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diff --git a/doc/src/snippets/code/doc_src_styles.cpp b/doc/src/snippets/code/doc_src_styles.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//! [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]