doc/src/snippets/code/doc_src_qt4-styles.qdoc
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the documentation of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
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    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
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    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
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    24 ** In addition, as a special exception, Nokia gives you certain additional
       
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    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 //! [0]
       
    43 const QStyleOptionFocusRect *focusRectOption =
       
    44         qstyleoption_cast<const QStyleOptionFocusRect *>(option);
       
    45 if (focusRectOption) {
       
    46     ...
       
    47 }
       
    48 //! [0]
       
    49 
       
    50 
       
    51 //! [1]
       
    52 void MyWidget::paintEvent(QPaintEvent *event)
       
    53 {
       
    54     QPainter painter(this);
       
    55     ...
       
    56 
       
    57     QStyleOptionFocusRect option(1);
       
    58     option.init(this);
       
    59     option.backgroundColor = palette().color(QPalette::Window);
       
    60 
       
    61     style().drawPrimitive(QStyle::PE_FrameFocusRect, &option, &painter,
       
    62                           this);
       
    63 }
       
    64 //! [1]
       
    65 
       
    66 
       
    67 //! [2]
       
    68 void drawControl(ControlElement element,
       
    69                  QPainter *painter,
       
    70                  const QWidget *widget,
       
    71                  const QRect &rect,
       
    72                  const QColorGroup &colorGroup,
       
    73                  SFlags how = Style_Default,
       
    74                  const QStyleOption &option = QStyleOption::Default) const;
       
    75 //! [2]
       
    76 
       
    77 
       
    78 //! [3]
       
    79 void drawControl(ControlElement element,
       
    80                  const QStyleOption *option,
       
    81                  QPainter *painter,
       
    82                  const QWidget *widget = 0) const;
       
    83 //! [3]