/*
* Copyright ( C ) 2015 - 2016 Département de l ' Instruction Publique ( DIP - SEM )
*
* Copyright ( C ) 2013 Open Education Foundation
*
* Copyright ( C ) 2010 - 2013 Groupement d ' Intérêt Public pour
* l ' Education Numérique en Afrique ( GIP ENA )
*
* This file is part of OpenBoard .
*
* OpenBoard 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 , version 3 of the License ,
* with a specific linking exception for the OpenSSL project ' s
* " OpenSSL " library ( or with modified versions of it that use the
* same license as the " OpenSSL " library ) .
*
* OpenBoard 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 OpenBoard . If not , see < http : //www.gnu.org/licenses/>.
*/
# include <QApplication>
# include <QDesktopWidget>
# include <QStyle>
# include "UBCustomCaptureWindow.h"
# include "frameworks/UBPlatformUtils.h"
# include "gui/UBRubberBand.h"
# include "core/memcheck.h"
UBCustomCaptureWindow : : UBCustomCaptureWindow ( QWidget * parent )
: QDialog ( parent , Qt : : FramelessWindowHint | Qt : : Window )
, mSelectionBand ( 0 )
, mRubberBandStyle ( 0 )
, mOrigin ( 0 , 0 )
, mIsSelecting ( false )
{
setCursor ( Qt : : CrossCursor ) ;
setWindowOpacity ( 0.0 ) ;
}
UBCustomCaptureWindow : : ~ UBCustomCaptureWindow ( )
{
delete mSelectionBand ;
delete mRubberBandStyle ;
}
QPixmap UBCustomCaptureWindow : : getSelectedPixmap ( )
{
if ( mSelectionBand )
{
return mWholeScreenPixmap . copy ( mSelectionBand - > geometry ( ) ) ;
}
else
{
return QPixmap ( ) ;
}
}
int UBCustomCaptureWindow : : execute ( const QPixmap & pScreenPixmap )
{
mWholeScreenPixmap = pScreenPixmap ;
QDesktopWidget * desktop = QApplication : : desktop ( ) ;
int currentScreen = desktop - > screenNumber ( QCursor : : pos ( ) ) ;
setGeometry ( desktop - > screenGeometry ( currentScreen ) ) ;
this - > show ( ) ;
setWindowOpacity ( 1.0 ) ;
return exec ( ) ;
}
void UBCustomCaptureWindow : : mouseMoveEvent ( QMouseEvent * event )
{
if ( mIsSelecting )
{
mSelectionBand - > setGeometry ( QRect ( mOrigin , event - > pos ( ) ) . normalized ( ) ) ;
}
event - > accept ( ) ;
}
void UBCustomCaptureWindow : : mousePressEvent ( QMouseEvent * event )
{
if ( ! mIsSelecting )
{
mIsSelecting = true ;
mOrigin = event - > pos ( ) ;
if ( ! mSelectionBand )
{
mSelectionBand = new UBRubberBand ( QRubberBand : : Rectangle , this ) ;
}
mSelectionBand - > setGeometry ( QRect ( mOrigin , QSize ( ) ) ) ;
mSelectionBand - > show ( ) ;
event - > accept ( ) ;
}
}
void UBCustomCaptureWindow : : mouseReleaseEvent ( QMouseEvent * event )
{
mIsSelecting = false ;
if ( mSelectionBand )
{
mSelectionBand - > hide ( ) ;
}
event - > accept ( ) ;
// do not accept very small selection
if ( ! ( mSelectionBand - > geometry ( ) . width ( ) < 6 & & mSelectionBand - > geometry ( ) . height ( ) < 6 ) )
{
accept ( ) ;
}
}
void UBCustomCaptureWindow : : keyPressEvent ( QKeyEvent * event )
{
if ( event - > key ( ) = = Qt : : Key_Escape )
{
mIsSelecting = false ;
if ( mSelectionBand )
{
mSelectionBand - > hide ( ) ;
}
event - > accept ( ) ;
reject ( ) ;
}
}
void UBCustomCaptureWindow : : showEvent ( QShowEvent * event )
{
Q_UNUSED ( event ) ;
}
void UBCustomCaptureWindow : : paintEvent ( QPaintEvent * event )
{
Q_UNUSED ( event ) ;
QPainter painter ( this ) ;
painter . drawPixmap ( 0 , 0 , mWholeScreenPixmap ) ;
}