Language Bindings

Hello all,
The problem has morphed again.

Question: Where should I look for generatorrunner on Win7? Should a pointer to it come back from PySideConfig.cmake?

Details:

From the Qt SDK I had both 4.8.0 and 4.8.1 libs installed and this was causing an issue, so I now have just the 4.8.0 MSVC 2008 environment.
Now the error relates to

@CMake Error at CMakeLists.txt:14 (message):
You need to specify GENERATOR variable (-DGENERATOR=value)@

It seems that generatorrunner is a command that you can run in a linux terminal, but I have no path to it on Win7. I think it should be part of pyside distribution, but I have found no files named generatorrunner on my whole Win7 drive.

The message arises here in the CMakeLists.txt provided with the tutorial.
@
find_program(GENERATOR generatorrunner REQUIRED)
if (NOT GENERATOR)
message(FATAL_ERROR "You need to specify GENERATOR variable (-DGENERATOR=value)")
endif()
@

apt-file search generatorrunner on linux gives
shiboken: /usr/lib/i386-linux-gnu/generatorrunner/shiboken.so

My Win7 build strategy for the binding tutorial is to launch a bare console then run:
@
CALL "C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\vcvarsall.bat" x86
set QTDIR=C:\QtSDK\Desktop\Qt\4.8.0\msvc2008
set PATH=%QTDIR%\bin;C:\QtSDK\QtCreator\bin;%PATH%
set QMAKESPEC=win32-msvc2008
set BINDFOO=C:\binding-tutorial\

set Shiboken_DIR=.
set PySide_DIR=.

cd %BINDFOO%\libfoo
qmake
nmake

cd %BINDFOO%\foobinding-cmake\build
C:\CMake28\bin\cmake.exe ..
@

Thanks for any suggestions.

Owen

This function correctly fetches row and column numbers from the model, through a proxy:

@def clickedSlot(self, modelIndex):
model = modelIndex.model()
if hasattr(model, 'mapToSource'):
# We are a proxy model
modelIndex = model.mapToSource(modelIndex)
print modelIndex.row(), modelIndex.column()@

Hi,

I can confirm it :) . Your code does not work here with PySide. Shame.

I'll contact the PySide guys.

Thanks for your efforts :)

Hi Olivier,

I don't know if you managed to solve this already but if not I think the following example should do what you need. I wrote it for a project of my own with similar requirements and uses a custom QWidget with mouse events rather than a table or checkboxes. You can use the value() and setValue() functions to get and set the value programatically or click on the individual bits to toggle there values. Hope you find it useful, here goes:

@
from PyQt4.QtCore import *
from PyQt4.QtGui import *

class BitWidget(QWidget):
def init(self, num_of_bits, parent=None):
QWidget.init(self, parent)

self.num_of_bits=num_of_bits self.data=[0 for b in range(num_of_bits)] self.data[1]=1 self.box_size=30 self.font=QFont('Serif', 12, QFont.Light) def setBoxSize(self, size): self.box_size=size def setFont(self, font): self.font=font def sizeHint(self): return QSize(self.num_of_bits*self.box_size, self.box_size) def paintEvent(self, event): painter=QPainter() painter.begin(self) painter.setFont(self.font) size=self.size() width=size.width()-1 height=size.height()-1 for i,v in enumerate(self.data): painter.fillRect(i*self.box_size, 0, self.box_size, self.box_size, Qt.green if self.data[i] else Qt.red) painter.drawLine(i*self.box_size, 0, i*self.box_size, height) valueString="%d" % i fontWidth=painter.fontMetrics().width(valueString) fontHeight=painter.fontMetrics().height() painter.drawText((i*self.box_size)-(fontWidth/2)+(self.box_size/2), (self.box_size/2)+(fontHeight/2), valueString) painter.setPen(Qt.black) painter.drawRect(0, 0, width, height) painter.end() def mousePressEvent(self, event): b=event.pos().x()//self.box_size self.data[b]^=1 self.repaint() event.accept() def value(self): value=0 mask=1 for i,v in enumerate(self.data): if v: value|=mask mask<<=1 return value def setValue(self, value): mask=1 for i,v in enumerate(self.data): self.data[i]=(value&mask)>>i mask<<=1 self.repaint()

class Widget(QWidget):
def init(self, parent=None):
QWidget.init(self, parent)

QVBoxLayout(self) self.bitWidget=BitWidget(16, self) self.layout().addWidget(self.bitWidget) valueButton=QPushButton("Value", self) valueButton.clicked.connect(self.printValue) self.layout().addWidget(valueButton) self.valueSpinBox=QSpinBox(self) self.valueSpinBox.setRange(0, 2**16) self.layout().addWidget(self.valueSpinBox) setValueButton=QPushButton("Set Value", self) setValueButton.clicked.connect(self.setValue) self.layout().addWidget(setValueButton) def printValue(self): print "Value:", self.bitWidget.value() def setValue(self): self.bitWidget.setValue(self.valueSpinBox.value())

if name=="main":
from sys import argv, exit
a=QApplication(argv)
w=Widget()
w.show()
exit(a.exec_())
@

It should look something like this:

!http://s15.postimage.org/r3nwtauor/bitwidget.png(BitWidget Screenshot)!

Feel free to ask any questions, hope it helps.

Rob

Thanks again, jazzycamel!!! :)

Thanks so much for the reply/answer :) It works!!!

Using QSqlQueryModel solved my problem.

Sample code which shows my solution:

@def clickedSlot(self,index):
rownumber = index.row()
colnumber = index.column()
self.model = QSqlQueryModel(self)

self.model.setQuery("SELECT * FROM cases") tempname = self.model.data(self.model.index(rownumber, 1)) templastname = self.model.data(self.model.index(rownumber, 2)) fullname = tempname + ' '+ templastname print(fullname) #prints the result to the console.@

Thank you for your observation and general promptness to answer my question. In the future, I will translate my code to English for forums ;) In general, I find my native language (Serbian) more descriptive, and it helps me distinguish "code" from "object names".

Great, thanks for reporting back with your solution!

Solved it :)

Code for anyone who needs it in the future:

@parent.setAttribute(QtCore.Qt.WA_DeleteOnClose)@

Well. I'm sorry, but this problem isn't related to bindings - small portions of code should be understandable for C++ Qt programmer. I thought this issue would suit better to General & Desktop...

Please help.

This is not a problem with the Python binding. I only wrote it in python because the code is smaller. If you translate it in C++ you get the same efffect.

Solved it myself :)

Here is the python code for anyone who needs it in the future:

@brush = QtGui.QBrush()
color = QtGui.QColor(R, G, B) # insert RGB values
brush.setColor(color)
treeItem.setForeground(0, brush)@

hope it helps!!

You should override flags() method from QAbstractItemModel.
@
Qt::ItemFlags Model::flags(const QModelIndex &index) const
{
Qt::ItemFlags defaultFlags = QAbstractItemModel::flags(index);

if (index.isValid()) return Qt::ItemIsEditable | defaultFlags; else return defaultFlags;

}@

Sorry for c++ code))