filters

kis_png_export.cc

00001 /*
00002  *  Copyright (c) 2005-2006 Cyrille Berger <cberger@cberger.net>
00003  *
00004  *  This program is free software; you can redistribute it and/or modify
00005  *  it under the terms of the GNU General Public License as published by
00006  *  the Free Software Foundation; either version 2 of the License, or
00007  *  (at your option) any later version.
00008  *
00009  *  This program is distributed in the hope that it will be useful,
00010  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  *  GNU General Public License for more details.
00013  *
00014  *  You should have received a copy of the GNU General Public License
00015  *  along with this program; if not, write to the Free Software
00016  *  Foundation, Inc., 51 Franklin Street, Fifth Floor,
00017  * Boston, MA 02110-1301, USA.
00018  */
00019 
00020 #include "kis_png_export.h"
00021 
00022 #include <qcheckbox.h>
00023 #include <qslider.h>
00024 
00025 #include <kapplication.h>
00026 #include <kdialogbase.h>
00027 #include <kgenericfactory.h>
00028 
00029 #include <KoFilterChain.h>
00030 
00031 #include <kis_colorspace.h>
00032 #include <kis_doc.h>
00033 #include <kis_image.h>
00034 #include <kis_iterators_pixel.h>
00035 #include <kis_paint_layer.h>
00036 #include <kis_progress_display_interface.h>
00037 
00038 #include "kis_png_converter.h"
00039 #include "kis_wdg_options_png.h"
00040 
00041 typedef KGenericFactory<KisPNGExport, KoFilter> KisPNGExportFactory;
00042 K_EXPORT_COMPONENT_FACTORY(libkritapngexport, KisPNGExportFactory("kofficefilters"))
00043 
00044 KisPNGExport::KisPNGExport(KoFilter *, const char *, const QStringList&) : KoFilter()
00045 {
00046 }
00047 
00048 KisPNGExport::~KisPNGExport()
00049 {
00050 }
00051 
00052 KoFilter::ConversionStatus KisPNGExport::convert(const QCString& from, const QCString& to)
00053 {
00054     kdDebug(41008) << "Png export! From: " << from << ", To: " << to << "\n";
00055     
00056     KisDoc *output = dynamic_cast<KisDoc*>(m_chain->inputDocument());
00057     QString filename = m_chain->outputFile();
00058     
00059     if (!output)
00060         return KoFilter::CreationError;
00061     
00062     
00063     if (filename.isEmpty()) return KoFilter::FileNotFound;
00064 
00065     if (from != "application/x-krita")
00066         return KoFilter::NotImplemented;
00067 
00068     
00069     KDialogBase* kdb = new KDialogBase(0, "", false, i18n("PNG Export Options"), KDialogBase::Ok | KDialogBase::Cancel);
00070     
00071     KisImageSP img = output->currentImage();
00072     KisPaintDeviceSP pd = new KisPaintDevice(*img->projection());
00073     KisPaintLayerSP l = new KisPaintLayer(img, "projection", OPACITY_OPAQUE, pd);
00074  
00075     KisRectIteratorPixel it = l->paintDevice()->createRectIterator(0,0, img->width(), img->height(), false);
00076     KisColorSpace* cs = l->paintDevice()->colorSpace();
00077     bool isThereAlpha = false;
00078     while( !it.isDone() )
00079     {
00080         if(cs->getAlpha( it.rawData() ) != 255)
00081         {
00082             isThereAlpha = true;
00083             break;
00084         }
00085         ++it;
00086     }
00087     
00088     KisWdgOptionsPNG* wdg = new KisWdgOptionsPNG(kdb);
00089     wdg->alpha->setChecked(isThereAlpha);
00090     wdg->alpha->setEnabled(isThereAlpha);
00091     kdb->setMainWidget(wdg);
00092     kapp->restoreOverrideCursor();
00093     if(kdb->exec() == QDialog::Rejected)
00094     {
00095         return KoFilter::OK; // FIXME Cancel doesn't exist :(
00096     }
00097 
00098     bool alpha = wdg->alpha->isChecked();
00099     bool interlace = wdg->interlacing->isChecked();
00100     int compression = wdg->compressionLevel->value();
00101     
00102     delete kdb;
00103 
00104 
00105     KURL url;
00106     url.setPath(filename);
00107 
00108     KisPNGConverter kpc(output, output->undoAdapter());
00109 
00110     vKisAnnotationSP_it beginIt = img->beginAnnotations();
00111     vKisAnnotationSP_it endIt = img->endAnnotations();
00112     KisImageBuilder_Result res;
00113 
00114     
00115     if ( (res = kpc.buildFile(url, l, beginIt, endIt, compression, interlace, alpha)) == KisImageBuilder_RESULT_OK) {
00116         kdDebug(41008) << "success !" << endl;
00117         return KoFilter::OK;
00118     }
00119     kdDebug(41008) << " Result = " << res << endl;
00120     return KoFilter::InternalError;
00121 }
00122 
00123 #include <kis_png_export.moc>
00124 
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