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/* |
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tgf-gostream.cc, part of |
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|
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treegraph |
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|
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Tree formatting program |
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|
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Generates vector graphics (SVG,EPS) from .tgf-tree description files. |
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|
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Copyright (c) 2003-04 by Joern Mueller |
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|
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|
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This program is free software; you can redistribute it and/or |
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modify it under the terms of the GNU General Public License |
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as published by the Free Software Foundation; either version 2 |
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of the License, or (at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program (GPL.html); if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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(also: http://www.gnu.org) |
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*/ |
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|
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|
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|
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|
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#include "tgf-gostream.h" |
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#include "tgf-tree.h" |
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#include "tgf-main.h" |
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#include <cstdio> |
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|
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/* |
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** |
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** |
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** |
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** gostream |
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** |
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** |
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** |
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*/ |
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|
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void gostream::write_nodelabel(const fPoint& pos, const std::string& str) |
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{ |
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|
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fontstyle tmp; |
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tmp.fontsize=12; |
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tmp.face=fs_bold; |
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write_text(fstring(str,tmp),pos); |
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} |
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|
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|
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/* |
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** |
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** |
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** |
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** svg_ostream |
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** |
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** |
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** |
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*/ |
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|
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const float PiOver2=asin(1.0); |
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|
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|
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void svg_ostream::moveto(float x,float y) |
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{ |
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s << 'M'<< x << ' ' << y; |
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|
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} |
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|
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|
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void svg_ostream::lineto(float x,float y) |
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{ |
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s << 'L' << x << ' ' << y; |
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|
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} |
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|
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void svg_ostream::curveto(float x1,float y1, float x2,float y2, float x3,float y3) |
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{ |
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s<< 'C' << x1 <<' ' << y1 << ' '<< x2 <<' ' << y2 << ' '<< x3 <<' ' << y3; |
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} |
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|
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void svg_ostream::write_head(const fRect& paper, const fRect& bbox, float lthick) |
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{ |
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s << "<?xml version=\"1.0\" standalone=\"no\"?>\n"; |
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s << "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 20010904//EN\"\n"; |
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s << "\"http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd\">\n"; |
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//hier noch richtige Strichbreite einsetzen: |
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s << "<svg style=\"fill:none;stroke:#000000;stroke-linecap:round;stroke-width:"<<lthick; |
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s << ";font-family:Helvetica; font-style:normal; font-weight:normal; fill-opacity:1; fill-rule:evenodd; stroke-opacity:1; \"\n"; |
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s << "width=\""<<paper.right<<"\"\n"; |
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s << "height=\""<<paper.bottom<<"\"\n"; |
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s << "transform=\"translate("<<0.5*(paper.right-bbox.right) <<","<< 0.5*(paper.bottom-bbox.bottom)<< ")\"\n"; |
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s << ">\n"; |
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|
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|
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} |
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|
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void svg_ostream::write_foot(void) |
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{ |
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s << "\n</svg>\n"; |
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s.flush(); |
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} |
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|
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void svg_ostream::write_text(const fstring& str, const fPoint& p, float angle) |
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{ |
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s << "<text style=\"fill:#000000;stroke:none;font-size:"<<str.fontsize<<"px"; |
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if(str.face==fs_italic) |
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s << ";font-weight:normal;font-style:italic"; |
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else if(str.face==fs_bold) |
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s << ";font-weight:bold;font-style:normal"; |
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// else aus << "font-weight:normal;font-style:normal";//Standard: plain |
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s << "\"\nx=\"0\" y=\"0\""; |
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s << "\ntransform=\"matrix("; |
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float c1=cos(angle),s1=sin(angle); |
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s<<c1<<","<< s1<<","<<-s1<<","<<c1<<","; |
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s<<p.x<<","<<p.y<<")\""; |
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s <<">"; |
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s << str; |
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s << "</text>\n"; |
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} |
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|
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void svg_ostream::write_rgabel(float l1,float y1 ,float l2,float y2,float xx,float maxr) |
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{ |
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float hdmt=0.5*maxr; |
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|
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s << "<path d=\""; |
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s << "M" << xx+l1 << " " << y1; |
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s << "H" << xx+maxr; |
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s << "C" << xx+hdmt << " " << y1 << " " << xx << " " << y1+hdmt; |
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s << " " << xx << " " << y1+maxr; |
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s << "V" << y2-maxr; |
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s << "C" << xx << " " << y2-hdmt << " " << xx+hdmt << " " << y2; |
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s << " " << xx+maxr << " " << y2; |
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s << "H" << xx+l2; |
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s << "\" />\n";//path |
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|
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} |
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|
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void svg_ostream::write_egabel(float l1,float y1,float l2,float y2,float xx) |
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{ |
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s << "<path d=\""; |
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s << "M" << xx+l1 << " " << y1; |
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s << "H" << xx; |
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s << "V" << y2; |
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s << "H" << xx+l2; |
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s << "\" />\n";//path |
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} |
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|
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void svg_ostream::write_hline(float x1,float y1,float l) |
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{ |
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s << "<line x1=\"" << x1 << "\" y1=\"" << y1 << "\" "; |
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s << "x2=\"" << x1+l << "\" y2=\"" << y1 << "\" />\n"; |
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|
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} |
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|
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void svg_ostream::write_klammer(const fstring& txt,float y1, |
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float y2,float x,float ext, int style) |
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{ |
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|
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y1-=ext; |
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y2+=ext; |
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|
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if(!(style&klammer::eckig)){ |
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|
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s << "<path style=\"stroke-linejoin:round;stroke-linecap:round;stroke-width:0.8\"\n"; |
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|
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float ll=0.5*fabs(y2-y1); |
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if(ll>20.0) ll=20.0; |
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float frc=0.035*ll; |
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|
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float md=0.5*(y1+y2); |
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s << "d=\""; |
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|
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moveto(x,y2); |
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curveto(x+3,y2-4*frc, x+3,y2-4*frc, x+3,y2-8*frc); |
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lineto(x+3,md+7*frc); |
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curveto(x+3,md+5*frc, x+3,md+2*frc, x+6,md); |
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|
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moveto(x+6,md); |
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curveto(x+3.5,md+3*frc, x+3.5,md+5*frc, x+3.5,md+7*frc); |
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lineto(x+3.5,y2-8*frc); |
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curveto(x+3.5,y2-5*frc, x+3.5,y2-3*frc, x,y2); |
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|
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moveto(x,y1); |
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curveto(x+3,y1+4*frc, x+3,y1+4*frc, x+3,y1+8*frc); |
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lineto(x+3,md-7*frc); |
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curveto(x+3,md-5*frc, x+3,md-2*frc, x+6,md); |
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|
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moveto(x+6,md); |
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curveto(x+3.5,md-3*frc, x+3.5,md-5*frc, x+3.5,md-7*frc); |
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lineto(x+3.5,y1+8*frc); |
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curveto(x+3.5,y1+5*frc, x+3.5,y1+3*frc, x,y1); |
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s<<"\"\n/>"; |
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|
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} else { |
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s<< "<g>"; |
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s << "<path style=\"stroke-linejoin:round;stroke-linecap:butt;stroke-width:0.8\" "; |
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s << "d=\"M"<<x<<' '<<y1; |
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s << " H"<<x+4.0<<"V"<<y2<<"H"<<x<<"\" />\n"; |
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s << "<path style=\"stroke-linecap:butt;stroke-width:1\" "; |
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s << "d=\"M"<<x+4.0-0.7<<' '<<y1<<"V"<<y2<<"\" />\n"; |
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s<<"</g>"; |
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} |
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|
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|
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|
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|
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fPoint m; |
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if(style&klammer::gedreht){ |
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m.x=x+8.0; |
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m.y=(y1+y2)/2+0.33*txt.fontsize; |
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} else { |
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m.x=x+8.0+txt.fontsize; |
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m.y=(y1+y2)/2+0.5*helv_stringwidth(txt); |
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} |
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write_text(txt,m,(style&klammer::gedreht)?0:-PiOver2); |
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|
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|
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} |
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|
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|
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|
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void svg_ostream::write_rule(const fPoint& pos, float z,float wd) |
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{ |
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s<<"<g style=\"stroke-linecap:butt;stroke-width:1\">\n"; |
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write_hline(pos.x,pos.y,wd); |
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s<<"<g style=\"stroke-width:0.3\">\n"; |
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|
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int i; |
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float x1,l; |
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for(int i=0; i<=10; i++){ |
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x1=pos.x+i*0.1*wd; |
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l=2.0; |
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if(i==0 || i==10) |
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l=3.0; |
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else if(i==5) |
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l=2.5; |
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s << "<line x1=\"" << x1 << "\" y1=\"" << pos.y-l << "\" "; |
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s << "x2=\"" << x1 << "\" y2=\"" << pos.y+l << "\" />\n"; |
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} |
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s<< "</g></g>\n"; |
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|
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fontstyle tmp; |
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tmp.fontsize=12; |
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tmp.face=fs_bold; |
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char st[10]; |
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sprintf(st,"%.5g",z); |
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fstring ft(st,tmp); |
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fPoint m; |
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m.x=pos.x+wd/2-0.5*helv_stringwidth(ft); |
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m.y=pos.y+16; |
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write_text(ft,m); |
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|
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} |
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|
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void svg_ostream::write_arrow(const fPoint& pos, float angle_deg) |
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{ |
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cout << "Arrow geht noch nicht.\n"; |
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const float htief=9,hhbr=3.4,kerb=2.4; |
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s<<"<g transform=\"translate("<<pos.x<<","<<pos.y<<")\">\n"; |
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s<<"<g transform=\"rotate("<<angle_deg<<")\">\n"; |
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s << "<path style=\"stroke-linejoin:round;stroke-width:0.8\" "; |
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s << "d=\"M0 0L"<<htief<<" "<<hhbr; |
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// s << " H"<<x+4.0<<"V"<<y2+ext<<"H"<<x<<"\" />\n"; |
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|
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s<<"</g></g>"; |
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} |
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|
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void svg_ostream::write_nodelabel(const fPoint& pos, const std::string& str) |
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{ |
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s<<"<g style=\"fill:#FF0000\">"; |
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gostream::write_nodelabel(pos,str); |
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s << "</g>\n"; |
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|
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} |
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|
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|
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|
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/* |
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** |
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** |
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** |
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** ps_ostream |
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** |
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** |
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** |
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*/ |
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ps_ostream::ps_ostream(std::ostream& s1) : gostream(s1) |
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{ |
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finited=false; |
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|
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} |
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|
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void ps_ostream::setfont(const fontstyle& f) |
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//Reduces number of calls to scalefont/Makefont |
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{ |
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bool ch=(!finited||(f.face!=laststyle.face)||(f.fontsize!=laststyle.fontsize)); |
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if(ch){ |
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const float& q=f.fontsize; |
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if(f.face==fs_italic){ |
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s << "/Helvetica findfont ["<<q<<" 0 "<<0.25*q<<" "<<q<< " 0 0] makefont setfont\n"; |
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} else if(f.face==fs_bold) |
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s << "/Helvetica-Bold findfont "<<q<<" scalefont setfont\n"; |
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else |
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s << "/Helvetica findfont "<<q<<" scalefont setfont\n"; |
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laststyle=f; |
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finited=true; |
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} |
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} |
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|
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|
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void ps_ostream::moveto(float x,float y) |
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{ |
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s << x << ' ' << ty(y) << " M "; |
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|
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} |
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|
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|
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void ps_ostream::lineto(float x,float y) |
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{ |
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s << x << ' ' << ty(y) << " L "; |
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|
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} |
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|
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void ps_ostream::curveto(float x1,float y1, float x2,float y2, float x3,float y3) |
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{ |
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s<< x1 <<' ' << ty(y1) << ' '<< x2 <<' ' << ty(y2) << ' '<< x3 <<' ' << ty(y3) << " C "; |
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} |
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|
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|
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|
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void ps_ostream::write_head(const fRect& paper, const fRect& bbox, float lthick) |
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{ |
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|
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//bbox auf paper zentrieren. |
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yh=bbox.bottom; //fuer rhd.-Koordinaten unter PostScript |
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fPoint st(0.5*(paper.right-bbox.right),0.5*(paper.bottom-bbox.bottom)); |
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s << "%!PS-Adobe-3.0 EPSF-3.0\n"; |
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s << "%%Creator: treegraph " TGFVERSION "\n"; |
| 349 |
s << "%%BoundingBox: " << int(st.x) << ' ' << int(st.y) << ' '; |
| 350 |
s << int(st.x+bbox.right+1.0) << ' ' << int(st.y+bbox.bottom+1.0) <<endl; |
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s << "%%DocumentNeededFonts: Helvetica Helvetica-Bold\n";//Italic wird aus Plain konstruiert |
| 352 |
s << "%%EndComments\n"; |
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s << "%%BeginProlog\n"; |
| 354 |
// s << "150 dict begin "; |
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s << "/M {moveto} bind def /L {lineto} bind def /C {curveto} bind def\n"; |
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s << "/N {newpath} bind def /SW {show} bind def /S {stroke} bind def\n"; |
| 357 |
s << "/LS {lineto stroke} bind def\n"; |
| 358 |
s << "/SF {setfont} bind def /GS {gsave} bind def /GR {grestore} bind def\n"; |
| 359 |
s << st.x <<' '<< st.y<< " translate\n"; |
| 360 |
s << lthick << " setlinewidth 1 setlinecap\n"; |
| 361 |
s << "\n%%EndProlog\n"; |
| 362 |
|
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} |
| 364 |
|
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void ps_ostream::write_foot(void) |
| 366 |
{ |
| 367 |
s << "\n%%EOF\n"; |
| 368 |
s.flush(); |
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//Hier noch was wegen dict |
| 370 |
} |
| 371 |
|
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void ps_ostream::write_text(const fstring& str, const fPoint& p, float angle) |
| 373 |
{ |
| 374 |
setfont(str); |
| 375 |
s << p.x << " " << ty(p.y) << " M\n"; |
| 376 |
|
| 377 |
if(angle!=0.0){ |
| 378 |
s << "GS " << -angle*90/PiOver2 << " rotate "; |
| 379 |
} |
| 380 |
|
| 381 |
s << "("<<str<<") SW\n"; |
| 382 |
if(angle!=0.0){ |
| 383 |
s << "GR\n"; |
| 384 |
} |
| 385 |
|
| 386 |
} |
| 387 |
|
| 388 |
void ps_ostream::write_rgabel(float l1,float y1 ,float l2,float y2,float xx,float maxr) |
| 389 |
{ |
| 390 |
float hdmt=0.5*maxr; |
| 391 |
// s << "N "; |
| 392 |
moveto(xx+l1,y1); |
| 393 |
lineto(xx+maxr,y1); |
| 394 |
curveto(xx+hdmt,y1,xx,y1+hdmt,xx,y1+maxr); |
| 395 |
s<<endl; |
| 396 |
lineto(xx,y2-maxr); |
| 397 |
curveto(xx,y2-hdmt,xx+hdmt,y2,xx+maxr,y2); |
| 398 |
lineto(xx+l2,y2); |
| 399 |
s << "S\n"; |
| 400 |
|
| 401 |
|
| 402 |
} |
| 403 |
|
| 404 |
void ps_ostream::write_egabel(float l1,float y1,float l2,float y2,float xx) |
| 405 |
{ |
| 406 |
// s << "N "; |
| 407 |
moveto(xx+l1,y1); |
| 408 |
lineto(xx,y1); |
| 409 |
lineto(xx,y2); |
| 410 |
lineto(xx+l2,y2); |
| 411 |
s << "S\n"; |
| 412 |
} |
| 413 |
|
| 414 |
void ps_ostream::write_hline(float x1,float y1,float l) |
| 415 |
{ |
| 416 |
// s << "N "; |
| 417 |
moveto(x1,y1); |
| 418 |
lineto(x1+l,y1); |
| 419 |
s << "S\n"; |
| 420 |
} |
| 421 |
|
| 422 |
void ps_ostream::write_klammer(const fstring& txt,float y1, |
| 423 |
float y2,float x,float ext, int style) |
| 424 |
{ |
| 425 |
|
| 426 |
y1-=ext; |
| 427 |
y2+=ext; |
| 428 |
|
| 429 |
s << "GS\n"; |
| 430 |
|
| 431 |
if(!(style&klammer::eckig)){ |
| 432 |
|
| 433 |
float ll=0.5*fabs(y2-y1); |
| 434 |
if(ll>20.0) ll=20.0; |
| 435 |
float frc=0.035*ll; |
| 436 |
|
| 437 |
float md=0.5*(y1+y2); |
| 438 |
s << "0.8 setlinewidth 2 setlinejoin 1 setlinecap N\n"; |
| 439 |
|
| 440 |
moveto(x,y2); |
| 441 |
curveto(x+3,y2-4*frc, x+3,y2-4*frc, x+3,y2-8*frc); |
| 442 |
lineto(x+3,md+7*frc); |
| 443 |
curveto(x+3,md+5*frc, x+3,md+2*frc, x+6,md); |
| 444 |
s << endl; |
| 445 |
|
| 446 |
moveto(x+6,md); |
| 447 |
curveto(x+3.5,md+3*frc, x+3.5,md+5*frc, x+3.5,md+7*frc); |
| 448 |
lineto(x+3.5,y2-8*frc); |
| 449 |
curveto(x+3.5,y2-5*frc, x+3.5,y2-3*frc, x,y2); |
| 450 |
s<<endl; |
| 451 |
|
| 452 |
moveto(x,y1); |
| 453 |
curveto(x+3,y1+4*frc, x+3,y1+4*frc, x+3,y1+8*frc); |
| 454 |
lineto(x+3,md-7*frc); |
| 455 |
curveto(x+3,md-5*frc, x+3,md-2*frc, x+6,md); |
| 456 |
s << endl; |
| 457 |
|
| 458 |
moveto(x+6,md); |
| 459 |
curveto(x+3.5,md-3*frc, x+3.5,md-5*frc, x+3.5,md-7*frc); |
| 460 |
lineto(x+3.5,y1+8*frc); |
| 461 |
curveto(x+3.5,y1+5*frc, x+3.5,y1+3*frc, x,y1); |
| 462 |
|
| 463 |
} else { |
| 464 |
|
| 465 |
s << "0.8 setlinewidth 2 setlinejoin 0 setlinecap N\n"; |
| 466 |
moveto(x,y1); |
| 467 |
lineto(x+4.0,y1); |
| 468 |
lineto(x+4.0,y2); |
| 469 |
lineto(x,y2); |
| 470 |
s << "S\n"; |
| 471 |
s << "1 setlinewidth\n"; |
| 472 |
moveto(x+4.0-0.7,y1); |
| 473 |
lineto(x+4.0-0.7,y2); |
| 474 |
|
| 475 |
} |
| 476 |
|
| 477 |
|
| 478 |
s << "S GR\n"; |
| 479 |
|
| 480 |
fPoint m; |
| 481 |
if(style&klammer::gedreht){ |
| 482 |
m.x=x+8.0; |
| 483 |
m.y=(y1+y2)/2+0.33*txt.fontsize; |
| 484 |
} else { |
| 485 |
m.x=x+8.0+txt.fontsize; |
| 486 |
m.y=(y1+y2)/2+0.5*helv_stringwidth(txt); |
| 487 |
} |
| 488 |
write_text(txt,m,(style&klammer::gedreht)?0:-PiOver2); |
| 489 |
|
| 490 |
} |
| 491 |
|
| 492 |
|
| 493 |
|
| 494 |
void ps_ostream::write_rule(const fPoint& pos, float z,float wd) |
| 495 |
{ |
| 496 |
|
| 497 |
s<<"GS 0 setlinecap 1 setlinewidth\n"; |
| 498 |
write_hline(pos.x,pos.y,wd); |
| 499 |
s<<"0.3 setlinewidth\n"; |
| 500 |
|
| 501 |
int i; |
| 502 |
float x1,l; |
| 503 |
for(int i=0; i<=10; i++){ |
| 504 |
x1=pos.x+i*0.1*wd; |
| 505 |
l=2.0; |
| 506 |
if(i==0 || i==10) |
| 507 |
l=3.0; |
| 508 |
else if(i==5) |
| 509 |
l=2.5; |
| 510 |
// s << "N "; |
| 511 |
moveto(x1,pos.y-l); |
| 512 |
lineto(x1,pos.y+l); |
| 513 |
s<<"S\n"; |
| 514 |
} |
| 515 |
s<< "GR\n"; |
| 516 |
|
| 517 |
fontstyle tmp; |
| 518 |
tmp.fontsize=12; |
| 519 |
tmp.face=fs_bold; |
| 520 |
char st[10]; |
| 521 |
sprintf(st,"%.5g",z); |
| 522 |
fstring ft(st,tmp); |
| 523 |
fPoint m; |
| 524 |
m.x=pos.x+wd/2-0.5*helv_stringwidth(ft); |
| 525 |
m.y=pos.y+16; |
| 526 |
write_text(ft,m); |
| 527 |
|
| 528 |
|
| 529 |
} |
| 530 |
|
| 531 |
void ps_ostream::write_arrow(const fPoint& pos, float angle_deg) |
| 532 |
{ |
| 533 |
/* |
| 534 |
const float htief=9,hhbr=3.4,kerb=2.4; |
| 535 |
s<<"<g transform=\"translate("<<pos.x<<","<<pos.y<<")\">\n"; |
| 536 |
s<<"<g transform=\"rotate("<<angle_deg<<")\">\n"; |
| 537 |
s << "<path style=\"stroke-linejoin:round;stroke-width:0.8\""; |
| 538 |
s << "d=\"M0 0L"<<htief<<" "<<hhbr; |
| 539 |
// s << " H"<<x+4.0<<"V"<<y2+ext<<"H"<<x<<"\" />\n"; |
| 540 |
|
| 541 |
s<<"</g></g>"; |
| 542 |
*/ |
| 543 |
} |
| 544 |
|
| 545 |
void ps_ostream::write_nodelabel(const fPoint& pos, const std::string& str) |
| 546 |
{ |
| 547 |
s<<"1 0 0 setrgbcolor "; |
| 548 |
gostream::write_nodelabel(pos,str); |
| 549 |
s << "0 0 0 setrgbcolor \n"; |
| 550 |
|
| 551 |
} |
