Weird problem with translate()

[romariorios]

Hello.

OK, here's the problem: I have this class:

#include <QMainWindow>
 
#include <QList>
#include <QModelIndex>
 
namespace Ui {
    class StimulatorMainWindow;
}
class Backend;
class ChannelsTabWidget;
class ConfigurationDialog;
class CustomTreatmentDialog;
class PatternsListDelegate;
class TreatmentsModel;
 
class QLabel;
class QMenu;
class QMessageBox;
class QModelIndex;
class QPushButton;
class QResizeEvent;
class QStateMachine;
class QStyledItemDelegate;
 
class StimulatorMainWindow : public QMainWindow
{
    Q_OBJECT
 
public:
    explicit StimulatorMainWindow(QWidget *parent = 0);
    ~StimulatorMainWindow();
 
protected:
    void closeEvent(QCloseEvent *);
 
    const QVariantHash &currentIndexData();
 
private:
    PatternsListDelegate *_patternsListDelegate;
    QStyledItemDelegate *_regularItemDelegate;
    CustomTreatmentDialog *_treatmentEditDialog, *_treatmentCreateDialog;
    QModelIndex _currentPatternIndex;
    QMessageBox *_treatmentWarning;
    ConfigurationDialog *_configDiag;
    QMenu *_patternsMenu;
    QAction *_newTreatmentSeparator;
 
    QStateMachine *_interfaceMachine;
 
    Backend *_backend;
    TreatmentsModel *_patternsModel;
 
    Ui::StimulatorMainWindow *_ui;
 
    /* Methods and signals */
};

#include <QMainWindow>

#include <QList>
#include <QModelIndex>

namespace Ui {
    class StimulatorMainWindow;
}
class Backend;
class ChannelsTabWidget;
class ConfigurationDialog;
class CustomTreatmentDialog;
class PatternsListDelegate;
class TreatmentsModel;

class QLabel;
class QMenu;
class QMessageBox;
class QModelIndex;
class QPushButton;
class QResizeEvent;
class QStateMachine;
class QStyledItemDelegate;

class StimulatorMainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit StimulatorMainWindow(QWidget *parent = 0);
    ~StimulatorMainWindow();

protected:
    void closeEvent(QCloseEvent *);

    const QVariantHash &currentIndexData();

private:
    PatternsListDelegate *_patternsListDelegate;
    QStyledItemDelegate *_regularItemDelegate;
    CustomTreatmentDialog *_treatmentEditDialog, *_treatmentCreateDialog;
    QModelIndex _currentPatternIndex;
    QMessageBox *_treatmentWarning;
    ConfigurationDialog *_configDiag;
    QMenu *_patternsMenu;
    QAction *_newTreatmentSeparator;

    QStateMachine *_interfaceMachine;

    Backend *_backend;
    TreatmentsModel *_patternsModel;

    Ui::StimulatorMainWindow *_ui;

    /* Methods and signals */
};

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But, if I try to declare a new variable inside it, say, an int, I will definitively get a segfault if I use that variable.

If I declare this variable before Ui::StimulatorMainWindow *_ui;, I'll get a segfault right after trying to run the application, even if I don't use the variable. Here are Valgrind (http://pastebin.com/uAa8yaYq) and backtrace (http://pastebin.com/1jQF8X4u) for this case.

But if I declare the new variable after Ui::StimulatorMainWindow *_ui; and then use it in the class definition (by, for example, attributing it some value), I'll get a segfault from the first tr() after its usage, but not from the ones before. Valgrind (http://pastebin.com/58DrJ3A9) and backtrace (http://pastebin.com/1jQF8X4u).

Anyway, this is related to the translate() method, but I have absolutely no idea how. It never happened before and, as I said, all I did was to declare a new variable and attribute it a value.

What's going on? What's wrong with my class?

I'm completely lost on this one, so any kind of help would be appreciated.

Thanks.