dinamically create widgets

[msmihai]

Here is my scenario :

1 . I have a MainWindow
2. I have a QPushButton on it
3. When i press it, i want to dinamically create N PushButtons.
4. When i press any of those buttons, i want something specific to happen ( like a slot with the name of the button that was pressed in a parameter or smth like that ) .

How can i make this ?

[jpn]

What did you try so far? Did you create a slot? Did you establish a signal-slot connection between the button and the slot?

[msmihai]

Here is my code so far.

app.h

#ifndef APP_H
#define APP_H
 
#include "ui_gui.h"
 
class App1:public QMainWindow,private Ui::Form1
{
	Q_OBJECT
public:
	App1();
	QPushButton *Button2;
private slots:
	void Button1Clicked();
};
 
#endif

#ifndef APP_H
#define APP_H

#include "ui_gui.h"

class App1:public QMainWindow,private Ui::Form1
{
	Q_OBJECT
public:
	App1();
	QPushButton *Button2;
private slots:
	void Button1Clicked();
};

#endif

To copy to clipboard, switch view to plain text mode 

app.cpp

#include <QtGui>
#include "app.h"
 
App1::App1()
{
	connect(Button1,SIGNAL(clicked()),this,SLOT(Button1Clicked()));
}
 
 
void App1::Button1Clicked()
{
 
}

#include <QtGui>
#include "app.h"

App1::App1()
{
	connect(Button1,SIGNAL(clicked()),this,SLOT(Button1Clicked()));
}


void App1::Button1Clicked()
{

}

To copy to clipboard, switch view to plain text mode 

What should i do next ?

I already tried smth like this:

void App1::Button1Clicked()
{
QPushButton *btn = new QPushButton();
// etc . set it's properties
}

void App1::Button1Clicked()
{
QPushButton *btn = new QPushButton();
// etc . set it's properties
}

To copy to clipboard, switch view to plain text mode 

But it doesn't appear on the main window .

[spirit]

try this

void App1::Button1Clicked()
{
QPushButton *btn = new QPushButton();
setCentralWidget(btn);
// etc . set it's properties
}

void App1::Button1Clicked()
{
QPushButton *btn = new QPushButton();
setCentralWidget(btn);
// etc . set it's properties
}

To copy to clipboard, switch view to plain text mode 

but it's just example, in general you need to create a widget put layout on it, add another widgets and add it to created layout and then set that (first) widget as central widget of mainwindow and everything will work perfectlly.

[msmihai]

i did as you said but the new created button occupies all the mainwindow

[jpn]

i did as you said but the new created button occupies all the mainwindow

Yes that's what it does, spirit just gave it as an example. Please read through the documentation of Layout Classes.

[msmihai]

in my ui_gui.h file ( automatically generated ) , i have an object called centralwidget.
i think it has something to do with it. could someone please tell me what should i do ?
it's not in my nature to directly ask for code but i just can't figure it out
please help me

[spirit]

on central widget you can add layouts and another widgets.