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, 85 insertions, 0 deletions

diff --git a/libkscan/dispgamma.cpp b/libkscan/dispgamma.cpp
new file mode 100644
index 00000000..2892d563
--- /dev/null
+++ b/libkscan/dispgamma.cpp
@@ -0,0 +1,85 @@
+/* This file is part of the KDE Project
+   Copyright (C) 2000 Klaas Freitag <freitag@suse.de>  
+
+   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 Library General Public License
+   along with this library; see the file COPYING.LIB.  If not, write to
+   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.
+*/
+
+#include <qpainter.h>
+#include <qpixmap.h>
+
+#include "dispgamma.h"
+
+DispGamma::DispGamma( QWidget *parent ) : QWidget( parent )
+{
+    vals = 0;
+    margin = 10;
+}
+
+DispGamma::~DispGamma()
+{
+
+}
+
+void DispGamma::resizeEvent (QResizeEvent* )
+{
+    repaint();
+}
+
+void DispGamma::paintEvent( QPaintEvent *ev )
+{
+    QPainter p(this);
+    int w = vals->size() +1;
+
+    // Viewport auf margin setzen.
+    p.setViewport( margin, margin, width() - margin, height() - margin );
+    p.setWindow( 0, 255, w, -256 );
+
+    p.setClipRect( ev->rect());
+
+    p.setPen( colorGroup().highlight() );
+    p.setBrush( colorGroup().base() );
+    // Backgrond
+    p.drawRect( 0,0, w, 256 );
+    p.setPen( QPen(colorGroup().midlight(), 1, DotLine));
+    // horizontal Grid
+    for( int l = 1; l < 5; l++ )
+            p.drawLine( 1, l*51, 255, l*51 );
+
+    // vertical Grid
+    for( int l = 1; l < 5; l++ )
+            p.drawLine( l*51, 2, l*51, 255 );
+
+    // draw gamma-Line
+    p.setPen( colorGroup().highlight() );
+    p.moveTo( 1, vals->at(1) );
+    for( int i = 2; i < w-1; i++ )
+    {
+        p.lineTo( i, vals->at(i) );
+    }
+    p.flush();
+}
+
+
+QSize DispGamma::sizeHint( void )
+{
+    return QSize( 256 + 2*margin,256 + 2 * margin );
+}
+
+QSizePolicy DispGamma::sizePolicy( void )
+{
+    return QSizePolicy( QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding );
+}
+#include "dispgamma.moc"