qt4.1.1 designer

[raphaelf]

OS: WINXP
Compiler: MINGW 4.1.1
QT: QT 4.1.1

Hello everybody,
Its really time to make a important step in my live...jump from qt3 to 4

I have read some docs and tried tutorials..
I have a question about using designer in the right steps:

1. I have created a widget, connection in the designer and save it "test1.ui"
2. I have created by hand a "test1.pro":

TEMPLATE    = app
    FORMS       = test1.ui
    SOURCES     = main.cpp

TEMPLATE    = app
    FORMS       = test1.ui
    SOURCES     = main.cpp

To copy to clipboard, switch view to plain text mode 

3. I have created a main.cpp:

#include "ui_test1.h"
 #include <QApplication>
 
 
  int main(int argc, char *argv[])
    {
        QApplication app(argc, argv);
        QDialog *window = new QDialog;
        Ui::Dialog ui;
        ui.setupUi(window);
 
        window->show();
        return app.exec();
    }

#include "ui_test1.h"
 #include <QApplication>
    
 
  int main(int argc, char *argv[])
    {
        QApplication app(argc, argv);
        QDialog *window = new QDialog;
        Ui::Dialog ui;
        ui.setupUi(window);

        window->show();
        return app.exec();
    }

To copy to clipboard, switch view to plain text mode 

4. compile and get exe file

My Question: how to get a cpp file to implement my functions?And are my steps correct?Have i to create by hand the cpp? Its right that if i include "ui_test.h" in main.cpp the file will created?Have i to create the main.cpp by hand?

I want to use the designer to design my app

[axeljaeger]

Looks like you followed this document:

http://doc.trolltech.com/4.1/designe...component.html

Scroll down to http://doc.trolltech.com/4.1/designe...tance-approach

or further to see examples where you can hook in your code.

[GreyGeek]

OS: WINXP
Compiler: MINGW 4.1.1
QT: QT 4.1.1

Hello everybody,
Its really time to make a important step in my live...jump from qt3 to 4
...snip...
My Question: how to get a cpp file to implement my functions?And are my steps correct?Have i to create by hand the cpp? Its right that if i include "ui_test.h" in main.cpp the file will created?Have i to create the main.cpp by hand?

I want to use the designer to design my app

I jumped from QT3 to QT4 too, and below is a link to an HTML file that explains how I made my first app under Qt4. Also, I use the designer for the gui's.

http://www.qtcentre.org/forum/attach...5&d=1138742423

[sunil.thaha]

But that link is not accessible to anyone but you

[wysota]

But that link is not accessible to anyone but you

Is it? I can read it fine.

[raphaelf]

hi everybody, thx for all replies..

I hope i am in the right way

Please let me now if i am in the right way or not, AND WHY I CANT SEE A Messagebox after clicking my okButton ;(

my steps:
1. Design my MainWindow
2. i have created a main.cpp:

#include "ui_mainwindow.h"
#include <QApplication>
 
 
     int main(int argc, char *argv[])
    {
        QApplication app(argc, argv);
        QDialog *window = new QDialog;
        Ui::MainWindow ui;
        ui.setupUi(window);
 
        window->show();
        return app.exec();
    }

#include "ui_mainwindow.h"
#include <QApplication>
    

     int main(int argc, char *argv[])
    {
        QApplication app(argc, argv);
        QDialog *window = new QDialog;
        Ui::MainWindow ui;
        ui.setupUi(window);

        window->show();
        return app.exec();
    }

To copy to clipboard, switch view to plain text mode 

3. I have created a test.h:

#include "ui_mainwindow.h"
 
 
 
class MainWindow : public QDialog
    {
        Q_OBJECT
 
    public:
        MainWindow(QWidget *parent = 0);
 
     public slots:
        void myfirstfunction();
 
 
    private:
        Ui::MainWindow ui;
 
 
 
    };

#include "ui_mainwindow.h"



class MainWindow : public QDialog
    {
        Q_OBJECT

    public:
        MainWindow(QWidget *parent = 0);
        
     public slots:
        void myfirstfunction();
        

    private:
        Ui::MainWindow ui;
        
       
        
    };

To copy to clipboard, switch view to plain text mode 

4. I have created a test.cpp:

#include "test.h"
 
#include <QMessageBox>
 
MainWindow::MainWindow(QWidget *parent)
        : QDialog(parent)
    {
        ui.setupUi(this);
 
 
 
        connect(ui.okButton, SIGNAL(clicked()), this, SLOT(myfirstfunction()));
        connect(ui.cancelButton, SIGNAL(clicked()), this, SLOT(reject()));
    }
 
void MainWindow::myfirstfunction()
{
	 QMessageBox::information(this, "Application name",
    "Unable to find the user preferences file.\n"
    "The factory default will be used instead.");
 
}

#include "test.h"

#include <QMessageBox>

MainWindow::MainWindow(QWidget *parent)
        : QDialog(parent)
    {
        ui.setupUi(this);

        

        connect(ui.okButton, SIGNAL(clicked()), this, SLOT(myfirstfunction()));
        connect(ui.cancelButton, SIGNAL(clicked()), this, SLOT(reject()));
    }
    
void MainWindow::myfirstfunction()
{
	 QMessageBox::information(this, "Application name",
    "Unable to find the user preferences file.\n"
    "The factory default will be used instead.");
	
}

To copy to clipboard, switch view to plain text mode 

5. qmake -project

.pro file:

######################################################################
# Automatically generated by qmake (2.00a) Sa 25. Feb 22:31:12 2006
######################################################################
 
TEMPLATE = app
TARGET += 
DEPENDPATH += .
INCLUDEPATH += .
 
# Input
HEADERS += test.h
FORMS += mainwindow.ui
SOURCES += main.cpp test.cpp

######################################################################
# Automatically generated by qmake (2.00a) Sa 25. Feb 22:31:12 2006
######################################################################

TEMPLATE = app
TARGET += 
DEPENDPATH += .
INCLUDEPATH += .

# Input
HEADERS += test.h
FORMS += mainwindow.ui
SOURCES += main.cpp test.cpp

To copy to clipboard, switch view to plain text mode 

6. qmake
7. make I get a exe file without error

By clicking my okButton i cant see my Messagebox by calling myfirstfunction().

[wysota]

Looks like you have two Ui::MainWindow objects -- one in main (which is used to show widgets) and the other as a private member of MainWindow (which is connected to a slot), meaning, that you have connected the wrong button to the slot. Remove the object from main().

[raphaelf]

hi wysota, like that it works:

#include "test.h"
#include <QApplication>
 
 
     int main(int argc, char *argv[])
    {
        QApplication app(argc, argv);
       MainWindow m;  
        m.show();
        return app.exec();
    }

#include "test.h"
#include <QApplication>
    

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

To copy to clipboard, switch view to plain text mode 

Wysota, i am using the correct way?
If i would like to not Subclass "ui_mainwindow.h" and use itself, have i to define my functions there and create a new mainwindow.cpp and implement it there?Will "ui_mainwindow.h" not overwritten?

For example if i have 10 Dialogs...Have i everytime to subclass every ui_XXX.h ??

[wysota]

You should. In theory you probably could try passing a pointer or a reference to your UI structure, but I don't recommend that. Basicly you should either subclass every ui you create or implement a dynamic dialog, which will change according to your needs (for example including dynamic form (UI) loading). If you don't want to subclass every dialog manualy, you can create a script which will do it for you, you'll just need to fill in the details.

[raphaelf]

hi..
ok so i should subclass it every dialog, mainwindow...
So my example was correct?

[wysota]

The one in your previous post? Yes.