QLabel setText Problem

[pmabie]

Hello
I made a simple form in the Qt Designer, 4 QLabel's and 1 Process bar.
I am trying to feed the QLabel a file name to be displayed in the my Dialog.


labelFileName->setText(filename);:(
no matter what I do, I just can't get it to print the line, the only way I got it to work was to place a statement after setupUI.


setupUi(this)
labelFileName->setText("Test");:)

My Question is , why doesn't my statement work.

Thanks for your time .

Patrick.

[jacek]

Where did you try to place that line?

[pmabie]

In the dialog containing the QLabel * labelFilename

hope that helps..

thanks for the reply!

Patrick.

[jacek]

Could you post an example of non-working code?

[pmabie]

/*
ProcessingDlg.Cpp
*/

#include "MainWindow.h"
#include <QtGui>
#include <QCloseEvent >
#include "ProcessingDlg.h"
#include "Config.h"

ProcessingDlg::ProcessingDlg(QWidget *parent, MainWindow *h)
: QDialog(parent),help(h)
{
setupUi(this);
}

void ProcessingDlg::closeEvent(QCloseEvent *m_pevent)
{
help->m_pProcessDlg = false;
delete help->m_pProcessDlg;
m_pevent->accept();
}



/*
ProcessingDlg.h
*/

#ifndef PROCESSINGDLG_H
#define PROCESSINGDLG_H

#include"ui_Processing.h"

class MainWindow;
class QLabel;

class ProcessingDlg : public QDialog, public Ui::Process
{
Q_OBJECT

public:
ProcessingDlg(QWidget *parent,MainWindow *h);
MainWindow *help;

protected:
void closeEvent(QCloseEvent *m_pevent);

public slots:

private:
Ui::Process ui;

public:

};

#endif




if(!m_pProcessDlg)
m_pProcessDlg = new ProcessingDlg(m_pTab,this);

// Make FIle List of Directory
QFileInfoList m_pFinfo = CurrentDir.entryInfoList();

m_pEntries = m_pFinfo.count();

m_pProcessDlg->progressBar->setMaximum(m_pEntries);
m_pProcessDlg->progressBar->setValue(m_pCurrentEnt);

if(!CurrentDir.cd(DirPath))
{
QMessageBox::information(this,tr("Error"),tr("Can't Cd into %1").arg(DirPath));
return false;
}

m_pProcessDlg->labelDirectory->setText(DirPath);


Hope this helps , thanks again for your time , it's greatly appreciated!
Patrick

[jacek]

help->m_pProcessDlg = false;
delete help->m_pProcessDlg;
This is wrong --- the second line should be first.


if(!m_pProcessDlg)
m_pProcessDlg = new ProcessingDlg(m_pTab,this);
...
m_pProcessDlg->labelDirectory->setText(DirPath);
Do you invoke exec() on m_pProcessDlg anywhere?

P.S. Please use [code] tags for code snippets, not [qtclass]. The latter is for linking to Qt docs.

[pmabie]

Really sorry , I will remember that .

I am doing a show();

Patrick.

[jacek]

I am doing a show();
OK, then maybe you declare m_pProcessDlg more than once?

[pmabie]

I will check on that , but I pretty sure that it's in my mainwindow.h :)

Thanks!

[pmabie]

Checked it out , only one time, I tried to setText before the show() worked fine , after I show it , I lose contact ....

thanks alot for you time!

Patrick.

[jacek]

Then maybe you have some kind of a loop that blocks the event loop and you simply can't see that the text was changed.