/**************************************************************************** ** ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). ** Contact: Nokia Corporation (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 http://www.qtsoftware.com/contact. ** $QT_END_LICENSE$ ** ****************************************************************************/ #ifndef QREGION_H #define QREGION_H #include #include #include #ifndef QT_NO_DATASTREAM #include #endif QT_BEGIN_HEADER QT_BEGIN_NAMESPACE QT_MODULE(Gui) template class QVector; class QVariant; #if defined(Q_WS_QWS) || defined(Q_WS_X11) || defined(Q_WS_MAC) || defined(Q_WS_WIN) || defined(Q_OS_SYMBIAN) 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 ®ion); 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 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; RgnHandle toQDRgnForUpdate_sys() 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 ®ion, 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_WS_WIN) || defined(Q_OS_SYMBIAN) 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