regiongrabber.h

linux下的eva源代码

/*
  Copyright (C) 2003 Nadeem Hasan <[e-mail]>

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public
  License as published by the Free Software Foundation; either
  version 2 of the License, or ( at your option ) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Library General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this library; see the file COPYING.  If not, write to
  the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  Boston, MA 02111-1307, USA.
*/

#ifndef REGIONGRABBER_H
#define REGIONGRABBER_H

#include <qlabel.h>
#include <qpixmap.h>

//class QTimer;

class SizeTip : public QLabel
{
  public:
    SizeTip( QWidget *parent, const char *name=0 );
    ~SizeTip() {}

  void setTip( const QRect &rect );
  void positionTip( const QRect &rect );
};

class RegionGrabber : public QWidget
{
  Q_OBJECT

  public:
    RegionGrabber();
    ~RegionGrabber();

  protected slots:
    void initGrabber();
    void updateSizeTip();

  signals:
    void regionGrabbed( const QPixmap & );

  protected:
    void mousePressEvent( QMouseEvent *e );
    void mouseReleaseEvent( QMouseEvent *e );
    void mouseMoveEvent( QMouseEvent *e );
    void keyPressEvent( QKeyEvent *e );

    void drawRubber();

    bool mouseDown;
    QRect grabRect;
    QPixmap pixmap;

    SizeTip *sizeTip;
    //QTimer *tipTimer;
};

#endif // REGIONGRABBER_H