diff -r 000000000000 -r 1918ee327afb src/qt3support/dialogs/q3tabdialog.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/qt3support/dialogs/q3tabdialog.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,1087 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt3Support module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "q3tabdialog.h"
+
+#include "qtabbar.h"
+#include "qtabwidget.h"
+#include "qpushbutton.h"
+#include "qpainter.h"
+#include "qpixmap.h"
+#include "qapplication.h"
+#include "q3widgetstack.h"
+#include "qlayout.h"
+#include "qevent.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace Qt;
+
+/*!
+    \class Q3TabDialog
+    \compat
+    \brief The Q3TabDialog class provides a stack of tabbed widgets.
+
+    A tabbed dialog is one in which several "tab pages" are available.
+    By clicking on a tab page's tab or by pressing the indicated
+    Alt+\e{letter} key combination, the user can select which tab page
+    they want to use.
+
+    Q3TabDialog provides a tab bar consisting of single row of tabs at
+    the top; each tab has an associated widget which is that tab's
+    tab page. In addition, Q3TabDialog provides an OK button and the
+    following optional buttons: Apply, Cancel, Defaults and Help.
+
+    The normal way to use Q3TabDialog is to do the following in the
+    constructor:
+    \list 1
+    \i Create a Q3TabDialog.
+    \i Create a QWidget for each of the pages in the tab dialog, insert
+    children into it, set up geometry management for it, and use
+    addTab() (or insertTab()) to set up a tab and keyboard accelerator
+    for it.
+    \i Set up the buttons for the tab dialog using setOkButton(),
+    setApplyButton(), setDefaultsButton(), setCancelButton() and
+    setHelpButton().
+    \i Connect to the signals and slots.
+    \endlist
+
+    If you don't call addTab() the page you have created will not be
+    visible. Don't confuse the object name you supply to the
+    QWidget constructor and the tab label you supply to addTab();
+    addTab() takes user-visible name that appears on the widget's tab
+    and may identify an accelerator, whereas the widget name is used
+    primarily for debugging.
+
+    Almost all applications have to connect the applyButtonPressed()
+    signal to something. applyButtonPressed() is emitted when either OK
+    or Apply is clicked, and your slot must copy the dialog's state into
+    the application.
+
+    There are also several other signals which may be useful:
+    \list
+    \i cancelButtonPressed() is emitted when the user clicks Cancel.
+    \i defaultButtonPressed() is emitted when the user clicks Defaults;
+    the slot it is connected to should reset the state of the dialog to
+    the application defaults.
+    \i helpButtonPressed() is emitted when the user clicks Help.
+    \i aboutToShow() is emitted at the start of show(); if there is any
+    chance that the state of the application may change between the
+    creation of the tab dialog and the time show() is called, you must
+    connect this signal to a slot that resets the state of the dialog.
+    \i currentChanged() is emitted when the user selects a page.
+    \endlist
+
+    Each tab is either enabled or disabled at any given time (see
+    setTabEnabled()). If a tab is enabled the tab text is drawn in
+    black and the user can select that tab. If it is disabled the tab
+    is drawn in a different way and the user cannot select that tab.
+    Note that even if a tab is disabled, the page can still be visible;
+    for example, if all of the tabs happen to be disabled.
+
+    You can change a tab's label and iconset using changeTab(). A tab
+    page can be removed with removePage() and shown with showPage(). The
+    current page is given by currentPage().
+
+    Q3TabDialog does not support tabs on the sides or bottom, nor can
+    you set or retrieve the visible page. If you need more functionality
+    than Q3TabDialog provides, consider creating a QDialog and using a
+    QTabBar with QTabWidgets.
+
+    Most of the functionality in Q3TabDialog is provided by a QTabWidget.
+*/
+
+/*!
+    \fn void Q3TabDialog::selected(const QString &name)
+
+    This signal is emitted whenever a tab is selected (raised),
+    including during the first show(). \a name is the name of the
+    selected tab.
+
+    \sa raise()
+*/
+
+/*! \fn void Q3TabDialog::currentChanged(QWidget *widget)
+
+    This signal is emitted whenever the current page changes. \a widget
+    is the new current page.
+
+    \sa currentPage(), showPage(), tabLabel()
+*/
+
+class Q3TabDialogPrivate
+{
+public:
+    Q3TabDialogPrivate();
+
+    QTabWidget* tw;
+
+    QPushButton * ok;
+    QPushButton * cb;
+    QPushButton * db;
+    QPushButton * hb;
+    QPushButton * ab;
+
+    QBoxLayout * tll;
+};
+
+Q3TabDialogPrivate::Q3TabDialogPrivate()
+	: tw(0),
+	  ok(0), cb(0), db(0), hb(0), ab(0),
+	  tll(0)
+{ }
+
+/*!
+  Constructs a Q3TabDialog with only an OK button.
+  The \a parent, \a name, \a modal and widget flag, \a f, arguments
+  are passed on to the QDialog constructor.
+*/
+
+Q3TabDialog::Q3TabDialog(QWidget *parent, const char *name, bool modal, Qt::WindowFlags f)
+    : QDialog(parent, name, modal, f)
+{
+    d = new Q3TabDialogPrivate;
+    Q_CHECK_PTR(d);
+
+    d->tw = new QTabWidget(this, "tab widget");
+    connect (d->tw, SIGNAL (selected(QString)), this, SIGNAL(selected(QString)));
+    connect (d->tw, SIGNAL (currentChanged(QWidget*)), this, SIGNAL(currentChanged(QWidget*)));
+
+    d->ok = new QPushButton(this, "ok");
+    Q_CHECK_PTR(d->ok);
+    d->ok->setText(tr("OK"));
+    d->ok->setDefault(true);
+    connect(d->ok, SIGNAL(clicked()),
+	     this, SIGNAL(applyButtonPressed()));
+    connect(d->ok, SIGNAL(clicked()),
+	     this, SLOT(accept()));
+}
+
+
+/*!
+  Destroys the tab dialog.
+*/
+
+Q3TabDialog::~Q3TabDialog()
+{
+    delete d;
+}
+
+
+/*!
+  Sets the font for the tabs to \a font.
+
+  If the widget is visible, the display is updated with the new font
+  immediately. There may be some geometry changes, depending on the
+  size of the old and new fonts.
+*/
+
+void Q3TabDialog::setFont(const QFont & font)
+{
+    QDialog::setFont(font);
+    setSizes();
+}
+
+
+/*!
+  \fn void Q3TabDialog::applyButtonPressed();
+
+  This signal is emitted when either the Apply or OK button is clicked.
+
+  It should be connected to a slot (or several slots) that change the
+  application's state according to the state of the dialog.
+
+  \sa cancelButtonPressed() defaultButtonPressed() setApplyButton()
+*/
+
+
+/*!
+  Returns true if the tab dialog has a Defaults button; otherwise
+  returns false.
+
+  \sa setDefaultButton() defaultButtonPressed() hasApplyButton()
+  hasCancelButton()
+*/
+
+bool Q3TabDialog::hasDefaultButton() const
+{
+     return d->db != 0;
+}
+
+
+/*!
+  Returns true if the tab dialog has a Help button; otherwise returns
+  false.
+
+  \sa setHelpButton() helpButtonPressed() hasApplyButton()
+  hasCancelButton()
+*/
+
+bool Q3TabDialog::hasHelpButton() const
+{
+     return d->hb != 0;
+}
+
+
+/*!
+  \fn void Q3TabDialog::cancelButtonPressed();
+
+  This signal is emitted when the Cancel button is clicked. It is
+  automatically connected to QDialog::reject(), which will hide the
+  dialog.
+
+  The Cancel button should not change the application's state at all,
+  so you should generally not need to connect it to any slot.
+
+  \sa applyButtonPressed() defaultButtonPressed() setCancelButton()
+*/
+
+
+/*!
+  Returns true if the tab dialog has a Cancel button; otherwise
+  returns false.
+
+  \sa setCancelButton() cancelButtonPressed() hasApplyButton()
+  hasDefaultButton()
+*/
+
+bool Q3TabDialog::hasCancelButton() const
+{
+     return d->cb != 0;
+}
+
+
+/*!
+  \fn void Q3TabDialog::defaultButtonPressed();
+
+  This signal is emitted when the Defaults button is pressed. It
+  should reset the dialog (but not the application) to the "factory
+  defaults".
+
+  The application's state should not be changed until the user clicks
+  Apply or OK.
+
+  \sa applyButtonPressed() cancelButtonPressed() setDefaultButton()
+*/
+
+
+/*!
+  \fn void Q3TabDialog::helpButtonPressed();
+
+  This signal is emitted when the Help button is pressed. It
+  could be used to present information about how to use the dialog.
+
+  \sa applyButtonPressed() cancelButtonPressed() setHelpButton()
+*/
+
+
+/*!
+  Returns true if the tab dialog has an Apply button; otherwise
+  returns false.
+
+  \sa setApplyButton() applyButtonPressed() hasCancelButton()
+  hasDefaultButton()
+*/
+
+bool Q3TabDialog::hasApplyButton() const
+{
+    return d->ab != 0;
+}
+
+
+/*!
+  Returns true if the tab dialog has an OK button; otherwise returns
+  false.
+
+  \sa setOkButton() hasApplyButton() hasCancelButton()
+  hasDefaultButton()
+*/
+
+bool Q3TabDialog::hasOkButton() const
+{
+    return d->ok != 0;
+}
+
+
+/*!
+  \fn void Q3TabDialog::aboutToShow()
+
+  This signal is emitted by show() when it is time to set the state of
+  the dialog's contents. The dialog should reflect the current state
+  of the application when it appears; if there is any possibility that
+  the state of the application may change between the time you call
+  Q3TabDialog() and show(), you should set the
+  dialog's state in a slot and connect this signal to it.
+
+  This applies mainly to Q3TabDialog objects that are kept around
+  hidden, rather than being created, shown, and deleted afterwards.
+
+  \sa applyButtonPressed(), QWidget::show(), cancelButtonPressed()
+*/
+
+
+/*!
+    \internal
+
+    Implemented to delay show()'ing of every page.
+*/
+void Q3TabDialog::show()
+{
+    //   Reimplemented in order to delay show()'ing of every page
+    //   except the initially visible one, and in order to emit the
+    //   aboutToShow() signal.
+    if (window() == this)
+	d->tw->setFocus();
+    emit aboutToShow();
+    setSizes();
+    setUpLayout();
+    QDialog::show();
+}
+
+
+
+/*!
+  Adds another tab and page to the tab view.
+
+  The new page is \a child; the tab's label is \a label.
+  Note the difference between the widget name (which you supply to
+  widget constructors and to setTabEnabled(), for example) and the tab
+  label. The name is internal to the program and invariant, whereas
+  the label is shown on-screen and may vary according to language and
+  other factors.
+
+  If the tab's \a label contains an ampersand, the letter following
+  the ampersand is used as an accelerator for the tab, e.g. if the
+  label is "Bro&wse" then Alt+W becomes an accelerator which will
+  move the focus to this tab.
+
+  If you call addTab() after show() the screen will flicker and the
+  user may be confused.
+
+  \sa insertTab()
+*/
+
+void Q3TabDialog::addTab(QWidget * child, const QString &label)
+{
+    d->tw->addTab(child, label);
+}
+
+
+
+/*! \overload
+
+  This version of the function shows the \a iconset as well as the \a
+  label on the tab of \a child.
+*/
+void Q3TabDialog::addTab(QWidget *child, const QIcon& iconset, const QString &label)
+{
+    d->tw->addTab(child, iconset, label);
+}
+
+
+/*!
+  Inserts another tab and page to the tab view.
+
+  The new page is \a child; the tab's label is \a label.
+  Note the difference between the widget name (which you supply to
+  widget constructors and to setTabEnabled(), for example) and the tab
+  label. The name is internal to the program and invariant, whereas
+  the label is shown on-screen and may vary according to language and
+  other factors.
+
+  If the tab's \a label contains an ampersand, the letter following
+  the ampersand is used as an accelerator for the tab, e.g. if the
+  label is "Bro&wse" then Alt+W becomes an accelerator which will
+  move the focus to this tab.
+
+  If \a index is not specified, the tab is simply added. Otherwise
+  it is inserted at the specified position.
+
+  If you call insertTab() after show(), the screen will flicker and the
+  user may be confused.
+
+  \sa addTab()
+*/
+
+void Q3TabDialog::insertTab(QWidget * child, const QString &label, int index)
+{
+    d->tw->insertTab(child, label, index);
+}
+
+
+/*! \overload
+
+  This version of the function shows the \a iconset as well as the \a
+  label on the tab of \a child.
+ */
+void Q3TabDialog::insertTab(QWidget *child, const QIcon& iconset, const QString &label, int index)
+{
+    d->tw->insertTab(child, iconset, label, index);
+}
+
+/*!
+  Replaces the QTabBar heading the dialog by the given tab bar, \a tb.
+  Note that this must be called \e before any tabs have been added,
+  or the behavior is undefined.
+  \sa tabBar()
+*/
+void Q3TabDialog::setTabBar(QTabBar* tb)
+{
+    if (tb == 0){
+        qWarning("Q3TabDialog::setTabBar() called with null QTabBar pointer");
+        return;
+    }
+    
+    d->tw->setTabBar(tb);
+    setUpLayout();
+}
+
+/*!
+  Returns the currently set QTabBar.
+  \sa setTabBar()
+*/
+QTabBar* Q3TabDialog::tabBar() const
+{
+    return d->tw->tabBar();
+}
+
+/*!  Ensures that widget \a w is shown. This is mainly useful for accelerators.
+
+  \warning If used carelessly, this function can easily surprise or
+  confuse the user.
+
+  \sa QTabBar::setCurrentTab()
+*/
+
+void Q3TabDialog::showPage(QWidget * w)
+{
+    d->tw->showPage(w);
+}
+
+
+/*! \obsolete
+  Returns true if the page with object name \a name is enabled and
+  false if it is disabled.
+
+  If \a name is 0 or not the name of any of the pages, isTabEnabled()
+  returns false.
+
+  \sa setTabEnabled(), QWidget::isEnabled()
+*/
+
+bool Q3TabDialog::isTabEnabled(const char* name) const
+{
+    if (!name)
+	return false;
+    QObjectList l = this->queryList("QWidget", name, false, true);
+    if (!l.isEmpty()) {
+        for (int i = 0; i < l.size(); ++i) {
+            QObject *o = l.at(i);
+            if (!o->isWidgetType())
+                continue;
+            QWidget *w = static_cast<QWidget *>(o);
+            return d->tw->isTabEnabled(w);
+        }
+    }
+    return false;
+}
+
+
+/*!\obsolete
+
+  Finds the page with object name \a name, enables/disables it
+  according to the value of \a enable and redraws the page's tab
+  appropriately.
+
+  Q3TabDialog uses QWidget::setEnabled() internally, rather than keeping a
+  separate flag.
+
+  Note that even a disabled tab/page may be visible. If the page is
+  already visible Q3TabDialog will not hide it; if all the pages
+  are disabled Q3TabDialog will show one of them.
+
+  The object name is used (rather than the tab label) because the tab
+  text may not be invariant in multi-language applications.
+
+  \sa isTabEnabled(), QWidget::setEnabled()
+*/
+
+void Q3TabDialog::setTabEnabled(const char* name, bool enable)
+{
+    if (!name)
+	return;
+    QObjectList l = this->queryList("QWidget", name, false, true);
+    if (!l.isEmpty()) {
+        for (int i = 0; i < l.size(); ++i) {
+            QObject *o = l.at(i);
+            if(o->isWidgetType())
+                d->tw->setTabEnabled(static_cast<QWidget*>(o), enable);
+        }
+    }
+}
+
+
+/* ### SHOULD THIS BE HERE?
+  Adds an Apply button to the dialog. The button's text is set to \e
+  text (and defaults to "Apply").
+
+  The Apply button should apply the current settings in the dialog box
+  to the application, while keeping the dialog visible.
+
+  When Apply is clicked, the applyButtonPressed() signal is emitted.
+
+  If \a text is an empty string, no button is shown.
+
+  \sa setCancelButton() setDefaultButton() applyButtonPressed()
+*/
+
+
+/*!
+  Returns true if the page \a w is enabled; otherwise returns false.
+
+  \sa setTabEnabled(), QWidget::isEnabled()
+*/
+
+bool Q3TabDialog::isTabEnabled(QWidget* w) const
+{
+    return d->tw->isTabEnabled(w);
+}
+
+/*!
+  If \a enable is true the page \a w is enabled; otherwise \a w is
+  disabled. The page's tab is redrawn appropriately.
+
+  QTabWidget uses QWidget::setEnabled() internally, rather than keeping a
+  separate flag.
+
+  Note that even a disabled tab and tab page may be visible. If the
+  page is already visible QTabWidget will not hide it; if all the
+  pages are disabled QTabWidget will show one of them.
+
+  \sa isTabEnabled(), QWidget::setEnabled()
+*/
+
+void Q3TabDialog::setTabEnabled(QWidget* w, bool enable)
+{
+    d->tw->setTabEnabled(w, enable);
+}
+
+
+/*!
+  Adds an Apply button to the dialog. The button's text is set to \a
+  text.
+
+  The Apply button should apply the current settings in the dialog box
+  to the application while keeping the dialog visible.
+
+  When Apply is clicked, the applyButtonPressed() signal is emitted.
+
+  If \a text is an empty string, no button is shown.
+
+  \sa setCancelButton() setDefaultButton() applyButtonPressed()
+*/
+void Q3TabDialog::setApplyButton(const QString &text)
+{
+    if (text.isEmpty() && d->ab) {
+	delete d->ab;
+	d->ab = 0;
+	setSizes();
+    } else {
+	if (!d->ab) {
+	    d->ab = new QPushButton(this, "apply settings");
+	    connect(d->ab, SIGNAL(clicked()),
+		     this, SIGNAL(applyButtonPressed()));
+	    setUpLayout();
+	}
+	d->ab->setText(text);
+	setSizes();
+	//d->ab->show();
+    }
+}
+
+/*!
+    \overload
+
+  Adds an Apply button to the dialog. The button's text is set to
+  a localizable "Apply".
+ */
+void Q3TabDialog::setApplyButton()
+{
+    setApplyButton(tr("Apply"));
+}
+
+
+/*!
+  Adds a Help button to the dialog. The button's text is set to \a
+  text.
+
+  When Help is clicked, the helpButtonPressed() signal is emitted.
+
+  If \a text is an empty string, no button is shown.
+
+  \sa setApplyButton() setCancelButton() helpButtonPressed()
+*/
+
+void Q3TabDialog::setHelpButton(const QString &text)
+{
+    if (text.isEmpty()) {
+	delete d->hb;
+	d->hb = 0;
+	setSizes();
+    } else {
+	if (!d->hb) {
+	    d->hb = new QPushButton(this, "give help");
+	    connect(d->hb, SIGNAL(clicked()),
+		     this, SIGNAL(helpButtonPressed()));
+	    setUpLayout();
+	}
+	d->hb->setText(text);
+	setSizes();
+	//d->hb->show();
+    }
+}
+
+
+/*!
+    \overload
+
+  Adds a Help button to the dialog. The button's text is set to
+  a localizable "Help".
+ */
+void Q3TabDialog::setHelpButton()
+{
+    setHelpButton(tr("Help"));
+}
+
+/*!
+  Adds a Defaults button to the dialog. The button's text is set to \a
+  text.
+
+  The Defaults button should set the dialog (but not the application)
+  back to the application defaults.
+
+  When Defaults is clicked, the defaultButtonPressed() signal is emitted.
+
+  If \a text is an empty string, no button is shown.
+
+  \sa setApplyButton() setCancelButton() defaultButtonPressed()
+*/
+
+void Q3TabDialog::setDefaultButton(const QString &text)
+{
+    if (text.isEmpty()) {
+	delete d->db;
+	d->db = 0;
+	setSizes();
+    } else {
+	if (!d->db) {
+	    d->db = new QPushButton(this, "back to default");
+	    connect(d->db, SIGNAL(clicked()),
+		     this, SIGNAL(defaultButtonPressed()));
+	    setUpLayout();
+	}
+	d->db->setText(text);
+	setSizes();
+	//d->db->show();
+    }
+}
+
+
+/*!
+    \overload
+
+  Adds a Defaults button to the dialog. The button's text is set to
+  a localizable "Defaults".
+ */
+void Q3TabDialog::setDefaultButton()
+{
+    setDefaultButton(tr("Defaults"));
+}
+
+/*!
+  Adds a Cancel button to the dialog. The button's text is set to \a
+  text.
+
+  The cancel button should always return the application to the state
+  it was in before the tab view popped up, or if the user has clicked
+  Apply, back to the state immediately after the last Apply.
+
+  When Cancel is clicked, the cancelButtonPressed() signal is emitted.
+  The dialog is closed at the same time.
+
+  If \a text is an empty string, no button is shown.
+
+  \sa setApplyButton() setDefaultButton() cancelButtonPressed()
+*/
+
+void Q3TabDialog::setCancelButton(const QString &text)
+{
+    if (text.isEmpty()) {
+	delete d->cb;
+	d->cb = 0;
+	setSizes();
+    } else {
+	if (!d->cb) {
+	    d->cb = new QPushButton(this, "cancel dialog");
+	    connect(d->cb, SIGNAL(clicked()),
+		     this, SIGNAL(cancelButtonPressed()));
+	    connect(d->cb, SIGNAL(clicked()),
+		     this, SLOT(reject()));
+	    setUpLayout();
+	}
+	d->cb->setText(text);
+	setSizes();
+	//d->cb->show();
+    }
+}
+
+
+/*!
+    \overload
+
+  Adds a Cancel button to the dialog. The button's text is set to
+  a localizable "Cancel".
+ */
+
+void Q3TabDialog::setCancelButton()
+{
+    setCancelButton(tr("Cancel"));
+}
+
+/*!  Sets up the layout manager for the tab dialog.
+
+  \sa setSizes() setApplyButton() setCancelButton() setDefaultButton()
+*/
+
+void Q3TabDialog::setUpLayout()
+{
+    // the next four are probably the same, really?
+    const int topMargin = 6;
+    const int leftMargin = 6;
+    const int rightMargin = 6;
+    const int bottomMargin = 6;
+    const int betweenButtonsMargin = 7;
+    const int aboveButtonsMargin = 8;
+
+    delete d->tll;
+    d->tll = new QBoxLayout(this, QBoxLayout::Down);
+
+    // top margin
+    d->tll->addSpacing(topMargin);
+
+    QBoxLayout * tmp = new QHBoxLayout();
+    d->tll->addLayout(tmp, 1);
+    tmp->addSpacing(leftMargin);
+    tmp->addWidget(d->tw, 1);
+    tmp->addSpacing(rightMargin + 2);
+
+    d->tll->addSpacing(aboveButtonsMargin + 2);
+    QBoxLayout * buttonRow = new QBoxLayout(QBoxLayout::RightToLeft);
+    d->tll->addLayout(buttonRow, 0);
+    d->tll->addSpacing(bottomMargin);
+
+    buttonRow->addSpacing(rightMargin);
+    if (d->cb) {
+	buttonRow->addWidget(d->cb, 0);
+	buttonRow->addSpacing(betweenButtonsMargin);
+	d->cb->raise();
+    }
+
+    if (d->ab) {
+	buttonRow->addWidget(d->ab, 0);
+	buttonRow->addSpacing(betweenButtonsMargin);
+	d->ab->raise();
+    }
+
+    if (d->db) {
+	buttonRow->addWidget(d->db, 0);
+	buttonRow->addSpacing(betweenButtonsMargin);
+	d->db->raise();
+    }
+
+    if (d->hb) {
+	buttonRow->addWidget(d->hb, 0);
+	buttonRow->addSpacing(betweenButtonsMargin);
+	d->hb->raise();
+    }
+
+    if (d->ok) {
+	buttonRow->addWidget(d->ok, 0);
+	buttonRow->addSpacing(betweenButtonsMargin);
+	d->ok->raise();
+    }
+
+    // add one custom widget here
+    buttonRow->addStretch(1);
+    // add another custom widget here
+
+    d->tll->activate();
+}
+
+
+/*!  Sets up the minimum and maximum sizes for each child widget.
+
+  \sa setUpLayout() setFont()
+*/
+
+void Q3TabDialog::setSizes()
+{
+    // compute largest button size
+    QSize s(0, 0);
+    int bw = s.width();
+    int bh = s.height();
+
+    if (d->ok) {
+	s = d->ok->sizeHint();
+	if (s.width() > bw)
+	    bw = s.width();
+	if (s.height() > bh)
+	    bh = s.height();
+    }
+
+    if (d->ab) {
+	s = d->ab->sizeHint();
+	if (s.width() > bw)
+	    bw = s.width();
+	if (s.height() > bh)
+	    bh = s.height();
+    }
+
+    if (d->db) {
+	s = d->db->sizeHint();
+	if (s.width() > bw)
+	    bw = s.width();
+	if (s.height() > bh)
+	    bh = s.height();
+    }
+
+    if (d->hb) {
+	s = d->hb->sizeHint();
+	if (s.width() > bw)
+	    bw = s.width();
+	if (s.height() > bh)
+	    bh = s.height();
+    }
+
+    if (d->cb) {
+	s = d->cb->sizeHint();
+	if (s.width() > bw)
+	    bw = s.width();
+	if (s.height() > bh)
+	    bh = s.height();
+    }
+
+    // and set all the buttons to that size
+    if (d->ok)
+	d->ok->setFixedSize(bw, bh);
+    if (d->ab)
+	d->ab->setFixedSize(bw, bh);
+    if (d->db)
+	d->db->setFixedSize(bw, bh);
+    if (d->hb)
+	d->hb->setFixedSize(bw, bh);
+    if (d->cb)
+	d->cb->setFixedSize(bw, bh);
+
+    // fiddle the tab chain so the buttons are in their natural order
+    QWidget * w = d->ok;
+
+    if (d->hb) {
+	if (w)
+	    setTabOrder(w, d->hb);
+	w = d->hb;
+    }
+    if (d->db) {
+	if (w)
+	    setTabOrder(w, d->db);
+	w = d->db;
+    }
+    if (d->ab) {
+	if (w)
+	    setTabOrder(w, d->ab);
+	w = d->ab;
+    }
+    if (d->cb) {
+	if (w)
+	    setTabOrder(w, d->cb);
+	w = d->cb;
+    }
+    setTabOrder(w, d->tw);
+}
+
+/*!\reimp
+*/
+void Q3TabDialog::resizeEvent(QResizeEvent * e)
+{
+    QDialog::resizeEvent(e);
+}
+
+
+/*!\reimp
+*/
+void Q3TabDialog::paintEvent(QPaintEvent *)
+{
+}
+
+
+/*!\reimp
+*/
+void Q3TabDialog::showEvent(QShowEvent *e)
+{
+    if (!e->spontaneous())
+        show();
+    QDialog::showEvent(e);
+}
+
+
+/*!
+  Adds an OK button to the dialog and sets the button's text to \a text.
+
+  When the OK button is clicked, the applyButtonPressed() signal is emitted,
+  and the current settings in the dialog box should be applied to
+  the application. The dialog then closes.
+
+  If \a text is an empty string, no button is shown.
+
+  \sa setCancelButton() setDefaultButton() applyButtonPressed()
+*/
+
+void Q3TabDialog::setOkButton(const QString &text)
+{
+    if (text.isEmpty()) {
+	delete d->ok;
+	d->ok = 0;
+	setSizes();
+    } else {
+	if (!d->ok) {
+	    d->ok = new QPushButton(this, "ok");
+	    connect(d->ok, SIGNAL(clicked()),
+		     this, SIGNAL(applyButtonPressed()));
+	    setUpLayout();
+	}
+	d->ok->setText(text);
+	setSizes();
+	//d->ok->show();
+    }
+}
+/*!
+  \overload
+
+  Adds an OK button to the dialog. The button's text is set to
+  a localizable "OK".
+ */
+
+void Q3TabDialog::setOkButton()
+{
+    setOkButton(tr("OK"));
+}
+
+
+/*
+    \overload
+  Old version of setOkButton(), provided for backward compatibility.
+*/
+void Q3TabDialog::setOKButton(const QString &text)
+{
+    // Ugly workaround for original "OK" default argument
+    QString newText(text);
+    if (text.isNull())
+	newText = QString::fromLatin1("OK");
+    setOkButton(newText);
+}
+
+
+/*!  Returns the text in the tab for page \a w.
+*/
+
+QString Q3TabDialog::tabLabel(QWidget * w)
+{
+    return d->tw->tabLabel(w);
+}
+
+
+/*!  \internal
+*/
+void Q3TabDialog::styleChange(QStyle& s)
+{
+    QDialog::styleChange(s);
+    setSizes();
+}
+
+
+/*!  Returns a pointer to the page currently being displayed by the
+tab dialog. The tab dialog does its best to make sure that this value
+is never 0 (but if you try hard enough, it can be).
+*/
+
+QWidget * Q3TabDialog::currentPage() const
+{
+    return d->tw->currentPage();
+}
+
+/*!
+ \overload
+  Defines a new \a label for the tab of page \a w
+ */
+void Q3TabDialog::changeTab(QWidget *w, const QString &label)
+{
+    d->tw->changeTab(w, label);
+}
+
+/*!
+    Changes tab page \a w's iconset to \a iconset and label to \a label.
+
+ */
+void Q3TabDialog::changeTab(QWidget *w, const QIcon& iconset, const QString &label)
+{
+    d->tw->changeTab(w, iconset, label);
+}
+
+/*! Removes page \a w from this stack of widgets. Does not
+  delete \a w.
+  \sa showPage(), QTabWidget::removePage()
+*/
+void Q3TabDialog::removePage(QWidget * w)
+{
+    d->tw->removePage(w);
+}
+
+QT_END_NAMESPACE