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/*****
* drawclipbegin.h
* John Bowman
*
* Begin clip of picture to specified path.
*****/
#ifndef DRAWCLIPBEGIN_H
#define DRAWCLIPBEGIN_H
#include "drawelement.h"
#include "path.h"
#include "drawpath.h"
namespace camp {
class drawClipBegin : public drawSuperPathPenBase {
bool gsave;
bool stroke;
public:
void noncyclic() {
reportError("cannot clip to non-cyclic path");
}
drawClipBegin(const vm::array& src, bool stroke, pen pentype, bool gsave=true)
: drawSuperPathPenBase(src,pentype), gsave(gsave), stroke(stroke) {
if(!stroke && !cyclic()) noncyclic();
}
virtual ~drawClipBegin() {}
void bounds(bbox& b, iopipestream& iopipe, boxvector& vbox,
bboxlist& bboxstack) {
bboxstack.push_back(b);
bbox bpath;
if(stroke) strokebounds(bpath);
else drawSuperPathPenBase::bounds(bpath,iopipe,vbox,bboxstack);
bboxstack.push_back(bpath);
}
bool begingroup() {return true;}
void save(bool b) {
gsave=b;
}
bool draw(psfile *out) {
if(gsave) out->gsave();
if(empty()) return true;
writepath(out);
if(stroke) strokepath(out);
out->clip(pentype);
return true;
}
bool write(texfile *out, const bbox& bpath) {
if(gsave) out->gsave();
if(empty()) return true;
if(!settings::context(out->texengine)) {
out->verbatim(settings::beginpicture(out->texengine));
out->verbatim("(");
double width=bpath.right-bpath.left;
double height=bpath.top-bpath.bottom;
out->write(width*ps2tex);
out->verbatim(",");
out->write(height*ps2tex);
out->verbatimline(")%");
}
out->beginspecial();
out->beginraw();
writeshiftedpath(out);
if(stroke) strokepath(out);
out->clip(pentype);
out->endraw();
out->endspecial();
return true;
}
drawElement *transformed(const transform& t)
{
return new drawClipBegin(transpath(t),stroke,transpen(t));
}
};
}
#endif
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