else:
print self.socket.state() # Prints '0' (zero), meaning
UnconnectedState
--
So I create a QTcpSocket, I tell it the IP I want to use and after having
the user asking for the remote IP address, connectToOtherClient() is
invoked.
On the second client, I just create an instance of this class, using
"192.168.1.102" as IP there in __init__(). No invocation of
connectToOtherClient() there, ofcourse..
The problem is: it doesn't connect at all.. The socket state remains
"UnconnectedState"..
What am I doing wrong here?
Clients talk to servers, not other clients. Have a look at QTcpServer.
Phil
I've now instantiated a QTcpServer, which "creates" a socket for an
incoming connection (QTcpServer.nextPendingConnection(), that is).
Both clients have such a server instance, since they both should be
able to connect to each other. But still, the
QTcpSocket.connectToHost() invocation doesn't do a thing.
I'm starting to think this is some bug / error in PyQt4 itself instead
of in my code. The C++-Qt4 Fortune Server + Client example runs
flawlessly between the two machines, so there are no network blocks or
something like that. Also, the C++-code has the same logical flow as my
code below.
def __init__(self):
self.server = QtNetwork.QTcpServer(self)
self.server.serverPort = 5
self.server.newConnection.connect(self.clientConnecting)
self.server.listen() # defaults to QHostAddress.Any
def clientConnecting(self): # used by the "server"
if self.server.hasPendingConnections():
connectingClient = self.server.nextPendingConnection()
connectingClient.readyRead.connect(self.receiveData)
def connectToClient(self, ip): # used by the "client"
socket = QtNetwork.QTcpSocket()
socket.readyRead.connect(self.receiveData)
socket.connectToHost(QtNetwork.QHostAddress(ip), 5) # ip of
server
if socket.waitForConnected(5000):
print "Connected!"
I *really* do not understand why this is *not* working..
Nick
Anyone? :-( I've tried various things, but none of them helped.. I've
found out that both NIC's actually send / receive some bytes (proven by
the suddenly increasing number of sent / received bytes on both
computers), but it doesn't actually connect them..
Nick
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Re: [PyQt] Having a problem with QTcpSocket
Hans-Peter Jansen schreef:
On Monday 23 November 2009, 13:27:52 Nick Gaens wrote:
Nick Gaens schreef:
Phil Thompson schreef:
On Sat, 21 Nov 2009 17:19:00 +0100, Nick Gaens nickga...@gmail.com
wrote:
Hello all,
I'm trying to get two clients to speak to each other, using an instance
of
QtNetwork.QTcpSocket for each client.
The clients are on different computers with IP's: 192.168.1.100 and .102
On the first client, I run the code below:
--
def __init__(self):
self.socket = QtNetwork.QTcpSocket(self)
self.socket.setLocalAddress(QtNetwork.QHostAddress("192.168.1.100"))
self.socket.setLocalPort(5)
self.socket.readyRead.connect(self.receiveData)
def connectToOtherClient(self, ip):
self.socket.connectToHost(QtNetwork.QHostAddress(ip), 5)
if self.socket.waitForConnected(1):
print "Connected!"
else:
print self.socket.state() # Prints '0' (zero), meaning
UnconnectedState
--
So I create a QTcpSocket, I tell it the IP I want to use and after having
the user asking for the remote IP address, connectToOtherClient() is
invoked.
On the second client, I just create an instance of this class, using
"192.168.1.102" as IP there in __init__(). No invocation of
connectToOtherClient() there, ofcourse..
The problem is: it doesn't connect at all.. The socket state remains
"UnconnectedState"..
What am I doing wrong here?
Clients talk to servers, not other clients. Have a look at QTcpServer.
Phil
I've now instantiated a QTcpServer, which "creates" a socket for an
incoming connection (QTcpServer.nextPendingConnection(), that is). Both
clients have such a server instance, since they both should be able to
connect to each other. But still, the QTcpSocket.connectToHost()
invocation doesn't do a thing. I'm starting to think this is some bug /
error in PyQt4 itself instead of in my code. The C++-Qt4 Fortune Server +
Client example runs flawlessly between the two machines, so there are no
network blocks or something like that. Also, the C++-code has the same
logical flow as my code below.
def __init__(self):
self.server = QtNetwork.QTcpServer(self)
self.server.serverPort = 5
self.server.newConnection.connect(self.clientConnecting)
self.server.listen() # defaults to QHostAddress.Any
def clientConnecting(self): # used by the "server"
if self.server.hasPendingConnections():
connectingClient = self.server.nextPendingConnection()
connectingClient.readyRead.connect(self.receiveData)
def connectToClient(self, ip): # used by the "client"
socket = QtNetwork.QTcpSocket()
socket.readyRead.connect(self.receiveData)
socket.connectToHost(QtNetwork.QHostAddress(ip), 5) # ip of
server if socket.waitForConnected(5000):
print "Connected!"
I *really* do not understand why this is *not* working..
Nick
Anyone? :-( I've tried various things, but none of them helped.. I've
found out that both NIC's actually send / receive some bytes (proven by
the suddenly increasing number of sent / received bytes on both
computers), but it doesn't actually connect them..
The usual "please provide a minimum self containing example" applies.
Pete
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How odd that I receive this mail *the moment* my code started working
:-P.
I found that the serverPort may not be overwritten.
I removed this assignment:
self.server.serverPort = 5
and the clients now can connect to the server w/o any problem..
Downside is that the port is random..
Nick
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Re: [PyQt] Having a problem with QTcpSocket
Hans-Peter Jansen schreef: On Monday 23 November 2009, 15:19:06 Nick Gaens wrote: Hans-Peter Jansen schreef: [...] def __init__(self): self.server = QtNetwork.QTcpServer(self) self.server.serverPort = 5 self.server.newConnection.connect(self.clientConnecting) self.server.listen() # defaults to QHostAddress.Any def clientConnecting(self): # used by the "server" if self.server.hasPendingConnections(): connectingClient = self.server.nextPendingConnection() connectingClient.readyRead.connect(self.receiveData) def connectToClient(self, ip): # used by the "client" socket = QtNetwork.QTcpSocket() socket.readyRead.connect(self.receiveData) socket.connectToHost(QtNetwork.QHostAddress(ip), 5) # ip of server if socket.waitForConnected(5000): print "Connected!" [...] How odd that I receive this mail *the moment* my code started working :-P. I found that the serverPort may not be overwritten. I removed this assignment: self.server.serverPort = 5 Assigning properties this way usually won't work in PyQt (although Phil tackles this already). try this: self.server.listen(QtNetwork.QHostAddress.Any, 5) and the clients now can connect to the server w/o any problem.. Downside is that the port is random.. Pete ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt Hmm.. That doesn't seem to work :-S.. self.server.listen(QtNetwork.QHostAddress.Any, 5): TypeError: argument 1 of QTcpServer.listen() has an invalid type How can this be? I've got PyQt4.6.2 on WinXP, Python 2.6.4 ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Problem with class inheriting QDialog
dizou schreef: What does that mean? One thing I thought I could do is have my TreeWidget have a GetSelectedItem function. Then in my Main Window, when I click the button, it calls a function that will call the GetSelectedItem function, then emit a signal with the return value as a parameter. Is that possible? With the new way of connecting signals and slots, would I then have something like this: self.editTreeItemButton.clicked.connect(self.EditTreeItemButtonClicked()) Thanks. Almost :-) self.editTreeItemButton.clicked.connect(self.EditTreeItemButtonClicked) Nick ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Having a problem with QTcpSocket
Phil Thompson schreef:
On Sat, 21 Nov 2009 17:19:00 +0100, Nick Gaens nickga...@gmail.com wrote:
Hello all,
I'm trying to get two clients to speak to each other, using an instance
of
QtNetwork.QTcpSocket for each client.
The clients are on different computers with IP's: 192.168.1.100 and .102
On the first client, I run the code below:
--
def __init__(self):
self.socket = QtNetwork.QTcpSocket(self)
self.socket.setLocalAddress(QtNetwork.QHostAddress("192.168.1.100"))
self.socket.setLocalPort(5)
self.socket.readyRead.connect(self.receiveData)
def connectToOtherClient(self, ip):
self.socket.connectToHost(QtNetwork.QHostAddress(ip), 5)
if self.socket.waitForConnected(1):
print "Connected!"
else:
print self.socket.state() # Prints '0' (zero), meaning
UnconnectedState
--
So I create a QTcpSocket, I tell it the IP I want to use and after having
the user asking for the remote IP address, connectToOtherClient() is
invoked.
On the second client, I just create an instance of this class, using
"192.168.1.102" as IP there in __init__(). No invocation of
connectToOtherClient() there, ofcourse..
The problem is: it doesn't connect at all.. The socket state remains
"UnconnectedState"..
What am I doing wrong here?
Clients talk to servers, not other clients. Have a look at QTcpServer.
Phil
I've now instantiated a QTcpServer, which "creates" a socket for an
incoming connection (QTcpServer.nextPendingConnection(), that is).
Both clients have such a server instance, since they both should be
able to connect to each other. But still, the
QTcpSocket.connectToHost() invocation doesn't do a thing.
I'm starting to think this is some bug / error in PyQt4 itself instead
of in my code. The C++-Qt4 Fortune Server + Client example runs
flawlessly between the two machines, so there are no network blocks or
something like that. Also, the C++-code has the same logical flow as my
code below.
def __init__(self):
self.server = QtNetwork.QTcpServer(self)
self.server.serverPort = 5
self.server.newConnection.connect(self.clientConnecting)
self.server.listen() # defaults to QHostAddress.Any
def clientConnecting(self): # used by the "server"
if self.server.hasPendingConnections():
connectingClient = self.server.nextPendingConnection()
connectingClient.readyRead.connect(self.receiveData)
def connectToClient(self, ip): # used by the "client"
socket = QtNetwork.QTcpSocket()
socket.readyRead.connect(self.receiveData)
socket.connectToHost(QtNetwork.QHostAddress(ip), 5) # ip of
server
if socket.waitForConnected(5000):
print "Connected!"
I *really* do not understand why this is *not* working..
Nick
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[PyQt] Having a problem with QTcpSocket
Hello all, I'm trying to get two clients to speak to each other, using an instance of QtNetwork.QTcpSocket for each client. The clients are on different computers with IP's: 192.168.1.100 and .102 On the first client, I run the code below: -- def __init__(self): self.socket = QtNetwork.QTcpSocket(self) self.socket.setLocalAddress(QtNetwork.QHostAddress(192.168.1.100)) self.socket.setLocalPort(5) self.socket.readyRead.connect(self.receiveData) def connectToOtherClient(self, ip): self.socket.connectToHost(QtNetwork.QHostAddress(ip), 5) if self.socket.waitForConnected(1): print Connected! else: print self.socket.state() # Prints '0' (zero), meaning UnconnectedState -- So I create a QTcpSocket, I tell it the IP I want to use and after having the user asking for the remote IP address, connectToOtherClient() is invoked. On the second client, I just create an instance of this class, using 192.168.1.102 as IP there in __init__(). No invocation of connectToOtherClient() there, ofcourse.. The problem is: it doesn't connect at all.. The socket state remains UnconnectedState.. What am I doing wrong here? Wkr, Nick Gaens ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
