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178 lines
5.5 KiB
178 lines
5.5 KiB
/****************************************************************************
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**
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** Definition of QRegion class
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**
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** Created : 940514
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**
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** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
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**
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** This file is part of the kernel module of the Qt GUI Toolkit.
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**
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** This file may be used under the terms of the GNU General
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** Public License versions 2.0 or 3.0 as published by the Free
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** Software Foundation and appearing in the files LICENSE.GPL2
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** and LICENSE.GPL3 included in the packaging of this file.
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** Alternatively you may (at your option) use any later version
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** of the GNU General Public License if such license has been
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** publicly approved by Trolltech ASA (or its successors, if any)
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** and the KDE Free Qt Foundation.
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**
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** Please review the following information to ensure GNU General
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** Public Licensing requirements will be met:
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** http://trolltech.com/products/qt/licenses/licensing/opensource/.
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** If you are unsure which license is appropriate for your use, please
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** review the following information:
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** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
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** or contact the sales department at sales@trolltech.com.
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**
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** This file may be used under the terms of the Q Public License as
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** defined by Trolltech ASA and appearing in the file LICENSE.QPL
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** included in the packaging of this file. Licensees holding valid Qt
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** Commercial licenses may use this file in accordance with the Qt
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** Commercial License Agreement provided with the Software.
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**
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** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
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** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
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** herein.
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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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#ifndef QT_H
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#include "qshared.h"
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#include "qrect.h"
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#endif // QT_H
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#ifdef Q_WS_X11
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struct QRegionPrivate;
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#endif
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class Q_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 = Rectangle );
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QRegion( const QRect &, RegionType = Rectangle );
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QRegion( const QPointArray &, bool winding=FALSE );
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QRegion( const QRegion & );
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QRegion( const QBitmap & );
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~QRegion();
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QRegion &operator=( const QRegion & );
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bool isNull() const;
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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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QRegion unite( const QRegion & ) const;
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QRegion intersect( const QRegion &) const;
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QRegion subtract( const QRegion & ) const;
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QRegion eor( const QRegion & ) const;
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QRect boundingRect() const;
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QMemArray<QRect> rects() const;
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void setRects( const QRect *, int );
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const QRegion operator|( const QRegion & ) const;
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const QRegion operator+( const QRegion & ) const;
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const QRegion operator&( const QRegion & ) const;
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const QRegion operator-( const QRegion & ) const;
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const QRegion operator^( const QRegion & ) const;
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QRegion& operator|=( const QRegion & );
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QRegion& operator+=( const QRegion & );
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QRegion& operator&=( const QRegion & );
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QRegion& operator-=( const QRegion & );
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QRegion& operator^=( const QRegion & );
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bool operator==( const QRegion & ) const;
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bool operator!=( const QRegion &r ) const
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{ return !(operator==(r)); }
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#if defined(Q_WS_WIN)
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HRGN handle() const { return data->rgn; }
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#elif defined(Q_WS_X11)
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Region handle() const { if(!data->rgn) updateX11Region(); return data->rgn; }
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#elif defined(Q_WS_MAC)
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RgnHandle handle(bool require_rgn=FALSE) const;
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#elif defined(Q_WS_QWS)
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// QGfx_QWS needs this for region drawing
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void * handle() const { return data->rgn; }
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#endif
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#ifndef QT_NO_DATASTREAM
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friend Q_EXPORT QDataStream &operator<<( QDataStream &, const QRegion & );
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friend Q_EXPORT QDataStream &operator>>( QDataStream &, QRegion & );
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#endif
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private:
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QRegion( bool );
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QRegion copy() const;
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void detach();
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#if defined(Q_WS_WIN)
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QRegion winCombine( const QRegion &, int ) const;
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#endif
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#if 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 &, int & );
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#endif
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void exec( const QByteArray &, int ver = 0 );
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struct QRegionData : public QShared {
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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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QRegionPrivate *region;
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#elif defined(Q_WS_MAC)
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uint is_rect:1;
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QRect rect;
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RgnHandle rgn;
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#elif defined(Q_WS_QWS)
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void * rgn;
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#endif
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bool is_null;
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} *data;
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#if defined(Q_WS_MAC)
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friend struct qt_mac_rgn_data_cache;
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friend QRegionData *qt_mac_get_rgn_data();
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friend void qt_mac_free_rgn_data(QRegionData *);
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void rectifyRegion();
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#elif defined(Q_WS_WIN)
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friend class QETWidget;
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#endif
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};
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#define QRGN_SETRECT 1 // region stream commands
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#define QRGN_SETELLIPSE 2 // (these are internal)
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#define QRGN_SETPTARRAY_ALT 3
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#define QRGN_SETPTARRAY_WIND 4
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#define QRGN_TRANSLATE 5
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#define QRGN_OR 6
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#define QRGN_AND 7
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#define QRGN_SUB 8
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#define QRGN_XOR 9
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#define QRGN_RECTS 10
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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_EXPORT QDataStream &operator<<( QDataStream &, const QRegion & );
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Q_EXPORT QDataStream &operator>>( QDataStream &, QRegion & );
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#endif
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#endif // QREGION_H
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