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Diffstat (limited to 'tdeprint/cups/imagepreview.cpp')
-rw-r--r-- | tdeprint/cups/imagepreview.cpp | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/tdeprint/cups/imagepreview.cpp b/tdeprint/cups/imagepreview.cpp new file mode 100644 index 000000000..2290f6a96 --- /dev/null +++ b/tdeprint/cups/imagepreview.cpp @@ -0,0 +1,78 @@ +/* + * This file is part of the KDE libraries + * Copyright (c) 2001 Michael Goffioul <tdeprint@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 <tqpainter.h> +#include <tqpixmap.h> +#include <tqpaintdevice.h> + +// forward definition +TQImage convertImage(const TQImage& image, int hue, int saturation, int brightness, int gamma); + +ImagePreview::ImagePreview(TQWidget *parent, const char *name ) : TQWidget(parent,name) { + brightness_ = 100; + hue_ = 0; + saturation_ = 100; + gamma_ = 1000; + bw_ = false; + + setBackgroundMode(NoBackground); +} + +ImagePreview::~ImagePreview(){ +} + +void ImagePreview::setImage(const TQImage& 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; + tqrepaint(); +} + +void ImagePreview::paintEvent(TQPaintEvent*){ + 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, TQPoint(0, 0), &buffer, buffer.rect(), TQt::CopyROP); +} + +void ImagePreview::setBlackAndWhite(bool on){ + bw_ = on; + update(); +} + +TQSize ImagePreview::tqminimumSizeHint() const +{ + return image_.size(); +} |