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/****************************************************************************
**
** Definition of the QWidgetResizeHandler class
**
** Created : 001010
**
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
**
** This file is part of the workspace module of the Qt 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 files LICENSE.GPL2
** and LICENSE.GPL3 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 Qt 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.QPL
** included in the packaging of this file. Licensees holding valid Qt
** Commercial 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 WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#ifndef QWIDGETRESIZEHANDLER_P_H
#define QWIDGETRESIZEHANDLER_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. This header file may
// change from version to version without notice, or even be
// removed.
//
// We mean it.
//
//
#ifndef QT_H
#include "qobject.h"
#endif // QT_H
#ifndef QT_NO_RESIZEHANDLER
class QMouseEvent;
class QKeyEvent;
class Q_EXPORT QWidgetResizeHandler : public QObject
{
Q_OBJECT
public:
enum Action {
Move = 0x01,
Resize = 0x02,
Any = Move|Resize
};
QWidgetResizeHandler( QWidget *parent, QWidget *cw = 0, const char *name = 0 );
void setActive( bool b ) { setActive( Any, b ); }
void setActive( Action ac, bool b );
bool isActive() const { return isActive( Any ); }
bool isActive( Action ac ) const;
void setMovingEnabled( bool b ) { moving = b; }
bool isMovingEnabled() const { return moving; }
bool isButtonDown() const { return buttonDown; }
void setExtraHeight( int h ) { extrahei = h; }
void setSizeProtection( bool b ) { sizeprotect = b; }
void doResize();
void doMove();
signals:
void activate();
protected:
bool eventFilter( QObject *o, QEvent *e );
void mouseMoveEvent( QMouseEvent *e );
void keyPressEvent( QKeyEvent *e );
private:
enum MousePosition {
Nowhere,
TopLeft, BottomRight, BottomLeft, TopRight,
Top, Bottom, Left, Right,
Center
};
QWidget *widget;
QWidget *childWidget;
QPoint moveOffset;
QPoint invertedMoveOffset;
MousePosition mode;
int extrahei;
int range;
uint buttonDown :1;
uint moveResizeMode :1;
uint activeForResize :1;
uint sizeprotect :1;
uint moving :1;
uint activeForMove :1;
void setMouseCursor( MousePosition m );
bool isMove() const {
return moveResizeMode && mode == Center;
}
bool isResize() const {
return moveResizeMode && !isMove();
}
private: // Disabled copy constructor and operator=
#if defined(Q_DISABLE_COPY)
QWidgetResizeHandler( const QWidgetResizeHandler & );
QWidgetResizeHandler& operator=( const QWidgetResizeHandler & );
#endif
};
#endif //QT_NO_RESIZEHANDLER
#endif
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