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236 lines
8.1 KiB
236 lines
8.1 KiB
15 years ago
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial Usage
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QREGION_H
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#define QREGION_H
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#include <QtCore/qatomic.h>
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#include <QtCore/qrect.h>
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#include <QtGui/qwindowdefs.h>
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#ifndef QT_NO_DATASTREAM
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#include <QtCore/qdatastream.h>
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#endif
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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QT_MODULE(Gui)
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template <class T> class QVector;
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class QVariant;
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#if defined(Q_WS_QWS) || defined(Q_WS_X11) || defined(Q_WS_MAC) || defined(Q_WS_WIN) || defined(Q_OS_SYMBIAN)
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struct QRegionPrivate;
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#endif
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class QBitmap;
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class Q_GUI_EXPORT QRegion
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{
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public:
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enum RegionType { Rectangle, Ellipse };
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QRegion();
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QRegion(int x, int y, int w, int h, RegionType t = Rectangle);
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QRegion(const QRect &r, RegionType t = Rectangle);
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QRegion(const QPolygon &pa, Qt::FillRule fillRule = Qt::OddEvenFill);
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#ifdef QT3_SUPPORT
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QT3_SUPPORT_CONSTRUCTOR QRegion(const QPolygon &pa, bool winding);
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#endif
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QRegion(const QRegion ®ion);
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QRegion(const QBitmap &bitmap);
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~QRegion();
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QRegion &operator=(const QRegion &);
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#ifdef QT3_SUPPORT
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inline QT3_SUPPORT bool isNull() const { return isEmpty(); }
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#endif
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bool isEmpty() const;
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bool contains(const QPoint &p) const;
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bool contains(const QRect &r) const;
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void translate(int dx, int dy);
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inline void translate(const QPoint &p) { translate(p.x(), p.y()); }
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QRegion translated(int dx, int dy) const;
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inline QRegion translated(const QPoint &p) const { return translated(p.x(), p.y()); }
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// ### Qt 5: make these four functions QT4_SUPPORT
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QRegion unite(const QRegion &r) const;
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QRegion unite(const QRect &r) const;
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QRegion intersect(const QRegion &r) const;
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QRegion intersect(const QRect &r) const;
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QRegion subtract(const QRegion &r) const;
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QRegion eor(const QRegion &r) const;
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inline QRegion united(const QRegion &r) const { return unite(r); }
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inline QRegion united(const QRect &r) const { return unite(r); }
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inline QRegion intersected(const QRegion &r) const { return intersect(r); }
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inline QRegion intersected(const QRect &r) const { return intersect(r); }
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inline QRegion subtracted(const QRegion &r) const { return subtract(r); }
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inline QRegion xored(const QRegion &r) const { return eor(r); }
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bool intersects(const QRegion &r) const;
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bool intersects(const QRect &r) const;
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QRect boundingRect() const;
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QVector<QRect> rects() const;
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void setRects(const QRect *rect, int num);
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#ifdef QT_DEPRECATED
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QT_DEPRECATED int numRects() const;
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#endif
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int rectCount() const;
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const QRegion operator|(const QRegion &r) const;
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const QRegion operator+(const QRegion &r) const;
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const QRegion operator+(const QRect &r) const;
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const QRegion operator&(const QRegion &r) const;
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const QRegion operator&(const QRect &r) const;
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const QRegion operator-(const QRegion &r) const;
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const QRegion operator^(const QRegion &r) const;
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QRegion& operator|=(const QRegion &r);
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QRegion& operator+=(const QRegion &r);
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QRegion& operator+=(const QRect &r);
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QRegion& operator&=(const QRegion &r);
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QRegion& operator&=(const QRect &r);
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QRegion& operator-=(const QRegion &r);
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QRegion& operator^=(const QRegion &r);
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bool operator==(const QRegion &r) const;
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inline bool operator!=(const QRegion &r) const { return !(operator==(r)); }
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operator QVariant() const;
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#ifdef qdoc
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Handle handle() const;
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#endif
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#ifndef qdoc
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#if defined(Q_WS_WIN)
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inline HRGN handle() const { ensureHandle(); return d->rgn; }
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#elif defined(Q_WS_X11)
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inline Region handle() const { if(!d->rgn) updateX11Region(); return d->rgn; }
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#elif defined(Q_WS_MAC)
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#if defined Q_WS_MAC32
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RgnHandle toQDRgn() const;
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RgnHandle toQDRgnForUpdate_sys() const;
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static QRegion fromQDRgn(RgnHandle shape);
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#endif
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#ifdef QT_MAC_USE_COCOA
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inline HIMutableShapeRef handle(bool unused = false) const
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{ Q_UNUSED(unused); return toHIMutableShape(); }
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#else
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inline RgnHandle handle() const { return handle(false); }
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inline RgnHandle handle(bool) const { return toQDRgn(); }
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#endif
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HIMutableShapeRef toHIMutableShape() const;
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static QRegion fromHIShapeRef(HIShapeRef shape);
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#elif defined(Q_WS_QWS)
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inline void *handle() const { return d->qt_rgn; }
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#endif
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#endif
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#ifndef QT_NO_DATASTREAM
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friend Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QRegion &);
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friend Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QRegion &);
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#endif
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private:
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QRegion copy() const; // helper of detach.
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void detach();
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#if defined(Q_WS_WIN)
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void ensureHandle() const;
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QRegion winCombine(const QRegion &r, int num) const;
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#elif defined(Q_WS_X11)
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void updateX11Region() const;
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void *clipRectangles(int &num) const;
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friend void *qt_getClipRects(const QRegion &r, int &num);
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#elif defined(Q_WS_MAC)
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static OSStatus shape2QRegionHelper(int inMessage, HIShapeRef inShape,
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const CGRect *inRect, void *inRefcon);
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#endif
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friend bool qt_region_strictContains(const QRegion ®ion,
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const QRect &rect);
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friend struct QRegionPrivate;
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#ifndef QT_NO_DATASTREAM
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void exec(const QByteArray &ba, int ver = 0, QDataStream::ByteOrder byteOrder = QDataStream::BigEndian);
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#endif
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struct QRegionData {
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QBasicAtomicInt ref;
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#if defined(Q_WS_WIN)
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HRGN rgn;
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#elif defined(Q_WS_X11)
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Region rgn;
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void *xrectangles;
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#elif defined(Q_WS_MAC) && !defined(QT_MAC_USE_COCOA)
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mutable RgnHandle unused; // Here for binary compatability reasons. ### Qt 5 remove.
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#endif
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#if defined(Q_WS_QWS) || defined(Q_WS_X11) || defined(Q_WS_MAC) || defined(Q_WS_WIN) || defined(Q_OS_SYMBIAN)
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QRegionPrivate *qt_rgn;
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#endif
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};
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#if defined(Q_WS_WIN)
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friend class QETWidget;
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#endif
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struct QRegionData *d;
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static struct QRegionData shared_empty;
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static void cleanUp(QRegionData *x);
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};
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/*****************************************************************************
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QRegion stream functions
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*****************************************************************************/
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#ifndef QT_NO_DATASTREAM
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Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QRegion &);
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Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QRegion &);
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#endif
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#ifndef QT_NO_DEBUG_STREAM
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Q_GUI_EXPORT QDebug operator<<(QDebug, const QRegion &);
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#endif
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif // QREGION_H
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