Hi all,
I am trying to fill a QStandardItemModel with QStandardItems that contain
custom data. Unfortunately I came across a similar outcome as before when I had
tried to use a Custom Delegate (see my previous mails "QItemDelegate for
*non-primitives* using QComboBox"): There is trouble with non-Qt objects.
It seems you have to create a new instance of QStandardItem every time the
content of your model changes. Is that the very same bug as before or a new
issue?
My system runs with JRE 1.6.0, Jambi 4.4, and Windows XP.
The following is a very small sample program that shows what I mean.
import java.awt.Point;
import com.trolltech.qt.core.Qt;
import com.trolltech.qt.gui.QApplication;
import com.trolltech.qt.gui.QStandardItem;
public class SetDataSample
{
public static void main(String args[])
{
QApplication.initialize(args);
SetDataSample sample = new SetDataSample();
QApplication.exec();
}
public SetDataSample()
{
Point point1 = new Point(1,1);
Point point2 = new Point(2,2);
Integer int3 = new Integer(3); // Qt seems to be able to cast Integer
into something it understands
// Round 1
QStandardItem item = new QStandardItem();
item.setData(point1, Qt.ItemDataRole.UserRole);
Object debug1 = item.data(Qt.ItemDataRole.UserRole);
System.out.println(debug1); //
success: "java.awt.Point[x=1,y=1]"
// Round 2
item.setData(point2, Qt.ItemDataRole.UserRole); //
trying to change the data
Object debug2 = item.data(Qt.ItemDataRole.UserRole);
System.out.println(debug2); //
failure: "java.awt.Point[x=1,y=1]" instead of "java.awt.Point[x=2,y=2]"
// Round 3 - this time with Integer (Qt seems to be able to cast that
into something it understands)
item.setData(int3, Qt.ItemDataRole.UserRole); // trying
to change the data
Object debug3 = item.data(Qt.ItemDataRole.UserRole);
System.out.println(debug3); //
success: "3"
}
}
Curt
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