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/*
* This file is part of Chalk
*
* Copyright (c) 2005 Michael Thaler <michael.thaler@physik.tu-muenchen.de>
*
* ported from Gimp, Copyright (C) 1997 Eiichi Takamori <taka@ma1.seikyou.ne.jp>
* original pixelize.c for GIMP 0.54 by Tracy Scott
*
* 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 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <stdlib.h>
#include <vector>
#include <math.h>
#include <tqpoint.h>
#include <tqspinbox.h>
#include <tdelocale.h>
#include <kiconloader.h>
#include <kinstance.h>
#include <tdemessagebox.h>
#include <kstandarddirs.h>
#include <tdetempfile.h>
#include <kdebug.h>
#include <kgenericfactory.h>
#include <knuminput.h>
#include <kis_doc.h>
#include <kis_image.h>
#include <kis_iterators_pixel.h>
#include <kis_layer.h>
#include <kis_filter_registry.h>
#include <kis_global.h>
#include <kis_types.h>
#include <kis_progress_display_interface.h>
#include "kis_multi_integer_filter_widget.h"
#include "kis_round_corners_filter.h"
#define MIN(a,b) (((a)<(b))?(a):(b))
KisRoundCornersFilter::KisRoundCornersFilter() : KisFilter(id(), "map", i18n("&Round Corners..."))
{
}
void KisRoundCornersFilter::process(KisPaintDeviceSP src, KisPaintDeviceSP dst, KisFilterConfiguration* configuration, const TQRect& rect)
{
//read the filter configuration values from the KisFilterConfiguration object
TQ_INT32 radius = (TQ_INT32)((KisRoundCornersFilterConfiguration*)configuration)->radius();
TQ_UINT32 pixelSize = src->pixelSize();
setProgressTotalSteps( rect.height() );
setProgressStage(i18n("Applying pixelize filter..."),0);
for (TQ_INT32 y = rect.y(); y < rect.height(); y++)
{
TQ_INT32 x = rect.x();
TQ_INT32 x0 = rect.x();
TQ_INT32 y0 = rect.x();
TQ_INT32 width = rect.width();
TQ_INT32 height = rect.height();
KisHLineIteratorPixel dstIt = dst->createHLineIterator(x, y, width, true );
KisHLineIteratorPixel srcIt = src->createHLineIterator(x, y, width, false);
while( ! srcIt.isDone() )
{
if(srcIt.isSelected())
{
for( unsigned int i = 0; i < pixelSize; i++)
{
if ( i < pixelSize - 1 )
{
dstIt.rawData()[i] = srcIt.oldRawData()[i];
}
else
{
if( x <= radius && y <= radius)
{
double dx = radius - x;
double dy = radius - y;
double dradius = static_cast<double>(radius);
if ( dx >= sqrt( dradius*dradius - dy*dy ) )
{
dstIt.rawData()[i] = 0;
}
}
else if( x >= x0 + width - radius && y <= radius)
{
double dx = x + radius - x0 - width;
double dy = radius - y;
double dradius = static_cast<double>(radius);
if ( dx >= sqrt( dradius*dradius - dy*dy ) )
{
dstIt.rawData()[i] = 0;
}
}
else if( x <= radius && y >= y0 + height - radius)
{
double dx = radius - x;
double dy = y + radius - y0 - height;
double dradius = static_cast<double>(radius);
if ( dx >= sqrt( dradius*dradius - dy*dy ) )
{
dstIt.rawData()[i] = 0;
}
}
else if( x >= x0 + width - radius && y >= y0 + height - radius)
{
double dx = x + radius - x0 - width;
double dy = y + radius - y0 - height;
double dradius = static_cast<double>(radius);
if ( dx >= sqrt( dradius*dradius - dy*dy ) )
{
dstIt.rawData()[i] = 0;
}
}
}
}
}
++srcIt;
++dstIt;
++x;
}
setProgress(y);
}
setProgressDone();
}
KisFilterConfigWidget * KisRoundCornersFilter::createConfigurationWidget(TQWidget* parent, KisPaintDeviceSP /*dev*/)
{
vKisIntegerWidgetParam param;
param.push_back( KisIntegerWidgetParam( 2, 100, 30, i18n("Radius"), "radius" ) );
return new KisMultiIntegerFilterWidget(parent, id().id().ascii(), id().id().ascii(), param );
}
KisFilterConfiguration* KisRoundCornersFilter::configuration(TQWidget* nwidget)
{
KisMultiIntegerFilterWidget* widget = (KisMultiIntegerFilterWidget*) nwidget;
if( widget == 0 )
{
return new KisRoundCornersFilterConfiguration( 30 );
} else {
return new KisRoundCornersFilterConfiguration( widget->valueAt( 0 ) );
}
}
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