Problem with switching UI files. (Solved)

SheerFreeze4

Hello I've spent the last month learning Qt. I understand it fairly well yet I have a problem. I used Qt Creator to create different .ui files and then set up the program to switch between them. Here is my problem, when I run my program it creates two windows, the first and second, but the second one is just a frame of the window. When I press the push button it hides the first window and the second one (the frame) shows it's content. I need the second window to show up when I press the button and I need to know how to get the frame to vanish until then. My code is here.

main.cpp
@#include "mainwindow.h"
#include "mainwindow.cpp"
#include <QApplication>
using namespace std;

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

mainwindow.cpp
@#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "secwindow.h"
#include "ui_secwindow.h"
#include <iostream>
int Mode;

MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
}

MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::on_AdminRadio_toggled(bool checked)
{
Mode= (checked==true) ? 1:0;

Mode= (checked==false) ? 0:1;

}

void MainWindow::on_UserRadio_toggled(bool checked)
{
Mode= (checked==true) ? 2:0;

Mode= (checked==false) ? 0:2;

}

void MainWindow::on_NextButton_pressed()
{
if (Mode!=0){
hide();
sw.show();}

}

@

secwindow.cpp
@#include "secwindow.h"
#include "ui_secwindow.h"

SecWindow::SecWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::SecWindow)
{
ui->setupUi(this);
}

SecWindow::~SecWindow()
{
delete ui;
}
@

mainwindow.h
@#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include "secwindow.h"

namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
Q_OBJECT

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

private slots:

void on_AdminRadio_toggled(bool checked);

void on_UserRadio_toggled(bool checked);

void on_NextButton_pressed();

private:
Ui::MainWindow *ui;
SecWindow sw;
};

#endif // MAINWINDOW_H
@

secwindow.h
@#ifndef SECWINDOW_H
#define SECWINDOW_H

#include <QMainWindow>

namespace Ui {
class SecWindow;
}

class SecWindow : public QMainWindow
{
Q_OBJECT

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

private:
Ui::SecWindow *ui;
};

#endif // SECWINDOW_H
@
Thanks,
Brooks Rady

sierdzio

Your second window needs to be reparented properly. When a QWidget is created without a parent (you are doing exactly that), it will create a full window frame.
Possible solution (there are other ways, too):
@
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
sw.setParent(this);
}
@

Or, more conventionally, declare SecWindow as a pointer and use this in constructor:
@
// MainWindow constructor
sw = new SecWindow(this);
@

SheerFreeze4

Hi, I've trying out both of those methods and have been tinkering with them for quite a while now; however I haven't had much luck. It took me awhile to get it to compile, then when I put the code somewhere were it did, the two windows overlapped each other. Please, if you can post the exact code I need to put in because I don't have much longer before this needs to be done.

Thanks,
Brooks Rady

sierdzio

You might want to investigate QWizard for your use case, it provides kind of that functionality. Or QUILoader.

Here is something that could work:
@
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include "secwindow.h"

namespace Ui {
class MainWindow;
}

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

private slots:
void on_AdminRadio_toggled(bool checked);
void on_UserRadio_toggled(bool checked);
void on_NextButton_pressed();

private:
Ui::MainWindow *ui;
SecWindow *sw;
};

// MainWindow.cpp
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
sw = NULL;
}
// ...
void MainWindow::on_NextButton_pressed()
{
if (!sw) {
sw = new SecWindow(this);
sw->show();
hide();
}
}
@

SheerFreeze4

Thanks so much that did it!

sierdzio

Pleasure. Please mark the thread as solved.