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List:       pykde
Subject:    [PyQt] QTableWidget.selectRow() not always highlighting selected
From:       Kerri Reno <kreno () yumaed ! org>
Date:       2009-06-30 20:12:32
Message-ID: a5b8c7860906301312h2a84f0dbi57005ef33faca387 () mail ! gmail ! com
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Attached is a reproducible example of my problem.  It simulates a table with
10 existing rows, and the user has clicked on an 'Add New' button (not
shown).  The UI added a new line to the table.  If I then click on a
different line, the UI asks if I want to abort my add.  When I say 'No', the
code does a selectRow, to get back to the newly added row, but the row that
I clicked on still shows as highlighted, even though currentRow shows the
last, newly added row.  I believe the newly added row should now be
highlighted, but I can't seem to make that happen.

I hope this makes sense.  I know it's a bit convoluted, but hopefully when
you run the app it will make more sense.

Is this a bug?  Or am I missing something?  Anything you can do to help
would be sincerely appreciated.

TIA,
Kerri

-- 
Yuma Educational Computer Consortium
Compass Development Team
Kerri Reno
kreno@yumaed.org      (928) 502-4240
.·:*¨¨*:·.   .·:*¨¨*:·.   .·:*¨¨*:·.

[Attachment #5 (text/html)]

Attached is a reproducible example of my problem.  It simulates a table with 10 \
existing rows, and the user has clicked on an &#39;Add New&#39; button (not shown).  \
The UI added a new line to the table.  If I then click on a different line, the UI \
asks if I want to abort my add.  When I say &#39;No&#39;, the code does a selectRow, \
to get back to the newly added row, but the row that I clicked on still shows as \
highlighted, even though currentRow shows the last, newly added row.  I believe the \
newly added row should now be highlighted, but I can&#39;t seem to make that \
happen.<br> <br>I hope this makes sense.  I know it&#39;s a bit convoluted, but \
hopefully when you run the app it will make more sense.  <br><br>Is this a bug?  Or \
am I missing something?  Anything you can do to help would be sincerely \
appreciated.<br> <br>TIA,<br>Kerri<br><br>-- <br>Yuma Educational Computer \
Consortium<br>Compass Development Team<br>Kerri Reno<br><a \
href="mailto:kreno@yumaed.org">kreno@yumaed.org</a>      (928) 502-4240<br>.·:*¨¨*:·. \
.·:*¨¨*:·.   .·:*¨¨*:·.<br>


--0022152d6531456cce046d966df6--


["test.py" (text/x-python)]

import sys
from PyQt4.QtCore import *
from PyQt4.QtGui import *


class testUI(QMainWindow):

	def __init__(self, parent = None):
		QMainWindow.__init__(self,parent)   
		self.resize(QSize(QRect(0,0,506,445).size()).expandedTo(self.minimumSizeHint()))
		self.centralwidget = QWidget(self)
		self.hboxlayout = QHBoxLayout(self.centralwidget)
		self.tableWidget = QTableWidget(self.centralwidget)
		self.tableWidget.setSelectionMode(QAbstractItemView.SingleSelection)
		self.tableWidget.setSelectionBehavior(QAbstractItemView.SelectRows)
		self.tableWidget.setObjectName("tableWidget")
		self.hboxlayout.addWidget(self.tableWidget)
		self.setCentralWidget(self.centralwidget)

		self.tableWidget.clear()
		self.tableWidget.setColumnCount(3)
		self.tableWidget.setRowCount(0)

		self.restoringRow = False
		vheader = self.tableWidget.verticalHeader()
		vheader.hide()
		
		for count in xrange(10):
			row = self.tableWidget.rowCount()
			self.tableWidget.insertRow(row)
			self.tableWidget.selectRow(row)
			self.tableWidget.setRowHeight(row,22)
			item = QTableWidgetItem(str(count))
			self.tableWidget.setItem(row,0,item)
			item = QTableWidgetItem('Line %s' % count)
			self.tableWidget.setItem(row,1,item)
			item = QTableWidgetItem('True')
			self.tableWidget.setItem(row,2,item)
			
		
		self.connect(self.tableWidget,
			SIGNAL('currentCellChanged(int,int,int,int)'),
			self.newLineSelected)
		self.show()
		self.addNew()

	def addNew(self):
		row = self.tableWidget.rowCount()
		self.tableWidget.insertRow(row)
		self.tableWidget.selectRow(row)
		self.tableWidget.setRowHeight(row,22)
		
		item = QTableWidgetItem('---')
		item.setData(Qt.UserRole,QVariant(-1))
		self.tableWidget.setItem(row,0,item)

		item = QTableWidgetItem('<<New Line Add in Progress>>')
		item.setData(Qt.UserRole,QVariant(-1))
		self.tableWidget.setItem(row,1,item)
		
		item = QTableWidgetItem('---')
		item.setData(Qt.UserRole,QVariant(-1))
		self.tableWidget.setItem(row,2,item)

		self.tableWidget.resizeColumnsToContents()	
		self.addingNewLine = True


	def newLineSelected(self,row,col,orow,ocol):
		if self.restoringRow:
			self.restoringRow = False
			return
			
		if row == orow or self.tableWidget.item(row,0) == None:
			return

		if self.addingNewLine:
			msgBox = QMessageBox(QMessageBox.NoIcon,
						'Testing',
						'You have begun a New Line\n' \
						'Do you want to Abort this action?',
						QMessageBox.Yes| QMessageBox.No)
			response = msgBox.exec_()
			if response == QMessageBox.No:
				self.restoringRow = True
				print 'selecting row %s' % orow
				self.tableWidget.selectRow(orow)
				return		
			
			self.addingNewLine = False
		
		


if __name__ == '__main__':
	app = QApplication(sys.argv)
	win = testUI()
	win.show()
	app.exec_()



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