Member Avatar for kolosick.m188

How do you close a QTabWidget? I have the code but when I click on the close button nothing happens.

#include "mainwindow.h"

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
{
    tab = new tabwidget();
    setCentralWidget(tab);
}

MainWindow::~MainWindow()
{
}
#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QtGui/QMainWindow>
#include "tabwidget.h"

class MainWindow : public QMainWindow
{
    Q_OBJECT

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

    private:
        tabwidget *tab;
};

#endif
#include "tabwidget.h"

tabwidget::tabwidget()
{
    setTabsClosable(true);

    t1 = new QTextEdit();
    addTab(t1, "1");
    t2 = new QTextEdit();
    addTab(t2, "2");
    t3 = new QTextEdit();
    addTab(t3, "3");
    t4 = new QTextEdit();
    addTab(t4, "4");
    t5 = new QTextEdit();
    addTab(t5, "5");
}
#ifndef TABWIDGET_H
#define TABWIDGET_H

#include <QTabWidget>
#include <QTextEdit>

class tabwidget : public QTabWidget
{
    public:
        tabwidget();

    private:
        QTextEdit *t1;
        QTextEdit *t2;
        QTextEdit *t3;
        QTextEdit *t4;
        QTextEdit *t5;
};

#endif
  • 2 Contributors
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  • Latest Post Latest Post by kolosick.m188
Member Avatar for surana4u

I think you need to connect

void tabCloseRequested ( int index )

with your slot. In which you should call

void removeTab ( int index )
Member Avatar for kolosick.m188

Thank you I will try that.

Member Avatar for kolosick.m188

Here are the new files and it still doesn't close. Please help.

#include "mainwindow.h"

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
{
    tab = new TabWidget();
    setCentralWidget(tab);
}

MainWindow::~MainWindow()
{
}
#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QtGui/QMainWindow>
#include "tabwidget.h"

class MainWindow : public QMainWindow
{
    Q_OBJECT

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

    private:
        TabWidget *tab;
};

#endif
#include "mdiarea.h"

MdiArea::MdiArea()
{
    win1 = new SubWindow();
    win2 = new SubWindow();
    win3 = new SubWindow();
    win4 = new SubWindow();
    win5 = new SubWindow();

    setOption(QMdiArea::DontMaximizeSubWindowOnActivation);

    addSubWindow(win1);
    addSubWindow(win2);
    addSubWindow(win3);
    addSubWindow(win4);
    addSubWindow(win5);
}
#ifndef MDIAREA_H
#define MDIAREA_H

#include <QMdiArea>
#include "subwindow.h"

class MdiArea : public QMdiArea
{
    public:
        MdiArea();

    private:
        SubWindow *win1;
        SubWindow *win2;
        SubWindow *win3;
        SubWindow *win4;
        SubWindow *win5;
};

#endif
#include "subwindow.h"

SubWindow::SubWindow()
{
    edit1 = new TextEdit();

    setWidget(edit1);
}
#ifndef SUBWINDOW_H
#define SUBWINDOW_H

#include <QMdiSubWindow>
#include "textedit.h"

class SubWindow : public QMdiSubWindow
{
    public:
        SubWindow();

    private:
        TextEdit *edit1;
};

#endif
#include "tabwidget.h"

TabWidget::TabWidget()
{
    connect(this, SIGNAL(tabCloseRequested(int)), this, SLOT(closeTab(int)));

    setTabsClosable(true);
    setUsesScrollButtons(true);

    area1 = new MdiArea();
    addTab(area1, "1");
}

void TabWidget::closeTab(int index)
{
    removeTab(index);
    widget(index)->~QWidget();
}
#ifndef TABWIDGET_H
#define TABWIDGET_H

#include <QTabWidget>
#include "mdiarea.h"

class TabWidget : public QTabWidget
{
    public:
        TabWidget();

    private slots:
        void closeTab(int index);

    private:
        MdiArea *area1;
};

#endif
#include "textedit.h"

TextEdit::TextEdit()
{
}
#ifndef TEXTEDIT_H
#define TEXTEDIT_H

#include <QPlainTextEdit>

class TextEdit : public QPlainTextEdit
{
    public:
        TextEdit();
};

#endif
Member Avatar for kolosick.m188

Never mind it worked

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