Diffstat (limited to 'qmake/include/private/qinternal_p.h') (more/less context) (ignore whitespace changes)
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diff --git a/qmake/include/private/qinternal_p.h b/qmake/include/private/qinternal_p.h new file mode 100644 index 0000000..ae38695 --- a/dev/null +++ b/qmake/include/private/qinternal_p.h @@ -0,0 +1,157 @@ +/**************************************************************************** +** $Id$ +** +** Definition of some shared interal classes +** +** Created : 010427 +** +** Copyright (C) 1992-2000 Trolltech AS. All rights reserved. +** +** This file is part of the kernel module of the Qt GUI Toolkit. +** +** This file may be distributed under the terms of the Q Public License +** as defined by Trolltech AS of Norway and appearing in the file +** LICENSE.QPL included in the packaging of this file. +** +** This file may be distributed and/or modified under the terms of the +** GNU General Public License version 2 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. +** +** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition +** licenses may use this file in accordance with the Qt Commercial License +** Agreement provided with the Software. +** +** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE +** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. +** +** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for +** information about Qt Commercial License Agreements. +** See http://www.trolltech.com/qpl/ for QPL licensing information. +** See http://www.trolltech.com/gpl/ for GPL licensing information. +** +** Contact info@trolltech.com if any conditions of this licensing are +** not clear to you. +** +**********************************************************************/ + +#ifndef QINTERNAL_P_H +#define QINTERNAL_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists for the convenience +// of a number of Qt sources files. This header file may change from +// version to version without notice, or even be removed. +// +// We mean it. +// +// +#ifndef QT_H +#include <qnamespace.h> +#include <qrect.h> +#endif // QT_H + +class QWidget; +class QPainter; +class QPixmap; + +class Q_EXPORT QSharedDoubleBuffer +{ +public: + enum DoubleBufferFlags { + NoFlags = 0x00, + InitBG = 0x01, + Force = 0x02, + Default = InitBG | Force + }; + typedef uint DBFlags; + + QSharedDoubleBuffer( DBFlags f = Default ); + QSharedDoubleBuffer( QWidget* widget, + int x = 0, int y = 0, int w = -1, int h = -1, + DBFlags f = Default ); + QSharedDoubleBuffer( QPainter* painter, + int x = 0, int y = 0, int w = -1, int h = -1, + DBFlags f = Default ); + QSharedDoubleBuffer( QWidget *widget, const QRect &r, DBFlags f = Default ); + QSharedDoubleBuffer( QPainter *painter, const QRect &r, DBFlags f = Default ); + ~QSharedDoubleBuffer(); + + bool begin( QWidget* widget, int x = 0, int y = 0, int w = -1, int h = -1 ); + bool begin( QPainter* painter, int x = 0, int y = 0, int w = -1, int h = -1); + bool begin( QWidget* widget, const QRect &r ); + bool begin( QPainter* painter, const QRect &r ); + bool end(); + + QPainter* painter() const; + + bool isActive() const; + bool isBuffered() const; + void flush(); + + static bool isDisabled() { return !dblbufr; } + static void setDisabled( bool off ) { dblbufr = !off; } + + static void cleanup(); + +private: + enum DoubleBufferState { + Active = 0x0100, + BufferActive = 0x0200, + ExternalPainter = 0x0400 + }; + typedef uint DBState; + + QPixmap *getPixmap(); + void releasePixmap(); + + QWidget *wid; + int rx, ry, rw, rh; + DBFlags flags; + DBState state; + + QPainter *p, *external_p; + QPixmap *pix; + + static bool dblbufr; +}; + +inline bool QSharedDoubleBuffer::begin( QWidget* widget, const QRect &r ) +{ return begin( widget, r.x(), r.y(), r.width(), r.height() ); } + +inline bool QSharedDoubleBuffer::begin( QPainter *painter, const QRect &r ) +{ return begin( painter, r.x(), r.y(), r.width(), r.height() ); } + +inline QPainter* QSharedDoubleBuffer::painter() const +{ return p; } + +inline bool QSharedDoubleBuffer::isActive() const +{ return ( state & Active ); } + +inline bool QSharedDoubleBuffer::isBuffered() const +{ return ( state & BufferActive ); } + + +class QVirtualDestructor { +public: + virtual ~QVirtualDestructor() {} +}; + +template <class T> +class QAutoDeleter : public QVirtualDestructor { +public: + QAutoDeleter( T* p ) : ptr( p ) {} + ~QAutoDeleter() { delete ptr; } +private: + T* ptr; +}; + +template <class T> +QAutoDeleter<T>* qAutoDeleter( T* p ) +{ + return new QAutoDeleter<T>( p ); +} +#endif // QINTERNAL_P_H |