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tqt3/doc/html/qregion-h.html

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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>qregion.h</h1>
<p>This is the verbatim text of the qregion.h include file. It is provided only for illustration; the copyright remains with Trolltech.
<hr>
<pre>
/****************************************************************************
** $Id: qt/qregion.h 3.3.8 edited Jan 11 14:38 $
**
** Definition of TQRegion class
**
** Created : 940514
**
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
**
** This file is part of the kernel module of the TQt GUI Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Alternatively you may (at your option) use any
** later version of the GNU General Public License if such license has
** been publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free TQt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
** included in the packaging of this file. Licensees holding valid TQt
** Commercial licenses may use this file in accordance with the TQt
** Commercial License Agreement provided with the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#ifndef TQREGION_H
#define TQREGION_H
#ifndef QT_H
#include "qshared.h"
#include "qrect.h"
#endif // QT_H
#ifdef Q_WS_X11
struct TQRegionPrivate;
#endif
class Q_EXPORT TQRegion
{
public:
enum RegionType { Rectangle, Ellipse };
TQRegion();
TQRegion( int x, int y, int w, int h, RegionType = Rectangle );
TQRegion( const TQRect &amp;, RegionType = Rectangle );
TQRegion( const TQPointArray &amp;, bool winding=FALSE );
TQRegion( const TQRegion &amp; );
TQRegion( const TQBitmap &amp; );
~TQRegion();
TQRegion &amp;operator=( const TQRegion &amp; );
bool isNull() const;
bool isEmpty() const;
bool contains( const TQPoint &amp;p ) const;
bool contains( const TQRect &amp;r ) const;
void translate( int dx, int dy );
TQRegion unite( const TQRegion &amp; ) const;
TQRegion intersect( const TQRegion &amp;) const;
TQRegion subtract( const TQRegion &amp; ) const;
TQRegion eor( const TQRegion &amp; ) const;
TQRect boundingRect() const;
TQMemArray&lt;TQRect&gt; rects() const;
void setRects( const TQRect *, int );
const TQRegion operator|( const TQRegion &amp; ) const;
const TQRegion operator+( const TQRegion &amp; ) const;
const TQRegion operator&amp;( const TQRegion &amp; ) const;
const TQRegion operator-( const TQRegion &amp; ) const;
const TQRegion operator^( const TQRegion &amp; ) const;
TQRegion&amp; operator|=( const TQRegion &amp; );
TQRegion&amp; operator+=( const TQRegion &amp; );
TQRegion&amp; operator&amp;=( const TQRegion &amp; );
TQRegion&amp; operator-=( const TQRegion &amp; );
TQRegion&amp; operator^=( const TQRegion &amp; );
bool operator==( const TQRegion &amp; ) const;
bool operator!=( const TQRegion &amp;r ) const
{ return !(operator==(r)); }
#if defined(Q_WS_WIN)
HRGN handle() const { return data-&gt;rgn; }
#elif defined(Q_WS_X11)
Region handle() const { if(!data-&gt;rgn) updateX11Region(); return data-&gt;rgn; }
#elif defined(Q_WS_MAC)
RgnHandle handle(bool require_rgn=FALSE) const;
#elif defined(Q_WS_QWS)
// TQGfx_QWS needs this for region drawing
void * handle() const { return data-&gt;rgn; }
#endif
#ifndef QT_NO_DATASTREAM
friend Q_EXPORT TQDataStream &amp;operator&lt;&lt;( TQDataStream &amp;, const TQRegion &amp; );
friend Q_EXPORT TQDataStream &amp;operator&gt;&gt;( TQDataStream &amp;, TQRegion &amp; );
#endif
private:
TQRegion( bool );
TQRegion copy() const;
void detach();
#if defined(Q_WS_WIN)
TQRegion winCombine( const TQRegion &amp;, int ) const;
#endif
#if defined(Q_WS_X11)
void updateX11Region() const;
void *clipRectangles( int &amp;num ) const;
friend void *qt_getClipRects( const TQRegion &amp;, int &amp; );
#endif
void exec( const TQByteArray &amp;, int ver = 0 );
struct TQRegionData : public TQShared {
#if defined(Q_WS_WIN)
HRGN rgn;
#elif defined(Q_WS_X11)
Region rgn;
void *xrectangles;
TQRegionPrivate *region;
#elif defined(Q_WS_MAC)
uint is_rect:1;
TQRect rect;
RgnHandle rgn;
#elif defined(Q_WS_QWS)
void * rgn;
#endif
bool is_null;
} *data;
#if defined(Q_WS_MAC)
friend struct qt_mac_rgn_data_cache;
friend TQRegionData *qt_mac_get_rgn_data();
friend void qt_mac_free_rgn_data(TQRegionData *);
void rectifyRegion();
#elif defined(Q_WS_WIN)
friend class TQETWidget;
#endif
};
#define TQRGN_SETRECT 1 // region stream commands
#define TQRGN_SETELLIPSE 2 // (these are internal)
#define TQRGN_SETPTARRAY_ALT 3
#define TQRGN_SETPTARRAY_WIND 4
#define TQRGN_TRANSLATE 5
#define TQRGN_OR 6
#define TQRGN_AND 7
#define TQRGN_SUB 8
#define TQRGN_XOR 9
#define TQRGN_RECTS 10
/*****************************************************************************
TQRegion stream functions
*****************************************************************************/
#ifndef QT_NO_DATASTREAM
Q_EXPORT TQDataStream &amp;operator&lt;&lt;( TQDataStream &amp;, const TQRegion &amp; );
Q_EXPORT TQDataStream &amp;operator&gt;&gt;( TQDataStream &amp;, TQRegion &amp; );
#endif
#endif // TQREGION_H
</pre>
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