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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
commit | cca66b9ec4e494c1d919bff0f71a820d8afab1fa (patch) | |
tree | 146f39ded1c938019e1ed42d30923c2ac9e86789 /src/trace/potrace/inkscape-potrace.h | |
parent | Initial commit. (diff) | |
download | inkscape-upstream.tar.xz inkscape-upstream.zip |
Adding upstream version 1.2.2.upstream/1.2.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/trace/potrace/inkscape-potrace.h | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/src/trace/potrace/inkscape-potrace.h b/src/trace/potrace/inkscape-potrace.h new file mode 100644 index 0000000..c4c7bf4 --- /dev/null +++ b/src/trace/potrace/inkscape-potrace.h @@ -0,0 +1,145 @@ +// 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. + * + */ + +#ifndef __INKSCAPE_POTRACE_H__ +#define __INKSCAPE_POTRACE_H__ + +#include <trace/trace.h> +#include <potracelib.h> + +struct GrayMap_def; +typedef GrayMap_def GrayMap; + +namespace Inkscape { + +namespace Trace { + +namespace Potrace { + +enum TraceType + { + TRACE_BRIGHTNESS, + TRACE_BRIGHTNESS_MULTI, + TRACE_CANNY, + TRACE_QUANT, + TRACE_QUANT_COLOR, + TRACE_QUANT_MONO, + // Used in tradedialog.cpp + AUTOTRACE_SINGLE, + AUTOTRACE_MULTI, + AUTOTRACE_CENTERLINE + }; + + +class PotraceTracingEngine : public TracingEngine +{ + + public: + + /** + * + */ + PotraceTracingEngine(); + PotraceTracingEngine(TraceType traceType, bool invert, int quantizationNrColors, double brightnessThreshold, double brightnessFloor, double cannyHighThreshold, int multiScanNrColors, bool multiScanStack, bool multiScanSmooth, bool multiScanRemoveBackground); + + /** + * + */ + ~PotraceTracingEngine() override; + + /** + * This is the working method of this implementing class, and all + * implementing classes. Take a GdkPixbuf, trace it, and + * return the path data that is compatible with the d="" attribute + * of an SVG <path> element. + */ + std::vector<TracingEngineResult> trace( + Glib::RefPtr<Gdk::Pixbuf> pixbuf) override; + + /** + * Abort the thread that is executing getPathDataFromPixbuf() + */ + void abort() override; + + /** + * + */ + Glib::RefPtr<Gdk::Pixbuf> preview(Glib::RefPtr<Gdk::Pixbuf> pixbuf); + + /** + * + */ + int keepGoing; + + std::vector<TracingEngineResult>traceGrayMap(GrayMap *grayMap); + + potrace_param_t *potraceParams; + TraceType traceType; + + //## do I invert at the end? + bool invert; + + //## Color-->b&w quantization + int quantizationNrColors; + + //## brightness items + double brightnessThreshold; + double brightnessFloor; //usually 0.0 + + //## canny items + double cannyHighThreshold; + + //## Color-->multiscan quantization + int multiScanNrColors; + bool multiScanStack; //do we tile or stack? + bool multiScanSmooth;//do we use gaussian filter? + bool multiScanRemoveBackground; //do we remove the bottom trace? + + private: + /** + * This is the actual wrapper of the call to Potrace. nodeCount + * returns the count of nodes created. May be NULL if ignored. + */ + std::string grayMapToPath(GrayMap *gm, long *nodeCount); + + std::vector<TracingEngineResult>traceBrightnessMulti(GdkPixbuf *pixbuf); + std::vector<TracingEngineResult>traceQuant(GdkPixbuf *pixbuf); + std::vector<TracingEngineResult>traceSingle(GdkPixbuf *pixbuf); + + +};//class PotraceTracingEngine + + + +} // namespace Potrace +} // namespace Trace +} // namespace Inkscape + + +#endif //__INKSCAPE_POTRACE_H__ + + +/* + 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 : |