diff -r dee5afe5301f -r 3f74d0d4af4c doc/src/snippets/code/doc_src_styles.qdoc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doc/src/snippets/code/doc_src_styles.qdoc	Thu Apr 08 14:19:33 2010 +0300
@@ -0,0 +1,135 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//! [0]
+    opt.initFrom(q);
+        if (down)
+        opt.state |= QStyle::State_Sunken;
+    if (tristate && noChange)
+        opt.state |= QStyle::State_NoChange;
+    else
+        opt.state |= checked ? QStyle::State_On :
+        QStyle::State_Off;
+    if (q->testAttribute(Qt::WA_Hover) &&  q->underMouse()) {
+        if (hovering)
+        opt.state |= QStyle::State_MouseOver;
+        else
+        opt.state &= ~QStyle::State_MouseOver;
+    }
+    opt.text = text;
+    opt.icon = icon;
+    opt.iconSize = q->iconSize();
+//! [0]
+
+
+//! [1]
+    state = QStyle::State_None;
+    if (widget->isEnabled())
+        state |= QStyle::State_Enabled;
+    if (widget->hasFocus())
+        state |= QStyle::State_HasFocus;
+    if (widget->window()->testAttribute(Qt::WA_KeyboardFocusChange))
+        state |= QStyle::State_KeyboardFocusChange;
+    if (widget->underMouse())
+        state |= QStyle::State_MouseOver;
+    if (widget->window()->isActiveWindow())
+        state |= QStyle::State_Active;
+#ifdef Q_WS_MAC
+    extern bool qt_mac_can_clickThrough(const QWidget *w); //qwidget_mac.cpp
+    if (!(state & QStyle::State_Active) && !qt_mac_can_clickThrough(widget))
+        state &= ~QStyle::State_Enabled;
+#endif
+#ifdef QT_KEYPAD_NAVIGATION
+    if (widget->hasEditFocus())
+        state |= QStyle::State_HasEditFocus;
+#endif
+
+    direction = widget->layoutDirection();
+    rect = widget->rect();
+    palette = widget->palette();
+    fontMetrics = widget->fontMetrics();
+//! [1]
+
+
+//! [2]
+    QStylePainter p(this);
+    QStyleOptionButton opt = d->getStyleOption();
+    p.drawControl(QStyle::CE_CheckBox, opt);
+//! [2]
+
+
+//! [3]
+    QStyleOptionButton subopt = *btn;
+    subopt.rect = subElementRect(SE_CheckBoxIndicator, btn, widget);
+    drawPrimitive(PE_IndicatorCheckBox, &subopt, p, widget);
+    subopt.rect = subElementRect(SE_CheckBoxContents, btn, widget);
+    drawControl(CE_CheckBoxLabel, &subopt, p, widget);
+
+    if (btn->state & State_HasFocus) {
+        QStyleOptionFocusRect fropt;
+        fropt.QStyleOption::operator=(*btn);
+        fropt.rect = subElementRect(SE_CheckBoxFocusRect, btn, widget);
+        drawPrimitive(PE_FrameFocusRect, &fropt, p, widget);
+    }
+//! [3]
+
+
+//! [4]
+    const QStyleOptionButton *btn = qstyleoption_cast<const QStyleOptionButton *>(opt);
+    uint alignment = visualAlignment(btn->direction, Qt::AlignLeft | Qt::AlignVCenter);
+
+    if (!styleHint(SH_UnderlineShortcut, btn, widget))
+        alignment |= Qt::TextHideMnemonic;
+    QPixmap pix;
+    QRect textRect = btn->rect;
+    if (!btn->icon.isNull()) {
+        pix = btn->icon.pixmap(btn->iconSize, btn->state & State_Enabled ? QIcon::Normal : QIcon::Disabled);
+        drawItemPixmap(p, btn->rect, alignment, pix);
+        if (btn->direction == Qt::RightToLeft)
+            textRect.setRight(textRect.right() - btn->iconSize.width() - 4);
+        else
+            textRect.setLeft(textRect.left() + btn->iconSize.width() + 4);
+    }
+    if (!btn->text.isEmpty()){
+        drawItemText(p, textRect, alignment | Qt::TextShowMnemonic,
+            btn->palette, btn->state & State_Enabled, btn->text, QPalette::WindowText);
+    }
+//! [4]