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index 29d6d48d5a02c8b91191d1e6ed1fc7b55aa029a6..a130b692354142786208ac3b1bd8fcfe97aa75bd 100644 (file)
* http://www.povray.org
*
* Authors:
- * Bob Jamison <rjamison@titan.com>
+ * Bob Jamison <ishmal@inkscape.org>
+ * Abhishek Sharma
*
- * Copyright (C) 2004 Authors
+ * Copyright (C) 2004-2008 Authors
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
# include <config.h>
#endif
#include "pov-out.h"
-#include "inkscape.h"
-#include "sp-path.h"
+#include <inkscape.h>
+#include <inkscape-version.h>
+#include <sp-path.h>
#include <style.h>
-#include "display/curve.h"
-#include "libnr/n-art-bpath.h"
-#include "extension/system.h"
+#include <display/curve.h>
+#include <extension/system.h>
+#include <2geom/pathvector.h>
+#include <2geom/rect.h>
+#include <2geom/bezier-curve.h>
+#include <2geom/hvlinesegment.h>
+#include "helper/geom.h"
+#include "helper/geom-curves.h"
+#include <io/sys.h>
+
+#include <string>
+#include <stdio.h>
+#include <stdarg.h>
+
+
+namespace Inkscape
+{
+namespace Extension
+{
+namespace Internal
+{
+//########################################################################
+//# M E S S A G E S
+//########################################################################
-#include "io/sys.h"
+static void err(const char *fmt, ...)
+{
+ va_list args;
+ g_log(NULL, G_LOG_LEVEL_WARNING, "Pov-out err: ");
+ va_start(args, fmt);
+ g_logv(NULL, G_LOG_LEVEL_WARNING, fmt, args);
+ va_end(args);
+ g_log(NULL, G_LOG_LEVEL_WARNING, "\n");
+}
-namespace Inkscape {
-namespace Extension {
-namespace Internal {
-static const char *
-dstr(gchar *sbuffer, double d)
-{
- return (const char *)g_ascii_formatd(sbuffer,
- G_ASCII_DTOSTR_BUF_SIZE, "%.8g", (gdouble)d);
+//########################################################################
+//# U T I L I T Y
+//########################################################################
+
+
+static double
+effective_opacity(SPItem const *item)
+{
+ double ret = 1.0;
+ for (SPObject const *obj = item; obj; obj = obj->parent)
+ {
+ SPStyle const *const style = SP_OBJECT_STYLE(obj);
+ g_return_val_if_fail(style, ret);
+ ret *= SP_SCALE24_TO_FLOAT(style->opacity.value);
+ }
+ return ret;
}
+
+
+
+//########################################################################
+//# OUTPUT FORMATTING
+//########################################################################
+
+
/**
- * Make sure that we are in the database
+ * We want to control floating output format
*/
-bool
-PovOutput::check (Inkscape::Extension::Extension *module)
+static PovOutput::String dstr(double d)
{
- /* We don't need a Key
- if (NULL == Inkscape::Extension::db.get(SP_MODULE_KEY_OUTPUT_POV))
- return FALSE;
- */
+ char dbuf[G_ASCII_DTOSTR_BUF_SIZE+1];
+ g_ascii_formatd(dbuf, G_ASCII_DTOSTR_BUF_SIZE,
+ "%.8f", (gdouble)d);
+ PovOutput::String s = dbuf;
+ return s;
+}
- return TRUE;
+#define DSTR(d) (dstr(d).c_str())
+
+
+/**
+ * Output data to the buffer, printf()-style
+ */
+void PovOutput::out(const char *fmt, ...)
+{
+ va_list args;
+ va_start(args, fmt);
+ gchar *output = g_strdup_vprintf(fmt, args);
+ va_end(args);
+ outbuf.append(output);
+ g_free(output);
}
+
/**
- * This function searches the Repr tree recursively from the given node,
- * and adds refs to all nodes with the given name, to the result vector
+ * Output a 2d vector
*/
-static void
-findElementsByTagName(std::vector<Inkscape::XML::Node *> &results,
- Inkscape::XML::Node *node,
- char const *name)
+void PovOutput::vec2(double a, double b)
{
- if ( !name
- || strcmp(node->name(), name) == 0 ) {
- results.push_back(node);
- }
+ out("<%s, %s>", DSTR(a), DSTR(b));
+}
+
- for (Inkscape::XML::Node *child = node->firstChild() ; child ; child = child->next())
- findElementsByTagName( results, child, name );
+/**
+ * Output a 3d vector
+ */
+void PovOutput::vec3(double a, double b, double c)
+{
+ out("<%s, %s, %s>", DSTR(a), DSTR(b), DSTR(c));
}
+
/**
- * used for saving information about shapes
+ * Output a v4d ector
*/
-class PovShapeInfo
+void PovOutput::vec4(double a, double b, double c, double d)
{
-public:
- PovShapeInfo()
- {}
- virtual ~PovShapeInfo()
- {}
- std::string id;
- std::string color;
-};
+ out("<%s, %s, %s, %s>", DSTR(a), DSTR(b), DSTR(c), DSTR(d));
+}
-static double
-effective_opacity(SPItem const *item)
+/**
+ * Output an rgbf color vector
+ */
+void PovOutput::rgbf(double r, double g, double b, double f)
{
- double ret = 1.0;
- for (SPObject const *obj = item; obj; obj = obj->parent) {
- SPStyle const *const style = SP_OBJECT_STYLE(obj);
- g_return_val_if_fail(style, ret);
- ret *= SP_SCALE24_TO_FLOAT(style->opacity.value);
- }
- return ret;
+ //"rgbf < %1.3f, %1.3f, %1.3f %1.3f>"
+ out("rgbf ");
+ vec4(r, g, b, f);
}
+
/**
- * Saves the <paths> of an Inkscape SVG file as PovRay spline definitions
-*/
-void
-PovOutput::save(Inkscape::Extension::Output *mod, SPDocument *doc, gchar const *uri)
+ * Output one bezier's start, start-control, end-control, and end nodes
+ */
+void PovOutput::segment(int segNr,
+ double startX, double startY,
+ double startCtrlX, double startCtrlY,
+ double endCtrlX, double endCtrlY,
+ double endX, double endY)
{
- std::vector<Inkscape::XML::Node *>results;
- //findElementsByTagName(results, SP_ACTIVE_DOCUMENT->rroot, "path");
- findElementsByTagName(results, SP_ACTIVE_DOCUMENT->rroot, NULL);//Check all nodes
- if (results.size() == 0)
- return;
- Inkscape::IO::dump_fopen_call(uri, "L");
- FILE *f = Inkscape::IO::fopen_utf8name(uri, "w");
- if (!f)
- return;
+ //" /*%4d*/ <%f, %f>, <%f, %f>, <%f,%f>, <%f,%f>"
+ out(" /*%4d*/ ", segNr);
+ vec2(startX, startY);
+ out(", ");
+ vec2(startCtrlX, startCtrlY);
+ out(", ");
+ vec2(endCtrlX, endCtrlY);
+ out(", ");
+ vec2(endX, endY);
+}
+
+
+
+
+/**
+ * Output the file header
+ */
+bool PovOutput::doHeader()
+{
time_t tim = time(NULL);
- fprintf(f, "/*#################################################\n");
- fprintf(f, "### This PovRay document was generated by Inkscape\n");
- fprintf(f, "### http://www.inkscape.org\n");
- fprintf(f, "### Created: %s", ctime(&tim));
- fprintf(f, "##################################################*/\n\n\n");
-
- std::vector<PovShapeInfo>povShapes; //A list for saving information about the shapes
-
- //we only need 8 for printf() calls that call dstr() 8 times
- gchar s1[G_ASCII_DTOSTR_BUF_SIZE + 1];
- gchar s2[G_ASCII_DTOSTR_BUF_SIZE + 1];
- gchar s3[G_ASCII_DTOSTR_BUF_SIZE + 1];
- gchar s4[G_ASCII_DTOSTR_BUF_SIZE + 1];
- gchar s5[G_ASCII_DTOSTR_BUF_SIZE + 1];
- gchar s6[G_ASCII_DTOSTR_BUF_SIZE + 1];
- gchar s7[G_ASCII_DTOSTR_BUF_SIZE + 1];
- gchar s8[G_ASCII_DTOSTR_BUF_SIZE + 1];
-
- double bignum = 1000000.0;
- double minx = bignum;
- double maxx = -bignum;
- double miny = bignum;
- double maxy = -bignum;
-
+ out("/*###################################################################\n");
+ out("### This PovRay document was generated by Inkscape\n");
+ out("### http://www.inkscape.org\n");
+ out("### Created: %s", ctime(&tim));
+ out("### Version: %s\n", Inkscape::version_string);
+ out("#####################################################################\n");
+ out("### NOTES:\n");
+ out("### ============\n");
+ out("### POVRay information can be found at\n");
+ out("### http://www.povray.org\n");
+ out("###\n");
+ out("### The 'AllShapes' objects at the bottom are provided as a\n");
+ out("### preview of how the output would look in a trace. However,\n");
+ out("### the main intent of this file is to provide the individual\n");
+ out("### shapes for inclusion in a POV project.\n");
+ out("###\n");
+ out("### For an example of how to use this file, look at\n");
+ out("### share/examples/istest.pov\n");
+ out("###\n");
+ out("### If you have any problems with this output, please see the\n");
+ out("### Inkscape project at http://www.inkscape.org, or visit\n");
+ out("### the #inkscape channel on irc.freenode.net . \n");
+ out("###\n");
+ out("###################################################################*/\n");
+ out("\n\n");
+ out("/*###################################################################\n");
+ out("## Exports in this file\n");
+ out("##==========================\n");
+ out("## Shapes : %d\n", nrShapes);
+ out("## Segments : %d\n", nrSegments);
+ out("## Nodes : %d\n", nrNodes);
+ out("###################################################################*/\n");
+ out("\n\n\n");
+ return true;
+}
- unsigned indx;
- for (indx = 0; indx < results.size() ; indx++)
- {
- //### Fetch the object from the repr info
- Inkscape::XML::Node *rpath = results[indx];
- gchar *id = (gchar *)rpath->attribute("id");
- SPObject *reprobj = SP_ACTIVE_DOCUMENT->getObjectByRepr(rpath);
- if (!reprobj)
- continue;
-
- //### Get the transform of the item
- if (!SP_IS_ITEM(reprobj))
- {
- continue;
- }
- SPItem *item = SP_ITEM(reprobj);
- NR::Matrix tf = sp_item_i2d_affine(item);
- //### Get the Shape
- if (!SP_IS_SHAPE(reprobj))//Bulia's suggestion. Allow all shapes
- {
- continue;
- }
- SPShape *shape = SP_SHAPE(reprobj);
- SPCurve *curve = shape->curve;
- if (sp_curve_empty(curve))
- continue;
+/**
+ * Output the file footer
+ */
+bool PovOutput::doTail()
+{
+ out("\n\n");
+ out("/*###################################################################\n");
+ out("### E N D F I L E\n");
+ out("###################################################################*/\n");
+ out("\n\n");
+ return true;
+}
- PovShapeInfo shapeInfo;
- shapeInfo.id = id;
- shapeInfo.color = "";
- //Try to get the fill color of the shape
- SPStyle *style = SP_OBJECT_STYLE(shape);
- /* fixme: Handle other fill types, even if this means translating gradients to a single
+/**
+ * Output the curve data to buffer
+ */
+bool PovOutput::doCurve(SPItem *item, const String &id)
+{
+ using Geom::X;
+ using Geom::Y;
+
+ //### Get the Shape
+ if (!SP_IS_SHAPE(item))//Bulia's suggestion. Allow all shapes
+ return true;
+
+ SPShape *shape = SP_SHAPE(item);
+ SPCurve *curve = shape->curve;
+ if (curve->is_empty())
+ return true;
+
+ nrShapes++;
+
+ PovShapeInfo shapeInfo;
+ shapeInfo.id = id;
+ shapeInfo.color = "";
+
+ //Try to get the fill color of the shape
+ SPStyle *style = SP_OBJECT_STYLE(shape);
+ /* fixme: Handle other fill types, even if this means translating gradients to a single
flat colour. */
- if (style && (style->fill.type == SP_PAINT_TYPE_COLOR)) {
+ if (style)
+ {
+ if (style->fill.isColor())
+ {
// see color.h for how to parse SPColor
float rgb[3];
sp_color_get_rgb_floatv(&style->fill.value.color, rgb);
@@ -201,244 +289,405 @@ PovOutput::save(Inkscape::Extension::Output *mod, SPDocument *doc, gchar const *
* effective_opacity(shape) );
//gchar *str = g_strdup_printf("rgbf < %1.3f, %1.3f, %1.3f %1.3f>",
// rgb[0], rgb[1], rgb[2], 1.0 - dopacity);
- gchar *str = g_strdup_printf("rgbf < %s, %s, %s %s>",
- dstr(s1, rgb[0]), dstr(s2, rgb[1]), dstr(s3, rgb[2]), dstr(s4, 1.0 - dopacity));
+ String rgbf = "rgbf <";
+ rgbf.append(dstr(rgb[0])); rgbf.append(", ");
+ rgbf.append(dstr(rgb[1])); rgbf.append(", ");
+ rgbf.append(dstr(rgb[2])); rgbf.append(", ");
+ rgbf.append(dstr(1.0 - dopacity)); rgbf.append(">");
+ shapeInfo.color += rgbf;
+ }
+ }
+
+ povShapes.push_back(shapeInfo); //passed all tests. save the info
+
+ // convert the path to only lineto's and cubic curveto's:
+ Geom::Matrix tf = item->i2d_affine();
+ Geom::PathVector pathv = pathv_to_linear_and_cubic_beziers( curve->get_pathvector() * tf );
+
+ /*
+ * We need to know the number of segments (NR_CURVETOs/LINETOs, including
+ * closing line segment) before we write out segment data. Since we are
+ * going to skip degenerate (zero length) paths, we need to loop over all
+ * subpaths and segments first.
+ */
+ int segmentCount = 0;
+ /**
+ * For all Subpaths in the <path>
+ */
+ for (Geom::PathVector::const_iterator pit = pathv.begin(); pit != pathv.end(); ++pit)
+ {
+ /**
+ * For all segments in the subpath, including extra closing segment defined by 2geom
+ */
+ for (Geom::Path::const_iterator cit = pit->begin(); cit != pit->end_closed(); ++cit)
+ {
- shapeInfo.color += str;
- g_free(str);
+ // Skip zero length segments.
+ if( !cit->isDegenerate() ) ++segmentCount;
}
+ }
+
+ out("/*###################################################\n");
+ out("### PRISM: %s\n", id.c_str());
+ out("###################################################*/\n");
+ out("#declare %s = prism {\n", id.c_str());
+ out(" linear_sweep\n");
+ out(" bezier_spline\n");
+ out(" 1.0, //top\n");
+ out(" 0.0, //bottom\n");
+ out(" %d //nr points\n", segmentCount * 4);
+ int segmentNr = 0;
+
+ nrSegments += segmentCount;
+
+ /**
+ * at moment of writing, 2geom lacks proper initialization of empty intervals in rect...
+ */
+ Geom::Rect cminmax( pathv.front().initialPoint(), pathv.front().initialPoint() );
+
+
+ /**
+ * For all Subpaths in the <path>
+ */
+ for (Geom::PathVector::const_iterator pit = pathv.begin(); pit != pathv.end(); ++pit)
+ {
+
+ cminmax.expandTo(pit->initialPoint());
+
+ /**
+ * For all segments in the subpath, including extra closing segment defined by 2geom
+ */
+ for (Geom::Path::const_iterator cit = pit->begin(); cit != pit->end_closed(); ++cit)
+ {
+
+ // Skip zero length segments
+ if( cit->isDegenerate() )
+ continue;
+
+ if( is_straight_curve(*cit) )
+ {
+ Geom::Point p0 = cit->initialPoint();
+ Geom::Point p1 = cit->finalPoint();
+ segment(segmentNr++,
+ p0[X], p0[Y], p0[X], p0[Y], p1[X], p1[Y], p1[X], p1[Y] );
+ nrNodes += 8;
+ }
+ else if(Geom::CubicBezier const *cubic = dynamic_cast<Geom::CubicBezier const*>(&*cit))
+ {
+ std::vector<Geom::Point> points = cubic->points();
+ Geom::Point p0 = points[0];
+ Geom::Point p1 = points[1];
+ Geom::Point p2 = points[2];
+ Geom::Point p3 = points[3];
+ segment(segmentNr++,
+ p0[X],p0[Y], p1[X],p1[Y], p2[X],p2[Y], p3[X],p3[Y]);
+ nrNodes += 8;
+ }
+ else
+ {
+ err("logical error, because pathv_to_linear_and_cubic_beziers was used");
+ return false;
+ }
+
+ if (segmentNr < segmentCount)
+ out(",\n");
+ else
+ out("\n");
+ if (segmentNr > segmentCount)
+ {
+ err("Too many segments");
+ return false;
+ }
+
+ cminmax.expandTo(cit->finalPoint());
- povShapes.push_back(shapeInfo); //passed all tests. save the info
-
- int curveNr;
-
- //Count the NR_CURVETOs/LINETOs
- int segmentCount=0;
- NArtBpath *bp = curve->bpath;
- for (curveNr=0 ; curveNr<curve->length ; curveNr++, bp++)
- if (bp->code == NR_CURVETO || bp->code == NR_LINETO)
- segmentCount++;
-
- bp = curve->bpath;
- double cminx = bignum;
- double cmaxx = -bignum;
- double cminy = bignum;
- double cmaxy = -bignum;
- double lastx = 0.0;
- double lasty = 0.0;
-
- fprintf(f, "/*##############################################\n");
- fprintf(f, "### PRISM: %s\n", id);
- fprintf(f, "##############################################*/\n");
- fprintf(f, "#declare %s = prism {\n", id);
- fprintf(f, " linear_sweep\n");
- fprintf(f, " bezier_spline\n");
- fprintf(f, " 1.0, //top\n");
- fprintf(f, " 0.0, //bottom\n");
- fprintf(f, " %d, //nr points\n", segmentCount * 4);
- int segmentNr = 0;
- for (bp = curve->bpath, curveNr=0 ; curveNr<curve->length ; curveNr++, bp++) {
- using NR::X;
- using NR::Y;
- NR::Point const p1(bp->c(1) * tf);
- NR::Point const p2(bp->c(2) * tf);
- NR::Point const p3(bp->c(3) * tf);
- double const x1 = p1[X], y1 = p1[Y];
- double const x2 = p2[X], y2 = p2[Y];
- double const x3 = p3[X], y3 = p3[Y];
-
- switch (bp->code) {
- case NR_MOVETO:
- case NR_MOVETO_OPEN:
- //fprintf(f, "moveto: %f %f\n", bp->x3, bp->y3);
- break;
- case NR_CURVETO:
-
- //fprintf(f, " /*%4d*/ <%f, %f>, <%f, %f>, <%f,%f>, <%f,%f>",
- // segmentNr++, lastx, lasty, x1, y1, x2, y2, x3, y3);
- fprintf(f, " /*%4d*/ <%s, %s>, <%s, %s>, <%s,%s>, <%s,%s>",
- segmentNr++,
- dstr(s1, lastx), dstr(s2, lasty),
- dstr(s3, x1), dstr(s4, y1),
- dstr(s5, x2), dstr(s6, y2),
- dstr(s7, x3), dstr(s8, y3));
-
- if (segmentNr < segmentCount)
- fprintf(f, ",\n");
- else
- fprintf(f, "\n");
-
- if (lastx < cminx)
- cminx = lastx;
- if (lastx > cmaxx)
- cmaxx = lastx;
- if (lasty < cminy)
- cminy = lasty;
- if (lasty > cmaxy)
- cmaxy = lasty;
- break;
- case NR_LINETO:
-
- //fprintf(f, " /*%4d*/ <%f, %f>, <%f, %f>, <%f,%f>, <%f,%f>",
- // segmentNr++, lastx, lasty, lastx, lasty, x3, y3, x3, y3);
- fprintf(f, " /*%4d*/ <%s, %s>, <%s, %s>, <%s,%s>, <%s,%s>",
- segmentNr++,
- dstr(s1, lastx), dstr(s2, lasty),
- dstr(s3, lastx), dstr(s4, lasty),
- dstr(s5, x3), dstr(s6, y3),
- dstr(s7, x3), dstr(s8, y3));
-
- if (segmentNr < segmentCount)
- fprintf(f, ",\n");
- else
- fprintf(f, "\n");
-
- //fprintf(f, "lineto\n");
- if (lastx < cminx)
- cminx = lastx;
- if (lastx > cmaxx)
- cmaxx = lastx;
- if (lasty < cminy)
- cminy = lasty;
- if (lasty > cmaxy)
- cmaxy = lasty;
- break;
- case NR_END:
- //fprintf(f, "end\n");
- break;
}
- lastx = x3;
- lasty = y3;
}
- fprintf(f, "}\n");
- /*
- fprintf(f, "#declare %s_MIN_X = %4.3f;\n", id, cminx);
- fprintf(f, "#declare %s_CENTER_X = %4.3f;\n", id, (cmaxx+cminx)/2.0);
- fprintf(f, "#declare %s_MAX_X = %4.3f;\n", id, cmaxx);
- fprintf(f, "#declare %s_WIDTH = %4.3f;\n", id, cmaxx-cminx);
- fprintf(f, "#declare %s_MIN_Y = %4.3f;\n", id, cminy);
- fprintf(f, "#declare %s_CENTER_Y = %4.3f;\n", id, (cmaxy+cminy)/2.0);
- fprintf(f, "#declare %s_MAX_Y = %4.3f;\n", id, cmaxy);
- fprintf(f, "#declare %s_HEIGHT = %4.3f;\n", id, cmaxy-cminy);
- */
- fprintf(f, "#declare %s_MIN_X = %s;\n", id, dstr(s1, cminx));
- fprintf(f, "#declare %s_CENTER_X = %s;\n", id, dstr(s1, (cmaxx+cminx)/2.0));
- fprintf(f, "#declare %s_MAX_X = %s;\n", id, dstr(s1, cmaxx));
- fprintf(f, "#declare %s_WIDTH = %s;\n", id, dstr(s1, cmaxx-cminx));
- fprintf(f, "#declare %s_MIN_Y = %s;\n", id, dstr(s1, cminy));
- fprintf(f, "#declare %s_CENTER_Y = %s;\n", id, dstr(s1, (cmaxy+cminy)/2.0));
- fprintf(f, "#declare %s_MAX_Y = %s;\n", id, dstr(s1, cmaxy));
- fprintf(f, "#declare %s_HEIGHT = %s;\n", id, dstr(s1, cmaxy-cminy));
- if (shapeInfo.color.length()>0)
- fprintf(f, "#declare %s_COLOR = %s;\n",
- id, shapeInfo.color.c_str());
- fprintf(f, "/*##############################################\n");
- fprintf(f, "### end %s\n", id);
- fprintf(f, "##############################################*/\n\n\n\n");
- if (cminx < minx)
- minx = cminx;
- if (cmaxx > maxx)
- maxx = cmaxx;
- if (cminy < miny)
- miny = cminy;
- if (cmaxy > maxy)
- maxy = cmaxy;
-
-
- }//for
+ out("}\n");
+
+ double cminx = cminmax.min()[X];
+ double cmaxx = cminmax.max()[X];
+ double cminy = cminmax.min()[Y];
+ double cmaxy = cminmax.max()[Y];
+
+ out("#declare %s_MIN_X = %s;\n", id.c_str(), DSTR(cminx));
+ out("#declare %s_CENTER_X = %s;\n", id.c_str(), DSTR((cmaxx+cminx)/2.0));
+ out("#declare %s_MAX_X = %s;\n", id.c_str(), DSTR(cmaxx));
+ out("#declare %s_WIDTH = %s;\n", id.c_str(), DSTR(cmaxx-cminx));
+ out("#declare %s_MIN_Y = %s;\n", id.c_str(), DSTR(cminy));
+ out("#declare %s_CENTER_Y = %s;\n", id.c_str(), DSTR((cmaxy+cminy)/2.0));
+ out("#declare %s_MAX_Y = %s;\n", id.c_str(), DSTR(cmaxy));
+ out("#declare %s_HEIGHT = %s;\n", id.c_str(), DSTR(cmaxy-cminy));
+ if (shapeInfo.color.length()>0)
+ out("#declare %s_COLOR = %s;\n",
+ id.c_str(), shapeInfo.color.c_str());
+ out("/*###################################################\n");
+ out("### end %s\n", id.c_str());
+ out("###################################################*/\n\n\n\n");
+
+ if (cminx < minx)
+ minx = cminx;
+ if (cmaxx > maxx)
+ maxx = cmaxx;
+ if (cminy < miny)
+ miny = cminy;
+ if (cmaxy > maxy)
+ maxy = cmaxy;
+
+ return true;
+}
+/**
+ * Descend the svg tree recursively, translating data
+ */
+bool PovOutput::doTreeRecursive(SPDocument *doc, SPObject *obj)
+{
+
+ String id;
+ if (!obj->getId())
+ {
+ char buf[16];
+ sprintf(buf, "id%d", idIndex++);
+ id = buf;
+ }
+ else
+ {
+ id = obj->getId();
+ }
+
+ if (SP_IS_ITEM(obj))
+ {
+ SPItem *item = SP_ITEM(obj);
+ if (!doCurve(item, id))
+ return false;
+ }
+
+ /**
+ * Descend into children
+ */
+ for (SPObject *child = obj->firstChild() ; child ; child = child->next)
+ {
+ if (!doTreeRecursive(doc, child))
+ return false;
+ }
+
+ return true;
+}
+
+/**
+ * Output the curve data to buffer
+ */
+bool PovOutput::doTree(SPDocument *doc)
+{
+ double bignum = 1000000.0;
+ minx = bignum;
+ maxx = -bignum;
+ miny = bignum;
+ maxy = -bignum;
+
+ if (!doTreeRecursive(doc, doc->root))
+ return false;
//## Let's make a union of all of the Shapes
- if (!povShapes.empty()) {
- char const *id = "AllShapes";
- fprintf(f, "/*##############################################\n");
- fprintf(f, "### UNION OF ALL SHAPES IN DOCUMENT\n");
- fprintf(f, "##############################################*/\n");
- fprintf(f, "\n\n");
- fprintf(f, "/**\n");
- fprintf(f, " * Allow the user to redefine the finish{}\n");
- fprintf(f, " * by declaring it before #including this file\n");
- fprintf(f, " */\n");
- fprintf(f, "#ifndef (%s_Finish)\n", id);
- fprintf(f, "#declare %s_Finish = finish {\n", id);
- fprintf(f, " phong 0.5\n");
- fprintf(f, " reflection 0.3\n");
- fprintf(f, " specular 0.5\n");
- fprintf(f, "}\n");
- fprintf(f, "#end\n");
- fprintf(f, "\n\n");
- fprintf(f, "#declare %s = union {\n", id);
- for (unsigned i = 0 ; i < povShapes.size() ; i++) {
- fprintf(f, " object { %s\n", povShapes[i].id.c_str());
- fprintf(f, " texture { \n");
+ if (povShapes.size()>0)
+ {
+ String id = "AllShapes";
+ char *pfx = (char *)id.c_str();
+ out("/*###################################################\n");
+ out("### UNION OF ALL SHAPES IN DOCUMENT\n");
+ out("###################################################*/\n");
+ out("\n\n");
+ out("/**\n");
+ out(" * Allow the user to redefine the finish{}\n");
+ out(" * by declaring it before #including this file\n");
+ out(" */\n");
+ out("#ifndef (%s_Finish)\n", pfx);
+ out("#declare %s_Finish = finish {\n", pfx);
+ out(" phong 0.5\n");
+ out(" reflection 0.3\n");
+ out(" specular 0.5\n");
+ out("}\n");
+ out("#end\n");
+ out("\n\n");
+ out("#declare %s = union {\n", id.c_str());
+ for (unsigned i = 0 ; i < povShapes.size() ; i++)
+ {
+ out(" object { %s\n", povShapes[i].id.c_str());
+ out(" texture { \n");
if (povShapes[i].color.length()>0)
- fprintf(f, " pigment { %s }\n", povShapes[i].color.c_str());
+ out(" pigment { %s }\n", povShapes[i].color.c_str());
else
- fprintf(f, " pigment { rgb <0,0,0> }\n");
- fprintf(f, " finish { %s_Finish }\n", id);
- fprintf(f, " } \n");
- fprintf(f, " } \n");
- }
- fprintf(f, "}\n\n\n\n");
+ out(" pigment { rgb <0,0,0> }\n");
+ out(" finish { %s_Finish }\n", pfx);
+ out(" } \n");
+ out(" } \n");
+ }
+ out("}\n\n\n\n");
double zinc = 0.2 / (double)povShapes.size();
- fprintf(f, "/*#### Same union, but with Z-diffs (actually Y in pov) ####*/\n");
- fprintf(f, "\n\n");
- fprintf(f, "/**\n");
- fprintf(f, " * Allow the user to redefine the Z-Increment\n");
- fprintf(f, " */\n");
- fprintf(f, "#ifndef (AllShapes_Z_Increment)\n");
- fprintf(f, "#declare AllShapes_Z_Increment = %s;\n", dstr(s1, zinc));
- fprintf(f, "#end\n");
- fprintf(f, "\n");
- fprintf(f, "#declare AllShapes_Z_Scale = 1.0;\n");
- fprintf(f, "\n\n");
- fprintf(f, "#declare %s_Z = union {\n", id);
- for (unsigned i = 0 ; i < povShapes.size() ; i++) {
- fprintf(f, " object { %s\n", povShapes[i].id.c_str());
- fprintf(f, " texture { \n");
+ out("/*#### Same union, but with Z-diffs (actually Y in pov) ####*/\n");
+ out("\n\n");
+ out("/**\n");
+ out(" * Allow the user to redefine the Z-Increment\n");
+ out(" */\n");
+ out("#ifndef (AllShapes_Z_Increment)\n");
+ out("#declare AllShapes_Z_Increment = %s;\n", DSTR(zinc));
+ out("#end\n");
+ out("\n");
+ out("#declare AllShapes_Z_Scale = 1.0;\n");
+ out("\n\n");
+ out("#declare %s_Z = union {\n", pfx);
+
+ for (unsigned i = 0 ; i < povShapes.size() ; i++)
+ {
+ out(" object { %s\n", povShapes[i].id.c_str());
+ out(" texture { \n");
if (povShapes[i].color.length()>0)
- fprintf(f, " pigment { %s }\n", povShapes[i].color.c_str());
+ out(" pigment { %s }\n", povShapes[i].color.c_str());
else
- fprintf(f, " pigment { rgb <0,0,0> }\n");
- fprintf(f, " finish { %s_Finish }\n", id);
- fprintf(f, " } \n");
- fprintf(f, " scale <1, %s_Z_Scale, 1>\n", id);
- fprintf(f, " } \n");
- fprintf(f, "#declare %s_Z_Scale = %s_Z_Scale + %s_Z_Increment;\n\n",
- id, id, id);
+ out(" pigment { rgb <0,0,0> }\n");
+ out(" finish { %s_Finish }\n", pfx);
+ out(" } \n");
+ out(" scale <1, %s_Z_Scale, 1>\n", pfx);
+ out(" } \n");
+ out("#declare %s_Z_Scale = %s_Z_Scale + %s_Z_Increment;\n\n",
+ pfx, pfx, pfx);
+ }
+
+ out("}\n");
+
+ out("#declare %s_MIN_X = %s;\n", pfx, DSTR(minx));
+ out("#declare %s_CENTER_X = %s;\n", pfx, DSTR((maxx+minx)/2.0));
+ out("#declare %s_MAX_X = %s;\n", pfx, DSTR(maxx));
+ out("#declare %s_WIDTH = %s;\n", pfx, DSTR(maxx-minx));
+ out("#declare %s_MIN_Y = %s;\n", pfx, DSTR(miny));
+ out("#declare %s_CENTER_Y = %s;\n", pfx, DSTR((maxy+miny)/2.0));
+ out("#declare %s_MAX_Y = %s;\n", pfx, DSTR(maxy));
+ out("#declare %s_HEIGHT = %s;\n", pfx, DSTR(maxy-miny));
+ out("/*##############################################\n");
+ out("### end %s\n", id.c_str());
+ out("##############################################*/\n");
+ out("\n\n");
}
- fprintf(f, "}\n");
- /*
- fprintf(f, "#declare %s_MIN_X = %4.3f;\n", id, minx);
- fprintf(f, "#declare %s_CENTER_X = %4.3f;\n", id, (maxx+minx)/2.0);
- fprintf(f, "#declare %s_MAX_X = %4.3f;\n", id, maxx);
- fprintf(f, "#declare %s_WIDTH = %4.3f;\n", id, maxx-minx);
- fprintf(f, "#declare %s_MIN_Y = %4.3f;\n", id, miny);
- fprintf(f, "#declare %s_CENTER_Y = %4.3f;\n", id, (maxy+miny)/2.0);
- fprintf(f, "#declare %s_MAX_Y = %4.3f;\n", id, maxy);
- fprintf(f, "#declare %s_HEIGHT = %4.3f;\n", id, maxy-miny);
- */
- fprintf(f, "#declare %s_MIN_X = %s;\n", id, dstr(s1, minx));
- fprintf(f, "#declare %s_CENTER_X = %s;\n", id, dstr(s1, (maxx+minx)/2.0));
- fprintf(f, "#declare %s_MAX_X = %s;\n", id, dstr(s1, maxx));
- fprintf(f, "#declare %s_WIDTH = %s;\n", id, dstr(s1, maxx-minx));
- fprintf(f, "#declare %s_MIN_Y = %s;\n", id, dstr(s1, miny));
- fprintf(f, "#declare %s_CENTER_Y = %s;\n", id, dstr(s1, (maxy+miny)/2.0));
- fprintf(f, "#declare %s_MAX_Y = %s;\n", id, dstr(s1, maxy));
- fprintf(f, "#declare %s_HEIGHT = %s;\n", id, dstr(s1, maxy-miny));
- fprintf(f, "/*##############################################\n");
- fprintf(f, "### end %s\n", id);
- fprintf(f, "##############################################*/\n\n\n\n");
- }
+ return true;
+}
+
+
+//########################################################################
+//# M A I N O U T P U T
+//########################################################################
+
+
+
+/**
+ * Set values back to initial state
+ */
+void PovOutput::reset()
+{
+ nrNodes = 0;
+ nrSegments = 0;
+ nrShapes = 0;
+ idIndex = 0;
+ outbuf.clear();
+ povShapes.clear();
+}
+
+
+
+/**
+ * Saves the Shapes of an Inkscape SVG file as PovRay spline definitions
+ */
+void PovOutput::saveDocument(SPDocument *doc, gchar const *filename_utf8)
+{
+ reset();
+
+ //###### SAVE IN POV FORMAT TO BUFFER
+ //# Lets do the curves first, to get the stats
+ if (!doTree(doc))
+ {
+ err("Could not output curves for %s", filename_utf8);
+ return;
+ }
+
+ String curveBuf = outbuf;
+ outbuf.clear();
+
+ if (!doHeader())
+ {
+ err("Could not write header for %s", filename_utf8);
+ return;
+ }
+
+ outbuf.append(curveBuf);
+
+ if (!doTail())
+ {
+ err("Could not write footer for %s", filename_utf8);
+ return;
+ }
+
+
+
+
+ //###### WRITE TO FILE
+ Inkscape::IO::dump_fopen_call(filename_utf8, "L");
+ FILE *f = Inkscape::IO::fopen_utf8name(filename_utf8, "w");
+ if (!f)
+ return;
+
+ for (String::iterator iter = outbuf.begin() ; iter!=outbuf.end(); iter++)
+ {
+ int ch = *iter;
+ fputc(ch, f);
+ }
- //All done
fclose(f);
}
+
+
+
+//########################################################################
+//# EXTENSION API
+//########################################################################
+
+
+
+#include "clear-n_.h"
+
+
+
+/**
+ * API call to save document
+*/
+void
+PovOutput::save(Inkscape::Extension::Output */*mod*/,
+ SPDocument *doc, gchar const *filename_utf8)
+{
+ /* See comments in JavaFSOutput::save re the name `filename_utf8'. */
+ saveDocument(doc, filename_utf8);
+}
+
+
+
+/**
+ * Make sure that we are in the database
+ */
+bool PovOutput::check (Inkscape::Extension::Extension */*module*/)
+{
+ /* We don't need a Key
+ if (NULL == Inkscape::Extension::db.get(SP_MODULE_KEY_OUTPUT_POV))
+ return FALSE;
+ */
+
+ return true;
+}
+
+
+
/**
* This is the definition of PovRay output. This function just
* calls the extension system with the memory allocated XML that
PovOutput::init()
{
Inkscape::Extension::build_from_mem(
- "<inkscape-extension>\n"
- "<name>PovRay Output</name>\n"
+ "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
+ "<name>" N_("PovRay Output") "</name>\n"
"<id>org.inkscape.output.pov</id>\n"
"<output>\n"
"<extension>.pov</extension>\n"
"<mimetype>text/x-povray-script</mimetype>\n"
- "<filetypename>PovRay (*.pov) (export splines)</filetypename>\n"
- "<filetypetooltip>PovRay Raytracer File</filetypetooltip>\n"
+ "<filetypename>" N_("PovRay (*.pov) (paths and shapes only)") "</filetypename>\n"
+ "<filetypetooltip>" N_("PovRay Raytracer File") "</filetypetooltip>\n"
"</output>\n"
"</inkscape-extension>",
new PovOutput());
-} //namespace Internal
-} //namespace Extension
-} //namespace Inkscape
+} // namespace Internal
+} // namespace Extension
+} // namespace Inkscape
/*
fill-column:99
End:
*/
-// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :