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areadialog.h
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/*
* Copyright (C) 2011 Christian Kaiser
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
******
*
* Based on KDE's KSnapshot regiongrabber.cpp, revision 796531, Copyright 2007 Luca Gugelmann <lucag@student.ethz.ch>
* released under the GNU LGPL <http://www.gnu.org/licenses/old-licenses/library.txt>
*
*/
#ifndef AREADIALOG_H
#define AREADIALOG_H
#include <QDialog>
#include <QVector>
#include <QPointer>
#include <QTimer>
struct QRegion;
struct QPoint;
struct QRect;
class QPaintEvent;
class QResizeEvent;
class QMouseEvent;
class Screenshot;
class AreaDialog : public QDialog
{
Q_OBJECT
public:
AreaDialog(Screenshot* screenshot);
QRect &resultRect();
protected slots:
void displayHelp();
void grabRect();
void cancel();
void animationTick(int frame);
signals:
void regionGrabbed( const QPixmap & );
protected:
void paintEvent( QPaintEvent* e );
void resizeEvent( QResizeEvent* e );
void mousePressEvent( QMouseEvent* e );
void mouseMoveEvent( QMouseEvent* e );
void mouseReleaseEvent( QMouseEvent* e );
void mouseDoubleClickEvent( QMouseEvent* );
void keyPressEvent( QKeyEvent* e );
void showEvent( QShowEvent* e );
void updateHandles();
QRegion handleMask() const;
QPoint limitPointToRect( const QPoint &p, const QRect &r ) const;
Screenshot *mScreenshot;
QPoint mMousePos;
QRect mSelection;
bool mMouseDown;
bool mMouseMagnifier;
bool mNewSelection;
const int mHandleSize;
QRect *mMouseOverHandle;
QPoint mDragStartPoint;
QRect mSelectionBeforeDrag;
QTimer mIdleTimer;
bool mShowHelp;
bool mGrabbing;
int mOverlayAlpha;
bool mAutoclose;
// naming convention for handles
// T top, B bottom, R Right, L left
// 2 letters: a corner
// 1 letter: the handle on the middle of the corresponding side
QRect mTLHandle, mTRHandle, mBLHandle, mBRHandle;
QRect mLHandle, mTHandle, mRHandle, mBHandle;
QVector<QRect*> mHandles;
QPointer<QWidget> mAcceptWidget;
};
#endif

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