On Wednesday 02 February 2005 06:31, Jim Bublitz wrote:
> On Tuesday 01 February 2005 18:44, Steve Taetzsch wrote:
>
> I've rewritten this once or twice and it still seems clear as mud,
> so please don't hesitate to ask for clarification. I don't have any
> sample code available that would be useful.
I created a small test app a few days back, it may provide as a usable
starting point.
Phil: assimilate it, if you want..
Cheers,
Pete
#! /usr/bin/env python
#
# show validating int, float, date QTable items
#
# 2005-01-23 initial version hp
import sys
from types import IntType, FloatType
from qt import *
from qttable import *
class TableItem(QTableItem):
def __init__(self, table, et, text = ""):
self.warnColor = QColor(230,124,127)
QTableItem.__init__(self, table, et, text)
def paint(self, p, cg, cr, selected):
g = QColorGroup(cg)
warn = False
col = self.col()
value = self.value()
if col == 0:
# date column
if value != None and value < QDate.currentDate():
warn = True
else:
# int or float column
if value < 0:
warn = True
if warn:
g.setColor(QColorGroup.Base, self.warnColor)
QTableItem.paint(self, p, g, cr, selected)
class IntTableItem(TableItem):
def __init__(self, table, value = None, bottom = None, top = None):
self.top = top
self.bottom = bottom
TableItem.__init__(self, table, QTableItem.OnTyping)
if value != None:
self.setValue(value)
# we do not want this item to be replaced
self.setReplaceable(False)
def value(self):
return self.text().toInt()[0]
def setValue(self, value):
assert(type(value) == IntType)
if self.bottom != None and value < self.bottom:
value = int(self.bottom)
if self.top != None and value > self.top:
value = int(self.top)
self.setText(str(value))
def createEditor(self):
le = QLineEdit(self.text(), self.table().viewport())
ival = QIntValidator(le)
if self.bottom != None:
ival.setBottom(self.bottom)
if self.top != None:
ival.setTop(self.top)
le.setValidator(ival)
return le
def setContentFromEditor(self, w):
self.setValue(w.text().toInt()[0])
class FloatTableItem(TableItem):
def __init__(self, table, value = None, bottom = None, top = None, decimals = None):
self.decimals = decimals
self.top = top
self.bottom = bottom
TableItem.__init__(self, table, QTableItem.OnTyping)
if value != None:
self.setValue(value)
# we do not want this item to be replaced
self.setReplaceable(False)
def value(self):
return self.text().toDouble()[0]
def setValue(self, value):
assert(type(value) in (IntType, FloatType))
if self.bottom != None and value < self.bottom:
value = float(self.bottom)
if self.top != None and value > self.top:
value = float(self.top)
if self.decimals != None:
self.setText("%.*f" % (self.decimals, value))
else:
self.setText(str(value))
def createEditor(self):
le = QLineEdit(self.text(), self.table().viewport())
dval = QDoubleValidator(le)
if self.bottom != None:
dval.setBottom(self.bottom)
if self.top != None:
dval.setTop(self.top)
if self.decimals != None:
dval.setDecimals(self.decimals)
le.setValidator(dval)
return le
def setContentFromEditor(self, w):
self.setValue(w.text().toDouble()[0])
class DateTableItem(TableItem):
def __init__(self, table, date = None):
self.format = Qt.LocalDate
TableItem.__init__(self, table, QTableItem.OnTyping)
self.setValue(date)
self._de = None
# we do not want this item to be replaced
self.setReplaceable(False)
def value(self):
return self.date
def setValue(self, date):
if date != None and date.isValid():
self.date = date
value = date.toString(self.format)
else:
self.date = None
value = ""
self.setText(value)
def createEditor(self):
date = self.value()
if date != None and date.isValid():
date = date.fromString(self.format)
else:
date = QDate.currentDate()
self._de = QDateEdit(date, self.table().viewport())
self._de.setAutoAdvance(True)
return self._de
def setContentFromEditor(self, w):
# the user changed the value in the dateedit, so synchronize the
# value of the item (its text), with the value of the dateedit
if w.inherits("QDateEdit"):
self.setValue(w.date())
#self.setText(w.date().toString(self.format))
else:
TableItem.setContentFromEditor(self, w)
if __name__ == '__main__':
ROWS = 10
COLS = 3
TOP = 99999
BOTTOM = -99999
DECIMALS = 3
app = QApplication(sys.argv)
t = QTable(ROWS, COLS)
h = t.horizontalHeader()
h.setLabel(0, "Date Editor")
h.setLabel(1, "Int Validator")
h.setLabel(2, "Float Validator")
for i in range(ROWS):
item = DateTableItem(t)
t.setItem(i, 0, item)
item = IntTableItem(t, i, BOTTOM, TOP)
t.setItem(i, 1, item)
item = FloatTableItem(t, i, BOTTOM, TOP, DECIMALS)
t.setItem(i, 2, item)
t.resize(t.sizeHint())
t.show()
app.setMainWidget(t)
app.exec_loop()
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