Ulrich,
Try pqsheet--I think it is a stalled project but it may have what you need.
Brian
--- On Thu, 5/22/08, ulrichD <[EMAIL PROTECTED]> wrote:
From: ulrichD <[EMAIL PROTECTED]>
Subject: [PyQt] beginner, array setdata, write back
To: [email protected]
Date: Thursday, May 22, 2008, 9:32 AM
I'm a novice to pyqt and search for something so basic, it's
embarrassing.
Unfortunately I still couldn't find any answer in the net (probably
don't
even know what to search for)
(in addition i hope I know dontt post twice now, the first time I got an
mail saying it was rejected)
I simply want a gui to show me the content of an numpy array. When I change
a value in the gui, i want this
to be written back into the array.
I tried something like:
XXXXXXXXXXXXXXXXXXXXXXXXXX
from __future__ import division
import sys
from math import *
from PyQt4.QtCore import *
from PyQt4 import QtCore
from PyQt4.QtGui import *
class sheet(QDialog): #By inheriting QDialog we get a blank form, that is,
a gray rectangle, and some convenient behaviors and methods
def __init__(self, arr, parent=None): #A widget that has no parent
becomes a top-level window
QWidget.__init__(self)
tablemodel = MyTableModel(arr, self)
self.tabmod=tablemodel
tableview = QTableView()
tableview.setModel(tablemodel)
layout = QVBoxLayout(self)
layout.addWidget(tableview)
self.setLayout(layout)
class MyTableModel(QAbstractTableModel):
def __init__(self, datain, parent=None):
QAbstractTableModel.__init__(self, parent)
self.arraydata = datain
def rowCount(self, parent):
return len(self.arraydata)
def columnCount(self, parent):
return len(self.arraydata[0])
def data(self, index, role):
if not index.isValid():
return QVariant()
elif role != Qt.DisplayRole:
return QVariant()
return QVariant(self.arraydata[index.row()][index.column()])
def isEditable(self, index):
""" Return true if the index is editable.
"""
return True
def flags(self, index): #function is called to chaeck if itmes are
changable etc, index is a PyQt4.QtCore.QModelIndex object
if not index.isValid():
return QtCore.Qt.ItemIsEnabled
ret_flags = QtCore.Qt.ItemIsSelectable |
QtCore.QAbstractItemModel.flags(self,
index)
if self.isEditable(index):
#print index.row() #returns the selected elements row
#print index.column()
ret_flags = ret_flags | QtCore.Qt.ItemIsEditable
return ret_flags
def setData(self, index, value, role):
""" if a item is edited, this command is called
value.toString() constains the new value
cahnge here to have it evaluate stuff!"""
self.arraydata[index.row(),index.column()]=value.toString()
#<<<<<<<<<<< the problem (i think)
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if this file is called ugui.py, it hem run it from the shell with
import ugui
arr=rand(3,3)
form = ugui.sheet(arr)
form.show()
I think I encounter two problems: I access the newly entered data
incorrectely and there seems to be a variable type issue.
Maybe someone can help me out
here?
--
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