Re: [PyQt] Mac OS X Problem: PyQT applications not focusing on launch
hello = HelloWorld() hello.show() hello.raise_() # this will raise the window on Mac OS X sys.exit(app.exec_()) Given it's a Mac-only problem, which wasn't reproducible with Qt, only PyQt, for me it looks like a PyQt bug. But the fix is quite easy. A. On Fri, Sep 25, 2009 at 5:16 PM, Holger Rapp r...@mrt.uka.de wrote: Hi, Every pyqt example I start under Mac OS X (PyQt 4.5.4, Python 2.6 from Python.org, Mac OS X 10.5.8), no matter which (I tried the delivered examples in the source distribution and also the examples from the python book [1], I also tried the eric IDE and spyder) fail to receive the focus when launched. A click is needed to raise the application. Sometimes the newly opened window is hidden under others. I am aware that I have to use pythonw (instead of python) for GUI scripts, but this doesn't change anything. After googling I read that I just have to bundle my scripts in .app packages because the issues is all Apples fault. I feel this is unelegant and most importantly: all wxpython applications RECEIVE the focus when launched (no matter if with python or pythonw), therefore there IS a way to make scripts open up GUI applications with focus. I give code examples for pyqt (no focus) and WXPython (receives focus) below my message. Maybe someone with more insight can shed some light on this problem. [1] http://www.qtrac.eu/pyqtbook.tar.gz Greetings, Holger --- SNIP --- # encoding: utf-8 # wxPython example. This receives focus on launch. # Launch with # $ python hello_world_wx.py # File: hello_world_wx.py import wx app = wx.PySimpleApp() frame = wx.Frame(None, wx.ID_ANY, Hello World) frame.Show(True) app.MainLoop() --- SNAP --- --- SNIP --- # encoding: utf-8 # pyqt example. This DOES NOT receives focus on launch. # Launch with # $ python hello_world_qt.py # or # $ pythonw hello_world_qt.py # Doesn't make a difference on my computer. # File: hello_world_qt.py from PyQt4 import QtCore, QtGui import sys class HelloWorld(QtGui.QWidget): def __init__(self, parent=None): super(HelloWorld, self).__init__(parent) self.setWindowTitle(Hello World) app = QtGui.QApplication(sys.argv) hello = HelloWorld() hello.show() sys.exit(app.exec_()) --- SNAP --- ___ 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] building QfMacNavBar on windows
Anil, I have a Python translation at http://code.google.com/p/cutebookshelf/source/browse/trunk/navbar.py Hope this helps Alexei On Tue, Sep 8, 2009 at 12:59 PM, Anil Kumarani...@gmail.com wrote: Hi, Anybody successfully built QfMacNavBar from http://code.google.com/p/pyqt4- extrawidgets/ on windows? I would like to use it on one of my project, could not compile it. -- -- Regards, Anil K Thankappan ___ 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] Collapse/expand frame
I've done some testing. The majour problem here seems to be QVBoxLayout is sending resizeEvent (or doing something else that sends such event) to all the children widgets that has their own Layouts. And this causes flickering. Anybody can figure out why? A. On Fri, Aug 14, 2009 at 11:50 PM, Hans-Peter Jansenh...@urpla.net wrote: Am Freitag, 14. August 2009 schrieb Alexei Puzikov: Actually, you do, as soon as you'll pass over some amount of controls. I have the editor here that reimplements the screenshot (it's Maya, btw) and in worst situations contains approx. 4500 controls. And I'm still unable to remove flickering on switch - basically, the layout refresh. If anybody can prototype something that works with big amount of controls - his help would be enormous. Really. Hmm, Alexei, please don't feel offended, but presenting 4500 controls to user basically sounds like a pathologic situation, where _concepts_ lost control ;-)... Well, it's probably Friday evening fluctuated my math a little bit - so, in worst case, it's 1500 controls. Which is actually pretty easy to achieve: 2 spacers, label, editor and slider for each parameter. Ahh, okay, we're talking about 500 composite widgets then - which is where things start to get imaginable ;-) How is a user supposed to master that? Something similar to car navigation for the screen? (Take the second branch right, move mouse 200mm north, you reached your target, it's on the left side..) Well, that's what makes my job interesting :) Yes, it's a tough UI stuff. Filtering, proper grouping, good usable search, tagging, good documentation and most of all - good default values :) Even, if that widget, or control, if you like, is implemented in C++, as long as it is resizing itself, flickering cannot be suppressed, since it forces Qt to redraw the whole frame. I would start looking, how to get the whole thing into managable pieces. Next you may try to use a home grown layout manager, that is optimized for these cases (e.g. moves screen areas, but that's going to be tough, don't it?) I'm not sure. What actually bugs me is that layout engine is repainting the widgets that's haven't changed their geometry. Given how many layouts I have, this flickers You think this might be overwritten?... What I had in mind was a layout manager, that's being aware of the situation: repaint only small screen areas (the widget, that is resizing itself), and copying the unchanged screen areas around, its doable but that's going to be a tough job, I assume. Pete ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Collapse/expand frame
Actually, you do, as soon as you'll pass over some amount of controls. I have the editor here that reimplements the screenshot (it's Maya, btw) and in worst situations contains approx. 4500 controls. And I'm still unable to remove flickering on switch - basically, the layout refresh. If anybody can prototype something that works with big amount of controls - his help would be enormous. Really. Hmm, Alexei, please don't feel offended, but presenting 4500 controls to user basically sounds like a pathologic situation, where _concepts_ lost control ;-)... Well, it's probably Friday evening fluctuated my math a little bit - so, in worst case, it's 1500 controls. Which is actually pretty easy to achieve: 2 spacers, label, editor and slider for each parameter. How is a user supposed to master that? Something similar to car navigation for the screen? (Take the second branch right, move mouse 200mm north, you reached your target, it's on the left side..) Well, that's what makes my job interesting :) Yes, it's a tough UI stuff. Filtering, proper grouping, good usable search, tagging, good documentation and most of all - good default values :) Even, if that widget, or control, if you like, is implemented in C++, as long as it is resizing itself, flickering cannot be suppressed, since it forces Qt to redraw the whole frame. I would start looking, how to get the whole thing into managable pieces. Next you may try to use a home grown layout manager, that is optimized for these cases (e.g. moves screen areas, but that's going to be tough, don't it?) I'm not sure. What actually bugs me is that layout engine is repainting the widgets that's haven't changed their geometry. Given how many layouts I have, this flickers You think this might be overwritten?... A. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Collapse/expand frame
Well - have you tried to do that with 1500 controls? A. On Fri, Aug 14, 2009 at 9:24 AM, Håvard Gulldahlhav...@lurtgjort.no wrote: On Thu, Aug 13, 2009 at 7:51 PM, Scott Ballardsc...@scottballard.net wrote: I'm really looking for a frame that has the collapse/expand ability built into it. See the image in the link. You can see the Texture Map submenu collapsed/expanded. Any thoughts? www.scottballard.net/collapsibleFrame.jpg I've done something similar, sans the arrow. I have a checkable QGroupBox, whose sole child is a QFrame with no borders. All the widgets I put into the QFrame. Then I connect the toggled(bool) signal of the group box to the frame's setShown(bool) slot. That way, the QFrame is hidden when the QGroupBox is un-checked. And you can do it all from the Qt Designer: less hand-written code, yay! Originally I meant to figure out how to customize the QGroupBox so that it has an arrow (like in the example you're referencing) and not a cross, but it's not high on the list. The check box works fine, IMO. Cheers, Håvard Many thanks! -Scott Hans-Peter Jansen wrote: Am Mittwoch, 12. August 2009 schrieb Scott Ballard: Does anyone know of a way to collapse/expand a frame or a group box that contains widgets in it? I don't see anything in the docs or Google about it, but it would seem like something common. Try .hide()/.show() resp. .setVisible(bool) Pete ___ PyQt mailing list p...@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt __ Information from ESET NOD32 Antivirus, version of virus signature database 4330 (20090812) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __ Information from ESET NOD32 Antivirus, version of virus signature database 4332 (20090813) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ___ PyQt mailing list p...@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt -- Håvard Gulldahl hav...@gulldahl.no Telefon: 9971 0615 http://lurtgjort.no/ ___ PyQt mailing list p...@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Collapse/expand frame
I'm really looking for a frame that has the collapse/expand ability built into it. See the image in the link. You can see the Texture Map submenu collapsed/expanded. Any thoughts? www.scottballard.net/collapsibleFrame.jpg I see - why don't you BYO. This kind of widget is uncommon, and thus the reason not being available already. But it's pretty easy to combine basic widgets to a composite one. And due to Qts powerful layout machinery, you mostly don't need to care about the implicit widget resize. Actually, you do, as soon as you'll pass over some amount of controls. I have the editor here that reimplements the screenshot (it's Maya, btw) and in worst situations contains approx. 4500 controls. And I'm still unable to remove flickering on switch - basically, the layout refresh. If anybody can prototype something that works with big amount of controls - his help would be enormous. Really. A. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] Soft-hyphen (SHY) support in QtWebkit embedded into PyQt app
Hello, I'm loading http://www.cs.tut.fi/~jkorpela/shytest.html into the QWebView, and it does break up the words correctly, but doesn't show the actual hyphens at the right margin of the text. It's even worse for Russian language texts - it actually break the words that's in the middle of paragraph, not at the hyphenation border. And again - no hyphens visible. The tests are OK in standalone Safari, Konqueror and FF3. Reproducible with PyQt under Qt 4.4 and Qt 4.5. Anybody can advise? Cheers, Alexei ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] PyQt application appears always in the background
This seems to be something with PyQt, because C++ Qt applications don't have this problem. What helps with the situation is: window.show() window.raise_() Cheers, Alexei On Thu, Jun 11, 2009 at 6:26 PM, Michael Heldmichael.h...@bc.biol.ethz.ch wrote: hi, my PyQt application appears always in the background (the last window in the stack of all Mac applications) which is annoying since I want so see my app on top of all other windows. is there any PyQt or system option? I am running PyQt4.5 + Python2.6 on MacOS 10.5. thanks a lot! michael ___ PyQt mailing list p...@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] node graph widgets?
Nothing standard, however it's actually pretty easy to implement either with GraphicsScene or OpenGL surface. Latter is exactly what I've did. Alexei Does anyone know if Qt (PyQt) offer any widgets for creating a node graph with connections between the nodes? A quick Google search didn't turn up much. Thanks, -Scott ___ PyQt mailing list p...@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] Transparent QTreeWidget over the QtOpenGL.QGLWidget
Hello, The question seems to be simple, but I've spent some time experimenting and reading docs already without good results. So. I have QGLWidget in my window and QTreeWidget is parented to it. Now what I want is for QTreeWidget background to become transparent so that I'll be able to see my GL stuff and tree items painted over it. What I'm getting instead is either standard background or just black color. Any ideas? Thanks in advance, Alexei ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] QWidget event == no more GC for QWidget?
Hello, Quick question: if I uncomment the moveEvent in the code below, the destructor isn't called anymore. I suspect I'm doing something wrong or missing something - anybody can clear the things up? I'm on Python 2.5.1 (r251:54863, Jun 25 2008, 10:21:16) [GCC 4.0.3 (Ubuntu 4.0.3-1ubuntu5)] on linux2 QtCore.PYQT_VERSION_STR '4.3.3' Thanks Alexei # import sys from PyQt4 import QtCore, QtGui class Window(QtGui.QWidget): def __init__(self, selectedShader = None): QtGui.QWidget.__init__(self, None) #self.setAttribute(QtCore.Qt.WA_DeleteOnClose) self.resize(QtCore.QSize(QtCore.QRect(0,0,400,300).size()).expandedTo(self.minimumSizeHint())) def __del__(self): print Window destructor called #def moveEvent(self, event): #print move app = QtGui.QApplication(sys.argv) window = Window() window.show() app.exec_() ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
