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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:FDL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Free Documentation License Usage
** Alternatively, this file may be used under the terms of the GNU Free
** Documentation License version 1.3 as published by the Free Software
** Foundation and appearing in the file included in the packaging of
** this file. Please review the following information to ensure
** the GNU Free Documentation License version 1.3 requirements
** will be met: http://www.gnu.org/copyleft/fdl.html.
** $QT_END_LICENSE$
**
****************************************************************************/


/*!
    \class QMacStyle
    \brief The QMacStyle class provides a OS X style using the Apple Appearance Manager.

    \ingroup appearance
    \inmodule QtWidgets
    \internal

    This class is implemented as a wrapper to the HITheme
    APIs, allowing applications to be styled according to the current
    theme in use on OS X. This is done by having primitives
    in QStyle implemented in terms of what OS X would normally theme.

    \warning This style is only available on OS X because it relies on the
    HITheme APIs.

    There are additional issues that should be taken
    into consideration to make an application compatible with the
    \l{Apple Human Interface Guidelines}{Apple Human Interface Guidelines}. Some of these issues are outlined
    below.

    \list

    \li Layout - The restrictions on window layout are such that some
    aspects of layout that are style-dependent cannot be achieved
    using QLayout. Changes are being considered (and feedback would be
    appreciated) to make layouts QStyle-able. Some of the restrictions
    involve horizontal and vertical widget alignment and widget size
    (covered below).

    \li Widget size - OS X allows widgets to have specific fixed sizes.  Qt
    does not fully implement this behavior so as to maintain cross-platform
    compatibility. As a result some widgets sizes may be inappropriate (and
    subsequently not rendered correctly by the HITheme APIs).The
    QWidget::sizeHint() will return the appropriate size for many
    managed widgets (widgets enumerated in \l QStyle::ContentsType).

    \li Effects - QMacStyle uses HITheme for performing most of the drawing, but
    also uses emulation in a few cases where HITheme does not provide the
    required functionality (for example, tab bars on Panther, the toolbar
    separator, etc). We tried to make the emulation as close to the original as
    possible. Please report any issues you see in effects or non-standard
    widgets.

    \endlist

    There are other issues that need to be considered in the feel of
    your application (including the general color scheme to match the
    Aqua colors). The Guidelines mentioned above will remain current
    with new advances and design suggestions for OS X.

    Note that the functions provided by QMacStyle are
    reimplementations of QStyle functions; see QStyle for their
    documentation.

    \image qmacstyle.png
    \sa QWindowsXPStyle, QWindowsStyle, QFusionStyle
*/


/*!
    \enum QMacStyle::WidgetSizePolicy

    \value SizeSmall
    \value SizeLarge
    \value SizeMini
    \value SizeDefault
*/

/*! \fn QMacStyle::QMacStyle()
    Constructs a QMacStyle object.
*/

/*! \fn QMacStyle::~QMacStyle()
    Destructs a QMacStyle object.
*/

/*! \fn void QMacStyle::polish(QPalette &pal)
    \reimp
*/

/*! \fn void QMacStyle::polish(QApplication *)
    \reimp
*/

/*! \fn void QMacStyle::unpolish(QApplication *)
    \reimp
*/

/*! \fn void QMacStyle::polish(QWidget* w)
    \reimp
*/

/*! \fn void QMacStyle::unpolish(QWidget* w)
    \reimp
*/

/*! \fn int QMacStyle::pixelMetric(PixelMetric metric, const QStyleOption *opt, const QWidget *widget) const
    \reimp
*/

/*! \fn QPalette QMacStyle::standardPalette() const
    \reimp
*/

/*! \fn int QMacStyle::styleHint(StyleHint sh, const QStyleOption *opt, const QWidget *w, QStyleHintReturn *hret) const
    \reimp
*/

/*! \fn QPixmap QMacStyle::generatedIconPixmap(QIcon::Mode iconMode, const QPixmap &pixmap, const QStyleOption *opt) const
    \reimp
*/

/*! \fn QPixmap QMacStyle::standardPixmap(StandardPixmap standardPixmap, const QStyleOption *opt, const QWidget *widget) const
    \reimp
*/

/*!
    \enum QMacStyle::FocusRectPolicy

    This type is used to signify a widget's focus rectangle policy.

    \value FocusEnabled  show a focus rectangle when the widget has focus.
    \value FocusDisabled  never show a focus rectangle for the widget.
    \value FocusDefault  show a focus rectangle when the widget has
    focus and the widget is a QSpinWidget, QDateTimeEdit, QLineEdit,
    QListBox, QListView, editable QTextEdit, or one of their
    subclasses.
*/

/*! \fn void QMacStyle::setFocusRectPolicy(QWidget *w, FocusRectPolicy policy)
    \obsolete
    Sets the focus rectangle policy of \a w. The \a policy can be one of
    \l{QMacStyle::FocusRectPolicy}.

    This is now simply an interface to the Qt::WA_MacShowFocusRect attribute and the
    FocusDefault value does nothing anymore. If you want to set a widget back
    to its default value, you must save the old value of the attribute before
    you change it.

    \sa focusRectPolicy(), QWidget::setAttribute()
*/

/*! \fn QMacStyle::FocusRectPolicy QMacStyle::focusRectPolicy(const QWidget *w)
    \obsolete
    Returns the focus rectangle policy for the widget \a w.

    The focus rectangle policy can be one of \l{QMacStyle::FocusRectPolicy}.

    In 4.3 and up this function will simply test for the
    Qt::WA_MacShowFocusRect attribute and will never return
    QMacStyle::FocusDefault.

    \sa setFocusRectPolicy(), QWidget::testAttribute()
*/

/*! \fn void QMacStyle::setWidgetSizePolicy(const QWidget *widget, WidgetSizePolicy policy)

    \obsolete

    Call QWidget::setAttribute() with Qt::WA_MacMiniSize, Qt::WA_MacSmallSize,
    or Qt::WA_MacNormalSize instead.
*/

/*! \fn QMacStyle::WidgetSizePolicy QMacStyle::widgetSizePolicy(const QWidget *widget, const QStyleOption *opt = 0)
    \obsolete

    Call QWidget::testAttribute() with Qt::WA_MacMiniSize, Qt::WA_MacSmallSize,
    or Qt::WA_MacNormalSize instead.
*/

/*! \fn void QMacStyle::drawPrimitive(PrimitiveElement pe, const QStyleOption *opt, QPainter *p, const QWidget *w) const

    \reimp
*/

/*! \fn void QMacStyle::drawControl(ControlElement ce, const QStyleOption *opt, QPainter *p, const QWidget *w) const

    \reimp
*/

/*! \fn QRect QMacStyle::subElementRect(SubElement sr, const QStyleOption *opt, const QWidget *widget) const

    \reimp
*/

/*! \fn void QMacStyle::drawComplexControl(ComplexControl cc, const QStyleOptionComplex *opt, QPainter *p, const QWidget *widget) const
    \reimp
*/

/*! \fn QStyle::SubControl QMacStyle::hitTestComplexControl(ComplexControl cc, const QStyleOptionComplex *opt, const QPoint &pt, const QWidget *widget) const
    \reimp
*/

/*! \fn QRect QMacStyle::subControlRect(ComplexControl cc, const QStyleOptionComplex *opt, SubControl sc, const QWidget *widget) const
    \reimp
*/

/*! \fn QSize QMacStyle::sizeFromContents(ContentsType ct, const QStyleOption *opt, const QSize &csz, const QWidget *widget) const
    \reimp
*/

/*! \fn void QMacStyle::drawItemText(QPainter *p, const QRect &r, int flags, const QPalette &pal, bool enabled, const QString &text, QPalette::ColorRole textRole) const
    \reimp
*/

/*! \fn bool QMacStyle::event(QEvent *e)
    \reimp
*/

/*! \fn QIcon QMacStyle::standardIcon(StandardPixmap standardIcon, const QStyleOption *opt, const QWidget *widget) const
    \reimp
*/

/*! \fn int QMacStyle::layoutSpacing(QSizePolicy::ControlType control1, QSizePolicy::ControlType control2, Qt::Orientation orientation, const QStyleOption *option, const QWidget *widget) const
    \reimp
*/