QMainWindow inside another widget

**ChrisW67** · 23rd August 2010, 08:14

Exactly how you do the plumbing depends on exactly how you want things arranged. However, it's something along these lines:

Open your project in Qt Creator
"Add New...", "Designer Form Class", type is "Main Window", and provide some names to add another QMainWindow derivative to your project. I'll use a class called ThingyTabInnerWindow as an example.
Design the new inner form.
Go to the source for the UI class that contains your tab widget (e.g. MainWindow)
In the constructor (or somewhere else that makes sense) try something like the code below. It's exactly the same as adding any other widget to a tab widget.

Qt Code:

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#include "thingytabinnerwindow.h"
 
MainWindow::MainWindow(...) {
  setupUi(this);  // the main window's Designer UI
  ...
  // Patch in your inner window using the Designer created class
  ThingyTabInnerWindow *tTIW = new ThingyTabInnerWindow(this);
  ui->tabWidget->addTab(tTIW, tr("Thingy Tab Heading"));
  // connect any inner window signals to slots as needed
  ...
}

#include "thingytabinnerwindow.h"

MainWindow::MainWindow(...) {
  setupUi(this);  // the main window's Designer UI
  ...
  // Patch in your inner window using the Designer created class
  ThingyTabInnerWindow *tTIW = new ThingyTabInnerWindow(this);
  ui->tabWidget->addTab(tTIW, tr("Thingy Tab Heading"));
  // connect any inner window signals to slots as needed
  ...
}

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