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144 lines
4.7 KiB
144 lines
4.7 KiB
/*
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* This file is part of Chalk
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*
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* Copyright (c) 2006 Cyrille Berger <cberger@cberger.net>
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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 "kis_blur_filter.h"
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#include <kcombobox.h>
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#include <knuminput.h>
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#include <kis_autobrush_resource.h>
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#include <kis_convolution_painter.h>
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#include <kis_iterators_pixel.h>
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#include <kis_progress_display_interface.h>
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#include <kis_progress_subject.h>
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#include "kis_wdg_blur.h"
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#include "wdgblur.h"
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KisKernelSP kernelFromTQImage(const TQImage& img)
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{
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KisKernelSP k = new KisKernel;
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k->width = img.width();
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k->height = img.height();
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k->offset = 0;
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uint count = k->width * k->height;
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k->data = new TQ_INT32[count];
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TQ_INT32* itData = k->data;
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TQ_UINT8* itImg = (TQ_UINT8*)img.bits();
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k->factor = 0;
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for(uint i = 0; i < count; ++i , ++itData, itImg+=4)
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{
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*itData = 255 - ( *itImg + *(itImg+1) + *(itImg+2) ) / 3;
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k->factor += *itData;
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}
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return k;
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}
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KisBlurFilter::KisBlurFilter() : KisFilter(id(), "blur", i18n("&Blur..."))
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{
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}
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KisFilterConfigWidget * KisBlurFilter::createConfigurationWidget(TQWidget* parent, KisPaintDeviceSP )
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{
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return new KisWdgBlur(this, parent, "configuration of color to alpha");
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}
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KisFilterConfiguration* KisBlurFilter::configuration(TQWidget* w)
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{
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KisWdgBlur * wCTA = dynamic_cast<KisWdgBlur*>(w);
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if(!wCTA) return 0;
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KisFilterConfiguration* config = new KisFilterConfiguration(id().id(), 1);
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if(wCTA)
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{
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config->setProperty("halfWidth", wCTA->widget()->intHalfWidth->value() );
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config->setProperty("halfHeight", wCTA->widget()->intHalfWidth->value() );
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config->setProperty("rotate", wCTA->widget()->intAngle->value() );
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config->setProperty("strength", wCTA->widget()->intStrength->value() );
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config->setProperty("shape", wCTA->widget()->cbShape->currentItem());
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}
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return config;
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}
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void KisBlurFilter::process(KisPaintDeviceSP src, KisPaintDeviceSP dst, KisFilterConfiguration* config, const TQRect& rect)
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{
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Q_ASSERT(src != 0);
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Q_ASSERT(dst != 0);
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setProgressTotalSteps(rect.width() * rect.height());
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if(!config) config = new KisFilterConfiguration(id().id(), 1);
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TQVariant value;
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int shape = (config->getProperty("shape", value)) ? value.toInt() : 0;
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uint halfWidth = (config->getProperty("halfWidth", value)) ? value.toUInt() : 5;
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uint width = 2 * halfWidth + 1;
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uint halfHeight = (config->getProperty("halfHeight", value)) ? value.toUInt() : 5;
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uint height = 2 * halfHeight + 1;
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int rotate = (config->getProperty("rotate", value)) ? value.toInt() : 0;
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int strength = 100 - (config->getProperty("strength", value)) ? value.toUInt() : 0;
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int hFade = (halfWidth * strength) / 100;
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int vFade = (halfHeight * strength) / 100;
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KisAutobrushShape* kas;
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kdDebug() << width << " " << height << " " << hFade << " " << vFade << endl;
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switch(shape)
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{
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case 1:
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kas = new KisAutobrushRectShape(width, height , hFade, vFade);
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break;
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case 0:
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default:
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kas = new KisAutobrushCircleShape(width, height, hFade, vFade);
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break;
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}
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TQImage mask;
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kas->createBrush(&mask);
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mask.convertDepth(1);
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if( rotate != 0)
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{
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TQWMatrix m;
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m.rotate( rotate );
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mask = mask.xForm( m );
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if( (mask.height() & 1) || mask.width() & 1)
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{
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mask.smoothScale( mask.width() + !(mask.width() & 1), mask.height() + !(mask.height() & 1) );
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}
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}
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KisConvolutionPainter painter( dst );
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if (m_progressDisplay)
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m_progressDisplay->setSubject( &painter, true, true );
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KisKernelSP kernel = kernelFromTQImage(mask); // TODO: for 1.6 reuse the chalk's core function for creating kernel : KisKernel::fromTQImage
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painter.applyMatrix(kernel, rect.x(), rect.y(), rect.width(), rect.height(), BORDER_REPEAT, KisChannelInfo::FLAG_COLOR_AND_ALPHA);
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if (painter.cancelRequested()) {
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cancel();
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}
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setProgressDone(); // Must be called even if you don't really support progression
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}
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