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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* This is the C++ glue between Inkscape and Potrace
*
* Authors:
* Bob Jamison <rjamison@titan.com>
* Stéphane Gimenez <dev@gim.name>
*
* Copyright (C) 2004-2006 Authors
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*
* Potrace, the wonderful tracer located at http://potrace.sourceforge.net,
* is provided by the generosity of Peter Selinger, to whom we are grateful.
*
*/
#include "inkscape-depixelize.h"
#include <glibmm/i18n.h>
#include <gtkmm/main.h>
#include <gtkmm.h>
#include <iomanip>
#include "desktop.h"
#include "message-stack.h"
#include "helper/geom.h"
#include "object/sp-path.h"
#include "display/cairo-templates.h"
#include <svg/path-string.h>
#include <svg/svg.h>
#include <svg/svg-color.h>
#include "svg/css-ostringstream.h"
using Glib::ustring;
namespace Inkscape {
namespace Trace {
namespace Depixelize {
/**
*
*/
DepixelizeTracingEngine::DepixelizeTracingEngine()
: keepGoing(1)
, traceType(TRACE_VORONOI)
{
params = new ::Tracer::Kopf2011::Options();
}
DepixelizeTracingEngine::DepixelizeTracingEngine(TraceType traceType, double curves, int islands, int sparsePixels,
double sparseMultiplier, bool optimize)
: keepGoing(1)
, traceType(traceType)
{
params = new ::Tracer::Kopf2011::Options();
params->curvesMultiplier = curves;
params->islandsWeight = islands;
params->sparsePixelsRadius = sparsePixels;
params->sparsePixelsMultiplier = sparseMultiplier;
params->optimize = optimize;
params->nthreads = Inkscape::Preferences::get()->getIntLimited("/options/threading/numthreads",
#ifdef HAVE_OPENMP
omp_get_num_procs(),
#else
1,
#endif // HAVE_OPENMP
1, 256);
}
DepixelizeTracingEngine::~DepixelizeTracingEngine() { delete params; }
std::vector<TracingEngineResult> DepixelizeTracingEngine::trace(Glib::RefPtr<Gdk::Pixbuf> pixbuf)
{
std::vector<TracingEngineResult> res;
if (pixbuf->get_width() > 256 || pixbuf->get_height() > 256) {
char *msg = _("Image looks too big. Process may take a while and it is"
" wise to save your document before continuing."
"\n\nContinue the procedure (without saving)?");
Gtk::MessageDialog dialog(msg, false, Gtk::MESSAGE_WARNING, Gtk::BUTTONS_OK_CANCEL, true);
if (dialog.run() != Gtk::RESPONSE_OK) {
return res;
}
}
::Tracer::Splines splines;
if (traceType == TRACE_VORONOI)
splines = ::Tracer::Kopf2011::to_voronoi(pixbuf, *params);
else
splines = ::Tracer::Kopf2011::to_splines(pixbuf, *params);
for (::Tracer::Splines::const_iterator it = splines.begin(), end = splines.end(); it != end; ++it) {
gchar b[64];
sp_svg_write_color(b, sizeof(b),
SP_RGBA32_U_COMPOSE(unsigned(it->rgba[0]),
unsigned(it->rgba[1]),
unsigned(it->rgba[2]),
unsigned(it->rgba[3])));
Inkscape::CSSOStringStream osalpha;
osalpha << float(it->rgba[3]) / 255.;
gchar* style = g_strdup_printf("fill:%s;fill-opacity:%s;", b, osalpha.str().c_str());
printf("%s\n", style);
TracingEngineResult r(style, sp_svg_write_path(it->pathVector), count_pathvector_nodes(it->pathVector));
res.push_back(r);
g_free(style);
}
return res;
}
void DepixelizeTracingEngine::abort() { keepGoing = 0; }
Glib::RefPtr<Gdk::Pixbuf> DepixelizeTracingEngine::preview(Glib::RefPtr<Gdk::Pixbuf> pixbuf) { return pixbuf; }
} // namespace Depixelize
} // namespace Trace
} // namespace Inkscape
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :
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