accessing widgets in the source code

[franco.amato]

Hi,
I'm just learning Qt designer.
I installed the Qt plugin to create a new Qt project in visual studio.
I created a simple gui with designer dragging some widgets.
In the generated code there is a
ui.setupUi(this); routine.
Seems that every time I have to access to some of the qt widgets by code I have to prepend the "ui." prefix or I'm doing something wrong?

For example with designer I dragged on the form a QLabel, then I called it label.
If I would call some of the QLabel methods I have to write ui.label->setText( bla bla ) ?

Or the is something wrong in my logic? I don't like the idea of write ui. before every widget.
I hope to be wrong.

Best

[squidge]

The idea is encapsulation - all ui objects belong to an object called 'ui' so you don't mix them with your non-ui objects.

However, if you prefer them mixed, you can always use multiple inheritance.

If you don't know how to do that, an example is here: http://doc.trolltech.com/4.3/uitools-multipleinheritance.html

[viper]

with regards to the original question, I have the same problem but i don't mind typing the ui. The only true problem i have is that i don't see the widgets eg lable in the header file, when i use qt 4.is there anyway to get them in the header or source file constructor, so i can see all the variable/widgets on a form?

[squidge]

I don't get what you mean. All widgets are in the appropriate header file in the 'ui' namespace.

[viper]

#ifndef DIALOG_H
#define DIALOG_H

#include <QtGui/QDialog>

namespace Ui
{
class Dialog;
}

class Dialog : public QDialog
{
Q_OBJECT

public:
Dialog(QWidget *parent = 0);
~Dialog();

private:
Ui::Dialog *ui;
};

#endif // DIALOG_H

This is the header file for a form I created using Qt 4 creator, on the form i have two push Button and a Lable, in the ui file, but none of the widgets are shown in the header file, nor the source file. Please help, i am using qt 4 creator,

[wysota]

This is the header file for a form I created using Qt 4 creator,
No, this is a header file for a widget.


on the form i have two push Button and a Lable, in the ui file, but none of the widgets are shown in the header file, nor the source file.
As you said yourself - they are in the ui file (or the file generated from it to be precise, it's called ui_nameofyouruifile.h).

[viper]

Thanks a lot for your help, I search for the file you mentioned and found it, The thing is i was viewing the project files, so i just change the view to file system. sorry for posting in here