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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:24:48 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:24:48 +0000
commitcca66b9ec4e494c1d919bff0f71a820d8afab1fa (patch)
tree146f39ded1c938019e1ed42d30923c2ac9e86789 /src/extension/internal/pov-out.h
parentInitial commit. (diff)
downloadinkscape-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>
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+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * A simple utility for exporting Inkscape svg Shapes as PovRay bezier
+ * prisms. Note that this is output-only, and would thus seem to be
+ * better placed as an 'export' rather than 'output'. However, Export
+ * handles all or partial documents, while this outputs ALL shapes in
+ * the current SVG document.
+ *
+ * Authors:
+ * Bob Jamison <ishmal@inkscape.org>
+ *
+ * Copyright (C) 2004-2008 Authors
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#ifndef EXTENSION_INTERNAL_POV_OUT_H
+#define EXTENSION_INTERNAL_POV_OUT_H
+
+#include <glib.h>
+#include "extension/implementation/implementation.h"
+
+class SPObject;
+class SPItem;
+
+namespace Inkscape
+{
+namespace Extension
+{
+namespace Internal
+{
+
+
+
+/**
+ * Output bezier splines in POVRay format.
+ *
+ * For information, @see:
+ * http://www.povray.org
+ */
+class PovOutput : public Inkscape::Extension::Implementation::Implementation
+{
+
+
+public:
+
+ PovOutput();
+
+ /**
+ * Our internal String definition
+ */
+ typedef Glib::ustring String;
+
+
+ /**
+ * Check whether we can actually output using this module
+ */
+ bool check (Inkscape::Extension::Extension * module) override;
+
+ /**
+ * API call to perform the output to a file
+ */
+ void save(Inkscape::Extension::Output *mod,
+ SPDocument *doc, gchar const *filename) override;
+
+ /**
+ * Inkscape runtime startup call.
+ */
+ static void init();
+
+ /**
+ * Reset variables to initial state
+ */
+ void reset();
+
+private:
+
+ /**
+ * Format text to our output buffer
+ */
+ void out(const char *fmt, ...) G_GNUC_PRINTF(2,3);
+
+ /**
+ * Output a 2d vector
+ */
+ void vec2(double a, double b);
+
+ /**
+ * Output a 3d vector
+ */
+ void vec3(double a, double b, double c);
+
+ /**
+ * Output a 4d vector
+ */
+ void vec4(double a, double b, double c, double d);
+
+ /**
+ * Output an rgbf color vector
+ */
+ void rgbf(double r, double g, double b, double f);
+
+ /**
+ * Output one bezier's start, start-control,
+ * end-control, and end nodes
+ */
+ void segment(int segNr, double a0, double a1,
+ double b0, double b1,
+ double c0, double c1,
+ double d0, double d1);
+
+
+ /**
+ * Output the file header
+ */
+ bool doHeader();
+
+ /**
+ * Output the file footer
+ */
+ bool doTail();
+
+ /**
+ * Output the SVG document's curve data as POV curves
+ */
+ bool doCurve(SPItem *item, const String &id);
+ bool doTreeRecursive(SPDocument *doc, SPObject *obj);
+ bool doTree(SPDocument *doc);
+
+ /**
+ * Actual method to save document
+ */
+ void saveDocument(SPDocument *doc, gchar const *filename);
+
+
+ /**
+ * used for saving information about shapes
+ */
+ class PovShapeInfo
+ {
+ public:
+ PovShapeInfo()
+ = default;
+ PovShapeInfo(const PovShapeInfo &other)
+ { assign(other); }
+ PovShapeInfo& operator=(const PovShapeInfo &other)
+ { assign(other); return *this; }
+ virtual ~PovShapeInfo()
+ = default;
+ String id;
+ String color;
+
+ private:
+ void assign(const PovShapeInfo &other)
+ {
+ id = other.id;
+ color = other.color;
+ }
+ };
+
+ //A list for saving information about the shapes
+ std::vector<PovShapeInfo> povShapes;
+
+ //For formatted output
+ String outbuf;
+
+ //For statistics
+ int nrNodes;
+ int nrSegments;
+ int nrShapes;
+ int idIndex;
+
+ double minx;
+ double miny;
+ double maxx;
+ double maxy;
+
+};
+
+
+
+
+} // namespace Internal
+} // namespace Extension
+} // namespace Inkscape
+
+
+
+#endif /* EXTENSION_INTERNAL_POV_OUT_H */
+