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/*****
* drawgroup.h
* John Bowman
*
* Group elements in a picture to be deconstructed as a single object.
*****/
#ifndef DRAWGROUP_H
#define DRAWGROUP_H
#include "drawelement.h"
namespace camp {
class drawBegin : public drawElement {
public:
drawBegin() {}
virtual ~drawBegin() {}
bool begingroup() {return true;}
};
class drawEnd : public drawElement {
public:
drawEnd() {}
virtual ~drawEnd() {}
bool endgroup() {return true;}
};
class drawBegin3 : public drawElementLC {
string name;
double compression;
double granularity;
bool closed; // render the surface as one-sided; may yield faster rendering
bool tessellate; // use tessellated mesh to store straight patches
bool dobreak; // force breaking
bool nobreak; // force grouping for transparent patches
triple center;
int interaction;
public:
drawBegin3(string name, double compression, double granularity,
bool closed, bool tessellate, bool dobreak, bool nobreak,
triple center, int interaction) :
name(name), compression(compression), granularity(granularity),
closed(closed), tessellate(tessellate), dobreak(dobreak), nobreak(nobreak),
center(center), interaction(interaction) {}
virtual ~drawBegin3() {}
bool begingroup() {return true;}
bool begingroup3() {return true;}
bool write(prcfile *out, unsigned int *count, double compressionlimit,
groupsmap& groups) {
groupmap& group=groups.back();
if(name.empty()) name="group";
groupmap::const_iterator p=group.find(name);
unsigned c=(p != group.end()) ? p->second+1 : 0;
group[name]=c;
ostringstream buf;
buf << name;
if(c > 0) buf << "-" << (c+1);
if(interaction == BILLBOARD)
buf << "-" << (*count)++ << "\001";
prc::PRCoptions options(compression > 0.0 ?
max(compression,compressionlimit) : 0.0,
granularity,closed,tessellate,dobreak,nobreak);
groups.push_back(groupmap());
const string& s=buf.str();
out->begingroup(s.c_str(),&options,T);
return true;
}
drawBegin3(const double* t, const drawBegin3 *s) :
drawElementLC(t, s), name(s->name), compression(s->compression),
granularity(s->granularity), closed(s->closed), tessellate(s->tessellate),
dobreak(s->dobreak), nobreak(s->nobreak), interaction(s->interaction) {
center=t*s->center;
}
drawElement *transformed(const double* t) {
return new drawBegin3(t,this);
}
};
class drawEnd3 : public drawElement {
public:
drawEnd3() {}
virtual ~drawEnd3() {}
bool endgroup() {return true;}
bool endgroup3() {return true;}
bool write(prcfile *out, unsigned int *, double, groupsmap& groups) {
groups.pop_back();
out->endgroup();
return true;
}
};
}
GC_DECLARE_PTRFREE(camp::drawBegin);
GC_DECLARE_PTRFREE(camp::drawEnd);
#endif
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