Re: [PyQt] Error building Sip 4.9.1 Snapshots 090929

2009-09-30 Thread Phil Thompson
On Tue, 29 Sep 2009 21:54:47 -0600, Melton Low softw.d...@gmail.com
wrote:
 Error building Sip 4.9.1 Snapshots 090929:
 LittleMac:sip-4.9.1-snapshot-20090929 melton$ python2.6 configure.py
 This is SIP 4.9.1-snapshot-20090929 for Python 2.6.2 on darwin.
 The SIP code generator will be installed in
 /Library/Frameworks/Python.framework/Versions/2.6/bin.
 The SIP module will be installed in

/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages.
 The SIP header file will be installed in
 /Library/Frameworks/Python.framework/Versions/2.6/include/python2.6.
 The default directory to install .sip files in is
 /Library/Frameworks/Python.framework/Versions/2.6/share/sip.
 The platform/compiler configuration is macx-g++.
 Creating sipconfig.py...
 Creating top level Makefile...
 Creating sip code generator Makefile...
 Creating sip module Makefile...
 LittleMac:sip-4.9.1-snapshot-20090929 melton$ make
 cc -c -pipe -Os -w -DNDEBUG -I. -o main.o main.c
 cc -c -pipe -Os -w -DNDEBUG -I. -o transform.o transform.c
 cc -c -pipe -Os -w -DNDEBUG -I. -o gencode.o gencode.c
 cc -c -pipe -Os -w -DNDEBUG -I. -o export.o export.c
 cc -c -pipe -Os -w -DNDEBUG -I. -o heap.o heap.c
 cc -c -pipe -Os -w -DNDEBUG -I. -o parser.o parser.c
 cc -c -pipe -Os -w -DNDEBUG -I. -o lexer.o lexer.c
 c++ -headerpad_max_install_names -o sip main.o transform.o gencode.o
 export.o heap.o parser.o lexer.o
 cc -c -pipe -fPIC -Os -w -DNDEBUG -I.
 -I/Library/Frameworks/Python.framework/Versions/2.6/include/python2.6 -o
 siplib.o siplib.c
 siplib.c: In function ‘sip_api_is_py_method’:
 siplib.c:6062: error: ‘cls’ undeclared (first use in this function)
 siplib.c:6062: error: (Each undeclared identifier is reported only once
 siplib.c:6062: error: for each function it appears in.)
 make[1]: *** [siplib.o] Error 1
 make: *** [all] Error 2
 LittleMac:sip-4.9.1-snapshot-20090929 melton$
 
 Environment:
 Mac OS X 10.5.8 Intel
 Python 2.6.2
 
 Let me know if you need more info.

Whoops - will be fixed tonight.

Thanks,
Phil
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Re: [PyQt] Need a recipe for building

2009-09-30 Thread Phil Thompson
On Tue, 29 Sep 2009 16:52:04 -0600, Brian Brown r...@techgame.net wrote:
 Hello folks!
 
 I'm yet another Snow Leopard user and I'm trying to get 4.6 going (I'm  
 a commercial PyQt user).
 
  From a starting place, I'm confused as to what I should be using.
 
 - The Qt 4.6 technology preview (tp1), or get a particular version  
 from their repository?

PyQt never supports unreleased versions of Qt. The PyQt version number and
the Qt version number are completely unrelated.

 - If you just check out the trunk, it claims to be 4.7 and  
 doesn't work at all
 
 - The 4.9 sip release or current snapshot?
 - The 4.6 PyQt release or current snapshot?
 
 If none of this is supported or possible under snow leopard I would  
 expect to see that on the web site or in a README or something. If  
 there is a method of getting this going, could someone put it on the  
 wiki?
 
 
 I'm trying to build it as 32-bit and so am using arch of i386 - I've  
 read the list archives and seen various suggestions to get this to  
 work, and I've tried many of them. Qt itself builds and works just  
 fine, but I currently get the following with Qt 4.6 tp1, Release 4.6  
 PyQt and Release 4.9 sip.

http://www.riverbankcomputing.com/static/Docs/PyQt4/pyqt4ref.html#configuring-sip-and-pyqt-for-macos-10-6-snow-leopard

Phil
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Re: [PyQt] Need a recipe for building

2009-09-30 Thread Brian Brown


On Sep 30, 2009, at 1:58 AM, Phil Thompson wrote:




http://www.riverbankcomputing.com/static/Docs/PyQt4/pyqt4ref.html#configuring-sip-and-pyqt-for-macos-10-6-snow-leopard



This is exactly what I did to product the error in the first message:

For Sip:
python ./configure.py --arch=i386

For PyQt:
python ./configure.py --use-arch=i386

... which is what is frustrating. This should work, I think.

- Brian




Phil


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[PyQt] How: more images in Graphics View

2009-09-30 Thread p_tierchen

Dear reader,

i recently started to develop an application in python using pyqt4 as my
first project in python. this app when feature complete should allow to
annotate photographic images with year, author, occasion, ...
right now i do some experiments on how to implement certain features. as my
research in the reference and div. other internet platforms did not yield
any usable result i would like to ask you.

one of these tests deals with loading and displaying multiple images in the
program window. is it possible to use QGraphicsScene and QGraphicsView for
this job? I tried to add images as Items to a Scene. but the only thing i
can see is the last image i added (even without list[-1]). I also tried to
use lists of Items, however it is not possible to add such list to a Scene.

The following code is the result of what i got so far:

import sys
from PyQt4 import QtGui, QtCore
from set_widget_pos_graphicslayout import Ui_MainWindow

class StartGui (QtGui.QMainWindow):
def __init__(self, parent=None):
  QtGui.QWidget.__init__(self, parent)
  self.ui = Ui_MainWindow()
  self.ui.setupUi(self)
  self.pixmp=QtGui.QPixmap()
  self.pixitem=QtGui.QGraphicsPixmapItem()
  self.scene=QtGui.QGraphicsScene()
  self.grview=QtGui.QGraphicsView(self.ui.centralwidget)
  self.grali=[]

 
QtCore.QObject.connect(self.ui.loadButton,QtCore.SIGNAL(clicked()),self.addIm)

def addIm(self):
  fileName = QtGui.QFileDialog.getOpenFileName(self,
   Open Image, /home/jos/Fotos, Image Files (*.png *.jpg *.bmp));
  if fileName:
  self.pixmp.load(fileName)
  klbild=self.pixmp.scaledToHeight(200)
  self.pixitem.setPixmap(klbild)
  self.grali.append(self.pixitem)
  self.scene.addItem(self.grali[-1]) # dirty: no progress, just to
have a working code using a  list (i did not want to rewrite the code to get
rid of the list)
  self.grview.setScene(self.scene)
  self.grview.show()


if __name__ == __main__:
app = QtGui.QApplication(sys.argv)
myapp = StartGui()
myapp.show()
sys.exit(app.exec_())

-- end code --

i am looking forward to your advice, many thanks in advance
kind regards
Jo
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[PyQt] Semi-transparent QDrag pixmap

2009-09-30 Thread Jugdish
Is there any way to make the pixmap on a QDrag object be semi-transparent?

Here is the code I've got right now:



def startDrag(self, supportedActions):
drag = QDrag(self)

pixmap = QPixmap(/path/to/my/image.png)
alphaChannel = QPixmap(pixmap.width(), pixmap.height())
alphaChannel.fill(QColor(128, 128, 128))
pixmap.setAlphaChannel(alphaChannel)

drag.setPixmap(pixmap)

drag.exec_(supportedActions)



However, setting the alpha channel on the pixmap just makes it look faded,
but doesn't actually show the window contents underneath the pixmap, so it's
not really transparent.
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Re: [PyQt] How: more images in Graphics View

2009-09-30 Thread Hans-Peter Jansen
Am Mittwoch 30 September 2009 schrieb p_tierchen:
 Dear reader,

 i recently started to develop an application in python using pyqt4 as my
 first project in python. this app when feature complete should allow to
 annotate photographic images with year, author, occasion, ...
 right now i do some experiments on how to implement certain features. as
 my research in the reference and div. other internet platforms did not
 yield any usable result i would like to ask you.

 one of these tests deals with loading and displaying multiple images in
 the program window. is it possible to use QGraphicsScene and
 QGraphicsView for this job? I tried to add images as Items to a Scene.
 but the only thing i can see is the last image i added (even without
 list[-1]). I also tried to use lists of Items, however it is not possible
 to add such list to a Scene.

Well, from a cursory look, you're adding just one QGraphicsPixmapItem() to 
the scene. While I didn't used any QGraphicsView() before, Qt tend to 
attach great importance to parent child relationship, e.g. add  
QGraphicsPixmapItem()s with the view as parent, then this ought to be 
enough to keep your objects alive.

Good luck,
Pete

 The following code is the result of what i got so far:

 import sys
 from PyQt4 import QtGui, QtCore
 from set_widget_pos_graphicslayout import Ui_MainWindow

 class StartGui (QtGui.QMainWindow):
 def __init__(self, parent=None):
   QtGui.QWidget.__init__(self, parent)
   self.ui = Ui_MainWindow()
   self.ui.setupUi(self)
   self.pixmp=QtGui.QPixmap()
   self.pixitem=QtGui.QGraphicsPixmapItem()
   self.scene=QtGui.QGraphicsScene()
   self.grview=QtGui.QGraphicsView(self.ui.centralwidget)
   self.grali=[]


 QtCore.QObject.connect(self.ui.loadButton,QtCore.SIGNAL(clicked()),self
.addIm)

 def addIm(self):
   fileName = QtGui.QFileDialog.getOpenFileName(self,
Open Image, /home/jos/Fotos, Image Files (*.png *.jpg
 *.bmp)); if fileName:
   self.pixmp.load(fileName)
   klbild=self.pixmp.scaledToHeight(200)
   self.pixitem.setPixmap(klbild)
   self.grali.append(self.pixitem)
   self.scene.addItem(self.grali[-1]) # dirty: no progress, just
 to have a working code using a  list (i did not want to rewrite the code
 to get rid of the list)
   self.grview.setScene(self.scene)
   self.grview.show()


 if __name__ == __main__:
 app = QtGui.QApplication(sys.argv)
 myapp = StartGui()
 myapp.show()
 sys.exit(app.exec_())

 -- end code --

 i am looking forward to your advice, many thanks in advance
 kind regards
 Jo


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Re: [PyQt] Need a recipe for building

2009-09-30 Thread Phil Thompson
On Wed, 30 Sep 2009 10:05:40 -0600, Brian Brown r...@techgame.net wrote:
 On Sep 30, 2009, at 1:58 AM, Phil Thompson wrote:



http://www.riverbankcomputing.com/static/Docs/PyQt4/pyqt4ref.html#configuring-sip-and-pyqt-for-macos-10-6-snow-leopard

 
 This is exactly what I did to product the error in the first message:
 
 For Sip:
   python ./configure.py --arch=i386
 
 For PyQt:
   python ./configure.py --use-arch=i386
 
 ... which is what is frustrating. This should work, I think.

And you also said you were using an unsupported version of Qt.

Phil
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Re: [PyQt] Need a recipe for building

2009-09-30 Thread Brian Brown


On Sep 30, 2009, at 1:54 PM, Phil Thompson wrote:




And you also said you were using an unsupported version of Qt.



So PyQT 4.6 is for version 4.5.4 or Qt?

or just the latest stable version of Qt?

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Re: [PyQt] Form/dialog without title bar and actions buttons

2009-09-30 Thread zorze
Hi Pete,
first of all thank you for your anwser.

I'm doing a point of sale in PyQt, one of the goals it to
work in touch screen devices, for my experience with other software 
it can't have minime, maximize, etc. buttons, the title bar is also useless.

You give the clue, I'm following.

Thanks.

Regards,
Jorge

On Monday 28 September 2009 21:42:19 Hans-Peter Jansen wrote:
 Am Montag 28 September 2009 schrieb zorze:
  Hi,
  I'm a newbee in Qt/PyQt but I'm starting to use it.
 
 Welcome to the PyQt wonderlands ;-)
 
  The first problem that I need to solve is how to
  remove the title bar from a Dialog/MainWindow?
 
 Could you be more specific about your goals? Are you really after the 
 effects of killall $WINDOWMANAGER?
 
 Without title bars, users usually cannot resize nor move their windows!
 
 Anyway, programmatically, you can play with QWidget.setWindowFlags(...).
 
 Real fun starts with sticky windows, skipping taskbars and pagers, title 
 bars without close/min/max buttons and the like..
 
 Enjoy,
 Pete
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Re: [PyQt] Need a recipe for building

2009-09-30 Thread Brian Brown


On Sep 30, 2009, at 2:43 PM, Phil Thompson wrote:



For all stable releases of Qt.


Ok, thanks Phil. I was able to install the stable Qt 4.5.2 on Snow  
Leopard by installing the packages individually and not installing  
examples, which is what is breaking their installer on 10.6. Then sip  
and PyQt installed as expected with the arch flags.


Cheers,

- Brian

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Re: [PyQt] Form/dialog without title bar and actions buttons

2009-09-30 Thread Hans-Peter Jansen
Am Mittwoch 30 September 2009 schrieb zorze:
 Hi Pete,
 first of all thank you for your anwser.

 I'm doing a point of sale in PyQt, one of the goals it to
 work in touch screen devices, for my experience with other software
 it can't have minime, maximize, etc. buttons, the title bar is also
 useless.

Ahh, I see.

 You give the clue, I'm following.

Did that already: QWidget.setWindowFlags(...) and also search for 
Qt::WindowFlags in assistant. 

Basically, you flag your windows special and hope, that the windowmanager 
does, what you want.. Since all that is nearly unpossible to predict for 
all permutations of available window managers and possible flags, you need 
to experiment. 

If you can take the woes of window placing yourself, use 
Qt.FramelessWindowHint, otherwise you may want to try combinations of 
various hints with Qt.CustomizeWindowHint.

If you REALLY need more esoteric behavior, I did some hacking with ctypes 
calling into xlibs directly. Hmm, admitted, one cannot get much dirtier, 
even on purpose..

Hth,
Pete


 Thanks.

 Regards,
 Jorge

 On Monday 28 September 2009 21:42:19 Hans-Peter Jansen wrote:
  Am Montag 28 September 2009 schrieb zorze:
   Hi,
   I'm a newbee in Qt/PyQt but I'm starting to use it.
 
  Welcome to the PyQt wonderlands ;-)
 
   The first problem that I need to solve is how to
   remove the title bar from a Dialog/MainWindow?
 
  Could you be more specific about your goals? Are you really after the
  effects of killall $WINDOWMANAGER?
 
  Without title bars, users usually cannot resize nor move their windows!
 
  Anyway, programmatically, you can play with
  QWidget.setWindowFlags(...).
 
  Real fun starts with sticky windows, skipping taskbars and pagers,
  title bars without close/min/max buttons and the like..
 
  Enjoy,
  Pete
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[PyQt] Question regarding single model and multiple views...

2009-09-30 Thread bvz

Hello,

I am new(ish) to PyQt and I am trying to build a simple app.

The app has several tables that I want to point to a single model (which
will load and store all the data).

Each table is responsible for displaying a different set of columns from the
model.  I.e. table 1 will show columns 1-4, table 2 columns 5-11, etc...  
The app does not know how many tables there will be ahead of time, nor does
it know how many columns will be displayed in each table.  Both of these are
set by reading a config file.

I have a version working where I use a QTableWidget and manually sync the
data from the model (not actually a subclass of QAbstractTableModel).  But
there are some issues with this and, anyway, it isn't the correct way of
working as far as I can tell.

I really want to update the app to use the QAbstractTableModel (no
delegates).  I mostly understand the process and am pretty far along with
one exception.  How do I translate the actual column index in the table to
the associated index in the model.  I.e. if the user updates a cell in
column 3 of the 2nd table, that might actually be a bit of data that is in
column 7 of the model.  I need to be able to map the table column to the
model column and vice versa.

So I am wondering, is there some way the table view can send along an offset
every time it tries to send data to or from the model?  If I can get that
info, I can always translate inside the model and return/set the correct
data.

Thanks.
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Re: [PyQt] Question regarding single model and multiple views...

2009-09-30 Thread Matt Newell
On Wednesday 30 September 2009 17:08:40 bvz wrote:
 Hello,

 I am new(ish) to PyQt and I am trying to build a simple app.

 The app has several tables that I want to point to a single model (which
 will load and store all the data).

 Each table is responsible for displaying a different set of columns from
 the model.  I.e. table 1 will show columns 1-4, table 2 columns 5-11,
 etc... The app does not know how many tables there will be ahead of time,
 nor does it know how many columns will be displayed in each table.  Both of
 these are set by reading a config file.

 I have a version working where I use a QTableWidget and manually sync the
 data from the model (not actually a subclass of QAbstractTableModel). 
 But there are some issues with this and, anyway, it isn't the correct way
 of working as far as I can tell.

 I really want to update the app to use the QAbstractTableModel (no
 delegates).  I mostly understand the process and am pretty far along with
 one exception.  How do I translate the actual column index in the table
 to the associated index in the model.  I.e. if the user updates a cell in
 column 3 of the 2nd table, that might actually be a bit of data that is in
 column 7 of the model.  I need to be able to map the table column to the
 model column and vice versa.

 So I am wondering, is there some way the table view can send along an
 offset every time it tries to send data to or from the model?  If I can get
 that info, I can always translate inside the model and return/set the
 correct data.

 Thanks.
The indexes should always match up.  Just use QTableView::setColumnHidden to 
hide the columns that aren't needed for each view.

If for some reason that didn't work it would be somewhat trivial to write a 
wrapper model that simply provides a subset of the real model.  Something 
like QSortFilterProxyModel, only a much simpler implementation as the mapping 
is always a constant operation.

Matt

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[PyQt] GraphicsItem, QObject Inheritance problem

2009-09-30 Thread Jason H
I am working on a hacked PyQt to play with the new animation features. So this 
isn't entirely kosher, however.

I have the following:
class AffineItem(QGraphicsItem):
  def __init__(self, ..., parent):
  QGraphicsItem.__init__(self, parent)

class WrappedAffineItem(QObject, AffineItem):
  def __init__(self ...):
  QObject.__init__(self)
  AffineItem.__init__(self, ..., parent)

The WrappedAffineItem needs to declare properties, so I have to inherit QObject.
Here is the traceback of what I am getting:

Traceback (most recent call last):
i = WrappedAffineTextItem(text, ..., self.items['clipItem'])
  File C:\Qt\PyQt-win-gpl-4.5.2\Plaza.py in __init__
AffineTextItem.__init__(self, '', font, brush, parent)
  File C:\Qt\PyQt-win-gpl-4.5.2\Plaza.py, line 8, in __init__
QGraphicsItem.__init__(self, parent)
TypeError: argument 1 of PyQt4.QtCore.QObject() has an invalid type

Help?
Thanks!


  
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Re: [PyQt] Question regarding single model and multiple views...

2009-09-30 Thread bvz

Thanks for the quick reply.

I was considering that (hiding columns) but that seems really really
inefficient.  There could be as many as 25 tables with 7-8 columns each (but
not much data... rarely more than 20 rows).  Hiding columns would mean a lot
of duplicated info...

scratches head

...unless QT is smart enough not to populate the hidden columns?  That
actually sounds like it could be the case here.  Hmmm.

Your other suggestion to write a wrapper has me a little confused.  My data
model already has the smarts to do all the filtering, it just doesn't know
what table is requesting it. I don't understand how wrapping it in anything
gets me any additional info.

I was considering subClassing QTableView and overriding the setData and data
methods.  But of course that is just a lot of big talk from a small guy... 
I don't know what the implications of doing something like that are.

 

Matt Newell wrote:
 
 On Wednesday 30 September 2009 17:08:40 bvz wrote:
 Hello,

 I am new(ish) to PyQt and I am trying to build a simple app.

 The app has several tables that I want to point to a single model (which
 will load and store all the data).

 Each table is responsible for displaying a different set of columns from
 the model.  I.e. table 1 will show columns 1-4, table 2 columns 5-11,
 etc... The app does not know how many tables there will be ahead of time,
 nor does it know how many columns will be displayed in each table.  Both
 of
 these are set by reading a config file.

 I have a version working where I use a QTableWidget and manually sync the
 data from the model (not actually a subclass of QAbstractTableModel). 
 But there are some issues with this and, anyway, it isn't the correct
 way
 of working as far as I can tell.

 I really want to update the app to use the QAbstractTableModel (no
 delegates).  I mostly understand the process and am pretty far along with
 one exception.  How do I translate the actual column index in the table
 to the associated index in the model.  I.e. if the user updates a cell in
 column 3 of the 2nd table, that might actually be a bit of data that is
 in
 column 7 of the model.  I need to be able to map the table column to the
 model column and vice versa.

 So I am wondering, is there some way the table view can send along an
 offset every time it tries to send data to or from the model?  If I can
 get
 that info, I can always translate inside the model and return/set the
 correct data.

 Thanks.
 The indexes should always match up.  Just use QTableView::setColumnHidden
 to 
 hide the columns that aren't needed for each view.
 
 If for some reason that didn't work it would be somewhat trivial to write
 a 
 wrapper model that simply provides a subset of the real model.  Something 
 like QSortFilterProxyModel, only a much simpler implementation as the
 mapping 
 is always a constant operation.
 
 Matt
 
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Re: [PyQt] Question regarding single model and multiple views...

2009-09-30 Thread Matt Newell
On Wednesday 30 September 2009 18:51:39 bvz wrote:
 Thanks for the quick reply.

 I was considering that (hiding columns) but that seems really really
 inefficient.  There could be as many as 25 tables with 7-8 columns each
 (but not much data... rarely more than 20 rows).  Hiding columns would mean
 a lot of duplicated info...

 scratches head

 ...unless QT is smart enough not to populate the hidden columns?  That
 actually sounds like it could be the case here.  Hmmm.

It's not inefficient at all.  I'm pretty sure that none of the item views in 
qt would be asking for any data from the model for any hidden columns or 
rows.  

No info would be duplicated because the views don't store any data, they 
retrieve the data from the model on demand. 


 Your other suggestion to write a wrapper has me a little confused.  My data
 model already has the smarts to do all the filtering, it just doesn't know
 what table is requesting it. I don't understand how wrapping it in anything
 gets me any additional info.

The wrapper would simply make the existing model appear to only have the 
columns that each view desires.  So you would have an instance per view.  
Since it would only be passing on calls for data after mapping the 
QModelIndex, it wouldn't duplicate data or have much overhead. 

This isn't needed though if you simple need to hide columns, as QTreeView and 
QTableView both support that fine.

That's the very design of those classes, to show what columns you want, in 
what order you want.


Matt
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