Hi there,
I have a weird problem with QT 4.6.2 and KDE 4.5 beta2 on Kubuntu Lucid.

If I define "void mouseReleaseEvent(QMouseEvent *);" for a widget and single click on that widget the window will be grabbed for moving by KDE.

Here I created a basic Project:

main.cpp

Code: Select all

#include <QtGui/QApplication>
#include "mainwindow.h"

int main(int argc, char *argv[]){
    QApplication a(argc, argv);
    MainWindow w;
    w.show();
    return a.exec();
}


mainwindow.h

Code: Select all

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QtGui/QMainWindow>

class MainWindow : public QMainWindow{
    Q_OBJECT
public:
    MainWindow(QWidget *parent = 0);
};

class CTestClick : public QWidget{
  Q_OBJECT
public:
  CTestClick();
protected:
//  void mouseReleaseEvent(QMouseEvent *);
};

#endif


mainwindow.cpp

Code: Select all

#include "mainwindow.h"

MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent){
  CTestClick *widget = new CTestClick;
  this->setCentralWidget(widget);
}


CTestClick::CTestClick(){}

//void CTestClick::mouseReleaseEvent(QMouseEvent *){}


If I uncomment the two lines in "mainwindow.cpp" and "mainwindow.h", window gets grabbed on a single click if i leave it in the comments than the window doesn't get grapped.


Am I not understanding something here or is this some sort of bug in QT or KDE? Maybe some sort of KDE setting? Should I even be asking for help if I use KDE4.5 beta2 or should I wait for a stable release and test it there and come back if my problem is still there?

In the meantime I will use a QPushButton for my purposes.

Thx in advance for any replies.

This is a bug in the Oxygen style, whose behaviour has been adjusted in KDE 4.5 Trunk.

Thanks for the fast reply

This bug is solved in KDE 4.5 RC1. It behaves just like it should.
Thanks again for the answer.