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/* ============================================================
*
* This file is a part of digiKam project
* http://www.digikam.org
*
* Date : 2005-07-05
* Description : a ListView to display black frames
*
* Copyright (C) 2005-2008 by Gilles Caulier <caulier dot gilles at gmail dot com>
* Copyright (C) 2005-2006 by Unai Garro <ugarro at users dot sourceforge dot net>
*
* This program 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, 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 General Public License for more details.
*
* ============================================================ */
#define THUMB_WIDTH 150
// Qt includes.
#include <qpainter.h>
#include <qtooltip.h>
// Local includes.
#include "blackframelistview.h"
#include "blackframelistview.moc"
namespace DigikamHotPixelsImagesPlugin
{
BlackFrameListView::BlackFrameListView(QWidget* parent)
: QListView(parent)
{
addColumn(i18n("Preview"));
addColumn(i18n("Size"));
addColumn(i18n("This is a column which will contain the amount of HotPixels "
"found in the black frame file", "HP"));
setAllColumnsShowFocus(true);
setResizeMode(QListView::LastColumn);
setSelectionMode(QListView::Single);
}
// --------------------------------------------------------------------------
BlackFrameListViewItem::BlackFrameListViewItem(BlackFrameListView* parent, const KURL &url)
: QObject(parent), QListViewItem(parent)
{
m_parent = parent;
m_blackFrameURL = url;
m_parser = new BlackFrameParser(parent);
m_parser->parseBlackFrame(url);
connect(m_parser, SIGNAL(parsed(QValueList<HotPixel>)),
this, SLOT(slotParsed(QValueList<HotPixel>)));
connect(this, SIGNAL(parsed(QValueList<HotPixel>, const KURL&)),
parent, SLOT(slotParsed(QValueList<HotPixel>, const KURL&)));
connect(m_parser, SIGNAL(signalLoadingProgress(float)),
this, SIGNAL(signalLoadingProgress(float)));
connect(m_parser, SIGNAL(signalLoadingComplete()),
this, SIGNAL(signalLoadingComplete()));
}
void BlackFrameListViewItem::activate()
{
QToolTip::add( m_parent, m_blackFrameDesc);
emit parsed(m_hotPixels, m_blackFrameURL);
}
QString BlackFrameListViewItem::text(int column)const
{
switch (column)
{
case 0:
{
// First column includes the pixmap
break;
}
case 1:
{
// The image size.
if (!m_imageSize.isEmpty())
return (QString("%1x%2").arg(m_imageSize.width()).arg(m_imageSize.height()));
break;
}
case 2:
{
// The amount of hot pixels found in the black frame.
return (QString::number(m_hotPixels.count()));
break;
}
}
return QString();
}
void BlackFrameListViewItem::paintCell(QPainter* p, const QColorGroup& cg, int column, int width, int align)
{
//Let the normal listview item draw it all for now
QListViewItem::paintCell(p, cg, column, width, align);
}
void BlackFrameListViewItem::slotParsed(QValueList<HotPixel> hotPixels)
{
m_hotPixels = hotPixels;
m_image = m_parser->image();
m_imageSize = m_image.size();
m_thumb = thumb(QSize(THUMB_WIDTH, THUMB_WIDTH/3*2));
setPixmap(0, m_thumb);
m_blackFrameDesc = QString("<p><b>" + m_blackFrameURL.fileName() + "</b>:<p>");
QValueList <HotPixel>::Iterator end(m_hotPixels.end());
for (QValueList <HotPixel>::Iterator it = m_hotPixels.begin() ; it != end ; ++it)
m_blackFrameDesc.append( QString("[%1,%2] ").arg((*it).x()).arg((*it).y()) );
emit parsed(m_hotPixels, m_blackFrameURL);
}
QPixmap BlackFrameListViewItem::thumb(const QSize& size)
{
QPixmap thumb;
//First scale it down to the size
thumb = m_image.smoothScale(size, QImage::ScaleMin);
//And draw the hot pixel positions on the thumb
QPainter p(&thumb);
//Take scaling into account
float xRatio, yRatio;
float hpThumbX, hpThumbY;
QRect hpRect;
xRatio = (float)size.width()/(float)m_image.width();
yRatio = (float)size.height()/(float)m_image.height();
//Draw hot pixels one by one
QValueList <HotPixel>::Iterator it;
QValueList <HotPixel>::Iterator end(m_hotPixels.end());
for (it=m_hotPixels.begin() ; it!=end ; ++it)
{
hpRect = (*it).rect;
hpThumbX = (hpRect.x()+hpRect.width()/2)*xRatio;
hpThumbY = (hpRect.y()+hpRect.height()/2)*yRatio;
p.setPen(QPen(Qt::black));
p.drawLine((int)hpThumbX, (int)hpThumbY-1, (int)hpThumbX, (int)hpThumbY+1);
p.drawLine((int)hpThumbX-1, (int)hpThumbY, (int)hpThumbX+1, (int)hpThumbY);
p.setPen(QPen(Qt::white));
p.drawPoint((int)hpThumbX-1, (int)hpThumbY-1);
p.drawPoint((int)hpThumbX+1, (int)hpThumbY+1);
p.drawPoint((int)hpThumbX-1, (int)hpThumbY+1);
p.drawPoint((int)hpThumbX+1, (int)hpThumbY-1);
}
return thumb;
}
int BlackFrameListViewItem::width(const QFontMetrics& fm,const QListView* lv,int c)const
{
if (c==0) return THUMB_WIDTH;
else return QListViewItem::width(fm,lv,c);
}
} // NameSpace DigikamHotPixelsImagesPlugin
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