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/*
* This file was copied from ksnapshot
*
* Copyright (C) 2003 Nadeem Hasan <nhasan@kde.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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 program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "regiongrabber.h"
#include <qpainter.h>
#include <qpalette.h>
#include <qstyle.h>
#include <qtimer.h>
#include <qtooltip.h>
#include <kglobalsettings.h>
SizeTip::SizeTip( QWidget *parent, const char *name )
: QLabel( parent, name, WStyle_Customize | WX11BypassWM |
WStyle_StaysOnTop | WStyle_NoBorder | WStyle_Tool )
{
setMargin( 2 );
setIndent( 0 );
setFrameStyle( QFrame::Plain | QFrame::Box );
setPalette( QToolTip::palette() );
}
void SizeTip::setTip( const QRect &rect )
{
QString tip = QString( "%1x%2" ).arg( rect.width() )
.arg( rect.height() );
setText( tip );
adjustSize();
positionTip( rect );
}
void SizeTip::positionTip( const QRect &rect )
{
QRect tipRect = geometry();
tipRect.moveTopLeft( QPoint( 0, 0 ) );
if ( rect.intersects( tipRect ) )
{
QRect deskR = KGlobalSettings::desktopGeometry( QPoint( 0, 0 ) );
tipRect.moveCenter( QPoint( deskR.width()/2, deskR.height()/2 ) );
if ( !rect.contains( tipRect, true ) && rect.intersects( tipRect ) )
tipRect.moveBottomRight( geometry().bottomRight() );
}
move( tipRect.topLeft() );
}
RegionGrabber::RegionGrabber()
: QWidget( 0, 0 ),
mouseDown( false ), sizeTip( 0L )
{
sizeTip = new SizeTip( ( QWidget * )0L );
tipTimer = new QTimer( this );
Q_CHECK_PTR(tipTimer);
connect( tipTimer, SIGNAL( timeout() ), SLOT( updateSizeTip() ) );
QTimer::singleShot( 200, this, SLOT( initGrabber() ) );
}
RegionGrabber::~RegionGrabber()
{
delete sizeTip;
}
void RegionGrabber::initGrabber()
{
pixmap = QPixmap::grabWindow( qt_xrootwin() );
setPaletteBackgroundPixmap( pixmap );
showFullScreen();
grabMouse( crossCursor );
}
void RegionGrabber::mousePressEvent( QMouseEvent *e )
{
if ( e->button() == LeftButton )
{
mouseDown = true;
grabRect = QRect( e->pos(), e->pos() );
}
}
void RegionGrabber::mouseMoveEvent( QMouseEvent *e )
{
if ( mouseDown )
{
sizeTip->hide();
tipTimer->start( 250, true );
drawRubber();
grabRect.setBottomRight( e->pos() );
drawRubber();
}
}
void RegionGrabber::mouseReleaseEvent( QMouseEvent *e )
{
mouseDown = false;
drawRubber();
sizeTip->hide();
grabRect.setBottomRight( e->pos() );
grabRect = grabRect.normalize();
QPixmap region = QPixmap::grabWindow( winId(), grabRect.x(), grabRect.y(),
grabRect.width(), grabRect.height() );
releaseMouse();
emit regionGrabbed( region );
}
void RegionGrabber::keyPressEvent( QKeyEvent *e )
{
if ( e->key() == Qt::Key_Escape )
{
releaseMouse();
emit regionGrabbed( QPixmap() );
}
else
e->ignore();
}
void RegionGrabber::updateSizeTip()
{
QRect rect = grabRect.normalize();
sizeTip->setTip( rect );
sizeTip->show();
}
void RegionGrabber::drawRubber()
{
QPainter p;
p.begin( this );
p.setRasterOp( NotROP );
p.setPen( QPen( color0, 1 ) );
p.setBrush( NoBrush );
style().drawPrimitive( QStyle::PE_FocusRect, &p, grabRect, colorGroup(),
QStyle::Style_Default, QStyleOption( colorGroup().base() ) );
p.end();
}
#include "regiongrabber.moc"
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