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