Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 177 insertions, 0 deletions

diff --git a/ksnapshot/regiongrabber.cpp b/ksnapshot/regiongrabber.cpp
new file mode 100644
index 00000000..c1d8ed98
--- /dev/null
+++ b/ksnapshot/regiongrabber.cpp
@@ -0,0 +1,177 @@
+/*
+  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 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., 51 Franklin Street, Fifth Floor,
+  Boston, MA 02110-1301, USA.
+*/
+
+#include "regiongrabber.h"
+
+#include <qapplication.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, WStyle_Customize | WX11BypassWM ),
+    mouseDown( false ), sizeTip( 0L )
+{
+  sizeTip = new SizeTip( ( QWidget * )0L );
+
+  tipTimer = new QTimer( this );
+  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 );
+
+  QDesktopWidget desktopWidget;
+  QRect desktopSize;
+  if ( desktopWidget.isVirtualDesktop() )
+    desktopSize = desktopWidget.geometry();
+  else
+    desktopSize = desktopWidget.screenGeometry( qt_xrootwin() );
+
+  setGeometry( desktopSize );
+  showFullScreen();
+
+  QApplication::setOverrideCursor( 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() );
+
+  QApplication::restoreOverrideCursor();
+
+  emit regionGrabbed( region );
+}
+
+void RegionGrabber::keyPressEvent( QKeyEvent *e )
+{
+  if ( e->key() == Key_Escape )
+  {
+    QApplication::restoreOverrideCursor();
+    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"