If you ask me personally, I wouldn't use QTableWidget. Look into
QTreeView or QListWidget.
I think they are more suitable for such tasks and are easier to
handle.
With QTreeView you can use QItemDelegate, to create a special
rendering.
With QListWidget you can simply add a widget per row and inside
the widget you can put whatever.
ATM I'm in the middle of a 2000 km road trip so I can't rally
provide you sample's, but if you need help next week I'm glad to
give you samples how to use these widgets.
Cheers,
Tibold Kandrai
*From:* Frank Rueter | OHUfx
*Sent:* ?Saturday?, ?12? ?October? ?2013 ?22?:?49
*To:* Tibold Kandrai
*Cc:* [email protected]
Is this the best way to do it though? I.e. having one item per
cell? s there another way at all?
I'm still a bit lost in the model/view design and can't find the
answer online.
I'm simply trying to have each row represent a "task" with a
title/description (string), a status (boolean) and a priority
(integer). For the integer I need a spin box and for the boolean
I need a checkbox. The examples I found online all seem to be
doing something slightly different and often use different ways
which makes matters more confusing.
Here is what I have at the moment:
http://pastebin.com/H3GD0xVB
The "status" and "priority" values don't display currnelty as I
haven't figured out how to properly assign a delegate to just
those cells. At the top I tried to define a n item delegete for a
spin box but I'm not sure how to properly assign it.
Do I have to make the delegate draw different widgets (spin box /
checkbox) depending on data type, or can/should I use a different
delegate for each cell?
I'm sure the answer is right in front of me, could you please
help one more time please?!
Cheers,
frank
On 11/10/13 4:00 PM, Tibold Kandrai wrote:
If you mean to use a QStandardItem per cell then yes.
Also for storing values that you want to display, use the
Qt.DisplayRole as role.
Cheers,
Tibold Kandrai
------------------------------------------------------------------------
From: Frank Rueter | OHUfx <mailto:[email protected]>
Sent: ?11/?10/?2013 14:35
To: Tibold Kandrai <mailto:[email protected]>
Cc: [email protected] <mailto:[email protected]>
Subject: Re: [PySide] simple QTableView example
one more silly question if I may:
So if I have a task like this:
newTask = {'title':'new task', 'priority':1,
'status':False}
and need to store the data in one row in the model I should
use three different items, one for each value, right?!
e.g.:
newTask = {'title':'new task', 'priority':1,
'status':False}
row = self.model.rowCount()
for column, attr in enumerate(['title', 'priority',
'status']):
newItem = QtGui.QStandardItem(newTask[attr])
self.model.setItem(row, column, newItem)
then juggle delegates or widgets to use a spin box for the
integer and a checkbox for the boolean...
Thanks for the help!
Cheers,
frank
On 10/10/13 11:44 PM, Tibold Kandrai wrote:
Hey,
I'm not sure I understand the problem correctly.
If you want to store data in a cell or a QStandardItem,
then you need to use setData() and data().
Generally you shouldn't need to subclass QStandardItem or
QStandardItemModel.
Here is an example how:
# Define roles
FINISHED_ROLE = QtCore.Qt.UserRole + 1
PRIORITY_ROLE = QtCore.Qt.UserRole + 2
# Create model
model = QtGui.QStandardItemModel()
item = QtGui.QStandarItem()
model.appendRow(item)
item_index = item.index()
# Store data using the item
item.setData(finished, FINISHED_ROLE)
item.setData(priority, PRIORITY_ROLE)
# Store data using the model
model.setData(item_index, finished, FINISHED_ROLE)
model.setData(item_index, priority, PRIORITY_ROLE)
# Retrieve data using the item
finished = item.data(FINISHED_ROLE)
priority = item.data(PRIORITY_ROLE)
# Retrieve data using the model
finished = model.data(item_index, FINISHED_ROLE)
priority = model.data(item_index, PRIORITY_ROLE)
In some cases like click event handlers, you have the
model and the item index, there it's easier to use the
model methods instead of finding the item and then
getting the data. ?
Hope it helps.
Cheers,
Tibold
*From:* Frank Rueter | OHUfx
*Sent:* ?2013? ?October? ?10?, ?Thursday ?19?:?37
*To:* [email protected]
After looking at some more examples I think my approach
of storing multiple values in one item is fundamentally
flawed.
Instead I should be using one item per cell and assign
the respective data, right?!
I shall re-write the example accordingly, sorry for the
noise.
frank
On 10/10/13 6:34 PM, Frank Rueter | OHUfx wrote:
I meant QTableView not QStandardTableView :/
On 10/10/13 6:33 PM, Frank Rueter | OHUfx wrote:
Hi all,
after a bit of a break from PySide I am trying to
wrap my head around the model/view stuff again
and am trying to understand how a very simple
example would work where a QStandarItem has
properties "title", "priority" and "finished"
which are displayed via a QStandardTableView.
I am struggling with understanding how to
properly display the above three properties in
the table's columns. I tried setting the data()
method on the model like this:
/ def data(self, index,
role=QtCore.Qt.DisplayRole)://
// '''Return data based on index and role'''//
// item = self.itemFromIndex(index)//
// if index.column() == 0://
// return item.title//
// elif index.column() == 1://
// return item.finished//
// elif index.column() == 2://
// return item.priority/
but for some reason it errors saying item does
not have attribute "finished" even though my item
object s declared like this:
/class TaskItem(QtGui.QStandardItem)://
// '''Item to hold a task for the todo list'''//
////
// def __init__(self, title, finished=False,
priority=1)://
// super(TaskItem, self).__init__(title)//
// self.title = title//
// self.finished = finished//
// self.priority = priority/
When printing the item's attributes via dir() I
see that, when the model is populated, the last
item it attempts to call is not my custom item
object, but something else with less attributes
and methods. Clearly there is something I haven't
quite understood about this process.
Also, if I use the models data() method as
pointed out above, I get checkboxes in the cells
which I don't want at this stage.
Can somebody please help me understand where I go
wrong?
Attached is the whole test code.
Cheers,
frank
P.S.: I am aware that the controller code
shouldn't necessarily live in the QWidget's
methods, this is just for testing which I will
clean up once I get how it all connects again
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