Question

I am a Qt beginner and working with Qt Designer to develop some small UI elements. I read http://doc.trolltech.com/4.5/designer-using-a-ui-file.html to use these GUI elements in my code and using multiple inheritance approach.

I am introducing bookmark feature which somewhat look like http://img293.imageshack.us/img293/3041/screenshotyb.png. Now the problem I am facing is How can I show all existing bookmark folders in the drop down(say folders are in a QVector). So my main problem is how can I pass some inputs to the UI element.

I think I’m clear, please let me know if further explanation is required. Sorry for adding links directly, rich formatting in my browser is not working.

EDIT :
As some suggested, I have to go via code, but in that case is it possible that create all other components like textEdit, labels, buttons and add combobox using code. Because I have already developed code for bookmarks and adding folder feature in already existing thing.

Thanks For suggestions.
Finally I came up with the solution. I was using multiple inheritance implementation of UI file generated by QT Designer. So solution look like :

Dialog.ui will be UI file generated by QtDesigner
//bookmarDialog.h
#include "ui_Dialog.h"
class BookmarkDialog : public QWidget, private Ui::Dialog
{
Q_OBJECT

 public:
     BookmarkDialog (QWidget *parent = 0);
}

//bookmarkDialog.cpp
#include "bookmarkDialog.h"
BookmarkDialog::BookmarkDialog()
 : QWidget(parent)
{
   setupUi(this);

    QList folders = getAllFolders();
    comboBox->insertItems(0,folders);//comboBox is defined in UI file
}

Answer 1

With Qt Designer, you can add items to a combo box (double-click on the combobox to show up the editor). But if your folder list will vary, you’ll have to do it by code.

Have a look to QCombobox documentation (Qt doc is really good).

How are your storing your folders in the vector ? As strings ?

Il your QVector is containing strings, you can easily convert it into a QStringList and use it to populate your combobox :

QVector<QString> FolderList;    
myComboBox->addItems(FolderList.toList());

Then, you can connect the signal currentIndexChanged(const QString&) of your QComboBox to a slot to do something when the folder has changed.