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/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 78 insertions, 0 deletions

diff --git a/kdeprint/cups/imagepreview.cpp b/kdeprint/cups/imagepreview.cpp
new file mode 100644
index 000000000..a7badd09b
--- /dev/null
+++ b/kdeprint/cups/imagepreview.cpp
@@ -0,0 +1,78 @@
+/*
+ *  This file is part of the KDE libraries
+ *  Copyright (c) 2001 Michael Goffioul <kdeprint@swing.be>
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Library General Public
+ *  License version 2 as published by the Free Software Foundation.
+ *
+ *  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 "imagepreview.h"
+
+#include <qpainter.h>
+#include <qpixmap.h>
+#include <qpaintdevice.h>
+
+// forward definition
+QImage convertImage(const QImage& image, int hue, int saturation, int brightness, int gamma);
+
+ImagePreview::ImagePreview(QWidget *parent, const char *name ) : QWidget(parent,name) {
+	brightness_ = 100;
+	hue_ = 0;
+	saturation_ = 100;
+	gamma_ = 1000;
+	bw_ = false;
+
+	setBackgroundMode(NoBackground);
+}
+
+ImagePreview::~ImagePreview(){
+}
+
+void ImagePreview::setImage(const QImage& image){
+	image_ = image.convertDepth(32);
+	image_.detach();
+	resize(image_.size());
+	update();
+}
+
+void ImagePreview::setParameters(int brightness, int hue, int saturation, int gamma){
+	brightness_ = brightness;
+	hue_ = hue;
+	saturation_ = saturation;
+	gamma_ = gamma;
+	repaint();
+}
+
+void ImagePreview::paintEvent(QPaintEvent*){
+	QImage	tmpImage = convertImage(image_,hue_,(bw_ ? 0 : saturation_),brightness_,gamma_);
+	int	x = (width()-tmpImage.width())/2, y = (height()-tmpImage.height())/2;
+
+	QPixmap	buffer(width(), height());
+	buffer.fill(parentWidget(), 0, 0);
+	QPainter	p(&buffer);
+	p.drawImage(x,y,tmpImage);
+	p.end();
+
+	bitBlt(this, QPoint(0, 0), &buffer, buffer.rect(), Qt::CopyROP);
+}
+
+void ImagePreview::setBlackAndWhite(bool on){
+	bw_ = on;
+	update();
+}
+
+QSize ImagePreview::minimumSizeHint() const
+{
+	return image_.size();
+}