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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtGui 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QREGION_H
+#define QREGION_H
+
+#include <QtCore/qatomic.h>
+#include <QtCore/qrect.h>
+#include <QtGui/qwindowdefs.h>
+
+#ifndef QT_NO_DATASTREAM
+#include <QtCore/qdatastream.h>
+#endif
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Gui)
+
+template <class T> class QVector;
+class QVariant;
+
+#if defined(Q_WS_QWS) || defined(Q_WS_X11) || defined(Q_WS_MAC) || defined(Q_OS_WINCE)
+struct QRegionPrivate;
+#endif
+
+class QBitmap;
+
+class Q_GUI_EXPORT QRegion
+{
+public:
+ enum RegionType { Rectangle, Ellipse };
+
+ QRegion();
+ QRegion(int x, int y, int w, int h, RegionType t = Rectangle);
+ QRegion(const QRect &r, RegionType t = Rectangle);
+ QRegion(const QPolygon &pa, Qt::FillRule fillRule = Qt::OddEvenFill);
+#ifdef QT3_SUPPORT
+ QT3_SUPPORT_CONSTRUCTOR QRegion(const QPolygon &pa, bool winding);
+#endif
+ QRegion(const QRegion &region);
+ QRegion(const QBitmap &bitmap);
+ ~QRegion();
+ QRegion &operator=(const QRegion &);
+
+#ifdef QT3_SUPPORT
+ inline QT3_SUPPORT bool isNull() const { return isEmpty(); }
+#endif
+ bool isEmpty() const;
+
+ bool contains(const QPoint &p) const;
+ bool contains(const QRect &r) const;
+
+ void translate(int dx, int dy);
+ inline void translate(const QPoint &p) { translate(p.x(), p.y()); }
+ QRegion translated(int dx, int dy) const;
+ inline QRegion translated(const QPoint &p) const { return translated(p.x(), p.y()); }
+
+ // ### Qt 5: make these four functions QT4_SUPPORT
+ QRegion unite(const QRegion &r) const;
+ QRegion unite(const QRect &r) const;
+ QRegion intersect(const QRegion &r) const;
+ QRegion intersect(const QRect &r) const;
+ QRegion subtract(const QRegion &r) const;
+ QRegion eor(const QRegion &r) const;
+
+ inline QRegion united(const QRegion &r) const { return unite(r); }
+ inline QRegion united(const QRect &r) const { return unite(r); }
+ inline QRegion intersected(const QRegion &r) const { return intersect(r); }
+ inline QRegion intersected(const QRect &r) const { return intersect(r); }
+ inline QRegion subtracted(const QRegion &r) const { return subtract(r); }
+ inline QRegion xored(const QRegion &r) const { return eor(r); }
+
+ bool intersects(const QRegion &r) const;
+ bool intersects(const QRect &r) const;
+
+ QRect boundingRect() const;
+ QVector<QRect> rects() const;
+ void setRects(const QRect *rect, int num);
+ int numRects() const;
+
+ const QRegion operator|(const QRegion &r) const;
+ const QRegion operator+(const QRegion &r) const;
+ const QRegion operator+(const QRect &r) const;
+ const QRegion operator&(const QRegion &r) const;
+ const QRegion operator&(const QRect &r) const;
+ const QRegion operator-(const QRegion &r) const;
+ const QRegion operator^(const QRegion &r) const;
+ QRegion& operator|=(const QRegion &r);
+ QRegion& operator+=(const QRegion &r);
+ QRegion& operator+=(const QRect &r);
+ QRegion& operator&=(const QRegion &r);
+ QRegion& operator&=(const QRect &r);
+ QRegion& operator-=(const QRegion &r);
+ QRegion& operator^=(const QRegion &r);
+
+ bool operator==(const QRegion &r) const;
+ inline bool operator!=(const QRegion &r) const { return !(operator==(r)); }
+ operator QVariant() const;
+
+#ifdef qdoc
+ Handle handle() const;
+#endif
+#ifndef qdoc
+#if defined(Q_WS_WIN)
+ inline HRGN handle() const { ensureHandle(); return d->rgn; }
+#elif defined(Q_WS_X11)
+ inline Region handle() const { if(!d->rgn) updateX11Region(); return d->rgn; }
+#elif defined(Q_WS_MAC)
+#if defined Q_WS_MAC32
+ RgnHandle toQDRgn() const;
+ static QRegion fromQDRgn(RgnHandle shape);
+#endif
+#ifdef QT_MAC_USE_COCOA
+ inline HIMutableShapeRef handle(bool unused = false) const
+ { Q_UNUSED(unused); return toHIMutableShape(); }
+#else
+ inline RgnHandle handle() const { return handle(false); }
+ inline RgnHandle handle(bool) const { return toQDRgn(); }
+#endif
+ HIMutableShapeRef toHIMutableShape() const;
+ static QRegion fromHIShapeRef(HIShapeRef shape);
+#elif defined(Q_WS_QWS)
+ inline void *handle() const { return d->qt_rgn; }
+#endif
+#endif
+
+#ifndef QT_NO_DATASTREAM
+ friend Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QRegion &);
+ friend Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QRegion &);
+#endif
+private:
+ QRegion copy() const; // helper of detach.
+ void detach();
+#if defined(Q_WS_WIN)
+ void ensureHandle() const;
+ QRegion winCombine(const QRegion &r, int num) const;
+#elif defined(Q_WS_X11)
+ void updateX11Region() const;
+ void *clipRectangles(int &num) const;
+ friend void *qt_getClipRects(const QRegion &r, int &num);
+#elif defined(Q_WS_MAC)
+ static OSStatus shape2QRegionHelper(int inMessage, HIShapeRef inShape,
+ const CGRect *inRect, void *inRefcon);
+#endif
+ friend bool qt_region_strictContains(const QRegion &region,
+ const QRect &rect);
+ friend struct QRegionPrivate;
+
+#ifndef QT_NO_DATASTREAM
+ void exec(const QByteArray &ba, int ver = 0, QDataStream::ByteOrder byteOrder = QDataStream::BigEndian);
+#endif
+ struct QRegionData {
+ QBasicAtomicInt ref;
+#if defined(Q_WS_WIN)
+ HRGN rgn;
+#elif defined(Q_WS_X11)
+ Region rgn;
+ void *xrectangles;
+#elif defined(Q_WS_MAC) && !defined(QT_MAC_USE_COCOA)
+ mutable RgnHandle unused; // Here for binary compatability reasons. ### Qt 5 remove.
+#endif
+#if defined(Q_WS_QWS) || defined(Q_WS_X11) || defined(Q_WS_MAC) || defined(Q_OS_WINCE)
+ QRegionPrivate *qt_rgn;
+#endif
+ };
+#if defined(Q_WS_WIN)
+ friend class QETWidget;
+#endif
+ struct QRegionData *d;
+ static struct QRegionData shared_empty;
+ static void cleanUp(QRegionData *x);
+};
+
+/*****************************************************************************
+ QRegion stream functions
+ *****************************************************************************/
+
+#ifndef QT_NO_DATASTREAM
+Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QRegion &);
+Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QRegion &);
+#endif
+
+#ifndef QT_NO_DEBUG_STREAM
+Q_GUI_EXPORT QDebug operator<<(QDebug, const QRegion &);
+#endif
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QREGION_H
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